Sol acidification device

Abstract

The utility model relates to the field of catalyst production, and discloses a sol acidification device which comprises a reaction kettle and an acid liquor distributor arranged at the top of the reaction kettle, and an acid liquor distribution mechanism comprises an acid liquor container and a plurality of acid liquor droppers which are communicated with the bottom of the acid liquor container and are distributed at intervals along the horizontal direction; the acid liquor conveying device is used for conveying acid liquor into the acid liquor container, and the acid liquor in the acid liquor container flows into the reaction kettle from the plurality of acid liquor drippers under the driving of gravity; the stirring mechanism is used for stirring the solution in the reaction kettle. Therefore, according to the sol acidification device provided by the utility model, the phenomenon that reactants such as acid liquor and powder cannot be uniformly mixed due to non-uniform distribution of the acid liquor in the reaction kettle in the horizontal direction is avoided, and the quality of sol slurry produced by the sol acidification device is improved.

Description

Technical Field

[0001] The utility model relates to the field of catalyst production, in particular to a sol acidification device. Background Art

[0002] The oil column forming process is an important method for producing spherical carriers or catalysts. This method involves dripping a sol slurry into an oil column, causing the peptized particles to form spheres in the upper oil phase and then gel in the lower liquid phase. The gelled particles are then aged, dried, and calcined to yield spherical solid particles. The resulting pellets exhibit uniform structure, high strength, and low wear, and are widely used in the preparation of fixed- and moving-bed catalysts, carriers, and adsorbents.

[0003] The sol acidification device is one of the key equipment in the oil column forming process. The device can form a sol slurry after a specific acidification treatment of powders such as alumina powder. The quality of the sol slurry is an important factor in determining the quality of catalyst carrier pellets.

[0004] Existing sol acidification devices continuously add acid to a reactor through a fixed connecting pipe. After mixing to form a gel at a controlled temperature, the acidification process is completed after aging for a certain period of time. The acid added to the reactor is concentrated below the bottom inlet of the straight pipe. The acid concentration at this location is relatively high, making it difficult to evenly disperse the acid in the solution within the reactor. Due to the large volume of the reactor and the coarse liquid column of the added acid, even stirring cannot achieve uniform dispersion of the acid. This results in uneven mixing of the acid and reactants such as the powder, causing a large number of primary reaction particles to unevenly aggregate into clusters and form granular or flocculent byproducts, reducing the quality of the sol slurry. Utility Model Content

[0005] The purpose of the utility model is to overcome the problem in the prior art that the acid solution is difficult to be evenly dispersed in the solution in the reactor.

[0006] In order to achieve the above-mentioned purpose, the utility model provides, on the one hand, a sol acidification device including a reactor; an acid liquid distribution mechanism, which is arranged at the top of the reactor, and the acid liquid distribution mechanism includes an acid liquid container and a plurality of acid liquid drippers distributed at intervals in the horizontal direction and connected to the bottom of the acid liquid container; an acid liquid conveying mechanism, which is used to convey acid liquid into the acid liquid container, and the acid liquid in the acid liquid container flows into the reactor from the plurality of acid liquid drippers under gravity drive; and a stirring mechanism, which is used to stir the solution in the reactor.

[0007] Optionally, the acid dripper includes a needle dripper and an acid dropper, one end of the acid dropper passes through the bottom of the acid distribution mechanism and is connected to the interior of the acid container, and the other end is connected to the needle dripper.

[0008] Optionally, the acid dripper is detachably connected to the acid container.

[0009] Optionally, the top of the reactor is provided with a communication pipe in communication with the reactor, and the acid liquid distribution mechanism is connected to the top outlet of the communication pipe.

[0010] Optionally, the acid liquid container comprises a top plate, a ring plate and a bottom plate, the ring plate is connected between the top plate and the bottom plate, a plurality of through holes are arranged on the bottom plate in the horizontal direction thereof, and the acid liquid drop heads are inserted into the through holes.

