41results about How to "Guarantee not to enter" patented technology

The invention relates to an anti-corrosion inclusion bored concrete pile used for saline soil foundations and a construction method thereof. The bored concrete pile comprises a concrete pile body in structure, wherein the inside of the concrete pile body is provided with a reinforcement cage, a flexible, watertight and anticorrosive protection tube is covered on the bottom and periphery of the concrete pile body; and the watertight and anticorrosive protection tube is formed by hot-pressing or welding n layers of polyethylene geotextile bags and n-1 layers of geomembranes, and n is not less than 2. The construction method comprises the following steps: injecting cement mortar between pile holes and the watertight and anticorrosive protection tube, then injecting water in the watertight and anticorrosive protection tube to ensure that the watertight and anticorrosive protection tube expands to the pile hole wall, then injecting concrete paste in the watertight and anticorrosive protection tube, discharging water from the watertight and anticorrosive protection tube by using the concrete paste, and obtaining the bored concrete pile when concrete is set. The invention solves the anticorrosive problem of the concrete pile in saline soil areas, effectively reduces the production cost of the anti-corrosion bored concrete pile and satisfies the strength requirements of projects. The anti-corrosion inclusion bored concrete pile of the invention is applicable to the concrete pile construction with anticorrosive requirements and is especially used in saline soil foundations.

The invention discloses a video stream Qos control method for broadband trunking call service. As for an I-frame request (IR), the minimum transmission interval for a key frame is defined, and the I-frame request exceeding the frequency is discarded and not processed; and as for a receiving report (RP), a receiving end periodically transmits the received packet number and the discarded packet number, after a calling side receives the report, a video stream transmission code rate and a frame rate are dynamically adjusted according to the packet discarding condition, and the resolution remains unchanged. Problems of blocked and paused videos and a broken screen caused by network coverage, packet discarding, error codes and the like in B-Trunc single call and group call can be effectively solved.

The invention provides a graphite dust collector which comprises an atomizer, a chip liquid pump, a chip liquid filtering screen, a dust absorption cover and a water-bath-type filter, wherein the atomizer is connected with the chip liquid pump; the chip liquid pump is connected with the chip liquid filtering screen through a chip liquid pipe; the chip liquid filtering screen intrudes into a chip liquid box; the dust absorption cover is internally provided with a common filtering screen and a magnetized filtering screen respectively, and is connected with the air intake end of an axial-flow-type fan; the water-bath-type filter is connected with the air exhaust end of the axial-flow-type fan, and intrudes into the chip liquid box; the atomizer atomizes and sprays out a high-pressure chip liquid, and the atomized chip liquid captures graphite dust in air; the dust absorption cover absorbs the captured atomized chip liquid and filters twice; the atomized chip liquid is filtered by the water-bath-type filter, and clean air is exhausted; and the chip liquid by the filtering screen arranged in the chip liquid box is subjected to secondary filtering, and then enters the chip liquid pump so as to form circulation. Visibly, the device captures the graphite dust generated during a ball graphite cast iron machining process through the atomized chip liquid, and achieves a dust collection effect through water bath filtration.

The invention discloses an upper part C-ring cutting device of a canned-motor pump, and belongs to the technical field of maintenance of large-scale canned-motor pumps of nuclear power plants. The device comprises a circumferential guide rail, a circumferential sliding block, a radial guide rail, a radial sliding block and an angle grinder; the circumferential guide rail is arranged on a pump flange through a circumferential support body assembly, and a gap is reserved between the circumferential guide rail and the pump flange; the circumferential sliding block is arranged on the circumferential guide rail, so that the circumferential sliding block can slide in the circumferential direction of the circumferential guide rail; the radial guide rail is fixed on the circumferential sliding block, and the radial sliding block is arranged on the radial guide rail, so that the radial sliding block can slide in the radial direction of the radial guide rail; and the angle grinder is arranged onthe radial sliding block. According to the device, when the whole canned-motor pump is replaced, the operation is simple, and the use is convenient and flexible.

