Dust removal system for wet type granulator

Abstract

The utility model discloses a dust removal system for a wet type granulator. The system is arranged on a pot body and comprises a first filtering mechanism arranged on the pot body, the first filtering mechanism is connected with vacuumizing equipment and the external environment of a production area, a first control valve is arranged between the external environment of the production area and the pot body, and a second control valve is arranged between the vacuumizing equipment and the pot body; and a detection mechanism is arranged on the first filtering mechanism. The dust removal device is simple in structure, large shock waves can be formed only by consuming indoor air through cooperation of the control valves, most of powder on the first filtering mechanism can be removed during cleaning each time, the cleaning effect is good, and loss of equipment is low.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal, and more specifically, to a dust removal system for a wet granulator. Background Art

[0002] During the feeding or operation of solid dosage process equipment (such as wet granulators and vacuum feeders), it is necessary to add vacuum equipment to maintain the negative pressure environment in the container. In order to avoid material loss, filters are usually configured at the corresponding interfaces in the container connected to the vacuum pipeline. However, during the feeding or operation process, the filter is often blocked by fine powder of the material. This results in prolonged feeding time, reduced feeding efficiency, and increased energy consumption; in severe cases, it can also cause the inability to feed and equipment shutdown. Therefore, it is particularly important to keep the filter of solid dosage process equipment clean during the operation of the equipment.

[0003] At present, the filter cleaning of solid dosage equipment mainly adopts the method of shaking the bag or compressed air backblowing. During the bag shaking process, energy consumption is large and the equipment body is impacted, which may cause equipment failure. Compressed air backblowing requires a large amount of compressed air and has low cleaning efficiency. Utility Model Content

[0004] Aiming at the defects of poor filter effect, low working efficiency or high equipment failure rate in the prior art, the utility model provides a dust removal system for a wet granulator.

[0005] A dust removal system for a wet granulator is arranged on a pot body, comprising: a first filtering mechanism arranged on the pot body, the first filtering mechanism being connected to a vacuum pumping device and an external environment of a production area respectively, a first control valve being arranged between the external environment of the production area and the pot body, and a second control valve being arranged between the vacuum pumping device and the pot body; a detection mechanism is also arranged on the first filtering mechanism.

[0006] Furthermore, the first filtering mechanism is also connected to a compressed air source, and a third control valve is provided between the compressed air source and the first filtering mechanism.

[0007] Further, the third control valve is located between the compressed air source and the second control valve.

[0008] Furthermore, a flow valve is provided between the second control valve and the compressed air source.

[0009] Furthermore, a second filtering mechanism and a third filtering mechanism which are connected in sequence are provided between the second control valve and the vacuum pumping device.

[0010] Furthermore, the compressed air source is connected to the third filtering mechanism.

[0011] Furthermore, the first control valve and the second control valve are butterfly valves.

[0012] Furthermore, the third control valve is a pressure control valve.

[0013] Furthermore, a detection device is provided on the butterfly valve.

[0014] Furthermore, the detection mechanism is a pressure detection mechanism.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model has a simple structure and can form a large shock wave due to the large air flow and pressure when in use. Most of the powder on the filter can be removed each time cleaning, and the cleaning effect is good; it only consumes indoor air and almost no other energy consumption; and the loss to the equipment is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings, which are schematic and should not be construed as limiting the present invention in any way. In the accompanying drawings:

[0018] Figure 1 It is a structural schematic diagram of the process equipment disclosed in the utility model;

[0019] Description of reference numerals:

[0020] 1. First filtering mechanism; 2. Vacuum extraction equipment; 3. External environment of production area; 4. Compressed air source; 5. First control valve; 6. Second control valve; 7. Third control valve; 8. Flow valve; 9. Second filtering mechanism; 10. Third filtering mechanism; 11. Pot body; 12. Detection mechanism. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0022] A dust removal system for a wet granulator, such as Figure 1As shown, it is arranged on the pot body 11, and it includes: a first filtering mechanism 1 arranged on the pot body 11, the first filtering mechanism 1 is connected to the vacuum pumping device 2 and the external environment 3 of the production area respectively, a first control valve 5 is arranged between the external environment 3 of the production area and the pot body 11, and a second control valve 6 is arranged between the vacuum pumping device 2 and the pot body; the first filtering mechanism 1 is also provided with a detection mechanism 12 for detecting the first filtering mechanism 1 and the situation in the pipeline. During the production process, the pot body 11 maintains a negative pressure. At this time, the first control valve 5 is closed, the second control valve 6 is opened, and the vacuum pumping device 2 starts to operate, and the pot body 11 is pumped into a negative pressure; when the first filtering mechanism 1 needs to be cleaned, the second control valve 6 is quickly closed and the first control valve 5 is opened. The negative pressure or vacuum state inside the pot body 11 allows the air in the external environment 3 of the production area to quickly enter the first filtering mechanism 1 through the pipeline, forming a large shock wave, so that the dust on the first filtering mechanism 1 quickly falls off.

