35results about How to "Avoid filter effects" patented technology

The utility model provides a cell filter and a cell filtering device, and relates to the field of medical treatment. Wherein the cell filter comprises a filter pipe, a mounting seat, a filter membrane and a pressure release valve, the filter pipe is provided with a mounting position and a liquid discharge hole, the mounting seat is arranged in the mounting position and is in sealing connection with the filter pipe, the mounting seat is provided with a filter hole and a pressure release hole, the filter membrane is laid on the filter hole, the pressure release valve is arranged in the pressure release hole, and the filter hole is communicated with the liquid discharge hole. Or the pressure relief hole is communicated with the liquid discharge hole; the filtering function of the cell filter is achieved by communicating the filtering hole with the liquid discharging hole, when the filtering membrane is not smooth in filtering or blocked, the effect of discharging blocked liquid is achieved by communicating the pressure relief hole with the liquid discharging hole, the situation of not smooth filtering or blocking is avoided, and the success rate of CTCs detection is increased.

The invention discloses textile printing and dyeing wastewater recovery treatment equipment which comprises a frame, a supporting cylinder and a rotating cylinder, the supporting cylinder is rotationally installed in the frame, the rotating cylinder is supported on the supporting cylinder, the rotating cylinder is rotatable, end covers are fixed to the two ends of the rotating cylinder, gear ends are fixed to the outer portions of the end covers, water diversion pipes are inserted in the axes of the gear ends, and the water diversion pipes are connected with the supporting cylinder. And the water conduit is used for conveying wastewater to pass through the rotary drum. The inner filter cylinder and the inner cleaning part in the rotary cylinder rotate along with the rotary cylinder, the inner net cylinder does not rotate and does telescopic motion, and cleaning pieces correspond to inner baffle rings, so that when the cleaning pieces clean fluff on the inner side of the inner net cylinder, it is ensured that no waste water moves outwards at the cleaning position, and the cleaning effect is good. And during the reciprocating motion of the inner net cylinder, different positions of the inner net cylinder are cleaned, so that the problem of filtration is solved, and the problem of blockage is also avoided.

The utility model relates to a filtering device for recycling wire drawing liquid, which comprises a cylinder shell capable of completing multiple filtering of the wire drawing liquid in sections, the cylinder shell comprises a coarse filtering shell positioned at the axial upper section, a connecting guide shell positioned at the axial middle section and a fine filtering shell positioned at the axial lower section, a coarse filtering assembly, an adjustable communicating pipeline and a fine filtering assembly are respectively arranged in the coarse filtering shell, the connecting guide shell and the fine filtering shell which are connected in sequence, and the coarse filtering assembly and the fine filtering assembly are used for purifying the wire drawing liquid in a manner of constructing a two-stage filtering structure; the fine filtering assembly synchronously completes uninterrupted fine filtering and filter residue cleaning in a partitioned filtering manner; the axial upper end surface and the axial lower end surface of the cylinder shell are respectively provided with a flow inlet and a flow outlet which are used for limiting the inflow and the outflow of wire drawing liquid. The wire drawing liquid filtering device can continuously and continuously perform efficient and high-quality multiple filtering on the wire drawing liquid.

The utility model discloses a drainage pipeline large-volume garbage intercepting device for municipal engineering, which belongs to the technical field of pipeline pollution discharge and comprises a garbage collecting frame, a driving shaft is rotatably connected between the inner walls of the garbage collecting frame, and the outer wall of the driving shaft is in threaded connection with an unloading scraping strip; a discharging groove is integrally formed in one side of the top of the garbage collecting frame, an insection scraper is correspondingly arranged over the discharging groove, and a filter screen is installed on one side of the insection scraper. The filter screen is arranged at the water inlet of the pipeline, and the outer wall of the filter screen is scraped and washed by the insection scraper which moves up and down, so that any type of garbage can be washed off under the action of pressure or decomposed into garbage which is of a small part structure and cannot continue to circulate; and the garbage is collected into the garbage collecting frame by the discharging scraping strip which is rotationally scraped and washed at the bottom and the discharging groove of the fixed structure, so that the filtering and water passing effects of the filter screen are prevented from being interfered, and the passing capacity of the pipeline is further greatly improved.