The invention provides an integrative physical examination instrument for electrocardiogram detection and urinalysis, which relates to a medical appliance for the electrocardiogram detection and the urinalysis and aims to multiplex two conventional instruments by hardware to realize integration. Especially, a rubber roller of a miniature thermal printer drives a movement mechanism of a supporting board of test paper by means of frictional connection, a photoelectric sensor is successively aligned with a color lump of the urinalysis project test paper, an electrocardiogram signal analog amplifier is arranged on a main circuit board, six paths of electrocardiogram signals of the electrocardiogram signal analog amplifier are directly connected to the input ends A0 to A5 of an analog signal of a main microprocessor, the other two paths of electrocardiogram signals are connected to the input ends A6 and A7 of a multiplexing signal of the main microprocessor by the gating of an analog switch (103), a red-green-blue three-color LED luminotron (10) and a light-sensitive cell (13) are arranged on a circuit board (0) of the photoelectric sensor, photoelectromotive force which is generated by the light-sensitive cell and is relevant to the color change of the color lump of the test paper also enters multiplexing passages A6 and A7 by the gating of the analog switch, and the gating of the analog switch is controlled by a photoelectric sensing signal transmitted by an infrared photoelectric switch element (17) when the supporting board of the test paper is inserted at the position of a pole terminal.

The invention relates to a high-altitude high-voltage isolation switch electric operating mechanism box, and the box comprises a box body, a top cover, an air-bag type top surface sealing strip, a double-layer door, an outer door frame, an outer door, an inner door frame, an inner door, and an automatic door closer hinge. The top of the box body is connected with the top cover through a fastening part, and at least one side of the periphery of the box body is provided with the double-layer door. The double-layer door comprises the outer door frame, the inner door frame, the outer door and the inner door. The outer door frame is disposed on the box body, and is connected with the box body through a hinge. The outer door achieves the sealing fit with the outer door frame. The inner door frame is disposed in the outer door frame, and the inner door is connected with the outer door frame through the automatic door closer hinge. The inner door achieves the sealing fit with the inner door frame. The box is simple in structure, is good in sealing effect, is high in reliability, is resistant to a low-temperature environment, is convenient to operate and maintain, and is also convenient for popularization and application.

The invention relates to a method for automatically controlling wind input from window and the window thereof. The method comprises: a first louver blade is equipped to make all the first louver blades in linkage, and a resetting mechanism for the first louver blade is further provided; when the wind is strong, the first louver blade has high wind pressure, all the first louver blades make the wind input to decrease under the action of the resetting mechanism, and when the wind is weaken, the wind inlet is increased under the action of the resetting mechanism. The window comprises a window frame (1), and a first louver blade (2), a plurality of parallelly disposed first rotating shaft (3) are disposed on the window frame (1), the first louver blade (2) is fixedly connected on the first rotating shaft (3) in the window frame (1), each first rotating shaft (3) is respectively connected with the resetting mechanism (4), so as to achieve the purpose that the first louver blade (2) can synchronously rotate and automatically reset. The invention can automatically adjust the indoor wind input in accordance with the strength of wind and rain, especially, when there is no person at home and the window is not closed, it can assure the rainwater not come into house. In addition, the invention can adjust the wind input direction as required, and has the advantages of simple structure and low cost.

