59results about How to "Filter impact" patented technology

The invention relates to the technical field of electric power, in particular to a system and method for testing the electric conductivity of a metal wire. The system comprises a direct-current power supply, a wire clamping system and a test system. The output end of the direct-current power supply is in series connection with the metal wire to be tested through a fixture. The metal wire to be tested is connected to an optical platform through a fixture. A first camera and a second camera are respectively and electrically connected with a computer. A multiple-pass digital multimeter V is connected with the metal wire to be tested and is further electrically connected with the computer. A multiple-pass digital multimeter A is connected with the metal wire to be tested through the direct-current power supply. Due to the adoption of the system and method for testing the electric conductivity of the metal wire, the electric conductivity of a metal wire of any length and section shape can be tested without considering the effect of the temperature on the resistance of the wire to be tested, and experiments are easy and quick to operate. The system and method greatly improve working efficiency, obviously improve testing accuracy and are suitable for all kinds of novel energy-saving metal wires.

A method for identifying the number and size of wood veneer knots based on image processing comprises the steps that (a) images are collected; (b) the images are converted to gray images; (c) a gray valve corresponding to the one-dimensional maximum entropy is obtained according to an entropy function definition formula and is set to be a threshold value; (d) the images are subjected to binarization processing according to the threshold value, only the black color and white color are displayed, N primarily-selected knots are separated from a background, and N is larger than or equal to zero; (e) a morphological closed operation is used for eliminating insolated points outside the knots and peripheral interference features; (f) all primarily-selected knots are processed respectively, wherein the step (f) further comprises the steps that (1) contour points are searched for and judged if having communication areas, if not, the contours are filtered out, and if yes, a fitting ellipse is obtained and the next step can be executed; (2) the lengths of a major axis and a minor axis of the fitting ellipse and the ratio of the lengths are calculated, if the ratio is smaller than 0.5 or the ratio is larger than 2.0, the contour point is filtered out, and if the ratio is larger than 0.5 and smaller than 2.0, the next step is executed; (3) interference factors are filtered out according to the matching degree of all points of the communication area and the obtained fitting ellipse; (g) the number of the knots is counted, and the area of the largest knob is calculated.

The invention relates to the technical field of batteries, in particular to a heat dissipation type vibration-proof new energy battery device. The heat dissipation type vibration-proof new energy battery device comprises a base, wherein a box is arranged on the base; the box is internally provided with a plurality of spacer plates in a uniformly-spaced mode from left to right, and a battery cavityis formed between every two adjacent spacer plates; fixed blocks are arranged on two sides of the box respectively, and sliding supporting plates are arranged on two sides of the base respectively; aplurality of elastic blocks are arranged at the bottom of the box in the uniformly-spaced mode, and an elastic component is arranged between every two adjacent elastic blocks; the box is provided with two groups of heat dissipation components at intervals from top to bottom, and each annular sleeve is arranged on the periphery of the corresponding battery cavity in a sleeving mode respectively; an air suction nozzle is arranged at one end of a heat dissipation sleeve, an air suction port of a micro air suction machine is communicated with the air suction nozzle, a plurality of air inlet nozzles are arranged at the other end of the heat dissipation sleeve, and each air inlet nozzle is provided with a filter screen. According to the heat dissipation type vibration-proof new energy battery device, the vibration can be reduced, the stability is high, and a vibration-proof effect is achieved; the ventilation effect and heat dissipation effect can be improved, and the annular sleeves are prevented from being blocked by dust to influence the heat dissipation effect.

