Solid catalyst closed adding device in chemical production

Abstract

The utility model discloses a solid catalyst closed adding device in chemical production, and relates to the technical field of chemical equipment, the solid catalyst closed adding device comprises an equipment box, a vibration mechanism is arranged in the equipment box, the vibration mechanism comprises a first rotating shaft, and the first rotating shaft is provided with a second rotating shaft through a first synchronous belt and a first synchronous wheel in a transmission mode; the second rotating shaft is provided with a material shaking mechanism connected with the center of the bottom of the equipment box through a second synchronous belt and a second synchronous wheel, one end of the bottom of the equipment box communicates with a material conveying pipe, and a material guiding mechanism is arranged at the bottom end of the material conveying pipe. By arranging the vibrating mechanism and the shaking mechanism, the shaking mechanism can be driven to work by operation of the vibrating mechanism, solid catalyst powder can be fully dispersed, meanwhile, reaction substances in the reaction kettle are prevented from being in direct contact with the external environment, and the reaction safety risk is controlled.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of chemical equipment, in particular to a solid catalyst closed feeding device in chemical production. BACKGROUND

[0002] Solid catalyst, in chemical reaction, can change the chemical reaction rate of reactants (increase or decrease) without changing the chemical equilibrium, and the mass and chemical properties of the solid catalyst itself do not change before and after the chemical reaction. The solid catalyst is a solid substance called solid catalyst, which is a direction of modern catalytic technology development. The most representative of which is the industrialization application of solid acid and solid base. In the process of chemical production, it is often necessary to add a feeding device to add solid catalyst powder to the reaction kettle.

[0003] The existing feeding device is often directly put into the reaction kettle when used, which can easily cause the local catalyst concentration in the reaction kettle to be too high, resulting in uneven chemical reaction inside the reaction kettle. Secondly, when adding external solid catalyst to the reaction kettle, the catalyst feeding port of the reaction kettle generally needs to be directly opened, which can cause the reaction material inside the reaction kettle to be directly connected with the external environment, which can cause air to enter the system and pollute the chemical reaction process. At the same time, the safety risk is uncontrollable. In view of the above problems, the present application provides a solid catalyst closed feeding device in chemical production to solve the above problems. SUMMARY

[0004] In order to solve the problem that the existing feeding device is often directly put into the reaction kettle when used, which can easily cause the local catalyst concentration in the reaction kettle to be too high, resulting in uneven chemical reaction inside the reaction kettle. Secondly, when adding external solid catalyst to the reaction kettle, the catalyst feeding port of the reaction kettle generally needs to be directly opened, which can cause the reaction material inside the reaction kettle to be directly connected with the external environment, which can cause air to enter the system and pollute the chemical reaction process. The purpose of the present application is to provide a solid catalyst closed feeding device in chemical production.

[0005] To solve the above technical problems, the application adopts the following technical scheme: a solid catalyst closed feeding device in chemical production, comprising a device box, a vibration mechanism for preliminary dispersion of solid catalyst powder is arranged inside the device box, the vibration mechanism comprises a first rotating shaft, the first rotating shaft is provided with a second rotating shaft through a first synchronous belt and a first synchronous wheel transmission, the second rotating shaft is provided with a shaking mechanism for secondary dispersion of solid catalyst powder through a second synchronous belt and a second synchronous wheel, the shaking mechanism is further provided with a motor fixedly matched with one side of the device box and a first fixed block symmetrically fixedly arranged at the bottom of the inner wall of the device box, the motor output end is fixedly matched with one end of the first rotating shaft through the device box, the other end of the first rotating shaft and the second rotating shaft is respectively fixedly provided with two first rotating discs through two first fixed blocks, a first movable block is hingedly arranged on one side of the first rotating disc, a swing bar is hingedly arranged at one end of the first movable block, a third rotating shaft is fixedly arranged at one end of the swing bar and hingedly matched with one end of one side of the first fixed block, a second fixed block is fixedly arranged at the center of one side of the first fixed block, a sliding hole is formed in the top of the second fixed block, a sliding rod is slidably arranged in the sliding hole, the bottom end of the sliding rod is hingedly matched with the center of the swing bar through two second movable blocks, a third fixed block is fixedly arranged at the top of the sliding rod, a vibration groove is fixedly arranged at the top of the third fixed block, a discharge pipe is communicated at the bottom of the vibration groove and arranged directly above a feeding pipe, the shaking mechanism comprises a fixed rod fixedly matched with the surface of the feeding pipe, a U-shaped fixing frame is fixedly arranged at one end of the fixed rod, a first connecting shaft is slidably and rotatably arranged in the inner side of the U-shaped fixing frame, a clamping sleeve is fixedly arranged on the surface of the first connecting shaft through a first bolt, a mounting block is fixedly arranged at one side of the clamping sleeve, a mounting groove is formed at one side of the mounting block, an annular block is fixedly arranged in the mounting groove, a circular block is movably arranged in the annular block, a shaking groove is fixedly arranged at one end of the first connecting shaft through the feeding pipe, a fourth rotating shaft is rotatably arranged at one side of the U-shaped fixing frame, a first mounting plate is fixedly matched with the center of the bottom of the device box and rotatably arranged on the surface of the fourth rotating shaft, the fourth rotating shaft is drivingly matched with the second rotating shaft through a second synchronous belt and a second synchronous wheel, a second rotating disc is fixedly arranged at one end of the fourth rotating shaft through the U-shaped fixing frame, a fixed shaft is fixedly matched with one side of the circular block and fixedly arranged at one side of the second rotating disc, a feeding pipe for conveying solid catalyst powder is communicated at one end of the bottom of the device box and connected with the shaking mechanism, and a guide mechanism for feeding solid catalyst powder into the reaction kettle is arranged at the bottom end of the feeding pipe.

