A two-stage dust removal system for a perlite expansion furnace

Abstract

This utility model relates to the field of dust removal technology for expansion furnaces, and discloses a two-stage dust removal system for a perlite expansion furnace. The system includes a shell and a support frame. A gas tank is fixedly installed on the side of the shell, and a compressed air pipe is fixedly installed on the top of the shell. An electromagnetic pulse valve is fixedly connected to the side of the compressed air pipe. A perforated plate is fixedly installed inside the shell, and a filter bag frame is fixedly installed at the bottom of the perforated plate. A filter bag body is fitted onto the surface of the filter bag frame. This utility model effectively solves the problems of poor dust removal stability, poor dust removal effect, and low dust removal efficiency. By combining multi-pipe dust removal with bag filter dust removal to form a two-stage dust removal system, it ensures full recovery of micro-dust particles and waste. The two-stage dust removal systems work together to ensure a more stable dust collection process after perlite processing, avoiding dust pollution in the workshop, thereby improving the efficiency of perlite dust treatment, ensuring energy conservation and environmental protection during production, and avoiding secondary dust pollution that could cause safety hazards.

Description

Technical Field

[0001] This utility model belongs to the field of dust removal technology for expansion furnaces, specifically relating to a two-stage dust removal system for a perlite expansion furnace. Background Technology

[0002] Perlite is a glassy rock formed from acidic lava erupted from volcanoes and rapidly cooled. It gets its name from the arc-shaped cracks and pearly fissures created by the cooling process, and contains approximately 2-6% water. When acidic lava erupts to the Earth's surface, it cools and solidifies, storing a large amount of water vapor within the glass. When it is suddenly heated to a softening temperature during roasting, the water vapor in the glass generates significant pressure, causing the perlite particles to expand rapidly. When the expanded particles cool below their softening temperature, they solidify into a hollow structure, forming porous expanded perlite with a wide range of applications.

[0003] The dust generated during the perlite expansion process contains a certain amount of perlite particles. By using a two-stage dust removal system to collect the dust in stages, the waste can be recycled and reused, improving resource utilization and conforming to the environmental protection concept of energy conservation and emission reduction. During the perlite expansion process, dust can easily mix into the expanded perlite, affecting the purity and quality of the product. The dust removal system can remove the dust more effectively.

[0004] During the expansion of perlite, a certain amount of dust is generated. Generally, dust treatment institutions collect the dust into the ash hopper of the bag filter. When a certain amount of dust accumulates in the ash hopper, the valve at the bottom of the ash hopper is opened to discharge the dust. However, dust removal alone may result in poor dust removal stability and effect, low dust removal efficiency, and the process may easily cause dust to be stirred up and pollute the workshop. Utility Model Content

[0005] In view of the above situation and to overcome the defects of the existing technology, this utility model provides a two-stage dust removal system for a perlite expansion furnace. This two-stage dust removal system for a perlite expansion furnace has a more stable dust removal process and higher dust removal efficiency, and is environmentally friendly and efficient.

[0006] A two-stage dust removal system for a perlite expansion furnace includes a shell and a support. A gas tank is fixedly installed on the side of the shell, and a compressed air pipe is fixedly installed on the top of the shell. An electromagnetic pulse valve is fixedly connected to the side of the compressed air pipe. A perforated plate is fixedly installed inside the shell, and a filter bag frame is fixedly installed at the bottom of the perforated plate. A filter bag body is fitted onto the surface of the filter bag frame. A multi-tube dust collector is provided on one side of the shell, and a connecting pipe is fixedly installed between the multi-tube dust collector and the shell. A filtration and dust removal mechanism is provided inside the connecting pipe.

[0007] Preferably, the filtration and dust removal mechanism includes a filter plate, a high-pressure jet pipe, and a dust collection box. The filter plate is vertically fixed inside the connecting pipe. The high-pressure jet pipe is fixedly connected to the top of the connecting pipe, with its outlet end passing through the inside of the connecting pipe and vertically corresponding to the side of the filter plate. The dust collection box is fixedly installed at the bottom of the connecting pipe.

[0008] Preferably, one end of the housing has an air inlet and the other end of the housing has an air outlet.

[0009] Preferably, an ash hopper is welded and fixed to the bottom of the shell, an observation door is fixedly installed on the side of the ash hopper, and a discharge port is opened at the bottom of the ash hopper.

[0010] Preferably, an inspection door is fixedly installed on the top of the housing, and a guardrail is fixedly installed on the top side edge of the housing.

[0011] Preferably, a cylinder is fixedly installed on the top of the housing, and one end of the cylinder is in communication with the interior of the housing.

[0012] Preferably, the bottom of the housing is fixedly installed to the top of the bracket by bolts.

