Dust removal system for stock bin

The dust removal system, which combines a cyclone separator and an exhaust fan with a pulse jet filter dust collector, solved the problem of decreased silo sealing performance, improved material recovery rate and dust control, reduced production costs, and ensured equipment and environmental safety.

CN223887685UActive Publication Date: 2026-02-10上海紫东新型材料科技有限公司 +1
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Patent Information

Application Number
CN202520322847.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-26
Publication Date
2026-02-10
Estimated Expiration
2035-02-26

AI Technical Summary

Technical Problem

During the crushing process, the existing silos experience a decrease in sealing performance due to dust accumulation on the filter bags, which increases gas pressure and may damage the silo seal, causing dust escape and environmental pollution.

Method used

A cyclone separator is used in conjunction with an exhaust fan and a dust removal mechanism, connected through a dust removal pipeline. The exhaust fan generates negative pressure to separate and process the dust-containing gas, and a pulse jet filter cartridge dust collector is used for further purification to prevent dust from escaping.

Benefits of technology

It improves material recovery rate, reduces costs, ensures stable pressure in the silo, prevents dust escape, and protects equipment and environmental safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a stock bin dust removal system, which comprises a plurality of crushers, cyclone separators and a stock bin, the number of the cyclone separators corresponds to that of the crushers, each crusher is connected with an inlet at the side part of the corresponding cyclone separator through a fan and a feeding pipeline, a discharge port at the bottom of each cyclone separator is connected with the top of the stock bin, and the top of the stock bin is provided with a discharge port. The dust removal device further comprises an air exhaust fan and a dust removal mechanism, the dust removal mechanism is connected with the cyclone separator through a dust removal pipeline, and the air exhaust fan is connected with the dust removal mechanism through an exhaust pipeline. According to the utility model, the dust removal mechanism and the exhaust fan are additionally arranged to further treat the separated gas containing dust and materials with smaller particle sizes, so that the material recovery rate is improved, the cost is reduced, the stability of the pressure in the stock bin is ensured, the damage to the sealing performance of the stock bin due to overhigh pressure is prevented, and the dust is prevented from escaping.
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Description

Technical Field

[0001] This utility model relates to the field of nylon production technology, specifically to a dust removal system for a silo. Background Technology

[0002] like Figure 2 As shown, in the waste crushing and recycling process: firstly, the waste is crushed by crusher 1. Then, airflow is generated by blower 2 and sent to the cyclone separator 4 through feeding pipe 3. Cyclone separator 4 separates the material from the dust. The material falls into the hopper 5 by its own gravity, while the gas containing dust enters the filter bag 401 installed at the air inlet at the top of cyclone separator 4 for filtration. The filtered clean air then passes through the filter bag 401 and enters the atmosphere directly.

[0003] However, as the production process continues, a large amount of dust gradually accumulates on the filter bag 401, clogging the filter pores and restricting clean air from passing through it into the atmosphere. This restriction causes a large amount of dust-containing gas to accumulate inside the hopper 5, gradually increasing the internal pressure. Since the hopper 5 is constructed from multiple steel plates, when the internal pressure increases to a certain level, it will compromise the sealing performance of the steel plate joints, creating gaps. This allows the dust-containing gas to escape from the gaps in the hopper 5, causing environmental pollution. Utility Model Content

[0004] Based on this, and in response to the above problems, this utility model provides a dust removal system for silos.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A silo dust removal system includes multiple crushers, cyclone separators, and silos. The number of cyclone separators corresponds to the number of crushers. Each crusher is connected to the inlet on the side of the corresponding cyclone separator via a fan and a feeding pipe. The discharge ports at the bottom of the cyclone separators are all connected to the top of the silo. The system also includes an exhaust fan and a dust removal mechanism. The dust removal mechanism is connected to the cyclone separators via a dust removal pipe, and the exhaust fan is connected to the dust removal mechanism via an exhaust pipe.

[0007] The above technical solution involves crushing waste materials using a pulverizer and separating the materials from dust using a cyclone separator. Further processing of the separated gas containing dust and small particles by adding a dust removal mechanism and an exhaust fan not only improves material recovery rate and reduces costs but also ensures stable pressure within the silo, preventing damage to the silo's sealing performance due to excessive pressure and stopping dust escape.

[0008] In a specific embodiment of this utility model: the dust removal mechanism includes a collection bin and a dust collector located above the collection bin.

[0009] In a specific embodiment of this utility model: the dust collector is a pulse jet cartridge dust collector. Pulse jet cartridge dust collectors have the advantages of high-efficiency purification, compact structure, and easy maintenance.