[0011] Optionally, the periphery of the bottom plate is fixedly connected to the inner side of the ring plate, and a plurality of anti-collision blocks are uniformly arranged on the bottom of the ring plate in the circumferential direction thereof, so as to prevent the outer side of the ring plate from colliding with and damaging the communication pipe and limit the radial movement of the ring plate along the communication pipe.

[0012] Optionally, the periphery of the top plate is formed with a clamping seat protruding outward, so as to clamp the acid liquid distribution mechanism at the top outlet of the communication pipe.

[0013] Optionally, a connecting pipe is arranged at the center of the top plate to convey the acid liquid.

[0014] Optionally, the stirrer comprises a driver, a stirring shaft and a stirring piece, the driver is arranged at the top of the reactor, one end of the stirring shaft is connected to the output end of the driver, and the other end of the stirring shaft is connected to the stirring piece and extends into the reactor.

[0015] Optionally, the stirring piece comprises a plurality of groups of stirring paddles arranged in the axial direction of the stirring shaft.

[0016] According to the above technical scheme, the acid liquid in the acid liquid container of the sol acidification device is uniformly flowed into the reactor by the plurality of acid liquid drop heads under the driving of gravity, and the stirring mechanism is started to stir the solution in the reactor, so that the acid liquid added into the solution can be uniformly distributed in the reactor. Therefore, the phenomenon that the acid liquid in the solution in the reactor is not uniformly distributed to cause the acid liquid and the reactants such as the powder to be not uniformly mixed is avoided, and the quality of the sol slurry produced by the sol device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of a sol acidification device of the utility model;

[0018] Figure 2 is a structural schematic view of a reactor of the utility model;

[0019] Figure 3 is a top view of an acid liquid distribution mechanism of the utility model;

[0020] Figure 4 is a side view of the acid liquid distribution mechanism of the utility model;

[0021] Figure 5 is a structural schematic view of an acid liquid container of the utility model;Figure 4 Enlarged view of the middle local area I;

[0022] Figure 6 The acid liquid drop head structure schematic diagram of the utility model.

[0023] Explanation of reference signs

[0024] 1, reaction kettle;101, discharge pipe;102, discharge valve;103, communication pipe;2, acid liquid distribution mechanism;201, acid liquid container;202, top plate;203, bottom plate;204, ring plate;205, acid liquid drop head;206, needle tube drop head;207, acid liquid drop tube;208, inner cavity;209, anti-collision block;210, countersunk screw;211, connecting pipe;212, through hole;213, clamping seat;3, acid liquid conveying mechanism;301, acid liquid tank;302, peristaltic pump;303, acid liquid pipeline;304, first control valve;305, second control valve;4, temperature measuring part;5, liquid level measuring part;6, jacket heating mechanism;601, medium input pipe;602, first medium valve;603, medium output pipe;604, second medium valve;605, medium cavity;7, stirrer;701, driver;702, stirring shaft;703, stirring paddle;704, paddle. DETAILED DESCRIPTION

[0025] The embodiments of the present application will be further described in conjunction with the drawings and examples. The detailed description of the following examples and drawings are used to exemplarily illustrate the principles of the present application, but cannot be used to limit the scope of the present application, and the present application can be realized in many different forms, not limited to the specific examples disclosed herein, but includes all technical solutions falling within the scope of claims.

[0026] The present application provides these examples in order to make the present application thorough and complete, and fully express the scope of the present application to those skilled in the art. It should be noted that: unless otherwise specified, the relative arrangement of components and steps, the composition of materials, numerical expressions and values described in these examples should be interpreted as merely exemplary, and not as a limitation.

[0027] It should be noted that, in the description of the present application, unless otherwise specified, the meaning of "a plurality of" is greater than or equal to two;The terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] In addition, the "first", "second" and similar words used in the utility model do not represent any order, quantity or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range. "Include" or "contain" and similar words mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements.

[0029] It should be further noted that in the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection, it can be directly connected, or indirectly connected through an intermediate medium. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0030] All the terms used in the utility model have the same meaning as understood by ordinary skilled persons in the field to which the utility model belongs, unless otherwise defined. It should also be understood that the terms defined in, such as general dictionaries, should be interpreted to have the same meaning as their meaning in the context of the relevant technology, and should not be interpreted in an idealized or extremely formalized sense, unless otherwise defined here.