The invention discloses a preparation method of a lavender hydrolat laundry detergent with active ingredients, which comprises the following steps: S1, preparing materials, using deionized water as a solvent, preparing lavender hydrolat as a flavoring agent, providing natural fragrance, improving the antibacterial property of the laundry detergent, using a surfactant for removing stains, and using the surface active agent for cleaning; the clothes are softer and more comfortable by using fabric care molecules, and the washing effect is improved by using a builder; s2, weighing the raw materials: metering and weighing the deionized water, the lavender hydrolat, the surfactant, the fabric care molecules and the builder, so that the weight of the raw materials reaches the formula proportion; the laundry detergent has the advantage of being convenient to use, and the problems that in the preparation process of an existing laundry detergent, synthetic essence is often used, too many chemical components possibly exist, potential risks are caused to the environment and human health, the content of active components in the existing laundry detergent is low, the dirt-removing ability of the laundry detergent is reduced, and the cleaning effect of clothes is affected are solved.

The invention discloses a method for determining formaldehyde in a water-based adhesive for cigarettes, which belongs to the technical field of formaldehyde determination, and comprises the following steps: sample pretreatment: adding a water-based adhesive to be determined into an outer tube of a direct extraction sample introduction bottle, adding water, uniformly shaking and dispersing, then adding a derivatization reagent solution, carrying out vortex uniform mixing, then carrying out ultrasonic extraction, and simultaneously carrying out formaldehyde extraction and derivatization reaction, a to-be-detected sample is directly obtained after the inner tube is pressed down; and performing liquid chromatographic analysis: directly loading the sample to be detected on a machine for sample detection. According to the method, extraction and derivatization reaction of formaldehyde in the water-based adhesive are carried out at the same time, traditional centrifugation, filtration and solution transfer are not needed, jelly emulsification generated after acetonitrile is directly added into the water-based adhesive is avoided, the use amount of toxic 2, 4-dinitrophenylhydrazine serving as a common derivatization reagent is reduced, meanwhile, complete derivatization reaction of formaldehyde is ensured, and the yield of the water-based adhesive is increased. The sample pretreatment process is simplified, and the detection efficiency is improved.

The utility model provides a filter element quick-release tool for a process filter, which comprises a main body and a wrench mouth, and the main body is a rod piece; the wrench port is arranged at the tail end of the main body, a through port is formed in the radial direction of the main body, a bayonet is formed in one side parallel to the axial direction of the main body, and the bayonet of the wrench port is communicated with the through port; wherein the wrench port penetrates through the cross brace of the filter element through the bayonet and is matched with the through port to limit the cross brace. According to the utility model, the L-shaped special-shaped wrench mouth is adopted, so that the filter element cross arm can be conveniently pulled out from the filter after being hooked by an L-shaped block in the dismounting process, and the problems that the efficiency of dismounting the filter element by using a movable wrench by a maintainer is low, the fastening effect of the filter element after remounting is poor, leakage is easily caused, and the process filtering precision is reduced are solved; and the risk hidden danger that a worker enters a limited space in the process filter to assemble and disassemble the filter element is also reduced.

The utility model discloses an adjustable ventilation curtain wall structure, which belongs to the field of ventilation curtain walls, and comprises a double-layer curtain wall arranged on a support frame and ventilators arranged at the upper end and the lower end of the double-layer curtain wall, and one side of the double-layer curtain wall close to the support frame is fixedly connected with a mounting frame. Longitudinal adjusting grooves are formed in the positions, corresponding to the four corners, of the side, close to the supporting frame, of the mounting frame, transverse adjusting grooves are formed in the positions, corresponding to the longitudinal adjusting grooves, of the supporting frame, and sliding bolts penetrating through the longitudinal adjusting grooves are slidably connected into the transverse adjusting grooves. According to the adjustable ventilation curtain wall structure, through the arrangement of the transverse adjusting groove and the longitudinal adjusting groove, the position of the double-layer curtain wall relative to the supporting frame is allowed to be flexibly adjusted horizontally and longitudinally in the installation process, the accuracy of the installation position is ensured, and convenience is provided for follow-up joint filling operation.

