Granule dust removal system with two-stage dust removal function
By designing a secondary dust removal system during the pellet production process, and using the backblowing device and the air outlet duct for dust separation, the mixing problem between powder and pellets is solved, significantly reducing the dust content, and improving product quality and operating environment safety , improves the efficiency of raw materials utilization.
Patent Information
- Application Number
- CN202420365904.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-28
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-02-28
AI Technical Summary
The powder produced by polycarbonate pellets during the production process is inevitably mixed with the finished product, affecting the quality and stability of the product, and posing a threat to the health of the operators. The existing dust collector cannot completely solve the problem of mixing dust and pellets.
A secondary dust removal pellet dust removal system is designed, including a dust removal chamber, a dust removal fan and a pellet silo. By setting up a first back-blowing device and a second back-blowing device, the air outlet duct and the venting duct are used to separate the dust. and recycling, nitrogen is used as the backblowing gas, and an oxygen content monitoring device is equipped to prevent dust explosion.
It significantly reduces the dust content of finished pellets, reduces occupational disease hazard factors, improves air cleanliness and raw material utilization efficiency, and improves product performance and corporate benefits.
Smart Images
Figure CN222201230U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of chemical equipment, in particular to a granular material dust removal system with two-level dust removal. Background Art
[0002] At present, a certain amount of powder is generated during the extrusion and transportation of polycarbonate pellets during the production process. These powders will inevitably enter the finished product packaging silo and enter the packaging bag together with the pellets during the packaging process, resulting in powder mixed into the finished product. This mixed state has a significant impact on subsequent product modification, injection molding and other process links, and may cause problems such as unstable product quality and reduced production efficiency.
[0003] In addition, during the packaging process, some dust may be emitted from the packaging bags, posing a threat to the health of on-site workers. Long-term inhalation of these dusts may cause workers to develop respiratory diseases, pneumoconiosis and other occupational diseases, which poses a potential risk of occupational diseases.
[0004] To address this problem, the current technical measure is to add a dust collector on top of each pellet silo. These dust collectors are equipped with filter bags that can effectively absorb dust in the air. The bottom of the dust collector is connected to the silo to ensure that the air discharged into the atmosphere is clean. However, although this dust collector reduces dust pollution to the atmosphere to a certain extent, it cannot completely solve the problem of dust mixing with pellets.
[0005] Specifically, the dust adsorbed on the filter bag will re-enter the silo and mix with the pellets after passing through the backflush system. This means that despite the dust removal measures, the dust will inevitably be mixed into the finished product, seriously affecting the quality of polycarbonate products.
[0006] In order to completely solve this problem, it may be necessary to further research and develop more efficient dust removal and separation technologies to ensure that polycarbonate pellets can be completely avoided from mixing with dust during the production process, thereby improving the quality and stability of the product while protecting the health of operators. Utility Model Content
[0007] Aiming at the shortcomings of the existing technology, the invention solves the problem that a lot of powder is generated during the extrusion and transportation of pellets. These powders enter the finished product silo and the packaging bag with the pellets, which has a great impact on the subsequent modification and injection molding of customers, and the dust may cause occupational hazards. In addition, the invention can ensure the cleanliness of the air used to transport the pellets and their subsequent utilization.
[0008] The utility model provides a two-stage dust removal granular material dust removal system, comprising a dust removal bin, a dust removal fan and a granular material bin, an air outlet duct is arranged on the side of the dust removal bin to connect with the dust removal fan, a first back-blowing device is arranged at the bottom of the dust removal bin, and a second back-blowing device is arranged on the top side.
[0009] As a preferred solution, the position of the second back-blowing device corresponds to the position of the air outlet duct.
[0010] Furthermore, a discharge port is provided at the bottom of the dust removal bin.
[0011] Furthermore, a feed port is provided on the side of the middle portion of the dust removal bin to communicate with the pellet bin.
[0012] Furthermore, the dust removal fan is provided with a venting duct for venting air.
[0013] As a preferred solution, the first backflush device is provided with an oxygen content monitoring device.
[0014] As a preferred solution, the first backflush device and the second backflush device use nitrogen as the backflush gas.
[0015] The beneficial effects of the utility model are:
[0016] 1. The utility model is provided with a two-stage dust removal device. The first-stage dust removal device can separate the powder from the granules, significantly reduce the dust content of the finished granules, greatly reduce the powder content in the granules, reduce the generation of occupational disease hazards, and improve product performance.
