Granulator for catalyst production

Abstract

The invention discloses a granulator for catalyst production, and relates to the technical field of catalyst production, the granulator comprises a rotary drum, a baffle ring mounted at one end of the rotary drum and a cleaning mechanism arranged in the rotary drum, the cleaning mechanism comprises a scraping and screening assembly, and the scraping and screening assembly comprises a collecting box and a first scraper fixed on the collecting box; a lower hopper is fixedly arranged at the bottom of the collecting box; through the designed cleaning mechanism, materials attached to and caked on the inner wall of the rotary drum are scraped off in real time through a first scraper, powder and qualified particles directly fall off through mesh holes in an inclined mesh plate and are mixed with materials in a semi-granulation state in the rotary drum, and large blocks slide into the mesh drum along the inclined mesh plate, so that the powder and the qualified particles are uniformly mixed. The materials are ground to proper particle sizes through the grinding strips, fall down and are mixed with the materials which are granulated to be in a semi-granulation state below, the stirring rods and the cross rods are always attached to the inner wall of the rotary drum, the materials at the water spraying position are stirred in the full-circumferential direction when rotating along with the rotary rod, and the bonding force between the materials is destroyed.

Description

Technical Field

[0001] The present invention belongs to the technical field of catalyst production, and specifically relates to a granulator for catalyst production. Background Art

[0002] In the production process of TDCPP (trichloropropyl phosphate), the catalyst can significantly reduce the activation energy of the reaction, thereby accelerating the reaction rate and enabling the reaction to be completed in a shorter time. When the catalyst is produced, it is formed into particles through a drum granulator. The catalyst raw material powder is poured into the inner part of the discharge end on one side of the rotating drum through a feeding machine, and then the spraying head is opened to spray water into it. The sprayed water mist adjusts the humidity of the powder raw material. The rotating drum rotates, and the materials are under the combined action of gravity, friction, and centrifugal force inside the rotating drum to form a rolling bed layer. The particles gradually agglomerate into balls through collision, extrusion, and liquid bridge bonding. The particles rotate with the rotating drum to the discharge end and are discharged.

[0003] In the prior art, the spraying head is located at a specific position on the inner wall of the rotating drum, and water is sprayed at a specific position on the inner wall of the rotating drum. At this position, the water spray volume is likely to be large. When the water spray volume is large, these areas will be overly wet, resulting in an increase in the viscosity of the materials when they come into contact with the inner wall of the rotating drum, and it is easy to adhere to the inner wall and form lumps. This not only easily causes waste of the lumped materials and they cannot become particles, but also makes the granulation effect poor, affects the operation cycle of the granulator, and exacerbates the problem of wear of the rotating drum. Therefore, we propose a granulator for catalyst production. Summary of the Invention

[0004] The purpose of the present invention is to provide a granulator for catalyst production to solve the technical problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A granulator for catalyst production, including a rotating drum, a retaining ring installed at one end of the rotating drum, and a cleaning mechanism arranged inside the rotating drum. The cleaning mechanism includes:

[0006] A scraping and screening component, including a collection box and a first scraper fixed on the collection box. A lower hopper is fixedly arranged at the bottom of the collection box, and an inclined mesh plate is fixedly arranged at the bottom of the lower hopper for screening the materials with lumps that fall.

[0007] An inclined box is fixedly arranged above the inclined mesh plate. One end of the inclined box and the inclined mesh plate is fixedly provided with a mesh cylinder. A rotating rod is rotatably arranged inside the mesh cylinder, and two groups of rolling bars are fixedly arranged on the outer part of the rotating rod for crushing the lumped materials entering the mesh cylinder.

[0008] Preferably, a top plate is fixedly arranged at the top of the mesh cylinder, and a first sealed motor is fixedly arranged at the top of the top plate.

[0009] Preferably, the cleaning mechanism further includes a stirring assembly, including a connecting rod fixed to the bottom of the rotating rod. Fixed rings are fixedly arranged at both ends of the connecting rod, and stirring rods are slidably arranged inside the fixed rings.

[0010] Preferably, a connecting spring is fixedly arranged between the top of the stirring rod and the fixed ring;

[0011] The bottom of the stirring rod is rotatably connected to a cross bar through a mounting rotating shaft, and a compression spring is fixedly arranged between the cross bar and the stirring rod.

