Dust removal device and dust removal process for wood industry

Abstract

The invention relates to a dust removal device and a dust removal method for wood industry, which are used for collecting wood chips, wood shavings and sawdust. The device mainly has three functions of air and waste separation, material evacuation and air dust removal. When the conveyed air passes through the bent grid, wood chips and saw dust are separated from the air; conveying air penetrating through the grating is dedusted by the tubular bag type filter and is pumped out by an external fan; wood chips and saw dust are discharged into an external collecting device (a tilting cart, a compacting machine, a packaging machine and the like) through a closed unloader; dust generated in the transportation process enters the dust removal box body through the separation grid, the dust is filtered through the filter bag, clean air is discharged out of the dust remover, the pulse valve controls and cleans the filter bag at set intervals, in the operation process, compressed air is injected to enable the filter to be smooth, and the collected dust and waste are extracted by the unloader through the shared hopper.

Description

Technical Field

[0001] The invention relates to a dust removal device, in particular to a wood industry dust removal device and a dust removal process with three functions of separating air and waste materials, evacuating materials and removing air dust. Background Art

[0002] The wood industry refers to a series of industries that use wood as raw materials and engage in logging, processing, production, transportation, and sales. With the development of science and technology and the improvement of people's living standards, furniture has gradually entered people's lives. Furniture refers to the essential equipment and facilities for humans to maintain normal life, engage in production practices, and carry out social activities. Furniture has also been continuously developing and innovating with the times. Today, there are many categories, different materials, complete varieties, and different uses. It is an important foundation for establishing a working and living space, and wooden furniture is an important one of them. When wooden furniture is produced, it needs to go through multiple processes such as cutting and polishing. When processing wood, a lot of dust and sawdust will be generated. Summary of the invention

[0003] In view of the above problems, the main purpose of the present invention is to provide a wood industry dust removal device and dust removal process with three functions of separating air and waste, evacuating materials and removing air dust.

[0004] The present invention solves the above technical problems through the following scheme: a wood industry dust removal device, the wood industry dust removal device comprising: a box body (100), a blowing assembly (10), a separation cabin (20), a material receiving hopper (50), a support assembly 60), a discharge rotary valve (70), a filter chamber (80), a top cover (6), and an air + material inlet plate (5);

[0005] The top of the box body (100) is used to replace the filter bag. The top of the box body (100) is installed with a top cover (6).

[0006] The air blowing assembly (10) is located on one side of the separation cabin (20) on the box body (100);

[0007] The separation cabin (20) and the filter bag assembly (80) are both located in the box body (100), and the separation cabin (20) and the filter bag assembly (80) are located at the same horizontal position.

[0008] The material in the mixture of air and material blown into the separation cabin (20) enters the material receiving hopper (50);

[0009] The material receiving hopper (50) is fixed below the box body (100); a material discharging rotary valve (70) is fixed below the material receiving hopper (50);

[0010] A separation grid (21) is provided in the separation cabin (20);

[0011] After the dusty air and waste enter the separation cabin (20), the dusty air passes through the separation grille (21), while the waste cannot pass through, and enters the material receiving hopper (50) below. The lower opening of the lower hopper (50) is connected to a rotary valve (70), and the rotary valve (70) is used to transfer the waste and dust;

[0012] The dusty air passes through the separation grille (21) and enters the filter chamber (80). After passing through the filter bag (83) of the filter chamber (80), the dust is adsorbed on the surface of the filter bag (83), and the filtered clean air is transported out through the clean air outlet plate.

[0013] In a specific implementation example of the present invention, a sealing ring (10) is installed at the connection with the box body (100), and a bolt is arranged on the sealing ring (10), which is connected to the bolt of the box body (100) through a grounding wire (011).

[0014] In a specific embodiment of the present invention, a sampler (19) is provided between the air+material inlet plate (05) and the clean air outlet plate (04).

[0015] In a specific implementation example of the present invention, the material receiving hopper (50) includes an upper hopper (51) and a lower hopper (52), which are fixed together by bolt connection or welding.

[0016] In a specific implementation example of the present invention, the support assembly (60) is installed below the box body (100) and connected to the upper hopper (51) and the box body (100). The support assembly (60) includes a support frame (61), a support leg L plate (62) and a base (63). The base plate (63) is welded to the support frame (61), and the support leg L plate (62) is fixed to the support frame (61) and the inner side of the hopper connecting hopper (50) by bolts.

