134results about How to "Improve anti-blocking effect" patented technology

The invention relates to a row cleaner for agricultural no-tillage planting machinery, especially to a biomimetic claw type floating stubble and grass clearing mechanism. The invention is intended to resolve the problems of effect on normal seeding operation and seeding quality or the like because of the winding, accumulation and clog on a colter by a mass of stalks and weeds coated on the protective cropland surface. The floating row cleaner mainly comprises a pair of finger-shaped grass-poking wheels connected with the ground, an installation rack for convergent arms, a cam for regulating depth and a lower limiting arm, wherein the finger-shaped grass-poking wheels are key parts. The pair of finger-shaped grass-poking wheels forming splay with each other is mounted on installation rack for convergent arms, wherein the centers of the pair of finger-shaped grass-poking wheels of the front ends converge at a point and are not interfered with each other. The middle of each finger-shaped grass-poking wheel is provided with a round disk whose circumference is distributed with a plurality of finger-shaped teeth uniformly. The plurality of teeth are radially distributed, line parts of the finger-shaped teeth form a certain angle with the radial line in radial direction of the round disk, and extend to the outer circle from arc.

The invention relates to a kitchen sink, in particular to a self-cleaning type water-saving anti-blocking sink. The sink comprises a sink body and a water discharging pipe; a water distributor is serially connected between the sink body and the water discharging pipe; the water distributor comprises a cylindrical shell, a water seal mounted at the upper part of the cylindrical shell, a conical filter net mounted in the center of the lower part of the conical shell, and a power apparatus for driving the conical filter net to rotate; the water discharging pipe is arranged in the bottom center of the cylindrical shell; a scraping plate in contact with the outer wall of the conical filter net is arranged on the inner wall of the cylindrical shell; a residue discharging hole is formed in the upper end part of the scraping plate; the power apparatus comprises a centrifugal pump; a rotary shaft of the centrifugal pump penetrates through the water discharging pipe and is fixed with a rotary shaft of the conical filter net; a tangential hole of the centrifugal pump serves as a water inlet; an axial hole of the centrifugal pump serves as a water outlet and is connected with a tap; a hairbrush in contact with the conical filter net is arranged on the inner side of the conical filter net; and the hairbrush is fixed at the bottom of the cylindrical shell. The sink adopting the technical scheme is good in anti-blocking effect, can be automatically cleaned, and has a water-saving effect.

The invention relates to agricultural irrigation devices, in particular to a water-saving-valve-controlled drip irrigation tank. The water-saving-valve-controlled drip irrigation tank is provided with a closed tank body, a ventilation overflow stop valve is arranged at the top of the tank body, and a water inlet and a water outlet are formed in the bottom of the tank body. The water-saving-valve-controlled drip irrigation tank is characterized in that a water inlet one-way valve is arranged on the inner side of the water inlet in a butt joint mode, an in-out linkage water valve is arranged at the bottom of the tank body and provided with a valve body, a piston cavity provided with a piston and a compression spring is arranged in the valve body, and a water inlet pipe is installed at the end, close to the piston, of the valve body to be communicated with the piston cavity. A water supply opening is formed in the valve body to be communicated with the water inlet in the bottom of the tank body, and a transition water opening is formed to be communicated with the water outlet in the bottom of the tank body. A water drip distribution device is further arranged on the valve body and communicated with the piston cavity. The water-saving-valve-controlled drip irrigation tank overcomes the defects that blocking occurs easily when drip irrigation is conducted through a water dropper, water yield cannot be adjusted, the water dropper is complex in structure, high in manufacturing cost and short in service life, and a system is large in power consumption. Meanwhile, the water-saving-valve-controlled drip irrigation tank is more stable and more reliable in work, low in failure rate and wide in agricultural crop irrigation application range.

