96results about "Mixture aftertreatment" patented technology

The application provides a continuous sludge pre-drying method and system, and relates to the technical field of sludge treatment.The application provides a continuous sludge pre-drying system, which comprises sequentially connected sludge storage devices, sludge slitting devices, primary mixing devices, pre-drying devices and secondary mixing devices.The application also provides a pre-drying method, which comprises the following steps: conveying sludge in the sludge storage devices to the sludge slitting devices to slit the sludge; adding adsorbents to the slit sludge to obtain mixed sludge, and conveying the mixed sludge to the primary mixing devices to perform primary crushing and mixing; outputting the sludge discharged from the primary mixing devices to the pre-drying devices, outputting the pre-dried sludge to the secondary mixing devices to perform secondary crushing and mixing, and obtaining pre-dried sludge.The system and method provided by the application can realize short sludge pre-drying cycle, high sludge drying efficiency and stable sludge drying effect.

The application discloses a preparation device of a conditioning agent for reducing continuous cropping obstacles of Chinese chives and a preparation method thereof, wherein the device comprises a reaction kettle, the reaction kettle is provided with an input port for inputting raw materials on one side and an output port at the bottom, a transmission shaft capable of periodically variable-speed rotation is arranged concentrically in the reaction kettle, a first cross arm is arranged on the transmission shaft, a stirring rod parallel to the transmission shaft is arranged on the first cross arm, a plurality of groups of paddles are distributed on the stirring rod, an action mechanism is arranged on the first cross arm, the action mechanism is driven by the periodic variable-speed rotation of the transmission shaft and can drive the stirring rod to reciprocatingly rotate in the circumferential direction, and the mixing and stirring effect and efficiency of the raw materials can be improved by conveniently realizing the reciprocating rotation of the stirring rod while the stirring rod follows the circumferential rotation of the transmission shaft, so that time and labor are saved.

The utility model relates to the technical field of medicine production and processing, concretely is a raw material mixing device for medicine production and processing, including mixing box, the one side of mixing box is hinged and is installed with the box door, the one side fixed mounting of box door has PLC controller, the inside of mixing box is provided with the sieve mechanism, the mixing mechanism is provided with in the inside of mixing box and is located the upper portion of sieve mechanism. This raw material mixing device for medicine production and processing, through the sieve mechanism set up, effectively promoted the sieve ability of device, the first motor drives the rotation of first rotary lever, makes the knocking rubber ball of connecting rod top end unceasingly knock sieve net board, cooperates the elastic action of support sleeve pipe, movable rod and connecting spring, and sieve net board produces vibration, can be fast with the granule size of mixed medicine raw material sieve, need not additional manual sieve, solved the inconvenient problem of sieve operation to the raw material after mixing in prior art, greatly promoted the convenience of processing use.

The application relates to the technical field of insulating flame-retardant fire extinguishing agent preparation, and relates to an insulating flame-retardant fire extinguishing agent and a preparation method thereof.The preparation method comprises the following steps: receiving an insulating flame-retardant fire extinguishing agent preparation instruction, confirming preparation materials and preparation devices according to the insulating flame-retardant fire extinguishing agent preparation instruction, obtaining an optimal mass ratio, weighing ammonium polyphosphate powder, pentaerythritol powder and lignin powder according to the optimal mass ratio, preparing bio-based intumescent flame-retardant component powder, preparing sodium alginate solution and ferric chloride crosslinking solution based on sodium alginate and deionized water, preparing a gel particle set based on the sodium alginate solution and the ferric chloride crosslinking solution, obtaining catalytic carbonization synergistic component powder according to the gel particle set, preparing the insulating flame-retardant fire extinguishing agent based on the bio-based intumescent flame-retardant component powder and the catalytic carbonization synergistic component powder, and completing the preparation of the insulating flame-retardant fire extinguishing agent based on the insulating flame-retardant fire extinguishing agent.The application can realize stable quality and safe and environment-friendly production of the fire extinguishing agent.

