32 results about "Wire gauze" patented technology

The invention belongs to the technical field of mining engineering safety, particularly relates to an experimental research method for coal rock impact dynamic disasters of a filling prevention and control working face, and aims to solve the problem that the sudden fracture process of overlying strata is difficult to reproduce in the traditional coal mine impact dynamic disaster research. A PCL material is heated, an asbestosed wire gauze is drawn out, a drop hammer falls in an iron pipe, a two-dimensional similar simulation experiment platform for instantaneous fracture of the overlying hard roof of the coal seam is constructed, gravitational potential energy is converted into impact kinetic energy through impact of falling of the drop hammer, and coal rock stress mutation is induced. The method comprises the following steps: simulating the instantaneous caving condition of a top plate in an overlying strata structural instability state, and capturing the whole process of dynamic interaction of a filling body-coal rock system under a coal rock impact dynamic disaster by combining a sensor and a monitoring system; meanwhile, a filling material is introduced to support the goaf, coal rock bearing pressure experimental data before and after goaf filling are compared, and the protection effect of the filling material on the coal rock under the condition of instantaneous collapse of the overlying roof is studied.

The invention relates to the technical field of sealing oil treatment, and provides a sealing oil regeneration treatment method, a regeneration system and an application method thereof, and the method comprises the following steps: S1, judging whether an oil product is seriously polluted or lightly polluted; s2, when the oil product is seriously polluted, storing the polluted oil product in an oil tank, pre-filtering by adopting a stainless steel wire mesh filter as pre-filtering equipment, inputting the filtered oil product into an automatic slag extractor, and removing part of leaked swelling sizing materials, large-particle mechanical impurities and part of clear water; and S3, inputting the oil product into a vacuum dehydrator for circular dehydration and purification, and then performing circular purification on the oil product. According to the sealing oil regeneration treatment method, the economic benefit is high, the operation cost is remarkably reduced, waste of consumables is fundamentally eradicated, the service life of the consumables is prolonged, and compared with a traditional purification scheme, the annual average consumable cost is greatly reduced.

The utility model discloses a chain bucket elevator for conveying materials generating explosive dust, which comprises an elevator casing formed by sequentially connecting a head casing, a middle casing and a tail casing, and a plurality of explosion venting mechanisms are arranged on the top of the head casing and on one side of the middle casing and the tail casing. The explosion venting mechanism comprises an angle steel flange, a flat steel flange, an explosion venting sheet, a frame body, an asbestosed wire gauze and a steel mesh plate, the flat steel flange is detachably and fixedly connected with the angle steel flange through a plurality of bolt pairs, the flat steel flange is arranged at one end of the frame body, the steel mesh plate is arranged at the other end of the frame body, and the asbestosed wire gauze is arranged on the inner side of the steel mesh plate; compared with the prior art, the explosion venting device has the advantages that the structure is simple, the production cost is low, and the weight is light.

The hot steam conveying hose comprises an inner pipe core, a heat preservation layer, a metal wire mesh layer, a heat insulation layer, an outer pipe core and a corrugated pipe, an electric heating wire is arranged in the inner pipe core, the heat preservation layer is arranged on the outer side of the inner pipe core, the metal wire mesh layer is arranged on the outer side of the heat preservation layer, and the heat insulation layer is arranged on the outer side of the corrugated pipe. The heat insulation layer is arranged outside the metal wire mesh layer, the outer pipe core is arranged on the outer side of the heat insulation layer, the corrugated pipe is connected to the outer pipe core in a sleeved mode, and a stainless steel ring is arranged in the corrugated pipe. The inner pipe core and the outer pipe core enable the hose to be of a double-layer structure, the strength of the hose can be improved, the stainless steel ring can greatly improve the bearing capacity of the hose, the hose is prevented from being crushed, the service life of the hose is prolonged, and then the electric heating wire can be used for heating so that the temperature of steam can be maintained. The heat preservation layer and the heat insulation layer can preserve heat, loss of steam heat energy is reduced, energy is saved, consumption is reduced, and meanwhile the heat insulation layer can achieve the anti-scalding effect.