A dust collecting system includes a suction means, a dustbin (10), a suction tube (20) and a suction nozzle (30). They are connected in turn. There are water inlets (23) on the suction tube (20). The dust collecting system also includes a water supply device, which supplies water for the suction tube (20) through said water inlets (23). By supplying water to the suction tube, inner wall of the suction tube is moistened by said dust collecting system, besides dust and waste carried by airflow are further moistened, therefore friction between airflow with dust and the inner wall of the suction tube can be decreased, and stick and clog can be avoided or reduced. A road sweeping vehicle including said dust collecting system is also provided.

The invention relates to an anti-blocking controllable negative pressure quick solidifying method for flow state dredging silt, which belongs to the technical field of water conservancy and navigation projects. The method comprises the following steps: manufacturing an anti-blocking drain board, preparing an anti-block controllable negative pressure device, inserting the anti-blocking drain board, connecting drainage networks, covering for sealing, and draining water with vacuum and negative pressure. As the technical scheme reasonably ensures the specification and the structure of a filter membrane, and allows a drainage system to be stabilized in optimal vacuum and negative pressure for working with the aid of the anti-block controllable negative pressure device, so as to have the anti-blocking effect, and then guarantee a flow state dredging silt foundation to drain water and reinforce quickly.

The present invention is improved filter plate for solid-liquid separating drier. The improved filter plate is hydrophilic microporous plastic plate with average pore size of 0.2-1.5 microns, and forms the sucking filter element walls. It is superior to available ceramic plate, and has pore opening rate of about 60 %, 20-30 % higher production capacity, high toughness, high impact resistance, and acid and base resistance.

The invention discloses a recycling processing device for electroplating wastewater. The recycling processing device comprises a processing barrel, a water inlet pipe communicates with the top of theleft side of the processing barrel, and a sludge hopper is welded to the top of the processing barrel. According to the recycling processing device for the electroplating wastewater, waste gas is filtered through an air filtering box, the situation that unpleasant odor generated by the waste gas influences a user is avoided, the user drive a scrapping plate through a transmission mechanism to moverightwards, impurities at the top of a filtering plate is removed, meanwhile a sealing plate is rightwards pushed to be opened by the scrapping plate, thus waste slag conveniently falls into a collecting box, after the scraping plate moves leftwards and restores, restoring of the sealing plate is conducted through a restoring mechanism to seal the processing barrel, and the problems that a filtering plate is prone to being blocked and the unpleasant odor is large after blocking in an existing recycling processing device for the electroplating wastewater after a long time using are solved. Therecycling processing device for the electroplating wastewater has the advantages that the filtering plate is not prone to being blocked, and the gas processing effect is good, and the anti-blocking effect and the unpleasant odor processing effect are improved.

The invention relates to an air-leaking-reducing anti-ash-blocking system and a method for a rotary air preheater. The air-leaking-reducing anti-ash-blocking system comprises a flue gas recirculationbranch warehouse, wherein one side of the flue gas recirculation branch cabin is adjacent to a flue gas cabin; the other side of the flue gas recirculation branch cabin is adjacent to a primary air cabin or a secondary air cabin; and flue gas in the flue gas recirculation branch cabin is used for heating a heat storage element, which is rotated out from the primary air cabin or the secondary air cabin and is rotated into the flue gas cabin. The method provided by the invention comprises the step of utilizing the flue gas in a flue gas inlet air channel of the rotary air preheater for heating the heat storage element, which is rotated out from the primary air cabin or the secondary air cabin and is rotated into the flue gas cabin. The technical scheme provided by the invention can replace an air heater and a hot air recirculation device, and is simpler and more practical compared with the air heater and the hot air recirculation device at the same time, and the air preheater has betteranti-corrosion and anti-blocking effects; and meanwhile, the carrying air leakage and one-side air leakage of the air preheater are reduced, so that an air leakage coefficient of the air preheater isgreatly reduced.