The invention discloses an environmental protection device capable of recycling domestic water. The environmental protection device capable of recycling the domestic water includes a main body, filtering nets, pull wires, a motor, a connecting shaft, a smashing device, a sleeving-connecting gear, a baffle, a discharge hole, a discharge opening, a water gathering tank, a filter, a flow guiding pipeand a water guiding pipe. A water tank is embedded in a body wall of one side of the main body, and a water tap is installed on the side, close to the main body, of the water tank; the filtering netsare installed on the other side of the water tank, and the flow guiding plate is connected to the end, away from the water tank, of the filtering nets; and an automatic reset shaft is installed at the end, away from the flow guiding plate, of a connecting rod. The environmental protection device capable of recycling the domestic water is provided with the filtering nets which can intercept fruitpeel and vegetables discharged from the water tank; and the filtering nets are installed under the water tank, when fruits and vegetables are cleaned, the fruit peel and the vegetables can be discarded directly in the water tank and flow directly into the filtering nets with the water flow, the cleaning time is saved, and drainage cannot be affected by the filtering nets.

The invention discloses a safety protection wall. The safety protection wall comprises a plurality of detector groups disposed in a safety protection area, and wireless signal transceiving is carried out among detectors of every detector group, and therefore wireless signal radiation areas are formed. A plurality of wireless signal radiation areas are superposed with each other, and a continuous and seamless microwave array is formed in the safety protection area. When an invader breaks in the safety protection area, the wireless signal disturbance of the microwave array is caused, and the invader in the safety protection area is monitored according to the signal disturbance. Detection results are acquired after recombining a plurality of relatively independent wireless signals of the same position by adopting multiple-transmitting and multiple-receiving of a plurality of detectors, and then the detection results of a plurality of detectors are verified by each other, and the verification process is not just simple superposition between and and or of processing results of an upper layer, but is the processing and the calculation of the detection results of the detectors on a bottom layer, and therefore influences of disturbance factors on the detection results are effectively filtered, and the accuracy of the detection results is improved.

The invention discloses a dye filtering device for textile production. The dye filtering device comprises a stirring box, wherein a feeding pipe is arranged on one side of the outer wall of the top ofthe stirring box; the inner wall of the top of the stirring box is rotationally connected with a rotating shaft through a bearing; a stirring shaft is fixedly connected to the outer wall of the bottom of the rotating shaft; the outer wall of the top of the stirring box is fixedly connected with a motor; one end of motor output shaft is connected with rotating shaft through bolts; inserting openings are formed in the outer walls of the two sides of the stirring box correspondingly; a drawing plate is arranged between and connected with the two inserting openings in an inserted mode; insertingholes are formed in the two sides of the outer wall of the top of the drawing plate correspondingly; and inserting pins are connected to the inner walls of the two inserting holes in an inserted mode.The dye filtering device can prevent the surface of a filter screen from being blocked by impurities doped in dye, prevent floaters from being doped in the dye to influence the filtering of the dye and filter the dye in a filter barrel through extrusion, and is improved in dye filtering efficiency.

The invention discloses a filtering device for oil exploitation. The device comprises a filter box, two fixing legs are fixed on the outer walls of two sides of the filter box, oil outlets are arranged at two sides of the outer wall of the bottom of the filter box, a filter pressing cylinder is fixed at the inner wall of the bottom of the filter box, a plurality of filter holes are formed in the outer wall of the filter pressing cylinder, a supporting plate is fixed at a position, close to the top, of the inner wall of the filter box, an electric telescopic rod is fixed at the outer wall of the bottom of the supporting plate, a piston is fixed at the outer wall of the bottom of the electric telescopic rod, a filtering net is connected to the inner wall of the filter box through a hinge, and a box cover is fixed to the outer wall of the top of the filter box. The device can prevent the situation that the device cannot effectively filter petroleum with a high concentration, can prevent poor fluidity of the petroleum, caused by excessive petroleum accumulation, and can prevent obstruction in the device due to petroleum accumulation caused by high flow speed of the petroleum.

