A waste gas recovery device for plywood production

Abstract

A waste gas recovery device for plywood production relates to the field of plywood production and processing, and comprises an air suction hood and a lateral back suction assembly. The lateral back suction assembly is arranged at the edge portion of the air suction hood, the air suction hood is provided with an exhaust port, the inner side of the exhaust port is provided with an exhaust fan, and the lateral back suction assembly comprises a back suction pipe, a back suction pump and a counterweight seat. The utility model discloses a back suction pipe is arranged at the edge portion of the air suction hood, the back suction pipe is hung by a counterweight block at the bottom, the back suction pipe is vertically arranged below the air suction hood, the back suction pump generates a negative pressure suction force on the back suction pipe, the back suction pipe sucks the gas below the back suction cover through the back suction port in the side wall, and the waste gas close to the ground is effectively sucked back. The area that does not need to be back sucked is covered by the foldable cover, the vertical direction local back suction power is improved, the waste gas on the top of the processing workshop is concentratedly back sucked through the air suction hood, the waste gas on the top of the processing workshop and the ground are three-dimensionally sucked, and the harmful gas in the whole space is dynamically covered and recovered.

Description

Technical Field

[0001] This utility model relates to the field of plywood production and processing technology, and in particular to a waste gas recovery device for plywood production. Background Technology

[0002] During plywood production, processes such as hot pressing and gluing release large amounts of harmful gases containing formaldehyde, phenol, and volatile organic compounds (VOCs). Some components of these gases (such as formaldehyde) are denser than air, easily accumulating near the workshop floor to form a high-concentration pollution layer. However, traditional waste gas recovery devices generally employ a top-mounted single-point suction design, only capable of drawing back gases from the upper part of the workshop, lacking effective capture capabilities for harmful gases close to the ground. This results in operators being directly exposed to highly polluted areas during equipment inspections and board handling, significantly increasing health risks. Simultaneously, gases accumulating on the ground can easily diffuse through doors and windows to the surrounding factory area, causing excessive fugitive emissions. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, the purpose of this utility model is to provide a waste gas recovery device for plywood production, which can simultaneously perform three-dimensional suction from the top and ground of the processing workshop and dynamically cover the entire space for the recovery of harmful gases.

[0005] To achieve the above objectives, this utility model proposes a waste gas recovery device for plywood production, comprising an air intake hood and a side-suction assembly. The side-suction assembly is disposed on the edge of the air intake hood, and the air intake hood is provided with an exhaust port. An exhaust fan is disposed inside the exhaust port. The side-suction assembly includes a suction pipe, a suction pump, and a counterweight. The suction pipe is disposed on the edge of the air intake hood, the suction pump is disposed at the top of the suction pipe, the counterweight is disposed at the bottom of the suction pipe, a suction port is disposed on the side wall of the suction pipe, and a foldable cover is provided on the outer cover of the suction pipe.

[0006] Furthermore, the suction hood is provided with a direction adjustment component for adjusting the posture of the suction pipe. The direction adjustment component includes a feed reel, a winding reel, and a telescopic arm. The feed reel is disposed on the suction hood, the winding reel is wound around the feed reel, the telescopic arm is hinged to the edge of the suction hood, and the end of the winding reel away from the feed reel is connected to the counterweight.

[0007] Furthermore, a winding motor is provided on the suction hood, the output shaft of the winding motor is connected to the unwinding reel, and a positioning hinge is provided between the telescopic arm and the suction hood.

[0008] Furthermore, a suction support is provided at the top of the suction pipe, the suction support is connected to the end of the telescopic arm, and a guide wheel is provided on the suction support, with the winding cable passing around the guide wheel.

[0009] Furthermore, the bottom of the counterweight base is provided with a bottom air inlet slot, and a counterweight block is provided at the middle position of the bottom of the counterweight base, and the bottom of the coil is connected to the counterweight block.

[0010] Furthermore, the suction tube has a foldable structure.

[0011] Furthermore, a hanger base is provided on the top of the air intake hood, and a hanger arm is provided between the hanger base and the air intake hood.

[0012] Beneficial effects: This utility model features a back-suction pipe installed at the edge of the suction hood. The back-suction pipe is suspended vertically below the suction hood by a counterweight. A back-suction pump generates negative pressure suction on the pipe, which then draws back the gas below the suction hood through its side suction port, effectively drawing back exhaust gas close to the ground. Furthermore, a foldable shield covers areas where back-suction is not needed, increasing the vertical local back-suction power. The suction hood centrally draws back exhaust gas from the top of the processing workshop, achieving three-dimensional suction from both the top and ground of the workshop, dynamically covering the entire space for the recovery of harmful gases.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0015] Figure 1 This is a schematic diagram of the structure of a waste gas recovery device for plywood production according to an embodiment of the present invention;

[0016] Figure 2 This is a partial cross-sectional view of a waste gas recovery device for plywood production according to an embodiment of the present invention;

[0017] Figure 3 for Figure 2 A magnified view of A in the middle.

