4614 results about "Solid particle" patented technology

The invention relates to the technical field of flue gas purification treatment, and discloses flue gas treatment-based flying solid particle capturing and separating equipment, which comprises a shell, a fixed shaft is coaxially arranged in the shell, an air duct structure in a spiral path shape is fixedly connected to the fixed shaft, a spiral air groove is formed in the inner wall of the shell, and the spiral air groove is communicated with the fixed shaft. An annular gap is formed between the spiral air groove and the air duct structure, a filter screen is rotatably arranged in the gap, a cleaning bin is arranged on the outer side of the filter shell, a winding shaft is rotatably arranged in the cleaning bin, and a cleaning assembly is laid on the surface of the winding shaft; according to the equipment, the flowing direction of smoke is changed through the spiral design of the air duct structure, the smoke is pushed to the filter screen through centrifugal force, particles in the smoke are gradually adsorbed by the filter screen, and after the smoke enters the spiral air duct, the flowing speed of the smoke is increased due to the fact that the channel is small and is not blocked by the filter screen; and the generated pressure difference and spiral force improve the passing rate of the filter screen and the overall filtering efficiency.

The invention relates to the cross technical field of fluid mechanics and machine learning, and discloses a particle fluid two-phase flow simulation and reverse optimization method based on deep learning. The method comprises the following steps: constructing a two-phase flow coupling simulation framework based on a fusion discrete element method and smoothed particle fluid dynamics; the drag force, buoyancy and capillary force between particles and fluid are introduced, and the calculation efficiency is improved through GPU parallel acceleration; a graph neural network is adopted to establish a particle-level dynamic interaction modeling framework, and coding and prediction of solid particles and fluid particles are independently processed; a differentiable reverse design system is further developed, and layout parameters of a flow control structure are dynamically optimized based on a gradient descent method by combining automatic differential characteristics of GNN and surrounding target functions such as flow collapse degree and centroid offset, so that effective suppression of two-phase flow destructive behaviors and system performance optimization are realized. The method has high-precision simulation and efficient optimization capabilities, and is suitable for complex two-phase flow engineering scenes such as dam burst and debris flow prevention and control.

The invention provides an adjustable damping capsule vibration isolation system based on electrorheological fluid, and belongs to the field of vibration isolation devices.The adjustable damping capsule vibration isolation system comprises a vibration isolation capsule, the vibration isolation capsule is filled with the electrorheological fluid, and the electrorheological fluid comprises solid particles; a pneumatic pump; a conduit; at least part of solid particles in the electrorheological fluid move to the guide pipe under the action of gravity; the pneumatic pump is configured to pump gas into the guide pipe based on the target gas flow so as to convey a target number of solid particles in the guide pipe into the vibration isolation bag body to change the concentration of the solid particles in the electrorheological fluid, and the electrorheological fluid is configured to perform vibration isolation treatment on elastic waves of the vibration source by using an electrorheological effect based on the concentration of the solid particles.

The invention discloses a deep-sea mining multiphase flow particle conveying prediction and regulation method based on flow pattern recognition. The method comprises the steps that pressure, flow, bubble or liquid drop volume fractions and solid particle volume fractions at different positions in a pipeline are periodically collected through collection equipment; according to the pipe diameter and the gas-liquid ratio and the mixing flow speed obtained through calculation, a pre-built-in flow pattern division algorithm is called, and bubble flow, slug flow, vortex and annular flow are distinguished; solving the volume fractions of gas-liquid discrete units of any diameter in different flow patterns; the conveying speed of solid particles in the multiphase flow is obtained according to the gas-liquid dispersed phase volume fraction; and whether the obtained solid particle conveying speed reaches a preset optimal interval or not is judged, and the flow pattern or the gas-liquid ratio of the multiphase flow in the pipeline is controlled according to the result so as to adjust the solid particle conveying speed. The mining efficiency of submarine minerals can be improved, a dangerous flow pattern formed by an unreasonable gas-liquid distribution ratio can be avoided, and efficiency and safety are both considered.