The invention discloses a metal cutting machining device, and relates to the technical field of metal cutting machining. The metal cutting machining device comprises a metal cutting mechanism used for metal cutting, a rotary scrap pressing mechanism used for rotating to press scraps, an oil stain filtering mechanism used for filtering oil stains and an elastic extrusion mechanism used for elastically extruding. A metal cutting device is arranged in the metal cutting mechanism. The rotary scrap pressing mechanism is arranged at the bottom of the metal cutting mechanism through the arranged metal cutting device. A spiral pipe is arranged in the rotary scrap pressing mechanism. The outer wall of the spiral pipe is fixedly connected with the oil stain filtering mechanism. The bottom of the spiral pipe is fixedly connected with the elastic extrusion mechanism. According to the metal cutting machining device, in the rotating process of a first outer cylinder, a spiral rod continuously extrudes the scraps, the scraps are clustered, the filtering effect is affected, and the scraps are bent through hitting of hitting balls on the spiral rod.

The invention relates to filtration equipment, in particular to seawater filtration equipment for seawater desalination and aims to provide the seawater filtration equipment which is used for seawaterdesalination and capable of realizing quantitative charging of a sterilizing agent and a flocculating agent and sufficiently stirring the sterilizing agent and the flocculating agent after charging.Aiming at achieving the technical effects, the seawater filtration equipment for the seawater desalination is provided and comprises a filter tank and other components, wherein a placement mechanism is arranged in the filter tank, a mounting plate is connected with the rear side of the upper part of the filter tank, and a charging mechanism is arranged at the top of the filter tank. According to the seawater filtration equipment for the seawater desalination, quantitative charging of the sterilizing agent and the flocculating agent can be realized by the charging mechanism; the placement mechanism is configured to fix a filter screen frame through support rods, the condition that filtration cannot be realized very well due to contact of the filter screen frame and the bottom wall of the filter tank is prevented, and by means of stirring rods, the sterilizing agent and the flocculating agent can be sufficiently mixed with quartz sand and activated carbon when added.

The invention relates to the technical field of irrigation devices, in particular to a forestry irrigation device. The forestry irrigation device comprises a base, a water tank is arranged at the topof the base, a water inlet is formed in the left side of the top end of the water tank, a liquid level sensor is arranged at the inner side of the water tank, the liquid level sensor is connected witha controller, a liquid relief box is arranged at the upper side of the water tank, the liquid relief box is connected with the water tank through a water pump, irrigation pipes are arranged at the left and right sides of the liquid relief box respectively, a water collecting box is arranged at the top of the liquid relief box, and the water collecting box and the water tank are connected througha water conveying pipe. By arranging an outer pipe and an inner pipe, due to rotation of the inner pipe, a connecting hole is communicated with a spraying pipe and a drip irrigation opening, and therefore the irrigation pipe can be switched between spray irrigation and drip irrigation; by arranging the liquid level sensor, the device can select different irrigation modes according to the water storage amount inside the water tank, water resources are saved, and meanwhile wood growth is facilitated.

The invention relates to the technical field of oil pressing equipment, in particular to an oil pressing device which comprises a processing box, wherein supporting legs are arranged at the four corners of the lower side of the processing box, a feeding box is arranged at the left end of the top of the processing box, a discharging pipe is arranged at the bottom end of the right side of the processing box, and a second electromagnetic valve is arranged on the discharging pipe. The oil pressing device is simple in structure, by arranging the feeding box, raw materials are poured into the feeding box from a feeding funnel, through cooperative use of a first motor, a rotating shaft, a baffle and a feeding port, the feeding speed can be controlled, it is avoided that too many raw materials enter a cutting box at a time, the raw material smashing degree and smashing efficiency are reduced, and the oil pressing efficiency is guaranteed; a first cutting blade and a second cutting blade are arranged to cut the raw materials multiple times in a dynamic and static combination mode, so that the raw materials are crushed more thoroughly, subsequent squeezing treatment is facilitated, and the oil pressing efficiency and the oil pressing quality are improved.

