Waste gas treatment device for casting machine production
By introducing a rotating water curtain cleaning assembly consisting of a water storage tank, a water guide plate, and atomizing nozzles, as well as a switching assembly for the sealing plate and filter frame into the casting machine exhaust gas treatment device, the problems of insufficient water curtain coverage and filter frame maintenance downtime have been solved, achieving efficient exhaust gas treatment and continuous operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 董玉婷
- Filing Date
- 2025-05-05
- Publication Date
- 2026-05-12
AI Technical Summary
Traditional foundry exhaust gas treatment devices have limited water curtain coverage, resulting in low exhaust gas treatment efficiency. Furthermore, the need for frequent filter replacement and maintenance leads to equipment downtime and affects work efficiency.
The system utilizes a water tank, water guide plate, and atomizing nozzles in the cleaning assembly to form a rotating water curtain. Combined with the sealing plate and filter frame of the switching assembly, it enables non-stop maintenance and efficient exhaust gas treatment.
It improves the cleaning efficiency of exhaust gas treatment, extends the service life of the equipment, and ensures continuous operation of the equipment without stopping when replacing the filter frame.
Smart Images
Figure CN224221046U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste gas treatment technology for foundry machines, specifically a waste gas treatment device for foundry machine production. Background Technology
[0002] The research and development of waste gas treatment devices for foundry machine production is closely related to the needs of green transformation in the manufacturing industry. The waste gas generated during the foundry process contains pollutants such as dust, sulfur oxides, nitrogen oxides and volatile organic compounds. Direct discharge of these pollutants will seriously harm the ecological environment and human health.
[0003] Traditional equipment for treating exhaust gas suffers from low efficiency because the water curtain from the atomizing nozzles has a limited coverage area, preventing the water curtain from completely adsorbing particulate matter in the exhaust gas. Furthermore, the internal filter frames require replacement and maintenance after prolonged use, necessitating periodic shutdowns of the equipment. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a waste gas treatment device for casting machine production. The cleaning component can improve the cleanliness of the equipment and extend its service life. The switching component can prevent the equipment from stopping when the filter frame is maintained, thereby improving the working efficiency of the equipment.
[0005] The technical problem to be solved by this utility model is achieved by the following technical solution:
[0006] A waste gas treatment device for casting machine production includes: a waste gas treatment box, with an outlet a and an outlet b connected to the top of the waste gas treatment box, a sewage outlet inside the waste gas treatment box, a sludge collection box installed at the bottom of the waste gas treatment box, the opening at the top of the sludge collection box corresponding to the position of the sewage outlet, an air inlet pipe connected to one side of the waste gas treatment box, a cleaning component disposed inside the waste gas treatment box for cleaning the gas inside the waste gas treatment box, the cleaning component including: a water storage tank, a water guide plate and an atomizing nozzle, and a switching component disposed on the top of the waste gas treatment box for switching between outlet a and outlet b for convenient maintenance without stopping the machine, the switching component including: a closing groove, a sealing plate and a filter frame.
[0007] Preferably, a water storage tank is installed on the top of the exhaust gas treatment box, and a water outlet pipe is connected to the top of the water storage tank. One end of the water outlet pipe is connected to a water pump, and the bottom of the water pump is connected to a drain pipe. The drain pipe is rotatably connected to a guide pipe through a mechanical seal. A motor is installed on the top of the exhaust gas treatment box, and a gear a is driven by a drive shaft on the top of the motor. A gear b is installed on the outside of the guide pipe, and gear a and gear b are meshed. A reciprocating screw is connected to the bottom of the guide pipe, and a guide groove of a corresponding size to the inner wall of the guide pipe is opened inside the reciprocating screw. A guide plate is provided inside the exhaust gas treatment box. One end of the lead screw extends into the water guide plate and is fixedly connected to the water guide plate. Multiple atomizing nozzles are connected to the bottom of the water guide plate. A rotating frame is provided inside the exhaust gas treatment box. The rotating frame has a threaded hole that is threadedly connected to the reciprocating lead screw. One end of the reciprocating lead screw passes through the rotating frame and is threadedly connected to the rotating frame. Two limiting rods are provided on the top of the rotating frame. One end of each limiting rod is connected to the inside of the exhaust gas treatment box, and the other end of each limiting rod passes through the rotating frame and is connected to the inside of the exhaust gas treatment box. Cleaning scrapers are connected to both ends of the rotating frame.