[0031] The technology, method and equipment known to ordinary skilled persons in the relevant field can not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as part of the specification.

[0032] Reference Figure 1 As shown, the sol acidification device comprises:

[0033] The reaction kettle 1 comprises:

[0034] The acid liquid distribution mechanism 2 is arranged at the top of the reaction kettle 1, and the acid liquid distribution mechanism 2 comprises an acid liquid container 201 and a plurality of acid liquid drop heads 205 distributed in the horizontal direction and communicated with the bottom of the acid liquid container 201;

[0035] The acid liquid conveying mechanism 3 is used for conveying acid liquid into the acid liquid container 201, and the acid liquid in the acid liquid container 201 flows into the reaction kettle 1 under the driving of gravity from the plurality of acid liquid drop heads 205;

[0036] The stirring mechanism is used for stirring the solution in the reaction kettle 1.

[0037] Reference Figure 3 And Figure 4As shown, the plurality of acid liquid drop heads 205 are distributed in the horizontal direction at intervals (in an array) on the bottom of the acid liquid container 201. The acid liquid in the acid liquid container 201 is shunted by the plurality of acid liquid drop heads 205 under the action of gravity, and the shunted acid liquid can flow into the reaction kettle 1 in the horizontal direction uniformly, avoiding the acid liquid from being concentrated in the solution below the acid liquid inlet of the reaction kettle 1, and preliminarily dispersing the acid liquid in the horizontal direction in the reaction kettle 1.

[0038] In addition, the caliber of the outlet of each acid liquid drop head 205 is small, so that the acid liquid is dropped into the solution in the reaction kettle 1 in the form of discontinuous small droplets. It can be seen that, on the one hand, the acid liquid is dispersed into the plurality of acid liquid drop heads 205 in the horizontal direction, and on the other hand, each acid liquid drop head 205 makes the acid liquid fall discontinuously in the vertical direction, so that the acid liquid is uniformly distributed in the three-dimensional space, and therefore, the droplets are more easily dispersed uniformly in the reaction kettle 1 in the stirring process, and can form a turbulent flow in the stirring process to accelerate the mixing rate of the acid liquid and the solution in the reaction kettle 1.

[0039] In addition, the bottom of the acid liquid distributor can be provided with 100-300 acid liquid drop heads 205 to improve the rate of the acid liquid dropped into the reaction kettle 1.

[0040] Therefore, the acid liquid in the acid liquid container 201 of the sol acidification device can flow into the reaction kettle 1 uniformly under the driving of gravity by the plurality of acid liquid drop heads 205, and at the same time, the stirring mechanism can be started to stir the solution in the reaction kettle 1, so that the acid liquid dropped into the solution is uniformly distributed in the reaction kettle 1. Therefore, the phenomenon that the acid liquid and the reactants such as powders cannot be uniformly mixed due to the uneven distribution of the acid liquid in the solution in the reaction kettle 1 is avoided, and the quality of the sol device for producing sol slurry is improved.

[0041] In some embodiments, the reaction kettle 1 can include a porcelain reaction kettle 1, and the bottom of the porcelain reaction kettle 1 is provided with a discharge pipe 101 for discharging the reacted solution out of the porcelain reaction kettle 1, and the discharge pipe 101 is provided with a discharge valve 102 for controlling the opening and closing of the discharge pipe 101.

[0042] The acid liquid drop head 205 in the utility model can have any appropriate structure, and it can be known from the embodiments of Figure 6 The acid liquid drop head 205 can include a needle tube drop head 206 and an acid liquid drop tube 207, one end of the acid liquid drop tube 207 penetrates through the bottom of the acid liquid container 201 and communicates with the inner cavity 208 of the acid liquid container 201, and the other end is connected with the needle tube drop head 206.

[0043] The inner diameter of the needle tube drop head 206 can include 0.3-0.7mm, the outer diameter can include 0.5-2.0mm, and the length of the whole needle tube drop head 206 can include 25-35mm.