The utility model proposes a kind of composite structure device of reinforcing titanium series adsorbent anti-dissolution performance, comprising: melt extruder, hopper and stirring mechanism, the stirring mechanism includes hollow shaft, hollow carousel, hollow tube and the driving member for driving hollow shaft rotation, both sides of the hollow tube are rotatably installed with transverse stirring rod, both sides of the bottom of the hollow carousel are rotatably installed with vertical stirring rod, the top of the hopper is fixedly connected with support rod, the surface of the support rod is fixedly connected with gear disc and first bevel gear, one end of the transverse stirring rod is fixedly connected with the second bevel gear meshing with first bevel gear, the upper end of the vertical stirring rod is fixedly connected with the planetary gear meshing with gear disc. The utility model can be mixed to the mixed material in hopper multidirectional stirring by setting stirring mechanism, improve the mixing efficiency of titanium series adsorbent precursor and skeleton resin, to further improve the production efficiency of high-performance titanium series adsorbent particle.

The application discloses a multifunctional continuous activation modification machine for processing high-specific-surface-area calcium hydroxide, relates to the technical field of calcium hydroxide powder processing equipment, and comprises a raw material pretreatment unit, a multistage continuous activation modification unit and a collection and conveying unit. The raw material pretreatment unit realizes raw material depolymerization screening, temperature and humidity control and stable conveying through vibration depolymerization, screw conveying and hot air cooperation. The multistage continuous activation modification unit adopts three-stage cylinder bodies in a triangular shape. The first-stage activation cylinder strengthens the mechanical activation effect through a reverse operation structure. The second-stage modification cylinder realizes uniform dispersant coating through atomization and stirring. The third-stage sorting cylinder completes accurate grading through multi-specification screens. The collection and conveying unit realizes efficient collection of finished products without agglomeration through negative pressure, buffer and positive pressure conveying structures. The application realizes full-process continuous operation, effectively increases the specific surface area of the powder, improves the modification consistency and the finished product qualification rate, and is suitable for large-scale production of high-specific-surface-area calcium hydroxide.

The utility model discloses environment-friendly low-alkali cement grinding aid stirring equipment which comprises a stirring machine shell, an inner cavity is fixedly connected in the stirring machine shell, the top end of the inner cavity is in threaded connection with a first rotating shaft, a plurality of push type paddles are fixedly connected to the first rotating shaft in the vertical direction, and the first rotating shaft is in threaded connection with a second rotating shaft in the vertical direction. The top surface of the stirrer shell is fixedly connected with a motor I, and the output end of the motor I is fixedly connected with the rotating shaft I; a second rotating shaft is in threaded connection with the top end of the stirrer shell, a plurality of turbo type paddles are fixedly connected to the second rotating shaft in the vertical direction, a second motor is fixedly connected to the top face of the stirrer shell, and the output end of the second motor is fixedly connected with the second rotating shaft; liquid components are mixed with low shear force in the pre-stirring stage of the push-type paddle, the scrapers synchronously remove attachments on the wall of the cavity, and the turbo-type paddle rapidly crushes solid particles through high shear force and promotes uniform fusion of materials, so that the reaction activity of the grinding aid and the stability of a finished product are remarkably improved.

The utility model discloses an edible oil blending tank capable of uniformly stirring, which is characterized in that filter screen positioning rods are arranged in a one-up and two-down manner, so that a filter frame, the filter screen positioning rods and a filter screen main body among the interiors of the plurality of filter screen positioning rods form a W-shaped structure, and the stability of the filter screen main body is enhanced; the oil liquid can pass through the filter screen main body more stably and uniformly, filtering dead angles caused by non-uniform fluid distribution are reduced, the filtering efficiency is further improved, in addition, the W-shaped structure increases the contact area of the filter screen and the oil liquid, more oil liquid can be in full contact with the filter screen main body, impurities have more opportunities to be intercepted, and the oil liquid filtering effect is improved. According to the device, the discharging pipeline is arranged, so that the filtering precision and effect are improved, the device is provided with an assembly for filtering discharged oil products, impurities generated in the blending process or blocks which are not fully mixed are prevented from entering the discharging pipeline, the filtering efficiency can be improved by improving the structure, and the discharging uniformity and quality can be ensured.

The utility model relates to a kind of direct reduction briquette binder discharge devices for avoiding powder blockage, including discharge frame, subassembly;Discharge frame top has been opened into feed inlet, the feed inlet lower side is provided with the blowing part blowing part of a plurality of air holes, agitator rod is set below blowing part, agitator rod is rotatably installed with discharge frame;Subassembly makes the lower part of discharge frame divide into multiple small areas, powder is in multiple small area subassembly and is quantitatively conveyed via subassembly;Between stirring rod and subassembly, a sieve plate is equipped, while vibrating component vibration, the powder that falls on sieve plate is buffered;Powder falls into discharge frame, starts blowing part to form airflow, while avoiding powder blockage and bridging by the rotation of stirring rod, vibrating component synchronously makes discharge frame vibrate up and down, so that powder is buffered on sieve plate, and powder is quantitatively conveyed by the rotation of subassembly.The utility model reaches the beneficial effect that: it is more efficient, stable and high degree of automation, effectively avoid powder caking or blockage.

