163results about How to "Guaranteed pollution" patented technology

The present invention relates to an energy-saving window or door with bidirectional heat-preserving air change and air purification functions. The energy-saving window or door can realize bidirectional heat-preserving air change when being closed, not only discharging the polluted indoor air but also bringing the purified outdoor air into the room, and moreover, in the process of air change, an air heat exchanger arranged in a window frame or a door frame can carry out the sufficient redemption of heat and humidity between the indoor air and the air brought in from the outside in order to ensure that the indoor temperature and humidity cannot be changed. In addition, if flu or SARS is rampant, the energy-saving window or door can be switched from the bidirectional air change mode to an indoor air circulation mode, the indoor air circulation mode utilizes titan apatite and luminous optic semiconductor catalyzer loaded in a photocatalytic sterilization unit arranged in a third air chute to actively and dynamically sterilize and purify the indoor air, the sterilization rate can reach 99.9 percent, and thereby, the health of the human body can be protected. Furthermore, the energy-saving window or door can use the power provided by a photovoltaic cell, thus realizing energy saving and emission reduction.

The invention discloses a mobile fermentation method for producing a concentrated fertilizer through humic acid. The mobile fermentation method comprises the following steps in sequence: adding a base fermentation substance in a dried material mixer and mixing; puffing the mixed material through a twin-screw extruding and puffing machine; conveying the puffed material to a wet material mixer; adding yellow water to cool to 30-35 DEG C; inoculating a mixed bacteria liquid, and fully mixing; filling the mixture into a ventilating film fermenting bag, then packing and sealing; and fermenting for 5 to 10 days in a fermentation chamber at constant temperature, thus obtaining the concentrated fertilizer, wherein the base fermentation substance is prepared by uniformly mixing 50 to 60 parts by weight of fulvic acid, 10 to 20 parts by weight of vinasse, 10 to 20 parts by weight of powdered maize straw, 5 to 10 by weight parts of urea, 1 to 2 parts by weight of diammonium hydrogen phosphate, and 5 to 10 parts by weight of potassium chloride; in the base fermentation substance, the moisture content is 20 to 30wt%, and 10 to 20 parts of yellow water by weight is added; and the mixed bacteria liquid comprises the bacteria liquid of trichoderma harzianum, wet fiber monospora, bacillus latersprorus, bacillus megatherium, azotobacter chroococcum, bacillus mucilaginosus and lactobacillus plantarum.

The invention discloses a multi-station top-suction type exhaust and dust processing device with a function of automatic station conversion, which comprises a rail arranged on a support of a workshop, and a traveling crane driven by a power mechanism to travel on the rail. A plurality of top-suction type dust hoods corresponding to pollution sources are arranged on the traveling crane, the upper end of each dust hood is communicated with a venting pipe and a controlling valve, the lower end of each dust hood is provided with an exhaust inlet hole, the venting pipe of each dust hood is parallelly connected onto a main air pipe, the main air pipe is communicated with a bag filter system arranged outside the workshop, a photoelectric switch is arranged on the edge of an opening at the lower end of each dust hood, a limit switch which determines the stopping position of the traveling crane is arranged on the rail, and the limit switch, the photoelectric switches, a power mechanism, the controlling valve and a bag filter are all connected with a PLC (programmable logic controller) via cables. The multi-station top-suction type exhaust and dust processing device with the function of automatic station conversion solves the problem that amorphous dust in the workshop with serious dust pollution is difficult to gather and the like, is capable of running stably over a long period of time with enhanced processing effect.

The invention discloses an industrial hazardous waste incineration system comprising a rotary kiln, a waste liquor furnace, a membrane wall-type drop-tube furnace, a membrane wall-type waste heat boiler, a half-dry quench tower, a dry reactor, a bag-type dust collector, a draught fan, a spray tower, an absorption tower, a natural gas pipeline, a low-pressure steam pipeline, a compressed air pipeline and a chimney. A secondary combustion chamber and a pre-cooling chamber are arranged between the waste liquor furnace and the membrane wall-type drop-tube furnace. The industrial hazardous waste incineration system is simple in structure, convenient to operate, low in cost, long in service life, effective in sufficiently burning the hazardous waste, low in hazard, high in working efficiency, capable of simultaneously treating solid and liquid independently, strong in university and lower in cost.

