Device and method for preparing pseudo-boehmite

Abstract

The present invention relates to the technical field of pseudo-boehmite, and in particular to a device and method for preparing pseudo-boehmite, comprising a reaction tank, wherein a guide assembly is movably installed inside the reaction tank, wherein the guide assembly comprises a slide plate and a second slip ring, wherein a first slide bar is integrally formed inside the reaction tank, wherein the slide plate is slidably installed on the outside of the first slide bar, and wherein the slide plate is located below the second slip ring. During the up and down movement of the slide plate and the second slip ring, the solubility and reaction rate of the reaction gas are increased by increasing the pressure, and the distribution of the reaction gas is further diffused by the guidance of the arc plate and the rotation of the stirring blade, thereby improving the uniformity of the reaction. The reaction gas is evenly distributed inside the reaction tank by guiding the fan blade, thereby improving the uniformity of the reaction, and the raw materials are diverted by the side pipe to improve the mixing effect of the raw materials. The reaction gas moves from the bottom to the top of the raw materials and is stirred by the stirring blade at the same time, thereby improving the mixing effect and reaction efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of pseudo-boehmite, and in particular to a device and method for preparing pseudo-boehmite. Background Art

[0002] Pseudo-boehmite is an important inorganic material, which is widely used in the fields of catalysts, adsorbents, ceramic materials, etc. Its preparation process involves chemical reactions, and usually uses raw sodium aluminate solution and carbon dioxide for neutralization. The reactant obtained after the neutralization reaction is pseudo-boehmite. For example, a pseudo-boehmite production reaction device disclosed in Publication No. CN219502684U, when in use, the raw sodium aluminate solution is introduced into the tank through a feed pipe, and then carbon dioxide is provided to the tank through a storage tank. The carbon dioxide is neutralized with the sodium aluminate solution, and the driving member drives the rotating shaft to rotate. The stirring blade can fully stir the raw sodium aluminate solution. When the rotating shaft rotates, the stirring blade can fully stir the raw sodium aluminate solution. During the process, the center plate rotates, and the carbon dioxide rotates when it is ejected from the air outlet, thereby evenly supplying the carbon dioxide into the tank body. However, the carbon dioxide enters from the top of the tank body, causing the carbon dioxide to suspend above the sodium aluminate solution, resulting in the inability of the sodium aluminate solution to react and mix at the bottom. At the same time, the single rotating stirring blade can only make the reaction solution and carbon dioxide rotate in one direction, which cannot improve the mixing efficiency. Instead, it has the effect of guiding the carbon dioxide upward, thereby reducing the mixing effect. When discharging the reaction liquid, the reactants will adhere to the inner wall of the tank body, and the reaction liquid adhered to the inner wall of the tank body cannot be discharged or cleaned, thereby affecting the next reaction effect. Summary of the Invention

[0003] The purpose of the present invention is to solve the problems in the background technology and to propose a device and method for preparing pseudo-boehmite.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A pseudo-boehmite preparation device includes a reaction tank, wherein a guide assembly is movably installed inside the reaction tank, the guide assembly including a slide plate and a second slip ring. A first slide bar is integrally formed inside the reaction tank, and the slide plate is slidably installed on the outside of the first slide bar. The slide plate is located below the second slip ring and contacts the second slip ring. A first spring is provided between the top of the second slip ring and the top of the inner wall of the reaction tank. A plurality of evenly distributed fan blades are rotatably installed on the bottom of the slide plate. A plurality of evenly distributed movable cavities are integrally formed on the top of the slide plate, wherein the movable cavities correspond to the fan blades one-to-one. An air bag is provided inside each movable cavity, and the air bag is located above the fan blade.

[0006] A stirring assembly is movably installed below the guide assembly, and the stirring assembly includes a rotating shaft, a stirring blade and a side tube. The side tube is fixedly installed on the outside of the reaction tank and is interconnected with the reaction tank. An electric motor 1 is fixedly installed on the top of the reaction tank, and the output shaft of the electric motor 1 is fixedly connected to the rotating shaft. The stirring blade is fixedly installed on the outside of the rotating shaft, and the slide plate is movably inserted into the outside of the rotating shaft.