[0044] Therefore, the acid dripper 205 in the utility model can drip small droplets into the reactor 1 perpendicular to the horizontal plane, making it easier to stir the acid in the reactor 1 while controlling the direction of dripping the acid, thereby preventing the acid from adhering to the inner wall of the upper part of the reactor 1. When the stirring mechanism drives the liquid in the reactor 1 to rotate, it cannot touch the droplets, resulting in waste of acid and reducing production costs.

[0045] The axial direction of the reactor 1 is perpendicular to the horizontal plane.

[0046] Of course, in some other embodiments, the size of the needle dripper 206 may be changed according to the needs of the production environment, for example, the inner diameter of the needle dripper 206 may be widened to increase the flow rate of the acid solution.

[0047] In some embodiments, the acid dripper 205 is detachably connected to the acid container 201 to facilitate replacement of a damaged acid dripper 205 .

[0048] In some embodiments, a connecting pipe 103 communicating with the inner cavity 208 of the reactor 1 may be provided at the top of the reactor 1 , and the acid liquid container 201 may be connected to the top outlet of the connecting pipe 103 .

[0049] The connecting pipe 103 may include a straight pipe, the axial direction of the straight pipe is in the same direction as the axial direction of the reactor 1 , and the acid in the acid container 201 may flow into the reactor 1 through the straight pipe under the action of gravity.

[0050] There may be a certain distance between the inner wall of the straight tube and the acid dripper 205 on the bottom periphery of the acid container 201 to prevent the acid from adhering to the inner wall of the straight tube during the falling process.

[0051] Additionally, the straight tube material may include enamel.

[0052] In the present invention, the acid container 201 can have any appropriate structure, refer to Figure 4 As can be seen from the embodiment shown, the acid liquid container 201 may include a top plate 202, a ring plate 204 and a bottom plate 203. The two ends of the ring plate 204 may be connected between the top plate 202 and the bottom plate 203 to enclose an inner cavity 208 of the acid liquid container 201. A plurality of through holes 212 for inserting the acid drip heads 205 are arranged at intervals along the horizontal direction of the bottom plate 203.

[0053] Among them, a fine-thread connection can be used between the acid dripper 205 and the through hole 212, so that the connection between the acid dripper 205 and the acid container 201 has better sealing performance; of course, in some other embodiments, other structures can be used to improve the sealing performance of the connection between the two, and this article will not go into details here.

[0054] In some embodiments, reference Figure 6As shown, the periphery of the bottom plate 203 can be fixedly connected to the inner side of the ring plate 204, and the bottom surface of the ring plate 204 can be uniformly provided with six anti-collision blocks 209 along the circumference thereof, for preventing the acid liquid container 201 from colliding with the communication pipe 103 and causing damage therebetween; of course, in other embodiments, other numbers of anti-collision blocks 209 can be provided; or other anti-collision structures, which will not be described in detail herein.

[0055] As shown, the periphery of the bottom plate 203 can be fixedly connected to the inner side of the ring plate 204, and the bottom surface of the ring plate 204 can be uniformly provided with six anti-collision blocks 209 along the circumference thereof, for preventing the acid liquid container 201 from colliding with the communication pipe 103 and causing damage therebetween; of course, in other embodiments, other numbers of anti-collision blocks 209 can be provided; or other anti-collision structures, which will not be described in detail herein. Figure 5

[0056] As shown, the periphery of the bottom plate 203 can be fixedly connected to the inner side of the ring plate 204, and the bottom surface of the ring plate 204 can be uniformly provided with six anti-collision blocks 209 along the circumference thereof, for preventing the acid liquid container 201 from colliding with the communication pipe 103 and causing damage therebetween; of course, in other embodiments, other numbers of anti-collision blocks 209 can be provided; or other anti-collision structures, which will not be described in detail herein.

