A dust removal and purification device for wood furniture processing

Abstract

This invention relates to the field of woodworking dust removal technology, and more particularly to a dust removal and purification device for wood furniture processing, comprising a cylinder, a ring, a filter screen, and a spray plate; the cylinder contains a ring; the ring is fitted with a filter screen; and a spray plate is installed on the upper part of the cylinder, with the spray direction of the spray plate facing the filter screen. This invention employs a counter-current spraying method combined with a pre-filter. The filter screen first intercepts large dust particles, preventing them from directly impacting subsequent spray layers, reducing the load on the spray system, and improving the purification efficiency for non-fibrous dust. Furthermore, the large particles intercepted by the filter screen adhere to a water film on their surface, making it easier for subsequent rising fine dust particles to adhere and agglomerate on the water film, significantly improving the overall dust collection capacity, especially suitable for pre-treatment scenarios involving high-concentration dust-laden exhaust gas (woodworking workshops).

Description

Technical Field

[0001] This invention relates to the field of woodworking dust removal technology, and in particular to a dust removal and purification device for wood furniture processing. Background Technology

[0002] Wooden furniture generally refers to furniture made of wood, artificial wood, and other wood-based materials. Wooden furniture has many advantages, such as being natural and environmentally friendly, and solid wood furniture gives people a natural and primitive aesthetic.

[0003] However, in the current technology for manufacturing wooden furniture, processes such as cutting, shaving, planing, grinding, and painting are generally carried out. These processes generate a large amount of dust and organic pollutants. These dust and organic pollutants can carry bacteria and viruses into the air. If proper protection is not provided, they can be inhaled by operators through the respiratory tract, thus causing certain harm to the health of the operators. This needs to be improved. Summary of the Invention

[0004] In order to overcome the shortcomings of the problems mentioned in the background, the present invention provides a dust removal and purification device for wooden furniture processing.

[0005] The technical solution is as follows: A dust removal and purification device for wooden furniture processing includes a cylinder, a ring, a filter screen, and a spray plate; the ring is disposed inside the cylinder; the filter screen is disposed on the ring; the spray plate is installed on the upper part of the cylinder, and the spraying direction of the spray plate is towards the filter screen; it also includes a rotating rod, a first scraper, and a driving mechanism; the filter screen is configured as an arc-shaped cover structure with the opening facing downwards; the spray plate and the filter screen are rotatably connected to a rotating rod; a plurality of first scrapers arranged in a circular array are fixed to the rotating rod, and all the first scrapers are in contact with the inner arc surface of the filter screen; the spray plate, the rotating rod, and the first scrapers are jointly connected to a driving mechanism for driving the rotating rod and the first scrapers to rotate.

[0006] Furthermore, the driving mechanism includes a first mounting bracket and a drive motor; the first mounting bracket is fixedly connected to the rotating rod, and all the first scraper strips are fixedly connected to the first mounting bracket; the drive motor is mounted on the spray plate, and the output shaft of the drive motor is fixedly connected to the top end of the rotating rod.

[0007] Furthermore, a cylinder is provided on the inner side of the cylinder, and the upper surface of the cylinder is in contact with the lower surface of the ring; the lower ends of all the first scrapers extend downward to be flush with the lower surface of the cylinder, and all the first scrapers are in contact with the inner wall of the cylinder.

[0008] Furthermore, the portion of the first scraper located inside the cylinder is inclined.

[0009] Furthermore, it also includes a second mounting bracket and a second scraper; several second mounting brackets distributed vertically are fixed to the rotating rod; several second scraper strips distributed in a circular array are fixed to all the second mounting brackets; all the second scraper strips are located between the filter screen and the spray plate and are in contact with the inner side of the cylinder.

[0010] Furthermore, all the second scrapers are inclined, and the inclination direction of the portions of the second scrapers and the first scrapers located inside the cylinder is the same.

[0011] Furthermore, the upper surface of the ring is configured as a slope with a lower inner surface and a higher outer surface, and the lower end of the slope is flush with the lower edge of the filter screen.

[0012] Furthermore, the side of the first scraper facing the filter screen has several protrusions.

[0013] Furthermore, the lower part of the cylinder is configured as a semi-circular bowl-shaped structure with the opening facing upwards.