[0012] Preferably, the cleaning mechanism includes an upper box and a scraping bar rack rotatably arranged on the upper box. A second sealed motor is fixedly arranged on one side of the upper box, a second hopper is fixedly arranged at the bottom of the upper box, and a crushing member for crushing agglomerated materials is arranged below the second hopper.

[0013] Preferably, the crushing member includes a moving box arranged below the second hopper and a fixed frame located inside the moving box. The fixed frame is fixedly connected to the second hopper. A lower frame is fixedly arranged on the second hopper, and a third sealed motor is fixedly arranged on the lower frame.

[0014] Preferably, an installation wheel is fixedly arranged at the working end of the third sealed motor. A connecting plate is rotatably connected to the installation wheel through a first rotating shaft. An upper return rubber belt is fixedly arranged between the top of the moving box and the second hopper.

[0015] Preferably, a discharging member is arranged below the moving box. The discharging member includes a lower box and a rotating column rotatably arranged on the lower box. Multiple groups of grooves are formed inside the rotating column.

[0016] Preferably, a hollow plate is fixedly arranged at the bottom of the lower frame. A T-shaped friction wheel and a rotating rod are respectively rotatably arranged inside the hollow plate. A transmission belt is sleeved on the outer parts of the T-shaped friction wheel and the rotating rod. A friction ring is fixedly sleeved on the outer part of the rotating column, and a first friction wheel is fixedly arranged at the end of the rotating rod.

[0017] Preferably, a bottom frame is arranged below the rotating cylinder. Multiple groups of roller seats are arranged on the bottom frame. Two groups of support rings and a toothed ring are respectively fixedly sleeved on the outer part of the rotating cylinder. A connecting pipe is arranged inside one end of the rotating cylinder, and a spraying head is fixedly arranged at one end of the connecting pipe.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] (1) Through the designed cleaning mechanism of the present invention, the first scraper is used to scrape off the materials attached and caked on the inner wall of the rotating drum in real time. The powder and qualified particles directly fall through the mesh holes in the inclined mesh plate and are mixed with the materials in the rotating drum in the granulation to semi-granulation state, avoiding material waste. The larger lumps slide down along the inclined mesh plate into the mesh cylinder and are crushed to a suitable particle size by the rolling bars and then fall to be mixed with the materials in the granulation to semi-granulation state below. The stirring rod and the cross bar always fit the inner wall of the rotating drum and circumferentially stir the materials at the water spraying position when rotating with the rotating rod, destroying the adhesion force between the materials, reducing the excessive wetting and adhesion of the materials in the water spraying area, and at the same time promoting the uniform mixing of the powder and the water mist, improving the granulation effect and the operation cycle of the granulator.

[0020] (2) In this embodiment, a chassis is arranged below the rotating drum. Multiple groups of roller seats are arranged on the chassis. The reduction motor drives the gear to rotate, driving the toothed ring to rotate, and the toothed ring drives the rotating drum to rotate. At this time, the two support rings located outside the rotating drum roll on the roller seats. Two support rings and a toothed ring are respectively sleeved and fixed outside the rotating drum. A reduction motor is fixedly arranged on the chassis, and a gear is fixedly arranged at the working end of the reduction motor. The gear meshes with the toothed ring. A connecting pipe is arranged inside one end of the rotating drum. One end of the connecting pipe is fixedly provided with a spray head. The outer end of the connecting pipe is located inside the support pipe, which can reduce the occupied space of the connecting pipe, facilitate the operation of the operator, and the outer end of the connecting pipe is connected to an external water supply device.

[0021] (3) The cleaning mechanism of the present invention is composed of a moving box, an upper box, a scraping bar frame, a second sealing motor, a second hopper, a fixed frame, a third sealing motor, an installation wheel, a connecting plate, and an upper return rubber belt. The scraping bar frame rotates at a high speed, which can not only strongly scrape off the caked materials attached to the inner wall of the rotating drum, but also directly break up the larger lumps during the rotation process to achieve preliminary refinement, avoiding the defect that the traditional scraper can only scrape off but cannot break, reducing the accumulation of large materials from the source. The third sealing motor drives the moving box to reciprocate back and forth through the installation wheel and the connecting plate, so that the materials falling into the moving box collide with the inside of the moving box during the movement, realizing secondary crushing, and then falling below to be granulated together with other catalyst particles that have completed semi-granulation below, improving the granulation effect and the operation cycle of the granulator. Description of the Drawings