The invention belongs to the technical field of sewage pipeline flow detection, and particularly relates to a sewage pipeline flow calculation method based on electromagnetic induction, which comprises the following steps: step 1, a detection mechanism is arranged between two butt-joint flowing sewage pipelines, and the detection mechanism is composed of a measuring pipe, an electrode and an excitation coil, the magnet exciting coil wraps the outer arc surface of the measuring tube. The sewage pipeline flow calculation method based on electromagnetic induction is high in measurement precision and suitable for various conductive media including sewage, corrosive liquid and a mixture containing solid particles; the measuring range is wide, and the device is suitable for measuring fluids with different pipe diameters and flow ranges. The electromagnetic flowmeter can be quickly mounted on the sewage pipe through the quick clamping mechanism, so that the mounting time is shortened, the labor intensity is reduced, and maintenance and calibration are facilitated; measurement errors caused by fluid interference are avoided by reducing accumulation of sediments, and the accuracy of circulation measurement is further enhanced by circular motion measurement of the electrodes.

The invention provides a superfine nano phosphorus-carbon negative electrode material prepared based on in-situ high-temperature phase change in a confinement microcavity and a preparation method of the superfine nano phosphorus-carbon negative electrode material. The method aims to solve the problems of large volume expansion, poor conductivity, poor cycling stability and the like when phosphorus is used as a negative electrode material of an alkali metal ion battery. By constructing a confinement microcavity on the surface of a porous conductive material and combining a transient high-temperature phase change technology, phosphorus can be uniformly distributed and nanocrystallized. The method comprises the following steps: mixing phosphorus and a conductive porous material in a solvent, sanding, forming solid particles through reforming granulation, and constructing the confinement microcavity through coating treatment. Transient heating is carried out in a high-temperature device, so that the phosphorus source is quickly sublimated and uniformly distributed, finally, heat-preservation conversion is carried out in a sealed container, and the stability of the material is improved. The method not only improves the utilization efficiency of phosphorus and the conductivity of the material, but also enhances the cycle life and energy density of the battery, and has the advantages of simplifying the process flow and reducing the production cost.

The utility model discloses a filter pressing device for inorganic waterproof coating production, which relates to the technical field of inorganic waterproof coating production and comprises a driving mechanism, the top of the driving mechanism is in transmission connection with a transmission mechanism, a filter pressing mechanism is fixedly mounted on one side of the transmission mechanism, and a filtering mechanism is arranged at the bottom of the filter pressing mechanism. When the motor is started, the turntable is driven to rotate, the turntable is not completely symmetrical, so that the rotation of the turntable can cause the connecting rod to shake up and down, the connecting rod is connected to one end of the connecting shaft of the sliding block, the sliding rail is a track, the sliding block is an assembly capable of sliding along the sliding rail, and the filter pressing mechanism is fixedly arranged on the sliding block. When the sliding block moves up and down due to the power of the motor, the filter pressing mechanism also moves up and down in the filtering mechanism to carry out filter pressing, and the filter pressing device for producing the inorganic waterproof coating can effectively remove solid particles and impurities in the coating and improve the purity and the quality of the coating.

The system and method for decelerating space objects moving at high velocities are provided. The system comprises at least one closed volume containing a combination of gas, liquid, solid particles, or a mixture thereof. The volume can be transported to the targeted location using a range of means, including a chemical gun, light gas gun, electromagnetic coil gun, superconducting quench gun, a rocket, or a combination thereof. The volume is strategically positioned on the trajectory of the moving object. Upon penetrating the walls of the volume, the object passes through it, experiencing deceleration.

The invention relates to the technical field of heat storage equipment, in particular to heat storage and exchange integrated solid particle heat storage equipment which comprises a heat insulation barrel, a material containing barrel, a solid heat exchange pipe, a recovery pipe and a separation device. The material containing barrel is coaxial with the heat insulation barrel and located in the heat insulation barrel, and the material containing barrel is filled with solid particles. And the solid heat exchange tube is arranged in the material containing barrel. A turbofan is arranged in the recovery pipe, and the separation device is installed on the material containing barrel. According to the solid particle heat storage equipment integrating heat storage and heat exchange, by arranging the heat insulation barrel, the material containing barrel, the solid heat exchange pipe and the separation device, solid particles continuously and circularly flow in the heat storage or heat exchange process, the solid particles can make full contact with the solid heat exchange pipe, and then the heat exchange efficiency of the solid particles and the solid heat exchange pipe is improved; and the temperature of the solid particles is more uniform.