The utility model discloses an aggregate crushing and mixing integrated equipment relates to aggregate processing technical field, including support, the outer top surface fixed of support has the mixing box, the outer top surface fixed and the through connection of mixing box has the crushing box, the inside of support is provided with screening subassembly, the inside symmetrical rotation of crushing box installs and has rotary axle no.

The invention relates to the technical field of waste gas treatment, and discloses a high-temperature waste gas treatment device with a heat recovery function, the high-temperature waste gas treatment device comprises a rack and a treatment bin fixedly connected to the left wall of an inner cavity of the rack, the inner wall of the treatment bin is rotatably connected with a toothed ring screen, and the bottom of the treatment bin is fixedly connected with an exhaust pipe; a filter cartridge is inserted into the exhaust pipe in a threaded mode, an L-shaped air inlet pipe with the right end abutting against the toothed ring screen in a sliding and sealing mode is installed in the middle of the treatment bin, and a pressure sensor is installed on the upper wall of an inner cavity of the right end of the air inlet pipe. Waste gas is filtered firstly through the toothed ring screen, and when the toothed ring screen is blocked, the adjusting assembly automatically drives the flow guide plate and the toothed ring screen to deflect and cooperates with vibration cleaning of the scraper blade and back flushing of the toothed ring screen, so that online efficient cleaning of an air inlet filtering part is achieved; the problem of poor filtering and heat exchange effects caused by the fact that a traditional waste gas treatment device firstly exchanges heat and then sprays and filters is solved.

This utility model relates to a hemp feeding mechanism for a hemp combing machine, belonging to the field of hemp yarn processing. It includes a carrying body; a conveying mechanism located inside the carrying body; a guiding component located on the upper surface of the carrying body; and a cleaning mechanism located on the right side of the carrying body, comprising a mounting box located on the right side of the carrying body; a negative pressure module connected to the lower surface of the mounting box; and two pipes connected to the front and rear surfaces of the mounting box, with the other ends of both pipes penetrating the carrying body. Through the cleaning mechanism, this utility model utilizes the cooperation between the negative pressure module and the conical sleeve to automatically extract hemp fibers accumulated in the roller groove, preventing short fibers from converging and reducing the roller's gripping force, ensuring the roller is always in a highly efficient working state, reducing conveying failures caused by fiber accumulation, and improving the stability and reliability of the hemp feeding mechanism.

The utility model discloses a cooling device and system, and solves the technical problem that in the cooling process of a frequency converter at present, only a booster fan is arranged indoors, so that indoor air circulation is not smooth, and the cooling effect is poor. Comprising a first frequency conversion chamber, a second frequency conversion chamber, an air guide piece and a heat exchange piece. The first frequency conversion chamber is provided with a first accommodating cavity; the second frequency conversion chamber is provided with a second accommodating cavity; the air guide piece is provided with an air guide channel communicating with the first containing cavity and the second containing cavity. The heat exchange piece is arranged in the air guide piece; the air inlet end of the frequency converter is located in the first containing cavity, and the air outlet end of the frequency converter is located in the second containing cavity, or the air inlet end of the frequency converter is located in the second containing cavity, and the air outlet end of the frequency converter is located in the first containing cavity. The circulation path formed by the first frequency conversion chamber, the second frequency conversion chamber and the air guide piece enables the whole overweighing air volume to be constant, the final pressure is constant, indoor negative pressurization is avoided, and the indoor environment is improved.

The utility model discloses a composite efficient oil separator core which comprises a filter core, a heating device is arranged at the top of the filter core, a heat conduction copper pipe is fixedly connected to the surface of the heating device, a heating pipe is fixedly connected to the interior of the heating device, a control panel is fixedly connected to the interior of the heating device, and a display screen is embedded in the top of the control panel. A button is arranged at the top of the control panel, a magnetic attraction groove is fixedly connected to the side face of the heating device, a magnetic attraction block is connected into the magnetic attraction groove in a magnetic attraction mode, and a cover plate is fixedly connected to the surface of the magnetic attraction block. According to the composite efficient oil separator core, the heating device is arranged at the top of the filter core, so that heating can be carried out through the heating device, heat can be dissipated into the device through the heat conduction copper pipe, water in the filter core is not prone to condensation, the filter core is prevented from being used in a cold position, and the service life of the filter core is prolonged. And therefore, the anti-freezing filter element has a relatively good anti-freezing effect.