[0007] In the above-mentioned device for preparing pseudo-boehmite, a second air pipe is fixedly installed on the outside of the reaction tank, a telescopic contact is provided at the bottom of the second air pipe, an arc plate is rotatably installed on the inner wall of the reaction tank, the arc plate and the telescopic contact are fixedly connected, and the top of the second air pipe is located above the second slip ring.

[0008] In the above-mentioned device for preparing pseudo-boehmite, a slip ring 1 is slidably installed inside the reaction tank, and the slip ring 1 is located below the slip ring 2. A number of evenly distributed spring locking blocks are slidably installed on the inner and outer sides of the slip ring 1. The inner wall of the reaction tank and the side wall of the slide are respectively provided with a number of evenly distributed locking grooves 2 and 1. The locking grooves 2 correspond one-to-one to the spring locking blocks on the outer side of the slip ring 1, and the locking grooves 1 correspond one-to-one to the spring locking blocks on the inner side of the slip ring 1.

[0009] In the above-mentioned device for preparing pseudo-boehmite, the outer peripheral wall of the rotating shaft is provided with a slide groove 1, a spiral groove 1 and a spiral groove 2, the two ends of the spiral groove 1 are respectively connected to the side walls on both sides of the slide groove 1, the top of the spiral groove 2 is connected to the side wall of the slide groove 1, and the side wall of the slide plate is provided with a sliding ball, and the sliding ball is slidably installed inside the slide groove 1, the spiral groove 1 and the spiral groove 2.

[0010] In the above-mentioned device for preparing pseudo-boehmite, the spiral groove one and the spiral groove two have the same rotation direction, the top of the spiral groove one and the top of the spiral groove two are located on the side wall of the same side of the slide groove, and the spiral groove one is located above the spiral groove two.

[0011] In the above-mentioned device for preparing pseudo-boehmite, a discharge pipe is integrally formed at the bottom of each side tube, and an air pipe 1 is fixedly installed above each discharge pipe. A gas tank is placed at the bottom of the reaction tank, and an air pump is fixedly installed at the exhaust port of the gas tank. The output end of the air pump and air pipe 1 are fixedly connected.

[0012] In the above-mentioned device for preparing pseudo-boehmite, the side tube is arc-shaped, and the two ends of the side tube are respectively located in the middle and bottom of the reaction tank. A feed port is fixedly installed on the side wall of the reaction tank, and the top of the side tube is located below the feed port.

[0013] A method for preparing pseudo-boehmite, which uses the above-mentioned pseudo-boehmite preparation device, specifically includes the following steps: S1, after the raw material is discharged into the interior of the reaction tank through the feed port, the feed port is closed, the motor 1 and the air pump are started, the motor 1 drives the stirring blade to rotate forward, the stirring blade stirs the raw material to form a vortex, so that the raw material flows into the side pipe for diversion and flows into the interior of the reaction tank again through the side pipe, the air pump extracts the reaction gas inside the gas tank and discharges it to the bottom of the side pipe, so that the reaction gas follows the raw material into the interior of the reaction tank, and the reaction gas moves from the bottom to the top of the raw material, and at the same time cooperates with the stirring blade to stir, thereby improving the reaction effect and reaction efficiency between the reaction gas and the raw material; S2, during the process of the stirring blade stirring the raw material, the rotating shaft and the slip ring 2 drive the slide plate to move up and down reciprocatingly, at this time the slide plate and the slip ring 2 form a piston, when the slide plate and the slip ring 2 move downward, the pressure between the piston and the bottom of the reaction tank increases, and the solubility of the reaction gas is increased by the increase in pressure, further Improve the reaction efficiency. When the slide plate and the second slip ring move upward, the space between the piston and the bottom of the reaction tank is restored, and the space between the piston and the top of the reaction tank is reduced, so that the telescopic contact drives the arc plate to rotate. At this time, the arc plate guides the raw materials flowing into the reaction tank through the side tube, so that the raw materials and the reaction gas hit the stirring blades, further diffusing the distribution of the reaction gas and improving the uniformity of the reaction. When the slide plate and the second slip ring move up and down, the air bag drives the fan blades to rotate, so that the fan blades guide the reaction gas to flow, and improve the uniformity of the reaction gas distribution. S3, after the reaction of the raw materials and the reaction gas is completed, the motor 1 is reversed, the discharge pipe is opened, the motor 1 drives the stirring blades to reverse, and at the same time drives the slide plate to move downward. When the slide plate and the first slip ring are locked with each other, the slide plate and the first slip ring form a piston. At this time, the reactants are squeezed out of the reaction tank by the downward movement of the piston, the first slip ring scrapes off the reactants adhering to the inner wall of the reaction tank, and the stirring blades drive the reactants to form a vortex to flush the first slip ring, so that the reactants are completely discharged from the interior of the reaction tank.

