2922 results about "Separation process" patented technology

The invention discloses a pillararene-based supramolecular polymer membrane, a preparation method thereof and application of the pillararene-based supramolecular polymer membrane in dye separation. The preparation method utilizes interfacial polymerization, and comprises the following steps: mixing a CH2Cl2 solution containing MeP5Bpy with an aqueous solution containing tetra (4-aminophenyl) methane and acetic acid, and standing to obtain the pillararene-based supramolecular polymer membrane at the interface of CH2Cl2 and the aqueous solution. The dye separation process is simple to operate and low in equipment requirement; rectification operation is not needed in the separation process, energy consumption is low, energy is saved, and the production cost is reduced.

The invention provides a chemical sewage advanced treatment system and method based on multistage membrane separation, and relates to the technical field of chemical sewage treatment.The method comprises the steps that pollution load data under preset membrane flux is collected, and the cascade reflux amount in the current membrane separation process is determined through the pollution load data and a real-time pressure index during membrane separation filtration; according to the separation interference deviation, the steady-state filtering period of the membrane separation filtering grade in the constant flux change is predicted, the steady-state filtering period is synchronously screened, and the full-flow separation limit of the multistage membrane separation unit in different pollution loads is obtained; and generating a separation regulation and control index when the equivalent flux generates peak offset according to the cascade reflux quantity and the full-flow separation limit, and performing starting point triggering on the treatment flow of the multistage membrane separation sewage and dirt. Under the dynamic working condition of operation of the multistage membrane separation system, balance adjustment can be carried out on the advanced treatment process trigger of the chemical sewage, so that the standard-reaching rate of membrane separation chemical sewage advanced treatment is increased.

The invention discloses a dynamic fluidized bed system and a dynamic fluidized separation method, belongs to the technical field of fluidized particle separation system measurement, and aims to solve the problem of poor detection precision of a mixed separation state of pulverized coal in a separation process in the prior art. In the dynamic fluidized bed system, a pressure acquisition unit acquires pressure signals at different positions of a bed layer in the vertical direction and transmits the pressure signals to a controller, the controller receives the pressure signals, calculates pressure difference signals, converts the pressure difference signals into density signals, and processes the density signals to generate a Hilbert map of particles in the bed layer; and judging whether the bed layer is in a mixed state or a separated state according to the Hilbert spectrum. The method can be used for dynamic fluidized separation of raw coal.

The invention belongs to the technical field of water treatment processes and devices, and particularly relates to a pharmaceutical wastewater treatment process and a pharmaceutical wastewater treatment device. According to the treatment process of the pharmaceutical wastewater, the pharmaceutical wastewater is subjected to the following processes: an electric flocculation process, a catalytic ozonation process, a ceramic membrane separation process and a reverse osmosis process; the membrane aperture of the reverse osmosis process is 0.3-0.4 nm, the transmembrane pressure difference is 2.0-3.0 bar, reverse osmosis desalted fresh water and reverse osmosis strong brine are respectively obtained, the reverse osmosis desalted fresh water directly reaches the standard for reuse, and the reverse osmosis strong brine is returned to the electric flocculation process for repeated treatment. The pharmaceutical wastewater treatment process provided by the invention not only can realize synchronous removal of suspended matters and organic matters, but also can realize desalination and deep purification of pharmaceutical wastewater, and provides a feasible and sustainable solution for pharmaceutical wastewater treatment, and the invention also provides a treatment device thereof.

The invention discloses a preparation method and application of a pH-responsive controllable oil-water separation material, polyurethane sponge is used as a substrate, polypyrrole is attached to the sponge substrate through an in-situ polymerization method, a pH-responsive polymer is introduced into the sponge substrate through a soaking method, and finally the pH-responsive controllable oil-water separation material is obtained. The controllability of the material in the oil-water separation process is reflected as follows: due to the introduction of the pH responsive polymer, the surface of the material has pH responsiveness, the surface of the material has different wettability by adjusting the pH value, different types of oil-water mixtures can be controllably separated in a targeted manner, and the adsorption and desorption of oil products can be realized. Due to the introduction of polypyrrole, the material has good photo-thermal conversion capacity, the viscosity of crude oil can be effectively reduced, and the absorption rate of the crude oil can be improved. The material with pH responsiveness has wide application prospects in the fields of oil-water separation, oil product adsorption and desorption and crude oil absorption.