The invention discloses a centrifugal filtration type film forming device which comprises a barrel body, the barrel body comprises a first barrel wall, a second barrel wall and a third barrel wall, the second barrel wall is arranged around the first barrel wall, the third barrel wall is arranged around the second barrel wall, and gaps are formed among the first barrel wall, the second barrel wall and the third barrel wall. A spacing area between the first barrel wall and the second barrel wall is a stock solution area, a spacing area between the second barrel wall and the third barrel wall is a filtrate area, a plurality of filtering holes are formed in the second barrel wall, the stock solution area and the filtrate area are communicated through the filtering holes, a filtering membrane and a filtering plate are installed at the filtering holes, one side of the filtering membrane is the stock solution area, and the other side of the filtering membrane is the filtering plate. A barrel cover matched with the barrel body in size covers the barrel body, and the barrel body is connected with a power driving piece. Efficient filtration is achieved through centrifugal force, the industrial rapid treatment requirement is met, accurate filtration is achieved by replacing the filter membrane, and the problem of membrane forming quality control is solved.

The application relates to the technical field of intelligent detection, and discloses a system and a method for adjusting a recognition algorithm after intelligently detecting and recognizing a scene, wherein the method comprises the following steps: acquiring current frame detection data and extracting multi-dimensional scene feature descriptors, and maintaining a scene descriptor time sequence cache queue; performing time sequence difference analysis on the queue to generate a scene mutation prediction signal; based on the signal state, pre-fetching a target scene recognition algorithm parameter set to a pipeline preparation register; when a new frame arrives, promoting the parameter set in the preparation register to an effective parameter and performing feature separation operation; performing multi-dimensional target recognition on each feature response separation graph and calculating a weighted fusion confidence score; screening a candidate target region and outputting a detection and recognition result.

The utility model provides emergency treatment equipment for percolate of a refuse landfill, which belongs to the technical field of percolate treatment and comprises a base and a fixed support fixed at the top of the base, and a treatment box for filtering and purifying the percolate is arranged at the top of the base and positioned on the inner side of the fixed support. A filtering mechanism and a degradation mechanism are arranged in the treatment box, and a rotating mechanism for rotating the filtering mechanism and the degradation mechanism is arranged at the top of the base and located at the bottom of the treatment box. The driving motor drives the driving rod to rotate, and then the first belt wheel, the second belt wheel, the rotating belt, the first gear, the second gear and the third gear are in synchronous linkage, so that the first rotating rod and the second rotating rod drive the filter cartridge and the stirring blades to rotate to achieve the filtering and degrading effects, and the filtering and degrading effects are further improved.

The utility model discloses a high-boiling tetraethoxysilane filtering device which comprises a plate-and-frame filter, a filtering discharge pipe is arranged at the lower part of the plate-and-frame filter, the filtering discharge pipe is connected with a stirring tank through a circulating pipeline, a stirrer is arranged in the stirring tank, the top end of the stirrer is connected with a machine seal, and the bottom of the stirring tank is connected with a discharge pipe. The discharging pipe is connected with a circulating pump, the circulating pump is connected with a plate-and-frame filter, and the plate-and-frame filter is connected with a nitrogen purging pipeline. Compared with the prior art, a traditional filter bag filter is improved into the plate-and-frame filter, materials can be fully circulated in the plate-and-frame filter press and the stirring tank, impurities can be fully enriched between the plate-and-frame filter cloth, and products can be completely filtered and recycled. And in the impurity collecting stage, discharging is carried out only after nitrogen purging is completed, an operator collects and treats solid impurities, and certain promotion is achieved for environment protection and the field working environment.