[0057] As shown, the periphery of the bottom plate 203 can be fixedly connected to the inner side of the ring plate 204, and the bottom surface of the ring plate 204 can be uniformly provided with six anti-collision blocks 209 along the circumference thereof, for preventing the acid liquid container 201 from colliding with the communication pipe 103 and causing damage therebetween; of course, in other embodiments, other numbers of anti-collision blocks 209 can be provided; or other anti-collision structures, which will not be described in detail herein. Figure 4 Figure 5 As shown, the periphery of the bottom plate 203 can be fixedly connected to the inner side of the ring plate 204, and the bottom surface of the ring plate 204 can be uniformly provided with six anti-collision blocks 209 along the circumference thereof, for preventing the acid liquid container 201 from colliding with the communication pipe 103 and causing damage therebetween; of course, in other embodiments, other numbers of anti-collision blocks 209 can be provided; or other anti-collision structures, which will not be described in detail herein.

[0058] As shown, the periphery of the bottom plate 203 can be fixedly connected to the inner side of the ring plate 204, and the bottom surface of the ring plate 204 can be uniformly provided with six anti-collision blocks 209 along the circumference thereof, for preventing the acid liquid container 201 from colliding with the communication pipe 103 and causing damage therebetween; of course, in other embodiments, other numbers of anti-collision blocks 209 can be provided; or other anti-collision structures, which will not be described in detail herein.

[0059] As shown, the periphery of the bottom plate 203 can be fixedly connected to the inner side of the ring plate 204, and the bottom surface of the ring plate 204 can be uniformly provided with six anti-collision blocks 209 along the circumference thereof, for preventing the acid liquid container 201 from colliding with the communication pipe 103 and causing damage therebetween; of course, in other embodiments, other numbers of anti-collision blocks 209 can be provided; or other anti-collision structures, which will not be described in detail herein.

[0060] As shown, the periphery of the bottom plate 203 can be fixedly connected to the inner side of the ring plate 204, and the bottom surface of the ring plate 204 can be uniformly provided with six anti-collision blocks 209 along the circumference thereof, for preventing the acid liquid container 201 from colliding with the communication pipe 103 and causing damage therebetween; of course, in other embodiments, other numbers of anti-collision blocks 209 can be provided; or other anti-collision structures, which will not be described in detail herein.

[0061] As shown, the periphery of the bottom plate 203 can be fixedly connected to the inner side of the ring plate 204, and the bottom surface of the ring plate 204 can be uniformly provided with six anti-collision blocks 209 along the circumference thereof, for preventing the acid liquid container 201 from colliding with the communication pipe 103 and causing damage therebetween; of course, in other embodiments, other numbers of anti-collision blocks 209 can be provided; or other anti-collision structures, which will not be described in detail herein.

[0062] As shown, the periphery of the bottom plate 203 can be fixedly connected to the inner side of the ring plate 204, and the bottom surface of the ring plate 204 can be uniformly provided with six anti-collision blocks 209 along the circumference thereof, for preventing the acid liquid container 201 from colliding with the communication pipe 103 and causing damage therebetween; of course, in other embodiments, other numbers of anti-collision blocks 209 can be provided; or other anti-collision structures, which will not be described in detail herein.

[0063] As shown, the periphery of the bottom plate 203 can be fixedly connected to the inner side of the ring plate 204, and the bottom surface of the ring plate 204 can be uniformly provided with six anti-collision blocks 209 along the circumference thereof, for preventing the acid liquid container 201 from colliding with the communication pipe 103 and causing damage therebetween; of course, in other embodiments, other numbers of anti-collision blocks 209 can be provided; or other anti-collision structures, which will not be described in detail herein. Figure 2 ​​The embodiment of the application can know that the stirring mechanism can include a driver 701, a stirring shaft 702 and a stirring piece.

[0064] The driver 701 can be arranged at the top of the reaction kettle 1, one end of the stirring shaft 702 can be connected to the power output end of the driver 701, and the other end can be connected to the stirring piece in the reaction kettle 1 to stir the solution in the reaction kettle 1, so that the acid liquid is uniformly distributed along the horizontal direction of the reaction kettle 1.