The utility model relates to carbon black production technical field especially relates to a kind of pretreatment system for carbon black dispersion liquid production, including first reation kettle, the liquid inlet of first reation kettle is connected with first adsorbent material liquid conveying pipeline, the discharge port of first reation kettle is connected with first grinding device, the feed inlet of first grinding device is connected with first dispersant storage tank, the discharge port of first grinding device is connected with second reation kettle, the liquid inlet of second reation kettle is connected with second adsorbent material liquid conveying pipeline, the discharge port of second reation kettle is connected with second grinding device, the feed inlet of second grinding device is connected with second dispersant storage tank, the discharge port of second grinding device is connected with separating device, the discharge port of separating device is connected with drying device, the discharge port of drying device is connected with modified carbon black product storage tank.The pretreatment system of above structure has realized the modification pretreatment of carbon black, and the modified carbon black material obtained is used for preparing carbon black dispersion liquid again, and the dispersibility of carbon black dispersion liquid is greatly improved.

This utility model discloses a dyeing agent preparation device for dyeing polyester network yarn, belonging to the technical field of dyeing agent preparation devices. The utility model includes a base plate, a stirring mechanism on the top of the base plate, and a discharge mechanism on the top of the base plate. The stirring mechanism includes a stirring tank. The utility model incorporates a toggle lever. A motor rotates a rotating shaft, which in turn drives a stirring rod. Simultaneously, as the rotating shaft rotates, the toggle lever actuates a baffle, causing the baffle to rotate within a connecting shell and simultaneously slide on a liquid-passing pipe. The toggle lever's actuation of the baffle causes the baffle to rotate within the connecting shell, and the rebound of the telescopic cylinder resets the baffle. This allows for the gradual addition of dyeing agent, resulting in a more uniform mixture and preventing uneven polyester color caused by uneven dyeing.

This invention belongs to the field of alumina catalyst production technology, and in particular, a production system for preparing alumina catalysts. The system includes a base support and further comprises: a material mixing chamber fixedly connected to the top of the base support; and an auxiliary frame fixedly connected to the top of the material mixing chamber. The advantages are: by pre-setting bauxite material in the material chamber and adding an auxiliary catalyst, the stirring rod can complete the mixing process during mixing, while controlling the movement of the material in batches to ensure mixing efficiency and prevent agglomeration caused by a large amount of material entering the mixture, thus affecting processing. After mixing, the material filter screen is vibrated to quickly filter impurities, improving filtration efficiency. The filtered material then enters a drying chamber for drying, thereby completing the production of the alumina catalyst.

This invention discloses a low-viscosity, high-solids-content magnesium hydroxide suspension and its preparation method, comprising the following components by mass: 40-60 parts water, 40-60 parts magnesium hydroxide, 0.1-4 parts dispersant, and 0.01-2 parts stabilizer; wherein the viscosity of the magnesium hydroxide suspension is <100 cp; and the particle size D of the magnesium hydroxide is... 50 The particle size is 1~3μm. This invention successfully prepared a low-viscosity, high-solids-content magnesium hydroxide suspension that is stable for a long time and does not exhibit gelation by adding appropriate amounts of dispersants and stabilizers and adjusting the particle size of magnesium hydroxide particles, combined with high-speed stirring and ball milling processes. This not only improves processing efficiency and product performance, but also demonstrates significant economic benefits in transportation and storage.

The utility model relates to fireworks production technical field especially relates to a material distribution and mixing device with explosion -proof function, the utility model provides a material distribution and mixing device with explosion -proof function can discharge dust in time in the mixing process, effectively avoid the dust accumulation produces the security risk, a material distribution and mixing device with explosion -proof function, including the placing table, telescopic column, first spring and material collecting hopper etc. The utility model under the negative pressure suction effect of the air pump makes the dust in the explosion -proof cover and material collecting hopper discharge in turn through the connecting cover and connecting pipe, and the gunpowder particles in the explosion -proof cover and material collecting hopper in the intercepting net are intercepted and filtered, which can discharge dust in time in the mixing process, effectively avoid the dust accumulation produces the security risk.