[0006] Preferably, the material guiding mechanism comprises a closed box, fourth fixed blocks are symmetrically and fixedly arranged at the top of the inner wall of the closed box, a gas cylinder is fixedly installed at the bottom of the fourth fixed block, moving strips are fixedly arranged at the output end of the gas cylinder, a fixed ring is fixedly arranged between the two moving strips, a first material guiding pipe is fixedly arranged in the fixed ring, a bellows is communicatively arranged at the top of the first material guiding pipe, a second material guiding pipe is communicatively arranged at the top of the bellows and cooperates with the bottom of the material feeding pipe, fifth fixed blocks are fixedly arranged on the surface of the fixed ring, a rack is fixedly arranged at one end of the fifth fixed block, a sixth fixed block is fixedly arranged at one end of the inner wall of the closed box, a second connecting shaft is rotatably arranged at one side of the sixth fixed block, a first spur gear is sleeved on the surface of the second connecting shaft and meshes with one side of the rack, a third connecting shaft is driven by two bevel gears which mesh with each other, a second spur gear is sleeved on one end of the third connecting shaft and penetrates through the closed box, a fourth connecting shaft is rotatably arranged at one end of the closed box, a third spur gear is sleeved on the surface of the fourth connecting shaft and meshes with the outer wall of the second spur gear, a second mounting plate is fixedly arranged at the top of the closed box, a fifth connecting shaft is rotatably arranged at one side of the second mounting plate, the fifth connecting shaft is in driving cooperation with the fourth connecting shaft through a third synchronous wheel and a third synchronous belt, a stop block which is in contact with the inner wall of the material feeding pipe is fixedly arranged at one end of the fifth connecting shaft and penetrates through the material feeding pipe, groove-shaped plates are fixedly arranged at the both sides of the center of the inner wall of the closed box, sliding blocks which are fixedly cooperated with one end of the moving strips are slidably arranged in the groove-shaped plates, a discharging pipe is communicatively arranged at the bottom of the closed box, and a connecting ring is fixedly arranged at the bottom end of the discharging pipe through a second bolt.

[0007] Compared with the prior art, the present application has the following advantages:

[0008] 1、The vibration mechanism and the shaking mechanism are arranged, so that the vibration mechanism can drive the shaking mechanism to work when the vibration mechanism operates, the solid catalyst powder can be fully dispersed, the solid catalyst powder can be prevented from entering the reaction kettle in a heap or a cluster, the local catalyst concentration in the reaction kettle can be prevented from being too high, and the chemical reaction in the reaction kettle can be prevented from being uneven; the material guiding mechanism is arranged, so that when the device adds the catalyst to the reaction kettle, the adding opening of the reaction kettle is always in a closed environment, the possibility that the reaction substances in the reaction kettle directly communicate with the external environment is eliminated, and the chemical reaction process is prevented from being polluted;