The invention relates to the technical field of liquid chromatography-mass spectrometry series connection, and particularly discloses a method for detecting folic acid metabolites of red blood cells through the liquid chromatography-mass spectrometry series connection technology. And an image analysis algorithm based on artificial intelligence and deep learning is utilized to extract a chromatographic separation state, so that gradient parameters are dynamically adjusted, the requirement of manual intervention is reduced, and the separation process of a target object in a complex matrix is favorably optimized. Particularly, key features in a chromatogram can be automatically identified and quantified based on a deep learning method, and gradient elution parameters are intelligently and dynamically adjusted according to the information, so that more optimized substance separation and detection can be realized. For example, if separation of a certain component is not ideal, the separation effect of the component can be improved by adjusting the proportion of the mobile phase B, so that the gradient elution process is optimized.

The invention relates to the technical field of nano magnetic bead preparation, and discloses a magnetic bead continuous separation device. The magnetic bead continuous separation device comprises a magnetic bead separator, a magnetic field generating device and a driving device, the driving device is used for driving the magnetic field generating device to be close to or away from the side wall of the magnetic bead separator, the magnetic bead separator is hollow, one end of the magnetic bead separator is provided with a first liquid inlet and a second liquid inlet, and the other end of the magnetic bead separator is provided with a first liquid outlet and a second liquid outlet. According to the invention, a plurality of separation processes can be integrated in the same structure, so that the system configuration is simplified, and the requirements of automation and large-scale continuous treatment in the magnetic bead purification process are effectively met.

The invention provides a process for preparing cyclohexane-1, 2-dioctyl phthalate, which adopts a loop reaction process to perform hydrogenation reaction of dioctyl phthalate, and comprises the following steps: under the condition of excessive hydrogen atmosphere, firstly putting a catalyst, a solvent and a target product into a reaction tank to form a circulating material; when reaction liquid passes through the Venturi ejector, hydrogenation reaction can be carried out, the Venturi reactor can provide a high gas-liquid mixing ratio, the reaction rate is high, and the production efficiency is high. The catalyst and the reaction mixed liquid are separated by combining a membrane separation process, so that the catalyst is recycled, and the cost is reduced. The target product is added into the system to maintain material balance in the system, so that stable production is ensured. Compared with the traditional technical process, the method has the advantages that the reaction time is shortened, the energy consumption of the device and the investment cost are reduced, the high conversion rate of reactants and the high selectivity of target products can be kept, the operation period of the device is long, and continuous and stable production is realized.

The invention relates to a narrow particle size distribution nickel-rich precursor, a preparation method thereof and a positive electrode material, the preparation method is a co-precipitation method, accurate regulation and control of precursor crystal nucleation and growth are realized by adjusting process conditions of different reaction stages and metal solution feeding flow and complexing agent types in different reaction stages, and the nickel-rich precursor with the narrow particle size distribution is obtained. The nickel-rich precursor with uniform morphology and good sphericity degree and narrow particle size distribution is finally obtained, so that the electrochemical performance of the positive electrode material is remarkably improved; moreover, the preparation method provided by the invention does not need to adopt specific reaction kettle equipment, does not need a complicated kettle separation process, is simple and controllable in preparation process, and is easy for industrial production.

