CN213853648U - Fluidized bed blowback dust removal structure - Google Patents
Fluidized bed blowback dust removal structure Download PDFInfo
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- CN213853648U CN213853648U CN202022094434.6U CN202022094434U CN213853648U CN 213853648 U CN213853648 U CN 213853648U CN 202022094434 U CN202022094434 U CN 202022094434U CN 213853648 U CN213853648 U CN 213853648U
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- fluidized bed
- bed body
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- blowback
- blowing
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Abstract
The utility model provides a fluidized bed blowback dust removal structure belongs to pharmaceutical equipment technical field, including the fluidized bed body, the air intake that is used for communicating the fan is seted up to the lower part of fluidized bed body, the air outlet has been seted up on the upper portion of fluidized bed body, the baffle is installed to the inner chamber of fluidized bed body, a plurality of sections of straining are installed to the lower terminal surface of baffle, set up a plurality of seals that are used for the intercommunication to strain a section of thick bamboo on the baffle, the top of fluidized bed body is provided with air supply mechanism, the last a plurality of blowback pipes that are connected with of air supply mechanism, a plurality of blowback pipe top-down run through the fluidized bed body, the tip of blowback pipe is equipped with the closing plate with the seal adaptation, a plurality of actuating mechanism with a plurality of blowback pipe one-to-ones are installed at the top of fluidized bed body. The utility model provides a pair of fluidized bed blowback dust removal structure utilizes behind the closing plate shutoff seal port to strain a section of thick bamboo and carry out the deashing and handle, and a plurality of section of thick bamboo of straining carries out the deashing in turn in proper order, has improved the deashing effect.
Description
Technical Field
The utility model belongs to the technical field of pharmaceutical equipment, more specifically say, relate to a fluidized bed blowback dust removal structure.
Background
The fluidized bed is important equipment of a wet granulation line in the pharmaceutical industry, and can realize various pharmaceutical processes such as drying, granulation, pellet coating and the like. When the powder or particulate material boils in the fluidised bed, to ensure that the material is not carried out of the apparatus by the gas stream, a filter cartridge is mounted at the top of the fluidised bed. The fine powder is retained in the fluid bed by the cartridge. Over time, the accumulation of material on the outside of the filter cartridge increases, at which time it is necessary to peel off the particulate material sticking on the outside of the filter structure from the cartridge, otherwise the filter cartridge becomes blocked, resulting in abnormal operation of the apparatus.
The commonly used blowback deashing structure in the existing market. When the dust is cleaned, the blowback valve is opened, and compressed air is blown out from the nozzle above the filter cartridge and blown into the filter cartridge. When the dust is cleaned by back blowing, the fan is still in an operating state, upward airflow exists in the filter cylinder, the back blowing airflow needs to overcome the upward airflow of the fan firstly, and then the back blowing air is blown out from the filter cylinder, so that the dust cleaning effect is poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fluidized bed blowback dust removal structure, when aiming at solving the blowback deashing, the fan still is in running state, strains and exists ascending air current in the section of thick bamboo, and after the ascending air current of fan need be overcome earlier to the blowback air current, blows off blowback gas from straining a section of thick bamboo again, the relatively poor problem of deashing effect.
In order to achieve the above object, the utility model adopts the following technical scheme: the fluidized bed back-blowing dust removal structure comprises a fluidized bed body, wherein an air inlet used for being communicated with a fan is formed in the lower portion of the fluidized bed body, an air outlet is formed in the upper portion of the fluidized bed body, a partition plate is installed in an inner cavity of the fluidized bed body, a plurality of filter cylinders are installed on the lower end face of the partition plate, a plurality of sealing ports used for being communicated with the filter cylinders are formed in the partition plate, an air source mechanism is arranged at the top of the fluidized bed body and connected with a plurality of back-blowing pipes, the back-blowing pipes penetrate through the fluidized bed body from top to bottom and are arranged in one-to-one correspondence with the filter cylinders, sealing plates matched with the sealing ports are arranged at the end portions of the back-blowing pipes, a plurality of driving mechanisms corresponding to the back-blowing pipes one-to-one are installed at the top of the fluidized bed body, the driving mechanisms drive the back-blowing pipes to descend to be used for plugging the sealing plates on the sealing ports, to intercept upward air flow within the cartridge.