The invention relates to an electronic cigarette comprising a cartridge tube, an atomizer and a cartridge fixing piece used for connecting the cartridge tube to the atomizer detachably. A cartridge tube body can be matched with the cartridge fixing piece in a manner of shifting between a preinstallation position and an installation position, when the cartridge tube body is located at the preinstallation position, a sealing element on the cartridge tube is spaced from the a puncture piece by certain distance or butted against the puncture piece to ensure that a first sealing portion is not punctured, and cigarette liquid in the cartridge tube is ensured not to be contaminated by the outside before smoking. When the cartridge tube body is located at the installation position, the cartridge tube is installed in place completely, a second sealing portion is punctured, a liquid storage cavity is communicated with a liquid storage chamber to allow the cigarette liquid in the liquid storage chamber to flow into the liquid storage chamber, and a user can begin to start the electronic cigarette for smoking.

The invention discloses a method for preparing a surface molded shell cast by a high-temperature titanium alloy melting mold, and relates to a method for preparing a surface molded shell. The method solves the problems that the molded shell prepared by the conventional method has high cost during de-waxing and easily pollutes the environment. The method comprises the following steps: 1, preparing mixed adhesive; 2, preparing surface slurry; 3, coating and hanging, scattering sand and drying to obtain the surface molded shell. The molded shell prepared by the method can be used for steam de-waxing, has low de-waxing cost, and is environmentally-friendly and easy to operate.

The invention provides a preparation method for hard hollow capsules from enteric plant cellulose derivatives and belongs to the technical field of pharmaceutic adjuvants. Plant cellulose is prepared from plant derivatives such as pine, purified cotton and the like. Colorless and transparent hard hollow capsules, colored hard hollow capsules, shading hard hollow capsules and the like can be prepared though the preparation method. The preparation method comprises steps of mixing of plant cellulose, surfactants, coagulant aids, coloring agents and water, molding, drying, coating and the like. The plant cellulose hard hollow capsules are advantaged by stable performances, low water content, environmental protection and safety. The plant cellulose hard hollow capsules can be filled by all kinds of contents.

The invention discloses a method and a system for reducing temperature locally under a coal mine shaft and belongs to the field of temperature reduction under coal mine shafts. The whole system consists of a ground part and an underground part, wherein the ground part consists of an air compressor, a cooler, an oil and water separator, a voltage stabilizer, an evaporation condenser and a drying tower; and the underground part consists of a filter, a temperature regulation valve, a heat regenerator, a high-pressure water separator, a turbine cooler, a fan, a gas mixing regulation valve and an air diffuser. Dried air provided by the ground part is filtered and is subjected to temperature regulation and then enters the turbine cooler, and then exchanges heat with the dried air in the heat generator at the outlet of a turbine, and liquid water is separated from the air flow cooled by the heat generator in a high-pressure water separator, and then the cooled air flow enters the turbine and is expanded and subjected to heat content and temperature reduction in the turbine, and then is returned and mixed once, and conveyed to the surrounding of miners through the fan and the air diffuser. The system for reducing the temperature locally under the shaft has the advantages of capacity of stably running for a long term, obvious temperature reduction effect, low energy consumption, small volume and the like.

The invention provides an air-type solar hot-water fresh air system oriented to passive houses. The air-type solar hot-water fresh air system comprises a solar thermal collector, a hot water tank, a water tank air inlet pipe, a water tank air outlet pipe, a first heat exchange coiler, a second heat exchange coiler, a first indoor air inlet pipe, a second indoor air inlet pipe and a total heat exchanger. The outlet end of the solar thermal collector is connected with the gas inlet end of the hot water tank through the water tank air inlet pipe; the gas outlet end of the hot water tank is connected with the inlet end of the solar thermal collector through the water tank air outlet pipe; the liquid outlet end of the hot water tank is connected with the inlet ends of the first heat exchange coiler and the second heat exchange coiler; the outlet ends of the first heat exchange coiler and the second heat exchange coiler are connected with the liquid inlet end of the hot water tank; the first heat exchange coiler is arranged in the first indoor air inlet pipe, and the second heat exchange coiler is arranged in the second indoor air inlet pipe; the first indoor air inlet pipe is connected with the second indoor air inlet pipe through the total heat exchanger. The air-type solar hot-water fresh air system has the advantage that the heat exchange coilers are used for pre-heating fresh air, so that the situation that air entering rooms is clean and pollution free is guaranteed to the greatest extent.

