Waste gas treatment device

Abstract

The utility model provides a waste gas treatment device, belongs to the field of sand casting waste gas treatment, aims to solve the problem that waste gas cannot be treated in a sand casting process, and comprises a main dust collection bin, the inner walls of the left side and the right side of the main dust collection bin are slidably connected with expansion dust collection bins, a dust collection box is fixedly installed in the middle of the top of the main dust collection bin, the front side of the bottom of the dust collection box is slidably connected with a dust treatment box, the top of the dust collection box is rotatably clamped with a waste gas treatment barrel, and three layers of treatment partition plates are arranged in the waste gas treatment barrel at equal intervals; according to the waste gas treatment device, the two expansion dust collection bins are pulled out from the left side and the right side of the main dust collection bin, so that the length range of waste gas collected by the main dust collection bin can be prolonged, a larger sand casting mold can be covered, and the adaptability and expandability of the device can be improved; at the moment, large particles in the waste gas can be intercepted by the particle filter screen, so that the large particles are prevented from entering the waste gas treatment barrel to cause blockage.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment in sand casting, in particular to a waste gas treatment device. Background Technique

[0002] The waste gas generated in the sand casting industry mainly comes from the casting line. The waste gas of the casting line mainly comes from technological processes such as casting, sand core cooling, and manipulator transportation. The main pollutants in the waste gas are particulate matter, odor, and volatile organic compounds. In the existing sand casting process, waste gas is usually generated during the pouring operation and there is no special collection and treatment device, so that the waste gas can only settle naturally in the processing environment, which will cause discomfort when breathing and affect people's physical health. Content of the Utility Model

[0003] The purpose of the utility model is to provide a waste gas treatment device to solve the problem that in the existing sand casting process, waste gas is usually generated during the pouring operation and there is no special collection and treatment device, so that the waste gas can only settle naturally in the processing environment, which will cause discomfort when breathing and affect people's physical health as mentioned in the above background technique.

[0004] The purpose and effect of the waste gas treatment device of the utility model are achieved by the following specific technical means:

[0005] A waste gas treatment device, wherein the waste gas treatment device includes a main dust collection bin; extension dust collection bins are slidably connected to the left and right inner walls of the main dust collection bin. A dust collection box is fixedly installed in the middle of the top of the main dust collection bin. A dust treatment box is slidably connected to the front side of the bottom of the dust collection box. An exhaust gas treatment cylinder is rotationally clamped to the top of the dust collection box, and three treatment partition plates are equidistantly arranged inside the exhaust gas treatment cylinder.

[0006] Further, two round holes are opened in the top end face of the main dust collection bin. High-speed blowers are rotationally connected in the round holes. Two converging channels with an included angle of 90 degrees are fixedly connected to the tops of the two round holes. The two converging channels are connected to the left and right outer side walls of the dust collection box in a relative state. Support suspension rings are fixedly installed at the left and right ends of the top of the main dust collection bin.

[0007] Further, the main dust collection bin is in a "冂" shape. Inner concave side wall inner chutes are provided on the front and rear inner side walls and the top side wall of the main dust collection bin. Side wall outer sliders are provided on the outer side walls of three sides of the opposite ends of the extension dust collection bins slidably connected to the left and right sides of the main dust collection bin. The side wall outer sliders are slidably connected in the side wall inner chutes.

[0008] Furthermore, the dust box is rectangular in shape, with a circular hole on the top and a particle filter fixedly installed thereon, four connecting buckles are arranged in a circular array on the top end face of the circular hole, and the connecting buckles are in an "L" shape, and a pull-out groove is provided at the bottom of the front side wall of the dust box, in which a dust disposal box is slidably connected.

[0009] Furthermore, the exhaust gas treatment cylinder is cylindrical, and a "U"-shaped auxiliary lifting ring is provided in the middle of the front and rear outer walls of the exhaust gas treatment cylinder. Four "L"-shaped connecting grooves are opened in a circular array in the bottom inner wall of the exhaust gas treatment cylinder, and the connecting groove and the connecting buckle on the top of the dust box are rotatably connected.

[0010] Furthermore, an inner convex ring protruding upward is provided in the middle of the treatment baffle, and the middle of the inner convex ring is hollow. The top end face of the treatment baffle is fixedly connected with six support blocks in a circular array, and the top of the support block is connected to the bottom of the hemispherical cover. An external pipe is provided on the right side of the bottom of the treatment baffle, and the external pipe is connected to the side wall of the exhaust gas treatment cylinder, and the end of the external pipe is connected to the external pipe.