[0014] The beneficial effects of this invention are: 1. This invention uses a dust removal method of counter-current spraying plus a pre-filter. The filter first intercepts large dust particles, preventing them from directly impacting the subsequent spray layer, reducing the load on the spray system, and improving the purification efficiency for non-fibrous dust. Furthermore, the large particles intercepted by the filter have a water film attached to their surface, making it easier for subsequent rising fine dust particles to adhere and agglomerate on the water film, greatly improving the overall dust collection capacity. This is especially suitable for the pretreatment of high-concentration dusty exhaust gas (woodworking workshops).

[0015] 2. This invention sets the filter screen as an arc-shaped cover structure with the opening facing downwards (the screen surface is curved and convex). The water flow from top to bottom will form a continuous tangential flushing channel along the curved surface. Specifically, the sprayed water flow forms a spiral or oblique high-speed flow along the arc-shaped screen surface, which has a stronger shearing force on large dust particles attached to the screen surface and can effectively reduce the rinsing dead corners at the edges of the flat filter screen. The curved structure allows large dust particles to slide and converge more easily to the bottom drain under the combined action of gravity and water flow, resulting in more thorough sewage discharge and a higher filtration recovery rate of the filter screen after rinsing.

[0016] 3. In this invention, since all the second scrapers are inclined, the fine dust particles moving on the inner wall of the cylinder have directionality. By rotating and inclined, the fine dust particles on the inner wall of the cylinder are scraped downward, thereby improving the dust removal effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure disclosed in this invention; Figure 2This is a cross-sectional view of the cylindrical body disclosed in this invention; Figure 3 This is a schematic diagram of the structure of the filter screen disclosed in this invention; Figure 4 This is a cross-sectional view of the structure of the ring and cylinder disclosed in this invention; Figure 5 This is a schematic diagram of the structure of the rotating rod, the first scraper, the first mounting bracket, the drive motor, the second mounting bracket, and the second scraper disclosed in this invention.

[0018] The markings in the attached diagram are: 1-cylinder, 2-ring, 3-filter screen, 4-spray plate, 5-rotating rod, 6-first scraper, 7-first mounting bracket, 8-drive motor, 9-cylinder, 10-second mounting bracket, 11-second scraper, 1001-air inlet, 1002-exhaust outlet, 1003-drain outlet, 4001-water inlet. Detailed Implementation

[0019] The following description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.

[0020] Example 1: A dust removal and purification device for wooden furniture processing, such as... Figures 1-5 As shown, it includes a cylinder 1, a ring 2, a filter screen 3, and a spray plate 4; the ring 2 is disposed inside the cylinder 1; the filter screen 3 is disposed on the ring 2; the spray plate 4 is installed on the upper part of the cylinder 1, and the spraying direction of the spray plate 4 is towards the filter screen 3; it also includes a rotating rod 5, a first scraper 6, and a driving mechanism; the filter screen 3 is configured as an arc-shaped cover structure with the opening facing downward; the spray plate 4 and the filter screen 3 are rotatably connected to a rotating rod 5; at least three first scrapers 6 are fixedly connected to the rotating rod 5 in a ring array, and all the first scrapers 6 are in contact with the inner arc surface of the filter screen 3; the spray plate 4, the rotating rod 5, and the first scrapers 6 are connected to a driving mechanism for driving the rotating rod 5 and the first scrapers 6 to rotate.

[0021] The drive mechanism includes a first mounting bracket 7 and a drive motor 8; the first mounting bracket 7 is fixedly connected to the rotating rod 5, and all the first scraper strips 6 are fixedly connected to the first mounting bracket 7; the drive motor 8 is mounted on the spray plate 4, and the output shaft of the drive motor 8 is fixedly connected to the top end of the rotating rod 5.

[0022] A cylinder 9 is provided on the inner side of the cylinder 1, and the upper surface of the cylinder 9 is in contact with the lower surface of the ring 2; the lower ends of all the first scraper strips 6 extend downward to be flush with the lower surface of the cylinder 9, and all the first scraper strips 6 are in contact with the inner wall of the cylinder 9.

[0023] The first scraper 6 is inclined at the inner side of the cylinder 9.

