37results about How to "Guaranteed pumping effect" patented technology

The invention relates to a downward drilling hole draining device. The downward drilling hole draining device comprises a drainage system, a compressed air system and a draining system; the drainage system is formed by a drainage pipe and a control valve; the compressed air system is formed by an air injection pipe and a control valve; the draining system is formed by a draining pipe and a control valve. According to the downward drilling hole draining device which aims at solving the problem of water accumulation of a drilling hole, the water accumulation of the downward layer-penetrating drilling hole can be drained under the condition that drainage is stopped or not stopped and accordingly the drainage effect can be ensured.

The invention relates to a chlorine salt-free ammonia-free liquid concrete anti-freezing pumping agent, which comprises the following raw materials by weight: 250-300 parts of high concentration naphthalene series high efficiency water reducer; 10-35 parts of glycol, 10-15 parts of maltodextrin, 60-100 parts of methanol, 80-120 parts of sodium thiosulfate, 30-80 parts of sodium nitrite, 1-5 partsof sodium abietate and 400-600 parts of water. The concrete anti-freezing pumping agent has the characteristics of no chlorine salt containing, no corrosion on steel bars, no ammonia containing and no exceeding standard of ammonia in buildings; and the researches found that the anti-freezing pumping effect substantially exceeds the expectation of the technical staffs.

The invention discloses a packaging method of double-glazed solar cell modules. A sealing ring is mounted on the edge of to-be-packaged double-glazed solar cell modules to seal the insides of the double-glazed solar cell modules; the to-be-packaged double-glazed solar cell modules are conveyed to a preheating zone of a flat press to be preheated; the inside of each to-be-packaged double-glazed solar cell module is subjected to vacuum pumping by a vacuum pressure device, prepressing is performed with negative pressure, and the heating state is kept; after prepressing, the sealing ring is dismounted; the prepressed double-glazed solar cell modules are input into an autoclave to be pressed. The negative pressure produced by vacuum pumping of each solar cell module by a vacuum pumping system of the flat press is used for prepressing, bubbles in the modules are removed, damage caused by pressing with external mechanical force to the cells in conventional methods is avoided, the breakage rate of the cells is decreased, and the product percent of pass is increased.

The invention discloses a measurement packing method for powder containing air. A powder material from an airflow conveying system is temporarily stored in a powder bin; a screw feeder arranged at the bottom of the bin feeds to a middle material cylinder; the material in the middle material cylinder is sent into a packing bag through a hollow stirring shaft; the air contained in the powder is pumped out through a filtering rod arranged inside the hollow stirring shaft in the flow direction; the air pumping process is divided into two levels; according to the first level, air pumping is conducted in a packing material cylinder; according to the second level, deep air pumping is conducted in the packing bag; when the material in the packing bag reaches 99.8% of the rated value, the air pumping filtering rod is quickly removed, and a cut-off valve is turned down; when the weight of the material in the packing bag reaches the set value, the screw conveyor stops feeding, and the cut-off valve is quickly closed; and measurement packing work is completed, and the subsequent working procedures of bag sewing and stacking are executed. According to the measurement packing method, the problem existing in the measurement packing process of the powder containing the air can be effectively solved, and efficient and accurate measurement packing is achieved.

The invention discloses a method and a device for determining a reasonable mining position of a high position roadway. The determination method is characterized by comprising the following steps of: determining the height of a caving zone and the range of a crack zone in a goaf; selecting an appropriate stratum of the high position roadway in the middle and lower part of the crack zone, and satisfying the following formula: Hz=Hm+Delta Hm, Hm < Hz < H1, wherein Hz is the stratum height of the high position roadway, m; Hm is the height of the high position roadway, m; Delta Hm is the height preventing high extraction roadway from destroying safety, and takes 1 to 1.5 times of the mining height, m; Hl is the height of crack zone, m.

