31results about How to "Prevent gushing" patented technology

The present invention belongs to the technical field of lost foam casting, and specifically discloses a lost foam casting mold, comprising a first sand box, wherein the bottom of the first sand box is fixedly connected to a base, and both sides of the inner wall of the first sand box are provided with evenly distributed second sand outlets, and both sides of the outer wall of the first sand box are slidably connected to closed doors, and the closed doors block the second sand outlets, and both sides of the inner wall of the first sand box are slidably connected to reciprocating plates, and one side of the outer wall of the reciprocating plate is fixedly connected to evenly distributed compacting plates. In the present invention, by arranging structures such as compacting plates and warping edges, the quartz sand inside the first sand box can be shaped and lifted to prevent it from sinking downward quickly after the second sand outlet is opened, and at the same time, it can also block the quartz sand in the middle, limit the flow speed of the quartz sand, facilitate operators to guide and collect it in an orderly manner in a safe environment, and ensure that the casting is not affected by it.

The invention discloses an improvement method of sludge soft soil layer shield muck, and belongs to the technical field of shield tunnel construction muck improvement. Metakaolin, blast furnace slag, lignosulfonate and nano silicon dioxide powder are mixed to prepare a mixed raw material, the mixed raw material is pumped into a muck bin, then an alkali-activated solution is pumped into the muck bin, and the mixed raw material is stirred to be uniform; and after mixing and stirring, adding anionic polyacrylamide powder and bentonite, and continuously stirring until a gel system is generated, thereby completing muck improvement. According to the invention, sodium hydroxide and sodium silicate are used as alkali-activated solutions to activate a gel system, blast furnace slag provides a large amount of silicon elements and aluminum elements, and metakaolin contains silicon, aluminum and calcium elements to improve the strength of the gel system; during use, the two raw materials are separated, so that the two raw materials are prevented from reacting in advance before reaching a muck bin to generate gel, and pipeline blockage is avoided; the anionic polyacrylamide and the bentonite are matched, so that the permeability is improved, the drainage of water is facilitated, and the occurrence of spewing is effectively prevented.

The invention relates to the technical field of winnowing and removing devices, in particular to a wizened snakegourd seed winnowing and removing device which comprises a processing platform, a winnowing and removing mechanism used for separating wizened snakegourd seeds is arranged on the processing platform, and a batch feeding mechanism is arranged in the winnowing and removing mechanism. A winnowing auxiliary mechanism for separating the separated wizened snakegourd seeds is arranged below the winnowing removing mechanism, a rapid discharging mechanism is arranged on the processing platform, the winnowing removing mechanism comprises an air conveying pipeline fixedly installed on the processing platform, and the upper end of the air conveying pipeline is communicated with an air injection disc. According to the snakegourd seed winnowing and removing device, the winnowing and removing mechanism is arranged, the snakegourd seeds can evenly fall down in a rotating mode through mutual cooperation between the rotary feeding assembly and the material guiding inclined plate, the snakegourd seeds can be effectively prevented from being mutually shielded and overlapped in the falling process, and therefore the snakegourd seed winnowing and screening effect is improved; and local accumulation of the snakegourd seeds on the processing platform can be avoided.

The invention relates to the technical field of smelting devices, and provides a direct-current submerged arc furnace for smelting, which comprises an operation platform, an electric furnace body, a low smoke hood type furnace cover, a guide rack, a rectifier transformer, a direct-current power supply, a cooling water system and a hydraulic station, and is characterized in that the low smoke hood type furnace cover is erected and mounted at the upper end of the electric furnace body; the low smoke hood type furnace cover is composed of a side wall and a top cover, a graphite electrode clamp is arranged above the low smoke hood type furnace cover, the graphite electrode clamp comprises a connecting shaft, the upper end of the connecting shaft is fixedly connected with the guide rack, and a sliding rod is vertically installed at the upper end of the connecting shaft. An original alternating-current submerged arc furnace holder system is omitted, the electric arc furnace type conductive cross arm stand column is adopted for lifting, lifting is stable, the lifting speed is adjustable and controllable, a traditional alternating-current transformer is designed into a rectifier transformer and a direct-current power source, main electric energy is provided, electric energy loss is reduced, and the effects of saving smelting cost and reducing power grid impact are achieved.