[0008] Preferably, the top of the exhaust gas treatment box has two exhaust ports corresponding to the exhaust port a and the exhaust port b. Each of the two exhaust ports has a closed groove inside. Both sides of the exhaust gas treatment box are provided with sealing plates. One end of each of the two sealing plates extends into the corresponding closed groove. A handle is installed on one side of each of the two sealing plates. Both exhaust ports a and b are provided with filter frames. Both filter frames are provided with composite filter layers for treating exhaust gas.
[0009] The beneficial effects of this utility model are:
[0010] The advantages of this invention are that it utilizes a water storage tank, a water guide plate, and an atomizing nozzle in the cleaning assembly. Water is pumped to the water guide pipe by a water pump, and then sprayed out through the atomizing nozzle at the bottom of the water guide plate. The motor drives the water guide pipe to rotate through the mechanical seal, causing the water guide plate to rotate and forming a rotating water curtain, which improves the cleaning efficiency of particulate matter in the exhaust gas. Then, the rotation of the water guide pipe drives the cleaning scraper to scrape off the sewage from the inner wall of the equipment and discharge it from the sewage outlet, thereby improving the cleanliness of the equipment and extending its service life.
[0011] Secondly, by switching the closure slot, sealing plate, and filter frame in the components, when the filter frame needs to be replaced, the sealing plate is inserted into the corresponding closure slot, and then the sealing plate on the side that needs to be worked is pulled out, so as to flexibly switch the exhaust gas outlet and prevent the equipment from stopping when the filter frame is maintained, thereby improving the working efficiency of the equipment. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0013] Figure 2 This is a front sectional view of the overall structure of this utility model.
[0014] Figure 3 This is a schematic diagram of the cleaning scraper structure of this utility model.
[0015] Figure 4 This is a schematic diagram of the water guide plate structure of this utility model.
[0016] Figure 5 For the present utility model Figure 2 Enlarged view of point A.
[0017] Figure 6 For the present utility model Figure 2 Enlarged view of point B.
[0018] Figures 1-6 Components: 1. Exhaust gas treatment box; 101. Outlet a; 102. Outlet b; 103. Sewage outlet; 104. Sludge collection box; 105. Inlet pipe; 2. Water storage tank; 201. Water outlet pipe; 202. Water pump; 203. Water guide pipe; 204. Mechanical seal structure; 3. Motor; 301. Gear a; 302. Gear b; 4. Reciprocating screw; 401. Water guide plate; 402. Atomizing nozzle; 5. Rotating frame; 501. Cleaning scraper; 502. Limiting rod; 6. Closing groove; 601. Sealing plate; 602. Handle; 7. Filter frame; 701. Composite filter layer. Detailed Implementation
[0019] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0020] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0021] like Figures 1-6As shown, a waste gas treatment device for casting machine production includes a waste gas treatment box 1. The top of the waste gas treatment box 1 is connected to an outlet a101 and an outlet b102. A sewage outlet 103 is opened inside the waste gas treatment box 1. A sludge collection box 104 is installed at the bottom of the waste gas treatment box 1. The opening at the top of the sludge collection box 104 corresponds to the position of the sewage outlet 103. An air inlet pipe 105 is connected to one side of the waste gas treatment box 1. A cleaning component is set inside the waste gas treatment box 1 for cleaning the gas inside the waste gas treatment box 1. The cleaning component includes a water storage tank 2, a water guide plate 401, and an atomizing nozzle 402. A switching component is set on the top of the waste gas treatment box 1 for switching between outlet a101 and outlet b102 for convenient maintenance without stopping the machine. The switching component includes a closing groove 6, a sealing plate 601, and a filter frame 7.
[0022] The system utilizes a water tank 2, a water guide plate 401, and an atomizing nozzle 402 in the cleaning assembly. Water is pumped to a water guide pipe 203 by a water pump 202, and then sprayed out through the atomizing nozzle 402 at the bottom of the water guide plate 401. The motor 3 drives the water guide pipe 203 to rotate through the mechanical seal 204, causing the water guide plate 401 to rotate and form a rotating water curtain, improving the cleaning efficiency of particulate matter in the exhaust gas. The rotation of the water guide pipe 203 then drives the cleaning scraper 501 to scrape off the sewage from the inner wall of the equipment and discharge it from the sewage outlet 103, improving the cleanliness of the equipment and extending its service life. Furthermore, by switching the closing slot 6, sealing plate 601, and filter frame 7 in the assembly, when the filter frame 7 needs to be replaced, the sealing plate 601 is inserted into the corresponding closing slot 6, and then the sealing plate 601 on the side that needs to be worked is pulled out, flexibly switching the exhaust gas outlet so that the equipment will not stop when the filter frame 7 is being maintained, thus improving the working efficiency of the equipment.