[0022] Figure 1 is the structural schematic diagram of the present invention;

[0023] Figure 2 is the rear structural schematic diagram of the present invention;

[0024] Figure 3 is the sectional structural schematic diagram of the retaining ring and the rotating drum of the present invention;

[0025] Figure 4 is the upward view structural schematic diagram of the lower hopper and the mesh cylinder of the present invention;

[0026] Figure 5 This is a left - view structural schematic diagram of the stirring rod and cross - bar of the present invention;

[0027] Figure 6 This is a sectional structural schematic diagram of the collection box, lower hopper and mesh cylinder of the present invention;

[0028] Figure 7 This is a structural schematic diagram of the upper box and lower box of the present invention;

[0029] Figure 8 This is a rear - view structural schematic diagram of the upper box and the second hopper of the present invention;

[0030] Figure 9 This is a rear - view sectional structural schematic diagram of the hollow plate of the present invention;

[0031] Figure 10 This is a sectional structural schematic diagram of the upper box of the present invention;

[0032] Figure 11 This is a sectional structural schematic diagram of the moving box of the present invention;

[0033] Figure 12 This is a sectional structural schematic diagram of the lower box of the present invention;

[0034] In the figure: 100, chassis; 101, retaining ring; 102, connecting pipe; 103, support ring; 104, rotating cylinder; 105, toothed ring; 106, reduction motor; 107, spray head; 200, support pipe; 201, first sealed motor; 202, mesh cylinder; 203, rotating rod; 204, first scraper; 205, collection box; 206, lower hopper; 207, inclined box; 208, inclined mesh plate; 209, stirring rod; 210, connecting spring; 212, cross - bar; 213, compression spring; 214, fixing ring; 215, rolling bar; 216, upper disc; 400, first friction wheel; 401, hollow plate; 402, lower box; 403, moving box; 404, upper box; 405, scraper rack; 406, second sealed motor; 407, second hopper; 408, fixing frame; 409, rotating rod; 410, third sealed motor; 411, groove; 412, rotating column; 413, T - shaped friction wheel; 414, transmission belt; 415, mounting wheel; 416, connecting plate; 418, upper return rubber belt. Detailed implementation manners

[0035] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0036] Example 1

[0037] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 6 ,the present invention provides a technical solution: a granulator for catalyst production. A fixed frame 408 is fixedly arranged on a chassis 100, and a support pipe 200 is fixedly arranged on the fixed frame 408. A connecting pipe 102 is fixed inside the support pipe 200, including a rotating cylinder 104, a retaining ring 101 installed at one end of the rotating cylinder 104, and a cleaning mechanism arranged inside the rotating cylinder 104. The cleaning mechanism includes a scraping and screening assembly. The scraping and screening assembly includes a collection box 205 and a first scraper 204 fixed on the collection box 205. The first scraper 204 can scrape off the materials attached to and caked on the inner wall of the rotating cylinder 104 during rotation. A lower hopper 206 is fixedly arranged at the bottom of the collection box 205, and an inclined mesh plate 208 is fixedly arranged at the bottom of the lower hopper 206. Through the inclined mesh plate 208, when the caked materials falling into the collection box 205 pass through the inclined mesh plate 208, some powdery and sized particles directly fall through the mesh holes in the inclined mesh plate 208 and are used for continuous granulation together with the catalyst particles that have completed semi-granulation below and others, while some larger caked materials slide into a mesh cylinder 202, and then the rotating rod 203 drives two groups of rolling bars 215 to rotate to crush the materials and fall to the lower part for continuous granulation together with the catalyst particles that have completed semi-granulation and others, so as to screen the falling caked materials;

[0038] An inclined box 207 is fixedly arranged above the inclined mesh plate 208. One end of the inclined box 207 and the inclined mesh plate 208 is fixedly provided with a mesh cylinder 202. A rotating rod 203 is rotatably arranged inside the mesh cylinder 202, and two groups of rolling bars 215 are fixedly arranged outside the rotating rod 203 for crushing the caked materials entering the mesh cylinder 202;

[0039] An upper disk 216 is fixedly arranged at the top of the mesh cylinder 202, and a first sealed motor 201 is fixedly arranged at the top of the upper disk 216. When removing the materials and caked on the inner wall of the rotating cylinder 104, the first sealed motor 201 is turned on, and the top of the rotating rod 203 is fixedly connected to the working end of the first sealed motor 201.

