1719 results about "Solid particle" patented technology

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 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 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 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 invention discloses a direct coal liquefaction pump thermal wear prediction method considering a high temperature effect, and belongs to the technical field of fluid machinery and reliability engineering.The method comprises the steps that the high temperature effect is considered, a liquid phase control equation and a solid particle dynamic model are subjected to coupling iteration, and a solid-liquid two-phase flow numerical model is obtained; the method comprises the following steps: performing full flow field modeling on a fluid domain formed by flow passage components of a pump for direct coal liquefaction, and performing grid division on the fluid domain; constructing a heat-flow-solid multi-field coupling calculation system, and solving the solid-liquid two-phase flow numerical model by adopting a large eddy simulation method based on temperature correction and a discrete element method coupling method to obtain information of flow fields and particle fields at all positions in the pump; operation condition parameters are obtained, the thermal wear rate is obtained through a thermal wear rate calculation formula on the basis of flow field and particle field information of all positions in the pump, and the predicted wear amount of the flow passage component is obtained; and the prediction precision and applicability of the wear model are improved.

This disclosure relates to an annular centrifugal extractor with Solid Separation Part to Separate Solid Particles Present in Solvent Extraction Fluid. In order to remove solid particles from the solution, a solid separation part / rotating bowl is attached to rotating bowl in such a way that solid particles settle inside the solid separation part. This solid separating centrifugal extractor contains two parts: (I) upper part which acts as a liquid-liquid separator to separate aqueous and organic solution used in solvent extraction operation and (II) bottom part which acts as a solid separator to separate solid particle present in solvent extraction liquids. The bottom rotating rotor is coupled with upper rotating rotor by threading arrangement. Both the rotating rotors are confined within a stationary cylinder. Dispersion with solid particles entering inside the rotating bowl is deflected towards the wall of the rotating cylinder by deflecting baffle by centrifugal sedimentation.

The invention relates to an airlift pump system for conveying solid particles in underwater mining. The airlift pump system comprises a material collecting system, a lifting system, a pneumatic regulation and control system, a recycling system and the like. The material collecting system collects solid particles and guides the solid particles to a lifting opening of the lifting system, the material collecting system comprises a material containing hopper, a material guiding groove, a material collecting table and the like, the lifting system lifts and separates the solid particles and a liquid mixture, and the lifting system comprises an inclined hole air lift pump and a lifting pipe; the pneumatic regulation and control system comprises an electromagnetic valve, a plurality of auxiliary gas injection chambers, an optical fiber strain sensor, a microwave concentration sensor and the like. The recovery system comprises a gas-liquid separator, an axial flow turbine generator, an energy storage device, a stock bin and the like. Pipeline vibration and ore pulp concentration are monitored in real time through the optical fiber strain sensor and the concentration sensor, a PLC control algorithm is combined, the conventional operation mode, the vibration suppression operation mode and the anti-blocking operation mode are automatically switched, and the safety and stability of the airlift pump are greatly improved. The micro axial flow turbine generator is additionally arranged at the exhaust end, and tail gas kinetic energy is converted into electric energy.

The invention discloses multi-seed fruit juice particle filtering equipment and a filtering method thereof, and relates to the technical field of fruit juice filtering equipment. The invention provides multi-seed fruit juice particle filtering equipment which comprises a rack and the like, the rack is fixedly connected with a placement table, the placement table is fixedly connected with and communicates with a discharging port, the placement table is fixedly connected with a servo motor, the placement table is rotationally connected with a separation net, the placement table is connected with a sealing plate in a clamped mode, and the sealing plate is fixedly connected with hollow mounting plate frames which are circumferentially distributed at equal intervals; the hollow mounting plate frame is fixedly connected and communicated with an air column, the sealing plate is fixedly connected with suction pumps which are circumferentially distributed at equal intervals, and the sealing plate is fixedly connected with air pumps which are circumferentially distributed at equal intervals. By means of the hollow mounting plate frame, the suction pump and other components, solid particles such as pomace accumulated on the separation net can be stirred to prevent the separation net from being blocked, the blocked separation net can be dredged by means of bubbles generated by air suction, and therefore it is guaranteed that fruit juice can smoothly penetrate through the separation net; and the filtering efficiency of the particle filtering equipment is improved.