[0023] The waste gas treatment box 1 has a water storage tank 2 installed on top, and a water outlet pipe 201 connected to the top of the water storage tank 2. One end of the water outlet pipe 201 is connected to a water pump 202, and the bottom of the water pump 202 is connected to a drain pipe. The drain pipe is rotatably connected to a guide pipe 203 through a mechanical seal 204. A motor 3 is installed on top of the waste gas treatment box 1, and a gear a 301 is driven by a drive shaft on the top of the motor 3. A gear b 302 is installed on the outside of the guide pipe 203, and gear a 301 and gear b 302 are meshed. A reciprocating screw 4 is connected to the bottom of the guide pipe 203. A guide groove of the same size as the inner wall of the guide pipe 203 is opened inside the reciprocating screw 4. A guide plate 401 is set inside the waste gas treatment box 1. One end of rod 4 extends into the water guide plate 401 and is fixedly connected to the water guide plate 401. Multiple atomizing nozzles 402 are connected to the bottom of the water guide plate 401. A rotating frame 5 is installed inside the exhaust gas treatment box 1. The rotating frame 5 has a threaded hole that is threaded to the reciprocating screw 4. One end of the reciprocating screw 4 passes through the rotating frame 5 and is threaded to the rotating frame 5. Two limiting rods 502 are installed on the top of the rotating frame 5. One end of each limiting rod 502 is connected to the inside of the exhaust gas treatment box 1, and the other end of each limiting rod 502 passes through the rotating frame 5 and is connected to the inside of the exhaust gas treatment box 1. Cleaning scrapers 501 are connected to both ends of the rotating frame 5 to improve the cleanliness of the equipment and extend its service life.
[0024] Traditional equipment, when treating exhaust gas, suffers from low efficiency because the water curtain coverage of the atomizing nozzles is limited, resulting in incomplete adsorption of particulate matter in the exhaust gas. In this equipment, a water pump 202 pressurizes water from the storage tank 2 into the drain pipe and delivers it to the guide pipe 203. Then, a motor 3 drives gear a301 to rotate, which meshes with gear b302 on the outside of the guide pipe 203, causing the guide pipe 203 to rotate around its own axis via a mechanical seal 204. The rotational force of the guide pipe 203 is transmitted to the guide plate 401 via a reciprocating screw 4, causing the guide plate 401 to rotate synchronously inside the exhaust gas treatment chamber 1. The atomizing nozzle 402 at the bottom of the water guide plate 401 atomizes water evenly as it rotates, forming a rotating water curtain around the inner wall of the exhaust gas treatment box 1. After the exhaust gas enters through the air inlet pipe 105, it comes into contact with the rotating water curtain. The water mist adsorbs the particulate matter in the exhaust gas and makes it fall due to its increased weight. At the same time, the reciprocating screw 4 on the outside of the water guide pipe 203 rotates with the water guide pipe 203 and engages with the threaded hole inside the rotating frame 5, driving the rotating frame 5 to move up and down along the limit rod 502. The cleaning scrapers 501 at both ends of the rotating frame 5 move close to the inner wall of the exhaust gas treatment box 1, scraping the sewage attached to the inner wall to the bottom. The sewage flows into the sludge collection box 104 through the sewage outlet 103 for centralized treatment, realizing the self-cleaning of the inner wall of the equipment.
[0025] The exhaust gas treatment box 1 has two exhaust ports on its top, corresponding to exhaust ports a101 and b102. Both exhaust ports have a closed groove 6 inside. Both sides of the exhaust gas treatment box 1 are provided with sealing plates 601. One end of each sealing plate 601 extends into the corresponding closed groove 6. A handle 602 is installed on one side of each sealing plate 601. Both exhaust ports a101 and b102 are provided with filter frames 7. Both filter frames 7 are provided with a composite filter layer 701 for treating exhaust gas.