[0065] In some embodiments, the stirring piece can include two groups of stirring paddles 703 arranged along the axial direction of the stirring shaft 702, and the stirring paddle 703 can include not less than one paddle 704 to enhance the stirring intensity of the stirring mechanism, so that the acid liquid is more uniformly distributed and the stirring time is shortened.

[0066] The acid liquid conveying mechanism 3 in the application can have any appropriate structure, and the embodiment shown in the drawing can include an acid liquid tank 301, an acid liquid conveying pump, an acid liquid pipeline 303 and a control piece. Figure 1

[0067] The one end of the acid liquid pipeline 303 is connected to the low side of the acid liquid tank 301, the other end is connected to the connecting pipe 211 of the acid liquid container 201, the control piece is arranged on the acid liquid pipeline 303 to control the flow of the acid liquid pipeline 303, and the acid liquid conveying pump is used to drive the flow of the acid liquid in the connecting pipe 103.

[0068] The acid liquid in the acid liquid tank 301 flows into the acid liquid conveying pipe under the action of gravity, and flows into the inner cavity 208 of the acid liquid container 201 under the driving of the acid liquid conveying pump.

[0069] The acid liquid pipeline 303 can include an acid-resistant hose.

[0070] In some embodiments, the acid liquid conveying pump can include a peristaltic pump 302, which can be arranged between the acid liquid tank 301 and the reaction kettle 1, and can move the fluid by extruding the acid liquid pipeline 303.

[0071] The peristaltic pump 302 can be controlled by frequency conversion to control the dropping speed of the acid liquid, more accurately control the amount of the acid liquid, and make the reaction in the reaction kettle 1 more sufficient.

[0072] In some embodiments, the control piece can include two control valves, one of which is used as a standby valve to improve the safety of the device.

[0073] ​One control valve is arranged on the acid liquid pipeline 303 between the acid liquid tank 301 and the peristaltic pump 302, and another control valve is arranged on the acid liquid pipeline 303 between the peristaltic pump 302 and the reaction kettle 1, so as to control the flow of the acid liquid pipeline 303, and the acid liquid flow in the acid liquid pipeline 303 can be adjusted by changing the opening degree of the control valve controlling the on-off of the acid liquid pipeline 303.

[0074] Reference Figure 2 It can be known that the sol acidification device in the utility model can further include a temperature measuring mechanism, a liquid level measuring mechanism and a jacket heating mechanism 6.

[0075] The temperature measuring mechanism and the liquid level measuring mechanism can be used for measuring the temperature and the liquid level of the solution in the reaction kettle 1 respectively, and the jacket heating mechanism 6 is used for heating the reaction kettle 1 to meet the temperature condition required by the reaction.

[0076] The temperature measuring mechanism, the liquid level measuring mechanism and the jacket heating mechanism 6 in the utility model can have any appropriate structure, and reference can be made to the embodiments of the utility model to know that: Figure 2

[0077] The temperature measuring mechanism can include a temperature display and a measuring rod, the temperature display can be arranged at the top of the reaction kettle 1, the temperature measuring rod can be electrically connected with the temperature display, and the temperature measuring rod can extend into the reaction kettle 1 along the axial direction of the reaction kettle 1, so as to avoid the influence of thermal stratification on the measurement accuracy;

[0078] The liquid level measuring mechanism can include an ultrasonic liquid level meter arranged at the top of the reaction kettle 1.

[0079] The jacket heating mechanism 6 can include a medium cavity 605, medium is introduced into the medium cavity 605, and the reaction kettle 1 is heated or cooled by the temperature of the medium.

[0080] In some embodiments, the medium cavity 605 can extend from the bottom of the reaction kettle 1 to the upper part of the reaction kettle 1 along the outer wall of the reaction kettle 1, so as to increase the contact area of the medium in the medium cavity 605 and the outer wall of the reaction kettle 1 as much as possible and improve the heating efficiency of the medium to the reaction kettle 1. Of course, in some other embodiments, other structures capable of heating or refrigerating can be arranged on the outer wall of the reaction kettle 1.

[0081] In some embodiments, the outer wall of the medium cavity 605 can be made of heat insulation material, so as to reduce the heat exchange amount between the medium and the outside.