The invention discloses a filtering device for Baijiu production, which comprises a filter drum, a filter element and a painting body, wherein the filter element is arranged in the filter drum; a soil collecting chamber is arranged on the bottom part of the filter element; the painting body is arranged in the filter element; a liquor discharging pipe is arranged on the lower end of the filter drum; an inner cavity of the filter element is in a circular truncated cone shape; the inner diameter of the lower end of the filter element is smaller than the inner diameter of the upper end of the filter element; the painting body comprises a plug column, a support rod, a plurality of brush parts, a plurality of springs and a plurality of telescopic pieces; the support rod is fixed to the upper end of the plug column; the outer diameter of the plug column is smaller than the inner diameter of the filter element; the brush parts are slidably connected with the plug column; the springs are connected between the brush parts and the plug column; the support rod, the plug column and the brush parts are respectively provided with cavities which are communicated mutually; through holes communicating with the cavities are formed in the end parts of the brush parts; the telescopic pieces are slidably connected onto the plug column under the brush parts; the free ends of the telescopic pieces are in circular arc shapes. Compared with the prior art, the device can fully utilize kieselguhr to filter Baijiu, and is simple in structure and convenient to operate, and the filtering efficiency of the Baijiu is greatly improved.

The invention relates to a road drainage device for the sponge city. The device comprises a drainage groove, wherein a plurality of material guide barrels are arranged in the drainage groove in the length direction of the drainage groove, a sealing plate used for sealing the drainage groove is arranged on the drainage groove, and a plurality of waste material boxes are arranged on one side of thedrainage groove; a plurality of filtering holes are formed in the positions, located at the ends of the material guiding cylinders, of the closing plate, a discharging opening is formed in the top wall of the waste box, a cover plate used for closing the discharging opening is hinged to the waste box, and a filtering net is arranged in the waste box and located below the material guiding cylindersin a crossing mode; a frame body is arranged in the guide cylinder in the length direction of the guide cylinder in a sliding mode, the frame body is used for abutting against the peripheral side walls of the guide cylinder, and a first driving device used for driving the frame body to move in the length direction of the guide cylinder is arranged between the first guide plate and the waste box;the device has the advantage of being good in rainwater filtering effect.

The invention discloses an anti-blocking pipeline system for municipal sewage treatment. The pipeline system comprises a shell. A water inlet is formed in the upper end of one side of the shell, and awater inlet mechanism is mounted on the water inlet. A water outlet is formed in the upper end of the other side of the shell, and a sewage pipe is fixedly connected to the water outlet. A flushing mechanism is mounted at the upper end of the sewage pipe. The lower end of the sewage pipe is fixedly connected with a water storage tank, and the water storage tank is communicated with the sewage pipe. A carrier plate is fixedly connected between the water storage tank and the shell, the upper end of the carrier plate is fixedly connected with a storage battery, and protective shells are fixedlyconnected to the front side and the rear side of the carrier plate. According to the invention, the shell with a filter mechanism is arranged, and the water inlet mechanism and the sewage pipe are arranged on the two sides of the shell. When municipal sewage enters the shell through a water inlet pipe of the water inlet mechanism, a filter plate of the filter mechanism can filter foreign matters such as silt in the sewage, and then the sewage is discharged into other sewage conveying pipelines through the sewage pipe, so that the foreign matters such as the silt in the sewage can be preventedfrom blocking the other sewage conveying pipelines.