The present invention discloses a method for precise docking of shields of ultra-large diameter submarine tunnels in a complex coupling environment, including measurement adjustment control, docking construction position determination, docking reinforcement steps, shield disassembly and internal lining construction steps during the excavation of two shield machines in opposite directions. The present invention is based on setting a pre-test lateral penetration error model outside the tunnel and a post-test lateral penetration error model inside the tunnel, and calculates and verifies the pre-test lateral penetration error outside the tunnel and the post-test lateral penetration error inside the tunnel to accurately control the measurement adjustment. In addition, during the excavation and docking process of the two shield machines, the strata at the docking position, the shield machine and the shield tail segment are reinforced multiple times to achieve docking in a highly permeable submarine environment, wherein the advanced reinforcement sealing device is used in the advanced grouting reinforcement to prevent the high permeability of the seabed from causing mud and water on the outside of the shield body to gush into the shield body during drilling and grouting, thereby further improving the stability of the submarine docking.

The utility model belongs to the technical field of crushing devices, and particularly relates to a straw crushing device which can separate a crushing mechanism in a preparation stage through the arrangement of an auxiliary mechanism when straws are crushed, so as to prevent impurities from gushing out due to the fact that a worker mistakenly touches the crushing mechanism or the straws are crushed in advance. The safety and the convenience of operation are improved; through the arrangement of the hinge rod, the opening and closing plate can synchronously and oppositely move only by controlling the port plate, so that the production efficiency and the operation convenience can be effectively improved; due to the arrangement of the material pusher, the feeding smoothness of the straw in the crushing process can be further facilitated; and the repositor can further improve the operation convenience and reduce the complexity degree of manual reset operation on the component.

A physiological signal sensing device includes a base for being set on the skin surface of a biological body, a sensor, a transmitter, and a sealing unit. The sensor includes a fixing seat and a sensing test piece. The fixing seat has a through hole. The sensing test piece is set on the fixing seat and partially penetrates the through hole to be implanted under the skin surface of the biological body to measure physiological signals. The through hole is used for allowing an implantation needle to removably penetrate to guide the sensing test piece to be partially implanted under the skin surface of the biological body. The transmitter is used to receive and output the physiological signal. The sensor has a bottom. The transmitter is covered on the base with the bottom facing the base, and the sensing test piece is coupled to the transmitter. The sealing unit includes a top abutment group. The top abutment group is located between the bottom of the transmitter and the through hole of the fixing seat of the sensor, and seals the through hole of the fixing seat of the sensor to seal the implantation needle path.

The invention relates to the technical field of wastewater treatment, in particular to an electroplating nickel-chromium wastewater treatment device which comprises a sewage tank, a water suction pump is fixedly connected to the upper surface of the inner wall of the bottom of the sewage tank, one end of the water suction pump is fixedly connected with a door-shaped pipeline, and the other end of the door-shaped pipeline extends into a flocculation tank. Four square columns are fixedly connected to the four corners of the lower surface of the flocculation tank, stirring assemblies are fixedly connected to the upper surfaces of the tank walls of the two sides of the flocculation tank, and one end of the bottom of each stirring assembly is connected with an anti-condensation assembly in a meshed mode. According to the nickel-chromium electroplating wastewater treatment device, the water pump is matched with the flocculation basin, the sedimentation basin and the filter press, metal impurities such as nickel and chromium contained in wastewater are sequentially neutralized, stripped and filtered, the site requirement of the wastewater treatment device can be reduced through flow matching, and the production requirements of many related industries such as chemical engineering, metal or sewage processing plants are met; operation is convenient, and efficiency is high.