[0018] As shown in the figure: 1. Hanger base; 11. Hanger arm; 2. Suction hood; 21. Exhaust port; 22. Exhaust fan; 31. Direction adjustment assembly; 311. Cable reel; 312. Cable winding; 313. Guide wheel; 314. Cable winding motor; 315. Telescopic arm; 316. Positioning hinge; 32. Counterweight seat; 33. Lateral back suction assembly; 331. Back suction support; 332. Shield; 333. Back suction pipe; 334. Back suction port; 335. Back suction pump; 34. Bottom air inlet slot; 35. Counterweight block. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0020] The waste gas recovery device for plywood production according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0021] like Figures 1-3 As shown in the figure, the waste gas recovery device for plywood production provided in this embodiment of the utility model includes a suction hood 2 and a side suction assembly 33. The side suction assembly 33 is disposed on the edge of the suction hood 2. The suction hood 2 is provided with an exhaust port 21, and an exhaust fan 22 is disposed inside the exhaust port 21.

[0022] The lateral back-suction assembly 33 includes a back-suction pipe 333, a back-suction pump 335, and a counterweight 32. The back-suction pipe 333 is located at the edge of the suction hood 2, the back-suction pump 335 is located at the top of the back-suction pipe 333, the counterweight 32 is located at the bottom of the back-suction pipe 333, the side wall of the back-suction pipe 333 is provided with a back-suction port 334, and the outer cover of the back-suction pipe 333 is provided with a foldable cover 332.

[0023] Specifically, when the waste gas recovery device of this application is in use, the suction hood 2 draws back the waste gas from the top of the processing workshop through the exhaust fan 22 and discharges it through the exhaust port 21.

[0024] During the exhaust gas recirculation process, the bottom of the recirculation pipe 333 is vertically suspended by the counterweight 35. The recirculation pump 335 generates negative pressure suction on the recirculation pipe 333. The recirculation pipe 333 recirculates the gas below the recirculation hood through the recirculation port 334 on its side wall. Since the recirculation ports 334 on the recirculation pipe 333 are vertically distributed, the exhaust gas in the vertical layer below the suction hood 2 and the exhaust gas close to the ground are effectively recirculated. In addition, the foldable cover 332 covers the areas that do not need to be recirculated, which improves the power of concentrated recirculation in the vertical local area and takes into account the three-dimensional suction of the top and the ground of the processing workshop and the dynamic coverage of the recovery of harmful gases in the whole space.

[0025] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the suction hood 2 is provided with a direction adjustment component 31 for adjusting the posture of the return suction pipe 333. The direction adjustment component 31 includes a feed reel 311, a winding 312 and a telescopic arm 315. The feed reel 311 is provided on the suction hood 2, the winding 312 is wound on the feed reel 311, and the telescopic arm 315 is hinged to the edge of the suction hood 2. The end of the winding 312 away from the feed reel 311 is connected to the counterweight 32.

[0026] A winding motor 314 is installed on the suction hood 2. The output shaft of the winding motor 314 is connected to the unwinding reel 311. A positioning hinge 316 is provided between the telescopic arm 315 and the suction hood 2. The positioning hinge 316 is a hinge structure with a locking function. A suction support 331 is provided at the top of the suction pipe 333. The suction support 331 is connected to the end of the telescopic arm 315. A guide wheel 313 is provided on the suction support 331. The winding cable 312 passes around the guide wheel 313.

[0027] Specifically, in order to adjust the position of the return suction pipe 333, the position of the end of the telescopic arm 315 can be adjusted by the positioning hinge 316, thereby adjusting the position of the return suction pipe 333 relative to the suction hood 2. By extending and retracting the telescopic arm 315, the distance between the return suction pipe 333 and the suction hood 2 can also be adjusted. This design can adjust the position of the return suction pipe 333 according to the arrangement of the equipment space below the suction hood 2, and flexibly adjust the gas collection position of the return suction pipe 333.

[0028] To adjust the suction height at the bottom of the suction tube 333, the winding motor 314 drives the unwinding wheel 311 to rotate, which in turn drives the winding 312 to wind and unwind. During the winding and unwinding process, the counterweight 32 at the bottom of the suction tube 333 moves up and down, thereby adjusting the length of the suction tube 333 and thus adjusting the suction height. This design can be adjusted according to different suction heights.

[0029] In one embodiment of this utility model, such as Figure 3As shown, the bottom of the counterweight base 32 is provided with a bottom air inlet groove 34, and a counterweight block 35 is provided at the middle position of the bottom of the counterweight base 32. The bottom of the winding cable 312 is connected to the counterweight block 35 to provide counterweight to the bottom of the return suction pipe 333, so that the posture of the return suction pipe 333 remains stable during the return suction process and prevents it from shrinking. The air inlet groove at the bottom of the counterweight base 32 is used to vertically absorb the exhaust gas at the bottom of the return suction pipe 333.

