Bag pressing device for dust removal of vertical dryer

Abstract

The utility model provides a vertical drying -machine dust cloth bag presss from both sides device, including dust chamber, dust chamber lower extreme horizontal arrangement cloth bag mounting panel, the cloth bag mounting panel symmetry is equipped with two semicircular press plate in the upside, the dust chamber top of press plate upside respectively is linked with the dust exhaust pipe, the cloth bag mounting panel bottom surface is equipped with a plurality of through -hole, a plurality of through -hole are equipped with cylindrical dust cloth bag respectively in, and its top with corresponding two press plate links to form two independent filter chamber, dust chamber top two sides are equipped with respectively lift cylinder and its output shaft respectively penetrates dust chamber top and links with opposite press plate top, the cloth bag mounting panel with a plurality of dust cloth bag outside between two press plate is equipped with press bag telescopic cage respectively on, the inside of press bag telescopic cage is along its height direction interval and is equipped with a plurality of with dust cloth bag outer wall's shake material cone of pasting, this device increases the friction of dust cloth bag by limiting dust cloth bag up and down shake space to guarantee dust cloth bag to keep unobstructed.

Description

Technical Field

[0001] This utility model belongs to the field of dryers, specifically relating to a dust collector bag pressing device for a vertical dryer. Background Technology

[0002] Fluidized bed dryers, also known as boiling granulation dryers, involve material powder particles undergoing annular fluidization within a raw material container (fluidized bed). These particles are preheated and mixed with purified heated air. A binder solution is then atomized and sprayed in, causing several particles to aggregate into granules containing the binder. As the hot air continuously dries the material, moisture evaporates from the granules, and the binder solidifies. This process is repeated continuously, forming ideal, uniform, multi-porous spherical particles. During fluidization, the fine material powder rises under the strong airflow. Some of the fine powder rises and is captured by the filter bag, while some powder smaller than the filter bag pore size is discharged through the dust exhaust pipe. After a certain time, the exhaust valve closes, and the filter bag in the filter chamber is shaken up and down by a cylinder. The shaken-off powder falls back into the fluidized bed for re-granulation, thus cleaning the captured powder, keeping the filter bag unobstructed, and reducing costs. However, during the process of the cylinder raising and lowering to shake the filter bags, the large gaps between multiple filter bags cause them to become loose, and not all the powder on them can be shaken off. Some powder will remain on the filter bags, which not only wastes the powder and increases costs, but also causes the filter bags to become clogged over time.

[0003] In view of this, in order to solve the above problems, this utility model proposes a belt pressing device that increases the friction of the dust collector bag by limiting the up-and-down shaking space, so that all the powder on the dust collector bag can flow back to the fluidized bed during the up-and-down shaking process. The device has a reasonable structural design and can ensure that the dust collector bag remains unobstructed. Summary of the Invention

[0004] This utility model provides a dust collector bag pressing device for a vertical dryer. By limiting the vertical shaking space of the dust collector bag, the friction of the dust collector bag is increased, allowing all the powder on the dust collector bag to flow back to the fluidized bed during the vertical shaking process. The specific solution is as follows:

[0005] A dust collector bag pressing device for a vertical dryer includes a dust collection chamber. A bag mounting plate is horizontally arranged at the lower end of the dust collection chamber. Two semi-circular pressing plates are symmetrically arranged above the bag mounting plate. Dust discharge pipes are connected to the top of the dust collection chamber above the pressing plates. Multiple through holes are opened on the bottom surface of the bag mounting plate. Cylindrical dust collector bags are respectively arranged in the multiple through holes, and their tops are connected to the corresponding two pressing plates to form two independent filter chambers. Lifting cylinders are respectively arranged on both sides of the top of the dust collection chamber, and their output shafts pass through the top of the dust collection chamber and are connected to the top of the opposite pressing plates. A bag pressing telescopic cage is respectively arranged on the outer side of the multiple dust collector bags between the bag mounting plate and the two pressing plates. Several shaking cones that are attached to the outer wall of the dust collector bags are arranged at intervals along the height direction on the inner side of the bag pressing telescopic cage.

[0006] Furthermore, the bag-pressing telescopic cage includes a first telescopic tube, a first telescopic rod, and a fixing ring. Multiple first telescopic tubes are arranged at intervals along the radial direction on the pressing plate on the outside of the dust collector bag. The fixing ring is fixedly connected to the multiple first telescopic tubes. Each of the multiple first telescopic tubes is provided with a first telescopic rod, and the bottom end of the first telescopic rod is fixedly connected to the bag mounting plate.

[0007] Furthermore, multiple second telescopic rods are provided at intervals along the arc direction on the outer side of the lower surface of the two semi-circular pressure plates. Second telescopic tubes are respectively sleeved on the outer side of the lower part of the multiple second telescopic rods, and the bottom end of the second telescopic tubes is fixedly connected to the bag mounting plate. A return spring is fixedly connected between the second telescopic rod inside the second telescopic tube and the bag mounting plate.