[0024] The specific operation of this embodiment is as follows: First, an external dust extraction pipe is connected to the air inlet 1001, and the exhaust outlet 1002 is connected to an external secondary filtration device; then, dust-laden exhaust gas is introduced into the cylinder 1 through the air inlet 1001 and extracted through the exhaust outlet 1002, causing the dust-laden exhaust gas to move from bottom to top within the cylinder 1; during this process, the dust-laden exhaust gas passes through the filter screen 3 from bottom to top, and the filter screen 3 performs preliminary filtration of large dust particles in the dust-laden exhaust gas; simultaneously, water is injected into the spray plate 4 through the water inlet 4001. The spray water is then directed downwards by the spray plate 4, allowing the spray water to pass through the filter screen 3 from top to bottom. The spray water is used to remove dust from the dust-laden exhaust gas passing upwards through the filter screen 3. At the same time, the spray water washes away large particles attached to the filter screen 3 downwards, and the water's adsorption effect on large dust particles causes them to agglomerate, overcoming the upward airflow resistance. The agglomerates are then quickly discharged from the drain outlet 1003 along with the sprayed wastewater. Finally, the dust-laden exhaust gas, after preliminary filtration and spray dust removal, is extracted from the exhaust outlet 1002.

[0025] Thus, by using a counter-current spraying method combined with a pre-filter 3, large dust particles are intercepted by the filter 3, preventing them from directly impacting the subsequent spray layer, reducing the load on the spraying system, and improving the purification efficiency for non-fibrous dust. Furthermore, the large particles intercepted by the filter 3 have a water film adhering to their surface, making it easier for subsequent rising fine dust particles to adhere and aggregate on the water film, significantly improving the overall dust collection capacity, especially suitable for pre-treatment scenarios involving high-concentration dust-laden exhaust gas (woodworking workshops).

[0026] In addition, existing technologies typically set the mesh surface of filter screen 3 to be flat. However, when the mesh surface of filter screen 3 is flat, water flow can easily form a rinsing dead corner at the edge of the mesh surface. The water flow velocity drops sharply in the area near the frame, and large dust particles are easy to accumulate and remain. When large dust particles are embedded in the mesh, the shear force of the forward water flow is insufficient, making it difficult to completely flush them away. After long-term use, local blockage is likely to occur, and the filtration recovery rate is low.

[0027] In this application, the filter screen 3 is set as an arc-shaped cover structure with the opening facing downward (the screen surface is curved and raised). The water flow from top to bottom will form a continuous tangential flushing channel along the curved surface. Specifically, the spray water flow forms a spiral or oblique high-speed flow along the arc-shaped screen surface, which has a stronger shearing force on large dust particles attached to the screen surface and can effectively reduce the rinsing dead corners at the edges of the flat filter screen. The curved structure makes it easier for large dust particles to slide and converge towards the bottom drain 1003 under the combined action of gravity and water flow, resulting in more thorough sewage discharge and a higher filtration recovery rate of the filter screen 3 after rinsing.

[0028] During the above-mentioned dust removal process, the output shaft of the control drive motor 8 drives the rotating rod 5, the first mounting bracket 7 and the first scraper 6 to rotate clockwise from a top-down perspective. The first scraper 6 scrapes away the large dust particles attached to the filter screen 3, causing them to fall downwards, thus preventing the filter screen 3 from being affected by the adhesion of large dust particles.

[0029] Meanwhile, since the part of the first scraper 6 located inside the cylinder 9 is inclined, when the output shaft of the drive motor 8 drives the rotating rod 5, the first mounting bracket 7 and the first scraper 6 to rotate clockwise from a top-down perspective, the large dust particles attached to the inner wall of the cylinder 9 will be scraped downwards on the inner wall of the cylinder 9, thus preventing a large amount of large dust particles from adhering to the inner wall of the cylinder 9.

[0030] Example 2 is based on Example 1 above, such as... Figures 3-5 As shown, it also includes a second mounting bracket 10 and a second scraper 11; two second mounting brackets 10 are fixedly connected to the rotating rod 5, which are distributed vertically; all the second mounting brackets 10 are fixedly connected to at least six second scraper 11 distributed in a ring array; all the second scraper 11 are located between the filter screen 3 and the spray plate 4 and are in contact with the inner side of the cylinder 1.

[0031] All second scraper blades 11 are inclined, and the inclination direction of the second scraper blades 11 and the portion of the first scraper blade 6 located inside the cylinder 9 is the same.

[0032] The upper surface of the ring 2 is set as a slope with the inner side lower than the outer side, and the lower end of the slope is flush with the lower edge of the filter screen 3 to prevent the fine dust particles scraped down by the second scraper 11 from accumulating in the dead corner where the upper surface of the ring 2 and the inner wall of the cylinder 1 are connected.