[0017] A dust removal process using the above-mentioned wood industry dust removal device, the dust removal process comprises the following steps:

[0018] Step 1, waste materials and air enter the separation cabin (20) from the air + material inlet plate (5), and the separation plate (21) separates the waste materials and dusty air;

[0019] Step 2: The waste material falls due to gravity, passes through the material receiving bucket (50), enters the rotary valve (71), and is compressed and discharged;

[0020] Step 3, dusty air passes through the separation plate (21) under negative pressure, and after being filtered by the filter bag (83), the dust adheres to the surface of the filter bag (83), and the clean air is discharged through the clean air outlet plate (04);

[0021] Step 4: After working for a certain period of time, the compressed air storage tank (11) fixed on the air + material inlet plate (05) is connected to the air distribution pipe (13), controlled by the pilot valve (31) and the pulse valve (15), and connected to the exhaust nozzle (12), corresponding to the lower filter bag opening, using compressed air to clean the dust on the filter bag (17) at intervals, and the dust falls through the rotary valve (71) and the waste material is discharged;

[0022] In a specific implementation example of the present invention, a top cover (06) and a sealing ring (010) are provided above the box body (100). When the filter bag (17) needs to be replaced, the filter bag (17) is replaced by opening the top cover (6).

[0023] In a specific implementation example of the present invention, an explosion relief plate (3) is provided below the air + material inlet plate (05). When an explosion hazard occurs, the explosion relief plate is used to release excessive pressure to reduce the risk.

[0024] The positive and progressive effect of the present invention is that it is divided into three modules through sheet metal bending and assembly, which is convenient for transportation and installation and has a low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the cross-sectional structure of the box body in the present invention;

[0026] Figure 2 This is a schematic diagram of the box structure from the front;

[0027] Figure 3 It is a schematic diagram of the overall external three-dimensional structure;

[0028] Figure 4 It is a schematic diagram of the structure of a single bag cage assembly;

[0029] Figure 5 It is a schematic diagram of the top structure of the box;

[0030] Figure 6 It is a schematic diagram of the structure of the blowing component;

[0031] Figure 7 This is a schematic diagram of the nozzle installation structure;

[0032] Figure 8 It is a schematic diagram of the sampler structure;

[0033] Fig. 9 It is a schematic diagram of the cage frame fixing plate structure;

[0034] Fig.10 It is a schematic diagram of the leg assembly structure;

[0035] Fig.11 It is a schematic diagram of the overall structure of the hopper assembly;

[0036] Fig.12 This is a schematic diagram of the overall structure of the filter bag installation assembly;

[0037] Fig.13 It is a structural schematic diagram of the pilot valve 31 and the pilot valve housing 32 of the present invention.

[0038] Fig.14 It is a schematic diagram of the overall structure of the present invention.

[0039] The following are the names corresponding to the labels in the present invention:

[0040] 01. Lifting ear; 02. Perforated plate; 03. Explosion vent; 04. Clean air outlet plate; 05. Air + material inlet plate; 06. Top cover; 07. Column; 08. Upper side plate; 09. Lower side plate; 010. Sealing ring; 011. Grounding wire; 11. Compressed air storage tank; 12. Exhaust nozzle; 13. Air distribution pipe; 14. Pulse valve; 15. Sampler; 21. Separation grid; 22. Grid fixing plate; 23. Grid mounting plate; 24. Guide plate; 31. Pilot valve; 32. Pilot valve box; 41. Exhaust nozzle mounting plate; 42. Air distribution pipe mounting plate; 51. Upper hopper; 52. Lower hopper; 61. Tripod; 62. Leg L plate; 63. Base; Rotary valve 70; 81. Bag cage; 82. Cage frame pressure plate; 83. Filter bag; 84. Cage frame fixing plate. DETAILED DESCRIPTION

[0041] Preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to illustrate the technical solutions of the present invention in detail.

[0042] Figure 1 It is a schematic diagram of the cross-sectional structure of the box body in the present invention; Figure 2 This is a schematic diagram of the box structure from the front; Figure 3 It is a schematic diagram of the overall external three-dimensional structure; Fig.13 This is a schematic diagram of the overall structure of the present invention, as shown in the above figure: a wood industry dust collector proposed by the present invention includes a box body 100, a blowing assembly 10, a separation cabin 20, a pilot valve box body 32, a material receiving bucket 50, a leg assembly 60, a rotary valve 70, and a filter bag assembly 80.