[0011] The utility model provides an exhaust gas treatment device, which has the following beneficial effects:

[0012] 1. By pulling out the two extended dust collecting bins from the left and right sides of the main dust collecting bin, the length range of the main dust collecting bin for collecting exhaust gas can be extended to cover a larger sand casting mold, which is beneficial to improve the adaptability and scalability of the device. The exhaust gas is blown through the particle filter by a high-speed fan. At this time, large particles in the exhaust gas will be intercepted by the particle filter to prevent large particles from entering the exhaust gas treatment tube and causing blockage. When the high-speed fan stops, large particles will fall off the particle filter under the action of gravity and knocking on the dust collecting box and fall into the dust treatment box, so that the large particles can be filtered and collected, which is convenient for improving the convenience of large particle treatment and reducing floating objects in the processing environment air.

[0013] 2. The exhaust gas treatment tube is connected to the connecting buckle through the connecting groove at the bottom and rotated to improve the convenience of disassembly and assembly of the exhaust gas treatment tube and the dust box. When the exhaust gas is blown into the exhaust gas treatment tube by the high-speed fan through the dust box, the exhaust gas will pass through the hollow inner convex ring in the middle of the treatment partition, and then impact the hemispherical cover, and blow along the curvature of the inner wall of the hemispherical cover from the gap formed by the support block to the treatment liquid on the top of the treatment partition. After the exhaust gas passes through the treatment liquid, the toxic gases and fine particles in the exhaust gas will be adsorbed and settled, thereby completing the exhaust gas treatment process through three layers of treatment partitions, and finally the adsorbed saturated treatment liquid is discharged from the external exhaust pipe for reprocessing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front axial view of the utility model;

[0015] Figure 2 This is a schematic diagram of the front side structure of the utility model that is disassembled as a whole;

[0016] Figure 3 This is a schematic diagram of the overall split structure of the utility model when viewed from above;

[0017] Figure 4 This is a schematic diagram of the cutaway structure of the collecting channel and the dust collecting box of the utility model;

[0018] Figure 5 This is a schematic diagram of the disassembled structure of the dust collection box and the dust treatment box of the utility model;

[0019] Figure 6 This is a schematic diagram of the cutaway structure of the waste gas treatment tube and treatment partition of the utility model.

[0020] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0021] 1. Main dust collecting bin; 101. Inner slide groove of side wall; 102. Supporting ring; 103. Collecting channel; 2. High-speed fan; 3. Dust collecting box; 301. Particle filter; 302. Connecting buckle; 303. Pull-out groove; 4. Dust treatment box; 5. Extended dust collecting bin; 501. External slide block of side wall; 6. Exhaust gas treatment cylinder; 601. Auxiliary ring; 602. Connecting groove; 7. Treatment partition; 701. Inner convex ring; 702. Support block; 703. Hemispherical cover; 704. External exhaust pipe. DETAILED DESCRIPTION

[0022] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.

[0023] Embodiment 1:

[0024] As attached Figure 1 To Attachment Figure 6 As shown:

[0025] The utility model provides an exhaust gas treatment device, including: a main dust collection bin 1; an extended dust collection bin 5 is slidably connected to the inner walls on the left and right sides of the main dust collection bin 1. A dust collection box 3 is fixedly installed at the middle of the top of the main dust collection bin 1. A dust treatment box 4 is slidably connected to the front side of the bottom of the dust collection box 3. An exhaust gas treatment cylinder 6 is rotatably clamped to the top of the dust collection box 3. Three treatment partition plates 7 are equidistantly arranged inside the exhaust gas treatment cylinder 6. Two round holes are opened in the middle of the top end face of the main dust collection bin 1. A high-speed fan 2 is rotatably connected in the round holes. Two converging channels 103 with an included angle of 90 degrees are fixedly connected to the tops of the two round holes. The two converging channels 103 are connected to the left and right outer side walls of the dust collection box 3 in a relative state. Support suspension rings 102 are fixedly installed at the left and right ends of the top of the main dust collection bin 1. Specifically, through the cooperation of the two converging channels 103 and the two high-speed fans 2 at the top of the main dust collection bin 1, the exhaust gas generated by sand casting can be collected more efficiently, reducing the diffusion of sand casting exhaust gas. The support suspension rings 102 at the top of the main dust collection bin 1 can improve the convenience of device transfer through cooperation with the gantry.

