Catalyst preparation method and device based on treating pollutants

Abstract

The invention relates to the field of catalyst preparation, and discloses a catalyst preparation method and a device based on treating pollutants. The oxygen-containing functional groups on the surface of graphene or graphene oxide are reduced by a chemical reducing agent, and metal ions or metal oxide nanoparticles are loaded on the graphene. The method comprises the following steps: step one: weighing a graphene composite catalyst raw material; step two: preparing graphene oxide; step three: mixing the graphene oxide with a metal salt solution; step four: washing and drying. After the reaction is completed, the product is washed with deionized water and ethanol to remove impurities, and then dried to obtain a final product. The invention controls the reciprocating rotation of a blanking plate through the rotation of a pressing plate, intermittently controls the raw material to be screened and dropped for drying, and the blanking plate rotates to push the coarse raw material back into a processing box for screening and crushing again until it can be fully exposed to hot air for drying.

Description

Technical Field

[0001] The present invention relates to the technical field of catalyst preparation, and in particular to a method and a device for preparing a catalyst based on treating pollutants. Background Art

[0002] Catalysts for pollutant control play a vital role in environmental protection. These catalysts help convert harmful pollutants into harmless or low-toxic substances by accelerating the rate of chemical reactions, thereby reducing pollution to the environment. They include composite catalysts: catalysts formed by combining multiple metal or non-metal elements, which can exert the synergistic effect between the components and improve the catalytic efficiency and stability. The relevant patent authorization number 202210060885.9 introduces the preparation of nanoparticle graphene composite catalysts, which are suitable for pollutant control.

[0003] After searching, it was found that the preparation process of the composite catalyst includes the steps of crushing, washing, drying, and reaction of raw materials. In the crushing and drying process, after the composite catalyst is crushed, the raw materials are usually directly added with more raw materials during the drying process and dried by heated air. If more raw materials are exposed to air at one time, the internal part of the raw materials cannot be well exposed to the air, affecting the drying effect. In addition, during the drying process, some raw materials inside the raw materials are not crushed thoroughly, resulting in coarse raw materials contained in the raw materials, and the contact effect with air will also deteriorate, affecting the drying.

[0004] Based on this, a catalyst preparation method and a device thereof based on treating pollutants are proposed herein to solve the above problems. Summary of the invention

[0005] In order to overcome the above technical problems, the object of the present invention is to provide a method for preparing a catalyst based on treating pollutants and a device thereof. The object of the present invention can be achieved by the following technical solutions:

[0006] The preparation method of the catalyst based on treating pollutants, wherein the oxygen-containing functional groups on the surface of graphene or graphene oxide are reduced by a chemical reducing agent, and metal ions or metal oxide nanoparticles are loaded on the graphene, comprising the following steps:

[0007] Step 1: weighing graphene composite catalyst raw materials, crushing them, and performing layered drying and cyclic crushing treatment in a processing box; Step 2: preparing graphene oxide: the crushed and dried graphene composite catalyst raw materials are used to prepare graphene oxide by the Hummers method; Step 3: mixing and reducing: mixing graphene oxide with a metal salt solution, adding an appropriate amount of a reducing agent, and performing a reduction reaction under certain conditions to reduce metal ions into nanoparticles and load them on graphene; Step 4: washing and drying: after the reaction is completed, washing the product with deionized water and ethanol to remove impurities, and drying to obtain the final product.

[0008] Preferably, the processing box of step one includes a feed hopper fixed on the left side of the upper end, the processing box is equipped with a blanking mechanism, the blanking mechanism includes a rotating shaft, the rotating shaft is rotatably connected to the inside of the processing box, a material roller is fixed to the outside of the rotating shaft, four prismatic pressure plates are fixed to the outer wall of the material roller, a support seat is fixed to the left side of the inside of the processing box, the support seat is rotatably connected to an inclined blanking plate, the upper surface of the bottom end of the blanking plate is in contact with the outer surface of the material roller, and three prismatic receiving plates are fixed to the upper surface of the blanking plate.

[0009] Preferably, the processing box is equipped with a screening assembly, and the screening assembly includes a support frame, and the support frame is fixed to the inner wall of the processing box, and a particle board with an arc-shaped structure is fixed on one side of the support frame, and a screen located below the blanking plate is fixed through the particle board, and a plurality of grinding balls 2 are fixed on the upper surface of the particle board, and a grinding ball 1 cross-distributed with the grinding ball 2 is fixed on one side of the pressure plate, and the particle board and the material roller are arranged concentrically.