[0009] 2、The first rotating shaft is used for driving the sliding rod and the third fixed block to move back and forth along the vertical direction, and then drives the vibration tank to move back and forth, so as to drive the solid catalyst powder on the vibration tank to vibrate; the second rotating shaft is used for driving the fourth rotating shaft to rotate, and then drives the solid catalyst powder on the vibration tank to vibrate continuously, so as to further disperse the solid catalyst powder;

[0010] 3、The application utilizes the cylinder to make it elongate, drive the moving strip to move downward, and then drive the moving strip and the first material guide pipe to move downward, so that the bottom end of the first material guide pipe contacts with the port of the catalyst adding port of the reaction kettle, so that the whole catalyst adding process is always in a closed state. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0012] Figure 1 The first perspective view of the whole structure of the present application.

[0013] Figure 2 The second perspective view of the whole structure of the present application.

[0014] Figure 3 The cross-sectional view of the present application.

[0015] Figure 4 The vibration mechanism structure diagram of the present application.

[0016] Figure 5 The material shaking mechanism structure diagram of the present application.

[0017] Figure 6 The connection structure diagram of the mounting block, ring block and circular block structure of the present application.

[0018] Figure 7 The material guide mechanism structure diagram of the present application.

[0019] Figure 8 The internal structure diagram of the closed box of the present application.

[0020] In the diagram: 1. Equipment box; 2. Vibration mechanism; 201. First rotating shaft; 202. Second rotating shaft; 203. Motor; 204. First fixed block; 205. First turntable; 206. First movable block; 207. Swing bar; 208. Third rotating shaft; 209. Second fixed block; 210. Slide rod; 211. Second movable block; 212. Third fixed block; 213. Vibration groove; 214. Feeding pipe; 3. Conveying pipe; 4. Shaking mechanism; 401. Fixed rod; 402. U-shaped fixing frame; 403. First connecting shaft; 404. Clamping sleeve; 405. Mounting block; 406. Annular block; 407. Round block; 408. Shaking groove; 409. Fourth rotating shaft; 410. First mounting plate; 411. Second turntable; 412. Fixed shaft; 5. Material guiding mechanism; 501. Sealed box; 502. Fourth fixed block; 503. Cylinder; 504. Moving bar; 505. Fixed ring; 506. First guide pipe; 507. Corrugated pipe; 508. Second guide pipe; 509. Fifth fixed block; 510. Rack; 511. Sixth fixed block; 512. Second connecting shaft; 513. First spur gear; 514. Bevel gear; 515. Third connecting shaft; 516. Fourth connecting shaft; 517. Second spur gear; 518. Third spur gear; 519. Second mounting plate; 520. Fifth connecting shaft; 521. Stop block; 522. Groove plate; 523. Discharge pipe; 524. Connecting ring. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example: Figures 1-8 As shown, the present invention provides a closed-loop dosing device for solid catalysts in chemical production, including equipment box 1:

[0023] The device box 1 is internally provided with a vibration mechanism 2 for preliminary dispersion of solid catalyst powder, the vibration mechanism 2 comprising a first rotating shaft 201, the first rotating shaft 201 being provided with a second rotating shaft 202 through first synchronous belt and first synchronous wheel transmission, the vibration mechanism 2 further comprising a motor 203 fixedly matched with one side of the device box 1 and a first fixed block 204 symmetrically fixedly arranged at the bottom of the inner wall of the device box 1, the motor 203 providing power for normal work of the vibration mechanism 2 and the material shaking mechanism 4, the output end of the motor 203 penetrating through the device box 1 and being fixedly matched with one end of the first rotating shaft 201, the other ends of the first rotating shaft 201 and the second rotating shaft 202 being respectively fixedly provided with two first rotating discs 205 penetrating through the two first fixed blocks 204, bearings being arranged at the connection positions of the first rotating shaft 201, the second rotating shaft 202 and the first fixed block 204, so that rotation of the first rotating shaft 201 can drive the first rotating disc 205 to rotate, one side of the first rotating disc 205 being hingedly provided with a first movable block 206, one end of the first movable block 206 being hingedly provided with a swing bar 207, one end of the swing bar 207 being fixedly provided with a third rotating shaft 208 hingedly matched with one end of one side of the first fixed block 204, the swing bar 207 swinging around the third rotating shaft 208, a second fixed block 209 being fixedly arranged at the center of one side of the first fixed block 204, a slide hole being formed at the top of the second fixed block 209, a slide rod 210 being slidably arranged in the slide hole, the slide rod 210 reciprocatingly moving up and down along the slide hole to achieve vibration effect, the bottom end of the slide rod 210 being hingedly matched with the center of the swing bar 207 through two second movable blocks 211, the top end of the slide rod 210 being fixedly provided with a third fixed block 212, the top of the third fixed block 212 being fixedly provided with a vibration groove 213, the vibration groove 213 being used for receiving solid catalyst powder and driving the solid catalyst powder to preliminarily vibrate to achieve the purpose of preliminarily dispersing the solid catalyst powder, the bottom of the vibration groove 213 being communicatively provided with a discharging pipe 214 arranged directly above the material conveying pipe 3, the solid catalyst powder preliminarily vibrated falling along the discharging pipe 214 into the material conveying pipe 3 and falling on the material shaking groove 408, so that rotation of the first rotating disc 205 can drive the vibration groove 213 to reciprocate along the vertical direction, thereby driving the solid catalyst powder to preliminarily vibrate;