[0026] Among them, the main dust collection bin 1 is in a "冂" shape. The front, rear inner side walls and the top side wall of the main dust collection bin 1 are all concave-shaped with side wall inner sliding grooves 101. Three outer side walls of the opposite ends of the extended dust collection bins 5 slidably connected to the left and right sides of the main dust collection bin 1 are all provided with side wall outer sliding blocks 501. The side wall outer sliding blocks 501 are slidably connected in the side wall inner sliding grooves 101. Specifically, by pulling out the two extended dust collection bins 5 from the left and right sides of the main dust collection bin 1, the length range of the main dust collection bin 1 for collecting exhaust gas can be extended, so as to cover a larger sand casting mold, facilitating the improvement of the adaptability and expandability of the device. Moreover, the extended dust collection bin 5 is slidably connected to the side wall inner sliding groove 101 through the side wall outer sliding block 501. The limit of the side wall outer sliding block 501 can prevent the end of the extended dust collection bin 5 from sagging, thus better ensuring the flatness of the extended dust collection bin 5.

[0027] Among them, the dust collection box 3 is rectangular. A round hole is opened at the top of the dust collection box 3 and a particle filter screen 301 is fixedly installed. Four connecting buckles 302 are arranged in a circular array on the top end face of the round hole. The connecting buckles 302 are in an "L" shape. A pull-out groove 303 is opened at the bottom of the front side wall of the dust collection box 3. The dust treatment box 4 is slidably connected in the pull-out groove 303. Specifically, the high-speed fan 2 blows the exhaust gas into the dust collection box 3, and then reaches the exhaust gas treatment cylinder 6 through the top of the dust collection box 3. At this time, the large particles in the exhaust gas will be intercepted by the particle filter screen 301, preventing the large particles from entering the exhaust gas treatment cylinder 6 and causing blockage. When the high-speed fan 2 stops, the large particles will fall off the particle filter screen 301 under the action of gravity and the knocking of the dust collection box 3 and fall into the dust treatment box 4, so as to filter and collect the large particles, facilitating the improvement of the convenience of large particle treatment and reducing the floating substances in the processing environment air.

[0028] Among them, the exhaust gas treatment tube 6 is cylindrical, and a "U"-shaped auxiliary hanging ring 601 is provided in the middle of the front and rear outer walls of the exhaust gas treatment tube 6. Four "L"-shaped connecting grooves 602 are opened in a circular array in the inner wall of the bottom of the exhaust gas treatment tube 6. The connecting groove 602 and the connecting buckle 302 on the top of the dust collecting box 3 are rotatably connected. An upwardly protruding inner convex ring 701 is provided in the middle of the treatment partition 7. The middle of the inner convex ring 701 is hollow. The top end face of the treatment partition 7 is fixedly connected with six supporting blocks 702 in a circular array. The top of the supporting block 702 is connected to the bottom of the hemispherical cover 703. An external discharge pipe 704 is provided on the right side of the bottom of the treatment partition 7. The external discharge pipe 704 is connected to the side wall of the exhaust gas treatment tube 6, and the end of the external discharge pipe 704 is connected to the external pipeline. As for the specific function, the exhaust gas treatment tube 6 is snap-connected and rotatably connected to the connecting buckle 302 through the connecting groove 602 at the bottom, thereby improving the convenience of disassembly and assembly of the exhaust gas treatment tube 6 and the dust collecting box 3. When the exhaust gas is blown into the exhaust gas treatment tube 6 by the high-speed fan 2 through the dust collecting box 3, the exhaust gas will pass through the hollow inner convex ring 701 in the middle of the treatment partition 7, and then impact the hemispherical cover 703, and blow along the curvature of the inner wall of the hemispherical cover 703 from the gap formed by the support block 702 to the treatment liquid on the top of the treatment partition 7. After the exhaust gas passes through the treatment liquid, the toxic gases and fine particles in the exhaust gas will be adsorbed and precipitated, thereby completing the treatment process of the exhaust gas through the three-layer treatment partition 7, and finally the adsorbed saturated treatment liquid is discharged from the external exhaust pipe 704 for reprocessing.