[0010] Preferably, the processing box is equipped with a feeding mechanism, which includes a conveyor belt. The bottom end of the processing box is rotatably connected to the inclined conveyor belt. The inner walls at both ends of the conveyor belt are rollingly connected with rollers. The rollers are rotatably connected to the inner wall of the processing box. The lower surface of the blanking plate is rotatably connected to a connecting rod. The lower end of the connecting rod is rotatably connected to one of the ends of the rollers. Three laterally arranged material spreading rakes are fixed to the lower end of the inner wall of the processing box. The material spreading rakes are arranged above the conveyor belt. A discharge port is penetrated through the right side of the processing box, and the discharge port is fixedly connected to a discharge hopper.

[0011] Preferably, a drying mechanism is provided on the left side of the processing box, and the drying mechanism includes an air inlet. An air inlet is opened on the left side of the processing box, and an electric heating wire located inside the air inlet is fixed to the left side of the processing box, and a shell is fixed on one side of the air inlet, and an air guide hood with an opening on the right end is passed through and fixed to the shell, and a plurality of air inlet pipes are passed through and fixed to the air guide hood, an air supply pipe is fixed to the upper end of the air inlet pipe, a blower is installed on the upper end of the shell, and the air supply pipe is connected to the air outlet of the blower, three wind-disturbing blades located on one side of the electric heating wire are rotatably connected to the inner wall of the processing box, and an exhaust port with a V-shaped structure is passed through and fixed to the right side of the processing box.

[0012] Preferably, the support frame is equipped with a material blocking mechanism, which includes a mounting seat, the mounting seat is fixed to the upper surface of the end of the support frame, the mounting seat is rotatably connected to a slanted rotating plate, the lower surface of the upper end of the rotating plate is respectively in contact with one side of the material roller and the particle board, the top of the rotating plate is hingedly connected to a material blocking plate by a hinge, the upper end of the material blocking plate is rotatably connected to a rotating block, the rotating block is fixed with a sliding block, the sliding block is vertically slidably connected to the inner wall of the processing box, and a spring is fixed between the upper surface of the sliding block and the inner wall of the processing box.

[0013] Preferably, the blanking plate is connected to a reset mechanism, which includes a support rod, and the support rod is rotatably connected to the lower surface of the blanking plate. A sliding groove is provided on the left inner wall of the processing box, and a slider with an L-shaped structure is vertically slidably connected inside the sliding groove. The lower end of the support rod is rotatably connected to one side of the slider, and a plurality of springs are fixed between the lower surface of the slider and the inner wall of the processing box.

[0014] Preferably, a limiting block is fixed on the left inner surface of the processing box, a motor is fixed on the back of the processing box, and a belt is connected between the output shaft of the motor and the end bracket of the rotating shaft.

[0015] Beneficial effects of the present invention:

[0016] 1. The present invention controls the reciprocating rotation of the blanking plate through the rotation of the pressure plate, intermittently controls the raw materials to be screened and dropped for drying, and the rotation of the blanking plate pushes the coarse raw materials back to the inside of the processing box for screening and crushing again until they can be fully exposed to hot air drying. When the material roller rotates counterclockwise at a low speed, the pressure plate is driven to move until it contacts the upper surface of the blanking plate, thereby realizing intermittent separation of the blanking plate and the material roller, which makes the raw materials intermittently drop from the bottom of the blanking plate and the material roller to be screened by the screen, controls the intermittent rotation of the blanking plate to separate from the material roller, ensures that the materials are replenished while falling in batches for drying, and the rotation of the pressure plate can also mix the raw materials in the upper left interior of the processing box for preparing graphene composite catalysts and treating pollutants.

