42results about How to "Absorb" patented technology

The invention relates to the field of waste gas recovery in viscose fiber industry, in particular to a method for recycling hydrogen sulfide waste gas. The method mainly includes the steps: A, squeezing alkali fibers to generate waste alkali liquor, and subjecting the waste alkali liquor to membrane filtration to obtain secondary waste alkali liquor; B, utilizing the secondary waste alkali liquor as alkali absorption liquor, and jointly delivering the secondary waste alkali liquor and the hydrogen sulfide waste gas generated during viscose fiber production to an alkali spray tower; and C, utilizing drained alkali spray absorption liquor as digestion liquor for sulfate pulping, and delivering Na2S (sodium sulfide) obtained by reaction and the rest of NaOH (sodium hydroxide) liquor to a pulping process. The method has the advantages that the method is high in hydrogen sulfide waste gas absorption efficiency and large in treatment quantity in unit time, the problems of environmental pollution and potential production safety hazards due to hydrogen sulfide waste gas emission are solved, and the purposes of treating waste with waste and turning the waste into wealth are realized by the aid of the waste alkali liquor generated by squeezing the alkali fibers.

A gasket installed on the inner peripheral surface of an opening of a housing such as a cylinder head cover and sealing the gap between the housing and an insertion member such as a plug tube inserted in the opening. The gasket has good installability, so that, even if the inner diameter of the opening is not made to high precision, an outer periphery installation section of the gasket is prevented from being nipped in fitting of the gasket into the housing, or the gasket can be reliably fitted into the housing. To achieve the above, the outer diameter of the outer periphery installation section is set equal to or less than the inner diameter of the opening, and a tightening allowance setting means and a radial direction positioning means are provided on an outer peripheral section of the outer periphery installation section of the gasket. The tightening allowance setting means sets a tightening allowance of the gasket relative to the inner peripheral surface of the opening, and the radial direction positioning means performs radial positioning of the gasket relative to the inner peripheral surface of the opening. The tightening allowance setting means is inclined in the axially opposite direction to the direction of fitting of the gasket into the housing and has a lip shape whose outer diameter in a free state is set greater than the inner diameter of the opening.

The invention discloses a purifying agent for air purifiers and a method for preparing the purifying agent, and relates to the technical field of purifying agents. The purifying agent comprises, by weight, 55-65 parts of modified bamboo pulp fibers, 40-42 parts of nanometer bacterium removing agents, 35-40 parts of sustained-release particles, 30-35 parts of expanded vermiculite, 15-25 parts of modified attapulgite, 10-15 parts of mildew-proof and insect-proof agents and 5-7 parts of stabilizers. The purifying agent and the method have the advantages that raw materials for the purifying agent are safe and environmentally friendly, excellent effects of adsorbing toxic gas such as formaldehyde, toluene and dimethylbenzene in the air can be realized, effects of killing germs can be realized, and accordingly indoor environments can be effectively improved.

The invention relates to a light hydrocarbon separation method used in a methanol to olefin device. According to the method, through the optimization for conventional technological processes, the recovery rate of ethylene and propylene can be effectively improved, meanwhile, other absorbents are not introduced, and materials such as ethane, propane and three-carbon mixture in a system are used to absorb; multi-section absrptions, namely, main absorption and auxiliary absorption are arranged, a main absorption liquid is short in circulation in the system, and can effectively reduce the system operation load and reduce the device running cost, the auxiliary absorption circulating process is relatively longer than that of the main absorption, but the circulation amount is small, and the influence on the system load is relatively small. Through the adoption of multi-stage absorption, the separation of gases of methane, hydrogen, nitrogen, oxygen, carbon monoxide, ethane and the like from ethylene, propene and propane can be realized without copious cooling. The loss of ethylene and propene in fuel gas is small, the separating efficiency is high, and fuel gas products with less propane can be obtained, propylene and ethylene products satisfying polymer grade requirements can be manufactured, and, meanwhile, propane products with high purity can be obtained.