This invention discloses a pipe expansion joint reinforcement device and its construction method, comprising: two auxiliary pipe fitting assemblies, detachably fitted onto opposite ends of a pipe expansion joint; a support beam assembly, disposed on one side of the pipe expansion joint, the support beam assembly being arranged along the length direction of the pipe expansion joint, the support beam assembly including a first beam segment, a second beam segment, and an elastic element, the first beam segment forming an axially arranged socket channel, one end of the second beam segment slidingly disposed in the socket channel, and the elastic element connecting the first beam segment and the second beam segment; and a quick-connect assembly, the other ends of the first beam segment and the second beam segment respectively connected to the two auxiliary pipe fitting assemblies. This invention solves the problem that the pressure-bearing capacity of existing HDPE pipe expansion joints is relatively weak and prone to disengagement.

The utility model discloses a self-moving type sealing device for isolating poisonous and harmful gas in a goaf, which belongs to the technical field of mineral engineering and comprises a moving track, a first sealing component and a second sealing component are respectively arranged on the moving track, the first sealing component and the second sealing component are identical in structure, and the first sealing component and the second sealing component are arranged on the moving track. The first sealing assembly and the second sealing assembly are connected through a connecting assembly. The first sealing assembly comprises a blocking door, a telescopic body is connected to the interior of the blocking door, and a blocking component is arranged in the telescopic body. By adopting the self-moving sealing device for isolating the poisonous and harmful gas in the goaf, the poisonous and harmful gas in the goaf can be prevented from gushing out to a mine production system, the length of a mine ventilation route is reduced, the goaf sealing process is further simplified, the long-term labor intensity of workers is reduced, and the economic benefit of a coal mine is improved; and coal mine production is safe and efficient.

The utility model relates to a fluorine lining ball valve which comprises a valve body, a square box is arranged at the water inlet end of the valve body, the square box is fixedly communicated with the valve body through a communicating pipe, a sealing through groove is formed in the upper end face of the square box, and a rubber sealing plate is connected into the sealing through groove in a sleeved mode. A square frame slidably connected with the inner wall of the square box is fixedly connected to the lower end face of the rubber sealing plate, a filter screen is fixedly connected into the square frame, a blocking plate fixedly connected with the interior of the square frame is arranged on one face of the filter screen, and a dismounting plate is fixedly connected to the upper end face of the rubber sealing plate. And two fixing plates fixedly connected with the square box through bolts are fixedly connected to the two sides of the dismounting plate correspondingly, and a first mounting cover is fixedly connected to the front end face of the square box. According to the fluorine-lined ball valve, the filter screen can be detached and cleaned under the condition that an external pipeline does not need to be detached, and the fluorine-lined ball valve is practical.

The electric kettle comprises a kettle body, a kettle cover and a steam pipe, the kettle body is provided with a spout and a handle, the steam pipe comprises a first arc-shaped pipe section and a second pipe section which are communicated, the first arc-shaped pipe section is installed in the kettle body and close to an opening in the top of the kettle body, and the upper end of the second pipe section is connected with the first arc-shaped pipe section. The lower end of the second pipe section extends to the bottom of the kettle body; the kettle body is provided with a temperature control switch which senses the temperature of steam flowing out of the second pipe section. The first arc-shaped pipe section is provided with a steam inlet, and the steam inlet and the spout are located on the same side of the kettle body. The steam pipe is used as the combination of the first arc-shaped pipe section and the second pipe section, when the electric kettle inclines or topples over, scalding hot water cannot flow out of the steam pipe in a large amount instantly, the scalding hot water is prevented from flowing out of the steam pipe in a large amount, a user is prevented from being hurt, the bottom of the kettle body is prevented from being soaked by a large amount of water, and electric short circuit and electric shock are avoided. And the safety is improved.

This invention discloses a flooded water-gas separation system. The system includes a blowout preventer installed at the borehole opening to seal the borehole opening and prevent water and gas from entering the roadway. A mixing discharge pipe is connected to the sidewall of the borehole, and the outlet of the mixing discharge pipe is connected to the water-gas separation device. The mixing discharge pipe introduces the water and gas mixture into the water-gas separation device, which separates the mixture into water and gas. The water-gas separation device includes a vertically arranged straight pipe, the upper part of which is connected to an exhaust pipe, the middle part to the outlet of the mixing discharge pipe, and the lower part extending below the water surface. This invention can effectively separate water and gas when encountering a water-gas mixture during hydrogeological drilling in a coal mine track roadway.