The invention belongs to the technical field of electromagnetic shielding glass manufacturing, and discloses shielding glass and a preparation method. The preparation method of the shielding glass comprises the following steps: dispensing a PMMA (Polymethyl Methacrylate) plate, covering the PMMA plate with a metal wire mesh, laminating the PMMA plate, carrying out vacuum defoaming, carrying out UV (Ultraviolet) curing and the like. According to the shielding glass, the PMMA plate is selected as the transparent base material, the UV glue is selected as the bonding material, the cohesiveness and light transmission between the transparent base material and the bonding material are improved, and the high-temperature resistance of the shielding glass is improved by modifying the PMMA plate and selecting the proper UV glue and a UV curing process.

The utility model discloses a cable force monitoring device for bridge suspender replacement, which comprises a steel strand sheath and a plurality of vibrating wire sensors, a plurality of accommodating groove chambers are uniformly arranged in the steel strand sheath, the vibrating wire sensors are respectively arranged in the corresponding accommodating groove chambers, inner side open grooves are uniformly arranged on the inner side circumferential surface of the steel strand sheath, and the inner side open grooves are communicated with the accommodating groove chambers. The inner side open groove is communicated with the containing groove chamber, and a protective ring pad is arranged on the outer side of the steel stranded wire sheath and covers the area of the containing groove chamber. By adopting the sliding connection structure of the protection ring pad and the U-shaped chute, the rapid adjustment of rotation-downward movement-reverse rotation of the protection ring pad is realized, so that the maintenance or replacement of the vibrating wire sensor does not need to disassemble the steel strand sheath, the outer side open slot can be exposed only by sliding the protection ring pad, and the maintenance and replacement are convenient. And the high-altitude operation difficulty and risk are greatly reduced.

The utility model is suitable for the technical field of sacrifice appliances, and provides a multifunctional incense and candle paper ignition device which comprises a paper cone, a cavity is formed in the paper cone, a plurality of sets of telescopic rods are arranged at the bottom of the cavity, an outer disc is arranged at the top ends of the telescopic rods, an inner disc is arranged on the outer disc, and the inner disc is arranged on the paper cone. A plurality of candle inserting holes and incense inserting holes are formed in the top end of the inner tray; during use, the telescopic rod can be pulled to supply the incense and the candle at a high position, the height can be freely adjusted according to a user, after use, the telescopic rod can be conveniently contracted and stored, the inner disc is arranged on the outer disc, disassembly is convenient, internal dust can be timely cleaned, the candle inserting holes and the incense inserting holes are formed in the inner disc, and the incense and the candle can be conveniently inserted and taken; and meanwhile, the metal wire meshes in the holes are resistant to fire and corrosion, dust such as incense ash is easy to clean, cleaning is convenient, and the incense candlestick can be repeatedly used.

The utility model provides metal wire mesh roll welding equipment for kitchen ware processing, and relates to the technical field of kitchen ware processing roll welding equipment. A metal wire mesh roll welding device for kitchen ware machining comprises a machining table, a supporting column and a roller welding gun, a movable sliding way is installed at the top of the supporting column, and the bottom of the movable sliding way is slidably connected with a sliding block. According to the device, a sliding block is controlled to horizontally slide at the bottom of a movable sliding way, a metal wire mesh is welded in a rolling mode through a rolling wheel at one end of a rolling wheel welding gun, and certain upward pulling force is kept at one end of the rolling wheel welding gun all the time under the action of an extension spring; according to the metal wire mesh welding device, the rolling wheel welding gun is arranged on the machining table, so that the rolling wheel at one end of the rolling wheel welding gun has certain downward pressure on the machining table, the welding effect on the metal wire mesh is improved, the rolling wheel at one end of the rolling wheel welding gun compresses and fixes the metal wire mesh in the welding process under the action of a material pressing strip and a torsion spring of the material pressing mechanism, and the stability in the welding process is improved.