The invention discloses a raw material crushing and impurity removing device for glass production, and relates to the technical field of glass production. A negative-pressure environment is formed in the crushing shell and the separation chamber through the negative-pressure air pump, and dust generated in the crushing and separation process is prevented from overflowing to pollute the operation environment. Due to the negative pressure design, the environmental protection property in the crushing process is ensured, the loss of raw materials can be effectively reduced, and the economic benefit of the device is improved; and by arranging a sliding inclined pipe and a recovery pipeline, the raw materials which are large in diameter and not fully crushed can be automatically returned to the crushing system to be crushed again. By means of the circulating re-crushing design, the utilization rate of the raw materials is greatly increased, the situation that large-particle materials are not fully treated is avoided, the consistency of the particle sizes of final products is ensured, and meanwhile some impurities which cannot be crushed in the raw materials can be separated and screened.

The invention discloses an improved YOLOv10-based molybdenum ore resource automatic detection method and system, and belongs to the technical field of computer vision beneficiation, and the improved YOLOv10-based molybdenum ore resource automatic detection method and system comprise a YOLOv10-based improved model and an X-ray sorting technology. According to the method, a complete automatic detection and separation process is formed by organically combining a YOLOv10-based improved model and an X-ray separation technology, and a formed molybdenum ore resource detection and separation scheme is not limited by physical and chemical properties of molybdenum ore; compared with the traditional manual detection and sorting mode, the molybdenum ore resource sorting method has the advantages of greatly reducing manual intervention and operation time, and remarkably improving the working efficiency of the whole molybdenum ore resource sorting process, and has the remarkable advantages in the aspects of detection accuracy, sorting efficiency, resource utilization rate, adaptability to different working conditions and the like.

The utility model relates to the technical field of hydraulic ring geology, and discloses a hydraulic ring geology sample separation device which comprises a treatment box and supporting legs, a box cover is arranged at the upper end of the treatment box, a driving motor is arranged at the lower end of the treatment box, a spline shaft is arranged in the treatment box, a sample outlet pipe is arranged at one end of the treatment box, and a separation cylinder is arranged in the treatment box. A limiting groove is formed in the upper end of the separation cylinder, and a cleaning mechanism is arranged at one end of the limiting groove; the cleaning mechanism comprises a cleaning frame, rolling wheels are arranged in the cleaning frame, the width of the rolling wheels is matched with that of the limiting grooves, cleaning brushes are arranged on the two sides in the cleaning frame, one end of each cleaning brush makes contact with the separating cylinder, and a fixing rod is arranged at the upper end of the cleaning frame. According to the utility model, through the arrangement of the cleaning mechanism, gravel impurities in the meshes of the separation cylinder can be cleaned in the sample separation process, so that the separation cylinder can be effectively prevented from being blocked, the sample separation time is shortened, and the separation efficiency of geological samples is improved.

The invention discloses an actinide purification method and device, and belongs to the technical field of medical radioactive isotope separation and purification. The method comprises the following steps: passing a thorium target solution containing actinide through a cation exchange column, and leaching with inorganic acid to obtain a first effluent containing Ac < 3 + >; enabling the first effluent containing the Ac < 3 + > to pass through a TK221 resin extraction column to obtain a second effluent containing the Ac < 3 + >; the second effluent containing Ac3 + passes through a TRU resin extraction column, and actinide is obtained. The TK221 resin also contains phosphine oxide and a small amount of long alkyl chain alcohol on the basis of diglycolamide, and shows better performance on purification of Ac < 3 + >. Meanwhile, the elution acidity in the TRU resin separation process is properly improved, and the outflow speed of Ac, La and Ce can be delayed, so that the effect of separating Ac from La and Ce is achieved, and the yield of 225Ac is improved while the concentration of metal impurities is reduced.

The invention provides a methane recovery and purification system in intelligent cleaning equipment, which relates to the technical field of environmental protection, and is characterized in that methane-containing gas is collected from the cleaning equipment, moisture and small particles in the gas are removed to obtain preliminarily purified gas, and then methane is separated and recovered by using a separation technology to obtain purified gas. And the purified methanol is obtained through multi-stage purification treatment. According to the methane recovery technology, a time sequence of gas components, a time sequence of physical properties and a time sequence of process parameters need to be obtained, and local time sequence coding and causal context time sequence aggregation are carried out, so that a separation technology recommendation result is recommended, and operation parameters are dynamically adjusted. Therefore, subjective experience can be abandoned, gas characteristics and process requirements are monitored in real time and accurately matched, the accuracy and objectivity of separation technology selection are improved, and it is ensured that the separation process is always in the optimal state.