This invention relates to the field of metal material plastic processing technology, and discloses a stretching forming process for an aluminum back shell of a display. The process includes: coating the surface of an aluminum plate with a semi-solid hybrid gel lubricant conversion fluid, drying it to form a non-glassy semi-solid lubricant film; stamping a convex bulge and placing it in a pre-forming mold, using the shear modulus of the film and the elastic blank holder force of the mold for initial stretching; subsequently performing a secondary stretching to tighten the sidewalls, during which the phase change heat absorption of moisture in the film in the deformation heat accumulation zone is used to suppress overheating of the aluminum material; finally, assembly is completed by CNC machining, warm water cleaning, and homogeneous blind hole riveting. This invention achieves integrated forming of an all-metal back shell through the synergy of a semi-solid lubricant medium and a multi-stage stretching mold, eliminating heterogeneous interfaces and welding heat-affected zones, solving deep stretching cracks and surface orange peel defects, improving structural strength and anodized appearance consistency, and reducing manufacturing costs.

The utility model relates to pipeline maintenance technical field especially relates to ethylene propylene rubber pipe timing backflush cleaning device, including bottom plate, still including pressure relief subassembly and liquid storage stirring subassembly, the utility model discloses set good timing stirring time and backflush time through electric control device, three electromagnetic valves open simultaneously when backflush, and the cleaning agent of stirring even passes through booster pump pressurization, backflush ethylene propylene rubber pipe, when the water pressure in pipeline is too big, the valve disc is far away from the valve seat, and the liquid will be sprayed from the pressure relief pipe, makes the water pressure reduction in pipeline, when the water pressure in pipeline is normal, the valve disc is close to the valve seat, and the pressure relief valve body inside will close, and the waste liquid produced in cleaning is discharged into the waste liquid bucket through the liquid return pipe, which helps to overcome the problem that not only needs to pour cleaning agent and manual stirring even in the backflush cleaning process of ethylene propylene rubber pipe, and the operation is time -consuming and laborious, and high -pressure backflush can damage the rubber tube, and the untreated waste liquid directly discharged into the waste bucket still has the environmental pollution risk.

This invention relates to the field of nanofluid preparation technology and discloses a gradient dispersion preparation method for highly stable, low-agglomeration nanofluids, comprising the following steps: S1, drying, sieving, and surface activation pretreatment of nanoparticles; S2, mixing the pretreated nanoparticles with a modifier; S3, sequentially adding a pre-wetting liquid, a transition dispersion liquid, and a base liquid to form a transition suspension; S4, applying a gradient composite energy field to the transition suspension for graded deagglomeration; S5, adjusting the pH and viscosity of the deagglomerated suspension and adding a polymeric stabilizer; S6, precisely filtering the stabilized nanofluid to obtain a highly stable, low-agglomeration nanofluid. By employing a full-chain gradient dispersion technology solution involving nanoparticle pretreatment, surface modification, gradient wetting pre-dispersion, gradient composite energy field deagglomeration, multi-dimensional stabilization control, and multi-stage precision filtration, the problems of easy agglomeration, incomplete dispersion, and uneven particle size distribution of nanoparticles are solved.

A mixed feed pelleting production line includes a mixer (19), an extrusion pellet mill (20) located below the mixer (19), and a drying and cooling conveyor (21) located at the discharge end of the extrusion pellet mill (20). The mixer (19) includes a mixer frame (1), a mixing barrel (2), and a feeding hopper (3). Both the upper and lower ends of the mixing barrel (2) are provided with conical parts (5). The advantages of this utility model are: each material falls freely in the mixing barrel and is dispersed and mixed sequentially by the upper and lower screen plates. During the falling collision process, the agglomerated materials can be quickly dispersed, improving the mixing efficiency and mixing quality. The material can quickly and evenly enter the extrusion cylinder through the dispersing roller in the feeding hopper. The heat generated after extrusion is collected by the heat collection guide tube and used to exchange heat with the air before being used to dry the pelleted feed, improving the heat energy utilization rate.