The utility model discloses a disposable convenient environment-friendly folding moxibustion box which comprises a folding box cover and a box body. A steel wire gauze filter is arranged in the folding box body, a dust isolation net groove is formed in the upper surface of the steel wire gauze filter, and a placement area is formed in the inner side of the dust isolation net groove; a temperature-controllable moxibustion box opening is formed in the upper end of the circular folding box body, and a moxibustion box cover plate for controlling the size of the moxibustion box opening is arranged at the upper end of the square folding box body; a steel wire filter gauze structure is arranged in the folding box body for placing moxa sticks, so that the ignited moxa sticks are ensured to be placed in a round shape or a square shape, and the moxa sticks are kept stable. The whole body adopts a structure in a steel gauze element separation mode to ensure the moxibustion fumigation effect; the moxibustion box body has a folding and unfolding function, a 2D plane folding structure can be quickly converted into a 3D structure when the moxibustion box is used, the occupied space for storage can be remarkably reduced before the moxibustion box is used and when the moxibustion box is stored, the whole moxibustion box is made of disposable recyclable paper materials, the production cost is low, and the moxibustion box is more environmentally friendly; and popularization of traditional Chinese medicine moxibustion culture is facilitated in practical application.

The utility model relates to the technical field of food processing, and particularly discloses an oil separation device which comprises solid-liquid separation equipment, and further comprises a separation trolley, a first filter and an oil storage tank which are communicated in sequence, and the oil outlet end of the first filter is communicated with the oil storage tank; wherein the separation vehicle comprises a containing groove with an opening in the top, a filter frame with an opening in the top is placed in the containing groove, a metal filter screen is arranged on the side face and / or the bottom face of the filter frame, a metal wire mesh dividing the inner cavity space of the filter frame into an upper cavity and a lower cavity is arranged on the filter frame, and oil separated by the solid-liquid separation equipment falls into the metal wire mesh; the bottom of the accommodating groove is communicated with a liquid outlet pipe which is communicated with the first filter. The hotpot condiment production system comprises a filling packaging machine and further comprises an oil separation device, and oil obtained through separation of the oil separation device is used for being fed into the filling packaging machine to be filled. The scheme is used for solving the problem that a pipeline is easy to block during subsequent pipeline conveying due to the fact that an oil material obtained by solid-liquid separation equipment in the existing hotpot condiment contains a large amount of slag materials.

To provide a wire gauze for construction capable of reducing the thickness of a part where the wire gauze for construction overlaps.SOLUTION: A wire gauze for construction 1 which is embedded in concrete Ct of a slab includes a plurality of linear parts 11, 12, 13 including linear parts extending in different directions on the same plane. The linear parts extending in different directions on the same plane among the plurality of linear parts 11, 12, 13 intersect on the same plane to form a plurality of intersection parts Cr1. An outer edge 1E of the wire gauze for construction 1 is a polygon including a part of the plurality of linear parts 11, 12, 13 and a part of the plurality of intersection parts Cr1, and at least one corner Cn1 of the outer edge 1E forms an angle of 120°.SELECTED DRAWING: Figure 4

The application relates to the technical field of gas-liquid separation, and discloses a pipeline type gas-liquid separation device suitable for a microgravity environment, which comprises a separator shell and a gas-liquid separation cylinder; the separator shell is located at the left side of the gas-liquid separation cylinder and is fixedly connected with the gas-liquid separation cylinder; gas outlet pipelines and gas-liquid mixture inlet pipelines are respectively arranged on the left and right side walls of the gas-liquid separation cylinder; a closed impeller is arranged on the head of the right side of the gas-liquid mixture inlet pipeline, and the closed impeller is located in the gas-liquid separation cylinder; the left side of the main body of the gas-liquid mixture inlet pipeline is located in the separator shell and rotationally connected with the separator shell, and shaftless guide vanes are arranged in the inner cavity; a metal wire screen and a liquid storage wire screen are arranged in the gas-liquid separation cylinder. The pipeline type gas-liquid separator under the microgravity environment has a larger separation capacity and a better separation effect than the traditional static separator, has the advantages of saving electric energy and simple structure compared with the traditional dynamic separator, and is suitable for the microgravity environment.

The utility model discloses a drag chain cable with strong compression resistance, which relates to the technical field of drag chain cables, and comprises a conductor, the outer wall of the conductor is fixedly connected with a mica tape, the outer wall of the mica tape is fixedly connected with an insulating layer, and the outer wall of the insulating layer is fixedly connected with an inorganic filling material. The outer wall of the inorganic filling material is fixedly connected with an asbestosed wire gauze layer, the outer wall of the asbestosed wire gauze layer is fixedly connected with a glass fiber layer, the outer wall of the glass fiber layer is fixedly connected with a halogen-free flame-retardant layer, the outer wall of the halogen-free flame-retardant layer is fixedly connected with a honeycomb compression-resistant layer, and the outer wall of the honeycomb compression-resistant layer is fixedly connected with an armor layer. According to the utility model, the honeycomb compression-resistant layer, the armor layer and the flexible outer cladding layer are involved to solve the problems that the actual structural stability of the existing optical cable is limited, the compression resistance needs to be improved, and the laying stability is relatively poor, thereby playing a crucial role in improving the applicability of the optical cable.