[0017] 2. When the material roller and the pressing plate continue to rotate counterclockwise, the pressing plate pushes the coarse raw material on the screen to the arc-shaped crushing plate. During the pushing process, the grinding ball 1 on one side of the pressing plate pushes the coarse material and the grinding ball 2 on the crushing plate to rub and crush it, and the fine raw material rolls to the screen and falls downward, while the uncrushed coarse raw material is brought to the left side of the material roller and the top of the blanking plate by the counterclockwise rotation of the pressing plate, until it falls intermittently from the lower end of the blanking plate again and is rubbed and crushed between grinding balls 1 and 2 until it falls from the screen when it is qualified. In this way, the fine raw material in the raw material can be screened and fallen, and the coarse raw material can be continuously circulated and ground, so that the falling raw material can be fully contacted with the hot air for drying. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Figure 1 A schematic diagram of the overall structure of a preferred embodiment of the catalyst preparation device provided by the present invention;

[0020] Figure 2 The present invention Figure 1 The back diagram shown;

[0021] Figure 3 The present invention Figure 2 The schematic diagram of the cross-section structure shown;

[0022] Figure 4 The present invention Figure 3 An enlarged schematic diagram of part A is shown;

[0023] Figure 5 It is a schematic diagram of the processing box and the material dropping mechanism of the present invention;

[0024] Figure 6 The present invention Figure 5 An enlarged schematic diagram of part B is shown;

[0025] Figure 7 It is a schematic diagram of the processing box and drying mechanism of the present invention;

[0026] Figure 8 It is a schematic diagram of the blanking mechanism and the feeding mechanism of the present invention;

[0027] Fig. 9 It is a schematic diagram of the material pressing plate and the material screening assembly of the present invention;

[0028] Fig.10 It is a schematic diagram of the blanking mechanism at the back of the processing box of the present invention.

[0029] In the figure: 1, processing box; 101, discharge hopper; 102, discharge port; 103, feed hopper; 104, exhaust port; 2, material dropping mechanism; 21, material roller; 22, rotating shaft; 23, material dropping plate; 24, material receiving plate; 25, support seat; 26, material pressing plate; 27, limit block; 28, belt; 29, motor; 3, screening assembly; 31, crushing plate; 32, screen; 33, support frame; 34, grinding ball 1; 35, grinding ball 2; 4, material blocking mechanism; 41, rotating plate; 42, Baffle plate; 43, mounting seat; 44, rotating block; 45, sliding block; 46, spring one; 47, hinge; 5, reset mechanism; 51, support rod; 52, slider; 53, slide groove; 54, spring two; 6, feeding mechanism; 61, connecting rod; 62, roller; 63, conveyor belt; 64, material rake; 7, drying mechanism; 71, shell; 72, blower; 73, air supply pipe; 74, air guide cover; 75, air inlet pipe; 76, heating wire; 77, wind disturbance blade; 78, air inlet. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1 - Fig.10 As shown, the preparation method of the catalyst for treating pollutants is based on reducing the oxygen-containing functional groups on the surface of graphene or graphene oxide by a chemical reducing agent, and at the same time, metal ions or metal oxide nanoparticles are loaded on the graphene, comprising the following steps:

[0032] Step 1: weighing the graphene composite catalyst raw material, crushing it, and drying it in layers and cyclic crushing treatment in the processing box 1; Step 2: preparing graphene oxide: the graphene composite catalyst raw material after crushing and drying is used to prepare graphene oxide by Hummers method (Hummers is a method for preparing graphite oxide); Step 3: mixing and reducing: mixing the graphene oxide with a metal salt solution, adding an appropriate amount of a reducing agent, and performing a reduction reaction under certain conditions to reduce the metal ions into nanoparticles and load them on the graphene; Step 4: washing and drying. After the reaction is completed, the product is washed with deionized water and ethanol to remove impurities, and then dried to obtain the final product.