The invention provides an EGR (Exhaust Gas Recirculation) mixer for a marine diesel engine. The EGR mixer comprises a mixer housing, an EGR gas introducing device and a discharging hole; the EGR gas inducting device is arranged on the mixer housing; the discharging hole formed in the lowest part of the mixer housing is used for discharging acidic liquid that is separated out during mixing high-temperature EGR gas with inter-cooled fresh air. According to the EGR mixer for the marine diesel engine, the discharging hole is formed in the lowest part of the mixer housing, which effectively overcomes the problem of discharging acidic liquid and prevents acidic liquid from entering the cylinder, and thus the EGR mixer is applicable to the marine diesel engine; an outlet end of an EGR gas introducing pipe is closed, a gas spray hole that is axially vertical to the fresh air flowing direction is formed in the EGR gas introducing pipe, and thereby, the EGR gas is vertical to the fresh air in flowing direction to generate a local turbulence which is beneficial for full mixing of gas; the EGR mixer for the marine diesel engine is simple in structure, and can be integrally dismounted, so that parts of the mixer can be conveniently replaced and temporarily dismounted for examination.

The invention relates to a cooling protection device for high-temperature flame observation of an afterburner. The cooling protection device comprises a shell, a cover plate, an observation window pressing cover and a transparent piece. The shell and the cover plate are fixedly connected through bolts. The shell is provided with a cooling water inlet, a cooling water outlet, a cable lead-out port, a cavity interior air inlet, a cavity interior air outlet and a cooling air inlet. The shell is internally provided with a cooling water pipeline, a cable pipeline, a cavity interior pipeline, a cooling air pipeline and an installing platform which communicates with the cavity interior pipeline. A baffle is arranged between the cable pipeline and the installing platform. An observation opening is formed in the side face of the shell and communicates with the installing platform. The observation window pressing cover and the transparent piece are installed at the position of the observation opening and fixed to the shell. The observation window pressing cover is provided with a ventilation hole, and the cooling air inlet communicates with the ventilation hole through the cooling air pipeline. The cooling protection device has the beneficial effects that the structure is compact, operation is convenient, work is reliable, cost is low, practicability is high, and application and popularization are easy and has high practical value.

The invention provides a lithium ion battery rack with double pipelines. The device comprises a battery rack, a cooling pipe, an exhaust pipe and a battery box; the battery rack comprises four mounting columns; the same top plate is mounted at the top ends of the four mounting columns; the same bottom plate is mounted at the bottom ends of the four mounting columns; a plurality of partition platesare mounted among the four mounting columns; the cooling pipe comprises an air supply pipe and an air inflow pipe; the air supply pipe is communicated with the air inflow pipe; a plurality of air outlets are formed in the air supply pipe; a first fan is mounted at the junction of the air supply pipe and the air inflow pipe; wherein the exhaust pipe comprises a main pipe and a plurality of branchpipes; the bottom side of the exhaust pipe is an air inlet; the top side of the exhaust pipe is an air outlet; the battery box comprises a box body; an air outflow pipe is arranged on the box body; aone-way valve is arranged in the air outflow pipe; cooling fins are arranged on the bottom side of the box body; the air outlet is connected with the cooling fins; and the air outflow pipe is connected with the corresponding branch pipes. The lithium ion battery rack with the double pipelines has the advantages of good heat dissipation effect, high safety performance and simple structure.

A mounting method of a torsion bar component is characterized in that a mounting hole corresponding to the torsion bar component is machined in a framework of a bogie; the torsion bar component transversely penetrates through the mounting hole, and the torsion bar component is connected with the mounting hole in the form of interference fit; a stopper used for axially limiting the torsion bar component is arranged in the mounting hole; and the stopper is in contact with the torsion bar component in an abutting manner. According to the mounting method of the torsion bar component, as the torsion bar component is directly mounted on the framework, a supporting seat component in an anti-roll torsion bar system is eliminated, the structure of an anti-roll torsion bar component is simplified, the production cost is reduced, the use reliability of the torsion bar component is not affected in the case of guaranteeing that the supporting seat component is eliminated, the connection between the torsion bar component and the framework is easy to realize, the connecting mode is simpler, the labor intensity of mounting the torsion bar component on the framework can be effectively reduced, and moreover, the space occupancy rate of the a connecting structure between the torsion bar component and the framework is small, and the structural compactness of the connecting structure between the torsion bar component and the framework is high. The invention further provides a torsion bar component mounting structure.