The invention relates to a filling material and a preparation method thereof. A high-pumpability filling material for phosphate mine is characterized by being prepared from a cementing material, aggregate, water and an additive, wherein the mass percent contents of the cementing material, the aggregate and the water are as follows: the cementing material accounts for 10-30%, the aggregate accounts for 60-85%, and the water is as balance; the additive comprises a water reducing agent and an activating agent, wherein the adding amount of the water reducing agent is 0.5-1.5% of the mass of the cementing material, and the adding amount of the activating agent is 5% of the mass of industrial waste residue in the cementing material; the cementing material is prepared from cement, sub-micron ultrafine reactive powder and industrial waste residue, wherein the cement accounts for 40-70% of the mass of the cementing material, the sub-micron ultrafine reactive powder accounts for 15-40% of the mass of the cementing material, and the industrial waste residue accounts for 0-35% of the mass of the cementing material. The filling material has the characteristics of being high in pumpability, low in water segregation amount, high in strength and low in filling cost.

The invention discloses a high-rate quick-setting mining hole sealing material and a using method thereof, and belongs to mining hole sealing materials. The hole sealing material is prepared from thefollowing raw materials in percentage by mass: 10%-30% of quick-setting powder, 60%-80% of Portland cement, 1%-6% of bentonite, 0.3%-0.5% of sodium chloride, 0.1%-0.3% of sodium aluminate, 3%-8% of quick lime, 0.05%-0.2% of a water reducing agent and 0.05%-0.2% of an active agent through even stirring according to the mass ratio of 1: 1.6-2. The hole sealing material is high in multiplying power and short in setting time, the expansion multiplying power ranges from 10% to 100%, the final setting time is shorter than 120 min, the compressive strength and the setting time are not affected whilethe multiplying power is improved, the strength and the setting time of gas extraction are met, and the long-term effect of hole sealing is guaranteed. Due to the high-expansion property of the hole sealing material, the pipe wall is filled with the hole sealing material, gas leakage caused by pores is avoided, the safety performance is improved, materials are saved for extraction pipes with the same length, and the gas extraction cost is reduced. The hole sealing material has the advantages of low price, no toxicity, no pollution, high hole sealing efficiency, favorable flowability and favorable plasticity.

The invention relates to a dust treatment method, belongs to the technical field of coal mining, and particularly relates to a method for treating dust in underground coal mine roadway driving. According to the method, a large amount of dust and gas and other harmful gases generated in roadway driving are discharged through a large-diameter tunneling cave drilling negative-pressure ventilation anddust removal, and the method is small in pollution and high in efficiency and can reduce the occurrence of disaster accidents.

The invention discloses high-performance concrete prepared from recycled slurry water. The concrete comprises the following components in parts by weight: 135-225 parts of cement, 8-12 parts of micropowder, 80-100 parts of coal ash, 750-900 parts of gravels, 500-750 parts of machine-made sand, 120-150 parts of water, 70-120 parts of slurry and 8-12 parts of an additive. The additive is prepared from the following raw materials in percentage by mass: 76% of a slump retaining agent, 6% of an expanding agent, 8% of a retarder and 10% of deionized water. By adjusting the ratio, the bleeding rateof the concrete is reduced. Meanwhile, the bleeding rate is reduced, the viscosity of the concrete is improved, and the segregation resistance is improved.

The invention discloses a water pump for a household dish washing machine. The water pump comprises a water suction pump, a sound-proof damping device and a filtering device, wherein the upper portion of the water suction pump is connected with the filtering device; the lower portion of the water suction pump is connected with the sound-proof damping device; the water suction pump comprises a water suction pump body, a water inlet pipe, a water outlet pipe and a flow control box; the sound-proof damping device comprises a sound-proof box and a damping base; the lower end of the sound-proof box is fixedly connected with the damping base; the sound-proof box is provided with a water outlet, a water inlet and a control port; the damping base comprises a damping stand and a spring device; the filtering device comprises a filtering pipe and a filtering net layer. The water pump for the household dish washing machine is high in practicability, the stability of the water suction pump during operation is improved, the water suction effect is guaranteed, the whole process is convenient to operate, the sound-proof effect is remarkable, and the working efficiency is improved.