The utility model discloses a plate compactor with a dust falling function, and relates to the technical field of plate compactors, the plate compactor with the dust falling function comprises a compactor body, and a filter mechanism comprises a connecting frame, a mounting hole and a filter screen. At the moment, the connecting frame is slidably connected to the exterior of the rammer body, the dust suction nozzle enters the interior of the mounting hole, one end of the mounting plate is attached to the exterior of the connecting frame, the other end of the mounting plate is aligned to the threaded hole, the fixing bolt is rotated to be in threaded connection with the interior of the threaded groove to fix the fixing plate, and the connecting frame is fixed at the moment; when the plate compactor works, dust is sucked into the dust collector through the dust suction nozzle, the harm of the dust to workers is reduced while the dust falling function is started, and when the dust suction nozzle sucks the dust, the filter screen blocks large-size solid particles to prevent the large-size solid particles from entering the dust suction nozzle to block the dust suction pipeline. And the maintenance difficulty of workers is reduced.

The corrosion-resistant and wear-resistant economizer comprises a water inlet pipe, a water outlet pipe and a heat exchange pipe, the water inlet pipe is connected with the water outlet pipe through the heat exchange pipe, a water inlet valve is installed on the water inlet pipe, a rotatable ash removal assembly is installed on the heat exchange pipe, and protruding reverse rotation protruding blocks are arranged on the side faces of the two ends of the heat exchange pipe correspondingly; the ash removal assembly comprises a supporting frame, three sets of brush plates arranged on the supporting frame and air scoops installed on the brush plates, and a preparation method of the corrosion-resistant and wear-resistant economizer comprises the following steps that firstly, materials are prepared; step 2, manufacturing and assembling components; step 3, integrally assembling and debugging; and a brush of the dust removal assembly can effectively remove dust and solid particles on the pipe wall. The reasonable design of the air scoop and the automatic reverse rotation function of the ash removal assembly ensure comprehensive cleaning of the pipe wall, the ash removal assembly automatically rotates and reversely rotates through waste gas blowing, and frequent manual operation is not needed for ash removal.

The utility model discloses a grading type rare earth extraction box which comprises a support, two sliding rods, two sliding blocks, a clarifying chamber and a plurality of springs, and a driving mechanism is arranged on the outer right side of the support. Due to the fact that the driving mechanism and the spring are arranged on the clarifying chamber, the clarifying chamber can vibrate in the working process, and the solid-liquid separation device has the advantages that the solid-liquid separation efficiency is improved, the relative movement between solid particles and liquid can be accelerated through vibration, and therefore the solid particles can settle to the bottom more easily; therefore, the suspension time of solid particles in the liquid is shortened, and the solid-liquid separation efficiency is improved; 2, sediment blockage is prevented: in the long-time standing process, some sediments can be accumulated at the bottom of the clarifying chamber, and if the sediments are not cleaned in time, the sediments can block an outlet or influence the flowing of liquid;

The invention belongs to the technical field of pipeline cleaning, and particularly relates to a dynamic wall pipeline with a cleaning structure, which comprises an arc-shaped shovel plate, a connecting spring is fixedly mounted on the back surface of the arc-shaped shovel plate, a bag body is fixedly mounted on one side, far away from the arc-shaped shovel plate, of the connecting spring, and a step end is arranged in the middle of the inner arc surface of the bag body. The ends, away from the arc-shaped shovel plates, of the connecting springs are fixedly installed on the surface of the step end. An arc-shaped groove is formed in the side, close to the step end, of the inner arc face of the bag. The arc-shaped shoveling plate usually has certain hardness and sharpness, stubborn dirt and sediments on the inner wall of a pipeline can be powerfully scraped off, hard-shell-shaped scaling, sticky oil dirt or solid particle accumulation can be effectively stripped off from the pipe wall through the scraping plate, the bag body has soft texture and good water absorption, and the bag body is not prone to falling off. The inner wall of the pipeline can be wiped carefully after the scraping plate scrapes most dirt, and residual sewage and small particles can be adsorbed, so that the inner wall of the pipeline is smoother and cleaner.