The present method of non-cell corynebacterium parvum (NCP) preparation includes the following steps: continuous 2-4 times of passage of corynebacterium parvum (CP) working seed batch strain, then inoculating in large flask or nutrient tank, culturing for 5-7 days in proper culture medium, collecting thallus having no heterobacteria pollution, heating, boiling and inactivating to obtain bacetrialsolution, breaking bacterial solution, centrifugation and collecting precipitate, washing to obtain suspension, heating said suspension and sterilizing so as to obtain the invented NCP. Said invention also provides its application function.

The invention provides a variable-temperature test system and test method for VOC (volatile organic compound) diffusion performance of automobile parts and materials. According to the method, a one-cubic-meter environmental chamber is adopted for closed state test, a temperature influence result can be obtained through one-time test by continuously varying test temperature of the same test sample, and the VOC diffusion performance of a material at different temperatures can be represented very well. In order to cooperate with the closed variable-temperature dynamic test process, a traditional environmental chamber test system is improved and innovated, and a material surface temperature test technology, a closed chamber sampling and air supplementing system and the like are added.

The invention relates to a kitchen ventilator control system based on gesture recognition, and the system comprises a central control system, a gesture collection and recognition system, a control result indication module, and a motor drive module. The system is characterized in that the gesture collection and recognition system consists of a microprocessor, a gesture sensor based on the technology of computer vision, and a wireless signal transmitting module; the gesture sensor enables a gesture signal to be transmitted to the microprocessor; the microprocessor converts a recognized gesture signal into a corresponding control instruction; the wireless signal transmitting module enables the control instruction transmitted by the microprocessor to be transmitted to the central control system in a wireless manner; the central control system consists of a microcontroller and a wireless signal receiving module; the wireless signal receiving module receives the control instruction transmitted by the gesture collection and recognition system; the microcontroller enables the control instruction to be converted into a control signal, and transmits the control signal to the motor drive module for controlling the rotation of a kitchen ventilator motor. The system is convenient, enables a user to be able to remotely control the kitchen ventilator, and can guarantee that the panel of the kitchen ventilator is ordered and smooth and is easy to clean.

The invention provides a porous light-weight carbon-based biological carrier. The porous light-weight carbon-based biological carrier is a foamed coke powder / polyvinyl alcohol gel mixture which is prepared by performing crosslinking reaction on coke powder, a polyvinyl alcohol solution, a foaming agent solution and a crosslinking agent solution used as raw materials at normal temperature, wherein the weight percent concentration of the polyvinyl alcohol solution is 5-15%; the weight percent concentration of the foaming agent solution is 0.2-2%; the weight percent concentration of the crosslinking agent solution is 0.5-1.5%; the weight ratio of the polyvinyl alcohol water solution to the coke powder is (10-25):1; the weight ratio of the polyvinyl alcohol water solution to the foaming agent solution is (15-45):1; and the weight ratio of the polyvinyl alcohol water solution to the crosslinking agent solution is (20-50):1. The biological carrier is high in film-forming speed and microbial capacity, provides a proper nutrient source for microorganisms and has no harm to the environment. Meanwhile, the invention also provides a preparation method of the porous light-weight carbon-based biological carrier. The preparation method has the advantages of simple process, less required equipment and low preparation cost.

This invention relates to a positive material of Li ionic batteries characterizing that it is a ball shape high tap density and high purity oxidized Ni Mn Co and Li in the molecular formula of Li(NiCoMn)1 / 3O2, the purity of 99.9-99.95% and a ball-shape secondary crystal composed of small grains, the mean diameter is 5-25mum, the tap density is greater than or equal to 2.5g / cu cm.

The invention discloses a preparation method of myriophyllum elatinoides silage feed. The method comprises the following steps of A, harvesting myriophyllum elatinoides; B, dewatering the myriophyllum elatinoides: dewatering the myriophyllum elatinoides until the water content is between 50 percent to 60 percent; C, mixing materials: mixing corn powder accounting for 10 percent to 20 percent of the total weight of the silage feed, a lactobacillus solution (containing plant lactobacilli and saccharomyces cerevisiae) accounting for 1.5 percent to 3.0 percent of the total weight of the silage feed and the dewatered myriophyllum elatinoides; D, performing bagging and sealing: encapsulating the silage feed by using an efficient respiratory membrane solid-state fermentation bags, and ensuring the oxygen-free and sundry-bacteria-contamination-free fermentation environment. The myriophyllum elatinoides with capability of efficiently governing the nitrogen and phosphorus pollution water bodies is used as main raw materials for preparing the silage feed, so that the gastrointestinal tract functions of animals can be improved; the intestinal flora balance is maintained; the effect of improving the immune system functions of poultry and livestock animals is finally achieved; the resource circulation utilization of nitrogen and phosphorus in an agroecological system is promoted; meanwhile, the popularization of a myriophyllum elatinoides ecological pollution control technology is greatly promoted.