[0040] Example 2

[0041] On the basis of Example 1, please refer to Figure 3 、 Figure 4 、 Figure 5 and Figure 6, the cleaning mechanism further includes a stirring assembly, which includes a connecting rod fixed to the bottom of the rotating rod 203. Fixed rings 214 are fixedly arranged at both ends of the connecting rod. A stirring rod 209 is slidably arranged inside the fixed ring 214. When the stirring rod 209 rotates following the connecting rod, it can stir the position where water is sprayed below the spray head 107, agitate the material powder at the water spraying position, and reduce the adhesion and caking of the material on the inner wall of the rotating drum 104;

[0042] A connecting spring 210 is fixedly arranged between the top of the stirring rod 209 and the fixed ring 214. Through the connecting spring 210, the bottom of the stirring rod 209 can always be in contact and fit with the inner wall of the arc-shaped rotating drum 104 during the up and down sliding of the stirring rod 209 in the fixed ring 214, increasing the stirring effect. Moreover, one group of stirring rods 209 is close to the rotating rod 203, and the other group of stirring rods 209 is far from the rotating rod 203. When the two groups of stirring rods 209 rotate, the stirring area of the stirring rods 209 on the material on the inner wall of the rotating drum 104 is increased, and the connecting spring 210 is sleeved outside the stirring rod 209;

[0043] The bottom of the stirring rod 209 is rotatably connected to a cross bar 212 through a rotating shaft. The cross bar 212 can be pressed downward through a compression spring 213, increasing the degree of fit between the bottom of the cross bar 212 and the inner wall of the arc-shaped rotating drum 104. A compression spring 213 is fixedly arranged between the cross bar 212 and the stirring rod 209.

[0044] Through the designed cleaning mechanism of the present invention, the material attached and caked on the inner wall of the rotating drum 104 is scraped off in real time by the first scraper 204. The powder and qualified particles directly fall through the mesh holes in the inclined mesh plate 208 and are mixed with the material in the rotating drum 104 in a granulation to semi-granulation state, avoiding material waste. Larger lumps slide down along the inclined mesh plate 208 into the mesh drum 202 and are crushed to a suitable particle size by the rolling bars 215 and then fall to be mixed with the material in the granulation to semi-granulation state below. By always fitting the stirring rod 209 and the cross bar 212 to the inner wall of the rotating drum 104, when rotating with the rotating rod 203, the material at the water spraying position is stirred in a full circumferential direction, breaking the adhesion force between the materials, reducing the excessive wetting and adhesion of the material in the water spraying area, and at the same time promoting the uniform mixing of the powder and the water mist, improving the granulation effect and the operation cycle of the granulator.

[0045] In summary, start the drum granulator. At this time, pour the catalyst raw material powder into the inner part of the discharge end on the left side of the rotary drum 104 through the feeding machine, and then turn on the spray head 107 to spray water into the inside. The sprayed water mist adjusts the humidity of the powder raw material. Then, as the rotary drum 104 rotates, granules are formed. However, at the spraying position of the spray head 107 on the inner wall of the rotary drum 104, there is more moisture, which easily causes the material to adhere and agglomerate on the inner wall of the rotary drum 104. At this time, the first scraper 204 located on the collection box 205 scrapes off the adhered and agglomerated material on the inner wall and drops it into the collection box 205, and then drops into the lower hopper 206 below, and then enters the inclined mesh plate 208. The material on the inclined mesh plate 208 slides into the mesh cylinder 202. Among them, some powdery materials and granules that conform to the mesh holes of the inclined mesh plate 208 directly fall below and are granulated together with other catalyst granules in the semi-granulation state. Some larger agglomerated materials on the inclined mesh plate 208 slide into the mesh cylinder 202, and then are rolled by the two rolling bars 215 driven by the rotating rotating rod 203 to become finer granular materials, and then fall from the mesh cylinder 202 to the lower part. The old material is combined with the new material below at this time for granulation again;

[0046] When the rotating rod 203 rotates, it will drive the connecting rod below to rotate. The connecting rod drives the two fixed rings 214 to rotate, and then drives the two stirring rods 209 and the two cross bars 212 to rotate. Since the inside of the rotary drum 104 is arc-shaped, at this time, the bottom of the stirring rod 209 moves up and down along the shape of the inner wall bottom on the arc-shaped inner wall of the rotary drum 104 as it rotates, so that the bottom of the stirring rod 209 is always in contact with and fits the inner wall of the rotary drum 104. At this time, the connecting spring 210 starts to expand and contract. When the stirring rod 209 rotates, it will also drive the corresponding cross bar 212 to rotate. During the rotation process, the cross bar 212 is always subjected to a downward squeezing force by the squeezing spring 213, so that the bottom and the end of the cross bar 212 are always in contact with and fit the arc-shaped inner wall of the rotary drum 104. The rotation of the stirring rod 209 and the cross bar 212 increases the stirring effect on the material.