[0014] Compared with the existing technology, the advantages of the present invention are:

[0015] 1. When the slide plate and the second slip ring move downward, the pressure between the slide plate and the second slip ring and the bottom of the reaction tank increases, and the solubility of the reaction gas and the reaction rate are improved by the increase in pressure. When the slide plate and the second slip ring move upward, the pressure between the slide plate and the second slip ring and the top of the reaction tank increases, so that the arc plate guides the raw materials flowing into the reaction tank through the side pipe to hit the stirring blade. The rotation of the stirring blade further diffuses the distribution of the reaction gas and improves the uniformity of the reaction.

[0016] 2. During the up and down movement of the slide plate and the second slip ring, the airbag drives the fan blades to rotate, so that the reaction gas is evenly distributed inside the reaction tank through the guidance of the fan blades, thereby improving the uniformity of the reaction.

[0017] 3. After the raw materials form a vortex, the side pipe diverts the raw materials to improve the mixing effect of the raw materials. At the same time, the reaction gas passes through a row of gas pipes to the bottom of the side pipe, so that the reaction gas follows the raw materials into the interior of the reaction tank for mixing. The reaction gas moves from the bottom to the top of the raw materials and is stirred by the stirring blades at the same time, thereby improving the mixing effect and reaction efficiency between the reaction gas and the raw materials.

[0018] 4. After the reaction between the raw materials and the reaction gas is completed, the discharge pipe is opened, and the motor 1 drives the stirring blade to reverse and at the same time drives the slide plate to move downward. When the slide plate and the slip ring 1 are locked with each other, the slide plate and the slip ring 1 form a piston. At this time, the reactants are squeezed out of the reaction tank by the downward movement of the piston, and the slip ring 1 scrapes off the reactants adhering to the inner wall of the reaction tank. At the same time, the stirring blade drives the reactants to form a vortex to flush the slip ring 1, so that the reactants are completely discharged from the interior of the reaction tank to prevent the reactants from remaining inside the reaction tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is a cross-sectional view of the overall structure of the present invention;

[0021] Figure 3 For the present invention Figure 2 A magnified schematic diagram of point A in the middle;

[0022] Figure 4 This is a cross-sectional view of the structure inside the reaction tank of the present invention;

[0023] Figure 5 Schematic diagram of the structure of the slide plate and the rotating shaft in the present invention;

[0024] Figure 6 A partial cross-sectional view of the slide plate of the present invention;

[0025] Figure 7 This is a disassembly diagram of the slip ring 1 in the present invention;

[0026] Figure 8 A top view of the internal structure of the reaction tank in the present invention;

[0027] Figure 9 It is a bottom view of the internal structure of the reaction tank in the present invention.