The invention discloses an intelligent pressure regulating and metering pry, and belongs to the technical field of pressure regulating and metering pry. Comprising a base; the skid-mounted component and the valve bodies are arranged on the base, the valve bodies are fixedly connected and communicated with the skid-mounted component, the valve bodies are in sealed sliding connection with valve rods, and the valve rods are in sealed sliding and rotating connection with sealing blocks; the sealing blocks are fixedly connected with first connecting pieces, the multiple sliding frames slide on the first connecting pieces of the adjacent sealing blocks respectively, the sealing blocks are fixedly connected with first sealing rings, and the multiple sliding frames located on the first connecting pieces of the same sealing blocks are jointly and fixedly connected with rubber rings. Solid particles located at the attaching position of the first sealing ring and the valve body are pushed to the outside in advance, then the first sealing ring and the valve body are attached to complete plugging, and the situation that the first sealing ring cannot be completely attached to the valve body due to the solid particles, and the sealing effect is reduced is avoided.

The invention relates to the technical field of storage tank liquid level meters, in particular to a liquid storage tank liquid level meter which comprises a magnetic turning plate liquid level meter used in cooperation with a tank body, the bottom of the tank body is fixedly connected with a water outlet, the top of the tank body is fixedly connected with a water inlet, the outer side of the tank body is further fixedly connected with two sets of butt-joint pipe openings, and the magnetic turning plate liquid level meter is fixedly connected to the butt-joint pipe openings. The arc-shaped baffle is fixedly connected to the bottom of the tank body, the two communicating pipes are fixedly connected to the magnetic turning plate liquid level meter, the filtering assemblies are rotationally connected to the communicating pipes, the two driving assemblies are fixedly connected to the upper end and the lower end of the tank body, the dredging assemblies are fixedly connected to the driving assemblies, and the removing assemblies are fixedly connected to the dredging assemblies. By arranging the dredging assembly and the driving assembly, power generated when liquid enters or is discharged out of the tank body can be used for sweeping the filter cartridge, and swept solid particles are pushed to the middle position of the tank body, so that the solid particles are prevented from being accumulated at the filter cartridge, and the metering accuracy is prevented from being influenced.

The invention provides a capsule vibration isolation system based on nanobubbles, and belongs to the field of vibration isolation devices. The capsule vibration isolation system based on the nanobubbles comprises a vibration isolation capsule, the vibration isolation capsule is filled with buffer liquid and solid particles, the nanobubbles are attached to the surfaces of at least part of the solid particles, and bubble attached particles are formed; wherein the bubble attachment particles are configured to collide under the action of elastic waves of the vibration source, so that nano bubbles on the surfaces of the bubble attachment particles are broken, and the bubble attachment particles generate internal energy based on collision friction and bubble breakage to increase energy dissipation of the elastic waves so as to perform vibration isolation treatment on the elastic waves of the vibration source; and the preparation device is configured to prepare the nano bubbles based on a target generation rate under the control of the far infrared control signal, and input the nano bubbles into the vibration isolation bag body through the lower surface of the vibration isolation bag body so as to change the concentration of the bubble attachment particles in the vibration isolation bag body.

The invention relates to the technical field of sewage treatment, in particular to a landfill leachate biochemical treatment pretreatment device which comprises a bottom cylinder, a lifting cover is movably arranged above the bottom cylinder, a supporting plate is fixedly arranged on the outer wall of the bottom cylinder, a telescopic air cylinder is fixedly arranged on the upper surface of the supporting plate, and a fixing plate is fixedly arranged on the outer wall of the lifting cover. And the telescopic end of the telescopic air cylinder is fixedly connected with the lower surface of the fixing plate, and a supporting seat is fixedly arranged on the inner wall of the bottom of the bottom cylinder. According to the invention, large-particle solids, suspended solids, part of organic matters, heavy metals and other impurities in the leachate can be effectively filtered out, and meanwhile, the impurities can be automatically cleaned, so that the filter bag is continuously recycled, the leachate can be continuously treated, the treatment efficiency is effectively improved, and the treatment cost is reduced. The lifting cover can be directly lifted through the telescopic air cylinder, so that the filter bag can be conveniently replaced and cleaned, meanwhile, the equipment can be conveniently overhauled and maintained, and the use effect is better.