The utility model discloses a flue gas filtering assembly for waste incineration, relates to the field of waste incineration treatment, and aims to solve the problems that in the prior art, flue gas is filtered only through a filter screen, but the amount of particulate matters and dust in the flue gas generated by incineration is large, blockage is caused in a short time when the filter screen is adopted for filtering, and the waste is wasted. Therefore, the smoke discharge is influenced. An L-shaped smoke inlet pipe is fixedly connected to the lower end of the filtering barrel, the upper end of the L-shaped smoke inlet pipe penetrates through the lower end face of the filtering barrel and extends to the lower end in the filtering barrel, an annular pressure water pipe is fixedly arranged in the middle of the interior of the filtering barrel, and a plurality of atomizing nozzles are fixedly connected to the inner side of the annular pressure water pipe in an annular array mode; a filter screen is fixedly arranged at the upper end of the middle of the interior of the filter barrel, a limiting pipe is fixedly arranged in the middle of the filter screen, a rotating shaft is rotationally connected into the limiting pipe, and the lower end of the rotating shaft extends out of the lower end face of the filter screen and is fixedly connected with a plurality of scraping rods.

The invention discloses a method for preparing MHP from laterite-nickel ore by using active magnesium oxide and recycling tail water, which comprises the following steps: carrying out high-pressure acid leaching treatment on the laterite-nickel ore, removing iron and aluminum to obtain a solution to be refined, adding a certain amount of active magnesium oxide, and fully reacting; concentrating the reacted mixed solution to obtain clear liquid and solid-containing slurry; the solid-containing slurry is filtered and washed to obtain MHP, clear liquid and filtrate, after water washing liquid is collected, a certain amount of tail water treatment reagent is added, the filtrate is filtered after reaction, the filtrate is recycled as acid leaching water or washing water, magnesium and calcium-containing solid residues obtained after tail water treatment are subjected to reselection to separate out by-products of calcium sulfate and magnesium hydroxide, and magnesium hydroxide is calcined to obtain active magnesium oxide; further, the method is used for preparing the MHP. The method for preparing the MHP from the laterite-nickel ore by using the active magnesium oxide and recycling the tail water is simple in process and low in cost, the production efficiency can be remarkably improved, and recycling of magnesium resources and water resources is achieved.

The filtering device comprises a hollow filtering tank, a conical stainless steel filtering net is installed in an inner cavity of the filtering tank, the middle of the stainless steel filtering net is distributed in a downward protruding mode, and the inner cavity of the filtering tank is divided into a water inlet cavity located on the lower portion and a water outlet cavity located on the upper portion through the stainless steel filtering net; a water inlet pipe communicated with the water inlet cavity is arranged on the side wall of the lower portion of the filtering tank and provided with a water inlet valve, and a water outlet pipe communicated with the water outlet cavity is arranged at the top of the filtering tank and provided with a water outlet valve. According to the utility model, the conical stainless steel filter screen is arranged, and the water body filtering contact area can be increased by utilizing the shape that the middle part of the conical stainless steel filter screen protrudes downwards, so that the impurity filtering effect is greatly improved; and meanwhile, the water flow is filtered from bottom to top, so that the filtered and intercepted impurities can automatically settle down by virtue of self weight, and the impurities are prevented from blocking meshes to influence filtering, thereby improving the filtering efficiency.

The invention relates to the technical field of air conditioning equipment, in particular to a fresh air purification combined type energy-saving air conditioning all-in-one machine which comprises an outer shell, an air inlet module comprises a mixed air inlet pipeline, a fresh air inlet pipeline and a circulating air inlet pipeline, and the opposite faces of the fresh air inlet pipeline and the circulating air inlet pipeline are each provided with an insertion opening; a partition plate is slidably mounted between the fresh air inlet pipeline and the circulating air inlet pipeline, a rotating shaft is rotatably mounted at one end of the mixed air inlet pipeline, an electric control air cylinder is mounted at the upper end of the partition plate, two resistance rods are mounted on the side face of the partition plate through an L-shaped sliding rail and a sliding block, and the rotating shaft is fixedly sleeved with a resistance wheel. According to the air conditioning equipment, the partition plate is driven to move between the fresh air inlet pipeline and the circulating air inlet pipeline, flexible switching of three air inlet modes of fresh air inlet, circulating air inlet and mixed air inlet is achieved, the proper air inlet mode can be selected according to different use scenes and requirements, and the applicability of the air conditioning equipment is improved.