The utility model discloses a dustproof type tea airing rack which comprises a bottom box, a rotating column and an airing disc, a motor is fixed to the inner wall face of the bottom box, the output end of the motor is connected with a transmission belt in a winding mode through a belt wheel, the rotating column is installed on the top face of the bottom box, and a transmission column is welded to the bottom of the rotating column; according to the drying device, the opening of each drying disc of the rotating column is covered with the dust filtering cover with the metal wire mesh, the motor arranged in the bottom box is started, the output end of the motor drives the transmission column to rotate under the action of the transmission belt, and therefore the transmission column can drive the multiple drying discs on the surface of the transmission column to rotate through the rotating column; according to the rotary tea airing device, the rotary airing of tea in the airing plates is facilitated, the opening of each airing plate is covered with the dust filtering cover with the metal wire mesh, and the side face of each airing plate is provided with the annular glass cover, so that dust is easily blocked while sunshine airing is met, and the effects of rotary airing of tea and dust prevention are achieved.

The utility model relates to the technical field of metal wire annealing processing, and discloses a precise annealing furnace for tinned metal wires, which comprises a bottom plate, one side of the upper surface of the bottom plate is fixedly connected with a furnace chamber I, the upper surface of the furnace chamber I is fixedly connected with a hydraulic cylinder I, and the output end of the hydraulic cylinder I is fixedly connected with a heating mechanism I; a second heating mechanism corresponding to the first heating mechanism is installed on the inner wall of the first furnace chamber, and a plurality of guide assemblies are installed on the upper surface of the bottom plate. Each guide assembly comprises a support, a limiting sleeve, a threaded sleeve, a first guide wheel and a second guide wheel. A metal wire penetrates through the first guide wheel and the second guide wheel, accurate guiding is achieved, deviation is prevented, the adjusting lead screw drives the abutting block and the spring to adjust the distance between the guide wheels, positioning of the metal wires with different thicknesses is adapted, the threaded sleeve slides to adjust the distance between the metal wires, and the first hydraulic cylinder drives the first heating mechanism to be close to the second heating mechanism to complete annealing. The practicability of the annealing furnace is improved.

The utility model relates to the technical field of building structures, in particular to a landscape garden fountain landscape building structure which comprises a water storage pond and a water separation frame, the water separation frame is fixedly connected to the upper end of the water storage pond, a water spraying column is fixedly connected to the upper end of the water storage pond, an installation partition plate is arranged at the upper end of the water storage pond, and a water flowing opening is formed in the inner side of the installation partition plate. The inner side of one end of the water storage tank is rotationally connected with a second belt column, the outer side of the second belt column is rotationally connected with a first belt column through a belt, one side of the belt is fixedly connected with a water filtering asbestosed wire gauze ring, and the inner side of the upper end of the water storage tank is fixedly connected with a water retaining folded plate. The water filtering asbestosed wire gauze ring can be automatically cleaned in the using process, the water filtering asbestosed wire gauze ring does not need to be manually cleaned, meanwhile, the water filtering asbestosed wire gauze ring can be replaced, and the maintenance cost is reduced.

The invention discloses a method for fixing a side slope by hanging a flexible ecological rod on a net and spraying a matrix, in the method, in the initial stage of construction, by hanging and paving a galvanized wire gauze, the stability of the side slope can be effectively improved, and the construction safety is ensured; and ground anchors arranged in the construction process can further improve the stability of the side slope. The flexible ecological rods are laid on the hung and laid galvanized iron gauze, a stable platform is provided for the spray-seeding base layer substrate, and meanwhile a soil foundation is provided for the spray-seeding surface layer substrate. Along with growth of plants on the side slope, the plants play a role in fixing water and soil through root systems, space and gaps between the hung and laid galvanized wire gauze and the rock mass of the side slope are further filled, the tightness of the hung and laid galvanized wire gauze and the rock mass of the side slope is improved, the stability of the side slope is further improved, and meanwhile the slope surface of the side slope is covered with green plants within a certain time. And blending into the natural environment.