The invention discloses an irrigation device used for energy saving type agricultural production. The irrigation device comprises a base, wherein the top end of the base is fixedly connected with a box body; a water collection mechanism is fixedly connected in the box body and comprises a water collection groove, a water tank, a flow guide plate, sliding chutes, sliding blocks, a filtering plate,a collection groove, a slag discharging hole, a water inlet and a filter screen; the top end of the box body is provided with the water collection groove; the edge side position of the inner wall of the water collection groove is fixedly connected with the water tank; and the top end of the water tank is fixedly connected with the flow guide plate. The irrigation device has a scientific and reasonable structure and can be safely and conveniently used. The irrigation device is provided with the water collection mechanism, rainwater is collected through the water collection groove, and water isprevented from accumulating on the top end of the water tank through the flow guide plate so as to improve the use efficiency of water resources and avoid waste. Through the filtering plate, large impurities in the rainwater are filtered and are intensively collected through the collection tank, and the filtering plate can conveniently slide out through the cooperation of the sliding chutes and the sliding blocks so as to be convenient to clean large impurities in the collection tank.

The invention relates to a method for preparing a heat-insulation pipe by films. Through the bag-type films, a heat-insulating material does not directly contact with inner containers of an upper mold and a lower mold so that in mold opening, the inner containers can be separated from the heat-insulating material well and thus the heat-insulating material is protected from damage and the bag-type film can well cover the whole heat-insulating layer surface. A vacuum-pumping assembly is used for air exhaust from a through hole so that the bag-type films are respectively adsorbed on the inner walls of the inner containers of the upper mold and the lower mold under the action of negative pressure and thus the films tightly cling to the inner walls of the inner containers, and in liquid heat-insulating material injection, the films do not wrinkle because of heat-insulating material adhesion to the films and surface thickness of the heat-insulating material is more uniform.

The invention discloses a coal bed gas drainage and gas recovery device, which can greatly improve the efficiency of water pumping, ensure the reliable operation of a water pump, and when the water ispumped in a prior mode, too low water level can cause damage to the water pump, and meanwhile, the water in an extraction hole can be extracted neatly, that the extraction hole is in a state of no water or low water level is always guaranteed to ensure the effect and efficiency air exhaust. According to the invention, when the drainage is performed, the water is collected into a secondary water storage barrel by using a rotary lifting mode, and then the water in the secondary water storage barrel is collected to a primary water storage barrel, so that the drainage is performed through a drainage pump, while the drainage efficiency is improved, the operation time of the drainage pump with large power is reduced, the reliability is ensured, and meanwhile, the drainage efficiency and drainage degree in the extraction hole can be ensured.

The invention relates to an automatic pattern turning machine. The automatic pattern turning machine comprises a machine frame, a material sheet positioning device arranged on the machine frame and apattern turning device arranged on the machine frame and used for carrying out pattern turning machining on a material sheet, wherein the pattern turning device is located above the material sheet positioning device; the material sheet positioning device comprises a mounting plate arranged on the machine frame, a suction mold plate arranged in a cavity mode and mounted on the mounting plate, a positioning mold plate placed on the suction mold plate and used for the material sheet to be place, and an air suction assembly used for sucking air in a cavity of the suction mold plate to suck the positioning mold plate on the suction mold plate, the positioning mold plate is provided with a plurality of suction holes which communicate with the suction mold plate cavity to suck the positioning mold plate, the upper end face of the positioning mold plate is provided with a plurality of fixing grooves, and a material sheet is fixed in the fixing grooves in a bonding mode. The automatic pattern turning machine has the effect of improving the jewelry machining production efficiency.