The invention discloses a silage pool capable of preventing bottom silage from mildewing and a construction method of the silage pool. The silage pool comprises a silage pool body and a drain pipe, wherein a sand layer, a plastic film and a hay layer are paved at the bottom of the silage pool body from bottom to top sequentially, a fluid collecting tank is arranged on one side of the bottom of the silage pool body and communicated with the drain pipe, and through holes overspreading the film surface are formed in the plastic film. Silage and a silage fluid are rapidly separated by the hay layer, the plastic film layer and the sand layer, the condition that bottom silage is soaked by the silage fluid in the ensiling process is avoided, mildewing of the silage at the bottom of the silage pool body is effectively prevented, besides, the upper part of the silage pool body is sealed, moreover, the only drain pipe communicated with the outside is also covered with the sand layer, the sand layer can better guarantee sealing of the silage pool body, the sealing effect is good, the structure is simple, long-stem storage of silage is guaranteed, mildewing of the silage is avoided, safety guarantee is provided for food for feeding domestic animals, and the silage pool has the characteristics of low cost and convenience in operation.

The invention discloses a feeding machine device for sucking furfural residues into a boiler under negative pressure. The feeding machine device comprises a hydrolyzed pan, a gas holder and a residueshed, wherein a residue discharge pipeline is fixedly connected to one side of the hydrolyzed pan, the top of the gas holder is fixedly connected with the residue discharge pipeline, a negative-pressure conveying pipeline is arranged in the residue shed, a suction nozzle is fixedly connected to the bottom of the negative-pressure conveying pipeline, a high-pressure fan is fixedly connected to oneend of the negative-pressure conveying pipeline, a material conveying pipe is fixedly connected to one side of the high-pressure fan, and a material and gas separator is fixedly connected to the bottom of the material conveying pipe. According to the feeding machine device, the gas holder, the residue discharge pipeline, the negative-pressure conveying pipeline, the suction nozzle, an air pipe, the high-pressure fan, the material conveying pipe, a suction fan, an air inlet pipe, an air outlet pipe, an elbow, an exhaust gas buffer bottle and a buffer solution are arranged, so that the problem of large potential safety hazards when employees enter the residue shed to view the production status or load and convey residues due to low visibility in the residue shed because the residue shed is sealed when the furfural residues with high water vapor are discharged to the residue shed is solved.

The invention relates to the technical field of teaching supplies, in particular to a dustproof protecting sleeve for chalk. The dustproof protecting sleeve comprises a chalk holder and a chalk head.Blackboard erasers are fixedly connected to the two sides of the upper end of the chalk holder. A battery groove is fixedly connected to the left side of the top of the chalk holder. Dust sucking openings are formed in the upper end and the lower end, located on the blackboard erasers, of the chalk holder correspondingly. A wind outlet is formed in the center position of the top of the chalk holder. A fan is fixedly connected to the lower end of the wind outlet and fixed to the inner side of the chalk holder. A filter screen is fixedly connected to the lower end of the fan and fixedly connected to the inner side of the chalk holder. Bolts are connected to the lower sides of the two ends of the chalk holder in a sliding manner. By means of fixing of the bolts, the chamber is formed, the sucking effect on generated chalk dust is achieved, the sucked chalk dust is stored on the inner side of the chalk head, when the chalk head is full of the dust, the bolts can be adjusted, the chalk headis disassembled, the collected chalk dust is treated, pollution to air from the chalk dust is reduced, and the body health of teachers and students is benefitted. The dustproof protecting sleeve hasgreat economic benefits and wide market value, and is worth being used and popularized.

The invention discloses a MOS transistor driving circuit for suppressing a driving voltage spike, includes push-pull circuit, an RCD absorbing circuit, a gate resistor and an MOS transistor, and is characterized in that: the RCD absorbing circuit comprises an absorbing resistor R, an absorbing resistor C and a TVS, the cathode of the TVS is connected with the grid of the MOS transistor, the anodeof the TVS is connected with one end of the absorption capacitor, the other end of the absorption capacitor is connected with the source of the MOS transistor, and the absorption resistor is connectedwith the TVS transistor in parallel. By adoption of the circuit provided by the invention, the gate-source positive driving spike voltage of the MOS transistor can be effectively suppressed by addingthe RCD circuit, and the turning-off reliability of the MOS transistor can be improved by adding a negative voltage circuit, and the MOS transistor driving circuit for suppressing the driving voltagespike has the advantages of simple structure, reliable performance and like.