[0013] The beneficial effects of the above technical solution are as follows:

[0014] This perlite expansion furnace's secondary dust removal system combines multi-pipe dust collection with baghouse dust collection to ensure full recovery of micro-dust particles. The two dust collection systems work together to ensure a more stable dust collection process after perlite processing, preventing dust pollution in the workshop and improving the efficiency of perlite dust handling. This ensures energy conservation and environmental protection during production, and avoids secondary dust pollution that could pose safety hazards. Expanded perlite is characterized by its large volume, strong water absorption, and tendency to adhere to the filter bag body, which can lead to filter mesh blockage and affect filtration efficiency. The secondary dust removal system ensures stable operation of the dust removal system, and the filter cleaning mechanism further improves the dust removal effect and ensures smooth operation of the dust removal system, making it more convenient to use in the production of expanded perlite. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0016] Figure 2 This is a partial cross-sectional view of the connecting pipe of this utility model;

[0017] Figure 3 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0018] Figure 4 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 5 This is a top view of the structure of this utility model.

[0020] In the diagram: 1. Shell; 2. Air tank; 3. Air outlet; 4. Dust hopper; 5. Observation door; 6. Feed outlet; 7. Filter bag body; 8. Filter bag frame; 9. Perforated plate; 10. Guardrail; 11. Air inlet; 12. Inspection door; 13. Cylinder; 14. Electromagnetic pulse valve; 15. Compressed air pipe; 16. Support; 17. Multi-tube dust collector; 18. Connecting pipe; 19. Filter plate; 20. High-pressure jet pipe; 21. Dust collection box. Detailed Implementation

[0021] The foregoing and other technical contents, features and effects of this utility model are described in conjunction with the appendix below. Figures 1 to 5 The embodiments are described in detail below.

[0022] This embodiment provides a two-stage dust removal system for a perlite expansion furnace, as shown in the attached diagram. It includes a shell 1 and a support 16. The bottom of the shell 1 is fixedly installed to the top of the support 16 by bolts. One end of the shell 1 has an air inlet 11, and the other end has an air outlet 3. An inspection door 12 is fixedly installed on the top of the shell 1, and a guardrail 10 is fixedly installed along the top side edge of the shell 1. The dust concentration at the outlet is less than 10 mg / m³. 3 The bracket 16 is assembled with the shell 1 by bolts, thereby ensuring the stability of the dust removal process inside the shell 1. The inspection door 12 on the top of the shell 1 facilitates maintenance work inside the shell 1, while the guardrail 10 ensures safety during the maintenance process.

[0023] A gas tank 2 is fixedly installed on the side of the housing 1, and a compressed air pipe 15 is fixedly installed on the top of the housing 1. An electromagnetic pulse valve 14 is fixedly connected to the side of the compressed air pipe 15. A cylinder 13 is fixedly installed on the top of the housing 1. One end of the cylinder 13 is connected to the inside of the housing 1. Multiple sets of cylinders 13 and electromagnetic pulse valves 14 are arranged along the compressed air pipe 15. The filtration velocity is less than 0.8 m / min. The gas is introduced through the air inlet 11 at one end of the housing 1. The gas tank 2, together with multiple sets of compressed air pipes 15, receives the gas. At the same time, the electromagnetic pulse valve 14 performs preliminary dust removal. After simple treatment, the gas is discharged into the inside of the housing 1 for further processing in conjunction with the cylinder 13.

[0024] A multi-tube dust collector 17 is provided on one side of the housing 1, and a connecting pipe 18 is fixedly installed between the multi-tube dust collector 17 and the housing 1. A filtration and cleaning mechanism is installed inside the connecting pipe 18, including a filter plate 19, a high-pressure jet pipe 20, and a dust collection box 21. The filter plate 19 is vertically fixedly installed inside the connecting pipe 18. The high-pressure jet pipe 20 is fixedly connected to the top of the connecting pipe 18, with its outlet end passing through the inside of the connecting pipe 18 and vertically corresponding to the side of the filter plate 18. The dust collection box 21 is fixedly installed at the bottom of the connecting pipe 18. The dust exiting the multi-tube dust collector 17... The airflow passes through the filter plate 19, filtering out some large particles of impurities. At the same time, the high-pressure jet pipe 20 is connected to the external high-pressure jet equipment, thereby intermittently spraying some gas to clean the sides of the filter plate 19. This allows the impurities on the filter plate 19 to be blown into the dust collection box 21, ensuring the filtration and ventilation effects of the filter plate 19 and improving the dust removal effect. Expanded perlite has the characteristics of large volume, strong water absorption, and easy adhesion to the filter bag body 7, which can cause the filter mesh to become clogged and affect the filtration efficiency. The secondary dust removal system can ensure the stable operation of the dust removal system.