[0024] The second rotating shaft 202 is provided with a material shaking mechanism 4 for secondary dispersion of solid catalyst powder, connected to the bottom center of the equipment box 1 through a second synchronous belt and a second synchronous wheel. The material shaking mechanism 4 comprises a fixed rod 401 fixedly matched with the surface of the material conveying pipe 3. One end of the fixed rod 401 is fixedly provided with a U-shaped fixing frame 402. The inner side of the U-shaped fixing frame 402 is slidingly and rotatably provided with a first connecting shaft 403. The surface of the first connecting shaft 403 is fixedly provided with a clamping sleeve 404 through a first bolt. By disassembling and tightening and loosening the first bolt, the first connecting shaft 403 and other structures can be conveniently installed and disassembled. One side of the clamping sleeve 404 is fixedly provided with a mounting block 405. One side of the mounting block 405 is provided with a mounting groove. The mounting groove is fixedly provided with an annular block 406. The inner part of the annular block 406 is movably provided with a circular block 407. The circular block 407 can move arbitrarily in the inner wall of the annular block 406. One end of the first connecting shaft 403 is fixedly provided with a material shaking groove 408 through the material conveying pipe 3. The shaking of the material shaking groove 408 can drive the solid catalyst powder falling into the material shaking groove 408 to shake and vibrate, thereby performing secondary vibration dispersion on the solid catalyst powder. The movement of the circular block 407 can drive the material shaking groove 408 to shake around the first connecting shaft 403 as the axis. One side of the U-shaped fixing frame 402 is rotatably provided with a fourth rotating shaft 409. The surface of the fourth rotating shaft 409 is rotatably provided with a first mounting plate 410 fixedly matched with the bottom center of the equipment box 1. The second rotating shaft 202 is drivingly matched with the fourth rotating shaft 409 through a second synchronous belt and a second synchronous wheel. Through the transmission of the second synchronous belt and the second synchronous wheel, the rotation of the second rotating shaft 202 can drive the fourth rotating shaft 409 to rotate. One end of the fourth rotating shaft 409 is fixedly provided with a second rotating disc 411 through the U-shaped fixing frame 402. One side of the second rotating disc 411 is fixedly provided with a fixed shaft 412 fixedly matched with one side of the circular block 407, so that the rotation of the fourth rotating shaft 409 can drive the circular block 407 to move along the set track.