The invention relates to the technical field of sanitary product production equipment, and discloses a novel elastic waistline cutting-off tool. The cutting-off tool comprises a support, supporting columns and a motor; the tops of the supporting columns are fixedly connected with a collecting frame, through holes are formed in the inner bottom wall of the collecting frame, a collecting tank is arranged below the collecting frame, and a rotating rod is arranged on one side of the collecting frame; one end of the rotating rod penetrates through and extends into the interior of the collecting frame, a crushing roller which sleeves the outer surface of the rotating rod is arranged inside the collecting frame, and the other end of the rotating rod is fixedly connected with a gear; and a toothedplate is meshed with the back surface of the gear, and a spring is fixedly connected to the top of the toothed plate. According to the novel elastic waistline cutting-off tool, the motor, the rotating rod, the gear, the toothed plate, the spring, a fixing rod and a cutter are arranged so that a rubber string can be cut off, and cut-off rubber string waste materials can be crushed through the motor, the rotating rod and the crushing roller, so that the later processing difficulty is reduced, and the cut-off recovery rate of the elastic waistline can be higher.

The invention belongs to the technical field of motor control, and particularly relates to an integrated power conversion circuit. The invention aims to provide an eight-output integrated secondary power conversion circuit. The integrated power conversion circuit has a closed-loop adjustment function, and a switching integrated secondary power conversion circuit is adopted to supply power to multiple power sources required by a power driving circuit. The integrated power conversion circuit comprises an input filter circuit, a PWM chopper circuit, a regenerative energy absorption circuit, a voltage feedback circuit, a transformer circuit, and a rectifier output circuit, wherein the input filter circuit, the regenerative energy absorption circuit, the transformer circuit and the rectifier output circuit are connected in sequence, and the transformer circuit, the voltage feedback circuit and the PWM chopper circuit are connected in sequence to form a closed loop.

The invention relates to the technical field of polypyrrole wave-absorbing materials, and discloses a ferrite-graphene modified polycarboxyl pyrrole wave-absorbing material and a preparation method thereof. The formula of the ferrite-graphene modified polycarboxyl pyrrole wave-absorbing material comprises the following experimental raw materials: ferric trichloride hexahydrate, anhydrous aluminumsulfate, cobalt chloride hexahydrate, oxalic acid, pyrrole, a synergistic catalyst, graphene and the like. CoAl ferrite Co0.65-0.85Al0.15-0.35Fe2O4 is added to modify polypyrrole, and Fe and Al have excellent electrical conductivity, so the conductivity of the wave-absorbing material is improved; when the wave-absorbing material senses an external magnetic field, a mass induced current can be generated, and an induction magnetic field opposite to the external magnetic field is generated, so the absorbing and shielding effects on electromagnetic waves are achieved; and Co has the magnetic advantages of high resistivity and low high-frequency loss, so the eddy current loss of the magnetic loss in the high frequency band of ferrite is effectively improved when the external magnetic field andthe metal Co compound form interactive resonance.

The invention relates to the technical field of noise reduction of an air conditioner, and particularly discloses a noise elimination and sound insulation device for an outdoor unit of an air conditioner. The noise elimination and sound insulation device for the outdoor unit of the air conditioner comprises a cover body covering the outdoor unit of the air conditioner, wherein an air inlet and anair outlet are arranged on the cover body, the air inlet is far away from the air outlet, and the air inlet is lower than the air outlet; a first space and a second space which are used for separatingthe space around the outdoor unit of the air conditioner are arranged in the cover body, the air inlet end of the first space communicates with the air inlet of the cover body, and the air outlet endof the first space communicates with the air inlet end of an air inlet grille of the outdoor unit of the air conditioner; the air inlet end of the second space communicates with the air outlet end ofa cooling fan of the outdoor unit of the air conditioner, and the air outlet end of the second space communicates with the air outlet of the cover body; and an air inlet silencing assembly is arranged in the first space, and an air outlet silencing assembly is arranged in the second space. The scheme provided by the invention is used for solving the problems that in the prior art, the quality ofa sound environment where people live is reduced due to noise pollution caused by the operation of an outdoor unit of an air conditioner, and the normal sleep and rest of the people are seriously affected.