The invention discloses an anti-blocking device for a kitchen and bath pipeline, and belongs to the field of anti-blocking devices of drainage pipes. The anti-blocking device comprises a separation barrel mounted on a vertical pipeline, the vertical pipeline is communicated with an upper pipeline and a lower pipeline, a rotating shaft is arranged at the inner center of the separation barrel, rotating blades are uniformly arranged on the rotating shaft, the sides and tail ends of the rotating blades contact with the inner wall of the separation barrel, cutting blades are mounted on the rotating blades, the upper pipeline faces one side of the tail end of each rotating blade below the upper pipeline, a plurality of through holes are uniformly formed in the wall of the separation barrel embedded into the lower pipeline, one side of the lower portion of the separation barrel opposite to the lower pipeline is sequentially communicated with a solid through pipe, a solid collection tank and a water flow branch pipe, the other end of the water flow branch pipe is communicated with the lower pipeline, a filter screen is arranged at the inner bottom of the solid collection tank, and a gate plate is arranged on the outer side surface of the solid collection tank. The anti-blocking device is simple and ingenious in structure design, solid sundries and water are effectively separated by the aid of simple pure mechanical principles, and good anti-blocking effects of the pipelines can be achieved.

The invention discloses agricultural compound fertilizer processing machine production equipment which comprises a fixed bottom frame, a base and a conveying barrel. The base is arranged at the lowerend of the fixed bottom frame, the conveying barrel is arranged on the upper end of the fixed bottom frame, a second rotating shaft is arranged in the conveying barrel, a screw conveying mechanism isarranged on the second rotating shaft, and a mixing stirring box is arranged on the left upper end of the conveying barrel. The agricultural compound fertilizer processing machine production equipmenthas simple and reasonable structure design. The agricultural compound fertilizer processing machine production equipment is used for compound fertilizer processing and mixing, when in use, the agricultural compound fertilizer processing machine production equipment is controlled to work by a control box. A temperature measurement device monitors the internal temperature of the mixing stirring boxin real time to avoid influence on material mixing caused by overheating. After mixing and stirring are completed, materials enter into the conveying barrel. Under the driving of a conveying motor, the screw conveying mechanism discharges the materials from a discharge opening, and a cooling device functions to cool the materials. A fan and a gas purifying device can purify exhaust gas produced during the processing of a compound fertilizer, and can play an environmentally friendly role.

The invention discloses an anti-blocking baffling type percolation dam which comprises a retaining dam body, a downstream percolation area, a partition wall, an upstream percolation area and a side wall. A water body in a river channel flows into the downstream percolation area through a water inlet inclined pipe arranged on the retaining dam body, then passes through a water passing hole in the bottom of the partition wall to flow into the upstream percolation area and flows out of the top of the upstream percolation area. The water inlet inclined pipe is adopted for water inputting, the upstream and downstream baffling mode is adopted in the percolation areas, emerging and sinking multi-element vegetable layers are adopted, and the dam has the advantages of being good in anti-blocking effect, high in filtering efficiency and good in purification and landscape effect.

The invention discloses an anti-blocking valve. The anti-blocking valve comprises a valve body, a valve core, a valve rod, a handle, an upper cavity, a lower cavity, a water inlet, a water outlet, a first filter net, a second filter net, a side pipe and a small valve; the water inlet and the water outlet are respectively formed in the two ends of the valve body; the first filter net is arranged at a water inlet end; the second filter net is arranged at a water outlet end; the valve core is arranged in the valve body; the upper end of the valve core is connected with the valve rod; the upper end of the valve rod is connected with the handle; the valve rod penetrates through the upper end of the valve body from the upper end; the upper cavity and the lower cavity are respectively formed in the centre of the valve body; the lower cavity is communicated with the water inlet; the side wall of the water inlet end is connected with one end of the side pipe; the other end of the side pipe is connected with the upper cavity in the centre of the valve body; the small valve is arranged on the side pipe; the valve core is matched and sealed with each of the lower end of the upper cavity and the upper end of the lower cavity. The anti-blocking valve is simple in structure, convenient to use, easy to operate and good in anti-blocking effect; emergency conveying is realized.