The utility model relates to the technical field of wastewater treatment, in particular to a high-temperature evaporation demulsification device for emulsion wastewater treatment, which comprises a high-temperature treatment box, a solid particle storage box arranged at the tail end of the high-temperature treatment box, a solid particle scraping structure arranged above the high-temperature treatment box, and a bubble generation rapid reaction structure arranged in the high-temperature treatment box. And the bubble generation rapid reaction structure comprises an air compression assembly, an air inlet assembly and a hollow-core bubble plate, the tail end face of the high-temperature treatment box is symmetrically communicated with quantity control material pipes, and the tail end face of the solid particle storage box is communicated with a waste material pipe opening. According to the utility model, a large number of tiny bubbles can be generated through the bubble generation rapid reaction structure, and the tiny bubbles can be rapidly attached to the surfaces of suspended solids separated by high-temperature evaporation demulsification, so that the suspended solids separated from emulsion wastewater rapidly float on the surfaces; therefore, small suspended solids can float on the surface, and the demulsification effect can be improved.

The invention discloses a system and method for producing hydrogen-rich fuel gas by coupling concentrating solar energy with biomass chemical looping gasification, and the system comprises a concentrating module which is used for concentrating solar energy to a fuel reactor; the fuel reactor is arranged at the focal plane of the condensation module and is used for reacting the biomass with the oxygen carrier solid particles to obtain synthesis gas and reduced oxygen carrier solid particles; the water vapor reactor is used for oxidizing the reduced oxygen carrier solid particles to generate hydrogen and oxidized oxygen carrier solid particles, and feeding the oxidized oxygen carrier solid particles into the fuel reactor to circulate and react with the biomass; and the synthesis gas regulator is used for receiving the synthesis gas and the hydrogen to obtain hydrogen-rich fuel gas. Energy is provided for the fuel reactor through the condensation module, oxygen carrier regeneration cycle is completed through the water vapor reactor, and the problems of nitrogen mixing and synthesis gas dilution caused by the fact that energy is provided by an air reactor in the prior art are solved.

The invention discloses a liquid collecting device for preventing circuit board etching waste liquid from precipitating, and relates to the technical field of etching waste liquid collection, the liquid collecting device comprises a collecting box, the top end of the collecting box is provided with a multi-layer treatment mechanism, the multi-layer treatment mechanism is used for putting a precipitating agent in the process of collecting the etching waste liquid and stirring the etching waste liquid during putting, and the collecting box is used for collecting the precipitating agent. The multi-layer treatment mechanism adsorbs the etching waste liquid after stirring treatment, a precipitant and the etching waste liquid are fully mixed through rotation of a treatment plate, formation of solid particles is facilitated, and the solid particles in the etching waste liquid can be buffered when the etching waste liquid is collected, so that abrasion between the solid particles and a separation structure is reduced, and the service life of the etching waste liquid is prolonged. Meanwhile, after the etching waste liquid is treated by the double-layer anti-precipitation mechanism, tiny particles in the etching waste liquid can be further adsorbed through rotation and reciprocating motion of the adsorption plate, so that the phenomenon that particle precipitation does not occur after the etching waste liquid is collected is ensured, and subsequent treatment of a user on the etching waste liquid is facilitated.

The invention designs an environment-friendly blowout device suitable for a high-salinity gas well, and belongs to the technical field of unconventional petroleum and natural gas extraction. The device comprises a two-stage concentric liquid remover and a combustion purification system which are connected in sequence. The two-stage concentric liquid remover realizes efficient separation of gas, liquid and solid phases through two-stage centrifugal separation. And a self-adaptive liquid discharge and gas control mechanism is arranged at the bottom of the two-stage concentric liquid remover, so that flow fluctuation self-adaptive sealing can be realized. Pretreated gas enters a combustion tank, is discharged through a torch pipe and is ignited, and generated combustion gas and solid particles are sprayed and purified in all directions and sprayed liquid is recycled through a spraying and recycling device above the combustion gas and the solid particles. The device integrates multiple technical functions such as buffering and pressure stabilizing, multi-phase separation, all-directional spraying purification, fire-liquid isolation, flow fluctuation self-adaption, automatic sealing, explosion prevention and fire retardance, the three-phase separation efficiency is remarkably improved, salting-out particles entering the environment are reduced, and equipment and technical supports are provided for green development of a hypersalinity gas well.