[0033] Embodiment 1

[0034] See also Figure 1 , Figure 3 , Figure 8, a catalyst preparation device suitable for the above-mentioned preparation method, the processing box 1 of step one includes a feed hopper 103 fixed on the left side of the upper end, the processing box 1 is equipped with a blanking mechanism 2, the blanking mechanism 2 includes a rotating shaft 22, the rotating shaft 22 is rotatably connected to the inside of the processing box 1, a material roller 21 is fixed to the outside of the rotating shaft 22, and four prismatic pressure plates 26 are fixed to the outer wall of the material roller 21, a support seat 25 is fixed to the left side of the processing box 1, and the support seat 25 is rotatably connected to an inclined blanking plate 23, the upper surface of the bottom end of the blanking plate 23 is in contact with the outer surface of the material roller 21, and three prismatic pressure plates 26 are fixed to the upper surface of the blanking plate 23 The material receiving plate 24 of the prismatic structure is connected to the blanking plate 23 with a reset mechanism 5, the reset mechanism 5 includes a support rod 51, the support rod 51 is rotatably connected to the lower surface of the blanking plate 23, a slide groove 53 is provided on the left inner wall of the processing box 1, and a slider 52 of an L-shaped structure is vertically slidably connected inside the slide groove 53, the lower end of the support rod 51 is rotatably connected to one side of the slider 52, and a plurality of springs 54 are fixed between the lower surface of the slider 52 and the inner wall of the processing box 1; when working, the raw materials for preparing the graphene composite catalyst after crushing (hereinafter referred to as raw materials) enter the processing box 1 from the feed hopper 103, and pass through the left side of the material roller 21 and the blanking plate 23. The material plate 23 is supported (the elastic force of the spring 254 is sufficient to support the upper raw material of the blanking plate 23 and push the blanking plate 23 to rotate and reset). The three material receiving plates 24 are used to receive the internal raw materials and increase the friction between the materials and the upper surface of the blanking plate 23. When the raw materials need to fall for preliminary drying for oxidation, the material roller 21 rotates counterclockwise at a low speed to drive the pressure plate 26 to move until it contacts the upper surface of the blanking plate 23, and then pushes the pressure plate 26 to rotate clockwise to separate the upper surface of the bottom end of the blanking plate 23 from the material roller 21. At this time, part of the raw materials falls downward from between the bottom end of the blanking plate 23 and the material roller 21 and can contact the hot The material is dried by air contact, and as the blanking plate 23 rotates clockwise, the support rod 51 moves to push the slider 52 down, and the compression spring 54 generates an elastic force. When the pressure plate 26 rotates and separates from the upper surface of the blanking plate 23, the elastic force of the spring 54 pushes the blanking plate 23 to rotate counterclockwise to block the raw material, thereby controlling the intermittent rotation of the blanking plate 23 and the separation of the material roller 21 through the counterclockwise rotation of the material roller 21 and the pressure plate 26, so that the raw material intermittently falls for the next drying step, ensuring that the material is replenished while the material falls in batches for drying, and the rotation of the pressure plate 26 can also mix the raw materials inside the upper left side of the processing box 1.

[0035] In order to achieve the selection and drying of raw materials and the re-grinding of coarse raw materials, refer to Figure 1 , Figure 8 , Fig. 9The processing box 1 is equipped with a screening assembly 3, which includes a support frame 33, which is fixed to the inner wall of the processing box 1, and a crushing plate 31 with an arc-shaped structure is fixed on one side of the support frame 33. A screen 32 located below the blanking plate 23 is fixed through the crushing plate 31, and a plurality of grinding balls 35 are fixed on the upper surface of the crushing plate 31. A grinding ball 34 cross-distributed with the grinding ball 35 is fixed on one side of the pressure plate 26. The crushing plate 31 is coaxially arranged with the material roller 21. During operation, when the raw material is separated from the material roller 21 by the intermittent rotation of the blanking plate 23 and falls, the falling raw material falls on the arc-shaped screen 32, and the fine raw material that meets the particle size standard is screened by the screen 32 and falls downward, while the coarser raw material remains on the screen 32 and falls on the material roller. 21. When the pressing plate 26 continues to rotate counterclockwise, the pressing plate 26 pushes the coarse raw material on the screen 32 onto the arc-shaped crushing plate 31. During the pushing process, the grinding ball 1 34 on one side of the pressing plate 26 pushes the coarse material and the grinding ball 2 35 on the crushing plate 31 to frictionally crush them, and the fine raw material rolls to the screen 32 and falls downward, while the uncrushed coarse raw material is brought by the pressing plate 26 counterclockwise to the left side of the material roller 21 and the top of the blanking plate 23, until it falls intermittently from the lower end of the blanking plate 23 again and is frictionally crushed between the grinding balls 1 34 and 35 until it passes the test and falls downward from the screen 32. In this way, the fine raw material in the raw material can be screened and fallen, and the coarse raw material can be continuously circulated and ground, so that the falling raw material can be fully contacted with the hot air for drying.