The invention relates to a water conservancy project anti-clogging reservoir, and discloses a reservoir device which is used for water conservancy construction to prevent clogging of a drainage port and effectively improve the anti-clogging effect of the reservoir. The water conservancy project anti-clogging reservoir is characterized in that a main shell is arranged on a bottom board, and a pit is formed in the middle of the bottom board; a through hole is formed in the middle of the pit, and one end of a drainage pipe is arranged on the bottom board, and is opposite to the through hole in the pit in the middle of the bottom board; a valve is arranged on the drainage pipe, and a fixing sleeve is arranged in the main shell; one end of the fixing sleeve is connected with the bottom board, and one end of the fixing sleeve is communicated with the drainage pipe through the through hole in the pit in the middle of the bottom board; a plurality of water inlets are formed in the fixing sleeve, and one end of a rotating pipe is arranged in the other end of the fixing sleeve through a fixing bearing; the middle of a rotating table is arranged on the rotating pipe, and the height of the rotating table is gradually reduced from the center to the edge; a plurality of diversion strips are equiangularly arranged outside the rotating table, and each diversion strip is of an arc-shaped structure; a plurality of agitating glue sticks are uniformly arranged inside the rotating table and are distributed in an annular shape.

The invention discloses decoction and stirring equipment for a traditional Chinese medicine preparation for treating hepatic fibrosis. The decoction and stirring equipment comprises a decoction tank body with an opening in the top end, a decoction raw material loading mechanism is arranged at the bottom end of a top cover, the decoction raw material loading mechanism comprises a positioning ring frame which is arranged at the bottom of the top cover and is concentric with the top cover, a rotary disc is embedded in the positioning ring frame, the bottom end of the rotary disc is connected witha decoction mesh cage through a connecting ring frame, and a rotary disc driving mechanism is arranged on the top cover; a multi-shaft mixing and stirring mechanism is arranged in the decoction meshcage; an up-and-down material turning mechanism is arranged in the decoction mesh cage; a decoction liquid circulating mechanism is arranged on the decoction tank body; and a liquid discharging pipe is arranged at the bottom of the decoction tank body. The decoction and stirring equipment has the advantage of sufficient decoction and stirring, so that effective components generated by decoction can completely seep out, and the decoction effect is effectively improved.

The invention relates to the mechanical field of agriculture, and discloses a tillage-free anti-blocking device with obliquely arranged driving grass flipping wheels. The tillage-free anti-blocking device comprises a machine frame, a gearbox mounted on the machine frame, and tillage-free anti-blocking units, wherein each tillage-free anti-blocking unit comprises a grass flipping frame, a furrow opener, a grass flip driving unit and two grass flipping wheels, and the grass flipping frames are mounted on the machine frame; the furrow openers are arranged on the machine frame or the grass flipping frames; the two grass flipping wheels are respectively and rotatably mounted on each grass flipping frame and respectively positioned on both sides in front of each furrow opener; the lateral sides of the two grass flipping wheels and the corresponding furrow opener have vertical included angles, the lower ends of the two grass flipping wheels are close to each other, and the upper ends of the two grass flipping wheels keep away from each other and form a V shape of which the opening faces upwards; each grass flip driving unit is mounted on the corresponding grass flipping frame, the input end of each grass flip driving unit is connected with the gearbox, and the output end of each grass flip driving unit is connected with the two grass flipping wheels so as to drive the two grass flipping wheels to rotate. Due to the adoption of the obliquely arranged grass flipping wheels, straw self-planting belts can be taken to both sides of a planting belt; power driving is adopted, the rotating speed of the grass flipping wheels is high, the straw processing capability is high, and the anti-blocking effect is good.