[0023] In the present invention, the pot body 11 refers to a reaction pot body of a wet granulator or the like.

[0024] In some specific embodiments, the first filter mechanism 1 is further connected to a compressed air source 4, and a third control valve 7 is provided between the compressed air source 4 and the first filter mechanism 1. The compressed air source 4 can fill the first filter mechanism 1 and the pot body 11 with compressed air to form a large pressure difference, thereby realizing backblowing of dust in the first filter mechanism 1.

[0025] In some specific embodiments, the first filtering mechanism 1, the vacuum pumping device 2, and the compressed air source 4 can be arranged in an ordinary workshop environment; and the external environment 3 of the production area refers to the working environment of the pot body 11, which has higher hygiene requirements.

[0026] In some specific embodiments, the third control valve 7 is located between the compressed air source 4 and the second control valve 6. With such a design, the compressed air source 4 and the vacuum pumping device 2 do not interfere with each other and operate independently.

[0027] In some specific implementations, a flow valve 8 is further provided between the second control valve 6 and the compressed air source 4, and the flow valve 8 is used to control the flow of the compressed air to improve the back-blowing efficiency.

[0028] In some specific embodiments, a second filter mechanism 9 and a third filter mechanism 10 connected in sequence are further provided between the second control valve 6 and the vacuum device 2. The design of the second filter mechanism 9 and the third filter mechanism 10 allows multiple filtering when the dust removal system is running, so that the service life of the vacuum device 2 is not affected.

[0029] In some embodiments, the compressed air source 4 is connected to the third filter mechanism 10. When the dust removal system is running, multiple filtrations are performed to ensure the service life of the compressed air source 4.

[0030] In some specific embodiments, the first control valve 5 and the second control valve 6 are butterfly valves. A detection device may be added to the butterfly valve to monitor the sealing condition of the pipeline to ensure the sealing of the pipeline.

[0031] In some specific embodiments, the third control valve 7 is a pressure control valve, which can adjust the pressure of the compressed air and cooperate with the flow valve 8 to improve the back-blowing effect.

[0032] In some specific embodiments, the detection mechanism 12 is arranged on the first filter mechanism 1 to form an integrated structure with the first filter mechanism 1; it can also be arranged between the first filter mechanism 1 and the first control valve 5 and the second control valve 6; the detection mechanism 12 can be a pressure detection mechanism for detecting the pressure conditions of the pipeline and the first filter mechanism 1.

[0033] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A dust removal system for a wet granulator, which is arranged on a pot body (11), characterized in that: include: A first filtering mechanism (1) is arranged on a pot body (11), the first filtering mechanism (1) is respectively connected to a vacuum pumping device (2) and an external environment (3) of a production area, a first control valve (5) is arranged between the external environment (3) of the production area and the pot body (11), and a second control valve (6) is arranged between the vacuum pumping device (2) and the pot body; a detection mechanism (12) is also arranged on the first filtering mechanism (1).

2. The dust removal system for a wet granulator according to claim 1, characterized in that: The first filtering mechanism (1) is also connected to a compressed air source (4), and a third control valve (7) is provided between the compressed air source (4) and the first filtering mechanism (1).

3. The dust removal system for a wet granulator according to claim 2, characterized in that: The third control valve (7) is located between the compressed air source (4) and the second control valve (6).

4. The dust removal system for a wet granulator according to claim 3, characterized in that: A flow valve (8) is also provided between the second control valve (6) and the compressed air source (4).

5. The dust removal system for a wet granulator according to claim 2, characterized in that: A second filtering mechanism (9) and a third filtering mechanism (10) which are connected in sequence are also provided between the second control valve (6) and the vacuum pumping device (2).

6. The dust removal system for a wet granulator according to claim 5, characterized in that: The compressed air source (4) is in communication with the third filtering mechanism (10).

7. The dust removal system for a wet granulator according to any one of claims 1 to 6, characterized in that: The first control valve (5) and the second control valve (6) are butterfly valves.

8. The dust removal system for a wet granulator according to any one of claims 2 to 6, characterized in that: The third control valve (7) is a pressure control valve.

9. The dust removal system for a wet granulator according to claim 7, characterized in that: The butterfly valve is also provided with a detection device.

10. The dust removal system for a wet granulator according to claim 1, characterized in that: The detection mechanism (12) is a pressure detection mechanism.

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