The present application discloses a data filtering method and device, which relates to the field of information processing technology. The specific implementation scheme is: in response to receiving a filtering request for a user's first product set, obtaining the user's first product pair set and user behavior information; based on the user repurchase selection model and the user behavior judgment model, combining and filtering the first product pair set to generate a filtered first product pair set and an unfiltered first product pair set; according to the product filtering strategy, selecting the unfiltered first product pair set to obtain a second product pair set; generating the user's second product set based on the filtered first product pair set and the second product pair set. This scheme fully considers user behavior and product attributes, analyzes the user's personalized repurchase habits, and judges the user's behavior information, making the filtering more refined and accurate, and achieving a better user experience effect.

The utility model relates to the technical field of food inspection, and discloses a multi-channel filtering device for food inspection pretreatment, the multi-channel filtering device comprises a bottom plate, the top of the bottom plate is fixedly connected with a filtering mechanism, the filtering mechanism comprises a filtering cylinder, the filtering cylinder is arranged at the top of the bottom plate, and a feeding cavity is formed in the filtering cylinder. Through the design of the filtering mechanism, crushed food sample particles are put into a feeding cavity on a filtering cylinder, and during filtering, the work of an oscillation motor is matched with the elastic acting force of a spring, so that the rapid shaking of the filtering cylinder can be effectively realized, the sample particles meeting the standard can be promoted to rapidly fall off through a filtering plate, and the filtering purpose is achieved; in the filtering process, different food sample particles can be respectively fed into different feeding cavities to be synchronously filtered, so that the situation that time is consumed due to the fact that different food samples need to be filtered in sections in a single-channel filtering device is avoided.

This invention relates to the field of electronic digital data processing technology and discloses a risk identification and early warning method and system for border inspection terminal operation areas. The method includes: acquiring the perception tags, spatiotemporal trajectories, and business execution stub data of controlled targets; extracting category identification identifiers and kinematic parameters; calculating feature distribution parameters using a kinematic constraint model and comparing them with a preset logical threshold; determining misidentified tags; triggering logical correction operations; resetting the category identification identifiers using task instructions to generate a smooth sequence; reconstructing the topology of the logical judgment area based on the operation's spatiotemporal density parameters; calculating displacement trend deviation values; and outputting early warning data. This invention eliminates the non-steady-state semantic jitter of the perception front end through causal arbitration in the digital logical space, ensuring that risk judgment is supported by physical conservation laws, achieving precise alignment between the perception space and the physical operation scenario, and improving the penetrating identification capability of abnormal behavior.

The utility model belongs to the field of filling devices, and particularly relates to a filling device for printing ink preparation, which comprises a base, the outer side of the base is slidably connected with a placing plate, an adjusting mechanism is arranged in the base, the upper end of the base is provided with a PLC (programmable logic controller) control box, and the upper end of the base is fixedly connected with a fixing frame. A filling pipe is fixedly connected to the interior of the fixing frame, a pump pipe is fixedly connected to the upper end of the filling pipe, an inclined plane strip is fixedly connected to the interior of the pump pipe, and a waterproof proximity switch is fixedly connected to the interior of the inclined plane strip. The waterproof proximity switch, the movable rod, the floating ball and other structures are additionally arranged in the filling pipe, the filling pipe is inserted into a packaging container in the using process, when the filling pipe is nearly full, the floating ball drives the movable rod to move up and down through buoyancy, and when the movable rod makes contact with the waterproof proximity switch, filling can be stopped; therefore, the situation of filling filtration or insufficient filling can be effectively avoided.

The utility model discloses a water supply and drainage filtering device for a water conservancy project, and relates to the technical field of water conservancy project drainage. Comprising a water inlet pipe and a water outlet pipe, and the filtering structure is arranged between the water inlet pipe and the water outlet pipe and is used for filtering drained water of the water conservancy project. Through the arrangement of the filter structure, the adsorption plate, the filter plate and the microporous filter screen are arranged in the filter cavity, so that water supply and drainage can be filtered, and the adsorption plate, the filter plate and the microporous filter screen can be regularly cleaned through the arranged cleaning head, so that a filter medium is prevented from being blocked by impurities, the filter efficiency is kept, and smooth water flow is ensured; accumulation of dirt and sediments can be reduced, the risk of aging and damage of equipment is reduced, the service life of the equipment is prolonged, the cleaning head can avoid water flow interruption or incomplete filtration caused by blockage of the filter plate or the filter screen, and long-term stable work of the water supply and drainage system is ensured.