[0036] In this embodiment, the processing box 1 is equipped with a feeding mechanism 6, which includes a conveyor belt 63. The bottom end of the processing box 1 is rotatably connected to the inclined conveyor belt 63. The inner walls of both ends of the conveyor belt 63 are rollingly connected with rollers 62. The rollers 62 are rotatably connected to the inner wall of the processing box 1. The lower surface of the blanking plate 23 is rotatably connected with a connecting rod 61. The lower end of the connecting rod 61 is rotatably connected to the end of one of the rollers 62. Three transversely arranged material-dispersing rakes 64 are fixed to the lower end of the inner wall of the processing box 1. The material-dispersing rakes 64 are arranged above the conveyor belt 63. A discharge port 102 is penetrated on the right side of the processing box 1, and a discharge hopper 101 is fixedly connected to the discharge port 102. The fine raw materials screened by the screen 32 fall downward in layers, can be heated by contact with hot air to remove moisture for drying, and the fallen raw materials fall onto the upper surface of the conveyor belt 63. After the conveyor belt 63 rotates clockwise, the raw material is conveyed to the right. During the conveying process, the raw material on the surface of the conveyor belt 63 is loosened and turned by the material rake 64, so that the raw material is further contacted with the hot air to dry and take away moisture. When the blanking plate 23 rotates clockwise and the lower end separates from the material roller 21 and the raw material falls, it drives the connecting rod 61 to move. The lower end of the connecting rod 61 pushes the roller 62 to rotate clockwise. When the blanking plate 23 rotates counterclockwise, the lower end of the connecting rod 61 pulls the roller 62 to continue to rotate clockwise. In this way, when the blanking plate 23 rotates intermittently to cause the material to fall, the conveyor belt 63 is driven to rotate continuously to convey the raw material to the right, until the raw material flows out from the discharge port 102 and falls into the receiving hopper for collection, and the pressing plate 26 rotates counterclockwise above the screen 32 to spread the raw material on the surface of the screen 32 and accelerate the fine raw material to pass through the screen 32 and fall.

[0037] In order to achieve the drying of intermittently falling fine raw materials, see Figure 3 , Figure 7 A drying mechanism 7 is provided on the left side of the processing box 1. The drying mechanism 7 includes an air inlet 78. The air inlet 78 is opened on the left side of the processing box 1. A heating wire 76 located inside the air inlet 78 is fixed on the left side of the processing box 1. A shell 71 is fixed on one side of the air inlet 78. A wind guide 74 with an opening at the right end is fixed through the shell 71. A plurality of air inlet pipes 75 are fixed through the air guide 74. An air supply pipe 73 is fixed on the upper end of the air inlet pipe 75. A blower 72 is installed on the upper end of the shell 71. The air supply pipe 73 is connected to the air outlet of the blower 72. The inner wall of the processing box 1 is rotatably connected to three electric heating wires 76 located inside the air inlet 78. The turbulent blade 77 on one side and the exhaust port 104 with a V-shaped structure are fixed on the right side of the processing box 1; when drying, the air is blown toward the electric heating wire 76 by the wind guide cover 74 to heat up, and the heated air is blown onto the falling fine raw materials, taking away moisture to dry the raw materials, and the moisture is discharged from the exhaust port 104. The raw materials intermittently fall from the screen 32 in batches and fully contact with the heated air, thereby improving the drying effect and preventing too much raw material from being dried at one time and affecting the drying effect. When the turbulent blade 77 blows out the air, the air speed is reduced, and the air is made to flow to various places at the bottom of the processing box 1 to contact with the raw materials for drying.