The invention discloses a manganese slag field in-situ treating agent and a using method thereof. The manganese slag field in-situ treating agent is formed by mixing the following raw materials in parts by mass: 15-30 parts of nano-scale calcium carbonate, 5-15 parts of sodium carbonate, 5-10 parts of ammonium bicarbonate and 55-65 parts of wormcast. The manganese slag field in-situ treating agent has the key point that manganese ions in a slag field and a percolate solution are mineralized by selecting excellent and efficient instant ion-type and nano-scale slow-release type manganese mineralizing agents and adopting a scientific proportion so as to generate insoluble minerals, and therefore, the ion activity is reduced, the ions are enabled not to migrate and transform under the nature condition so that the purpose of treating the pollution of the manganese slag field is achieved. According to the using method, by using a solubility product principle, carbanions are introduced in manganese slag to ensure that the free-state manganese ions are combined with the carbanions to form insoluble manganese carbonate, and the free-state manganese ions in the manganese slag are transformed into mineral-state manganese ions, and thus the manganese ions are fixed.

The invention relates to improvement of a probe of a streaming potential online measuring instrument and in particular relates to a novel design of a water inlet and a water outlet of a probe as improvement of a streaming potential online measuring instrument. The probe comprises a probe water inlet, a probe water outlet and a measuring chamber, wherein sand grains are sent into the probe along with sampling water from the probe water inlet to move in a parabolic manner; in the design of a registered streaming potential online measuring instrument, the water inlet and the water outlet of the probe are arranged on the same horizontal line; the fed sand grains are incapable of being discharged out of the outlet and enter the measuring chamber of the instrument, thus measuring signals are seriously interfered; according to the design, the horizontal line of the probe water outlet is lower than the horizontal line of the probe water inlet by a certain distance, so that the sand grains moving in the probe in the parabolic manner can be discharged out of the probe water outlet to ensure that the sand grains are incapable of entering the measuring chamber of the instrument, thereby ensuring accuracy and stability of the measuring signals of the instrument.

The invention discloses a two-stage type powdered coal destructive distillation system which comprises a horizontally-arranged drying tube. An inlet and outlet of the drying tube are communicated with a feeding inlet and a coal discharging bin respectively. An outlet of the bottom of the coal discharging bin is connected with an inlet of a destructive distillation tube, the destructive distillation tube is horizontally arranged and arranged below the drying tube, and an outlet of the destructive distillation tube is connected with a semi-coke output bin with a bottom opening; a heating pipeline is arranged outside the drying tube, the heating pipeline surrounds the drying tube, and the outer wall of the drying tube is the inner wall of the heating pipeline; the two ends of the heating pipeline are provided with a gas inlet and a gas outlet respectively, a heat storage type radiation tube is fixedly arranged on the outer side of the destructive distillation tube, and hot raw coke oven gas enters the heating pipeline from the gas inlet, passes through the heating pipeline and enters the heat storage type radiation tube from the gas outlet. Due to the two-section type design, a heating channel is arranged outside the drying tube, so that the drying tube is heated, a heat source of the heating channel is hot raw coke oven gas, and energy is saved.

The invention provides a house capable of preserving heat and dissipating heat and belongs to the technical field of house buildings. The house comprises a house body and a roof mounted on the house body in a covering manner; the house is characterized in that openings for ventilation are formed in the house body, specifically in top ends of various walls of the house body, and covering parts for shielding are mounted at the openings of the house body. According to the house, covering parts formed by block pieces are moved up and down along cavities at the openings of the housing to adjust the apertures of the openings and make full use of the space of the housing; in summer, hot air is relatively low in density and generally may be centralized at the indoor top; the openings are formed in the top of the house body, and the apertures of the openings are adjusted, such that the openings are completely opened to realize fast circulation with the outside and discharge indoor heat, thereby achieving the effects of cooling and heat dissipation; in winter, the apertures of the openings are adjusted, such that the openings are closed to ensure that no outdoor cold air comes in and no indoor heat goes out, thereby achieving the effect of heat preservation; besides, a hollow layer is formed among two block pieces, the house body and the roof to improve the effect of heat preservation.