[0026] Because the filter frames inside the equipment need to be replaced and maintained after long-term use, the equipment may need to be shut down at certain times. When using this equipment, if it is necessary to replace the filter frame 7 inside the outlet a101 or outlet b102, the operator inserts the sealing plate 601 into the corresponding closing groove 6 of the outlet using the handle 602. After the sealing plate 601 is fully embedded in the closing groove 6, its edge is tightly fitted with the sealing strip of the closing groove 6, sealing the passage of the outlet. At this time, the airflow inside the exhaust gas treatment box 1 is forced to be discharged from the other unsealed outlet. To ensure the continuous operation of the exhaust gas treatment process, maintenance personnel can pull out the outlet sealing plate 601 where the filter frame 7 to be replaced is located, remove the old filter frame 7 from the exhaust port and replace it with a new filter frame 7. After the new filter frame 7 is installed, the sealing plate 601 is pulled out to restore the exhaust port passage, and the exhaust gas is diverted back to the filter frames 7 on both sides for purification. Then, the composite filter layer 701 inside the filter frame 7 intercepts residual particles and adsorbs harmful gases through multiple layers of filter material. By alternately opening and closing the sealing plate 601, the equipment can complete the maintenance or replacement of the filter frame 7 without stopping the machine, ensuring the efficiency of exhaust gas treatment.
[0027] Working principle:
[0028] Traditional equipment, when treating exhaust gas, suffers from low efficiency because the water curtain coverage of the atomizing nozzles is limited, resulting in incomplete adsorption of particulate matter in the exhaust gas. In this equipment, a water pump 202 pressurizes water from the storage tank 2 into the drain pipe and delivers it to the guide pipe 203. Then, a motor 3 drives gear a301 to rotate, which meshes with gear b302 on the outside of the guide pipe 203, causing the guide pipe 203 to rotate around its own axis via a mechanical seal 204. The rotational force of the guide pipe 203 is transmitted to the guide plate 401 via a reciprocating screw 4, causing the guide plate 401 to rotate synchronously inside the exhaust gas treatment chamber 1. The atomizing nozzle 402 at the bottom of the water guide plate 401 atomizes water evenly as it rotates, forming a rotating water curtain around the inner wall of the exhaust gas treatment box 1. After the exhaust gas enters through the air inlet pipe 105, it comes into contact with the rotating water curtain. The water mist adsorbs the particulate matter in the exhaust gas and makes it fall due to its increased weight. At the same time, the reciprocating screw 4 on the outside of the water guide pipe 203 rotates with the water guide pipe 203 and engages with the threaded hole inside the rotating frame 5, driving the rotating frame 5 to move up and down along the limit rod 502. The cleaning scrapers 501 at both ends of the rotating frame 5 move close to the inner wall of the exhaust gas treatment box 1, scraping the sewage attached to the inner wall to the bottom. The sewage flows into the sludge collection box 104 through the sewage outlet 103 for centralized treatment, realizing the self-cleaning of the inner wall of the equipment.
[0029] Because the filter frames inside the equipment need to be replaced and maintained after long-term use, the equipment may need to be shut down at certain times. When using this equipment, if it is necessary to replace the filter frame 7 inside the outlet a101 or outlet b102, the operator inserts the sealing plate 601 into the corresponding closing groove 6 of the outlet using the handle 602. After the sealing plate 601 is fully embedded in the closing groove 6, its edge is tightly fitted with the sealing strip of the closing groove 6, sealing the passage of the outlet. At this time, the airflow inside the exhaust gas treatment box 1 is forced to be discharged from the other unsealed outlet. To ensure the continuous operation of the exhaust gas treatment process, maintenance personnel can pull out the outlet sealing plate 601 where the filter frame 7 to be replaced is located, remove the old filter frame 7 from the exhaust port and replace it with a new filter frame 7. After the new filter frame 7 is installed, the sealing plate 601 is pulled out to restore the exhaust port passage, and the exhaust gas is diverted back to the filter frames 7 on both sides for purification. Then, the composite filter layer 701 inside the filter frame 7 intercepts residual particles and adsorbs harmful gases through multiple layers of filter material. By alternately opening and closing the sealing plate 601, the equipment can complete the maintenance or replacement of the filter frame 7 without stopping the machine, ensuring the efficiency of exhaust gas treatment.