[0029] The specific usage and function of this embodiment are as follows:

[0030] When using the exhaust gas treatment device, first move the main dust collecting bin 1 to the top of the sand casting model through the cooperation of the supporting ring 102 and the gantry, and then pull out the two extended dust collecting bins 5 from the left and right sides of the main dust collecting bin 1 to increase the length range of collecting exhaust gas so as to cover a larger sand casting mold. Then, the exhaust gas is blown into the dust collecting box 3 through the high-speed fan 2, and then reaches the exhaust gas treatment tube 6 through the top of the dust collecting box 3. At this time, the large particles in the exhaust gas will be intercepted by the particle filter 301 to prevent the large particles from entering the exhaust gas treatment tube 6 and causing blockage. When the high-speed fan 2 stops, the large particles will be discharged by gravity and knocking on the dust collecting box. Under the action of the dust box 3, the waste gas falls off the particle filter 301 and falls into the dust treatment box 4 so that the large particles can be filtered and collected. When the exhaust gas is blown to the exhaust gas treatment tube 6 through the dust collecting box 3 by the high-speed fan 2, the exhaust gas will pass through the hollow inner convex ring 701 in the middle of the treatment partition 7, and then impact the hemispherical cover 703, and blow along the curvature of the inner wall of the hemispherical cover 703 from the gap formed by the support block 702 to the treatment liquid on the top of the treatment partition 7. After the exhaust gas passes through the treatment liquid, the toxic gases and fine particles in the exhaust gas will be adsorbed and precipitated, and finally the adsorbed saturated treatment liquid will be discharged from the external exhaust pipe 704 for further treatment.

[0031] Embodiment 2:

[0032] The extension and retraction of the two extended dust collecting bins 5 are controlled by an electric cylinder, so that the extended dust collecting bins 5 can be better fixed and the extended dust collecting bins 5 can be fixed at the same position, which is more convenient to use.

Claims

1. An exhaust gas treatment device, characterized in that: It includes a main dust collection bin (1); on the inner walls of the left and right sides of the main dust collection bin (1), an extended dust collection bin (5) is slidably connected. The main dust collection bin (1) is in an "n"-shaped form. On the front, rear, and top inner side walls of the main dust collection bin (1), side wall inner chutes (101) are concavely provided. On the outer walls of three sides of the opposite ends of the extended dust collection bins (5) slidably connected to the left and right sides of the main dust collection bin (1), side wall outer sliders (501) are provided. The side wall outer sliders (501) are slidably connected in the side wall inner chutes (101). In the middle of the top of the main dust collection bin (1), a dust collection box (3) is fixedly installed. On the front side of the bottom of the dust collection box (3), a dust treatment box (4) is slidably connected. On the top of the dust collection box (3), an exhaust gas treatment cylinder (6) is rotationally clamped. Inside the exhaust gas treatment cylinder (6), three treatment partition plates (7) are equidistantly provided.

2. The exhaust gas treatment device according to claim 1, characterized in that: In the top end face of the main dust collection bin (1), two circular holes are provided, and a high-speed blower (2) is rotationally connected in the circular holes. At the top of the two circular holes, converging channels (103) with an included angle of ninety degrees are fixedly connected. The two converging channels (103) are connected to the left and right outer side walls of the dust collection box (3) in a relative state. At the left and right ends of the top of the main dust collection bin (1), supporting suspension rings (102) are fixedly installed.

3. The exhaust gas treatment device according to claim 1, characterized in that: The dust collection box (3) is rectangular. On the top of the dust collection box (3), a circular hole is provided and a particle filter screen (301) is fixedly installed. On the top end face of the circular hole, four connecting buckles (302) are annularly arrayed. The connecting buckles (302) are in an "L" shape. On the bottom of the front side wall of the dust collection box (3), a pull-out slot (303) is provided, and the dust treatment box (4) is slidably connected in the pull-out slot (303).

4. The exhaust gas treatment device according to claim 1, characterized in that: The exhaust gas treatment cylinder (6) is cylindrical. On the middle of the front and rear outer side walls of the exhaust gas treatment cylinder (6), "U"-shaped auxiliary suspension rings (601) are provided. In the bottom inner side wall of the exhaust gas treatment cylinder (6), four "L"-shaped connecting grooves (602) are annularly arrayed. The connecting grooves (602) and the connecting buckles (302) on the top of the dust collection box (3) are rotationally clamped.

5. The exhaust gas treatment device according to claim 1, characterized in that: In the middle of the treatment partition plate (7), an upward convex inner convex ring (701) is provided. The middle of the inner convex ring (701) is hollow. On the top end face of the treatment partition plate (7), six support blocks (702) are fixedly connected in an annular array. The top of the support blocks (702) is connected to the bottom of the hemispherical cover (703). On the right side of the bottom of the treatment partition plate (7), an outer discharge pipe (704) is provided. The outer discharge pipe (704) penetrates and is connected in the side wall of the exhaust gas treatment cylinder (6). The end of the outer discharge pipe (704) is connected to an external pipeline.

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