The invention discloses a mining inorganic material grouting reinforcement device and a using method, and relates to the technical field of grouting equipment, the mining inorganic material grouting reinforcement device comprises a grouting cylinder and further comprises a stirring device, a slurry inlet is formed in the top of the grouting cylinder, a slurry pump is fixedly installed on the circumferential surface of the grouting cylinder, a slurry pumping pipe is arranged between the grouting cylinder and the slurry pump, and a slurry pump is arranged in the slurry pumping pipe. The stirring device comprises a servo motor, a rotating rod, a hollow rod, a stabilizing ring, an L-shaped rod, an extrusion rod, a stabilizing block, a supporting ring and a vibration groove, the hollow rod moves downwards to reset to drive the stabilizing ring and the L-shaped rod to move downwards to reset, and the L-shaped rod moves in a reciprocating mode to stir grout at the bottom of the grouting barrel; and by pushing overlarge solid particles, a channel at the joint can be ensured to be unblocked, and blockage and shielding of the solid particles are reduced, so that continuous flowing of slurry is ensured, and the uniformity and efficiency of grouting are improved.

A preparation system and method for an isocyanate. The preparation system comprises a cold phosgenation reactor and a hot phosgenation reactor, which are connected in series, wherein the hot phosgenation reactor is used for receiving a material flow output from the cold phosgenation reactor and allows the material flow to undergo a hot phosgenation reaction so as to obtain an isocyanate; the hot phosgenation reactor comprises a rectifying section, a reaction section and a stripping section; a material flow inlet is provided between the rectifying section and the reaction section; and the reaction section comprises a plurality of layers of trays (100), and an outer weir (102) of an overflow weir of the reaction-section tray (100) at each layer has a different angle of inclination, so as to make the residence duration of the material flow on each reaction-section tray (100) greater than a set duration. By means of the solution, the residence duration of the material flow in the reaction section can reach the set duration, and the duration of a reaction of chloroformamide can be adjusted, which can thus reduce the number of solid particles generated, thereby solving the problem of same silting up a reactor.

The invention discloses a jet type micro-droplet generation device and a micro-droplet generation method thereof, and belongs to the technical field of liquid-liquid heterogeneous / homogeneous reaction devices. The device comprises an injection pipe, the injection pipe is used for conveying a first liquid phase, the interior of the injection pipe is of a cavity structure, the injection pipe comprises a feeding section, a mixing section, a diffusion section and a feeding pipe, the feeding section, the mixing section and the diffusion section are sequentially communicated and coaxially arranged, the feeding pipe is used for conveying a second liquid phase, and the feeding pipe penetrates through the side wall of the feeding section and extends into an inner cavity of the injection pipe; a discharging opening of the feeding pipe is formed in the mixing section, and an annular flowing space is formed by the outer wall of the feeding pipe and the inner wall of the mixing section. The feeding pipe extends into the mixing section to form an annular flowing space, and a second liquid phase is dispersed into small liquid drops by fully utilizing the annular space and a strong shear flow field in the mixing section. The method is suitable for a liquid-liquid heterogeneous / homogeneous system, including a liquid-liquid heterogeneous / homogeneous reaction crystallization system generated by solid particles.

The present invention discloses a backwash solid-liquid separation device, which belongs to the technical field of solid-liquid separation devices, and comprises a horizontally arranged cylinder, a feed port is arranged above the outer surface of the cylinder, a discharge port is arranged below the outer surface of the cylinder, and a plurality of filter elements are arranged inside the cylinder along the left and right directions, and the filter elements are evenly arranged along the circumferential direction of the cylinder. When the present invention is in use, after the filtrate enters the cylinder, the driving device drives the filter element to revolve and rotate, and then the vacuum device vacuums the inside of the filter element from the right end of the filter element, and the liquid in the filtrate is drawn into the inside of the filter element, and the solid particles in the filtrate are adsorbed on the outer surface of the filter element. As the filtrate is continuously added to the feed port, the liquid in the filtrate is continuously sucked into the inside of the filter element and discharged from the right end of the filter element, and the solid particles in the filtrate are continuously adsorbed on the outer surface of the filter element, so as to achieve the purpose of continuous solid-liquid separation of the filtrate.