The invention relates to an air exhaust device for a starch packaging machine, belonging to the field of equipment for packaging starch. The air exhaust device comprises a filter element which is connected with a lifting mechanism; and an inner cavity of the filter element is connected with a vacuum extract device through a main pipeline which is provided with a valve. The filter element and the vacuum extract device of the pipeline connected with the filter element can ensure that air in bags can be exhausted; after the air is exhausted, the density of materials in packaging bags becomes greater, the packaging bags are firm, the bag stacking is convenient and the stacker scattering is not easy to generate; meanwhile, after the material density becomes greater, the packager volume becomes smaller and consumed packaging materials also become smaller, thereby greatly saving the cost; and after the materials become firm, in the process of loading, unloading and transporting, the package bags are not broken easily and does not leak dust, thereby ensuring that the net weight is more accurate and the carrying environment can be improved, therefore, the technical scheme can bring favorable economic benefit and environment-friendly effect and provide the guarantee for personnel safety and site safety.

The invention discloses a reverse gravel throwing device and method. A gravel throwing valve body comprises an adapter, a lower branch pipe, a gravel non-return cover plate and a reset element; the top end of the adapter is used for being connected to a built-in filter, the bottom end of the adapter is in sealed connection with the top end of the lower branch pipe, the gravel non-return cover plate is movably connected to a port of the bottom end of the adapter, sand setting holes capable of preventing gravel from passing through are formed in the gravel non-return cover plate, the reset element can provide reset force to enable the gravel non-return cover plate to keep blocking the port of the bottom end of the adapter, and a flow guide groove is formed in the bottom end of the lower branch pipe; and the top end of a connector body is used for being in sealed connection with a gravel throwing pipe, the bottom end of the connector body is connected to a pushing rod, and when the bottom end of the connector body is inserted into the adapter and is in sealed connection with the adapter, the pushing rod can overcome the reset force of the reset element to push and open the gravel non-return cover plate. According to the reverse gravel throwing device and method, the gravel does not flow back, the gravel non-return cover plate does not rebound due to the change of water flow, the gravel throwing effect is ensured, settled sand can be prevented from being accumulated in the built-in filter, the pumping and injecting effect is ensured, and the well washing cost is reduced.

The invention relates to a method for controlling dust, which belongs to the technical field of coal mine mining, and in particular to a method for controlling dust in underground tunnels of coal mines. The method discharges a large amount of dust, gas and other harmful gases produced in the process of roadway excavation through negative pressure ventilation and dust suction of the drilling of the tunnel through a large aperture, with little pollution and high efficiency, and can reduce the occurrence of disasters and accidents.

The invention discloses a coal bed gas drainage and gas recovery device, which can greatly improve the efficiency of water pumping, ensure the reliable operation of a water pump, and when the water ispumped in a prior mode, too low water level can cause damage to the water pump, and meanwhile, the water in an extraction hole can be extracted neatly, that the extraction hole is in a state of no water or low water level is always guaranteed to ensure the effect and efficiency air exhaust. According to the invention, when the drainage is performed, the water is collected into a secondary water storage barrel by using a rotary lifting mode, and then the water in the secondary water storage barrel is collected to a primary water storage barrel, so that the drainage is performed through a drainage pump, while the drainage efficiency is improved, the operation time of the drainage pump with large power is reduced, the reliability is ensured, and meanwhile, the drainage efficiency and drainage degree in the extraction hole can be ensured.

The invention discloses a disinfectant funnel type pressing bottle, which comprises a liquid storage bottle with an opening in the top; the screw cap is detachably connected with the liquid storage bottle and can be buckled at the opening; the pressing pump is arranged in the center of the screw cap, and a pressing head is arranged at the top of the pressing pump; the liquid storage funnel is arranged on the pressing head in a sleeving manner; the sliding cover is arranged at the top of the liquid storage funnel, is detachably connected with the screw cap and can slide along the side wall of the screw cap; wherein the sliding cover slides along the screw cap; the pressing head can be pressed; liquid in the liquid storage bottle is pumped into the liquid storage funnel from the pressing part; the disinfectant funnel type pressing bottle is designed and developed, the pressing pump is sleeved with the liquid storage funnel, liquid in the liquid storage bottle is pumped into the liquid storage funnel from the pressing pump to be dipped by pressing the pressing head, a bottle cap does not need to be opened, disinfection liquid is repeatedly dipped through a cotton ball, and disinfectant infection is avoided.