As another embodiment of the application, the air source mechanism is connected with the plurality of blowback pipes through connecting pipes, and the connecting pipes are communicated with the blowback pipes through pulse blowback valves.
As another embodiment of the present application, the gas source mechanism is a gas collecting bag.
As another embodiment of the present application, the sealing plate is a circular disk plate, and an outer diameter of the circular disk plate is larger than an inner diameter of the sealing opening.
As another embodiment of the present application, a sealing ring is disposed on the lower end surface of the disk plate.
As another embodiment of the present application, a nozzle is disposed at an end of the blowback pipe, and the sealing plate is fixedly disposed on the nozzle.
As another embodiment of the present application, the nozzle is a venturi nozzle.
As another embodiment of the present application, the driving mechanism is a cylinder.
As another embodiment of the present application, a press-fitting groove is formed in an outer peripheral surface of the partition plate, and a sealing ring for sealing the partition plate and an inner wall of the fluidized bed body is disposed in the press-fitting groove.
As another embodiment of the present application, a hollow cavity is provided in the sealing ring.
The utility model provides a pair of fluidized bed blowback dust removal structure's beneficial effect lies in: compared with the prior art, the utility model relates to a fluidized bed blowback dust removal structure, fluidized bed normal operating and when not carrying out the blowback deashing and handling, the lower extreme of blowback pipe has certain clearance with straining a section of thick bamboo, and the air current is through straining a section of thick bamboo back, flows smoothly from straining a clearance between a section of thick bamboo and the blowback pipe. When the dust removing operation is carried out by back flushing, firstly, the driving mechanism of a filter cylinder needing dust removing is operated to make the back flushing pipe move downwards, so that the sealing opening at the top of the filter cylinder is sealed by the sealing plate, and the upward airflow passing through the filter cylinder is cut off. The back-blowing pipe carries out back-blowing to blow off the materials attached to the filter cylinder. Then the driving mechanism drives the back-blowing pipe to move upwards, gas flows out from a gap between the filter cartridge and a sealing plate of the back-blowing pipe, the back-blowing dust-cleaning action is finished, and the filter cartridge starts to filter again. After the filter cartridge is used for filtering, other filter cartridges sequentially repeat the actions and perform ash removal in turn, so that the ash removal effect is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a fluidized bed blowback dust removal structure provided in an embodiment of the present invention;
fig. 2 is a partial schematic view of a fluidized bed blowback dust removal structure provided by an embodiment of the present invention.
In the figure: 1. a fluidized bed body; 2. an air inlet; 3. an air outlet; 4. a partition plate; 5. a filter cartridge; 6. sealing the opening; 7. a blowback pipe; 8. a gas collection bag; 9. a sealing plate; 10. a cylinder; 11. a connecting pipe; 12. a nozzle; 13. a seal ring; 14. pulse blowback valve.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 and fig. 2, a fluid bed reverse blowing dust removing structure according to the present invention will now be described. A fluidized bed back-blowing dust-removing structure comprises a fluidized bed body 1, an air inlet 2 used for communicating a fan is arranged at the lower part of the fluidized bed body 1, an air outlet 3 is arranged at the upper part of the fluidized bed body 1, a baffle 4 is arranged in an inner cavity of the fluidized bed body 1, a plurality of filter cartridges 5 are arranged on the lower end surface of the baffle 4, a plurality of sealing ports 6 used for communicating the filter cartridges 5 are arranged on the baffle 4, an air source mechanism is arranged at the top of the fluidized bed body 1 and connected with a plurality of back-blowing pipes 7, the back-blowing pipes 7 penetrate through the fluidized bed body 1 from top to bottom and are arranged in one-to-one correspondence with the filter cartridges 5, sealing plates 9 matched with the sealing ports 6 are arranged at the end parts of the back-blowing pipes 7, a plurality of driving mechanisms corresponding to the back-blowing pipes 7 one-to-one are arranged at the top of the fluidized bed body 1, the driving mechanisms are used for plugging the sealing plates 9 on the sealing ports 6 by driving the back-blowing pipes 7 to descend, to intercept the upward flow of air inside the filter cartridge 5.