[0047] In this embodiment, a chassis 100 is provided below the rotary drum 104. Multiple groups of roller seats are provided on the chassis 100. The reduction motor 106 drives the gear to rotate, driving the gear ring 105 to rotate. The gear ring 105 drives the rotary drum 104 to rotate. At this time, two groups of support rings 103 located outside the rotary drum 104 roll on the roller seats. Two groups of support rings 103 and a gear ring 105 are respectively sleeved and fixed on the outside of the rotary drum 104. A reduction motor 106 is fixedly provided on the chassis 100. A gear is fixedly provided at the working end of the reduction motor 106. The gear meshes with the gear ring 105. One end inside the rotary drum 104 is provided with a connecting pipe 102. A spray head 107 is fixedly provided at one end of the connecting pipe 102. The outer end of the connecting pipe 102 is inside the support pipe 200, which can reduce the space occupied by the connecting pipe 102 and facilitate the operation of the operator. Moreover, the outer end of the connecting pipe 102 is connected to an external water supply device.

[0048] Embodiment Three

[0049] On the basis of Embodiment Two, please refer to Figures 7 - 11 , the cleaning mechanism includes an upper box 404 and a squeegee rack 405 rotatably provided on the upper box 404. A second sealing motor 406 is fixedly provided on one side of the upper box 404. The gap between the top of the upper box 404 and the inner wall of the rotary drum 101 is small and does not contact the attached materials and caked materials, which can prevent the broken materials from splashing out from the gap. When starting the cleaning mechanism, the second sealing motor 406 and the third sealing motor 410 are turned on at the same time. The second sealing motor 406 can drive the squeegee rack 405 to rotate. The squeegee rack 405 rotates at a high speed, scraping off the materials and caked materials attached to the inner wall of the rotary drum 104 and also breaking the caked materials on the inner wall and dropping them into the upper box 404. The working end of the second sealing motor 406 extends to one end of the squeegee rack 405. A second hopper 407 is fixedly provided at the bottom of the upper box 404. A crushing member for crushing the caked materials is provided below the second hopper 407;

[0050] The crushing member includes a moving box 403 provided below the second hopper 407 and a fixed frame 408 located inside the moving box 403. The moving box 403 can reciprocate in the front-rear direction on the fixed frame 408. At this time, the caked materials falling into the moving box 403 move back and forth driven by the moving box 403, and some caked materials that have not been completely broken and fall into the moving box 403 are collided and broken again. The fixed frame 408 is fixedly connected to the second hopper 407. A lower frame is fixedly provided on the second hopper 407. A third sealing motor 410 is fixedly provided on the lower frame. The third sealing motor 410 can drive the moving box 403 to reciprocate in the front-rear direction;

[0051] At the working end of the third sealed motor 410, an installation wheel 415 is fixedly arranged. A connecting plate 416 is rotatably connected to the installation wheel 415 through a first rotating shaft. The end of the connecting plate 416 is rotatably connected to the second hopper 407 through a second rotating shaft. The second hopper 407 is fixed on the support pipe 200. An upper return rubber belt 418 is fixedly arranged between the top of the moving box 403 and the second hopper 407. Through the upper return rubber belt 418 and the lower return rubber belt, when the moving box 403 moves back and forth, it can still be connected to the second hopper 407 above and the lower box 402 below.

[0052] In the present invention, a cleaning mechanism composed of a moving box 403, an upper box 404, a scraping bar frame 405, a second sealed motor 406, a second hopper 407, a fixing frame 408, a third sealed motor 410, an installation wheel 415, a connecting plate 416, and an upper return rubber belt 418 is designed. The scraping bar frame 405 rotates at a high speed, which can not only strongly scrape off the caked materials attached to the inner wall of the rotating drum 104, but also directly break larger caked materials during the rotation process, realizing preliminary refinement, avoiding the defect that the traditional scraper can only scrape off but not break, reducing the accumulation of large pieces of materials from the source. The third sealed motor 410 drives the moving box 403 to reciprocate back and forth through the installation wheel 415 and the connecting plate 416, so that the materials (including incompletely broken caked materials) falling into the moving box 403 collide with the inside of the moving box 403 during the movement, realizing secondary crushing, and then falling below to granulate together with other semi - granulated catalyst particles below, improving the granulation effect and the operation cycle of the granulator.