[0038] Embodiment 2

[0039] On the basis of the first embodiment, in order to further isolate the raw materials in the upper left interior of the processing box 1, see Figure 1 , Figure 3 , Figure 5 The support frame 33 is equipped with a material blocking mechanism 4, which includes a mounting seat 43, which is fixed on the upper surface of the end of the support frame 33, and the mounting seat 43 is rotatably connected to a rotating plate 41 that is inclined. The upper and lower surfaces of the rotating plate 41 are respectively in contact with the material roller 21 and one side of the particle board 31. The top of the rotating plate 41 is hingedly connected to a material blocking plate 42 through a hinge 47. The upper end of the material blocking plate 42 is rotatably connected to a rotating block 44, and the rotating block 44 is fixed with a sliding block 45. The sliding block 45 is vertically slidably connected to the inner wall of the processing box 1, and a spring 46 is fixed between the upper surface of the sliding block 45 and the inner wall of the processing box 1; the raw material is from The feed hopper 103 falls into the processing box 1 and is blocked by the baffle plate 42, so that the raw material remains on the left side of the material roller 21 and above the blanking plate 23. When the material roller 21 rotates counterclockwise to move the pressure plate 26 to the lower surface of the rotating plate 41, the rotating plate 41 is pushed to rotate clockwise. Under the action of the hinge, the baffle plate 42 is pushed to move up and rotate counterclockwise, so that the sliding block 45 moves up and compresses the spring 46 until the pressure plate 26 pushes the coarse raw material on the particle board 31 into the upper left interior of the processing box 1. At this time, the spring 46 pushes the baffle plate 42 to move and reset, so that the rotating plate 41 rotates clockwise, so that the baffle plate 42 can always isolate the raw material.

[0040] A limit block 27 is fixed on the inner surface of the left side of the processing box 1, and a motor 29 is fixed on the back of the processing box 1. The output shaft of the motor 29 and the end bracket of the rotating shaft 22 are connected by a belt 28; the motor 29 drives the belt 28 to rotate, so that the rotating shaft 22 rotates at a low speed, causing the material roller 21 to rotate counterclockwise.

[0041] Working principle: The crushed raw material enters the processing box 1 from the feed hopper 103, and the belt 28 is driven to rotate by the motor 29, so that the rotating shaft 22 rotates at a low speed, so that the material roller 21 rotates counterclockwise, and drives the pressing plate 26 to move until it contacts the upper surface of the blanking plate 23, and then pushes the pressing plate 26 to rotate clockwise, so that the upper surface of the bottom end of the blanking plate 23 is separated from the material roller 21. At this time, the raw material falls downward from the bottom end of the blanking plate 23 and the material roller 21, and is screened by the screen 32 and falls onto the upper surface of the conveyor belt 63. The air is blown by the blower 72 and the electric heating wire 76 to heat up the air and take away the heat. After the pressing plate 26 continues to rotate counterclockwise, the pressing plate 26 pushes the coarse raw material on the screen 32 onto the arc-shaped crushing plate 31. During the pushing process, the grinding ball 34 on one side of the pressing plate 26 pushes the coarse material and The grinding balls 2 35 on the crushing plate 31 are rubbed and crushed, and the fine raw materials roll onto the screen 32 and fall downward, while the uncrushed coarse raw materials are brought by the pressing plate 26 to the left side of the material roller 21 and the top of the blanking plate 23 by counterclockwise rotation, until they fall intermittently from the lower end of the blanking plate 23 again and are rubbed and crushed between the grinding balls 1 34 and 35, until they are qualified and fall downward from the screen 32, so that the fine raw materials in the raw materials can be screened and fallen, and the coarse raw materials can be continuously circulated and ground, so that the falling raw materials can be fully contacted with the hot air and dried. During the clockwise and counterclockwise rotation of the blanking plate 23, under the action of the connecting rod 61, one of the rollers 62 is rotated clockwise, so that the conveyor belt 63 is rotated to transport the fallen and dried fine raw materials to the right and automatically separate from the processing box 1 for collection, which can be used as graphene composite catalysts and for the treatment of pollutants.

[0042] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A catalyst preparation device based on treating pollutants, characterized in that: The processing box (1) comprises a processing box (1), the processing box (1) comprises a feed hopper (103) fixed on the left side of the upper end, the processing box (1) is equipped with a blanking mechanism (2), the blanking mechanism (2) comprises a rotating shaft (22), the rotating shaft (22) is rotatably connected to the inside of the processing box (1), a material roller (21) is fixed to the outside of the rotating shaft (22), four material pressing plates (26) with a prism structure are fixed to the outer wall of the material roller (21), a support seat (25) is fixed to the left side of the inside of the processing box (1), the support seat (25) is rotatably connected to a blanking plate (23) arranged obliquely, the upper surface of the bottom end of the blanking plate (23) is in contact with the outer surface of the material roller (21), and three material receiving plates (24) with a prism structure are fixed to the upper surface of the blanking plate (23); The blanking plate (23) is connected to a reset mechanism (5), and the reset mechanism (5) comprises a support rod (51), and the support rod (51) is rotatably connected to the lower surface of the blanking plate (23). A slide groove (53) is provided on the left inner wall of the processing box (1), and a slider (52) of an L-shaped structure is vertically slidably connected inside the slide groove (53). The lower end of the support rod (51) is rotatably connected to one side of the slider (52), and a plurality of springs (54) are fixed between the lower surface of the slider (52) and the inner wall of the processing box (1).

