Exhaust gas treatment device for a die casting machine
By combining multi-stage filtration and spray cleaning mechanisms, the problem of easy clogging of filter screens in die-casting machine exhaust gas treatment equipment is solved, achieving efficient and low-cost exhaust gas treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KAISHENG PRECISION TECHNOLOGY (GUANGZHOU) CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-29
AI Technical Summary
Existing waste gas treatment equipment for die casting machines uses a single filtration method, which leads to easy clogging of the filter screen, requiring frequent replacement, resulting in low waste gas treatment efficiency and high cost.
It adopts a multi-stage filtration structure and spray cleaning mechanism, including a slidingly connected filter plate and a vibrating component, combined with a spray head and a scraper, to achieve multi-stage filtration and spray cleaning, prevent filter screen clogging, and reduce replacement frequency.
It improves the efficiency of exhaust gas treatment, reduces the frequency of filter replacement, lowers treatment costs, and ensures stable equipment operation.
Smart Images
Figure CN224292842U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of die casting machine technology, and in particular to a waste gas treatment device for die casting machines. Background Technology
[0002] During the production process of die casting machines, waste gas containing various particulate matter and harmful substances is generated. If this waste gas is directly discharged, it will pollute the environment, so it needs to be effectively treated.
[0003] Existing waste gas treatment equipment for die-casting machines uses a relatively simple filtration method, which is insufficient to adequately filter particulate matter in the waste gas, resulting in low treatment efficiency. Furthermore, the filter structure is prone to clogging due to particulate matter adhesion, requiring frequent filter replacements, which not only increases waste gas treatment costs but also affects the continuity of treatment. Therefore, we provide a waste gas treatment device for die-casting machines. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a waste gas treatment device for die casting machines. It solves the technical problems of low waste gas treatment efficiency caused by single filtration, easy clogging of filter screens, and frequent replacement of filter screens in existing waste gas treatment devices. It achieves multi-stage filtration of waste gas, improves waste gas treatment efficiency, and can also shake off particulate matter attached to the filter screen, avoiding frequent filter screen replacement and increasing waste gas treatment costs.
[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a waste gas treatment device for a die casting machine, including a spray tower connected to a treatment box via a pipeline, wherein the treatment box is equipped with a multi-stage waste gas purification treatment mechanism, and the spray tower is equipped with a spray cleaning mechanism for cleaning residual liquid.
[0006] The processing mechanism includes a filter plate one and a filter plate two slidably connected inside the processing box. Multiple sets of fixing bolts are connected to the outer sides of the filter plate one and the filter plate two. An asynchronous motor is installed at the center of the top of the processing box. The output end of the asynchronous motor is connected to a mounting rod that is rotatably connected to the bottom of the processing box. Two sets of symmetrically distributed drive rods are rotatably connected inside the processing box. Multiple sets of fixing cylinders are installed on the outer walls of the mounting rods and drive rods. A connecting spring is connected inside the fixing cylinder. The other end of the connecting spring is connected to a vibrating element that is slidably connected to the inside of the fixing cylinder. Two sets of linkage belts that are spaced apart vertically and connected to the drive rods are connected to the outer wall of the top of the mounting rod.
[0007] Preferably, the spray cleaning mechanism includes a spray head installed above the outer wall of the spray tower. Two sets of crosses are installed inside the spray tower. A connecting rod is rotatably connected inside the crosses. A bevel gear is installed at the top of the connecting rod. A drive motor is installed on the outer wall of the spray tower. A rotating rod is connected to the output end of the drive motor. A bevel gear is installed at one end of the rotating rod, meshing with the bevel gear. A fixing rod is installed on the outer wall of the connecting rod. A scraper that abuts against the inner wall of the spray tower is installed on the fixing rod. A guide plate distributed at an angle is installed at the bottom of the inside of the spray tower, and the guide plate is located directly below the bottom crosses.
[0008] Preferably, the pipeline between the treatment box and the spray tower is equipped with a flow regulating valve, and the inner wall of the pipeline is coated with a corrosion-resistant coating.
[0009] Preferably, the first filter plate and the second filter plate are fixed to the side of the treatment box by fixing bolts, and the diameters of their filter holes are different.
[0010] Preferably, the inner wall of the fixed cylinder is provided with a guide groove, the end of the vibrating element is provided with a slider that cooperates with the guide groove, and the vibrating element is a cylindrical metal block.
[0011] Preferably, the scraper is made of elastic rubber, and its end is an arc-shaped scraping surface that matches the curvature of the inner wall of the spray tower.
[0012] By employing the above technical solution, this utility model provides a waste gas treatment device for die casting machines, which has at least the following beneficial effects:
[0013] 1. This utility model, by setting up a processing mechanism, uses multiple filtration methods to filter particulate matter in the waste gas during the waste gas treatment process, thereby improving the waste gas treatment efficiency. It can also vibrate the filter structure to shake off the attached particulate matter, avoiding frequent filter replacements that would increase waste gas treatment costs, and further improving the efficiency of waste gas treatment.