The invention discloses an anti-clogging filter head with no handle applied to a water treatment biological filter tank. The anti-clogging filter head with no handle comprises an upper filter cap, a pre-embedded base, a lower filter cap and self-cleaning balls, wherein the pre-embedded base is fixed on a filter plate of the filter tank; the upper filter cap is in threaded connection with the pre-embedded base; the lower filter cap is movably connected with the pre-embedded base; the self-cleaning balls adopt spherical shale ceramisites with diameters of phi 6mm-phi8 mm; the density of water-soaking particle of the spherical shale ceramisites is 0.95 + / -0.5g / cm<3>; and the particles are in a lightly floating state in water. The self-cleaning balls are arranged in a cylindrical cavity of a diameter of 45-50 mm in the pre-embedded base; when gas-water back washing is performed on the filter tank, the self-cleaning balls form resistance water distribution; and meanwhile, friction is fluidized to automatically clean the inner cavity of the filter head, so that attached aquatic organisms are prevented from affecting overflowing. During gas flushing, a gas distributing device is utilized for uniformly distributing air to the bottom of the filter plate, and gas is uniformly introduced in the neighborhood of the pre-embedded base and a gap in the bottom of the lower filter cap; and a single-hole membrane aeration tube of a biological aerated filter also can be mounted below the filter plate.

The invention discloses a tidal enteral nutrition pump which comprises a base, a supporting plate is fixedly connected to the top of the base, a box is fixedly connected to the front face of the supporting plate, a partition plate is fixedly connected between the two sides of the inner wall of the box, and a first baffle is slidably connected to the bottom of the partition plate. According to the tidal enteral nutrition pump provided by the invention, a nutrient solution is filtered, so that the situation that cakes enter the nutrition pump pipe to cause blockage is prevented, the cakes can be prevented from being fed into the body of a patient to be inconveniently digested, meanwhile, the cakes are convenient to clean, the influence of accumulation of the cakes on filtration of the filter plate is reduced, and by adopting tidal input, according to the gastrointestinal motility function of the human body, the gastrointestinal motility rhythm is simulated, the nutrient solution is dripped for a period of time, paused for a period of time, dripped again for a period of time, paused again for a period of time, and intermittently dripped, so that the nutrient solution can be intermittently conveyed, and the situation that a patient feels uncomfortable can be reduced.

The invention discloses a grid type sewage treatment apparatus. The apparatus structurally comprises a grid sewage cleaning machine, a bracket, grid bars, a secondary decontamination mechanism, rake teeth, a traction chain, a driving device, a deslagging guide pipe and a removal mechanism, fine dirt in the sewage is further filtered and fished by the grid bars through a filter screen to improve the sewage filtering treatment, an ejector rod collides with an oscillating rod to make the oscillating rod drive a water filtering attaching plate to be attached to the back surface of a filter screenthrough a connecting rod, and the water filtering attaching plate is used for ejecting out an object which is attached by dirt and is blocked on the filter screen by utilizing a thorn cone to preventthe filter screen from being blocked to influence filtering. The apparatus is used for improving the filtering treatment of fine dirt in sewage, the traction chain rotates to drive the convex teeth, and then the convex teeth drive the removal mechanism to rotate, so that the removal mechanism brushes the grid bars passing through in a reciprocating manner, the grid bars are prevented from being blocked, and the grid bars do not need to be cleaned manually again, so the manual labor cost is reduced.

The invention discloses a method and device for filtering alarm data, an electronic device and a computer-readable storage medium. The method includes: creating a first rule pool and a second rule pool, wherein the first rule pool stores filtering rules with dependencies, and the second rule pool stores independent filtering rules; according to the preset execution rule, executing each filtering rule in the first rule pool, filtering the alarm data to be filtered, and obtaining a corresponding filtering result as the first filtering result; executing each filtering rule in the second rule poolaccording to the preset execution rule to filter the first filtering result; obtaining a filter result corresponding to each filter rule in the execution second rule pool as a second filter result, and outputting the obtained second filter result. The technical scheme can filter the alarm data, prevent the waste of resources and the increase or decrease of the maintenance cost of the alarm, and prevent the abnormal execution of filtering rules from affecting the entire alarm data filtering.