The utility model provides a pair of fluidized bed blowback dust removal structure compares with prior art, and when the fluidized bed normal operating did not carry out the blowback deashing and handles, the lower extreme of blowback pipe 7 had certain clearance with straining a section of thick bamboo 5, and the air current is through straining a section of thick bamboo 5 back, flows smoothly from straining a clearance between 5 and the blowback pipe 7. When performing the back-blowing dust-cleaning operation, firstly, the driving mechanism of one filter cartridge 5 to be cleaned is operated to move the back-blowing pipe 7 downwards, so that the sealing opening 6 at the top of the filter cartridge 5 is sealed by the sealing plate 9, and the upward air flow passing through the filter cartridge 5 is cut off. The back-blowing pipe 7 performs back-blowing to blow off the materials attached to the filter cartridge 5. Then the driving mechanism drives the back-blowing pipe 7 to move upwards, the gas flows out from the gap between the filter cartridge 5 and the sealing plate 9 of the back-blowing pipe 7, the back-blowing ash removal action is finished, and the filter cartridge 5 starts to filter again. After the filter cartridge 5 is filtered, other filter cartridges 5 sequentially repeat the actions and perform ash removal in turn, so that the ash removal effect is improved.
As a specific embodiment of the fluidized bed back-blowing dust-removing structure provided by the present invention, please refer to fig. 1 to 2, the air source mechanism is connected to the plurality of back-blowing pipes 7 through the connecting pipe 11, and the connecting pipe 11 is connected to the back-blowing pipe 7 through the pulse back-blowing valve 14.
In this embodiment, the connection pipe 11 is a flexible pipe, which can compensate and buffer the vibration of the pipeline caused by the air pressure. The pulse back-blowing valve 14 can provide intermittent air pressure, which is the pulse air pressure of the back-blowing pipe 7 and improves the dust cleaning effect of the back-blowing pipe 7 on the filter cartridge 5.
As a specific embodiment of the fluidized bed back-blowing dust-removing structure provided by the present invention, please refer to fig. 1 to 2, the air source mechanism is an air collecting bag 8.
In this embodiment, the gas collecting bag 8 can stably output gas and distribute the gas for each process.
As a specific embodiment of the fluidized bed back-blowing dust-removing structure provided by the present invention, please refer to fig. 1 to 2, the sealing plate 9 is a disk plate, and the outer diameter of the disk plate is larger than the inner diameter of the sealing opening 6.
In this embodiment, the disk plate may be screwed or welded at the lower end of the blowback pipe 7, the outer diameter of the disk plate is larger than the inner diameter of the sealing opening 6, when the disk plate is pressed on the sealing opening 6, the disk plate can be ensured to completely seal the sealing opening 6, and the condition of air leakage at the upper end of the filter cartridge 5 is avoided.
As a specific embodiment of the fluidized bed back-blowing dust removing structure provided by the present invention, please refer to fig. 1 to 2, the lower end surface of the disk plate is provided with a sealing ring.
In this embodiment, the sealing washer bonds in the periphery of the lower end plate of disc board, and the external diameter of sealing washer should be greater than the external diameter of seal mouth 6, and when disc board pressed on seal mouth 6, the sealing washer compressed tightly at the up end of disc board and baffle 4, can improve its leakproofness, avoids gas leakage.
Referring to fig. 1 to 2, the end of the back-blowing pipe 7 is provided with a nozzle 12, and the sealing plate 9 is fixed on the nozzle 12.
In this embodiment, the nozzle 12 is installed at the lower end of the blowback pipe 7 in a thread sealing manner, the sealing plate 9 is fixed on the outer wall of the nozzle 12 in a thread connection or welding manner, and the nozzle 12 can improve the air injection pressure of the blowback pipe 7 and improve the ash removal effect.
As a specific implementation manner of the utility model provides a pair of fluidized bed blowback dust removal structure, nozzle 12 is venturi nozzle 12.
In this embodiment, the specific structure of the venturi nozzle 12 can reduce the pressure loss of the air flow, so that the air pressure passing through the nozzle 12 from the blowback pipe 7 is not attenuated, and the blowback effect is improved.
As a specific embodiment of the utility model provides a pair of fluidized bed blowback dust removal structure, actuating mechanism is cylinder 10.