[0025] The bottom of the equipment box 1 is connected with a feeding pipe 3 for conveying solid catalyst powder, which is connected with the shaking mechanism 4. The bottom end of the feeding pipe 3 is provided with a guide mechanism 5 for feeding the solid catalyst powder into the reaction kettle. The guide mechanism 5 comprises a sealed box 501. The inner wall of the sealed box 501 is symmetrically provided with fourth fixed blocks 502 at the top. The fourth fixed blocks 502 are fixedly installed with air cylinders 503 at the bottom. The output end of the air cylinder 503 is fixedly provided with moving strips 504. The moving strips 504 are fixedly provided with a fixed ring 505 between them. The fixed ring 505 is fixedly provided with a first guide pipe 506 inside. The top end of the first guide pipe 506 is connected with a bellows 507. The bellows 507 can be elongated or shortened within a certain range. It belongs to the prior art. The top end of the bellows 507 is connected with a second guide pipe 508, which is connected with the bottom end of the feeding pipe 3. The solid catalyst powder falls into the bellows 507 through the second guide pipe 508 and then falls into the reaction kettle through the first guide pipe 506. The elongation or shortening of the air cylinder 503 can drive the first guide pipe 506 to move. The surface of the fixed ring 505 is fixedly provided with fifth fixed blocks 509. One end of the fifth fixed blocks 509 is fixedly provided with a rack 510. One end of the inner wall of the sealed box 501 is fixedly provided with a sixth fixed block 511. One side of the sixth fixed block 511 is rotatably provided with a second connecting shaft 512. The surface of the second connecting shaft 512 is sleeved with a first spur gear 513, which is engaged with one side of the rack 510. The second connecting shaft 512 is driven by two bevel gears 514, which are engaged with each other, to be provided with a third connecting shaft 515. The bevel gears 514 can change the rotating direction of the third connecting shaft 515. One end of the third connecting shaft 515 is sleeved with a second spur gear 517 through the sealed box 501, so that the movement of the rack 510 can drive the second spur gear 517 to rotate. One end of the sealed box 501 is rotatably provided with a fourth connecting shaft 516. The surface of the fourth connecting shaft 516 is sleeved with a third spur gear 518, which is engaged with the outer wall of the second spur gear 517. The top of the sealed box 501 is fixedly provided with a second mounting plate 519. One side of the second mounting plate 519 is rotatably provided with a fifth connecting shaft 520. The fifth connecting shaft 520 is driven and cooperated with the fourth connecting shaft 516 through a third synchronous wheel and a third synchronous belt. One end of the fifth connecting shaft 520 is fixedly provided with a stop block 521, which is in contact with the inner wall of the feeding pipe 3, through the feeding pipe 3. The stop block 521 can open and close the feeding pipe 3 and control whether the solid catalyst powder can pass through the feeding pipe 3. The rotation of the second spur gear 517 can drive the stop block 521 to rotate. The inner wall of the sealed box 501 is fixedly provided with groove-shaped plates 522 symmetrically at the center. The groove-shaped plates 522 are slidably provided with sliding blocks, which are fixedly cooperated with one end of the moving strips 504. The moving strips 504 can drive the sliding blocks to move along the inner wall of the groove-shaped plates 522, so that the stability of the moving strips 504 is better when they move. The bottom of the sealed box 501 is connected with a discharge pipe 523. The bottom end of the discharge pipe 523 is fixedly provided with a connecting ring 524 through a second bolt.The discharge pipe 523 can be fixed at the catalyst adding opening of the reactor by the second bolt and the connecting ring 524, so as to ensure the sealing of the device.

[0026] Working principle: connect the solid catalyst powder input end of the device box 1 with the pipe chain conveyor and catalyst receiving tank in the external environment, transport the solid catalyst powder in the catalyst receiving tank to the solid catalyst powder input end of the device box 1 by the pipe chain conveyor, and fall into the device box 1 and the vibration groove 213, and the transport environment of the pipe chain conveyor is a closed environment, and the above pipe chain conveyor and catalyst receiving tank (tank body for temporarily storing solid catalyst powder) are prior art, which will not be described here;

[0027] When installing the device, the discharge pipe 523 is sleeved outside the catalyst adding opening of the reactor (the catalyst of the reactor is generally a pipeline, which is prior art and will not be described here), the inner wall of the discharge pipe 523 is tightly attached to the outer wall of the catalyst adding opening of the reactor, and the discharge pipe 523 is fixed on the catalyst adding opening of the reactor by the connecting ring 524, when it is needed to add solid catalyst powder into the reactor, the catalyst adding opening of the reactor is opened by the control center, at this time, the air cylinder 503 is started to be elongated, the moving strip 504 is driven to move downward, and the moving strip 504 and the first guide pipe 506 are driven to move downward, the bellows 507 is elongated, the bottom end of the first guide pipe 506 is in contact with the port of the catalyst adding opening of the reactor, and the whole catalyst adding process is in a closed state;