[0030] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the suction tube 333 has a foldable structure, which can be used to adjust its length as needed.

[0031] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, a hanger base 1 is provided on the top of the suction hood 2, and a hanger arm 11 is provided between the hanger base 1 and the suction hood 2 for hoisting the suction hood 2.

[0032] To clearly illustrate the above embodiments, refer to Figures 1-3 The working principle of the waste gas recovery device for plywood production of this utility model is as follows: When in use, the waste gas recovery device of this application is installed on the ceiling of the processing workshop through the hanging base 1, and the exhaust port 21 is connected to the designated recovery location outside the workshop through the exhaust pipe.

[0033] During the waste gas recovery process, the suction hood 2 uses the exhaust fan 22 to draw back the waste gas from the top of the processing workshop. Simultaneously, the bottom of the suction pipe 333 is vertically suspended by a counterweight 35, and the suction pump 335 generates negative pressure suction on the suction pipe 333. The suction pipe 333 draws back the gas below the suction hood through the suction ports 334 on its side wall. Because the suction ports 334 on the suction pipe 333 are vertically distributed, it effectively draws back the waste gas from the vertical layer below the suction hood 2 and the waste gas close to the ground. Furthermore, during the waste gas recovery process, a foldable shield 332 can be used to shield areas that do not require recovery, increasing the power of concentrated vertical recovery in localized areas.

[0034] During operation, the position of the end of the telescopic arm 315 can be adjusted by the positioning hinge 316, thereby adjusting the position of the back suction pipe 333 relative to the suction hood 2. By extending and retracting the telescopic arm 315, the distance between the back suction pipe 333 and the suction hood 2 can be adjusted. This design allows the position of the back suction pipe 333 to be adjusted according to the arrangement of the equipment space below the suction hood 2, flexibly adjusting the gas collection position of the back suction pipe 333.

[0035] In addition, the winding motor 314 drives the winding 312 to wind up and unwind. During the winding and unwinding process, the counterweight 32 at the bottom of the suction pipe 333 moves up and down, thereby adjusting the length of the suction pipe 333 and thus adjusting the suction height of the suction pipe 333. This design can be adjusted according to different suction heights in the workshop.

[0036] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A waste gas recovery device for plywood production, characterized in that, It includes an air intake hood (2) and a side back suction assembly (33), wherein the side back suction assembly (33) is disposed on the edge of the air intake hood (2), and an exhaust port (21) is provided on the air intake hood (2), and an exhaust fan (22) is provided inside the exhaust port (21). The lateral back-suction assembly (33) includes a back-suction pipe (333), a back-suction pump (335), and a counterweight (32). The back-suction pipe (333) is located at the edge of the suction hood (2), the back-suction pump (335) is located at the top of the back-suction pipe (333), the counterweight (32) is located at the bottom of the back-suction pipe (333), the side wall of the back-suction pipe (333) is provided with a back-suction port (334), and the outer cover of the back-suction pipe (333) is provided with a foldable cover (332).

2. The waste gas recovery device for plywood production according to claim 1, characterized in that, The suction hood (2) is provided with a direction adjustment component (31) for adjusting the posture of the suction pipe (333). The direction adjustment component (31) includes a wire feeding wheel (311), a wire winding (312), and a telescopic arm (315). The wire feeding wheel (311) is provided on the suction hood (2), the wire winding (312) is wound on the wire feeding wheel (311), and the telescopic arm (315) is hinged to the edge of the suction hood (2). The end of the wire winding (312) away from the wire feeding wheel (311) is connected to the counterweight (32).

3. The waste gas recovery device for plywood production according to claim 2, characterized in that, The suction hood (2) is equipped with a winding motor (314), the output shaft of which is connected to the unwinding reel (311), and a positioning hinge (316) is provided between the telescopic arm (315) and the suction hood (2).

4. The waste gas recovery device for plywood production according to claim 2, characterized in that, The top of the suction pipe (333) is provided with a suction support (331), the suction support (331) is connected to the end of the telescopic arm (315), the suction support (331) is provided with a guide wheel (313), and the winding cable (312) passes around the guide wheel (313).

5. The waste gas recovery device for plywood production according to claim 2, characterized in that, The bottom of the counterweight base (32) is provided with a bottom air inlet groove (34), and a counterweight block (35) is provided at the middle position of the bottom of the counterweight base (32). The bottom of the winding cable (312) is connected to the counterweight block (35).

6. The waste gas recovery device for plywood production according to claim 1, characterized in that, The suction tube (333) has a foldable structure.

7. The waste gas recovery device for plywood production according to claim 1, characterized in that, The top of the air intake hood (2) is provided with a hanger base (1), and a hanger arm (11) is provided between the hanger base (1) and the air intake hood (2).

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