[0082] In some embodiments, the side surface of the medium cavity 605 can be respectively provided with a medium input pipe 601 and a medium output pipe 603, for inputting or discharging the medium into or out of the medium cavity 605.

[0083] ​The first medium valve 602 and the second medium valve 604 are correspondingly arranged on the two pipelines, and are respectively used for controlling on-off states of the corresponding pipelines.

[0084] The preferred embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to this. Within the technical concept range of the utility model, the technical scheme of the utility model can be simply modified in various ways, and in order to avoid unnecessary repetition, the utility model will not be described again for various possible combination ways. But these simple modifications and combinations should also be regarded as the disclosed contents of the utility model, and all belong to the protection range of the utility model.

Claims

1. A sol acidification device, characterized in that: include: Reactor (1); an acid liquid distribution mechanism (2), the acid liquid distribution mechanism (2) being arranged on the top of the reaction kettle (1), the acid liquid distribution mechanism (2) comprising an acid liquid container (201) and a plurality of acid liquid drippers (205) connected to the bottom of the acid liquid container (201) and distributed at intervals in a horizontal direction; an acid liquid conveying mechanism (3), the acid liquid conveying mechanism being used to convey the acid liquid into the acid liquid container (201), wherein the acid liquid in the acid liquid container (201) drips into the reaction kettle (1) from the plurality of acid liquid drippers (205) under gravity driving; A stirring mechanism is used to stir the solution in the reaction kettle (1).

2. The sol acidification device according to claim 1, characterized in that: The acid dripper (205) comprises a needle dripper (206) and an acid dropper (207), one end of the acid dropper (207) passes through the bottom of the acid container (201) and is in communication with the interior of the acid container (201), and the other end is connected to the needle dripper (206).

3. The sol acidification device according to claim 1, characterized in that: The acid liquid container (201) and the acid liquid dripping head (205) are detachably connected.

4. The sol acidification device according to claim 1, characterized in that: A connecting pipe (103) is provided on the top of the reactor (1), the connecting pipe (103) is connected to the interior of the reactor (1), and the acid liquid distribution mechanism (2) is connected to the top outlet of the connecting pipe (103).

5. The sol acidification device according to claim 4, characterized in that: The acid liquid container (201) comprises a top plate (202), a ring plate (204) and a bottom plate (203), wherein both ends of the ring plate (204) are connected between the top plate (202) and the bottom plate (203), and a plurality of through holes (212) are arranged at intervals along the horizontal direction of the bottom plate (203), and the through holes (212) are for inserting the acid liquid dripping heads (205).

6. The sol acidification device according to claim 5, characterized in that: The periphery of the bottom plate (203) is fixedly connected to the inner side surface of the ring plate (204), and a plurality of anti-collision blocks (209) are evenly arranged on the bottom of the ring plate (204) along its circumference, so as to prevent the ring plate (204) from damaging the reactor (1) and limit the radial movement of the ring plate (204) along the connecting pipe (103).

7. The sol acidification device according to claim 6, characterized in that: The periphery of the top plate (202) can protrude outwards and form a clamping seat (213) with the outer wall surface of the ring plate (204) to clamp the acid liquid distribution mechanism (2) on the top of the connecting pipe (103).

8. The sol acidification device according to claim 5, characterized in that: A connecting pipe (211) is provided at the center of the top plate (202), the connecting pipe (211) being in communication with the inner cavity (208) of the acid liquid container (201), and the acid liquid conveying mechanism (3) conveys the acid liquid into the inner cavity (208) through the connecting pipe (211).

9. The sol acidification device according to claim 1, characterized in that: The stirrer comprises a driver (701), a stirring shaft (702) and a stirring member, wherein the driver (701) is arranged on the top of the reactor (1), one end of the stirring shaft (702) is connected to the output end of the driver (701), and the other end extends into the reactor (1) and is connected to the stirring member.

10. The sol acidification device according to claim 9, characterized in that: The stirring member includes a plurality of stirring paddles (703) arranged at intervals along the axial direction of the stirring shaft (702).

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