The invention relates to a production process of a diamond saw blade. The process specifically comprises the following steps: A, proportioning: preparing by weight, 15-20 parts of diamond powder, 20-25 parts of copper powder, 30-40 parts of iron powder, 20-25 parts of manganese powder, 4-5 parts of nickel powder, 20-30 parts of glass fiber powder, 10-20 parts of ceramic powder, 3-5 parts of ferricoxide powder, 6-8 parts of zinc oxide powder and 2-4 parts of pore forming powder; B, mixing and cold pressing: mixing the raw materials, stirring and mixing the ingredients through a stirring bladeof a special cold press at the stirring speed of 400 r / min-480 r / min, pressing the ingredients on the outer edge of a substrate to form a workpiece a at the pressing pressure of 200 KN-280 KN; C, sintering: placing the ingredients into a sintering furnace, adopting the method of heating after pressurization and pressure releasing after cooling, performing sintering at the temperature of 830-840 DEG C and pressure of 6 GPa-8 GPa, and obtaining a workpiece b; D, polishing and painting; and E, sharpening: sharpening the prepared workpiece through a saw blade so as to form multiple cutting groovesin the two side surfaces of the diamond blade. The production process has the advantages of reducing the cost, improving the structural strength, reducing vibration and dissipating heat.

The invention discloses a composite asphalt stress absorption membrane and a preparation method thereof, belongs to the field of road construction, and particularly relates to an anti-cracking waterproof sealing membrane applicable to asphalt pavement. The composite asphalt stress absorption membrane comprises a wear-resistant isolation layer, an upper composite layer, a base, a lower composite layer and a protection layer arranged sequentially from top to bottom; the wear-resistant isolation layer consists of quartz sand of 20-40 meshes; the upper composite layer and the lower composite layer both consist of high molecular polymer modified asphalt; a high-density polyethylene (PE) membrane is adopted for the protection layer; the base is high-modulus base cloth; the high-modulus base cloth is polyester filament geotextile or polyester glass fiber cloth. The preparation method comprises the following steps: 1) preparing high molecular polymer modified asphalt of the upper composite layer and lower composite layer; 2) combining the upper composite layer, the lower composite layer and the base; 3) pasting the protection layer and the wear-resistant isolation layer; and 4) cooling, cutting and rolling.

The invention relates to the field of spinning equipment, in particular to a dust absorption device for a spinning workshop. The device can simultaneously absorb dust or suspended solids on the ground and in the air and relieve the influence on workers. The dust absorption device structurally comprises a base, rolling wheels are positioned at the bottom of the base, a collecting box is arranged at the middle of the upper portion of the base, a first absorption pipe and a second absorption pipe are arranged on the two sides of the collecting box respectively, a blower is positioned above the collecting box, an air inlet of the blower is communicated with the collecting box, a filter screen is arranged at the position of the air inlet, and an air outlet of the blower is arranged above the blower. The dust absorption device for the spinning workshop is simple to operate, convenient to use and suitable for various occasions.

The invention belongs to the technical field of air compressor systems, and particularly discloses an energy saving system of an air compressor. The energy saving system comprises an air compressor body, a control system, a fixed frame, an air storage tank, a sound absorption cotton layer and an elastic cotton layer. A bearing block is fixed to the bottom of the air compressor body and is in sliding connection with the inner wall of the fixed frame. A limiting sliding groove is formed in the inner wall of the fixed frame. Sliding blocks are fixed to the two sides of the bearing block and are in sliding connection with the limiting sliding groove. A bottom plate is fixed to the bottom of the fixed frame. A moving groove is formed in the bottom plate. Symmetric sealing doors are arranged inthe moving groove in a sliding manner, and the sealing doors are attached to the front face of the air compressor. An air outlet of the air compressor communicates with the air storage tank through anair guide pipe. A control cabinet is arranged at the top of the air compressor, and a PID controller, a frequency conversion driver, a controller, an alarm and a timer are arranged in the control cabinet.