The invention relates to a traditional Chinese medicine cleaning machine which comprises a cleaning barrel and further comprises a turbine, wherein the cleaning barrel is connected to a drive device; the drive device comprises a drive shaft; the two ends of the drive shaft penetrate through and extend out of the cleaning barrel; the drive shaft is connected to a drive motor through a speed reducer; the drive motor is provided with an electromagnetic brake; a universal coupler is arranged between the speed reducer and the drive shaft; a water conveying tube is arranged in the drive shaft; the water conveying tube extends into the cleaning barrel; water spray devices are arranged on the drive shaft; each water spray device comprises a water spray tube; a plurality of water spray holes are formed in the side wall of each water spray tube; a connecting tube communicating with the water conveying tube is fixedly arranged on the drive shaft; the connecting tube is provided with reciprocating spiral slots; slide blocks are arranged in the water spray tube; the slide blocks are mounted in the reciprocating spiral slots in a sliding manner; the turbine is arranged in the connecting tube; the turbine is fixedly arranged on the water spray tube; the barrel wall of the cleaning barrel is provided with water filter holes; and elastic baffle plates are arranged over the water filter holes. Stirring effect on traditional Chinese medicines on different positions in the cleaning barrel is good, water adding is uniform, cleaning efficiency is high and cleaning quality is good. The traditional Chinese medicine cleaning machine is convenient to operate.

The invention relates to a reversed filtration block prepared from coal slag or mineral slag and a preparation method thereof. The reversed filtration block is prepared from, by weight, 100 parts of cement and 700 to 750 parts of coal slag or mineral slag. The preparation method for the reversed filtration block comprises the following steps: A, crushing 700 to 750 parts of the coal slag or mineral slag into slag blocks with a size of 10 to 100 mm, wherein the content of slag blocks with sizes of less than 10 mm is 10 to 20%; B, adding water into the two raw materials uniformly mixed in the step A and carrying out stirring so as to obtain a mixture; C, pouring the mixture prepared in the step B into a die and carrying out pressing with a brick press at a pressure of 0.5 to 1.5 Mpa so as to prepare a square reversed filtration block with insertion holes; and C, demolding the molded reversed filtration block, standing the molded reversed filtration block at normal temperature for 3 to 4 h and sprinkling water to cover the block for maintenance for 28 to 35 d after eventual solidification of cement, wherein the prepared reversed filtration block has compressive strength of 0.25 to 0.5 Mpa. The invention has the following advantages: the preparation method is simple, economic and practical, utilizes the waste, realizes low carbon and environmental protection and can improve construction progress and engineering.

The invention relates to an anti-blocking hopper of a ship unloader. The hopper mainly comprises a hopper body, a connecting base, an excitation source, a spherical vibrating plate, a hinged shaft, a hinged shaft base, a buffer sleeve and an anti-overflow baffle plate. At a slope section where the hopper is easy to block, the spherical vibrating plate is arranged in the hopper body and is flexibly connected with the hopper body; the anti-overflow baffle plate is arranged on the upper part of a seam between the spherical vibrating plate and the hopper body; the hinged shaft is arranged on the hopper body through the hinged shaft base, and the vibration absorption buffer sleeve is arranged between the hinged shaft and the hinged shaft base; and the connecting base is arranged on the spherical vibrating plate, and the excitation source is fixed on the connecting base. The hopper can reduce the impact effect of vibration on the hopper body, avoid the damage of the vibration to the structure of the hopper body, reduce the noise of the vibration, is benefit for environmental protection, has good anti-blocking effect and can reduce the labor strength of workers and improve the continuity of transportation.

The invention discloses a vibration anti-blocking method and device for pneumatic conveying of concrete mortar. The device comprises material conveying hoses, semicircular groove support pipes, hoops,pneumatic vibration devices, connecting flanges, tripod elastic vibration devices and extension springs. The hoops are distributed in the axial direction of the material conveying hoses. The materialconveying hoses are fixed in the semicircular groove support pipes. One tripod elastic vibration device is arranged at each hoop, and the extension springs hang the semicircular groove support pipesthrough the tripod elastic vibration devices and the hoops so as to enlarge the vibration propagation distance and adjust the vibration frequency and amplitude. The two ends of each connecting flangeare connected with the two semicircular groove support pipes, the upper portions of the connecting flanges are connected with the pneumatic vibration devices, the pneumatic vibration devices are connected with gas pipes and vibrate after high-pressure gas is introduced, a material adhered to the inner walls of the conveying hoses is stripped under the action of vibration, and the pipe blocking prevention is achieved. The vibration anti-blocking method and device have the beneficial effects that the vibration wave propagation distance is far, and the laying is convenient; the vibration frequency is adjusted through the spring rigidity to enhance the stripping effect of the adhered material; and the vibration of the pneumatic vibration devices and the material conveying process are synchronized to realize the real-time pipe anti-blocking.