[0008] Furthermore, each of the second telescopic pipes has an inverted T-shaped limiting block vertically installed on the side of the dust collector chamber wall, and a corresponding limiting groove suitable for the inverted T-shaped limiting block is vertically installed on the corresponding dust collector chamber wall.

[0009] Furthermore, the outer periphery of the bag mounting plate is provided with multiple limiting blocks at even intervals, and the lower end of the dust removal chamber is provided with a limiting slot suitable for the multiple limiting blocks.

[0010] Furthermore, rubber buffer pads are provided on the output end of the lifting cylinder and on the pressure plate opposite it.

[0011] The beneficial effects of this utility model are:

[0012] This utility model discloses a dust collector bag pressing device for a vertical dryer. It includes a pressing telescopic cage with a shaking cone inside, a second telescopic rod and a second telescopic tube connecting the bag mounting plate and the pressing plate, and a return spring. When the dust collector bag is shaken up and down by a lifting cylinder, the shaking cones continuously rub against the outer circumference of the dust collector bag, causing the powder adhering to the bag to fall onto the fluidized bed. The pressing plates on both sides return to their initial positions under the action of the return springs. A limiting block and a matching limiting groove outside the second telescopic tube ensure smooth movement during the pressing plate's return process, thus ensuring unobstructed flow of the dust collector bag and preventing blockage. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a bottom-view perspective view of the present invention.

[0015] Figure 3 This is a front sectional view of the present invention.

[0016] Figure 4 This is an internal view of the dust removal chamber of this utility model.

[0017] Figure 5 This is a partial schematic diagram of the present invention.

[0018] Figure 6 This utility model relates to a telescopic cage for pressing bags.

[0019] Explanation of reference numerals in the attached drawings: 1. Dust removal chamber; 2. Bag mounting plate; 3. Pressure plate; 4. Dust discharge pipe; 5. Through hole; 6. Dust removal bag; 7. Lifting cylinder; 8. Bag pressing telescopic cage; 801. First telescopic pipe; 802. First telescopic rod; 803. Fixing ring; 9. Shaking cone; 10. Second telescopic rod; 11. Second telescopic pipe; 12. Return spring; 13. Limiting block; 14. Limiting groove; 15. Limiting slot; 16. Rubber buffer pad; 17. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] See Figure 1-6A dust collector bag pressing device for a vertical dryer includes a dust collection chamber 1. A bag mounting plate 2 is horizontally installed at the lower end of the dust collection chamber 1. The bag mounting plate 2 is detachably connected to the lower end of the dust collection chamber 1. Two semi-circular pressing plates 3 are symmetrically arranged directly above the bag mounting plate 2. Dust discharge pipes 4 are respectively connected to the top of the dust collection chamber 1 directly above the pressing plates 3. Multiple through holes 5 are opened on the bottom surface of the bag mounting plate 2. Cylindrical dust collector bags 6 are respectively installed in the multiple through holes 5, and their tops are connected to the corresponding two pressing plates 3 to form two independent filter chambers. During the bag shaking process, the filter chambers on the left and right sides shake the bags up and down sequentially. In this configuration, lifting cylinders 7 are respectively installed on both sides of the top of the dust removal chamber 1, and their output shafts pass through the top of the dust removal chamber 1 and are connected to the top of the opposite pressure plate 3. Multiple dust removal bags 6 between the bag mounting plate 2 and the two pressure plates 3 are respectively provided with bag pressing telescopic cages 8. Several shaking cones 9 that are attached to the outer wall of the dust removal bag 6 are provided at intervals along the height direction on the inner side of the bag pressing telescopic cage 8. The bag pressing telescopic cage 8 and the shaking cones 9 are designed to limit the shaking space of the dust removal bag 6 when it shakes up and down and to increase the friction of the dust removal bag 6, so as to ensure that all the powder on the dust removal bag 6 is returned to the fluidized bed.

[0022] The preferred bag-pressing telescopic cage 8 includes a first telescopic tube 801, a first telescopic rod 802, and a fixing ring 803. Multiple first telescopic tubes 801 are arranged at intervals along the radial direction on the pressure plate 3 on the outer side of the dust collector bag 6. The first telescopic tubes 801 are fixedly connected to the lower surface of the pressure plate 3. The fixing ring 803 is fixedly connected to the multiple first telescopic tubes 801. A first telescopic rod 802 is provided in each of the multiple first telescopic tubes 801, and the bottom end of the first telescopic rod 802 is fixedly connected to the bag mounting plate 2.

[0023] The two semi-circular pressure plates 3 are preferably provided with multiple second telescopic rods 10 at intervals along their arc direction on the outer side of their lower surfaces. The lower outer side of each of the multiple second telescopic rods 10 is fitted with a second telescopic tube 11, and the bottom end of the second telescopic tube 11 is fixedly connected to the bag mounting plate 2. A return spring 12 is fixedly connected between the second telescopic rod 10 inside the second telescopic tube 11 and the bag mounting plate 2. The return spring 12 is provided so that when the lifting cylinder 7 pushes the pressure plate 3 down and returns to its original position, the return spring 12 can use its elastic force to make the pressure plate 3 return to its original position.