[0028] In the figure: 1. reaction tank; 11. side pipe; 111. discharge pipe; 112. air pipe 1; 113. air tank; 114. air pump; 12. feed port; 13. slide bar 1; 21. rotating shaft; 211. stirring blade; 212. motor 1; 213. slide groove 1; 214. spiral groove 1; 215. spiral groove 2; 22. slide plate; 221. slip ring 1; 222. slip ring 2; 223. spring 1; 224. lock groove 1; 225. movable chamber; 231. spring lock block; 232. lock groove 2; 233. fan blade; 234. air bag; 24. arc plate; 241. air pipe 2; 242. telescopic contact. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0031] Reference Figure 1 - Figure 9 As shown, a pseudo-boehmite preparation device includes a reaction tank 1, the interior of the reaction tank 1 is movably installed with a guide assembly, the guide assembly includes a slide plate 22 and a second slip ring 222, the interior of the reaction tank 1 is integrally formed with a slide bar 13, the slide plate 22 is slidably installed on the outside of the slide bar 13, the slide plate 22 is located below the second slip ring 222 and contacts the second slip ring 222, a spring 1 223 is provided between the top of the second slip ring 222 and the top of the inner wall of the reaction tank 1, a plurality of evenly distributed fan blades 233 are rotatably installed at the bottom of the slide plate 22, a plurality of evenly distributed active cavities 225 are integrally formed on the top of the slide plate 22, the active cavities 225 and the fan blades 233 correspond one to one, and an air bag 234 is provided inside each active cavity 225, and the air bag 234 is located above the fan blade 233;

[0032] A stirring assembly is movably installed below the guide assembly, and the stirring assembly includes a rotating shaft 21, a stirring blade 211 and a side tube 11. The side tube 11 is fixedly installed on the outside of the reaction tank 1 and is interconnected with the reaction tank 1. A motor 212 is fixedly installed on the top of the reaction tank 1. The output shaft of the motor 212 is fixedly connected to the rotating shaft 21. The stirring blade 211 is fixedly installed on the outside of the rotating shaft 21, and the slide plate 22 is movably inserted into the outside of the rotating shaft 21.

[0033] During the reaction between the raw materials and the reaction gas, the motor 212 drives the stirring blade 211 to rotate forward through the rotating shaft 21. When the reaction is completed, the motor 212 drives the stirring blade 211 to rotate reversely through the rotating shaft 21. During the process of the stirring blade 211 stirring the raw materials, the raw materials form a vortex.

[0034] like Figure 5 As shown, the outer peripheral wall of the rotating shaft 21 is provided with a sliding groove 1 213, a spiral groove 1 214 and a spiral groove 2 215. The two ends of the spiral groove 1 214 are respectively connected to the side walls on both sides of the sliding groove 1 213, and the top of the spiral groove 2 215 is connected to the side wall of the sliding groove 1 213. The side wall of the slide plate 22 is provided with a sliding ball, and the sliding ball is slidably installed inside the sliding groove 1 213, spiral groove 1 214 and spiral groove 2 215. The spiral groove 1 214 and the spiral groove 2 215 have the same rotation direction. The top of the spiral groove 1 214 and the top of the spiral groove 2 215 are located on the side wall on the same side of the sliding groove 1 213, and the spiral groove 1 214 is located above the spiral groove 2 215.

[0035] Among them, the working principle of the slide plate 22 is: when the rotating shaft 21 rotates forward, the sliding ball slides inside the spiral groove 1 214 and the slide groove 1 213. When the sliding ball slides inside the spiral groove 1 214, the slide plate 22 contacts and drives the slip ring 222 to move upward. When the sliding ball slides into the inside of the slide groove 1 213, the spring 1 223 is released, so that the slip ring 222 drives the slide plate 22 to move downward quickly. The sliding of the sliding ball inside the spiral groove 1 214 and the slide groove 1 213 and the release of the spring 1 223 make the slide plate 22 and the slip ring 2 222 move up and down reciprocatingly. When the slide plate 22 and the slip ring 2 222 contact each other, the slide plate 22 and the slip ring 2 222 form a piston.