The invention relates to ore pulp mother liquor separation equipment, and belongs to the technical field of ore pulp treatment. Comprising an equipment body which forms a cavity; the flow stabilizing assembly is arranged in the cavity in a sliding mode; the cavity is divided into a first cavity body and a second cavity body which are independent from each other by the flow stabilizing assembly; the first cavity is connected with a liquid inlet assembly; the flow stabilizing assembly floats along the axis of the equipment body under the control of the liquid level height of the mother liquid in the first cavity; the second cavity is provided with an air pressure control assembly, the air pressure control assembly is configured to release air in the second cavity, and the air release flow Q is in negative correlation with the pressure P in the second cavity; and the ultrasonic assembly is arranged at the bottom of the equipment body. Under the condition of high liquid level, the flow stabilizing assembly can more effectively inhibit the fluctuation of the liquid level, so that the mother liquor separation process is stable and efficient, and the problem of poor separation effect caused by the fluctuation of the liquid level due to ultrasonic waves in the prior art is solved.

The invention discloses a method for slowing down membrane scaling and improving membrane treatment capacity in saline-alkali water treatment, and belongs to the technical field of agricultural saline-alkali water treatment and membrane separation, and the method comprises the following steps: (1) for hardness ions with the highest content in saline-alkali water to be treated, calculating the theoretical ion concentration # imgabs0 # of the hardness ions on the surface of a separation membrane and the inorganic scaling supersaturation index SI under a set working condition, predicting the membrane scaling trend in the separation process, and determining the target removal rate of the hardness ions in the agent softening process; (2) calculating the target removal rate of other hardness ions in the saline-alkali water to be treated; (3) optimizing the process parameters of the agent softening process so as to achieve the target removal rate of the hardness ions calculated in the above steps; and (4) carrying out agent softening on the saline-alkali water to be treated under the optimized process parameters, and filtering the saline-alkali water softened by the agent by using a separation membrane, thereby retarding membrane scaling and improving the membrane treatment capacity.

The utility model belongs to the technical field of recovery of coking chemical products in the metallurgical coking industry, and particularly relates to a crude benzene oil-water separation integrated device which is characterized by comprising an oil-water separation area, an oil phase collection area and a water phase collection area, and a partition plate is annular and defines the oil-water separation area in the middle and the oil phase collection area surrounding the oil-water separation area; a crude benzene diversion weir is arranged between the periphery of the top of the partition plate and the oil phase collecting region; a flow guide expansion head and a flow guide baffle are arranged at the bottom of the inlet liquid guide pipe, and a dispersion flow channel in the transverse circumferential direction is formed between the flow guide expansion head and the flow guide baffle; a drainage pipe at the bottom of the oil-water separation area is provided with a diversion collector for transversely draining and collecting separated water from the periphery. The crude benzene oil-water separation device has the beneficial effects that the existing crude benzene oil-water separation process is improved, oil-water separation and reflux are integrated, and the equipment integration device saves the occupied area, simplifies the process flow and is convenient to operate and maintain.

The invention relates to an air pre-impurity-removal control method and system for enrichment and separation of Kr, and relates to the technical field of gas separation and purification, and the air pre-impurity-removal control method comprises the following steps: removing impurity components in air through an impurity removal device to obtain air subjected to impurity removal treatment; carrying out multi-stage enrichment and separation treatment on the air subjected to impurity removal treatment to obtain enriched Kr gas; and introducing the enriched Kr gas into a chromatographic separation device, and separating krypton from other inert gases to obtain a target krypton component. The problems that in the traditional Kr enrichment and separation process, due to the fact that air impurities are prone to icing, the device is blocked, the multi-stage separation parameter adaptability is poor, and the enrichment efficiency is low are solved, and through pre-impurity removal of intelligent parameter configuration and multi-stage enrichment of gradient temperature control, the Kr separation stability, the enrichment efficiency and the target component purity are improved.