The invention relates to an artificial lawn free from sand stuffing and applied to a cage type football field. The artificial lawn comprises a lawn base layer, a back glue layer, straight filament tufted piles, and bended filament tufted piles, wherein the back glue layer is uniformly arranged on the back of a base cloth of the lawn in a coating manner; the straight filament tufted piles and the bended filament tufted piles are tufted on the lawn base layer in a machine-knitted manner; the back glue layer is fixed on the back of the lawn base layer in a manner of uniform coating and curing; and drainage holes are formed in a composite layer of the lawn base layer and the back glue layer. According to the artificial lawn disclosed by the invention, the situation that straight filaments in a straight filament tufted pile substance is erected can be guaranteed, and the situation that the artificial lawn has good cushioning property can be guaranteed; the fall damage prevention grade of the artificial lawn in the use process is improved, and the drainage property of the artificial lawn is guaranteed; and sand materials do not need to be stuffed in the use process of the artificial lawn; so that the cost is reduced, and the safety and the environmental protection of the production and the use of the artificial lawn can be guaranteed.

The invention discloses an anti-blocking baffling type percolation dam which comprises a retaining dam body, a downstream percolation area, a partition wall, an upstream percolation area and a side wall. A water body in a river channel flows into the downstream percolation area through a water inlet inclined pipe arranged on the retaining dam body, then passes through a water passing hole in the bottom of the partition wall to flow into the upstream percolation area and flows out of the top of the upstream percolation area. The water inlet inclined pipe is adopted for water inputting, the upstream and downstream baffling mode is adopted in the percolation areas, emerging and sinking multi-element vegetable layers are adopted, and the dam has the advantages of being good in anti-blocking effect, high in filtering efficiency and good in purification and landscape effect.

The invention relates to an anti-blockage rotary bin which comprises a cylindrical bin body, a conical bin body, a discharge gate and a supporting frame. The conical bin body is disposed on the lowerside of the cylindrical bin body, and a discharge port is disposed at the bottom of the conical bin body. The discharge gate is disposed at the lower end of the conical bin body. The upper end of thesupporting frame is connected with the cylindrical bin body. The conical bin body comprises a plurality of rotary bin bodies, a supporting frame and a rotary bin body driving device, wherein frustum-shaped inner side walls are disposed on the rotary bin bodies, the rotary bin bodies are vertically sequentially in pivot joint, the supporting frame is connected with the lower end of the bottommost rotary bin body, the frustum-shaped inner side walls of the rotary bin bodies form an inner side wall of the conical bin body, and the cylindrical bin body is in pivot joint with the topmost rotary binbody of the conical bin body. In the anti-blockage rotary bin, the conical bin body is good in anti-blockage effect.

The invention discloses a spraying system for a waste gas purifying tower. The spraying system comprises a spraying main pipe (1) and is characterized in that spraying branch pipes (2) are evenly built on the spraying main pipe (1), spiral sprayers (3) are evenly arranged at the bottom of the spraying branch pipes (2), and water flow entering the spiral sprayers (3) from the spraying branch pipes (2) produces layered spraying by hitting a spiral layering interface. Due to the arrangement of the spiral sprayers, the water flow entering the spiral sprayers from the spraying branch pipes produces layered spraying through hitting the spiral layering interface, the streamlined design from an inlet to an outlet in a cavity of the spiral sprayer leads to the minimum resistance coefficient, so that liquid blockage is reduced to the greatest extent, the liquid reaches the maximum flow on a pipeline with specified size, in addition, the wear resistance, the corrosion resistance, the fogging property, and the anti-blocking property of the spiral sprayer are better than those of a tobacco pipe sprayer, the cost is low, the mass production can be carried out easily, and the spraying system is suitable for popularization and application.