The full-automatic color master batch mixing machine comprises a mixing bin, a controller and three feeding bins are installed on the mixing bin, the three feeding bins are all communicated with the mixing bin, the top ends of the three feeding bins are all communicated with material barrels, fixing mechanisms are all arranged on the three feeding bins, and smashing and feeding mechanisms are all arranged on the three feeding bins. A crushing mechanism is arranged in the mixing bin, a discharging groove is formed in the bottom end of the mixing bin, and a blocking mechanism used for blocking the discharging groove is arranged on the mixing bin. Corresponding materials can be smashed and conveyed to the mixing bin to be mixed according to the preset mixing proportion and the automatically-calculated rotating speed through the smashing and feeding mechanism, when the mixing bin is full of the materials, the smashing mechanism can conduct secondary smashing, and finally it can be guaranteed that solid particles are smashed into the needed specification.

The invention relates to the technical field of chemical equipment, and discloses a strong heat release solid-liquid reactor, which comprises a reactor main body, a sectional heat exchange assembly and a feeding assembly, the reaction flow channel adopts a flat rectangular cross section design, the depth size is smaller than the width size, the depth direction is perpendicular to the heat exchange wall surface, and while radial heat transfer is enhanced through a micro-layer liquid film, solid particles can smoothly pass through by utilizing a larger width space. The flow channel adopts a variable cross-section expansion structure along the flow direction, so that the on-way resistance is effectively reduced, and the blockage caused by the increase of the solid content is prevented. The heat exchange assembly is physically divided into at least two independent temperature control areas through the heat insulation partition piece, and segmented precise temperature control of impurity strong cold inhibition in the initial stage and conversion promotion through heating in the later stage is achieved. According to the invention, the contradiction between low heat exchange efficiency and easy blockage of the flow channel in the strong exothermic solid-liquid reaction is effectively solved, and the reaction safety, the product purity and the yield are improved.

The invention discloses a buffering and flow stabilizing device for an iodine working medium space propulsion system, which comprises a buffering cavity, the input end of the buffering cavity is connected with the output end of an iodine storage and supply module through a pipeline, the output end of the buffering cavity is connected with the input end of a thruster module, at least one group of rectifying components is arranged in the buffering cavity, and the rectifying components are connected with the thruster module through a pipeline. A porous medium plate covering an inner side port of the output end of the buffer cavity is installed at the output end of the buffer cavity, a plurality of temperature sensors and pressure sensors are further installed in the buffer cavity, and the temperature sensors and the pressure sensors are in communication connection with a control module of the iodine working medium space propelling system; and the control module feeds back and adjusts heating parameters of the iodine storage and supply module through data collected by the temperature sensor and the pressure sensor. By means of the mode, the iodine vapor supply stability can be improved, solid particles entering the propeller are reduced, and the thrust stability is improved.

The invention discloses a slow-start pneumatic switch valve device for trichlorosilane feeding, and belongs to the technical field of material preparation process valves. Comprising a switch valve and a pneumatic actuator, linear motion of a piston rod is converted into rotation fine adjustment through a swing arm rotation compensation mechanism, a solid / microgroove sealing ring and a sliding cavity wall are always kept on a theoretical contact line, abrasion microgaps are automatically compensated, zero-clearance sliding in the whole life cycle is achieved, and manual clearance adjustment is avoided; the solid sealing ring adopts surface-surface contact, so that the unit pressure is reduced by more than 50%, and the wear rate is obviously reduced; the omega-shaped groove of the microgroove sealing ring converts solid particles (10-50 microns Si) into groove edge elastic sealing, and the wear rate is reduced by 40% again; a sealing surface is provided with a uniform oil film, the dynamic and static friction coefficient difference is reduced, crawling / jumping in a 0-20% opening low-speed stage is eliminated, true slow starting is achieved, the water hammer effect during trichlorosilane feeding is avoided, the sealing surface is provided with the uniform oil film, the dynamic and static friction coefficient difference is reduced, and crawling / jumping in the 0-20% opening low-speed stage is eliminated.

The invention discloses a performance test method for high-precision filtered oil of steam turbine oil, and particularly relates to the technical field of lubricating oil testing, and the performance test method comprises the following steps: S1, constructing a closed-loop test system and preparing a reference oil sample, S2, injecting solid particles and soluble colloid pollutants in a programmed collaborative manner to simulate a dynamic pollution load, and S3, testing the performance of the high-precision filtered oil of the steam turbine oil. S3, multi-stage composite working condition circulation including high-temperature and high-flow, rapid cooling, pressure fluctuation and high-temperature and low-pressure stages is operated, and upstream and downstream particle distribution, moisture and pressure difference of filtered oil are monitored in real time; and S5, generating a comprehensive report containing the dynamic dust holding capacity, the efficiency curve, the performance influence coefficient and the simulated life. According to the invention, the comprehensive performance and long-term reliability of the filtered oil can be evaluated more truly and comprehensively.