The utility model relates to the technical field of constructional engineering, in particular to a constructional engineering steel structural member transfer device. The constructional engineering steel structural member transfer device comprises a box body, pulleys, a first guide rod, a damper, a first handle, a fixing mechanism and the like. First guide rods are symmetrically installed on the two sides of the box body, dampers are arranged on the first guide rods, pulleys are connected to the bottoms of the first guide rods, a first handle is installed on one side of the box body, and the box body is provided with a fixing mechanism used for limiting the moving range of the steel structure component. The fixing rod and the wire gauze connected with the fixing rod are pulled to the side away from the winding drum and clamped and fixed, so that the top of the box body is closed, steel structural members in the box body are prevented from falling off in the transferring process, and the effect of improving transferring safety and efficiency is achieved.

The invention relates to the technical field of cast-in-place pile construction, in particular to an asbestosed wire gauze composite cast-in-place pile used for the karst cave underground water environment and a construction method of the asbestosed wire gauze composite cast-in-place pile used for the karst cave underground water environment. The interior of the upper steel casing and the interior of the fixed reinforcement cage are both used for placing a common reinforcement cage and pouring concrete; the end, facing the fixed reinforcement cage, of the upper steel casing is divided into a plurality of steel sheets through a plurality of upper steel casing cracks. The fixed reinforcement cage comprises an inner fixed reinforcement cage, the inner fixed reinforcement cage is sleeved with an outer fixed reinforcement cage, and the opposite side walls of the outer fixed reinforcement cage and the inner fixed reinforcement cage are coated with asbestosed wire gauzes; and the steel sheets are detachably connected with the external fixed reinforcement cage through connecting pieces. The opposite side walls of the outer fixed reinforcement cage and the inner fixed reinforcement cage are coated with the asbestosed wire gauze, so that fine particles can be effectively prevented from losing, and segregation is reduced; and the problems of deviation caused by hydrodynamic force and concrete forming are effectively solved.

A fall arrest safety net assembly has the form of a wire net bag constructed with a closed end and an opposing mouth drawn closed by a noose formed on a line by a running coupler fixed on one end of the line. A choker plate has two sides between which a plurality of openings extend openings that extend between the opposing sides. A line portion loops through the openings in the choker plate to secure the choker plate to the line outside the noose. A fastener fixed to the other end of the line is releasably fixable to the noose.

The utility model discloses a high-water-permeability type artificial turf, and belongs to the technical field of artificial turfs. The artificial lawn comprises an artificial lawn layer, the top of the artificial lawn layer is provided with a plurality of embedding grooves which are uniformly arranged, the interiors of the embedding grooves are fixedly connected with embedding blocks, the tops of the embedding blocks are fixedly connected with grass silk fibers, and the surface of the artificial lawn layer is provided with water permeable ports. Through cooperation of the artificial lawn layer, the embedded grooves, the embedded blocks, the grass silk fibers and the water permeable openings, water can flow into the water permeable openings to be drained, then through cooperation of the protection frame, the reinforcing frame, the glass fiber layer, the reinforcing layer, the asbestosed wire gauze layer, the flame-retardant particles and the damping soft cushion, an outflow channel is provided for the water, and the water can permeate and be drained step by step conveniently; the permeable effect of the artificial turf is improved, so that the artificial turf can meet the all-day exercise requirement in the use process.

The utility model discloses a novel vacuum furnace for smelting nickel-based high-temperature aluminum alloy, which comprises a furnace body, an inner container is welded on the furnace body, a through hole is arranged on the surface of the furnace body, a connecting shaft is arranged in the through hole, and the connecting shaft penetrates through an electrode sensing device to be connected with an electric wire. One end of the electrode induction device connected with the electric wire is connected with the induction coil, the induction coil surrounds the crucible, an asbestosed wire gauze is arranged between the crucible and the induction coil, the other surface of the furnace body is provided with an electrode device inlet and outlet hole, one end outside the connecting shaft is connected with a handle, one end of the connecting shaft is fixedly connected with a crucible support, and the other end of the connecting shaft is fixedly connected with the crucible support. The furnace body is provided with a blanking port, a heat preservation pool is supported below the furnace body, an ingot casting mold is placed in the heat preservation pool, a furnace cover is arranged above the furnace body, the furnace cover is provided with a through pipe, the through pipe is provided with a vacuum pressure gauge, the through pipe is connected with a vacuum device, and the device solves the problem that an existing boiler is uneven in heating.