The utility model provides a water stop core convenient for pipeline maintenance and a water valve with the water stop core, which can be used for dismounting a water valve under the condition that a water gate is not closed, improving the convenience of dismounting and maintaining the water valve and being simple and convenient in the dismounting process. Comprising a connecting pipe, a water outlet seat arranged on the connecting pipe, a valve seat arranged between the connecting pipe and the water outlet seat, and a water outlet hole formed in the valve seat. The valve clack is movably arranged on the valve seat and located in the water outlet hole; the moving rod is movably arranged on the valve seat and located in the water outlet hole; one end of the moving rod is connected with the valve clack, and the other end of the moving rod is located in the water outlet seat; the driving piece is arranged between the moving rod and an external water inlet pipe; a water passing gap is formed between the valve clack and the connecting pipe and a water passing gap is formed between the moving rod and the valve seat.

The invention relates to a strong permeable stratum shield gushing real-time monitoring and evaluating system, which is characterized by comprising a state monitoring device, a real-time monitoring device and a real-time evaluation device, the water pressure monitoring device is used for monitoring the segmented water pressure of the spiral conveyor in real time; and the water flow monitoring device is used for monitoring the segmented water flow of the spiral conveyor in real time. According to the invention, visualization of soil pressure balance shield muck transportation is creatively realized, real-time monitoring of water pressure and water flow in the screw conveyor can be realized, the risk of gushing of the screw conveyor can be accurately judged, and a real-time monitoring means and an evaluation method for shield gushing of a strong permeable stratum are provided.

This invention relates to the field of desulfurization technology for reclaimed rubber, specifically a desulfurization treatment device and method for waste tire reclaimed rubber, comprising: a treatment tank, on which a gas guide pipe is installed, the gas guide pipe having an "L"-shaped structure; a support arm, connected to the gas guide pipe, the support arm having multiple pressure relief ports equidistantly arranged on one side facing the bottom of the treatment tank; a pressure sensing component, connected to the gas guide pipe, the pressure sensing component being able to drive the support arm toward or away from the bottom of the treatment tank according to the pressure in the gas guide pipe; a guide plate, disposed in the treatment tank and cooperating with the pressure relief ports, enabling the gas and liquid in the treatment tank to rotate; and a linkage component, connecting the pressure sensing component and the guide plate, the linkage component being able to drive the guide plate to rotate to change its deflection angle when the pressure in the gas guide pipe changes, thereby increasing the retention time of the waste gas in the purification liquid and improving the treatment effect.

The present invention relates to a blowout prevention casing milling and salvage drilling tool and salvage method for a protruding coal seam in a coal mine. It comprises: a casing milling and salvage drill rod, the front end of which is used to install a casing milling and salvage drill bit, and the rear end is connected to a rod body, and the rod body is connected to a water toilet; a blowout prevention box, which is sleeved at the connection between the casing milling and salvage drill rod and the water toilet, and comprises a box body and a plug plate, the box body is connected to a negative pressure pipe, and the connection position of the negative pressure pipeline and the box body is located on the side of the plug plate close to the casing milling and salvage drill bit; a blowout prevention one-way valve, which is used to connect the end of the accident drilling tool in the rod body, and its inlet is connected to the water toilet, and its outlet is connected to the annulus between the casing milling and salvage drill rod and the accident drilling tool. The present invention not only realizes the sealing of the gas outflow channel during the casing milling and salvage process, but also realizes the gas extraction and pressure relief in the casing milling and salvage drilling tool, which can effectively improve the safety of the casing milling and salvage accident handling of the protruding coal seam and ensure the personal safety of the operators.