The invention relates to the technical field of waste gas treatment, in particular to a waste gas treatment device for furan phenol processing and a treatment method thereof.The waste gas treatment device comprises a deposition box, supporting legs are fixedly connected to the bottom of the deposition box, an equipment box is fixedly connected to the top of the deposition box, and a placement table is arranged in the deposition box; a placing table is arranged on the rack, a total transmission assembly used for treating particulate matter is arranged on the placing table, two transmission columns and two swing rods are arranged in the total transmission assembly, and power can be provided for treating the particulate matter through cooperation of the transmission columns and the swing rods. Solid particles are blocked through a filter plate, and a scraping strip scrapes the blocked solid particles into a placement box under the action of rotation of a placement table, so that the situation that the solid particles enter waste gas, the solid particles are deposited on parts such as a waste gas pipeline and an elbow, airflow resistance is increased, and equipment is blocked is avoided, and the waste gas treatment efficiency is improved.

The utility model relates to the field of daily chemical product containers, in particular to a quantitative cover of a container for solid particles, which is a cover body covering the container, the cover body comprises a main cover for pre-storing and discharging and an external expansion connecting seat for quantitatively discharging, the main cover is connected with the external expansion connecting seat through a side wall, and the main cover is connected with the external expansion connecting seat through the side wall. A longitudinal partition plate is arranged in the main cover, an inclined partition plate is arranged in the external expansion connecting base, and a buffering opening is formed by the bottom of the inclined partition plate and the side wall. A pre-storage opening is formed by the top of the inclined partition plate and the side wall; the bottom of the longitudinal partition plate and the top of the inclined partition plate form a material blocking opening. The top of the longitudinal partition plate and the side wall form a discharge hole; the device is used for solving the problems that product pouring depends on double-hand joint operation, the force is difficult to control during product pouring, and the pouring amount is difficult to keep stable and quantitative. And when the container is poured by one hand, the solid particles in the container are quantitatively intercepted in the third space, so that the effect of quantitatively taking materials from the discharge port is achieved.

The invention relates to the technical field of ultra-high performance concrete, in particular to an ultra-high performance concrete strength prediction method considering a particle close packing effect, comprising the following steps: S1, acquiring a data set to be measured, the data set comprising a macroscopic proportioning material and a material particle gradation; s2, according to the particle size distribution of the solid particle material in the data set, calculating the volume percentage of which the cumulative volume is smaller than a preset particle size through a corrected Andersen-Andersen model; s3, calculating the stacking compactness according to the volume percentage with the accumulated volume smaller than the preset particle size; and S4, inputting the stacking compactness and the to-be-measured data set into a prediction model to obtain a predicted value of the compressive strength of the ultra-high performance concrete. And by introducing microstructure quantitative indexes such as grain composition and stacking compaction parameters as model input, the prediction precision and reliability are remarkably improved.

The embodiment of the invention provides a bag type dust collector with a preliminary filtering and collecting structure, which comprises a main body with a filtering cavity, a collecting hopper upwards arranged in the filtering cavity along the flow direction of boiler flue gas in the main body, and a filtering bag assembly arranged in the filtering cavity opposite to the collecting hopper and arranged at the downstream of the collecting hopper, the primary filtering mechanism is arranged between the collecting hopper and the filtering bag assembly; and the preliminary filtering mechanism is configured to preliminarily filter the boiler flue gas collected by the collecting hopper. According to the boiler flue gas filtering device, the preliminary filtering mechanism is used in cooperation with the filtering bag assembly and the collecting hopper, so that solid particles in the boiler flue gas are removed through the preliminary filtering mechanism before the boiler flue gas is filtered, and the situation that the filtering bag assembly is blocked can be remarkably reduced.