The invention relates to the technical field of pollution abatement, in particular to a composition and application of the composition to eliminating air pollutants. The composition which comprises oyster mushrooms, mulberries, rhododendron leaves, aquatic plant leaves and willow leaves and extractive and the application of the composition are provided. A product for eliminating the air pollutants and a method for eliminating the air pollutants are provided. Experiments indicate that the elimination rate of the product for eliminating the air pollutants on nicotine can reach 76% or above, the elimination rate of the product for eliminating the air pollutants on hydrocyanic acid also reaches 78%, and meanwhile the elimination rate of the product for eliminating the air pollutants on PM2.5 particles can reach 25% or above.

The invention provides a display panel. The display panel comprises a substrate; the thin film transistor is arranged on one side of the substrate, the thin film transistor comprises an active layer, and the active layer comprises a channel; the shading conductive layer is arranged in the thickness direction of the display panel, the shading conductive layer and a channel of the active layer are overlapped, and the shading conductive layer comprises a first light absorption layer; and the first conductive layer is positioned on one side, far away from the substrate, of the first light absorption layer.

The invention discloses a hayshed suitable for a karst region. The hayshed comprises a hayshed body, a shed top covering the top end of the hayshed body, and a shed bottom. The shed bottom is sequentially provided with a fine gravel layer, a plant ash layer and kraft paper from bottom to top. Fine through holes are laid in the whole surface of the kraft paper. By arranging a damp-proof structure formed by the fine gravel layer, the plant ash layer and the kraft paper on the shed bottom, hay affected with damp in the hayshed can be subjected to water absorption, the damp-proof effect is greatly improved, mould discoloration and deterioration of the hay are avoided, the use life of the hay is prolonged, the use safety of the hay is improved, and the situation that growth and meat quality are affected by ill falling and nutritional ingredient loss caused when cattle and sheep eat the hay is avoided; compared with an existing hayshed, the use life of the hayshed of the structure can reach 6-8 months in the rainy season, the damp-proof effect is obviously superior to that of the existing hayshed, and the hayshed further has the advantages of being simple in structure, low in cost and convenient to manufacture, use and maintain.

The invention discloses a water-soluble matrix traditional Chinese medicine ointment preparation for treating a diabetic foot, and particularly relates to a water-soluble matrix ointment composed of 6 traditional Chinese medicines, namely roots of redroot gromwell, cinnabar, dragon's blood, membranous milkvetch roots, colla corii asini and borneol, and a specific matrix auxiliary material. In addition, the invention further discloses a preparation technology method and application of the preparation. The external-use traditional Chinese medicine compound ointment preparation provided by the invention can control the progress of the diabetic foot and promote the growth of granulation on a wound surface to enable the gangrene to heal. The ointment is easy to clean and remove, has advantages especially for treatment to an erosion wound surface, plays an absorption effect on percolate and secretion of the diabetic foot, has favorable adhesiveness and coating properties, is uniform in dispersing of all raw materials, stable in quality, favorable in property, appropriate in consistency and suitable for clinical application, can be used for treating the diabetic foot for improving a clinical medication situation, widens an application range of a gromwell and cinnabar ointment, and improves the curative effect.

The invention provides wound surface nursing ointment. The ointment comprises the following components in parts by weight: 40-60 parts of perilla leaf extract, 20-50 parts of folium artemisiae argyi extract, 10-30 parts of aloe extract, 10-40 parts of azalea root powder, 10-30 parts of epidermal growth factor, 20-60 parts of white vaseline, 30-60 parts of carboxymethyl cellulose, 20-40 parts of polyethylene glycol, 5-15 parts of humectant, 10-35 parts of penetrant and 80-150 parts of purified water. The invention further provides a preparation method of the wound surface nursing ointment. Thewound surface nursing ointment has the following beneficial effects: 1, the wound surface nursing ointment is low in irritation, high in safety and good in curative effect, scars cannot be formed on the surface of skin after the wound surface nursing ointment is cured, and the beauty of the skin is not influenced; 2, a preparation method of the wound surface nursing ointment is simple in preparation process, wide in raw material sources, low in preparation cost and wide in market prospect.