[0053] In summary, start the drum granulator, the rotating drum 104 rotates to start granulation, then turn on the second sealed motor 406. The second sealed motor 406 drives the scraping bar frame 405 to rotate at a high speed. The rotating scraping bar frame 405 scrapes off the attached and caked materials into the upper box 404, and can also break the attached and caked materials and let them fall on the upper box 404. At this time, some of the attached and caked materials on the inner wall of the rotating drum 104 pass through the upper box 404 and fall into the second hopper 407 below, and then enter the moving box 403 below. The third sealed motor 410 drives the installation wheel 415 to rotate, thereby driving the connecting plate 416 to move, driving the moving box 403 to reciprocate back and forth in the front - and - back direction. At this time, some of the caked materials falling into the moving box 403 collide and break with the particles and powdery materials in the moving box 403 moving back and forth, breaking some of the caked materials, and then falling below through the discharging part to granulate together with other semi - granulated catalyst particles below.

[0054] Embodiment Four

[0055] On the basis of Embodiment Three, please refer to Figure 8 、 Figure 9 、 Figure 10 、Figure 11 and Figure 12 Below the moving box 403, a feeding member is provided. The feeding member includes a lower box 402 and a rotating column 412 rotatably arranged on the lower box 402. A plurality of grooves 411 are formed inside the rotating column 412. A second return rubber band is fixedly arranged between the bottom of the moving box 403 and the lower box 402;

[0056] The bottom of the lower rack is fixedly provided with a hollow plate 401. The hollow plate 401 can protect the transmission belt 414, avoiding the situation that particles enter the interior and cause wear of the transmission belt 414. A T-shaped friction wheel 413 and a rotating rod 409 are respectively rotatably arranged inside the hollow plate 401. A transmission belt 414 is sleeved on the outer parts of the T-shaped friction wheel 413 and the rotating rod 409. A friction ring is fixedly sleeved on the outer part of the rotating column 412. The friction ring contacts the T-shaped friction wheel 413. A first friction wheel 400 is fixedly arranged at the end of the rotating rod 409. The outer wall of the first friction wheel 400 contacts the inner wall of the retaining ring 101. During this period, the rotating speed of the rotating cylinder 104 drives the discharging speed of the crushed materials in the lower box 402, making the rotating speed of the rotating cylinder 104 consistent with the discharging speed, so that the mixing ratio of the old and new materials of the materials is consistent.

[0057] Through the designed feeding member of the present invention, by contacting the inner wall of the retaining ring 101 with the first friction wheel 400, the rotating speed of the rotating cylinder 104 is synchronously converted into the rotating speed of the rotating column 412, making the discharging speed of the crushed materials completely match the granulation rhythm in the rotating cylinder 104, and also making the mixing ratio of the old and new materials consistent, avoiding the imbalance of the mixing ratio of the new and old materials caused by uneven discharging.

[0058] In summary, after the materials in the moving box 403 fall into the lower box 402 below, they then fall into the lower part from the multiple grooves 411 on the rotating rotating column 412. The rotating column 412 rotates following the rotation of the rotating cylinder 104. The rotating cylinder 104 drives the retaining ring 101 to rotate, the retaining ring 101 drives the first friction wheel 400 to rotate, the first friction wheel 400 drives the rotating rod 409 to rotate, the rotating rod 409 drives the T-shaped friction wheel 413 to rotate through the transmission belt 414 inside the hollow plate 401, and then drives the friction ring outside the rotating column 412 in contact with it to rotate, thereby driving the rotating column 412 to rotate. Then when the rotating speed of the rotating cylinder 104 is fast, it will drive the rotating speed of the rotating column 412 to increase. At this time, the number of times the groove 411 on the rotating column 412 faces upward increases. Therefore, the amount of materials discharged from the lower box 402 after passing through the groove 411 increases. When the rotating cylinder 104 rotates slowly, the rotating column 412 rotates slower, resulting in a decrease in the number of times the groove 411 faces upward. Therefore, the amount of materials discharged from the lower box 402 after passing through the groove 411 decreases. At this time, the materials falling into the lower box 402 fall into the lower part through the groove 411 and are granulated together with the catalyst particles that have completed semi-granulation below and others.