The invention belongs to the technical field of edible fungus cultivation, and discloses an automatic bag removing device for edible fungus matrixes, which comprises a processing table, a six-edge support is fixedly mounted on the processing table, lifting cylinders are fixed on the upper and lower end faces of the six-edge support, and cutting knife rests are fixed at the output ends of the lifting cylinders. Six groups of tearing structures for clamping and expanding the bag body are mounted on the six-edge bracket at equal angles; electric sliding rails are symmetrically fixed to the two sides of the upper surface of the machining table, a sliding support is slidably installed on the electric sliding rails, an outer positioning ring is fixed to the sliding support, a rotating frame is rotatably installed in the outer positioning ring, and a limiting structure for clamping and limiting a bag body filled with edible fungus matrixes is arranged on the rotating frame. The bag body can be clamped, expanded and cut apart, so that the bag body is effectively torn and separated from a mushroom stick, damage to hyphae in the mushroom stick is avoided in the separation process, and the bag removing effect is good.

The invention belongs to the technical field of mineral separation processes, and particularly relates to a magnetic separation process for low-grade potassium feldspar ore, which comprises the following steps: (1) crushing: crushing low-grade potassium feldspar raw ore; (2) ore grinding: grinding the fine particle raw materials to obtain ore pulp; (3) desliming: desliming the ore pulp to obtain a material containing magnetite and other weakly magnetic minerals; (4) removing strong magnetic magnetite through weak magnetic separation; (5) superconducting magnetic separation: carrying out superconducting magnetic separation on the magnetite-removed material to obtain potassium feldspar concentrate; (6) concentration is conducted, specifically, concentrate is subjected to concentration, and residual impurities are removed; and (7) dewatering and drying: dewatering and drying the concentrated concentrate to obtain a final product. According to the method, a two-step magnetic separation process is adopted for the low-grade potassium feldspar raw ore, weakly magnetic iron-containing impurities in the potassium feldspar raw ore are effectively removed, the impurity removing and whitening effects are achieved, the potassium feldspar powder with high purity and high whiteness is obtained, and the method is free of pollution and suitable for large-area application and popularization.

The invention belongs to the field of petrochemical industry, and relates to a production method of isononyl alcohol and a production device of isononyl alcohol. The production method of the isononyl alcohol comprises the following steps: C8 olefin, synthesis gas and a catalyst enter a raw material reactor to react to obtain a hydroformylation reaction product, the hydroformylation reaction product enters a product separation unit to separate and remove by-products, and then the hydroformylation reaction product enters an aldehyde hydrogenation unit to react to obtain the isononyl alcohol. The invention has the following beneficial effects: the product separation unit removes most of non-condensable steam, light components and water through a low-vacuum flash evaporation-high-vacuum evaporation two-stage process, reduces the load of a high-vacuum system, and saves energy consumption; the circulation path of the catalyst is shortened through the efficient and rapid separation process of the catalyst, and decomposition of the catalyst is reduced; by applying the vacuum evaporator, low-pressure and low-temperature rapid separation of materials is achieved, the catalyst circulation process is short, the separation temperature is low, and meanwhile energy consumption is saved.