The invention discloses a medicinal composition. The medicinal composition consists of the following ingredients in percentage by weight: 1 to 5 percent of amlodipine and pharmaceutically acceptable salt thereof, 20 to 50 percent of valsartan, 1 to 10 percent of hydrochlorothiazide, 20 to 50 percent of filling agent, 8 to 24 percent of disintegrating agent, 0.01 to 0.06 percent of adhesive 1, 0.01 to 0.2 percent of adhesive 2, 0.3 to 2 percent of flow aid and 0.5 to 2.5 percent of lubricating agent. The medicinal composition has the advantages of simple preparation process, low equipment requirement, simplicity in operation and small dust pollution, guarantees the quality of medicines and contributes to industrialized production.

The invention relates to a cooling device for engine oil and / or transmission oil, particularly in an internal combustion engine, with an oil cooler which is arranged in an oil pan and through which a coolant flows. The oil cooler is formed by a plate heat exchanger (3) with coolant-carrying and oil-carrying plate intermediate spaces (5, 6). At least some of the oil-carrying plate intermediate spaces (6) open into the oil pan (2) in such a way the oil flows out of the oil pan directly via the opening (24) into the oil-carrying plate intermediate spaces (6).

The invention discloses a method for modifying ultrafiltration membrances through metal cation cross-linked graphene oxide nanosheets, relates to ultrafiltration membrane modifying methods and belongs to the field of environmental water treatment. The method comprises the following steps of dissolving the graphene oxide nanosheets into solvent, and then adding in cationic cross-linking agent; after the graphene oxide nanosheets, the solvent and the cationic cross-linking agent are uniformly mixed, layer by layer packing and loading the graphene oxide nanosheets in the solution onto the surface of the ultrafiltration membranes. According to the method for modifying the ultrafiltration membrances through the metal cation cross-linking graphene oxide nanosheets, the graphene oxide nanosheets pre-deposited on the surface of the ultrafiltration membranes can retain pollutants through size selecting effects to reduce membrane pollution, to prolong the service life of the membranes and improve the water treatment efficiency. The method for modifying the ultrafiltration membrances through the metal cation cross-linking graphene oxide nanosheets is simple in operation, applicable to large-scale application and easy to popularize.

The invention discloses a movable hanger operating platform which structurally comprises a truss lower, two pairs of longitudinally symmetrical connecting rod parts are welded on the truss base plate in a transversely symmetrical mode, a monorail trolley is arranged at the upper end of each connecting rod part and forms a kinematic pair with the a repair rail at the bottom of the lower bridge face of a steel trussed beam, the length*width specification of the truss base plate is 16.5m*8m, riffled steel plates are laid on the top face of the truss base plate, and guardrails are arranged on the periphery of the top face of the truss base plate. The invention further discloses manufacturing, installing, using and removing methods of the movable hanger operating platform. The movable hanger operating platform has the advantages of being low in cost, easy to manufacture, convenient to operate and capable of being recycled, and not only overcoming a number of defects of the prior art and solving the problem that construction is inconvenient in an assembling process of the steel trussed beam, but also ensuring that no potential safety hazards of objects falling from high altitude exist and the ambient environment is not polluted, so that the technical purposes of being safe and reliable, reducing cost, shortening construction periods and improving efficiency are achieved.

The invention discloses a crack-resistant plasterboard. The crack-resistant plasterboard comprises, by weight, 12 parts of ore tailings, 42 parts of quicklime, 3 parts of iron oxide powder, 4 parts of fly ash, 14 parts of alumina silicate fibers, 10 parts of a silicon filling material, 4 parts of slag, 6 parts of a polymer emulsion, 6 parts of a calcium oxide expanding agent and 95 parts of water. The crack-resistant plasterboard avoids plasterboard cracking, does not contain formaldehyde, has no pollution, guarantees plasterboard strength and hardness and has good environmental protection functions.