The invention relates to the technical field of air purification, and discloses a cyclone wet dust collector which comprises an outer tower, supporting legs are fixedly connected to the bottom of theouter tower, an in-tower circulating liquid emptying pipe is fixedly mounted at the bottom of the outer tower, an air inlet is formed in the surface of the outer tower, and an air outlet is formed inthe top of the outer tower. An access hole is formed in the side surface of the outer tower, and a rotational flow plate is arranged in the outer tower. According to the cyclone wet type dust collector, when impurities are treated, impurities in dust-containing waste gas sprayed with water mist particles are filtered onto a filtering screen through the filtering screen, then due to external wind power and the fan-blade-shaped rotating plate, wind blows the rotating plate to rotate, and the filtered impurities can be cleaned conveniently; and therefore, accumulation of impurities in the outer tower is reduced, the cleanness of the interior of the outer tower is improved, and the impurities are prevented from being attached to the interiors of the outer tower and a collecting tank to influence gas filtration of the dust remover.

The invention discloses a rainwater collection, purification and recycling structure on the roof of an environmentally friendly building in the technical field of rainwater collection, purification and recycling on the roof of an environmentally friendly building, including an environmentally friendly building, a rainwater filtering mechanism and a graded storage mechanism. The rainwater filtering mechanism is set in Around the environment-friendly building, the graded storage mechanism is arranged under the rainwater collection and filtration mechanism; the present invention collects and filters the rainwater on the roof of the environmental protection building through the rainwater filtration mechanism, and uses the graded storage mechanism to collect the rainwater when the rainfall is large. First, the first water storage tank is used to initially collect rainwater. When the rainfall is large, the rainwater in the first water storage tank is automatically discharged into the second water storage tank, which can effectively prevent the water storage tank from overflowing.

The invention belongs to the field of polyester needled felts, and relates to a polyester needled felt with high dust removal efficiency. The polyester needled felt comprises needled felt fibers, a wear-resistant layer is arranged on the upper surface of the needled felt fibers, a leveling coating is connected to the lower surface of the needled felt fibers, metal wires are connected to the interiors of the needled felt fibers, and a waterproof breathable film is connected to the upper surface of the needled felt fibers close to the lower part of the wear-resistant layer. Through the arrangement of the metal wires, splicing openings and the waterproof breathable film, the metal wires can limit the positions of needled felt fibers, large position movement cannot occur under the action of external force, and the situation of dust leakage due to large holes in individual parts because of needling is avoided; the waterproof breathable film can block small water drops in air flow flowing along with dust; when the needled felt fibers are wetted, dust is prone to being attached to the wetted needled felt fibers, filtering holes of the needled felt are blocked, and dust filtering of the needled felt is affected, while, with the polyester needled felt adopted, the above situation can be avoided.

The invention discloses a multistage filtering device for tartaric acid processing. The device comprises a filtering tank, a fixing plate is fixed to the inner wall of the filtering tank, filtering holes which are annularly distributed at equal intervals are formed in the outer wall of the top of the fixing plate, a rotating shaft is rotatably connected to the outer wall of the bottom of the fixing plate through a bearing, a stirring mechanism is fixed to the outer wall of the bottom of the rotating shaft, the stirring mechanism is mainly composed of a rotating disc and a shifting piece, the rotating disc is connected with the shifting piece through a bolt, a motor is fixed to the outer wall of the top of the fixing plate, one end of an output shaft of the motor is connected with the rotating shaft through a bolt, and a tank cover is fixed on the outer wall of the top of the filtering tank. The device can prevent the interior of the device from being blocked to influence tartaric acidfiltering due to poor fluidity of tartaric acid, can prevent the device from influencing tartaric acid filtering due to too high flowing speed of tartaric acid, and can clean impurities doped in taricacid.