[0036] Further references Figure 3 、 Figure 6 and Figure 9 To illustrate, the working principle of the airbag 234 is as follows: when the slide plate 22 and the second slip ring 222 move downward, the pressure between the slide plate 22 and the second slip ring 222 and the bottom of the reaction tank 1 increases, the airbag 234 is inflated, and the gas pushes the fan blade 233 to rotate; when the slide plate 22 and the second slip ring 222 move upward, the pressure between the slide plate 22 and the second slip ring 222 and the top of the reaction tank 1 increases, the airbag 234 is exhausted, and the gas pushes the fan blade 233 to rotate, so that when the slide plate 22 and the second slip ring 222 move up and down, the airbag 234 drives the fan blade 233 to rotate, and guides the reaction gas inside the reaction tank 1 through the fan blade 233, thereby improving the uniformity of the distribution of the reaction gas inside the reaction tank 1.

[0037] like Figure 2-Figure 5 and Figure 7As shown, a slip ring 1 221 is slidably installed inside the reaction tank 1, and the slip ring 1 221 is located below the slip ring 2 222. A number of evenly distributed spring lock blocks 231 are slidably installed on the inner and outer sides of the slip ring 1 221. The inner wall of the reaction tank 1 and the side wall of the slide plate 22 are respectively provided with a number of evenly distributed lock grooves 232 and lock grooves 1 224. The lock grooves 232 and the spring lock blocks 231 on the outer side of the slip ring 1 221 correspond one-to-one, and the lock grooves 1 224 and the spring lock blocks 231 on the inner side of the slip ring 1 221 correspond one-to-one.

[0038] Among them, the working principle of the slip ring 1 221 is: when the rotating shaft 21 is reversed, the sliding ball slides into the spiral groove 2 215 through the sliding groove 1 213, causing the slide plate 22 to slide downward. When the spring locking block 231 slides into the locking groove 1 224, the slip ring 1 221 and the slide plate 22 are locked with each other. At this time, the slide plate 22 and the slip ring 1 221 form a piston. The slide plate 22 drives the slip ring 1 221 to move downward, scraping off the reactants adhered to the inner wall of the reaction tank 1. At the same time, the stirring blade 211 drives the reactants to form a vortex and flush the slip ring 1 221, so that the reactants are completely discharged from the interior of the reaction tank 1 to prevent the reactants from remaining inside the reaction tank 1.

[0039] like Figure 1 、 Figure 4 and Figure 8 As shown, a second air pipe 241 is fixedly installed on the outer side of the reaction tank 1, a telescopic contact 242 is provided at the bottom of the second air pipe 241, an arc plate 24 is rotatably installed on the inner wall of the reaction tank 1, the arc plate 24 and the telescopic contact 242 are fixedly connected, and the top of the second air pipe 241 is located above the second slip ring 222.

[0040] Among them, the working principle of the arc plate 24 is: when the slide plate 22 and the second slip ring 222 move downward, the pressure between the slide plate 22 and the second slip ring 222 and the bottom of the reaction tank 1 increases, and the solubility of the reaction gas is increased by the increase in pressure, further improving the reaction efficiency. When the slide plate 22 and the second slip ring 222 move upward, the pressure between the slide plate 22 and the second slip ring 222 and the top of the reaction tank 1 increases, causing the telescopic contact 242 to collide and drive the arc plate 24 to rotate. At this time, the arc plate 24 guides the raw materials flowing into the reaction tank 1 through the side tube 11, so that the raw materials drive the reaction gas to hit the stirring blade 211. Through the rotation of the stirring blade 211, the distribution of the reaction gas is further diffused, thereby improving the uniformity of the reaction.