The invention discloses a thawing machine for raw shrimp type aquatic products. The thawing machine structurally comprises two water trough cover plates, a protective transverse rod, a ventilating straight pipe, a heater, a control knob, an operation controller, a transmission motor, a caterpillar band limiting baffle, a transmission caterpillar band, a material outlet, a dehydrating breather, waterproof supporting columns, a material discharging side baffle, a supporting limiting block and case supporting vertical columns, wherein the upper ends of the two water trough cover plates are weldedat the lower end of the protective transverse rod. The thawing machine for the raw shrimp type aquatic products has the beneficial effects that the dehydrating breather is additionally arranged on equipment; when the equipment completes the thawing of the raw shrimp type aquatic products, and during the transportation of the raw shrimp type aquatic products, produced water can be sucked out immediately and discharged in time, so that water of the products are guaranteed, and pollution to the surrounding environment remains; the service life of the equipment is prolonged, and sanitation of theaquatic products is greatly guaranteed.

The invention discloses an integrated control system and control method of formaldehyde-free decoration. The system is composed of a decoration material data module, a decoration material detection module, a decoration process monitoring module, and a data analysis center. The decoration material data module is used for storing formaldehyde content data of a decoration material; the decoration material detection module is used for carrying out formaldehyde content detection on the decoration material; the decoration process monitoring module is used for monitoring a formaldehyde content in air at a decoration scene; and the data analysis center is used for receiving data information transmitted by all modules and analyzing whether a formaldehyde content exceeding phenomenon occurs. The data analysis center carrying out signal connection with the decoration material data module, the decoration material detection module, and the decoration process monitoring module is used for analyzing whether a phenomenon of exceeding a standard by the formaldehyde content exists in the data information transmitted by all modules by the data analysis center. Therefore, selection control of decoration materials before decoration as well as formaldehyde monitoring during the decoration process and after decoration can be realized.

The invention discloses an oil leakage prevention heavy load terrace structure resisting deformation of a foundation. The oil leakage prevention heavy load terrace structure resisting the deformation of the foundation comprises an oil leakage prevention terrace formed by a macadam cushion layer, a concrete cushion layer, a mortar layer and a reinforced concrete surface layer all of which are arranged in sequence on the rammed earth foundation. The oil leakage prevention heavy load terrace structure resisting the deformation of the foundation is characterized in that a diversion layer and an HDPE geomembrane layer are arranged between the concrete cushion layer and the mortar layer, oil discharging trenches are formed in the periphery of the structures, above the geomembrane layer, of the terrace, and the diversion layer is diversion net sheets of the geomembrane which has the vertical composite water seepage and inverted filtering functions. Compared with the prior art, the oil leakage prevention heavy load terrace structure resisting the deformation of the foundation has the advantages of being high in leakage resistance level, simple in structure, convenient to construct, short in cycle, capable of effectively avoiding leakage prevention blind spots, controlling leakage of oil contaminations and preventing the oil contaminations from contaminating water and soil under the foundation, and especially suitable for heavy load oil leakage prevention terraces with large difference deformation of the foundation.

The invention relates to a 3D (three-dimension) printer for printing a vitreous body and a printing method. The 3D printer is composed of a frame, a printing silo and a control cooling silo; the printing silo is connected with the control cooling silo and arranged in the frame; the inner part of the printing silo is provided with a delivering mechanism, a nozzle printing mechanism, a sensing heating device, a printing bottom plate, a cooling medium guide flow pipe and a three-dimensional movement mechanism; the inner part of the control cooling silo is provided with a cooling device, a control system and a power supply. By applying the 3D printer for printing the vitreous body and the printing method, the selection scale of the printing raw material is enlarged; the sensing heating method has the significant advantages of high working efficiency, high energy utilization rate, quick temperature rise, control easiness, small equipment volume, pollution free and others; besides, the printer and the printing device have the advantages of simple and reliable structure, high automatic degree, control easiness, strong practicability and others.

The invention relates to the field of spraying equipment, in particular to a coating device for a coating special for an aluminum alloy hub. The coating device comprises a machine body, a spraying cavity in the machine body and an operating cavity arranged in the right side end wall of the machine body, wherein the bottom of the operating cavity communicates with the spraying cavity, a sliding cavity with an upward opening is formed in the bottom wall of the spraying cavity, a sliding frame is arranged in the sliding cavity in a left-and-right manner, the sliding frame drives the sliding frame to move left and right through a winding device arranged in the sliding frame. According to the coating device special for the aluminum alloy hub, the automatic spraying of the hub can be realized, the spraying space is sealed during spraying at the same time, so that it is guaranteed that air is prevented from being polluted by spraying substances, and the health of workers is harmed, the equipment adopts annular progressive spraying at the same time, so that the spraying is more uniform, the flatness of a paint surface is higher, and production and popularization are facilitated.