[0024] The preferred multiple second telescopic pipes 11 are respectively provided with inverted T-shaped limiting blocks 13 on the side of the inner wall of the dust removal chamber 1. The corresponding inner wall of the dust removal chamber 1 is provided with a limiting groove 14 suitable for the inverted T-shaped limiting blocks 13. The setting of the limiting blocks 13 and the limiting groove 14 facilitates the stability of the pressure plate 3 during the return process.

[0025] The preferred bag mounting plate 2 has multiple limit blocks 15 evenly spaced on its outer periphery, and the lower end of the dust removal chamber 1 has a limit slot 16 suitable for the multiple limit blocks 15.

[0026] The preferred lifting cylinder 7 is provided with rubber buffer pads 17 on the output end and the pressure plate 3 opposite to it. The rubber buffer pads 17 are provided to reduce the impact force on the pressure plate 3 when the lifting cylinder 7 reciprocates. By setting the output end of the lifting cylinder 7 and the pressure plate 3 as separate structures, the shaking force of the dust collector bag 6 can be improved with the cooperation of multiple return springs 12.

[0027] The working principle of this utility model is as follows: When the dust collector bag 6 is shaken up and down, the left chamber lifting cylinder 7 first moves up and down, pushing the pressure plate 3 downward. Then, multiple return springs 12 push the second telescopic rod 10 to return the pressure plate 3 to its original position. During the shaking process of the dust collector bag 6, the bag pressing telescopic cage 8 set on the outside of the dust collector bag 6 and several shaking cones 9 set on the inside of the first telescopic tube 801 restrict the space of the dust collector bag 6 while the shaking cones 9 increase the friction and squeezing force on the outside of the dust collector bag 6 during the shaking. This allows the powder attached to the dust collector bag 6 to fall back into the fluidized bed for granulation. After the shaking of the dust collector bag 6 in the left chamber is finished, the dust collector bag 6 in the right chamber continues to shake. This reciprocating motion ensures the smooth flow of the dust collector bag 6 and prevents it from becoming clogged.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dust collector bag pressing device for a vertical dryer, characterized in that: The system includes a dust collection chamber (1), with a bag mounting plate (2) horizontally positioned at the lower end of the dust collection chamber (1). Two semi-circular pressure plates (3) are symmetrically positioned above the bag mounting plate (2). Dust discharge pipes (4) are connected to the top of the dust collection chamber (1) directly above the pressure plates (3). The bottom surface of the bag mounting plate (2) has multiple through holes (5), and cylindrical dust collection bags (6) are respectively installed in the multiple through holes (5), with their tops connected to the corresponding two pressure plates (3). To form two independent filtration chambers, the top of the dust removal chamber (1) is provided with lifting cylinders (7) on both sides, and their output shafts pass through the top of the dust removal chamber (1) and are connected to the top of the opposite pressure plate (3). The bag mounting plate (2) and the two pressure plates (3) are provided with bag pressing telescopic cages (8) on the outside of the multiple dust removal bags (6). The inner side of the bag pressing telescopic cage (8) is provided with several shaking cones (9) that are attached to the outer wall of the dust removal bag (6) along its height direction.

2. The dust collector bag pressing device for a vertical dryer according to claim 1, characterized in that: The bag-pressing telescopic cage (8) includes a first telescopic tube (801), a first telescopic rod (802), and a fixing ring (803). Multiple first telescopic tubes (801) are spaced apart along the radial direction on the pressure plate (3) on the outside of the dust collector bag (6). The fixing ring (803) is fixedly connected to the multiple first telescopic tubes (801). A first telescopic rod (802) is provided in each of the multiple first telescopic tubes (801), and the bottom end of the first telescopic rod (802) is fixedly connected to the bag mounting plate (2).

3. The dust collector bag pressing device for a vertical dryer according to claim 1, characterized in that: Multiple second telescopic rods (10) are provided at intervals along the arc direction on the outer side of the lower surface of the two semi-circular pressure plates (3). A second telescopic tube (11) is sleeved on the lower outer side of the multiple second telescopic rods (10), and the bottom end of the second telescopic tube (11) is fixedly connected to the bag mounting plate (2). A return spring (12) is fixedly connected between the second telescopic rod (10) inside the second telescopic tube (11) and the bag mounting plate (2).

4. The dust collector bag pressing device for a vertical dryer according to claim 3, characterized in that: Multiple second telescopic pipes (11) are vertically provided with inverted T-shaped limiting blocks (13) on one side of the inner wall of the dust removal chamber (1), and corresponding limiting grooves (14) suitable for the inverted T-shaped limiting blocks (13) are vertically provided on the inner wall of the dust removal chamber (1).

5. The dust collector bag pressing device for a vertical dryer according to claim 1, characterized in that: The outer periphery of the bag mounting plate (2) is provided with a plurality of limiting blocks (15) evenly spaced, and the lower end of the dust removal chamber (1) is provided with a limiting slot (16) suitable for the plurality of limiting blocks (15).

6. The dust collector bag pressing device for a vertical dryer according to claim 1, characterized in that: The lifting cylinder (7) has rubber buffer pads (17) on its output end and on the pressure plate (3) opposite to it.

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