The present application belongs to the technical field of wet-process phosphoric acid and resource comprehensive utilization, and discloses a method for preparing phosphoric acid and calcium chloride by decomposing medium and low grade phosphate rock with by-product hydrochloric acid. (1) The phosphate rock is mixed with a hydrochloric acid solution, sodium chloride is added, and after reaction, solid-liquid separation is performed to obtain an acidolysis solution; (2) the acidolysis solution is separated and treated to obtain a phosphoric acid solution and a calcium chloride solution; (3) the calcium chloride solution is neutralized and purified by using a stepwise pH value control method; (4) the purified calcium chloride solution is concentrated, sodium chloride is precipitated and separated due to solubility difference, and is returned to step (1) for recycling, and the concentration, crystallization and drying are continuously performed to obtain a calcium chloride product. The present application effectively solves the problems of difficult solid-liquid separation and low value of by-product calcium chloride caused by the generation of silica gel in the acidolysis process of medium and low grade phosphate rock, the decomposition rate of the phosphate rock is more than 98%, high quality phosphoric acid is obtained, the full utilization of by-products is realized, and the production cost and energy consumption are significantly reduced.

The invention provides a data set automatic processing method and device, equipment, a medium and a product, and the method comprises the steps: obtaining sample data in a to-be-processed data set, inputting the sample data into a data filtering pipeline, and obtaining screened sample data outputted by the data filtering pipeline, each data filtering module is used for determining the mass fraction of the sample data on each mass dimension, and when the mass fraction of the sample data on the mass dimension corresponding to the data filtering module is higher than a threshold value of the data filtering module, the sample data is filtered by the data filtering module and enters the next data filtering module; optimizing the data filtering module on the basis of the filtering condition of the data filtering module on the sample data; and generating a processing data set based on the quality scores of the screened sample data in each quality dimension. The stability of the data set processing result can be improved.

This invention relates to a blue light blocking optical film for display screens. Several sampling points are selected on the display screen. Based on measured data from each sampling point, the spectral radiant power corresponding to each sampling point is obtained. Based on the spectral radiant power of each sampling point, the blue light radiation energy corresponding to each sampling point is calculated according to the spectral radiant power and a blue light hazard weighting coefficient. The blue light radiation energy corresponding to each sampling point is compared with a corresponding safety threshold. Based on the comparison result, a blue light radiation filtering coefficient is assigned to the sampling point. Surface fitting is performed based on the data of each sampling point to generate a blue light radiation filtering coefficient distribution function that the blue light blocking optical film should have. Based on this, the blue light blocking optical film is prepared. This blue light blocking optical film is more in line with actual conditions and can be used to adhere to the outermost LCD screen, OLED screen, MiniLED screen, or Micro LED screen.

The invention discloses a ventilating duct purification and disinfection device with a wind power generation assembly, which comprises a device body, a plurality of shells mounted in the device body, fan blades mounted in the shells, a micro-electrostatic discharge assembly and a micro-electrostatic filter screen mounted in the device body, and a box mounted at the top of the device body, the box body is connected with the ventilation pipeline body through a connecting mechanism, a filter plate is installed in the box body, a first cleaning mechanism and a second cleaning mechanism are installed in the box body, and an adjusting mechanism is installed in the box body. According to the device, through the arrangement of the first cleaning mechanism, two second sliding blocks are controlled to drive two moving rods to move back and forth, so that two first cleaning brushes are driven to clean the outer wall of one side of the filter plate, cleaned impurities can be automatically discharged through a discharging opening in the lower portion, and the effect of automatically cleaning one side of the filter plate is achieved; and the problem that impurities are accumulated on the surface of the filter plate to influence the overall use of the device is avoided.