The invention discloses an online monitoring management method and system for the complete cycle of carbon, iron and zinc separation of blast furnace bag-type dedusting ash, and relates to the technical field of dedusting control, the method comprises the following steps: dividing the complete cycle of the carbon, iron and zinc separation process of the blast furnace bag-type dedusting ash into a plurality of separation stages, and sequentially executing automatic monitoring of each separation stage, and according to the stage monitoring index set, carrying out separation state evaluation of the current stage, if a stage separation evaluation result is qualified, entering the next separation stage, and if the stage separation evaluation result is unqualified, carrying out separation compensation calculation, and carrying out carbon-iron-zinc separation regulation and control according to a separation compensation strategy. The technical problems that in the prior art, real-time regulation and control means are lacked, separation deviation is difficult to correct rapidly, and the blast furnace cloth bag dedusting ash carbon-iron-zinc separation efficiency and the resource recovery rate are affected are solved, and the technical effect that the blast furnace cloth bag dedusting ash carbon-iron-zinc separation efficiency and the resource recovery rate are improved through staged real-time monitoring and dynamic regulation and control is achieved.

The invention provides an improved ammonia production system based on a temperature swing adsorption principle. The improved ammonia production system comprises a water electrolysis hydrogen production module, a deep cooling air separation nitrogen production module, a multi-stage ammonia synthesis tower module and a double-bed circulating adsorption separation ammonia module, the water electrolysis hydrogen production module and the deep cooling air separation nitrogen production module provide raw material gas for the multi-stage ammonia synthesis tower module through a mixer, low-grade waste heat of a multi-stage ammonia synthesis tower serves as a heat source of the double-bed circulating adsorption separation ammonia module, and the double-bed adsorption separation ammonia module is connected with the multi-stage ammonia synthesis tower. The working conditions of an adsorption bed of the double-bed ammonia adsorption and separation module comprise an adsorption working condition and a desorption working condition, the adsorption bed alternately performs the adsorption working condition and the desorption working condition within the operation time, and low-grade waste heat from a multi-stage ammonia synthesis tower is used for driving to perform separation operation on ammonia synthesis gas so as to obtain high-purity ammonia; according to the invention, the operation pressure in an ammonia product separation project can be effectively reduced, circulation is formed, and the purity and the recovery rate of the obtained ammonia product are not reduced while the waste heat in the system is further utilized.

The invention relates to the technical field of oil-water separation, and discloses oil-water separation equipment which comprises a pool body, an annular discharging groove and a water outlet are formed in the inner side wall of the pool body, a separation baffle is installed on the inner wall of the annular discharging groove through an extending frame, and an oil collecting channel is further installed on the inner wall of the separation baffle. The lower end of the oil collecting channel is communicated with an oil outlet pipe; the tank body is provided with a feeding cylinder and a sludge discharging pipe, a pushing scraping plate is mounted on the outer side wall of the feeding cylinder through a rotating frame, the lower end of the feeding cylinder is communicated with a feeding pipe, and a feeding port is formed in the outer side wall of the feeding cylinder; the invention further discloses an oil-water separation process which comprises the following steps: S1, sewage introduction and pretreatment; s2, primary separation; s3, fine separation; s4, collecting and discharging oil liquid; and S5, water discharging: a multi-stage separation structure is adopted, the separation efficiency is greatly improved through multi-stage cooperation, a good separation effect on oil drops with small particle sizes is achieved, and the environment-friendly discharge requirement is met.

Disclosed is a method of fabricating a self-standing Graphene Oxide (GO) membrane comprising a plurality of layers of crosslinked GO sheets, the method comprising using a crosslinking agent to crosslink between oxygen-containing functional groups of neighbour GO sheets, wherein the crosslinking agent is a metallic oxide or a carbide.

The invention provides a metal material recycling device and a method for leaching fluorine beryllium thallium and lithium rubidium cesium in lithium slag. Relates to the field of metal material recycling, and comprises a leaching tank placed on the ground through four supporting frames, the top of the leaching tank is fixedly provided with a top cover, and the bottom of the leaching tank is fixedly provided with a bottom cover. According to the metal material recycling device and the leaching method for fluorine beryllium thallium and lithium rubidium cesium in the lithium slag, the ultrasonic generator is arranged to supply energy to the first ultrasonic transducer and the second ultrasonic transducer to generate ultrasonic waves, the ultrasonic waves generate microjet flow to impact the surface of minerals, acid liquor permeation and ion diffusion are accelerated, the leaching time is shortened, and the efficiency is improved; the surface of the lithium slag is not prone to passivation, the leaching rate of target metal ions is increased, the leaching liquid is pumped out through the water suction pump, manual contact with the leaching liquid in the next solid-liquid separation procedure is facilitated, dilute sulfuric acid is supplemented through the acid supplementing pipe, then the lithium slag is placed through the funnel, and the consistency and controllability of starting of the leaching reaction are guaranteed.