[0043] See also Figure 1 and Figure 2 It can be clearly seen that the waste and dust air are transported to the air + material inlet plate 05 by fan drive, the waste air enters the separation cabin 20, and the waste and dust air are separated through the separation grille 21. The waste falls downward under the influence of gravity, and the dust air passes through the separation grille 21 into the filter chamber. After passing through the filter bag 83, the dust is adsorbed on the surface of the filter bag 83, and the filtered clean air is transported out through the clean air outlet plate.

[0044] After working for a period of time, the pilot valve 31 and the pulse valve 14 control the compressed air, and the blowing assembly blows air to the filter bag 83 to shake off the dust attached to the surface of the filter bag 83, and enter the rotary valve 71 through the material receiving bucket, and can be collected in the dust collecting bin.

[0045] See also Figure 3 It can be seen that the dust collector is composed of a box body 100, a leg assembly 60, and a hopper material receiving hopper 50. The box body performs processes such as separation of waste and dust, dust filtering, and cleaning of filter bags, and the hopper below collects dust and waste.

[0046] See also Figure 5 It can be seen that a ground wire is connected between the dust collector housing 100 and the top cover 06 to prevent danger from static electricity.

[0047] See also Figure 8 It can be seen that the sampler 15 is installed on the air + material inlet plate 15 and the clean air outlet plate 04 to display the pressure at both ends. It can detect the pressure loss of the filter element and dredge it only when necessary according to the dust load, thereby reducing the consumption of compressed air and extending the service life of the filter element.

[0048] During specific implementation, waste and dusty air are powered by a fan and transported through a pipeline into the air + material inlet plate 05. After the dusty air and waste enter the separation cabin, the dusty air passes through the separation grille 21, and the waste cannot pass through and enters the material receiving hopper 50 below. The lower opening of the lower hopper 52 is connected to a rotary valve 70 for transmitting waste or dust.

[0049] The separated dusty air enters the filter chamber, and after being filtered by the filter bag 83, the clean air is discharged. A sampler 15 is installed at the clean air outlet plate 04 and the air + material inlet plate 05 to detect the pressure at two places. The pressure loss of the filter element can be detected. According to the dust load, it is only dredged when needed, thereby reducing the consumption of compressed air and extending the service life of the filter element.

[0050] Startup sequence. In the case of a standard restart, the system should be started in the following order. Before that, it should be checked whether the equipment is still in working condition (inspection door closed, etc.).

[0051] Start the air compressor, open the compressed air supply, check the compressed air pressure; start the chip and dust suction device, check whether the device is working properly; start the fan, check the pressure on the filter, and check whether the sequence controller is open. Stop sequence, to shut down the system, the following sequence is required: stop the fan; turn off the compressed air supply, stop the air compressor if necessary; wait until the remaining dust and waste are extracted, and then stop the chip and dust suction device.

[0052] Figure 5is a schematic diagram of the top structure of the box; Figure 5 As shown: the 06 top cover and the box body are fixed by bolts and pressure plates, and the 06 top cover and box body bolts are connected with the 011 grounding wire to prevent safety hazards caused by static electricity.

[0053] Figure 6 It is a schematic diagram of the blowing component structure, such as Figure 6 As shown: compressed air enters the air distribution pipe 13. When the pulse valve 14 is controlled to open, the compressed air is released through the 12 rows of nozzles, causing the filter bag below to vibrate and the dust to fall.

[0054] Figure 7 The schematic diagram of the nozzle installation structure is as follows: Figure 7 As shown: the nozzles are installed, the 41-row nozzle mounting plate is installed on the inner wall of the box by welding, and the ends of the 12-row nozzles are fixed by bolts.

[0055] Figure 8 is a schematic diagram of the sampler structure; Figure 8 As shown: 15 The sampler is installed on both sides of the perforated plate to measure the pressure difference on both sides to determine whether the filter bag should be replaced.

[0056] Fig. 9 is a schematic diagram of the cage frame fixing plate structure; Fig. 9 As shown: bolts pass through the 84 cage frame fixing plate and the 02 flower hole plate, and are connected to the 84 cage frame fixing plate installed on the other side, so that the 84 cage frame fixing plate is firmly fixed on the 02 flower hole plate.