The utility model discloses a sewage treatment device for high -purity quartz sand production, including filter box, the inner wall fixed mounting of filter box has the filter plate, the top of filter box is installed with the mixing box through the sliding mechanism, the surface fixed mounting of mixing box has the rack, the surface fixed mounting of filter box has the mounting bracket. Through the inlet pipe can transport chemical reagent, through the blanking mechanism can be unloaded to the inside of filter box sewage, through the filter plate to the sewage filtration, through the rotation mechanism drive gear rotates, gear drive rack rotates, rack drive mixing box rotates, make further improve the mixing rate of sewage, adjust the drop point of inlet pipe simultaneously, make chemical reagent even unload to the different position of mixing box, rotate simultaneously through the mixing box drive blanking pipe, make blanking pipe rotate in the process of sewerage, can make sewage through the different position of filter plate filtration.

The utility model belongs to nut processing technical field especially is a kind of nut processing seasoning stirring mechanism. Including processing table, the top of processing table is fixed with first separation structure, the top of first separation structure is provided with stirring structure, the left side of first separation structure is provided with second separation structure;Through first separation structure and second separation structure, utilize the vibration motor contained in first separation structure, seasoning and nut can be quickly shaken by separating screen cylinder, then seasoning and nut are preliminarily screened, and then the guiding fan contained in second separation structure can be twice screened between seasoning and nut by upper separation channel and lower separation channel, so that seasoning is effectively recycled, that is, reduce cost and be conducive to environmental protection.

The utility model relates to a dilution tank for vitamin B12 injection production, which comprises a tank body, a sealing cover installed on the top of the tank body, a liquid inlet arranged on one side of the top of the tank body, a water inlet arranged on the other side of the top of the tank body, a liquid outlet arranged at the bottom of the tank body, a first filter element installed in the liquid inlet and extending into the tank body, a second filter element installed in the liquid outlet, an L-shaped liquid discharge pipe installed at the bottom of the liquid outlet, a corrugated flexible pipe arranged on the vertical section of the liquid discharge pipe, the second filter element arranged in the corrugated flexible pipe, a hanger connected with the liquid discharge pipe arranged at the bottom of the tank body, a safety valve and an ultrasonic liquid level sensor installed on the top of the sealing cover, a temperature sensor arranged on the inner wall of the tank body, a pressure sensor arranged on the bottom of the inner wall, a plurality of sampling valves arranged on one side of the tank body from top to bottom, and magnetic stirrers arranged on both sides of the bottom of the tank body and symmetrical to the liquid outlet. The utility model adds a filtering function, thereby improving the purity and production safety of the liquid medicine.

This utility model provides a mixing device for a paint filter, relating to the field of paint production technology. The device includes a filter tank with an inlet and an outlet fixedly connected to its upper and lower ends, respectively. Support legs are fixed to the outer surface of the filter tank, and a filter screen is fixedly connected to its inner surface. Paint is poured into the filter tank through the inlet and falls into a mixing tank, where it accumulates. With the help of a motor and a stirring rod, the accumulated paint in the mixing tank is thoroughly stirred, restoring the paint to a uniformly dispersed state and removing larger sediment particles. Once a pressure sensor detects that the paint in the mixing tank has reached a predetermined weight, the controller opens a solenoid valve, allowing the uniformly stirred paint in the mixing tank to be fed through a discharge pipe to the filter screen for filtration, effectively preventing the filter screen from becoming clogged due to larger sediment particles in the paint.

This utility model discloses a lubricating oil stirring device with impurity removal function, including: a stirring machine body and a cleaning component; the stirring machine body includes a stirring motor and a discharge pipe fixedly installed at its top and bottom respectively. In this lubricating oil stirring device with impurity removal function, after filtration, the filter disc in the adjusting box outside the discharge pipe can be driven to the cleaning chamber at the top by an electric push rod at the bottom. Water flowing into the cleaning chamber through the outer water inlet pipe backwashes the filter disc, removing residual impurities and ensuring the filtration effect of the filter disc in subsequent use. Simultaneously, a drain cover and drain pipe connected to the other side of the cleaning chamber can also guide the cleaned water flow into the inner side of the filter chamber, thereby uniformly rinsing the inner wall of the filter chamber and the inner connecting pipe wall to ensure no residue remains in the filter chamber and inner connecting pipe.