[0028] When the first guide pipe 506 moves downward, the rack 510 moves downward, the first spur gear 513 rotates along the clockwise direction around the second connecting shaft 512, the second spur gear 517 rotates a half circle around the third connecting shaft 515 through the transmission action of the two bevel gears 514, the third spur gear 518 rotates a half circle around the fourth connecting shaft 516, the fifth connecting shaft 520 rotates through the transmission action of the third synchronous wheel and the third synchronous belt, the stop block 521 rotates a half circle around the fifth connecting shaft 520, so that the stop block 521 no longer blocks the falling of the solid catalyst powder in the discharge pipe 3;

[0029] When the solid catalyst powder falls on the vibration groove 213, the motor 203 is started to rotate the first rotating shaft 201 rapidly, and the second rotating shaft 202 is rotated via the transmission of the first synchronous belt and the first synchronous wheel, and the two first rotating discs 205 are rotated with the first rotating shaft 201 and the second rotating shaft 202 as the axis, and the first movable block 206 is moved along the set track, and the swing strip 207 is reciprocated with the third rotating shaft 208 as the axis, and the second movable block 211 is moved along the set track, and the slide rod 210 and the third fixed block 212 are reciprocated along the vertical direction, and the vibration groove 213 is reciprocated rapidly along the vertical direction, so as to continuously vibrate and disperse the solid catalyst powder on the vibration groove 213, and avoid the solid catalyst powder from gathering together, and the solid catalyst powder continuously moves downward along the inclined vibration groove 213, and falls into the feeding pipe 3 and the vibration groove 213.

[0030] When the second rotating shaft 202 rotates, the fourth rotating shaft 409 is rotated via the transmission of the second synchronous belt and the second synchronous wheel, and the second rotating disc 411 and the fixed shaft 412 are rotated with the fourth rotating shaft 409 as the axis, and the circular block 407 is moved along the set track inside the annular block 406, and the first connecting shaft 403 is moved left and right along the horizontal direction while swinging, and the shaking groove 408 is moved left and right along the horizontal direction while reciprocating with the first connecting shaft 403 as the axis, and the solid catalyst powder on the vibration groove 213 is continuously vibrated, so as to further disperse the solid catalyst powder, and avoid the solid catalyst from caking due to the failure of primary vibration to disperse part of the solid catalyst, and further improve the dispersion effect of the solid catalyst.

[0031] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application belong to the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A closed-loop dosing device for solid catalysts in chemical production, comprising an equipment box (1), characterized in that: The equipment box (1) is equipped with a vibration mechanism (2) for preliminary dispersion of solid catalyst powder. The vibration mechanism (2) includes a first rotating shaft (201). The first rotating shaft (201) is connected to a second rotating shaft (202) via a first synchronous belt and a first synchronous wheel. The second rotating shaft (202) is connected to a shaking mechanism (4) for secondary dispersion of solid catalyst powder via a second synchronous belt and a second synchronous wheel. One end of the bottom of the equipment box (1) is connected to a conveying pipe (3) for conveying solid catalyst powder, which is connected to the shaking mechanism (4). The bottom end of the conveying pipe (3) is equipped with a guiding mechanism (5) for sealingly feeding solid catalyst powder into the reactor.

2. The closed-loop dosing device for solid catalysts in chemical production as described in claim 1, characterized in that, The vibration mechanism (2) further includes a motor (203) fixedly engaged with one side of the equipment box (1) and first fixing blocks (204) symmetrically fixed at both ends of the bottom of the inner wall of the equipment box (1). The output end of the motor (203) passes through the equipment box (1) and is fixedly engaged with one end of the first rotating shaft (201). The other ends of the first rotating shaft (201) and the second rotating shaft (202) are respectively fixedly engaged with two first turntables (205) through the two first fixing blocks (204).

3. The closed-loop dosing device for solid catalysts in chemical production as described in claim 2, characterized in that, A first movable block (206) is hinged to one side of the first turntable (205). A swing bar (207) is hinged to one end of the first movable block (206). A third rotating shaft (208) is fixed to one end of the swing bar (207) and hinged to one end of the first fixed block (204). A second fixed block (209) is fixed to the center of one side of the first fixed block (204). A sliding hole is opened at the top of the second fixed block (209). A sliding rod (210) is slidably provided in the sliding hole. The bottom end of the sliding rod (210) is hinged to the center of the swing bar (207) through two second movable blocks (211). A third fixed block (212) is fixed to the top of the sliding rod (210). A vibration groove (213) is fixed to the top of the third fixed block (212). A discharge pipe (214) located directly above the conveying pipe (3) is connected to the bottom of the vibration groove (213).