The invention discloses mine stone screening equipment which comprises a fixing structure, a screening structure and a dust removal structure, the screening structure is fixedly connected to the inner side surface of the fixing structure, the dust removal structure is fixedly connected to the outer side surface of the fixing structure, and the fixing structure comprises a feeding unit, a door closing unit and a door opening and closing unit. The closing door unit is inserted into the top surface of the feeding unit, the opening and closing door unit is fixedly connected to the outer side surface of the feeding unit, and the screening structure comprises a screening unit, a supporting unit and a motor unit. According to the mine stone screening equipment, the funnel is arranged, clear water can be poured into the water tank through the water inlet pipe, the exhaust fan is arranged on the inner side of the dust suction pipe, dust generated in the device shell is pumped out through the dust suction pipe, the water tank is used for bearing the clear water and can filter the dust, and sewage generated after the clear water is filtered can be discharged through the blow-off pipe; the dust filter can effectively filter dust, and has the advantages of being high in practicability and capable of preventing dust leakage.

The invention discloses a method for remotely exploring and draining accumulated water in a goaf, which relates to the field of underground coal mine drilling and comprises the following steps of: constructing a directional exploring and draining drill hole from a working face to the goaf in a forward crossing manner by using a directional drilling machine; the directional water exploration and drainage drill hole firstly penetrates downwards to a stable sandstone layer, then extends along the stable sandstone layer along the bedding layer, and finally extends to a goaf at an elevation angle; after construction is completed, accumulated water in the goaf is drained through potential energy difference. The method has the advantages that the accuracy and safety of water exploration and drainage in the goaf are improved, and the overall production efficiency of a coal mine is improved.

The basement drainage structure comprises a drainage seat and a sewer pipe, an end cover is movably connected in the drainage seat in a sleeved mode, a grid net and a filter plate are fixedly connected in the end cover in a sleeved mode, movable grooves are formed in the inner walls of the two sides, close to the upper end, of the drainage seat, tooth blocks are slidably connected in the two movable grooves in a sleeved mode, and the tooth blocks are connected with the drainage seat in a sleeved mode. Clamping grooves are formed in the two sides of the end cover, one end of each tooth block is movably connected with the corresponding clamping groove in a sleeved mode, the grid net is arranged above the filter plate, the grid net is formed by welding a plurality of criss-cross reinforcing steel bars, rotating rods are rotationally connected into the two movable grooves in a sleeved mode, and gears are fixedly connected to the lower ends of the two rotating rods in a sleeved mode. The two gears are engaged with the two gear blocks correspondingly, and rotating wheels are rotationally arranged on the two sides of the upper end face of the drainage base correspondingly. According to the basement drainage structure, large sundries can be filtered, meanwhile, the filter plate is protected, the service life of the filter plate is prolonged, and practicability is achieved.

This utility model provides a sorting device for water chestnut processing, belonging to the field of agricultural crop processing technology. The device has a simple and ingenious structure, is easy to install, and achieves good sorting results. The filling hopper is fixed on a support frame, and a uniform material plate is slidably installed below the outlet of the filling hopper. The uniform material plate is inclined. Both the conveying component and the sorting component are fixedly installed. The feeding end of the conveying component is connected below the discharging end of the uniform material plate, and the feeding end of the sorting component is connected below the discharging end of the conveying component. Sorting holes are opened on the feeding belt of the sorting component. Multiple sorting components are arranged sequentially along the feeding direction, with the hole diameter of each component increasing progressively. The feeding end receives the previous discharging end. This device has a simple structure, is easy to install, has a large sorting capacity, and can quickly sort water chestnuts. The progressively larger sorting holes allow for precise, step-by-step sorting of water chestnuts, resulting in excellent sorting performance.

The utility model relates to a detachable unearthed gushing prevention device which comprises an upper gate, a lower gate, a slag discharging bin and a detachable partition plate, the top of the slag discharging bin is an inclined plane, and the angle of the inclined plane corresponds to the inclination angle of a screw conveyor body; the upper gate is slidably opened and closed at the top of the deslagging bin; the lower gate is slidably opened and closed at the bottom of the deslagging bin. The device has the advantages that the device is easy to manufacture and stable in structure, gushing is effectively prevented, the stability of ground surface settlement is guaranteed, the construction safety coefficient is improved, the multiple layers of detachable partition plates are arranged in the slag discharging bin in a staggered mode to form the labyrinth structure, impact force generated during gushing of the spiral machine soil outlet can be reduced, and the service life of the spiral machine soil outlet is prolonged. On-site gushing is prevented; the hole without the detachable partition plate is sealed through the sealing auxiliary component matched with the internal component of the detachable partition plate, the sealing ring is arranged to ensure that the hole of the deslagging bin is sealed, and muck or water is prevented from being discharged from the hole in one side of the deslagging bin.