The utility model relates to the technical field of milk sterilization production, and discloses a milk sterilization tank convenient for removing solid sediments, which comprises a main plate, a barrel body is fixedly connected to the top of the main plate, a heating device is fixedly connected to the side wall of the barrel body, a cleaning component is mounted in an inner cavity of the barrel body, and the cleaning component is used for cleaning the solid sediments in the inner cavity of the barrel body. A telescopic assembly is mounted at the top of the main plate and used for adjusting the height of a cleaning assembly, the cleaning assembly comprises a cover plate, and the cover plate is clamped to the top of the barrel body; according to the milk sterilization tank convenient for removing the solid sediments, a servo motor is used for driving a rotating shaft to rotate, the rotating shaft drives a collecting box to rotate, the collecting box is subjected to resistance of milk in the rotating process, so that a clamping plate slides inwards to extrude an elastic assembly, a square opening is opened, and at the moment, the milk mixed with the sediments enters an inner cavity of the collecting box; the liquid milk can flow out from the filtering holes formed in the back surface of the collecting box, and sediments can be collected in the inner cavity of the collecting box.

The application discloses a composite improvement material for ecological restoration of saline-alkali soil in plain areas and a preparation method thereof, belongs to the technical field of soil ecological restoration, and aims to solve the technical defects of poor adaptability, weak synergistic effect, easy salt return, repeated data parameters and existing technologies, and inability to meet the ecological restoration requirements of saline-alkali soil in plain areas. The preparation method comprises four steps of raw material pretreatment, grading mixing, post-treatment and quality detection, and is simple, controllable and free of three wastes. The application precisely adapts to the regional characteristics of saline-alkali soil in plain areas, all data parameters and calculation formulas avoid the existing technologies, realizes the synergistic promotion of desalination, alkali reduction, soil structure improvement and microbial community restoration, has stable and long-lasting improvement effect, has high utilization rate of active ingredients, is suitable for large-scale production and popularization and application, and can effectively realize long-term stable ecological restoration of saline-alkali soil in plain areas.

The utility model discloses a kind of ash removing neutralizing agent blending device, belong to blending device field, including tank, tank bottom end is fixedly installed with discharge pipe, two metering pumps are equipped in tank top end, two metering pumps one end are connected with feed pipe between tank, two metering pumps other end are all connected with pumping pipe, tank top end is fixedly installed with feed frame, feed frame bottom end extends into tank, be equipped with crushing assembly in feed frame, tank top end is fixedly installed with installation box, stirring assembly is equipped in tank, control valve is equipped in discharge pipe side wall, discharge pipe end portion is connected with filter tube. The utility model is through the setting of crushing assembly, after solid particle feeding feed frame, by first speed reducer drive two crushing rollers synchronous rotation, play the role of crushing grinding solid particle, it is convenient for raw material to be fully mixed, it is favorable to improve the mixing efficiency and quality of product.

The invention discloses a polymer mixing or devolatilization device and a mixing and devolatilization method, and the mixing and devolatilization method comprises the following steps: dispersing an additive fluid into micro / small liquid drops or micro / small bubbles, injecting the micro / small liquid drops or micro / small bubbles into a polymer melt in a high-frequency and intermittent manner, and mixing the micro / small liquid drops or micro / small bubbles with the polymer melt; then controlling reaction conditions to change to remove volatile components; the mixing or devolatilization device comprises a shell, and a plurality of additive injection ports are formed in the shell; the additive distributor is communicated with the additive injection ports; the pulse flow generator is connected with the additive distributor; an additive sequentially passes through the pulse flow generator, the additive distributor and the additive injection port and is jetted into the shell in a high-frequency and intermittent mode. The method provided by the invention can promote the small molecular substances to diffuse into the bubbles / liquid drops, so that the volatilizable small molecular substances are rapidly removed, the polymer melt suitable for direct spinning or other subsequent processing is obtained, the process flow can be shortened, the energy consumption is reduced, and the investment is saved.

The present application relates to the technical field of catalyst preparation, and discloses a preparation method of a hydrogenation catalyst, which adopts a preparation system of the hydrogenation catalyst, wherein the preparation system of the hydrogenation catalyst comprises a liquid preparation kettle, a solution preparation tank and an impregnation kettle which are sequentially communicated, the liquid preparation kettle is provided with an acid liquid inlet and an alkali liquid inlet which are respectively provided with control valves, the solution preparation tank is provided with a heating device, the impregnation kettle is provided with a carrier inlet, a slurry dosing tank of a first weighing device is installed on a connecting pipeline of the liquid preparation kettle and the solution preparation tank, and a carrier bin of a second weighing device is connected with the carrier inlet in communication. The present application has the advantages of continuous production of the hydrogenation catalyst, cost reduction and labor intensity reduction.