The invention belongs to the technical field of road maintenance, particularly relates to a summer road pressure reduction and maintenance device, and aims at solving the problems that gas existing ingaps of the ground of an existing summer road is hot gas, the road is damaged by the hot gas, and an existing pressure reduction device generally achieves cooling and pressure reduction and maintenance by spraying water, however, the cooling effect achieved through water spraying is limited, the water spraying range is large, and spraying blind spots exist in part of areas. The invention providesthe following scheme: the summer road pressure reduction and maintenance device comprises a fixing plate. By arranging a sucking pump, an air plate and air holes, when road maintenance and pressure reduction are conducted, the sucking pump is started, high-temperature air on a road is guided into the air plate through the air holes and then guided into the water tank through the sucking pump, andtherefore, collection of the high-temperature air on the road is achieved, and the situation that the road surface is thermally expanded due to the high-temperature air is prevented, and the road maintenance and pressure reduction effect is improved; and the grounding block below the air plate prevents the air plate from being in close contact with the road surface, so that the air sucking effectis ensured.

The invention relates to a semiautomatic sunflower turning machine. The semiautomatic sunflower turning machine comprises a rack, a sheet positioning device arranged on the rack and a turning device arranged on the rack for turning sheets, wherein the turning device is positioned above the sheet positioning device; the sheet positioning device comprises a positioning molding board arranged on therack for placing the sheet, and a fixing pressing plate detachably connected onto the positioning molding board for fixing the sheet; a plurality of placing slots adaptive to the sheet in shape are formed in the upper end surface of the positioning molding board; processing slots adaptive to the placing slots in shape are correspondingly formed in the fixing pressing plate; and the area of the processing slots is smaller than that of the placing slots. The semiautomatic sunflower turning machine has the effect of improving jewelry processing efficiency.

The quick-disassembly type plastic suction mold comprises a bottom box, a plastic suction mold body, a suction hole and a suction pipe, a base plate is fixedly mounted at the top of the bottom box, a top sleeve is fixedly mounted at the output end of the top of a servo motor, the outer side of the top end of the top sleeve is attached to the inner wall of a track window, and a vertical threaded rod penetrates through a hole formed in a mounting plate. A horizontal adjusting mechanism is arranged on the outer side wall of the mounting plate, a clamping plate is welded and fixed to the top end of the vertical threaded rod, the clamping plate is attached to the inner wall of a positioning clamping groove, and the positioning clamping groove is formed in the bottom face of the plastic suction mold body. According to the quick release type plastic suction mold, novel structural design is adopted, it can be guaranteed that connection between the plastic suction mold and the mounting base is tight and free of air leakage, operation is convenient and fast, the locking structure at the bottom can be controlled and driven from the side to move quickly, it is guaranteed that the plastic suction mold can be positioned and locked quickly and can also be unlocked quickly, and the plastic suction mold is convenient to disassemble and assemble. And quick disassembly and replacement of the plastic suction mold are facilitated.

The invention provides a flange, a pump body assembly, a rotary compressor and an air conditioner. The flange comprises a flange body, a bearing hole used for inserting a crankshaft is formed in the flange body, a vibration reduction ring groove is formed in the hole opening wall of the side, close to an eccentric part of the crankshaft, of the bearing hole, and a spiral oil guide groove is formed in the hole wall of the bearing hole; and the spiral oil guide groove comprises a first groove section located on a first hole section and a second groove section located on a second hole section, and the maximum groove width of the second groove section and the maximum groove depth of the first groove section are smaller than the minimum groove depth of the second groove section. According to the flange, the spiral oil guide groove on the first hole section, namely the first groove section, is designed into the shallow groove structure, so that the outer ring groove wall of the vibration reduction ring groove can be closer to the bearing hole, the sealing distance of the end part of the flange body and the matching position of a roller is increased, and the volume efficiency of a pump body structure is improved; and meanwhile, the phenomenon of opening collapse caused by too small wall thickness of the wall body between the vibration reduction ring groove and the bearing hole can be prevented.