The invention provides a silt treatment device for obliquely brushing a silt wall by using a funnel to filter silt for a water conservancy project, and relates to the technical field of filtering equipment. The silt treatment device aims to solve the problems that a filtering device of an existing silt treatment device is incomplete, stones in the silt are easily clamped on a filter screen and are inconvenient to clean when the silt is filtered, and when the stones clamped on the filter screen are more, the filtering efficiency of the filter screen on the silt is influenced. The silt treatment device comprises a supporting part, wherein a filtering assembly is arranged on the supporting part, and the two ends of the front side of a sieve plate of the filtering assembly are inserted into a mounting groove. The silt falls onto the sieve plate from a shell, a screen in the middle of the sieve plate plays a role in filtering the silt, when more stones are clamped on the screen in the middle of the sieve plate, a sliding rod is pulled downwards, so that gears on the two sides of a rolling piece rotate on a rack on the front side of an inserting plate; and the rolling piece rotates, so that a conical protruding structure on the outer side of the rolling piece can jack the stones clamped in the sieve plate, and the stones are prevented from being clamped on the sieve plate to influence the filtering of the sieve plate on the silt.

The invention relates to a preparation and processing system for a polycarboxylate water reducer, comprising an indented support frame, a preparation barrel, a filtering mechanism, a feeding mechanism, a waste residue collecting mechanism and a polycarboxylate water reducing agent collection tank. The feeding mechanism adopted in the present invention is: Intermittently transmit the polycarboxylate water reducer to the filter mechanism, and then filter the impurities filtered in the polycarboxylate water reducer through the rotation of the filter mechanism, and filter the filtered impurities in the polycarboxylate water reducer by intermittent rotation. The upward movement is driven by the filter connecting plate to prevent the residual impurities from affecting the next filtration of the polycarboxylate water reducer, and to improve the filtering effect of the polycarboxylate water reducer. The polycarboxylate water reducing agent cannot be filtered due to the residence.

The invention discloses a printing and dyeing dust remover comprising a printing and dyeing dust remover body composed of a dust removal shell, an air inlet plate and a dust collection shell; the bottom of the dust removal shell is fixedly connected with the top of the air inlet plate, the bottom of the air inlet plate is in threaded connection with the top of the dust collection shell, and an air outlet is formed in the top of the dust removal shell; a filtering mechanism is arranged in the dust removal shell; an air inlet is formed in the air inlet plate; the filtering mechanism comprises a filtering shell, the interior of the filtering shell is slidably connected with a limiting block through a spring, and the side, away from the filtering shell, of the limiting block is slidably connected with the interior of the dust removal shell. The invention relates to the technical field of printing and dyeing. According to the printing and dyeing dust remover, the problems that in a traditional printing and dyeing process, generated waste gas contains cloth velvet, dust and other harmful gas, the waste gas directly drifts in a workshop and pollutes the surrounding environment, and meanwhile the body of an operator is greatly damaged after the waste gas is inhaled into the body of the operator are solved.

The invention discloses a tunnel construction wastewater cyclic utilization apparatus, which comprises a water inlet pipe, a main device, a digital display screen, an operation button, a control cabinet, an apparatus shell, a base, an omnidirectional wheel, a water outlet pipe, and a fixed frame. The main device comprises a driving mechanism, a cam transmission mechanism, a chain wheel mechanism,a sludge removing mechanism, a stay wire transmission mechanism, an alum liquid feeding mechanism, a filter box, a sludge discharge opening, a filter screen, a connection water pipe, an oxidizing box,and a contact-oxidation column. The driving mechanism, the cam transmission mechanism, the chain wheel mechanism, the sludge removing mechanism, the stay wire transmission mechanism, and the alum liquid feeding mechanism are arranged in the main device of the apparatus; sludge on the filter screen can be automatically and periodically cleaned; the filter screen does not need to be replaced manually, and the cyclic wastewater filtering efficiency is improved therefore.