4. The closed-loop dosing device for solid catalysts in chemical production as described in claim 1, characterized in that, The shaking mechanism (4) includes a fixed rod (401) that is fixedly engaged with the surface of the conveying pipe (3). A U-shaped fixing frame (402) is fixedly provided at one end of the fixed rod (401). A first connecting shaft (403) is provided slidingly and rotatably on the inner side of the U-shaped fixing frame (402). A locking sleeve (404) is fixedly provided on the surface of the first connecting shaft (403) by a first bolt. An installation block (405) is fixedly provided on one side of the locking sleeve (404). An installation groove is provided on one side of the installation block (405). An annular block (406) is fixedly provided in the installation groove. A circular block (407) is movably provided inside the annular block (406). A shaking groove (408) is fixedly provided at one end of the first connecting shaft (403) through the conveying pipe (3).

5. A closed-loop dosing device for solid catalysts in chemical production as described in claim 4, characterized in that, A fourth rotating shaft (409) is rotatably provided on one side of the U-shaped fixing frame (402). A first mounting plate (410) is rotatably provided on the surface of the fourth rotating shaft (409) and fixedly engaged with the bottom center of the equipment box (1). The second rotating shaft (202) is driven by the fourth rotating shaft (409) through the second synchronous belt and the second synchronous pulley. A second turntable (411) is fixedly provided on one end of the fourth rotating shaft (409) through the U-shaped fixing frame (402). A fixed shaft (412) is fixedly provided on one side of the second turntable (411) and fixedly engaged with one side of the round block (407).

6. A closed-loop dosing device for solid catalysts in chemical production as described in claim 1, characterized in that, The material guiding mechanism (5) includes a sealed box (501). The top of both sides of the inner wall of the sealed box (501) are symmetrically fixed with fourth fixing blocks (502). The bottom of the fourth fixing block (502) is fixedly installed with a cylinder (503). The output end of the cylinder (503) is fixedly provided with a moving bar (504). A fixing ring (505) is fixed between the two moving bars (504). The inside of the fixing ring (505) is fixedly provided with a first material guiding pipe (506). The top end of the first material guiding pipe (506) is connected to a corrugated pipe (507). The top end of the corrugated pipe (507) is connected to a second material guiding pipe (508) that communicates and cooperates with the bottom end of the conveying pipe (3).

7. A closed-loop dosing device for solid catalysts in chemical production as described in claim 6, characterized in that, A fifth fixing block (509) is fixedly provided on the surface of the fixing ring (505). A rack (510) is fixedly provided at one end of the fifth fixing block (509). A sixth fixing block (511) is fixedly provided at one end of the inner wall of the sealed box (501). A second connecting shaft (512) is rotatably provided on one side of the sixth fixing block (511). A first spur gear (513) that meshes with one side of the rack (510) is fitted on the surface of the second connecting shaft (512). A third connecting shaft (515) is driven by two meshing bevel gears (514) through the second connecting shaft (512). A second spur gear (517) is fitted at one end of the third connecting shaft (515) through the sealed box (501).

8. A closed-loop dosing device for solid catalysts in chemical production as described in claim 7, characterized in that, The sealed box (501) is rotatably provided with a fourth connecting shaft (516) at one end. The surface of the fourth connecting shaft (516) is fitted with a third spur gear (518) that meshes with the outer wall of the second spur gear (517). The top of the sealed box (501) is fixedly provided with a second mounting plate (519). A fifth connecting shaft (520) is rotatably provided on one side of the second mounting plate (519). The fifth connecting shaft (520) is driven by the fourth connecting shaft (516) through a third synchronous pulley and a third synchronous belt. One end of the fifth connecting shaft (520) passes through the conveying pipe (3) and is fixedly provided with a stop block (521) that contacts the inner wall of the conveying pipe (3).

9. A closed-loop dosing device for solid catalysts in chemical production as described in claim 8, characterized in that, The sealed box (501) has symmetrically fixed grooved plates (522) on both sides of its inner wall, and the grooved plates (522) have a slider that is fixedly engaged with one end of the moving bar (504) inside.

10. A closed-loop dosing device for solid catalysts in chemical production as described in claim 9, characterized in that, The bottom of the sealed box (501) is connected to a discharge pipe (523), and the bottom end of the discharge pipe (523) is fixed with a connecting ring (524) by a second bolt.

Images