[0059] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical method of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A granulator for catalyst production, comprising a rotating drum (104), a retaining ring (101) installed at one end of the rotating drum (104), and a cleaning mechanism disposed within the rotating drum (104), characterized in that, The cleaning mechanism includes: A scraping and screening component, including a collection box (205) and a first scraper (204) fixed on the collection box (205). A lower hopper (206) is fixedly arranged at the bottom of the collection box (205), and an inclined screen plate (208) is fixedly arranged at the bottom of the lower hopper (206) for screening the dropped caked materials. An inclined box (207) is fixedly arranged above the inclined screen plate (208). One end of the inclined box (207) and the inclined screen plate (208) is fixedly provided with a mesh cylinder (202). A rotating rod (203) is rotatably arranged inside the mesh cylinder (202), and two groups of rolling bars (215) are fixedly arranged on the outside of the rotating rod (203) for crushing the caked materials entering the mesh cylinder (202).

2. The granulator for catalyst production according to claim 1, characterized in that: An upper plate (216) is fixedly arranged at the top of the mesh cylinder (202), and a first sealed motor (201) is fixedly arranged at the top of the upper plate (216).

3. A granulator for catalyst production according to claim 1, characterized in that: The cleaning mechanism further includes a stirring component, including a connecting rod fixed to the bottom of the rotating rod (203). Fixed rings (214) are fixedly arranged at both ends of the connecting rod, and a stirring rod (209) is slidably arranged inside the fixed rings (214).

4. The granulator for catalyst production according to claim 3, wherein: A connecting spring (210) is fixedly arranged between the top of the stirring rod (209) and the fixed ring (214). The bottom of the stirring rod (209) is rotatably connected to a cross bar (212) through a mounting shaft, and a compression spring (213) is fixedly arranged between the cross bar (212) and the stirring rod (209).

5. A granulator for catalyst production according to claim 1, characterized in that: The cleaning mechanism includes an upper box (404) and a scraper rack (405) rotatably arranged on the upper box (404). A second sealed motor (406) is fixedly arranged on one side of the upper box (404), and a second hopper (407) is fixedly arranged at the bottom of the upper box (404). A crushing part for crushing the caked materials is arranged below the second hopper (407).

6. The granulator for catalyst production according to claim 5, wherein: The crushing part includes a moving box (403) arranged below the second hopper (407) and a fixing frame (408) located inside the moving box (403). The fixing frame (408) is fixedly connected to the second hopper (407). A lower frame is fixedly arranged on the second hopper (407), and a third sealed motor (410) is fixedly arranged on the lower frame.

7. A granulator for catalyst production according to claim 6, characterized in that: An installation wheel (415) is fixedly arranged at the working end of the third sealed motor (410). A connecting plate (416) is rotatably connected to the installation wheel (415) through a first shaft. An upper return rubber belt (418) is fixedly arranged between the top of the moving box (403) and the second hopper (407).

8. A granulator for producing a catalyst according to claim 6, characterized in that: A discharging part is arranged below the moving box (403). The discharging part includes a lower box (402) and a rotating column (412) rotatably arranged on the lower box (402). A plurality of groups of grooves (411) are formed inside the rotating column (412).

9. A granulator for catalyst production according to claim 8, characterized in that: A hollow plate (401) is fixedly arranged at the bottom of the lower shelf. A T-shaped friction wheel (413) and a rotating rod (409) are respectively rotatably arranged inside the hollow plate (401). A transmission belt (414) is sleeved outside the T-shaped friction wheel (413) and the rotating rod (409). A friction ring is sleeved and fixed outside the rotating column (412). A first friction wheel (400) is fixedly arranged at the end of the rotating rod (409).

10. A granulator for producing a catalyst according to claim 1, characterized in that: A chassis (100) is arranged below the rotating cylinder (104). Multiple groups of roller seats are arranged on the chassis (100). Two groups of support rings (103) and a toothed ring (105) are respectively sleeved and fixed outside the rotating cylinder (104). A connecting pipe (102) is arranged inside one end of the rotating cylinder (104). A spray head (107) is fixedly arranged at one end of the connecting pipe (102).

Images