The utility model relates to the technical field of moxibustion, and provides a moxibustion fire extinguishing device which comprises a fire extinguishing cylinder, an asbestosed wire gauze, a cylinder seat and a temperature control module, the fire extinguishing cylinder is provided with a fire extinguishing bin, an exhaust hole and at least one insertion hole, the exhaust hole and the insertion hole are both communicated with the fire extinguishing bin, a valve is arranged on the insertion hole and used for sealing the insertion hole, and the temperature control module is arranged on the cylinder seat. The asbestosed wire gauze and the barrel base are detachably arranged on the fire extinguishing barrel, the temperature control module comprises a heating core and a control module, the control module controls the heating core to work, gas in the fire extinguishing bin is expanded by heating the fire extinguishing bin, part of the gas is exhausted through the exhaust holes, and after the fire extinguishing barrel is cooled, the internal gas pressure is reduced to form negative pressure, so that the moxa sticks are completely extinguished. According to the moxa stick extinguishing device, gas in the fire extinguishing bin is expanded by heating the fire extinguishing bin, part of the gas is exhausted through the exhaust holes, and internal gas pressure is reduced to form negative pressure after the fire extinguishing cylinder is cooled, so that the extinguishing process of moxa sticks is accelerated, and the moxa sticks are extinguished more thoroughly.

The application discloses a microwave curing method for artificial quartz stone, which comprises the following steps: (1) ingredient preparation and mold laying; (2) high-vacuum vibration pressing; (3) sample sending to an access cavity; (4) sending to the center of a curing cavity, using a microwave device with a microwave frequency of 2450 Mhz to heat and cure the sample; (5) slow cooling in an outlet cavity; (6) demolding after being sent out of the outlet cavity; (7) polishing after being cooled to room temperature; and (8) obtaining a finished plate after thickness determination. The application uses a microwave with a specific frequency of 2450 MHz and an industrial intelligent control system to realize the intelligent control of microwave curing of samples with different sizes and different formulas, realizes the uniform and rapid curing of artificial quartz stone single boards, and the maximum thickness can reach 80 mm. Meanwhile, the access cavity, the curing cavity and the outlet cavity are sequentially connected by a conveying belt, and the microwave leakage risk is greatly reduced through the multilayer design of microwave suppression components such as a comb-shaped sheet microwave suppressor, a wave-absorbing plate, a reflecting plate and a metal wire mesh sealant.

The utility model relates to the technical field of chemical fiber tow drying, in particular to an efficient chemical fiber tow drying device which comprises supporting legs fixedly connected to the surface of the bottom of an upper operation panel assembly of the drying device. A limiting cover plate head is taken down from a processing, storing and storing frame, then chemical fiber tows can be placed in the processing, storing and storing frame, then a user needs to start a first output motor, and after the first output motor is started, the processing, storing and storing frame fixedly connected with the top end of an output shaft of the first output motor in a sleeving mode can be driven to rotate; a second output motor needs to be started, fan blades can be driven to rotate after the second output motor is started, a user further needs to open a heating rod, and hot air can penetrate through a steel wire gauze element to be blown to the chemical fiber tows through the rotating fan blades after the heating rod is started, so that the chemical fiber tows are turned over efficiently; the chemical fiber tows are blown and turned at the same time, so that the operation panel assembly on the drying device can be efficiently dried.