[0010] In a specific embodiment of this utility model: an explosion-proof valve is connected to the dust removal pipeline. The use of an explosion-proof valve serves to prevent the spread of explosions and protect the safety of equipment and personnel.

[0011] In summary, this invention uses a pulverizer to crush waste materials and a cyclone separator to separate the materials from the dust. Furthermore, by adding a dust removal mechanism and an exhaust fan to further treat the separated gas containing dust and small particles, not only is the material recovery rate improved and costs reduced, but the pressure inside the silo is also ensured to remain stable, preventing damage to the silo's sealing performance due to excessive pressure and stopping dust escape. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the structure of a dust removal system for a silo according to this utility model;

[0014] Figure 2 This illustrates an existing dust removal system for silos. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1 As shown, this utility model is a dust removal system for a silo, comprising three crushers 10, three cyclone separators 12, and a silo 14. Each crusher 10 is connected to the inlet 121 on the side of the cyclone separator 12 via a fan 101 and a feeding pipe 102. The discharge ports 122 at the bottom of all cyclone separators 12 are connected to the silo 14. In this embodiment, the fan 101 is a Roots blower.

[0017] It also includes an exhaust fan 20 and a dust removal mechanism 21. The dust removal mechanism 21 includes a collection bin 22 and a dust collector 23 located above the collection bin 22. The air inlet of the dust collector 23 is connected to the air outlet 123 at the top of all cyclone separators 12 via a dust removal pipe 24. The bottom of the collection bin 22 has a discharge valve 25. The exhaust fan 20 is connected to the air outlet of the dust collector 23 via an exhaust pipe 26. Thus, under the negative pressure generated by the exhaust fan, the gas containing dust separated by the cyclone separators 12 enters the dust collector 23 through the air outlet 123 of the cyclone separators 12 and the dust removal pipe 24. Inside the dust collector 23, smaller particles are intercepted by the filter element and fall outside the bin via the discharge valve 25 at the bottom of the collection bin 22, while the dust is collected by the filter element. The clean air is discharged directly into the atmosphere through the exhaust pipe 26 and the exhaust outlet of the exhaust fan 20. This ensures stable pressure inside the silo, prevents damage to the silo's sealing performance due to excessive pressure, and stops dust from escaping.

[0018] In this embodiment, an explosion-proof valve 27 is connected to the dust removal pipeline 24. The use of an explosion-proof valve serves to prevent the spread of explosions and protect the safety of equipment and personnel.

[0019] In this embodiment, the dust collector 21 adopts a pulse jet cartridge dust collector. Pulse jet cartridge dust collectors have the advantages of high-efficiency purification, compact structure, and easy maintenance. Using a pulse jet cartridge dust collector allows for periodic automatic cleaning, removing dust adhering to the filter element through pulse jet cleaning, thereby improving airflow efficiency.

[0020] During production, the pulverizer 10 is first started to pulverize the waste material. Three pulverizers 10 can be operated simultaneously, or only one or two pulverizers 10 can be operated, with the remaining pulverizers 10 on standby. The pulverized material is fed into the cyclone separator 12 via the airflow generated by the blower 101 and the feeding pipe 102. Inside the cyclone separator 12, the material and dust are effectively separated, and the material falls into the hopper 14 due to its own gravity. The gas containing dust and smaller particles is drawn through the air outlet 123 of the cyclone separator 12 and into the dust collector 23 via the dust collection pipe 24 under the negative pressure generated by the exhaust fan. Smaller particles are intercepted by the filter element in the dust collector 23 and fall out of the hopper via the discharge valve 25 at the bottom of the collection hopper 22. The dust is collected by the filter element, while the clean air is discharged directly into the atmosphere through the exhaust pipe 26 and the exhaust port of the exhaust fan 20.

[0021] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A dust collection system for a silo, comprising multiple crushers, cyclone separators, and a silo, wherein the number of cyclone separators corresponds to the number of crushers, each crusher is connected to the inlet on the side of the corresponding cyclone separator via a fan and a feeding pipeline, and the discharge port at the bottom of each cyclone separator is connected to the top of the silo, characterized in that... It also includes an exhaust fan and a dust removal mechanism, wherein the dust removal mechanism is connected to the cyclone separator through a dust removal pipeline, and the exhaust fan is connected to the dust removal mechanism through an exhaust pipeline.

2. The dust removal system for silos according to claim 1, characterized in that, The dust removal mechanism includes a collection bin and a dust collector located above the collection bin.

3. The dust removal system for silos according to claim 2, characterized in that, The dust collector is a pulse jet cartridge dust collector.

4. The dust removal system for silos according to claim 1, characterized in that, An explosion-proof valve is connected to the dust removal pipeline.