[0033] The first scraper 6 has several protrusions on the side facing the filter screen 3. By scraping the surface of the filter screen 3 with the first scraper 6, large dust particles in the mesh of the filter screen 3 are cleaned by the protrusions on the first scraper 6, ensuring the air permeability of the filter screen 3.

[0034] The lower part of the cylinder 1 is designed as a semi-circular bowl-shaped structure with the opening facing upwards, which guides the sprayed wastewater and large dust particles, allowing them to quickly collect and be discharged, thus avoiding clogging at the drain outlet 1003.

[0035] The specific operation of this embodiment is as follows: During the above-mentioned spraying process, the second mounting bracket 10 and the second scraper 11 will rotate clockwise in sync with the rotating rod 5 from a top-down perspective. In this way, the second scraper 11 can scrape the fine dust particles that are attached to the inner wall of the cylinder 1 between the filter screen 3 and the spray plate 4 due to the spraying, so that they pass through the filter screen 3 from top to bottom under the action of the spraying and are discharged together with the wastewater.

[0036] Since all the second scraper blades 11 are inclined, the fine dust particles moving on the inner wall of the cylinder 1 have directionality. By rotating and inclined, the fine dust particles on the inner wall of the cylinder 1 are scraped downwards, improving the dust removal effect, instead of moving in a circle on the inner wall of the cylinder 1 with the second scraper blades 11 and failing to be discharged for a long time.

[0037] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A dust removal and purification device for wooden furniture processing, comprising a cylindrical body, a circular ring, a filter screen, and a spray plate; the circular ring is disposed inside the cylindrical body; the filter screen is disposed on the circular ring; the spray plate is installed on the upper part of the cylindrical body, and the spraying direction of the spray plate is towards the filter screen; characterized in that, It also includes a rotating rod, a first scraper, and a driving mechanism; the filter screen is configured as an arc-shaped cover with the opening facing downwards; the spray plate and the filter screen are rotatably connected to the rotating rod; a plurality of first scrapers are fixedly connected to the rotating rod in a circular array, and all the first scrapers are in contact with the inner arc surface of the filter screen; the spray plate, the rotating rod, and the first scrapers are connected to a driving mechanism for driving the rotating rod and the first scrapers to rotate.

2. The dust removal and purification device for wooden furniture processing according to claim 1, characterized in that, The driving mechanism includes a first mounting bracket and a drive motor; the first mounting bracket is fixedly connected to the rotating rod, and all the first scraper blades are fixedly connected to the first mounting bracket; the drive motor is mounted on the spray plate, and the output shaft of the drive motor is fixedly connected to the top end of the rotating rod.

3. The dust removal and purification device for wooden furniture processing according to claim 2, characterized in that, A cylinder is provided on the inner side of the cylinder, and the upper surface of the cylinder is in contact with the lower surface of the ring; the lower ends of all the first scrapers extend downward to be flush with the lower surface of the cylinder, and all the first scrapers are in contact with the inner wall of the cylinder.

4. The dust removal and purification device for wooden furniture processing according to claim 3, characterized in that, The portion of the first scraper located inside the cylinder is inclined.

5. The dust removal and purification device for wooden furniture processing according to claim 4, characterized in that, It also includes a second mounting bracket and a second scraper; several second mounting brackets distributed vertically are fixed to the rotating rod; several second scraper strips distributed in a circular array are fixed to all the second mounting brackets; all the second scraper strips are located between the filter screen and the spray plate and are in contact with the inner side of the cylinder.

6. The dust removal and purification device for wooden furniture processing according to claim 5, characterized in that, All the second scrapers are inclined, and the inclination direction of the portions of the second scrapers and the first scrapers located inside the cylinder is the same.

7. A dust removal and purification device for wooden furniture processing according to claim 6, characterized in that, The upper surface of the ring is set as a slope with the inner side lower than the outer side, and the lower end of the slope is flush with the lower edge of the filter screen.

8. The dust removal and purification device for wooden furniture processing according to claim 7, characterized in that, The first scraper has several protrusions on the side facing the filter screen.

9. A dust removal and purification device for wooden furniture processing according to claim 8, characterized in that, The lower part of the cylinder is designed as a semi-circular bowl-shaped structure with the opening facing upwards.

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