The invention belongs to the technical field of goaf gas extraction, and particularly relates to a Y-shaped ventilation working face goaf top pipe gas extraction method. The method comprises the following steps that S100, on the side, close to a goaf, of a filling roadway, a telescopic jack is used for jacking a top pipe obliquely upwards, and screen meshes are uniformly formed in the front end of the top pipe; the whole top pipe is completely jacked, and large rocks are avoided in the pipe jacking process; S200, after the jacking of the top pipe is completed, a drainage pipe is prepared, the drainage pipe is quickly inserted into the top pipe, and the drainage pipe is fixed to prevent the situation that the hole sealing quality is affected by shaking; S300, after 5 minutes of hole sealing, a polyurethane solution starts to foam and expand, the foam can permeate into the goaf through the screen meshes in the top pipe to block gaps, foaming is stopped after 20 minutes, and hardening and solidification are gradually carried out; and S400, after 1 hour of polyurethane hole sealing, the drainage pipe is connected with an extraction pipeline for gas extraction, an observation hole and a valve are arranged on the extraction pipeline and are used for sampling gas, and spontaneous combustion ignition marking gas is detected at any time.

The invention relates to the technical field of metallurgical coking, in particular to a vacuum system and process for a three-mixed fraction vacuum tar distillation tower. The system comprises a reflux tank, a vacuum catcher and a vacuum cooler; the reflux tank is divided into a first chamber and a second chamber which are independent by a partition plate, the second chamber is directly connected with the vacuum catcher, the first chamber and the second chamber are connected with the vacuum cooler through pipelines, and the vacuum catcher is connected with the vacuum cooler and a diffusing system through pipelines; the tower top of the vacuum tar distillation tower is connected with the first chamber through a pipeline, the first chamber and the second chamber are connected with the reflux pump through pipelines, and the reflux pump is connected with the tower top of the vacuum tar distillation tower through a pipeline. The content of condensed oil gas similar to wash oil in vacuum air is reduced, the quality of the vacuum circulating liquid wash oil is guaranteed, the operation time is prolonged, and the replacement period is shortened; the temperature of vacuum air entering the liquid ring type vacuum pump is reduced, the normal air pumping capacity of the liquid ring type vacuum pump is guaranteed, and the situation that the air pumping capacity of the vacuum pump is reduced due to too high temperature of the entering vacuum air is avoided.

The invention discloses a ventilating-cabinet-free elimination boiling device which comprises an elimination boiling chamber (1) and a control motor (2), wherein a closed top cover (3) is arranged above the elimination boiling chamber (1), and an interlayer cavity (4) is formed between the top cover (3) and the upper wall of the elimination boiling chamber (1); a gas suction opening of a gas extraction pipe (5) extends into the upper side of the front part of the inner cavity of the elimination boiling chamber (1) through the interlayer cavity (1); an outlet of the gas extraction pipe (5) is connected with a cooling pipe (7) positioned in a waste gas absorption pool (6) below the elimination boiling chamber (1); the cooling pipe (7) is communicated with a gas suction opening of a high-pressure corrosion-resistant fan (8) positioned on the rear side of the control motor (2); a gas outlet of the fan (8) is communicated with an aeration pipe (9); a horizontal part, which is positioned in the waste gas absorption pool (6), of the aeration pipe (9) is of a clip structure. The equipment disclosed by the invention occupies a small space, is high in absorption efficiency and is long in service life.