The invention discloses a fully automatic, high-efficiency and high-quality equipment for processing metal mirrors by laser ablation, which includes an operation platform and a laser, and the operation platform is equipped with Z-axis, X-axis, Y-axis, A-axis and C-axis The five-axis linkage structure of the axis, the Z-axis is equipped with a Z-axis motor and a cavity, the Z-axis, the Z-axis motor and the cavity are all set on the X-axis, and the cavity is equipped with a camera and an automatic focus device, a high-power laser output head, a low-power laser output head, an optical path switching mirror and a total reflection mirror, the camera is also connected to a scanning galvanometer, and a flat-field lens is arranged below the scanning galvanometer. The Y-axis is provided with an A-axis and a C-axis vertically, the A-axis is provided with a swing structure and an A-axis motor, the A-axis motor is provided with a processing table, and the C-axis is provided with a C-axis motor. The mirror surface processing has good consistency, and the roughness can be controlled freely, and it ensures no pollution, highlighting the advantages of environmental protection.

The invention belongs to semiconductor integrated circuit manufacturing processes, and particularly relates to a method for bonding and debonding a slice applied to a semiconductor manufacturing process. The semiconductor slice and a semiconductor master slice to be bonded are placed in a contained filled with liquid sticky agents, the depth of the liquid in the container needs to be larger than the diameter of the slice and the master slice, and the semiconductor slice is a single-crystal wafer or a multi-crystal wafer or an amorphous wafer made of IV-group materials and III-V-group materials. The semiconductor master slice is a single-crystal wafer or a multi-crystal wafer or an amorphous wafer with the size, the shape and the materials identical to those of the semiconductor slice. Compared with the prior art, the method is lower in material cost, enables materials to be obtained more easily, is stronger in protection on the slice and operators, more easier in technological process, lower in requirement for equipment and higher in operability and practicality, and has the creative and technical advantages. The liquid sticky agents are adopted as the materials of the slice bonding technology, and deionized water or ethyl alcohol is used as the materials in specific examples.

The invention discloses a pediatric medical instrument cleaning device. The device comprises a cleaning box body, a partition plate integrally formed with the cleaning box body is arranged in the lower portion in the cleaning box body. An instrument disinfecting and cleaning box is formed between the partition plate and the cleaning box body; an instrument clamping device, a power assembly and a lifting device are arranged above the partition plate, the instrument clamping device comprises a rotating roller and a support, a rotating shaft is rotationally installed on the support, the rotatingshaft and the power assembly are in connection transmission through a belt, and a plurality of instrument clamping assemblies are evenly distributed on the rotating roller in the circumferential direction. The rotating shaft and the rotating roller are arranged; under the driving of the power assembly, the rotating shaft is driven to rotate, the rotating roller is driven to rotate, the instrumentsclamped on the rotating roller are driven to rotate, under the action of the lifting device, the rotating roller is driven to enter the instrument disinfecting and cleaning box, incomplete cleaning caused by instrument accumulation is avoided, the cleaning effect is effectively improved through dynamic cleaning, and the instruments are ensured to be safe and free of pollution.

The invention discloses a closed intensive pig farm. The closed intensive pig farm is characterized in that the closed intensive pig farm comprises a pig house, a sealed corridor, a material fumigation room, a pig inlet and outlet table, a dead pig outlet and a staff living area, the staff living area is connected with the material fumigation room, and the material fumigation room, the pig house,the pig inlet and outlet table and the dead pig outlet are connected with the sealed corridor. The sealed corridor is a channel used for connecting the staff living area, the pig house, the material fumigation room, the pig inlet and outlet table and the dead pig outlet, is the only channel for people and objects to enter and exit from the pig house, is built, and is used for preventing birds, mice, mosquitoes, flies, other insects and other disease-borne organisms from entering the pig house; and through forward moving of a pig house prevention and control pass, the prevention and control longitudinal depth is increased, multi-layer blocking and resisting of pathogen transmission are achieved, the transmission path of diseases such as African swine fever is better cut off, and animal diseases such as African swine fever are effectively prevented.