The invention discloses an anti-blocking device for a coal drop pipe, relates to the technical field of coal drop pipes, and provides the following scheme aiming at the problems that an existing coaldrop pipe is blocked, needs to be manually dredged by workers, is low in manual dredging efficiency and can influence the working efficiency of the device: the anti-blocking device comprises a first pipe; the bottom of the first pipe is fixedly connected with a second pipe; a fixed base is fixedly connected to the outer wall of the left side of the second pipe; a first stirring mechanism is movably arranged in the first pipe in a sleeved manner; a second stirring mechanism is movably arranged in the second pipe in a sleeved manner; a driving vibration mechanism is fixedly connected to the leftside of the first pipe; and a transmission mechanism is arranged between the bottom of the driving vibration mechanism and the first stirring mechanism. The anti-blocking device not only facilitatesstirring in a pipe, but also can drive the pipe to vibrate, so that the anti-blocking effect of the pipe can be improved, manual cleaning is not needed, labor is saved, efficiency is high, the workingefficiency of the device is not affected, and the anti-blocking device is multipurpose and high in practicability.

The invention discloses a safety valve with an anti-blocking structure for an electric water heater. The safety valve comprises a check valve. An external thread is integrally formed in the outer surface of the bottom end of the check valve. A pressure relief valve is welded to the right side of the check valve. A pressure discharge pipe and a fixed pile are integrally connected with the lower surface of the pressure relief valve. The fixed pile is arranged on the right side of the pressure discharge pipe. A safety handle is arranged on the right side of the fixed pile. An inner cylinder is connected with inner side of the check valve through threads. A connecting rod and a first check ring are welded to the inner side of the inner cylinder. The first check ring is arranged on the upper side of the connecting rod. A connecting sleeve is welded to the inner side of the connecting rod in a penetrating mode. A first valve element is arranged on the inner side of the connecting sleeve in apenetrating mode. A water wheel is arranged on the outer surface of the first valve element in a sleeving mode. A cleaning rod is integrally connected with the outer surface of the water wheel. The safety valve has the anti-blocking structure, the limit to the safety handle can be conveniently removed, and the operation convenience is improved.

The invention discloses a self-moving material balance filtering device, an extraction kettle containing the same and a use method. The device comprises a circular ring mounting base and a pressing ring arranged below the circular ring mounting base; a filtering piece is arranged between the circular ring mounting base and the pressing ring, a plurality of ball mounting bases are evenly arranged on the upper surface of the circular ring mounting base along the circumference, elastic ball assemblies are clamped in the ball mounting bases, large balls are arranged in the elastic ball assemblies,the filtering device is driven to move up and down through rolling of the large balls, and the filtering piece is filtering cloth. The self-moving material balance filtering device provided by the invention can be automatically changed along with the height change of materials in the material basket; the free floating of the powdery raw material in the extraction process can be prevented; a largeamount of channeling caused by floating and dispersing of materials is avoided, the extraction effect is improved, the product recovery rate is increased, the extraction time is shortened, the production cost is reduced, the filter cloth can conduct primary filtration on powdery raw materials in an extraction medium, and the phenomenon that raw material fine powder enters a filter screen or a filter plate at the top of a material basket is greatly reduced.