[0057] Fig.12 This is a schematic diagram of the overall structure of the filter bag installation assembly; Fig.12 As shown: The filter bag installation assembly consists of three parts: 02 perforated plate, 82 cage pressure plate, and 84 cage fixing plate, which are used to arrange the filter bags in rows with equal distances to improve the filtration efficiency.

[0058] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected, and the scope of the present invention to be protected is defined by the attached claims and their equivalents.

Claims

1. A wood industry dust removal device, characterized in that: The wood industry dust removal device comprises: a box body (100), an air blowing assembly (10), a separation cabin (20), a material receiving bucket (50), a support assembly 60), a discharge rotary valve (70), a filter chamber (80), a top cover (6), and an air + material inlet plate (5); The top of the box body (100) is used to replace the filter bag. The top of the box body (100) is installed with a top cover (6). The air blowing assembly (10) is located on one side of the separation cabin (20) on the box body (100), and the air blowing assembly (10) blows a mixture of dusty air and material into the separation cabin (20); The separation cabin (20) and the filter bag assembly (80) are both located in the box body (100), and the separation cabin (20) and the filter bag assembly (80) are located at the same horizontal position. The material in the mixture of air and material blown into the separation cabin (20) enters the material receiving hopper (50); The material receiving hopper (50) is fixed below the box body (100); a material discharging rotary valve (70) is fixed below the material receiving hopper (50); A separation grid (21) is provided in the separation cabin (20); After the dusty air and waste enter the separation cabin (20), the dusty air passes through the separation grille (21), while the waste cannot pass through, and enters the material receiving hopper (50) below. The lower opening of the lower hopper (50) is connected to a rotary valve (70), and the rotary valve (70) is used to transfer the waste and dust; The dusty air passes through the separation grille (21) and enters the filter chamber (80). After passing through the filter bag (83) of the filter chamber (80), the dust is adsorbed on the surface of the filter bag (83), and the filtered clean air is transported out through the clean air outlet plate.

2. The wood industry dust removal device according to claim 1, characterized in that: A sealing ring (10) is installed at the connection with the box body (100), and a bolt is arranged on the sealing ring (10), which is connected to the bolt of the box body (100) through a grounding wire (011).

3. The wood industry dust removal device according to claim 1 is characterized in that: A sampler (19) is arranged between the air+material inlet plate (05) and the clean air outlet plate (04).

4. The wood industry dust removal device according to claim 1, characterized in that: The material receiving hopper (50) comprises an upper hopper (51) and a lower hopper (52), which are fixed together by bolt connection or welding.

5. The wood industry dust removal device according to claim 1, characterized in that: The support assembly (60) is installed below the box body (100) and connected to the upper hopper (51) and the box body (100). The support assembly (60) includes a support frame (61), a support leg L plate (62) and a base (63). The base plate (63) is welded to the support frame (61), and the support leg L plate (62) is fixed to the support frame (61) and the inner side of the hopper connecting hopper (50) by bolts.

6. A dust removal process using the wood industry dust removal device according to claims 1-5, characterized in that: The dust removal process includes the following steps: Step 1, waste materials and air enter the separation cabin (20) from the air + material inlet plate (5), and the separation plate (21) separates the waste materials and dusty air; Step 2: The waste material falls due to gravity, passes through the material receiving bucket (50), enters the rotary valve (71), and is compressed and discharged; Step 3, dusty air passes through the separation plate (21) under negative pressure, and after being filtered by the filter bag (83), the dust adheres to the surface of the filter bag (83), and the clean air is discharged through the clean air outlet plate (04); Step 4: After working for a certain period of time, the compressed air storage tank (11) fixed on the air + material inlet plate (05) is connected to the air distribution pipe (13), controlled by the pilot valve (31) and the pulse valve (15), and connected to the exhaust nozzle (12), corresponding to the filter bag opening below, and compressed air is used to clean the dust on the filter bag (17) at intervals. The dust falls and is discharged through the rotary valve (71) and the waste material.

7. The wood industry dust removal process according to claim 6, characterized in that: A top cover (06) and a sealing ring (010) are provided above the box body (100). When the filter bag (17) needs to be replaced, the filter bag (17) is replaced by opening the top cover (6).

8. The wood industry dust removal process according to claim 6, characterized in that: An explosion vent (3) is provided below the air + material inlet plate (05). When an explosion hazard occurs, the explosion vent is used to release excessive pressure to reduce the risk.

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