The utility model belongs to the technical field of separation devices, and particularly relates to a dust and solid particle separation device which comprises a shell and a partition plate, the partition plate is arranged in the shell, and the interior of the shell is divided into a first separation chamber and a second separation chamber by the partition plate. A vent hole used for communicating the first separation chamber with the second separation chamber is formed in the top of the partition plate, a large-aperture filtering assembly is arranged in the first separation chamber, and a driving assembly used for pulling the large-aperture filtering assembly is arranged in the middle of the first separation chamber. According to the waste gas treatment device, waste gas firstly passes through the large-aperture filtering assembly, solid particles in the waste gas are separated out, then the waste gas enters the second separation chamber, dust in the waste gas is settled through spraying of the spraying assembly, and the dust and the solid particles are separated respectively, so that the solid particles can be prevented from blocking the dust discharging pipe; and the dust can be prevented from blocking the large-aperture filter assembly to influence the service life of the large-aperture filter assembly.

The utility model discloses a sealing piece of a die nut opening, and relates to the technical field of sealing pieces. The die comprises a die body, feeding screw openings are formed in the two sides of the upper surface of the die body and used for filling materials, sealing bolts are in threaded connection with the interiors of the upper ends of the two feeding screw openings and used for sealing the feeding screw openings, and the sealing assembly comprises rubber pads fixedly installed on the outer walls of the upper ends of the sealing bolts. The outer wall of the upper end of the feeding screw opening is fixedly connected with a limiting plate. According to the utility model, through the tight attachment of the rubber pad and the sealing pad and the pressing effect of the limiting assembly, the sealing performance of the die nut opening is obviously improved, the leakage of fluid or solid particles is effectively prevented, a sealing tape and a sealant are not needed for sealing, the sealing operation of the die nut opening is simplified, the working efficiency is improved, and meanwhile, the sealing performance of the die nut opening is improved. And the trouble that the residual sealing tape and the sealant need to be cleaned before next use is also avoided.

The application discloses a new energy special filtering type corrugated pipe stop valve, and aims to solve the problem of poor sealing effect between a valve core and a valve seat in the prior art. The application solves the above technical problem through the following technical scheme: comprising a valve body and a valve cover, the valve body and the valve cover cooperate to form a cavity, the two sides of the valve body are respectively provided with a water inlet channel and a water outlet channel which are communicated with the cavity, the water inlet channel is connected with an inclined blowdown channel, and the blowdown channel is communicated with the cavity through a vertical channel; a valve rod assembly comprising a valve rod, the valve rod is arranged in the valve cover, and the bottom of the valve rod is provided with a ball head valve core; a filter assembly comprising a filter screen arranged in the blowdown channel. Through the arrangement of the filter screen, the medium can be filtered, the solid particles are reduced to adhere to the sealing abutting ring, the sealing performance between the ball head valve core and the sealing abutting ring is improved, and the sealing effect between the ball head valve core and the valve seat is improved.

The utility model discloses a wheat-steeping ventilation overflow wheat-water separation water-saving device, which relates to the technical field of beer manufacturing equipment and comprises a wheat-steeping tank body, a separation component and a blanking groove body, a protection plate is arranged on the wheat steeping tank body, connecting frames are arranged on the inner wall of the protection plate, the connecting frames are evenly distributed in the circumferential direction with the protection plate as the circle center, the number of the connecting frames is multiple sets, and mounting rings are arranged between the multiple sets of connecting frames; the separation assembly is arranged on the barley steeping tank body and is used for separating barley from barley water in a use state; and the blanking groove body is arranged on the wheat steeping tank body. According to the utility model, the separation assembly is arranged, so that solid particles such as barley can be effectively intercepted in the barley steeping tank body in the overflow process and are prevented from flowing out along with water, more thorough wheat-water separation can be realized, and the separation efficiency is improved; and fluid dynamic characteristics in the wheat steeping tank body can be optimized, so that water flow is smoother, and meanwhile, the possibility that wheat is brought out by the water flow is reduced.

The invention relates to the technical field of environmental protection equipment, in particular to an organic matter pollution treatment device for solid waste particles. The supporting pipe body is provided with an air inlet and an air outlet; the movable pipe body can be rotatably arranged in the supporting pipe body; an annular discharge chamber is formed between the movable pipe body and the supporting pipe body and is used for material circulation; the blades are located on the outer side of the movable pipe body. The blades can be driven to rotate; the first electrode is of a net-shaped structure. The electrode I wraps the outer wall of the supporting tube body; the electrode II is arranged in the movable tube body; the driving mechanism is in transmission connection with the movable pipe body and the blades and used for driving the movable pipe body and the blades to rotate. By adopting the static packed bed reactor, the problems that solid particles are not uniformly mixed, gas mass transfer is blocked and the treatment efficiency is low in an existing static packed bed reactor can be solved, and high-efficiency and uniform repair of pollutant particles with high water content and different particle sizes is realized.