2. The catalyst preparation device based on treating pollutants according to claim 1 is characterized in that: The processing box (1) is equipped with a screening assembly (3), and the screening assembly (3) comprises a support frame (33), the support frame (33) is fixed to the inner wall of the processing box (1), a particle board (31) with an arc structure is fixed on one side of the support frame (33), a screen (32) located below the blanking plate (23) is fixed through the particle board (31), a plurality of grinding balls (35) are fixed on the upper surface of the particle board (31), and a grinding ball (34) cross-distributed with the grinding ball (35) is fixed on one side of the pressing plate (26), and the particle board (31) and the material roller (21) are arranged coaxially.

3. The catalyst preparation device based on treating pollutants according to claim 1 is characterized in that: The processing box (1) is equipped with a feeding mechanism (6), the feeding mechanism (6) comprising a conveyor belt (63), the bottom end of the processing box (1) is rotatably connected to the inclined conveyor belt (63), the inner walls of both ends of the conveyor belt (63) are rollingly connected to rollers (62), the rollers (62) are rotatably connected to the inner wall of the processing box (1), the lower surface of the blanking plate (23) is rotatably connected to a connecting rod (61), the lower end of the connecting rod (61) is rotatably connected to the end of one of the rollers (62), three transversely arranged material spreading rakes (64) are fixed to the lower end of the inner wall of the processing box (1), the material spreading rakes (64) are arranged above the conveyor belt (63), and a discharge port (102) is penetrated through the right side of the processing box (1), and the discharge port (102) is fixedly connected to a discharge hopper (101).

4. The catalyst preparation device based on treating pollutants according to claim 1 is characterized in that: A drying mechanism (7) is arranged on the left side of the processing box (1), the drying mechanism (7) comprising an air inlet (78), the air inlet (78) is opened on the left side of the processing box (1), an electric heating wire (76) located inside the air inlet (78) is fixed on the left side of the processing box (1), a shell (71) is fixed on one side of the air inlet (78), an air guide cover (74) with an opening at the right end is passed through and fixed on the shell (71), a plurality of air inlet pipes (75) are passed through and fixed on the air guide cover (74), an air supply pipe (73) is fixed on the upper end of the air inlet pipe (75), a blower (72) is installed on the upper end of the shell (71), the air supply pipe (73) is connected to the air outlet of the blower (72), three wind disturbance blades (77) located on one side of the electric heating wire (76) are rotatably connected to the inner wall of the processing box (1), and an exhaust port (104) with a V-shaped structure is passed through and fixed on the right side of the processing box (1).

5. The catalyst preparation device based on treating pollutants according to claim 2 is characterized in that: The support frame (33) is provided with a material blocking mechanism (4), and the material blocking mechanism (4) comprises a mounting seat (43), the mounting seat (43) being fixed on the upper surface of the end of the support frame (33), the mounting seat (43) being rotatably connected to a rotating plate (41) which is arranged obliquely, the upper and lower surfaces of the rotating plate (41) respectively being in contact with a material roller (21) and one side of a particle board (31), the top of the rotating plate (41) being hingedly connected to a material blocking plate (42) through a hinge (47), the upper end of the material blocking plate (42) being rotatably connected to a rotating block (44), the rotating block (44) being fixed with a sliding block (45), the sliding block (45) being vertically slidably connected to the inner wall of the processing box (1), and a spring (46) being fixed between the upper surface of the sliding block (45) and the inner wall of the processing box (1).

6. The catalyst preparation device based on treating pollutants according to claim 1 is characterized in that: A limit block (27) is fixed on the inner surface of the left side of the processing box (1), a motor (29) is fixed on the back of the processing box (1), and a belt (28) is connected between the output shaft of the motor (29) and the end bracket of the rotating shaft (22).

Images