Provided is a large-scale floor type heat preservation steel plate squat silo. A house type warehouse is still served as the main grain warehouse for long-term store in our country, but the height of grain storing is low (the height is below 6.5m commonly), the floor area is large, the degree of mechanism is low, a large number of high energy consumption building materials such as bricks and cement are used, and environmental protection can not be achieved. The large-scale floor type heat preservation steel plate squat silo comprises a foundation (1) and a silo body connected with the foundation; the silo body is composed of a silo cylinder body (2) and a silo top (5), and the silo top is provided with a center hole (3) with a flange; a large-scale axial flow fan (4) is connected with the center hole through a moving frame and / or the flange; the lower portion of the silo cylinder body is provided with a gate (6) which can satisfy the getting in and out of a large-scale grain machine. The large-scale floor type heat preservation steel plate squat silo is used as the steel grain warehouse for long-term store.

The invention provides a shield spiral conveyor and a shield tunneling machine. The shield spiral conveyor comprises a rotary cylinder discharging and cutting muck and a cylinder driving assembly used for driving the rotary cylinder to rotate. The cylinder driving assembly comprises a transmission bearing, an output gear and a driving part driving the output gear to rotate. The rotary cylinder is sleeved with the transmission bearing. The outer circle of the transmission bearing is fixedly connected with the rotary cylinder. The output gear is in engaged transmission with the outer circle of the transmission bearing. The shield tunneling machine comprises a shield and the shield spiral conveyor which is arranged in the shield. The shield spiral conveyor and the shield tunneling machine have the advantages of being good in stability, high in reliability, small in occupied space and the like.

The invention discloses a device for crushing grains, comprising a powder-removing drum, a feeding funnel, a feeding drum, a fan, an air suction pipe, a pump, a dust-absorbing cloth bag, a grinder and a bracket; The top of the powder drum is connected, and the feeding funnel is connected with the top of the feeding drum; the exhaust pipe is connected with the top of the powder removal drum, the inlet end of the pump is connected with the exhaust pipe, and the outlet end of the pump is connected with the vacuum bag; the bracket It is arranged in the powder removal cylinder, the bracket is connected with the inner surface of the powder removal cylinder through the ring plate, the fan is fixed in the bracket, and there is a gap between the bottom of the bracket and the bottom of the powder removal cylinder, and a plurality of through holes are provided on the ring plate. The inlet end of the grinder is communicated with the bottom of the powder removing cylinder; it also includes a plurality of magnet columns horizontally fixed in the powder removing cylinder. The invention realizes dust removal and pulverization of grains in one device, improves processing efficiency and reduces processing cost. The present invention can also remove metal particles from grains.

The invention provides an automobile body and an automobile comprising the automobile body. The automobile body comprises an automobile top plate and a top cover. A ventilation channel communicated with the outside is formed between the automobile top plate and the top cover, and the front and the rear of the ventilation channel are communicated. The automobile top plate comprises a front top plate, a movable skylight plate and a rear top plate. The front top plate and the rear top plate are different in height, and thus a skylight opening is formed between the first end portion of the front top plate and the first end portion of the rear top plate, wherein the first end portion of the front top plate and the first end portion of the rear top plate are close to each other. The first edge of the movable skylight plate is installed on the first end portion of the front top plate in a pivoted mode, the second edge of the movable skylight plate is movably connected to the first end portion of the rear top plate in an overlapped mode, and thus the skylight opening can be closed or opened. When the movable skylight plate is opened, a vacuum is formed when airflow in the ventilation channel flows through the position above the skylight opening, so that air in the automobile flows out of the automobile through the skylight opening and the ventilation channel, and thus air in the automobile can be changed while no resistance is caused in the automobile. When the movable skylight plate is closed, the air in the automobile is not affected by the outside because the interior of the automobile is totally separated from the ventilation channel.