The present invention provides a sewage solid-liquid separation device, which belongs to the technical field of sewage treatment, and includes a primary sedimentation tank, a first pipeline, a separation box assembly, a second pipeline, an air collection assembly, a water replenishment backwashing pipeline, an oil discharge pipeline and a PLC control system; the two ends of the first pipeline are respectively connected to the primary sedimentation tank and the separation box assembly; the second pipeline, the water replenishment backwashing pipeline, and the oil discharge pipeline are respectively connected to the separation box assembly; the sewage containing solid impurities and oil pollution first enters the interior of the primary sedimentation tank, and is pumped into the interior of the separation box assembly after preliminary neutralization and precipitation. Under the continuous impact of the airflow, the oil pollution in the separation box assembly will float on the sewage surface, and the solid particles in the separation box assembly will become smaller. The present invention performs aeration in different areas of the separation box body, thereby improving the efficiency of air flotation, alternately aerating near the two side walls of the separation box body, accelerating the discharge speed of the oil pollution, and using a cutter to reduce the particle size of the solid, thereby reducing the difficulty of sludge treatment.

The utility model belongs to the technical field of transformer insulating oil detection, and particularly relates to a transformer insulating oil breakdown voltage field detection device which comprises a detection box and supporting legs, and a detection device and a filtering device are arranged in the detection box. According to the field detection device for the breakdown voltage of the transformer insulating oil, the oil temperature of the insulating oil is detected through the temperature sensor, and when the oil temperature is too low, the electric heating wire in the electric heating box is started to heat the insulating oil in the oil conveying pipe, so that the situation that the detection result is influenced due to the unstable oil temperature is avoided; a large number of solid impurity particles such as iron particles, copper particles, carbon particles and fiber particles can be generated in transformer oil due to mechanical vibration, partial discharge and the aging effect of oil paper insulation in the operation process of the transformer, so that after detection is completed, the insulating oil is conveyed into the filter box through the oil discharge pipe, and then the transformer oil is filtered. And solid particles in the insulating oil are intercepted and filtered through the filter screen, so that the service life of the insulating oil is prolonged.

The invention discloses a cutting fluid solid particle concentration measurement method and system, and relates to the technical field of particle concentration measurement, a time sliding window mode is used for carrying out fusion processing on an image sequence, synchronous acquisition of temperature and illumination intensity is combined, a dynamic temperature illumination normalized background image is constructed, and the concentration of solid particles in a cutting fluid is measured. The problems of brightness drift, image flicker and the like caused by environmental fluctuation are effectively eliminated, and the stability and adaptability of background modeling are remarkably improved. Through a disturbance identification and characteristic parameter extraction module, multi-dimensional characteristic extraction is carried out on non-particle disturbance such as bubbles, oil films and light reflection possibly occurring in the image, a disturbance characteristic set Rdr is formed, and the system can accurately identify and distinguish non-real particle signals. And through a dynamic difference denoising analysis module, a disturbance feature set Rdr is combined to carry out adaptive denoising on a difference image, a real particle structure is reserved, a non-particle interference region is eliminated, and a purified image with an enhanced edge is output, so that cleaner and more accurate basic data is provided for subsequent particle identification.

The invention relates to the technical field of self-sucking pumps, in particular to an efficient vacuum energy-saving self-sucking pump which comprises a base, a first pump cavity, a motor, a rain baffle, a first impeller, a compensation assembly and a drainage assembly, the first pump cavity, the motor and the rain baffle are sequentially installed at the upper end of the base, and the first impeller is installed at the axis position in the first pump cavity; the drainage assembly is installed at the lower end of the first impeller, and the two compensation assemblies are installed in the drainage assembly. After the drainage assembly is started, the drainage assembly is used for guiding the liquid level to overflow the first impeller and removing large-particle solids in fluid, and the compensation assembly drives the first impeller to move downwards to reduce the gap when detecting that the gap between the first impeller and the inner wall of the first pump cavity is enlarged. The tip end of the blade is easily and continuously washed by solid particles, so that the flow and lift of the core pump are reduced, and the efficiency is obviously reduced.