The present application discloses a melt filter for replacing filter elements without stopping the machine, comprising a filter bin, an input pipe, an output pipe, and a pair of filter components, wherein the filter component comprises a rotating table, which is rotatably mounted at the bottom of the filter bin, with an upper cavity provided at the top, a lower cavity provided at the bottom, and an annular groove provided on the circumferential side of the middle portion; a plurality of filter elements, the top ends of which are connected to the upper cavity and are connected to the rotating table through a detachable structure; a pick-and-place shell, which is arranged on the side wall of the filter bin, has an open inner end extending into the filter bin, and has a sealing door panel that can be opened and closed movably mounted in the middle; a partition device, which is used to form a sealed space with the annular groove corresponding to the position of the filter bin and the pick-and-place shell; a driving device, which is used to control the synchronous movement of the detachable structure and the partition device. In daily use, by adopting the above technical scheme, the driving device drives the partition device and the detachable structure to move, so that the part of the annular groove where the filter element to be removed is locked is isolated from the inner cavity of the filter bin, and the fixation of the filter element and the annular groove is released, so that the filter element can be replaced without stopping the machine.

The utility model provides a fireproof check valve. The fireproof check valve comprises a mounting seat, a valve seat, a valve plate, a limiting piece and a hot melting structure. And the valve seat is mounted in the mounting seat and is provided with a smoke outlet. The valve plate is installed in the installation base in an overturning mode, and the smoke outlet is sealed and covered through gravity or a reset mechanism, so that a one-way structure is formed. And the limiting piece is mounted in the mounting seat or the valve seat and is positioned between the valve plate and the smoke exhaust pipeline. The hot melting structure is installed close to the limiting piece and limits the limiting piece and the valve block to be staggered. The hot melting structure is melted or softened at the preset temperature, the limiting effect on the limiting piece is relieved, and the limiting piece moves to the back face of the valve block under the action of deformation recovery, self weight or external force action mechanisms and abuts against the valve block. According to the check valve provided by the utility model, the limiting effect on the limiting piece can be relieved under the condition that a fire disaster occurs, and the limiting piece abuts against the valve plate, so that smoke can be prevented from gushing out of the smoke outlet, and the check effect and the safety of the check valve are improved.

The invention relates to the field of water resource purification, in particular to self-cleaning low-emission water purification equipment. The invention provides a self-cleaning low-emission water purification device. The self-cleaning low-emission water purification equipment comprises a water purification frame, a ceramic membrane water purification assembly, a water outlet pipe, a backwashing assembly, a water inlet, a self-cleaning mechanism, a silt removal mechanism and the like. Power is provided by the driving motor, so that the mounting frame can automatically move, and in the automatic movement process of the mounting frame, the cleaning roller can automatically rotate by virtue of the matching effect of the gear and the rack frame, so that the soft cleaning convex block is used for scraping and cleaning a filtering element of the ceramic membrane water purification assembly; the filter element of the ceramic membrane water purification assembly is prevented from being attached with impurities and affecting the water purification effect, the automatic cleaning effect is achieved, and the soft cleaning protruding blocks can also prevent the filter element of the ceramic membrane water purification assembly from being damaged in the cleaning process.