[0017] 2. The utility model is provided with a two-stage dust removal device. The second-stage dust removal device can make the air for transporting pellets no longer contain dust. The dust-free air can be further recycled, thereby improving the utilization efficiency of raw materials and significantly improving the benefits of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to specific embodiments and in conjunction with the accompanying drawings.
[0019] Figure 1 It is a structural schematic diagram of the utility model.
[0020] The reference numerals in the accompanying drawings are:
[0021] 1. Dust removal bin, 11. Discharge port, 12. Feed port, 13. Air outlet duct, 2. Dust removal fan, 21. Vent duct, 3. First backflush device, 31. Oxygen content monitoring device, 4. Second backflush device, 5. Granular material bin. DETAILED DESCRIPTION
[0022] To illustrate the features of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments.
[0023] Example:
[0024] refer to Figure 1 The present embodiment provides a pellet dust removal system with two-stage dust removal to solve the problem that a lot of powder is generated during the extrusion and transportation of pellets. These powders enter the finished product silo with the pellets and the packaging bag with the pellets, which has a great impact on the subsequent modification and injection molding of customers, and the dust may cause occupational hazards. The present embodiment includes a dust removal bin 1, a dust removal fan 2 and a pellet silo 5, wherein an air outlet duct 13 is arranged on the side of the dust removal bin 1 to connect to the dust removal fan 2, and the pellets are subjected to two-stage dust removal in the dust removal bin 1 and the dust removal fan 2 respectively. In order to separate the pellets from the dust, a first back-blowing device 3 is arranged at the bottom of the dust removal bin 1 to blow the dust mixed with the pellets into the air, and a second back-blowing device 4 is arranged on the top side. The position of the second back-blowing device 4 corresponds to the position of the air outlet duct 13, and the blown dust can be blown into the air outlet duct 13.
[0025] The dust removal bin 1 is provided with a discharge port 11 at the bottom, and a feed port 12 is provided at the middle side of the dust removal bin 1 to communicate with the pellet bin 5. The discharge port 11 and the feed port 12 are respectively provided with corresponding control valves to control the inlet and outlet of pellets.
[0026] The dust removal fan 2 is provided with a venting duct 21 for venting air, and the dust-removed air is passed into a downstream system that needs air, so as to realize the recycling of air.
[0027] In addition, the first backflush device 3 is provided with an oxygen content monitoring device 31 to prevent dust from exploding when dust encounters too much oxygen.
[0028] The first back-flushing device 3 and the second back-flushing device 4 of the present embodiment use nitrogen as the back-flushing gas. Nitrogen, as a relatively stable gas, can safely accomplish the transportation task.
[0029] The above embodiments and drawings are only used to illustrate the technical solution of the utility model, and are not intended to limit the utility model. The utility model is described in detail with reference to the preferred embodiments. It should be understood by ordinary technicians in this field that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the utility model do not deviate from the purpose of the utility model and should also fall within the scope of protection of the claims of the utility model. Other related technical structures not fully disclosed in the utility model are prior art in the field.
Claims
1. A two-stage dust removal system for pellets, comprising a dust removal bin (1), a dust removal fan (2) and a pellet bin (5), wherein an air outlet duct (13) is arranged on a side of the dust removal bin (1) and connected to the dust removal fan (2). Features: The bottom of the dust removal bin (1) is provided with a first back-flush device (3), and the top side is provided with a second back-flush device (4).
2. A granular material dust removal system with two-stage dust removal according to claim 1, Features: The position of the second back-blowing device (4) corresponds to the position of the air outlet duct (13).
3. A granular material dust removal system with two-stage dust removal according to claim 1, Features: The bottom of the dust removal bin (1) is provided with a discharge port (11).
4. A two-stage dust removal system for granular materials according to claim 1, Features: A feed port (12) is provided on the side of the middle portion of the dust removal bin (1) and is connected to the pellet bin (5).
5. A granular material dust removal system with two-stage dust removal according to claim 1, Features: The dust removal fan (2) is provided with a discharge duct (21) for discharging air.
6. A two-stage dedusting system for granular materials according to claim 1, Features: The first backflush device (3) is provided with an oxygen content monitoring device (31).
7. A two-stage dedusting system for granular materials according to claim 1, Features: The first backflush device (3) and the second backflush device (4) use nitrogen as the backflush gas.