[0041] like Figure 1 、 Figure 2 and Figure 8As shown, a discharge pipe 111 is integrally formed at the bottom of each side tube 11, and an air pipe 112 is fixedly installed above each discharge pipe 111. A gas tank 113 is placed at the bottom of the reaction tank 1, and an air pump 114 is fixedly installed at the exhaust port of the gas tank 113. The output end of the air pump 114 and the air pipe 112 are fixedly connected. The side tube 11 is arc-shaped, and the two ends of the side tube 11 are respectively located in the middle and bottom of the reaction tank 1. A feed port 12 is fixedly installed on the side wall of the reaction tank 1, and the top of the side tube 11 is located below the feed port 12.

[0042] Among them, after the raw material forms a vortex, the top of the vortex flows into the inside of the side tube 11 from the top of the side tube 11, and the raw material flowing into the inside of the side tube 11 flows into the inside of the reaction tank 1 again through the bottom of the side tube 11. The diversion of the side tube 11 is used to improve the mixing effect of the raw materials. The air pump 114 extracts the reaction gas inside the gas tank 113 and discharges it to the bottom of the side tube 11 through the air pipe 112, so that the reaction gas follows the raw material into the interior of the reaction tank 1 for mixing. The reaction gas moves from the bottom to the top of the raw material and is stirred by the stirring blade 211 at the same time, thereby improving the mixing effect and reaction efficiency between the reaction gas and the raw material.

[0043] A method for preparing pseudo-boehmite, which uses the above-mentioned pseudo-boehmite preparation device, specifically includes the following steps: S1, after the raw material is discharged into the interior of the reaction tank 1 through the feed port 12, the feed port 12 is closed, the motor 212 and the air pump 114 are started, the motor 212 drives the stirring blade 211 to rotate forward, the stirring blade 211 stirs the raw material to form a vortex, so that the raw material flows into the side pipe 11 for diversion, and flows into the interior of the reaction tank 1 again through the side pipe 11, the air pump 114 extracts the reaction gas inside the gas tank 113 and discharges it to the bottom of the side pipe 11, so that the reaction The gas follows the raw materials into the interior of the reaction tank 1, and moves from the bottom to the top of the raw materials through the reaction gas, and at the same time, the stirring blade 211 is used for stirring, thereby improving the reaction effect and reaction efficiency between the reaction gas and the raw materials; S2, during the process of the stirring blade 211 stirring the raw materials, the rotating shaft 21 and the second slip ring 222 drive the slide plate 22 to move up and down reciprocatingly. At this time, the slide plate 22 and the second slip ring 222 form a piston. When the slide plate 22 and the second slip ring 222 move downward, the pressure between the piston and the bottom of the reaction tank 1 increases. The increase in pressure increases the solubility of the reaction gas, further improving the reaction efficiency. When the slide plate 22 and the second slip ring 222 move upward, the space between the piston and the bottom of the reaction tank 1 is restored, and the space between the piston and the top of the reaction tank 1 is reduced, so that the telescopic contact 242 drives the arc plate 24 to rotate. At this time, the arc plate 24 guides the raw materials flowing into the reaction tank 1 through the side tube 11, so that the raw materials and the reaction gas hit the stirring blade 211, further diffusing the distribution of the reaction gas and improving the uniformity of the reaction. When the slide plate 22 and the second slip ring 222 move up and down, the air bag 234 drives the fan blade 233 to rotate, so that the fan blade 233 guides the reaction gas to flow, improving the reaction gas Uniformity of distribution; S3. After the reaction of the raw materials and the reaction gas is completed, the motor 212 is reversed, the discharge pipe 111 is opened, the motor 212 drives the stirring blade 211 to reverse, and at the same time drives the slide 22 to move downward. When the slide 22 and the slip ring 221 are locked with each other, the slide 22 and the slip ring 221 form a piston. At this time, the reactants are squeezed out of the reaction tank 1 by the downward movement of the piston, and the slip ring 221 scrapes off the reactants adhering to the inner wall of the reaction tank 1. At the same time, the stirring blade 211 drives the reactants to form a vortex to flush the slip ring 221, so that the reactants are completely discharged from the interior of the reaction tank 1.