The invention relates to the technical field of filling materials, and discloses a mine filling inorganic low-temperature foaming material and a preparation method thereof.The mine filling inorganic low-temperature foaming material is prepared from a material A, a material B and a material C, the material A is composed of 600-800 parts of inorganic acid, 200-300 parts of lime, 50-150 parts of triethanolamine and 10-20 parts of coagulant, and the material A plays a role in curing; the material B is a foaming material and is obtained by mixing 90-100 parts by weight of resin, 6-10 parts by weight of a flame retardant, 5-15 parts by weight of a foaming agent, 1-5 parts by weight of a stabilizer, 1-15 parts by weight of a cosolvent, 2-16 parts by weight of an antistatic agent and 10-30 parts by weight of a plasticizer and stirring and reacting at 30-50 DEG C for 0.5-2 hours. The filling material is used for filling holes, cracks and air leakage channels of coal rocks in a top-coal-caving area and plugging air leakage of a working face and a goaf, and gas in the goaf can be prevented from gushing out.

The utility model relates to the technical field of machining, in particular to burr removing equipment which comprises a movable base and an equipment body and further comprises a purification assembly, and the purification assembly comprises a water tank, a leading-out pipeline, a fan, an output pipe, an input pipe, a mounting frame, a filter screen, an activated carbon plate and a connecting component. The output pipe is connected with the output end of the fan; the input pipe is connected with the water tank; the mounting frame is connected with the input pipe through a connecting component; the filter screen is fixedly connected with the mounting frame; waste gas generated by machining of the equipment body is purified and discharged, a large amount of waste gas is prevented from gushing out when an operator opens the equipment body during discharging, and then the situation that the human body inhales the waste gas and harms human health is prevented.

The invention discloses a control method and system of cooking equipment, the cooking equipment and a storage medium. The control method comprises the following steps: acquiring a cooking mode of the cooking equipment; and performing oil smoke and / or water vapor discharge treatment on the cooking equipment according to the cooking mode. The cooking equipment is subjected to oil fume and / or water vapor discharge treatment according to the cooking mode of the cooking equipment, so that the oil fume and / or water vapor in the cavity of the cooking equipment can be quickly discharged in different cooking modes, and the oil fume and / or water vapor in the cavity of the cooking equipment are / is reduced; the cooking fume and / or water vapor are / is prevented from gushing out of the pavement when the door body of the cooking equipment is opened after cooking is completed, and the user experience is improved.

The present invention relates to the technical field of tunnel construction, and provides a rapid plugging and supporting device for sudden mud and water gushing, comprising a base and a flexible plate, the two ends of a rope member are respectively connected to the two sides of the flexible plate, the inner side of the flexible plate is fixedly connected with a mounting frame, one end of a resetting telescopic member is rotatably connected to the mounting frame, and the other end of the resetting telescopic member is rotatably connected to the edge of the flexible plate; the flexible plate is installed on a lifting seat, and a second rotating driving element for rotating and driving a retractable roller is installed on the lifting seat, and the lifting seat is connected to the base through a lifting mechanism; sealing plates are arranged at both ends of the flexible plate, and a sealing plate driving mechanism for linearly driving the sealing plate is installed on the lifting seat. Through the arrangement of the flexible plate, the rope member and the retractable roller, when the present invention is in use, the two sides of the flexible plate are in close contact with the side walls of the tunnel, and the water flow is blocked above the flexible plate, effectively preventing the water flow from gushing out.

The invention relates to a condensation pipe, a condensation reflux reaction device and a method for feeding materials above the condensation pipe. The condensation pipe comprises an outer pipe and an inner pipe, the inner pipe penetrates through the outer pipe, the inner pipe is a Tesla valve pipeline, and the downstream direction of the Tesla valve pipeline is opposite to the steam flowing direction of the condensation pipe; the outer pipe is provided with a liquid inlet and a liquid outlet, and a condensing agent channel is formed in the space between the outer pipe and the inner pipe. Through the reversely arranged Tesla valve pipeline and the condensation pipe, the condensation effect can be ensured, liquid splashing or backflow solvent spewing after feeding is prevented, and meanwhile the problem of inaccurate feeding caused by gasification-condensation circulation of part of raw materials in the condensation pipe due to heat exchange in the feeding process of the condensation pipe is solved. By means of the condensation pipe, the feeding operation in the backflow experiment process can be simplified, and safety and accuracy can be both considered when feeding is conducted above the condensation pipe.