The invention discloses a hole milling device and method for a corrugated copper pipe outer conductor coupling type leaky coaxial cable, and the device comprises a milling cutter, a groove milling die, and a lubricating oil atomizer. The groove milling die comprises a die body, and a through hole is formed in the axis direction of the die body. A milling cutter groove hole is formed in the upper section of the die body, an oil mist channel is further formed in the die body, an inlet of the oil mist channel is communicated with an air outlet of the lubricating oil atomizer, and an outlet of the oil mist channel is formed in one side of the milling cutter groove hole. According to the invention, the FRL air source is adopted to process the atomized lubricator, so that the liquid cutting fluid is atomized, and the atomized cutting fluid is blown to the cutting edge of the cutter to lubricate and cool by connecting the cable groove milling die with the oil mist hole channel through the pipeline, so that the groove opening of the cable outer conductor groove milling is smooth and burr-free, the electrical index of the cable is not influenced, and the service life of the cable is prolonged. The product quality is improved.

The invention relates to the technical field of electric cabinets, particularly to an air channel type heat radiation electric cabinet. The air channel type heat radiation electric cabinet includes a cabinet body, both sides of the cabinet body are provided with air channels, tail ends of the air channels are provided with air inlets, air outlets are arranged under the cabinet body, and sand-proof nets are arranged at the air inlets. When the air channel type heat radiation electric cabinet works, external cold air enters a box body through the air channels and electronic elements inside the box body are cooled; and since the sand-proof nets are installed, sand and dust can be prevented from entering the box body, thereby improving a sand prevention effect and achieving a good using effect.

The invention discloses a manganese slag field in-situ treating agent and a using method thereof. The manganese slag field in-situ treating agent is formed by mixing the following raw materials in parts by mass: 15-30 parts of nano-scale calcium carbonate, 5-15 parts of sodium carbonate, 5-10 parts of ammonium bicarbonate and 55-65 parts of wormcast. The manganese slag field in-situ treating agent has the key point that manganese ions in a slag field and a percolate solution are mineralized by selecting excellent and efficient instant ion-type and nano-scale slow-release type manganese mineralizing agents and adopting a scientific proportion so as to generate insoluble minerals, and therefore, the ion activity is reduced, the ions are enabled not to migrate and transform under the nature condition so that the purpose of treating the pollution of the manganese slag field is achieved. According to the using method, by using a solubility product principle, carbanions are introduced in manganese slag to ensure that the free-state manganese ions are combined with the carbanions to form insoluble manganese carbonate, and the free-state manganese ions in the manganese slag are transformed into mineral-state manganese ions, and thus the manganese ions are fixed.

The invention relates to a dust-removing and heat dissipating structure for a switch cabinet. One end of a ventilation pipe is provided with a stop and and a sealing block which are sleeved therebetween a spring which is sleeved on the ventilation pipe. The other end of the ventilation pipe is disposed inside a cavity of a filtering box and is rotarily provided with a nut, and a blind hole is arranged at one end of the ventilation pipe disposed inside the cavity of the filtering box. The blind hole is provided with a plurality of air inlet heads thereon. The blind hole of the air inlet head which is farthest to the right is provided with a sealing cover thereon. The left and right side of each air inlet head are separately provided with one air inlet pipe which is communicated with the through hole inside the air inlet head, while the other end of the air inlet pipe has an air inlet. The air inlet pipe is sleeved with a column-shaped sponge which is provided with a fixing through hole therein which corresponds to the air inlet pipe. The column-shaped sponge is provided with a filtering hole therein. The diameter of the filtering through hole is greater than that of the fixing through hole. The filtering through hole is provided with multiple filtering layers which are in left and right arrangement. According to the invention, the dust-removing and heat dissipation structure has an ingenious structure, can arrange a plurality of specific air flow channels in the cabinet body, dissipates heat from parts that have large heat to dissipate, and prevents dust from entering to the cabinet body.