The invention discloses a novel compressed air purification system based on the Internet of Things. The novel compressed air purification system comprises an air filtering device, a shell, an air compressor and a control box; four supporting pads distributed in a rectangular array are installed at the bottom of the shell; a first air guide cavity, a ventilating duct and a second air guide cavity are formed in the air filtering device; a first filter screen is mounted at the outer port of the first air guide cavity; a second filter screen is fixed in the second air guide cavity; a first electromagnetic valve and a second electromagnetic valve are arranged on the right side of the air compressor; a cooler is connected to the right side of the first electromagnetic valve, the second electromagnetic valve is arranged on the lower side of the first electromagnetic valve, a heater is connected to the right side of the second electromagnetic valve, the control box is arranged on the inner side of the top of the shell; and a controller, a processor, a wireless transmitter and a wireless receiver are arranged in the control box. According to the novel compressed air purification system based on the Internet of Things, impurities are prevented from entering the interior to damage equipment, air filtration is prevented from being influenced by blockage, and the temperature can be controlled.

The invention discloses a textile printing and dyeing wastewater treatment device which comprises a device body, a fixing plate is fixedly installed at the bottom of the inner side of the device body, an electrical room is arranged at the bottom of the inner side of the device body through the fixing plate in a separated mode, and a yarn removing cylinder, a settling chamber and a water filtering chamber are fixedly installed at the upper end of the fixing plate. A water conveying pipe is inserted into the side wall of the device body, the water conveying pipe is inserted into the yarn removing cylinder, and a yarn removing mechanism is arranged in the yarn removing cylinder. The yarn removing mechanism is arranged in the yarn removing cylinder, a driving mechanism in the yarn removing mechanism is used for driving a rotating shaft to rotate, the rotating shaft drives a first mesh cylinder to rotate, the first mesh cylinder drives a second mesh cylinder to rotate, and while the second mesh cylinder rotates, a yarn winding needle in the second mesh cylinder winds silk threads in waste water on the side wall of the first mesh cylinder; and silk threads in the yarn removing cylinder can be collected, and the situation that large-area blockage is formed in the later filtering process, and waste water filtering is affected is avoided.

The invention discloses a coal underground gasification monitoring device, and belongs to the technical field of coal gasification, the coal underground gasification monitoring device comprises a mounting rack, a position displacement monitoring component, a dust cleaning monitoring component and a gas gasification monitoring component, the position displacement monitoring component is located on the mounting rack, and the dust cleaning monitoring component is located at the telescopic end of the position displacement monitoring component; the dust cleaning monitoring component comprises a mounting cylinder, a gas swing assembly and a dust blocking assembly, the mounting cylinder is connected with the telescopic end of the dust cleaning monitoring component, the gas swing assembly is located at the bottom of the mounting cylinder, and the dust blocking assembly is located in the mounting cylinder and is in sliding fit with the mounting cylinder; and the gas gasification monitoring component is located in the position displacement monitoring component and communicates with the mounting cylinder. According to the invention, gas in supervision gas is filtered through the gas swing assembly and the dust blocking assembly, so that accurate supervision data can be obtained.

The invention discloses a flaxseed oil pressing device, and belongs to the technical field of flaxseed oil production. The flaxseed oil pressing device comprises a bottom frame, a pressing filtering mechanism is fixedly mounted at the top end of the bottom frame, a material control assembly is fixedly clamped at the top end of the pressing filtering mechanism, and a pretreatment assembly is fixedly mounted at the top end of the material control assembly; and a feeding frame is fixedly clamped to the top end of the pretreatment assembly, a power mechanism is fixedly installed at the upper end of one side of the pressing filtering mechanism, and an oil control valve is fixedly clamped to the lower end of the side, away from the power mechanism, of the pressing filtering mechanism. According to the flaxseed oil pressing device, by arranging the pressing filtering mechanism, pressed oil can be effectively filtered multiple times, and residues left at the top end of a second filtering frame and the bottom end of a first filtering frame can be removed through a first scraping plate and a second scraping plate, so that the situation that filtering holes of the second filtering frame are blocked due to excessive impurities, and oil filtering is affected is prevented, and then the processing efficiency of the flaxseed oil is improved.