The invention discloses an electrode boiler closed type circulating water system with a voltage stabilizing function. The electrode boiler closed type circulating water system comprises an electrode boiler, a plate type heat exchanger, a circulating pump, a pressure transmitter which is connected to the upper side surface of the electrode boiler through a gas path pipeline, a control system, a liquid level meter, a gas storage tank which is connected to the upper side surface of the electrode boiler through a gas inlet pipeline, a gas inlet control valve, a gas outlet control valve, a water supplementing pipeline which is connected to a lower circulating water pipeline, a pure water tank which is connected to the water supplanting pipeline for supplying water, a water supplementing pump which is mounted on the water supplementing pipeline and is connected to the control system through a circuit cable, and a water discharge valve mounted on the bottom of the electrode boiler. The electrode boiler closed type circulating water system with the voltage stabilizing function disclosed by the invention does not need to additionally equip with a voltage stabilizing device, has a self-voltage-stabilizing function, is stable in pressure, is simple in structure, is stable in operation, is low in investment cost, and can be widely applied to the field of clean energy heating and power plant flexible peak regulation.

The invention discloses a silage pool capable of preventing bottom silage from mildewing and a construction method of the silage pool. The silage pool comprises a silage pool body and a drain pipe, wherein a sand layer, a plastic film and a hay layer are paved at the bottom of the silage pool body from bottom to top sequentially, a fluid collecting tank is arranged on one side of the bottom of the silage pool body and communicated with the drain pipe, and through holes overspreading the film surface are formed in the plastic film. Silage and a silage fluid are rapidly separated by the hay layer, the plastic film layer and the sand layer, the condition that bottom silage is soaked by the silage fluid in the ensiling process is avoided, mildewing of the silage at the bottom of the silage pool body is effectively prevented, besides, the upper part of the silage pool body is sealed, moreover, the only drain pipe communicated with the outside is also covered with the sand layer, the sand layer can better guarantee sealing of the silage pool body, the sealing effect is good, the structure is simple, long-stem storage of silage is guaranteed, mildewing of the silage is avoided, safety guarantee is provided for food for feeding domestic animals, and the silage pool has the characteristics of low cost and convenience in operation.

The present invention discloses a diesel engine hood. The diesel engine hood comprises an engine hood body, the top part of the engine hood body is provided with a top chute, and cooling metal sheetsformed integrally with the engine hood body are arranged inside the top chute and are spaced equally. Support projections used for installing a dust shield are disposed inside left and right part of the top chute. Venting holes are formed in the middle part of the dust shield. A bottom chute is disposed under the engine hood body and is internally provided with an acoustic panel, and noise reducing bosses are formed on the surface of the acoustic panel. Heat of the engine hood body is absorbed by the cooling metal sheets and dissipates from the venting holes formed in the dust shield, facilitating cooling of an engine body. The acoustic panel is convenient to assemble and disassemble. Noise produced by the engine body is transferred to and thus absorbed by the noise reducing bosses on thesurface of the acoustic panel.

The invention discloses a degreasing method for a plate degreasing system for a cold rolling mill. It includes the following steps: S1, start the electric push rod, push the cold air pipe down, and the oil-absorbing sponge is attached to the surface of the plate; S2, high-pressure gas delivery, send the high-pressure gas into the vortex tube through the high-pressure air intake pipe, the hot gas enters the heat pipe, and the cold air enters the cold air. Tube; S3, temperature difference manufacturing, the temperature of the lower end of the oil-absorbing sponge rises, the temperature of the upper end of the oil-absorbing sponge drops, and the temperature difference between the upper and lower parts of the oil-absorbing sponge; S4, the oil-water absorption of the plate, the oil-water at the lower end of the oil-absorbing sponge continues to move to the upper end of the oil-absorbing sponge , so that the lower end of the oil-absorbing sponge can continuously absorb the oil stains on the surface of the board. The invention can efficiently remove the residual rolling liquid on the surface of the plate by setting the oil-absorbing sponge and the temperature difference manufacturing mechanism, and avoids the surface of the plate from being scratched by impurities such as iron filings and copper filings during friction, and improves the yield of the cold rolling mill. , which can better meet the actual production requirements.