The utility model relates to the technical field of wastewater treatment devices, and discloses a wastewater treatment device for feldspar powder production, which comprises a control platform, a lower treatment cylinder is arranged on the rear side of the control platform, an upper treatment cylinder is fixedly mounted at the top of the lower treatment cylinder, and a top cover is arranged at the top of the upper treatment cylinder. A four-corner support is fixedly mounted at the top of the top cover, a feeding hopper is fixedly mounted at the top of the four-corner support, and a conveying pipe is arranged at the bottom of the feeding hopper in a communicating mode. By arranging the large arc-shaped groove and the round collecting box, solid particles can be collected in a centralized mode, the solid particles can be easily taken out by pulling a U-shaped handle in a matched mode, cleaning and maintaining are convenient, a water guide plate is connected in a matched mode, liquid subjected to preliminary filtering smoothly flows into the water collecting barrel, meanwhile, a first filtering layer and a second filtering layer in the water collecting barrel form double filtering, and the filtering effect is good. The discharged water is ensured to be clear and pure, and the effects of improving the operation convenience and improving the wastewater treatment quality are achieved.

The utility model relates to the technical field of salt mine drilling accessories, concretely to salt mine drilling water solution mining anti -blocking water injection head, including the water injection pipe head of salt mine drilling water solution mining, the top end coaxial of water injection pipe head is provided with the connecting socket, the bottom coaxial of water injection pipe head is installed with the water injection end, the utility model discloses the water injection pipe head and the water injection cavity that sets up inside it are set up, cooperate the anti -blocking water injection inner tube of embedding in the bottom of water injection pipe head and the spiral feeding rod of installing in the anti -blocking water injection inner tube, make when salt mine drilling water solution mining, the deceleration motor can drive spiral feeding rod to rotate continuously in the anti -blocking water injection inner tube, effectively prevent solid particles or impurities from accumulating and blocking at the water injection end when salt mine drilling, the water inlet hole of anti -blocking water injection inner tube outer wall opening guarantees the water in water injection cavity can smoothly enter anti -blocking water injection inner tube and transport to the water injection end, and the connecting socket of water injection pipe head top end coaxial setting is convenient for with external water injection equipment stable connection.

The utility model discloses a filter plate convenient to clean and dredge, which comprises a filter plate main body, the surface of the filter plate main body is provided with a filter groove, the bottom end of the surface of the filter plate main body is symmetrically provided with liquid outlets in a penetrating manner, and the bottom end of the inside of the filter groove is symmetrically provided with reflux inlets extending to the inside of the liquid outlets in a penetrating manner. A quick dredging mechanism is arranged in the reflux inlet, an assembling and butting mechanism is arranged on the surface of the filter plate main body, and the quick dredging mechanism comprises a flow-guiding filter assembly and a pressing and resetting assembly; by means of the designed push plate, the penetrating rod, the filtering ring and the telescopic spring, seafood can quickly push out and clean solid particles blocked in the backflow opening, the dredging effect is achieved, meanwhile, the designed guide groove and the guide rod are matched, the guide effect can be achieved when the push plate moves, and compared with the prior art, the seafood dredging device has the advantages of being simple in structure and convenient to use. And solid particles clamped in the reflux inlet can be quickly cleaned on the premise that the filter cloth is not detached, so that the service life of the filter cloth is prolonged.

The utility model relates to the technical field of vacuumizing devices, and discloses a catalyst vacuumizing device for an aromatic hydrocarbon combined workshop, which comprises a catalyst tank, and the outer wall of the catalyst tank is fixedly connected with a fixed pipeline. The catalyst vacuumizing device for the aromatic hydrocarbon combined workshop is provided with the filter screen frame, the filter screen frame is easy to disassemble and assemble, when a filter screen needs to be cleaned or replaced, an operator can quickly disassemble the filter screen frame, the filter screen is convenient to clean and maintain, and the filter screen and an activated carbon filter screen are combined for use, so that the catalyst vacuumizing device is convenient to use. According to the water ring vacuum pump, gas extracted from the catalyst tank can be subjected to dual purification, impurities such as solid particles and dust are intercepted by the filter screen, organic impurities, peculiar smell and the like in the gas are effectively adsorbed by the activated carbon filter screen, the purified gas enters the water ring vacuum pump, damage of the impurities to the pump body is reduced, and the service life of the water ring vacuum pump is prolonged; and the requirements of people are met.