A thermal distillation apparatus including vertical, planar evaporation surfaces on which a solution flows as thin films and which are the external surfaces of a first heat exchanger within which flows a first fluid that supplies heat to convert at least some of the volatile solvent of the solution to a vapor, vertical, planar condensation surfaces that are external surfaces of a second heat exchanger within which flows the first fluid or a second fluid that absorbs the thermal energy that is released as vapors of the solvent condensed on the condensation surfaces, air at ambient pressure between the condensation surfaces and the evaporation surfaces, means for supplying the solution to the evaporation surfaces, means for collecting the condensed vapors from the condensation surfaces, and means for collecting the unevaporated portion of the solution from the evaporation surfaces.

The invention provides a catalyst recovery control system and method based on multi-stage centrifugal separation, and relates to the technical field of catalyst separation, the system comprises: a device building module for building a multi-stage centrifugal separation device; the separation and analysis module is used for determining M catalyst centrifugal process parameters; the separation treatment module is used for performing preliminary separation treatment on the target mixture and acquiring M catalyst state parameters at the same time; and the recovery control module is used for carrying out separation effect calculation and multi-stage dynamic adjustment on the M catalyst centrifugal process parameters according to the catalyst state parameters, determining multi-stage centrifugal separation strategy parameters and carrying out catalyst recovery control on the target mixture. The technical problem that the catalyst recovery efficiency is low due to the fact that the catalyst separation efficiency is insufficient and the catalyst is wasted in the prior art can be solved, the optimization of the catalyst state in the whole separation process is ensured through multi-stage centrifugal separation, and the catalyst recovery efficiency is improved.

The invention relates to the technical field of filter presses, and discloses a coal slime filter press convenient for cleaning residual filter cakes on a diaphragm, which comprises a filter pressing unit, an oscillating unloading unit and a stirring unloading unit. According to the vibration discharging device, an electric sliding block in the vibration discharging unit moves to a filter pressing plate at a designated position, at the moment, a side plate on the side wall pushes a turning plate to turn over, when the side plate completely moves to a top block, resetting is conducted through a torsional spring, and at the moment, when the electric sliding block resets, the turning plate can push the side plate to move; in the moving process, a top block and an insertion rod slide in a groove in a reciprocating manner to push a side plate and a vertical rod to move up and down, so that the filter pressing plate can shake up and down, a diaphragm in the filter pressing plate can shake in the separation process of the filter pressing plate, and a filter cake adhered to the diaphragm can fall off; the purpose of automatic cleaning is achieved, and operation is easy.

The beneficiation method comprises the following steps that (1) after ilmenite is pretreated, the ilmenite is treated through a high-intensity magnetic separation technology, and coarse ilmenite concentrate is obtained; the strong magnetic separation process is carried out by adopting an SHP strong magnetic separation device; and (2) the rough titanium concentrate is subjected to electric separation process treatment, and titanium concentrate is obtained. According to the beneficiation method of the ilmenite, the ilmenite concentrate with the extremely low calcium and magnesium content is obtained, the requirement that the content of CaO and MgO in boiling titanium dioxide chloride raw materials is smaller than or equal to 1.50% is met, the grade of the ilmenite concentrate product can be improved to 48% or above, the recovery rate can reach 90%, the additional value of the beneficiation product and the economic benefit of a production line are improved, and the beneficiation method is suitable for large-scale industrial production.