[0044] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are common means well known to those skilled in the art.

[0045] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A device for preparing pseudo-boehmite, comprising a reaction tank (1), characterized in that: The reaction tank (1) is internally movably provided with a guide assembly, the guide assembly comprising a slide plate (22) and a second slip ring (222). The reaction tank (1) is internally integrally provided with a first slide bar (13). The slide plate (22) is slidably provided on the outside of the first slide bar (13). The slide plate (22) is located below the second slip ring (222) and contacts the second slip ring (222). A first spring (223) is provided between the top of the second slip ring (222) and the top of the inner wall of the reaction tank (1). The bottom of the slide plate (22) is rotatably provided with a plurality of evenly distributed fan blades (233). The top of the slide plate (22) is integrally provided with a plurality of evenly distributed movable cavities (225). The movable cavities (225) correspond to the fan blades (233) on a one-to-one basis. An air bag (234) is provided inside each of the movable cavities (225). The air bag (234) is located above the fan blade (233). A stirring assembly is movably mounted below the guide assembly, the stirring assembly comprising a rotating shaft (21), a stirring blade (211) and a side tube (11), the side tube (11) being fixedly mounted on the outside of the reaction tank (1) and being in communication with the reaction tank (1), a motor 1 (212) being fixedly mounted on the top of the reaction tank (1), an output shaft of the motor 1 (212) being fixedly connected to the rotating shaft (21), the stirring blade (211) being fixedly mounted on the outside of the rotating shaft (21), and the slide plate (22) being movably plugged into the outside of the rotating shaft (21); The reaction tank (1) is internally slidably mounted with a slip ring 1 (221), the slip ring 1 (221) being located below the slip ring 2 (222), the inner and outer sides of the slip ring 1 (221) being slidably mounted with a plurality of evenly distributed spring lock blocks (231), the inner wall of the reaction tank (1) and the side wall of the slide plate (22) being respectively provided with a plurality of evenly distributed lock grooves 2 (232) and lock grooves 1 (224), the lock grooves 2 (232) and the spring lock blocks (231) on the outer side of the slip ring 1 (221) being in one-to-one correspondence, the lock grooves 1 (224) and the spring lock blocks (231) on the inner side of the slip ring 1 (221) being in one-to-one correspondence; When the slide plate (22) and the second slip ring (222) move downward, the pressure between the slide plate (22) and the second slip ring (222) and the bottom of the reaction tank (1) increases. When the slide plate (22) and the second slip ring (222) move upward, the pressure between the slide plate (22) and the second slip ring (222) and the top of the reaction tank (1) increases. The motor (212) drives the stirring blade (211) to reverse and drives the slide plate (22) to move downward. When the slide plate (22) and the first slip ring (221) are locked with each other, the slide plate (22) and the first slip ring (221) form a piston, and the first slip ring (221) scrapes the reactants adhering to the inner wall of the reaction tank (1).

2. The device for preparing pseudo-boehmite according to claim 1, characterized in that: A second air pipe (241) is fixedly mounted on the outside of the reaction tank (1), a telescopic contact (242) is provided at the bottom of the second air pipe (241), an arc plate (24) is rotatably mounted on the inner wall of the reaction tank (1), the arc plate (24) and the telescopic contact (242) are fixedly connected, and the top of the second air pipe (241) is located above the second slip ring (222).

3. The device for preparing pseudo-boehmite according to claim 1, characterized in that: The outer peripheral wall of the rotating shaft (21) is provided with a sliding groove (213), a spiral groove (214) and a spiral groove (215), the two ends of the spiral groove (214) are respectively connected to the side walls of the sliding groove (213), the top of the spiral groove (215) is connected to the side wall of the sliding groove (213), and the side wall of the slide plate (22) is provided with a sliding ball, and the sliding ball is slidably installed inside the sliding groove (213), the spiral groove (214) and the spiral groove (215).