[0025] A perforated plate 9 is fixedly installed inside the housing 1. A filter bag frame 8 is fixedly installed at the bottom of the perforated plate 9. A filter bag body 7 is fitted onto the surface of the filter bag frame 8. A dust hopper 4 is welded and fixed to the bottom of the housing 1. An observation door 5 is fixedly installed on the side of the dust hopper 4. A discharge port 6 is opened at the bottom of the dust hopper 4. There are 504 filter bag frames 8 and filter bag bodies 7. The gas, after simple treatment, passes through the perforated plate 9 inside the housing 1 and enters the filtration device composed of the filter bag frames 8 and filter bag bodies 7 for further filtration. At the same time, the filtered dust is discharged into the dust hopper 4. The material is collected and observed through observation door 5. Once it reaches a certain level, it is discharged through discharge port 6, and the filtered gas is discharged through air outlet 3, thus completing the bag filter dust removal process. The bag filter dust removal system is composed of multiple pipe dust removal systems and bag filter dust removal systems to ensure that micro-dust particles are fully recovered. The two dust removal systems work together to ensure that the dust collection process generated after perlite processing is more stable, avoid dust pollution in the workshop, improve the efficiency of perlite dust treatment, ensure energy conservation and environmental protection in the production process, and avoid secondary dust pollution that may cause safety hazards.

[0026] In summary, the operating steps of this two-stage dust removal system for the perlite expansion furnace are as follows:

[0027] 1. The bracket 16 is assembled with the housing 1 by bolts, thereby ensuring the stability of the dust removal process inside the housing 1. The inspection door 12 on the top of the housing 1 facilitates maintenance work inside the housing 1, while the guardrail 10 ensures safety during the maintenance process.

[0028] 2. The airflow from the multi-tube dust collector 17 passes through the filter plate 19, filtering out some large particles of impurities. At the same time, the high-pressure jet pipe 20 is connected to the external high-pressure jet equipment, so that some gas is intermittently sprayed out to clean the side of the filter plate 19. This allows the impurities on the filter plate 19 to be blown into the dust collection box 21, ensuring the filtration and ventilation effect of the filter plate 19 and improving the dust removal effect.

[0029] 3. Air is introduced through the air inlet 11 at one end of the housing 1, and the air tank 2 is equipped with multiple sets of compressed air pipes 15 to receive the gas. At the same time, the electromagnetic pulse valve 14 performs preliminary dust removal treatment. After the simple treatment, the gas is discharged into the housing 1 for further treatment in conjunction with the cylinder 13. The gas after the simple treatment passes through the perforated plate 9 inside the housing 1 and enters the filter device composed of the filter bag frame 8 and the filter bag body 7 for further filtration. At the same time, the filtered dust is collected in the ash hopper 4, and the internal situation is observed through the observation door 5. When it reaches a certain level, it is discharged through the discharge port 6, and the filtered gas is discharged through the air outlet 3, thus completing the bag dust removal process.

[0030] The above description is only for illustrating the present utility model. It should be understood that the present utility model is not limited to the above embodiments, and various modifications that conform to the concept of the present utility model are within the protection scope of the present utility model.

Claims

1. A two-stage dust removal system for a perlite expansion furnace, comprising a shell (1) and a support (16), characterized in that: A gas tank (2) is fixedly installed on the side of the housing (1), a compressed air pipe (15) is fixedly installed on the top of the housing (1), an electromagnetic pulse valve (14) is fixedly connected to the side of the compressed air pipe (15), a perforated plate (9) is fixedly installed inside the housing (1), a filter bag frame (8) is fixedly installed at the bottom of the perforated plate (9), a filter bag body (7) is fitted on the surface of the filter bag frame (8), a multi-tube dust collector (17) is provided on one side of the housing (1), and a connecting pipe (18) is fixedly installed between the multi-tube dust collector (17) and the housing (1), and a filtration and dust removal mechanism is provided inside the connecting pipe (18).

2. The two-stage dust removal system for a perlite expansion furnace according to claim 1, characterized in that: The filtration and dust removal mechanism includes a filter plate (19), a high-pressure jet pipe (20), and a dust collection box (21). The filter plate (19) is vertically fixed inside the connecting pipe (18). The high-pressure jet pipe (20) is fixedly connected to the top of the connecting pipe (18), and its outlet end passes through the inside of the connecting pipe (18) and is vertically corresponding to the side of the filter plate (19). The dust collection box (21) is fixedly installed at the bottom of the connecting pipe (18).

3. The secondary dust removal system for a perlite expansion furnace according to claim 2, characterized in that: An air inlet (11) is provided at one end of the housing (1), and an air outlet (3) is provided at the other end of the housing (1).

4. The secondary dust removal system for a perlite expansion furnace according to claim 3, characterized in that: A hopper (4) is welded and fixed to the bottom of the shell (1), an observation door (5) is fixedly installed on the side of the hopper (4), and a discharge port (6) is opened at the bottom of the hopper (4).

5. The secondary dust removal system for a perlite expansion furnace according to claim 4, characterized in that: An inspection door (12) is fixedly installed on the top of the housing (1), and a guardrail (10) is fixedly installed on the top side edge of the housing (1).

6. The secondary dust removal system for a perlite expansion furnace according to claim 5, characterized in that: A cylinder (13) is fixedly installed on the top of the housing (1), and one end of the cylinder (13) is connected to the interior of the housing (1).

7. The secondary dust removal system for a perlite expansion furnace according to claim 1, characterized in that: The bottom of the housing (1) is fixed to the top of the bracket (16) by bolts.

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