The installation method of the torsion bar assembly is characterized in that the installation hole corresponding to the torsion bar assembly is processed on the frame of the bogie, the torsion bar assembly is crossed in the installation hole, and the torsion bar assembly and the installation hole are connected by interference fit A stopper for axially limiting the torsion bar assembly is arranged in the installation hole, and the stopper is in close contact with the torsion bar assembly. The present invention installs the torsion bar assembly directly on the frame, saves the supporting seat assembly in the anti-rolling torsion bar system, simplifies the structure of the anti-rolling torsion bar assembly, reduces its production cost, and ensures that the support seat assembly is omitted The use reliability of the torsion bar assembly is not affected, the connection between the torsion bar assembly and the frame is easy to realize, and the connection method is simpler, which not only can effectively reduce the labor intensity of installing the torsion bar assembly on the frame, but also the torsion bar assembly and the frame The space occupation rate of the connecting structure is small, and the structure is highly compact. The invention also provides a torsion bar assembly installation structure.

The invention relates to a cooling protection device for high-temperature flame observation of an afterburner. The cooling protection device comprises a shell, a cover plate, an observation window pressing cover and a transparent piece. The shell and the cover plate are fixedly connected through bolts. The shell is provided with a cooling water inlet, a cooling water outlet, a cable lead-out port, a cavity interior air inlet, a cavity interior air outlet and a cooling air inlet. The shell is internally provided with a cooling water pipeline, a cable pipeline, a cavity interior pipeline, a cooling air pipeline and an installing platform which communicates with the cavity interior pipeline. A baffle is arranged between the cable pipeline and the installing platform. An observation opening is formed in the side face of the shell and communicates with the installing platform. The observation window pressing cover and the transparent piece are installed at the position of the observation opening and fixed to the shell. The observation window pressing cover is provided with a ventilation hole, and the cooling air inlet communicates with the ventilation hole through the cooling air pipeline. The cooling protection device has the beneficial effects that the structure is compact, operation is convenient, work is reliable, cost is low, practicability is high, and application and popularization are easy and has high practical value.

The invention discloses an oil tank upper shell for a hydraulic retarder. The oil tank upper shell comprises a shell body. The oil tank upper shell is characterized in that a main oil duct and a secondary oil duct are arranged in the shell body, oil inlets which are communicated with an inner cavity of the shell body are respectively formed in the lower ends of the main oil duct and the secondary oil duct, oil outlets which are communicated with a working area are respectively formed in the upper ends of the main oil duct and the secondary oil duct, an air inlet which is used for supplying high-pressure air to the inner cavity of the shell body is formed in the upper part of the shell body, oil in the shell body is driven by the high-pressure air to enter the working area through the main oil duct and the secondary oil duct, an oil storage chamber with a downward opening is formed in the shell body, and the horizontal plane on which the highest point of the opening of the oil storage chamber is positioned is higher than that on which the highest point of the oil inlets of the main oil duct and the secondary oil duct is positioned. According to the oil tank upper shell for the hydraulic retarder, air which enters a working chamber from an oil tank can be reduced, so that the reliability of the hydraulic retarder is increased.