The invention relates to the technical field of wastewater treatment, and discloses industrial desulfurization wastewater treatment equipment and technology.The industrial desulfurization wastewater treatment equipment comprises a supporting base, a transverse rod arranged at the top of the supporting base, and a plurality of filter plates arranged on the top face of the transverse rod and provided with through holes; the multiple filter plates are connected through connecting assemblies, the top of the supporting seat is provided with a scraping plate used for scraping the outer wall of the filter cloth, the top of the supporting seat is provided with a control part, and the control part is used for synchronously driving the multiple filter plates to shake left and right and loosen solid particles attached to the filter cloth. Meanwhile, the scraping plate is driven to ascend and descend to intermittently scrape the outer wall of the filter cloth, so that particulate matters attached to the surface of the filter cloth are effectively stripped. According to the industrial desulfurization wastewater treatment equipment, materials adhered to the filter cloth can be effectively treated by shaking the filter plate left and right and intermittently scraping the filter cloth, so that a filter cake is effectively and smoothly separated from the filter cloth.

The present invention provides a salt fog solid particle concentration monitoring system for coastal environments, which adopts a salt fog solid particle concentration monitoring device and an external processing system. The device includes a hard enclosure and two valve assemblies arranged inside the hard enclosure, an adaptive tightening system and two monitoring mechanisms. The hard enclosure has an air flow channel that passes through the front and back. The two valve assemblies divide the air flow channel into three spaces along the longitudinal direction of the air flow channel. The valve assembly includes an air intake mechanism and an air outlet mechanism. When the air flow reaches a predetermined wind force level, the air flow opens the air intake mechanism and the air outlet mechanism on the windward side and enters the middle space, driving the adaptive tightening system so that the adaptive tightening system closes the air outlet mechanism on the windward side. At the same time, the air flow continues to move forward and flows through the monitoring mechanism on the leeward side. The monitoring mechanism is used to monitor the salt fog solid particle concentration of the air flow passing through.

A system includes a casing internally defining a filtering cavity and having an inlet leading into the filtering cavity and configured to be hydraulically connected downstream of a discharge pump and to receive a fluid containing microplastics. The casing also has an outlet configured to deliver the fluid contained in the filtering cavity, from which the microplastics have been substantially removed. A filtering assembly contained in the filtering cavity is crossed by the fluid entering the casing through the inlet and exiting through the outlet, thus internally trapping the microplastics. A compacting assembly is situated in the filtering cavity and configured for collecting and compacting the solid particles trapped by the filtering assembly. A pre-filtering assembly is configured to be fluidically connected upstream of a discharge pump to trap any foreign bodies that may be present in the microplastic-containing fluid.

The utility model provides a free surface enhancement type shaking liquid damper for vibration reduction of a floating type wind driven generator, which comprises a damper cavity which is a closed cavity and is filled with liquid; the solid particles are used for enhancing the surface of the liquid so as to inhibit the breaking phenomenon of the liquid during large-amplitude shaking, the solid particles float on the surface of the liquid, and the density of the solid particles is smaller than that of the liquid. The free surface of liquid can be enhanced, and then the damping performance is improved.

The invention belongs to the technical field of environmental protection, and particularly relates to a coal mine dust removal device which comprises an air inlet pipe, the air inlet pipe is transversely arranged and comprises a main body part, an air inlet part and a flow slowing part, the air inlet part and the flow slowing part are arranged at the two ends of the main body part respectively, and the flow slowing part is larger than the main body part in size; the spiral blade is eccentrically arranged in the main body part in the axial direction, the bottom of the spiral blade is in clearance fit with the bottom of the main body part, the spiral blade is driven by a power mechanism to rotate, and the conveying direction of the spiral blade is consistent with the airflow direction in the main body part; the connecting pipe is close to the flow slowing part, is arranged above the main body part and is perpendicular to the main body part, and a filtering mechanism is transversely arranged in the connecting pipe; the air outlet pipe is connected to one end of the connecting pipe, and an induced draft fan is arranged in the air outlet pipe; and the dust collection bin is arranged below the slow flow part in a communicating manner. The spiral blade is eccentrically arranged, the airflow direction can be changed through the spiral blade, and the problem of blockage caused by accumulation of solid particles in the air inlet pipe can be solved.