In this embodiment, the air supply is a power source common in the production field, and the air supply can be reasonably utilized by using the air cylinder 10, that is, the air can be directly supplied by the air collecting bag 8.
As a specific embodiment of a pair of fluidized bed blowback dust removal structure, please refer to fig. 2, the pressure equipment groove is seted up to 4 outer peripheral faces of baffle, is equipped with the sealing ring 13 that is used for shutoff baffle 4 and 1 inner wall of fluidized bed body in the pressure equipment inslot.
In this embodiment, the sealing ring 13 is installed in the press-fitting groove, the sealing ring 13 has certain elasticity for itself, and may be made of rubber, and the sealing ring 13 can ensure the sealing performance between the partition plate 4 and the inner wall of the fluidized bed body 1, thereby preventing gas from passing through the gap.
As a specific embodiment of the fluidized bed back-blowing dust removing structure provided by the present invention, please refer to fig. 2, a hollow cavity is disposed in the sealing ring 13.
In this embodiment, install the check valve on the sealing ring 13, can aerify to the cavity intracavity through the check valve for sealing ring 13 inflation increases the volume of sealing ring 13, can improve the leakproofness of baffle 4 and fluidized bed body 1 inner wall.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A fluidized bed back-blowing dust removal structure is characterized by comprising a fluidized bed body, wherein an air inlet used for being communicated with a fan is formed in the lower portion of the fluidized bed body, an air outlet is formed in the upper portion of the fluidized bed body, a partition plate is installed in an inner cavity of the fluidized bed body, a plurality of filter cartridges are installed on the lower end face of the partition plate, a plurality of sealing ports used for being communicated with the filter cartridges are formed in the partition plate, an air source mechanism is arranged at the top of the fluidized bed body and connected with a plurality of back-blowing pipes, the back-blowing pipes penetrate through the fluidized bed body from top to bottom and are arranged in one-to-one correspondence with the filter cartridges, sealing plates matched with the sealing ports are arranged at the end portions of the back-blowing pipes, a plurality of driving mechanisms corresponding to the back-blowing pipes one-to-one are installed at the top of the fluidized bed body, the driving mechanisms drive the back-blowing pipes to descend to be used for plugging the sealing plates on the sealing ports, to intercept upward air flow within the cartridge.
2. The structure of claim 1, wherein the air supply mechanism is connected to a plurality of the blowback pipes through connecting pipes, and the connecting pipes are connected to the blowback pipes through pulse blowback valves.
3. The structure of claim 1 or 2, wherein the gas source mechanism is a gas collecting bag.
4. The structure of claim 1, wherein the sealing plate is a disk plate, and the outer diameter of the disk plate is larger than the inner diameter of the sealing opening.
5. The reverse blowing dust removing structure of fluidized bed according to claim 4, wherein the lower end surface of said disk plate is provided with a sealing ring.
6. The structure of claim 1, wherein the end of the blowback pipe is provided with a nozzle, and the sealing plate is fixed to the nozzle.
7. The reverse blowing dust removing structure of the fluidized bed according to claim 6, wherein the nozzle is a venturi nozzle.
8. The reverse blowing dust removing structure of the fluidized bed according to claim 1, wherein the driving mechanism is a cylinder.
9. The reverse blowing dust removing structure of the fluidized bed according to claim 1, wherein a press groove is formed on an outer peripheral surface of the partition plate, and a sealing ring for sealing the partition plate and an inner wall of the fluidized bed body is disposed in the press groove.
10. The reverse blowing dust removing structure of the fluidized bed according to claim 9, wherein a hollow cavity is formed in the sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022094434.6U CN213853648U (en) | 2020-09-22 | 2020-09-22 | Fluidized bed blowback dust removal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022094434.6U CN213853648U (en) | 2020-09-22 | 2020-09-22 | Fluidized bed blowback dust removal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213853648U true CN213853648U (en) | 2021-08-03 |
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ID=77049618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022094434.6U Active CN213853648U (en) | 2020-09-22 | 2020-09-22 | Fluidized bed blowback dust removal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213853648U (en) |
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2020
- 2020-09-22 CN CN202022094434.6U patent/CN213853648U/en active Active
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