The invention provides a high-purity quartz production device. The high-purity quartz production device comprises a reacting furnace and a tower body, wherein the reacting furnace comprises a hearth, a heat insulation layer, a heat preserving layer and a metallic furnace cover which are arranged from inside to outside; the hearth is provided with at least one hearth air outlet which passes through the heat insulation layer, the heat preserving layer and a furnace seat; furnace top air inlets and furnace top air outlets are formed in the furnace top; the furnace top air outlets are not lower than the furnace top air inlets and are positioned on two sides of the furnace top; the hearth air outlet and the furnace top air outlet are correspondingly connected to a waste gas treating device; the tower body is arranged at the bottom part of the hearth and comprises a tower body bracket which is vertically arranged on the ground, a guide rail which is arranged on one side of the tower body bracket, and a base which is arranged on the guide rail; the base can be driven by a motor to move up and down along the guide rail; a product holder is arranged on the base and can move and rotate on the base through the motor. With the adoption of the production device, the external pollution and the safety treatment of waste gas in the production can be effectively avoided and achieved.

The invention relates to the field of coal-based methanol-to-olefin in the novel coal chemical industry, and discloses a separation system for low-energy-consumption methanol-to-olefin reaction gas, which is characterized in that all devices are connected through pipelines, a first section, a second section and a third section of a reaction gas compressor are connected through pipelines, a second-section outlet of the reaction gas compressor is connected with a water scrubber, and the side oil separation edge of the water scrubber is connected with a condensate pre-separation tower. The invention also discloses a separation process. According to the invention, heavy components are discharged from a tower kettle, dehydrated and separated, and then directly sent to a C4 device for treatment,so that invalid circulation of the heavy components in the system is avoided, the process load of the separation system is reduced under the same methanol-to-olefin reaction gas treatment capacity, the process energy consumption and the main equipment size are reduced, and the nitrogen consumption in the regeneration process of the dryer is reduced. A cooler and a group of oil-water separators are additionally arranged on a tower kettle heavy component line of the condensate pre-separation tower, so that the oil-water separation is more thorough, and the process energy consumption is lower.

The invention relates to an anti-corrosion inclusion bored concrete pile used for saline soil foundations and a construction method thereof. The bored concrete pile comprises a concrete pile body in structure, wherein the inside of the concrete pile body is provided with a reinforcement cage, a flexible, watertight and anticorrosive protection tube is covered on the bottom and periphery of the concrete pile body; and the watertight and anticorrosive protection tube is formed by hot-pressing or welding n layers of polyethylene geotextile bags and n-1 layers of geomembranes, and n is not less than 2. The construction method comprises the following steps: injecting cement mortar between pile holes and the watertight and anticorrosive protection tube, then injecting water in the watertight and anticorrosive protection tube to ensure that the watertight and anticorrosive protection tube expands to the pile hole wall, then injecting concrete paste in the watertight and anticorrosive protection tube, discharging water from the watertight and anticorrosive protection tube by using the concrete paste, and obtaining the bored concrete pile when concrete is set. The invention solves the anticorrosive problem of the concrete pile in saline soil areas, effectively reduces the production cost of the anti-corrosion bored concrete pile and satisfies the strength requirements of projects. The anti-corrosion inclusion bored concrete pile of the invention is applicable to the concrete pile construction with anticorrosive requirements and is especially used in saline soil foundations.

The invention relates to the field of fan devices, in particular to a fan capable of purifying air. The fan comprises a mounting seat, a blower motor, an impeller, a blower frame and a purifying device. The mounting seat is of a rectangular block structure. The mounting seat is further provided with a holding tank. The blower frame is fixedly mounted on the side of the mounting seat, and the lowerportion of the blower frame is further provided with an air outlet pipe. The blower motor is horizontally disposed on the mounting seat, and the output end of the blower motor is arranged towards theblower frame. The impeller includes a rotating shaft and a plurality of blades, the rotating shaft is fixedly connected with the output end of the blower motor, the blades are all disposed on the rotating shaft, and the impeller is disposed in the blower frame. The purifying device is provided with a spraying device and a plurality of purifying layers. Each purifying layer includes a mounting frame and a filter element, and each mounting frame is disposed in the air outlet pipe and provided with a clamping groove for clamping a filter element. All the filter elements are clamped in the corresponding clamping grooves, a spraying device is arranged in the blasting frame, and the air can be purified during air blowing.