4. The device for preparing pseudo-boehmite according to claim 3, characterized in that: The spiral groove 1 (214) and the spiral groove 2 (215) have the same rotation direction, the top of the spiral groove 1 (214) and the top of the spiral groove 2 (215) are located on the side wall of the same side of the sliding groove 1 (213), and the spiral groove 1 (214) is located above the spiral groove 2 (215).

5. The device for preparing pseudo-boehmite according to claim 1, characterized in that: A discharge pipe (111) is integrally formed at the bottom of each side tube (11), and an air pipe (112) is fixedly installed above each discharge pipe (111). A gas tank (113) is placed at the bottom of the reaction tank (1), and an air pump (114) is fixedly installed at the exhaust port of the gas tank (113). The output end of the air pump (114) and the air pipe (112) are fixedly connected.

6. The device for preparing pseudo-boehmite according to claim 1, characterized in that: The side tube (11) is arc-shaped, and the two ends of the side tube (11) are respectively located in the middle and the bottom of the reaction tank (1). A feed port (12) is fixedly mounted on the side wall of the reaction tank (1), and the top of the side tube (11) is located below the feed port (12).

7. A method for preparing pseudo-boehmite, characterized in that: The preparation method uses a pseudo-boehmite preparation device as described in any one of claims 1 to 6, and specifically comprises the following steps: S1. After the raw materials are discharged into the interior of the reaction tank (1) through the feed port (12), the feed port (12) is closed, and the motor 1 (212) and the air pump (114) are started. The motor 1 (212) drives the stirring blade (211) to rotate forward. The stirring blade (211) stirs the raw materials to form a vortex, so that the raw materials flow into the side pipe (11) for diversion and flow into the interior of the reaction tank (1) again through the side pipe (11). The air pump (114) extracts the reaction gas inside the gas tank (113) and discharges it to the bottom of the side pipe (11), so that the reaction gas follows the raw materials into the interior of the reaction tank (1), and moves from the bottom to the top of the raw materials through the reaction gas. At the same time, the stirring blade (211) is used for stirring, thereby improving the reaction effect and reaction rate between the reaction gas and the raw materials; S2. During the stirring process of the stirring blade (211), the rotating shaft (21) and the second slip ring (222) drive the slide plate (22) to move up and down reciprocatingly. At this time, the slide plate (22) and the second slip ring (222) form a piston. When the slide plate (22) and the second slip ring (222) move downward, the pressure between the piston and the bottom of the reaction tank (1) increases. By increasing the pressure, the solubility of the reaction gas is increased, and the reaction efficiency is further improved. When the slide plate (22) and the second slip ring (222) move upward, the pressure between the piston and the bottom of the reaction tank (1) is restored. The space between the tops of the reaction tanks (1) is reduced, so that the telescopic contact (242) drives the arc plate (24) to rotate. At this time, the arc plate (24) guides the raw materials flowing into the reaction tank (1) through the side tube (11), so that the raw materials and the reaction gas collide with the stirring blade (211), further diffusing the distribution of the reaction gas and improving the uniformity of the reaction. When the slide plate (22) and the second slip ring (222) move up and down, the air bag (234) drives the fan blade (233) to rotate, so that the fan blade (233) guides the reaction gas to flow, thereby improving the uniformity of the reaction gas distribution. S3. After the reaction between the raw materials and the reaction gas is completed, the motor 1 (212) is reversed, the discharge pipe (111) is opened, and the motor 1 (212) drives the stirring blade (211) to reverse, and at the same time drives the slide plate (22) to move downward. When the slide plate (22) and the slip ring 1 (221) are locked with each other, the slide plate (22) and the slip ring 1 (221) form a piston. At this time, the reactants are squeezed out of the reaction tank (1) by the downward movement of the piston. The slip ring 1 (221) scrapes off the reactants adhering to the inner wall of the reaction tank (1). At the same time, the stirring blade (211) drives the reactants to form a vortex to flush the slip ring 1 (221), so that the reactants are completely discharged from the interior of the reaction tank (1).

Images