The utility model relates to the technical field of RTO (regenerative thermal oxidation) devices, and discloses a multi-channel switching type RTO device which comprises a filter box, a gas-liquid separation filter and an air outlet formed in the filter box, a gas delivery pipe is mounted at the air outlet of the gas-liquid separation filter, a regenerative chamber is mounted at the air outlet end of the gas delivery pipe, and the regenerative chamber is communicated with the filter box. The heat storage chamber is provided with a combustion box through a pipeline; the metal wire mesh filter plate is arranged in the filter box, and an activated carbon adsorption box is arranged above the metal wire mesh filter plate. Large particle impurities in waste gas can be removed through the wire mesh filter plate, dust and other impurities in the waste gas can be filtered through the activated carbon adsorption box, trace dust and tar impurities can be filtered through the gas-liquid separation filter, and the effect of removing liquid water is achieved; the phenomena of cracking, cracking and pulverization of ceramic heat storage in the heat storage chamber are avoided, and the stability of equipment is improved.

The presented invention is a self-supporting structure on which a filter is mounted, which is placed in addition to the stove pipes of a heating body (if used in the household) or placed in addition to the duct of the suction hood (if it is an open-type combustion). Smoke through the stove pipes flows from the heating body and enters the filter. Filtration modules are installed there, which are nested inside each other in order to increase the path travelled by the smoke, thereby increasing the efficiency of filtration. Around each module is a wire mesh that performs the function of filtering out smoke as it passes through it. At the bottom of the filter is a trough of water which, as the modules are heated, evaporates and moistens the smoke, thus sticking together the fine particles in it and forming agglomerates that fall down into the trough where they settle. Agglomerate sediment can appropriately be removed through the installed sediment tank.

The invention belongs to the field of coal mine roadway surrounding rock control, and aims to solve the problems that U-shaped steel waste rock retaining in a gob-side entry easily generates herringbone deformation outwards under the influence of dynamic pressure, and coal spontaneous ignition is caused by air leakage easily due to spraying of a macromolecular sealing material. The gob-side entry retaining side pressure prevention and leakage prevention wind and gangue blocking supporting method comprises the following steps that a double-layer iron gauze is laid; a plurality of steel wire ropes are vertically connected to the double-layer wire gauze in the roadway direction; the U-shaped waste rock blocking wall is erected; a guide steel pipe is obliquely inserted from a reserved opening of the U-shaped waste rock blocking part and used for guiding the double-layer wire gauze and the steel wire rope to go deep into the goaf; along with caving of a goaf top plate, the double-layer iron gauze and the steel wire ropes form a triangular buffer zone for caved gangues; inorganic materials are injected into the space in the triangular buffer zone to form a closed wind-shield wall. According to the method, the acting force of goaf gangue directly acting on the gangue blocking U-shaped steel can be relieved, and a closed goaf wall with good airtightness is formed.

The invention relates to the technical field of gas detection, in particular to a water immersion prevention probe structure and method.The water immersion prevention probe structure comprises a probe shell, a probe base and a water immersion prevention device, the probe base is connected with the probe shell through threads, the probe shell is of a cylindrical tubular structure with an upper opening and a lower opening, and a steel wire gauze element is arranged at the lower end opening of the probe shell; the probe base is provided with a water immersion sensor, a temperature and humidity sensor and a thiophane electrochemical sensor, the water immersion sensor is provided with two vertical strip-shaped electrode plates, and the water immersion prevention device can form water immersion protection on the thiophane electrochemical sensor when the liquid level in the probe rises. According to the invention, an automatic water immersion protection function can be realized for the tetrahydrothiophene sensor in the multifunctional probe, and impurities on the surface of the electrode plate of the water immersion sensor can be automatically removed.

The invention discloses a nucleic acid extraction, detection and analysis integrated instrument, and relates to the technical field of biological detection.The nucleic acid extraction, detection and analysis integrated instrument comprises an integrated processing mechanism, funnel-shaped pipes are fixed in two through holes of a mounting rack, electric valves are mounted at the output ends of two connecting pipes, flow sensors are mounted at the output ends of the two electric valves, and the flow sensors are connected with the integrated processing mechanism. A first electric push rod is mounted on the rear surface of the inner wall of the shell, an asbestos wire gauze is arranged at the top of a placement ring, an evaporation pan is arranged at the top of the asbestos wire gauze, an alcohol lamp is arranged at a groove in the top of a placement plate, and centrifugal equipment is arranged at the top of the inner wall of the shell. Substances in some solvents used in the nucleic acid extraction, purification and detection process of the sample can be recycled, so that the utilization rate of resources is improved, and the use efficiency of the nucleic acid extraction, detection and analysis integrated instrument is improved.