The invention discloses a material and muck transporting method for TBM tunnel construction. A tunnel comprises a main tunnel, a parallel adit tunnel and an auxiliary channel used for communicating the main tunnel with the parallel adit tunnel. The parallel adit tunnel comprises a small TBM entrance segment and a small TBM tunneling segment. A temporary transporting line of dual rails is arrangedon the small TBM entrance segment. Three parallel adit transporting lines of four rails are arranged on the small TBM tunneling segment. A muck transporting belt and two main tunnel transporting linesof the four rails are arranged on the main tunnel. The tail of a large TBM crosses over the auxiliary channel, and after the parallel adit transporting lines are connected with the main tunnel transporting line through the auxiliary channel, a parallel adit transporting line extension line connected with the main tunnel transporting line is arranged in the auxiliary channel. During expanding excavation of the parallel adit tunnel, the parallel adit transporting lines are connected with the main tunnel transporting line through the auxiliary channel in front of the expanding excavation work face of the parallel adit tunnel, and then expanding excavation of the parallel adit tunnel is achieved through a borehole-blasting method. The method cooperates with the construction process, and material and muck transporting is matched with the excavation schedule.

The invention discloses an agricultural dripping irrigation system. The agricultural dripping irrigation system comprises a reservoir, wherein the upper part of the reservoir is communicated with a water inlet; a nutrition liquid addition hole is formed in one side of the water inlet; a water outlet is formed in the inner bottom part of the reservoir; a water pump is mounted at the water outlet; one side of the water pump is connected with a main pipeline; one side of the main pipeline is connected with a plurality of branch pipelines through bypass pipe flanges; drippers are uniformly mounted on the branch pipelines; a net-type filter is mounted on the main pipeline; the net-type filter comprises a shell and a filter screen; the filter screen is mounted inside the shell; spring grooves are formed in the drippers; springs are mounted in the spring grooves; the upper ends of the springs are fixedly connected with end covers. The agricultural dripping irrigation system is reasonably designed, and has a simple structure, a good anti-blocking effect and a good dripping irrigation effect.

The invention discloses a belt conveyor blockage preventing device which comprises a receiving tray, a rotating shaft and sleeves, and further comprises a counterweight and an induction plate, whereinthe receiving tray is used for receiving a material; the rotating shaft is used for fixing the receiving tray; the receiving tray is connected to the rotating shaft in such a manner that one side ofthe receiving tray is taken as an axis; the sleeves are arranged at two ends of the rotating shaft and used for fixing the rotating shaft, so that the receiving tray can rotate in the sleeves in sucha manner that the rotating shaft is taken as an axis; the counterweight and the induction plate are arranged at one end of the rotating shaft; the counterweight is adjustable, and the counterweight and the receiving tray are correspondingly arranged on two sides of the rotating shaft, so that the balance between the counterweight and the receiving tray can be achieved in such a manner that the rotating shaft is taken as a supporting point; and when the accumulation on the receiving tray is excessive, the gravity of the counterweight is overcome by the receiving tray, the induction plates is driven by the receiving tray to rotate into the induction range of a proximity switch of a belt conveyor, and the power supply to the belt conveyor is cut off through an induction switch, so that the blockage or scattering phenomenon can be prevented. The above belt conveyor blockage preventing device can act when the leakage on a belt is excessive, the proximity switch can be triggered to cut off the power supply to the belt conveyor, and then the blockage can be prevented; the structure is simple; and the manual monitoring is not needed. The invention further discloses a using method of the above belt conveyor blockage preventing device.

The invention discloses an automatic processing system for building decoration garbage and a working method. The system comprises a building garbage feeding unit, a decoration garbage feeding unit, aprimary crushing unit I, a primary crushing unit II, an iron removing unit, a primary screening unit I, a primary screening unit II, a primary manual sorting unit I, a primary manual sorting unit II,a primary winnowing unit I, a primary winnowing unit II, a packaging unit, an intelligent photoelectric sorting unit, a secondary crushing unit, a secondary screening unit, a tertiary crushing unit, an aggregate screening unit, a wood winnowing unit and an RDF forming unit. The automatic processing system for the building decoration garbage is high in automation degree, high in working efficiencyand flexible in application. According to the working method of the automatic processing system for the building decoration garbage, the working principle is simple and easy to implement, the automation degree of the working process is high, the required manpower is low, the production efficiency is improved, and industrial large-scale application is realized.