The invention belongs to the technical field of plastering, and particularly relates to intelligent clamping and laying equipment for practical training of students. The intelligent clamping and laying equipment comprises a plastering spraying execution end, a six-joint mechanical arm, a material conveying pipe, a material barrel and a travelling platform, wherein a second motor works to drive a sixth gear to rotate, the sixth gear rotates to drive a seventh gear to rotate, the seventh gear rotates to drive an installing rod to rotate, the installing rod drives a rotating shell to rotate, meanwhile, the installing rod rotates to drive a fixed rod installed on the installing rod to rotate, then a second flow stabilizing shell on the installing rod is driven to rotate, through rotation of the rotating shell, bubbles in coating entering the rotating shell can be stirred, distribution of the bubbles is reduced, and meanwhile, the bubbles in the coating are absorbed through a second flow stabilizing shell installed on the installing rod. According to the intelligent clamping and laying equipment, the coating enters the rotating shell through a notch and does not enter the rotating shell from the upper side, and the design can ensure that the coating entering the rotating shell from the upper side does not press the bubbles in the coating or press the bubbles into the rotating shell under the action of gravity.

The invention relates to the technical field of fabric manufacturing, and discloses a durable antibacterial high-breathability polyester warp-knitted fabric which comprises a fabric outer layer, the fabric outer layer comprises cation yarns and polyester yarns, an upper elastic adhesion layer is arranged on the lower surface of the fabric outer layer, a breathable layer is arranged on the lower surface of the upper elastic adhesion layer, breathable holes are formed in the breathable layer, and the upper elastic adhesion layer is made of polyester fibers. An outer water absorption layer is arranged below the breathable layer, an antibacterial layer is arranged on the lower surface of the outer water absorption layer, an inner water absorption layer is arranged on the lower surface of the antibacterial layer, a lower elastic adhesion layer is arranged on the lower surface of the inner water absorption layer, and a fabric inner layer is arranged on the lower surface of the lower elastic adhesion layer. According to the durable antibacterial high-breathability polyester warp-knitted fabric and the manufacturing process thereof, the problems that an existing warp-knitted fabric is poor in breathability and moisture penetrability, antibacterial effect and dimensional stability can be solved.

The invention discloses a negative temperature and radiation-proof boron-containing barium-rich sulfoaluminate cement clinker. The cement clinker is composed of the following minerals in weight percentage: barium calcium sulfoaluminate 48-62%, dicalcium ferrite 5-12%, dicalcium silicate 20-26%, barium aluminate 8-15% and boric acid Calcium 3-8%. The cement clinker of the present invention has high strength, good durability, high compactness, low dry shrinkage rate, good radiation protection performance and excellent frost resistance performance, and is suitable for use in high and cold regions such as the two poles of the world and northern China, and in nuclear power projects. Freezing and thawing may damage the construction of structures, such as containment, shielded powerhouses, auxiliary powerhouses, etc.

The invention discloses pipe joint sealing equipment. The pipe joint sealing equipment comprises a small inflation pump and airbags; the outer diameter of an inner fixing ring is smaller than the inner diameter of a pipe; the inner diameter of an outer fixing ring is larger than the outer diameter of the pipe; the airbags are annular; two airbags are arranged; mighty glue layers are arranged on the outer walls of the airbags, and are bonded between the inner fixing ring and the outer fixing ring; an air hole is formed in the outer fixing ring or the inner fixing ring; and a plug is arranged in the air hole. The pipe joint sealing equipment is convenient to operate, low in cost and high in efficiency.