[0030] For the specific model of mechanical seal 204, please refer to 11-H192N / 33-00. Mechanical seal 204 is generally divided into dynamic ring and static ring. The material is selected according to the different media. The packing seal structure is simple and is generally graphite or asbestos strip. The static ring is fixed to the drain pipe, and the dynamic ring rotates with the water guide pipe 203. The end faces of the two are precisely fitted.
[0031] In addition, all electrical components mentioned in the article are electrically connected to the main controller and power supply. The main controller can be a conventional known device such as a computer that performs control, and the existing publicly available power connection technology will not be described in detail in the article.
[0032] The above provides a detailed description of a waste gas treatment device for casting machine production provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A waste gas treatment device for casting machine production, characterized in that, include: The waste gas treatment box (1) has an outlet a (101) and an outlet b (102) connected to the top of the waste gas treatment box (1), a sewage outlet (103) is opened inside the waste gas treatment box (1), a sludge collection box (104) is installed at the bottom of the waste gas treatment box (1), the opening at the top of the sludge collection box (104) corresponds to the position of the sewage outlet (103), and an air inlet pipe (105) is connected to one side of the waste gas treatment box (1). The cleaning assembly installed inside the exhaust gas treatment box (1) is used to clean the gas inside the exhaust gas treatment box (1). The cleaning assembly includes: a water storage tank (2), a water guide plate (401), and an atomizing nozzle (402). The switching component located on the top of the exhaust gas treatment box (1) is used to switch between the exhaust port a (101) and the exhaust port b (102) for convenient maintenance without stopping the machine. The switching component includes: a closing groove (6), a sealing plate (601) and a filter frame (7).
2. The waste gas treatment device for casting machine production according to claim 1, characterized in that, The waste gas treatment box (1) is equipped with a water storage tank (2) on top. The water storage tank (2) is connected to a water outlet pipe (201) on top. One end of the water outlet pipe (201) is connected to a water pump (202). The bottom of the water pump (202) is connected to a drain pipe. The drain pipe is rotatably connected to a water guide pipe (203) through a mechanical seal (204).
3. The waste gas treatment device for casting machine production according to claim 2, characterized in that, The exhaust gas treatment box (1) is equipped with a motor (3) on top. The motor (3) is driven by a gear a (301) via a drive shaft. The water guide pipe (203) is equipped with a gear b (302) on the outside. The gear a (301) and the gear b (302) are meshed together.
4. The waste gas treatment device for casting machine production according to claim 2, characterized in that, The bottom of the water guide pipe (203) is connected to a reciprocating screw (4). The reciprocating screw (4) has a water guide groove of a corresponding size to the inner wall of the water guide pipe (203). The exhaust gas treatment box (1) is provided with a water guide plate (401). One end of the reciprocating screw (4) extends into the water guide plate (401) and is fixedly connected to the water guide plate (401). The bottom of the water guide plate (401) is connected to multiple atomizing nozzles (402).
5. The waste gas treatment device for casting machine production according to claim 4, characterized in that, The exhaust gas treatment box (1) is equipped with a rotating frame (5). The rotating frame (5) has a threaded hole that is threaded to the reciprocating screw (4). One end of the reciprocating screw (4) passes through the rotating frame (5) and is threaded to the rotating frame (5). The top of the rotating frame (5) is equipped with two limiting rods (502). One end of each limiting rod (502) is connected to the inside of the exhaust gas treatment box (1). One end of each limiting rod (502) passes through the rotating frame (5) and is connected to the inside of the exhaust gas treatment box (1). Both ends of the rotating frame (5) are connected to cleaning scrapers (501).
6. The waste gas treatment device for casting machine production according to claim 5, characterized in that, The exhaust gas treatment box (1) has two exhaust ports on its top, corresponding to the exhaust port a (101) and the exhaust port b (102). Both exhaust ports have a closed groove (6) inside. Both sides of the exhaust gas treatment box (1) are provided with sealing plates (601). One end of each sealing plate (601) extends into the corresponding closed groove (6). A handle (602) is installed on one side of each sealing plate (601).
7. The waste gas treatment device for casting machine production according to claim 6, characterized in that, Both the air outlet a (101) and the air outlet b (102) are equipped with filter frames (7), and both filter frames (7) are equipped with composite filter layers (701) for treating waste gas.