[0014] 2. By setting up a spray cleaning mechanism, the present invention further treats the waste gas after preliminary treatment by spraying, thereby improving the treatment effect of the waste gas. In addition, after the spraying treatment is completed, the residual spray liquid can be removed to avoid the residual spray liquid from affecting the treatment of the waste gas. Attached Figure Description
[0015] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.
[0016] In the attached diagram:
[0017] Figure 1This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0019] Figure 3 This is a schematic diagram of the processing mechanism of this utility model;
[0020] Figure 4 This is a schematic diagram of the spray cleaning mechanism of this utility model.
[0021] In the diagram: 1. Treatment tank; 2. Spray tower;
[0022] 3. Processing mechanism; 31. Filter plate one; 32. Filter plate two; 33. Fixing bolt; 34. Asynchronous motor; 35. Mounting rod; 36. Drive rod; 37. Fixing cylinder; 38. Connecting spring; 39. Vibrating component; 310. Linkage belt;
[0023] 4. Spray cleaning mechanism; 41. Spray head; 42. Cross; 43. Connecting rod; 44. Bevel gear one; 45. Drive motor; 46. Rotating rod; 47. Bevel gear two; 48. Fixing rod; 49. Scraper; 410. Guide plate. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Example 1
[0026] Existing waste gas treatment equipment suffers from low efficiency due to its single-filter design, easy clogging, and frequent filter replacement. This embodiment provides a waste gas treatment device for die-casting machines. Please refer to [link / reference]. Figure 1 - Figure 4This equipment can perform multi-stage filtration of exhaust gas, improving exhaust gas treatment efficiency and shaking off particulate matter attached to the filter screen, avoiding frequent filter replacements and increasing exhaust gas treatment costs. The exhaust gas treatment equipment for the die-casting machine includes a spray tower 2 connected to a treatment tank 1 via a pipeline. A flow regulating valve is installed inside the pipeline between the treatment tank 1 and the spray tower 2. By adjusting the valve opening, the flow rate of exhaust gas from the treatment tank 1 to the spray tower 2 per unit time can be flexibly controlled, ensuring stable operation of the equipment under different production conditions and preventing the purification effect from being affected by excessive exhaust gas flow exceeding the treatment capacity of the spray tower 2. Furthermore, the inner wall of the pipeline is coated with a corrosion-resistant coating. During the spraying process in the spray tower 2, corrosive liquids or gases carried by the exhaust gas can easily corrode the inner wall of the pipeline. The corrosion-resistant coating forms an isolation barrier, preventing the pipeline material from directly contacting corrosive substances and extending the service life of the pipeline. The treatment tank 1 is equipped with a multi-stage exhaust gas purification treatment mechanism 3, and the spray tower 2 is equipped with a spray cleaning mechanism 4 for cleaning residual liquids. The treatment unit 3 can not only perform multiple filtrations on the exhaust gas, but also shake off the particles on the filter screen to avoid clogging of the filter holes and reduce the cost of exhaust gas treatment. The spray cleaning unit 4 can further treat the exhaust gas by liquid adsorption and clean up the residual spray liquid to improve the efficiency of exhaust gas treatment.
[0027] Existing waste gas treatment equipment for die casting machines uses a single filtration method, which is insufficient to filter particulate matter, resulting in low treatment efficiency. Furthermore, the filter structure is prone to clogging due to particulate matter, requiring frequent filter replacements, which increases costs and affects the continuity of treatment. In order to solve the above problems... The treatment mechanism 3 includes a filter plate 31 and a filter plate 32 slidably connected inside the treatment box 1. The filter plate 31 and filter plate 32 are fixed to the side of the treatment box 1 by fixing bolts 33, allowing for quick removal of the filter plate 31 and filter plate 32 for cleaning or replacement without disassembling the entire treatment box 1, simplifying maintenance and reducing labor costs. The filter plates have different pore diameters, forming a multi-stage filtration structure, improving the efficiency of waste gas treatment. Multiple sets of fixing bolts 33 are connected to the outer sides of the filter plate 31 and filter plate 32. An asynchronous motor 34 is installed at the center of the top of the treatment box 1. The output end of the asynchronous motor 34 is connected to a mounting rod 35 that is rotatably connected to the bottom of the treatment box 1. Two sets of symmetrically distributed drive rods 36 are rotatably connected inside the treatment box 1. Multiple sets of fixing bolts 35 are installed on the outer walls of the mounting rods 35 and drive rods 36. The fixed cylinder 37 has a guide groove on its inner wall. A connecting spring 38 is connected inside the fixed cylinder 37. The other end of the connecting spring 38 is connected to a vibrating element 39 that is slidably connected inside the fixed cylinder 37. The vibrating element 39 is a cylindrical metal block. The metal material has high density and strong inertia, which can enhance the vibration amplitude and impact force, effectively shaking off stubborn particles attached to the filter plate. The end of the vibrating element 39 is provided with a slider that cooperates with the guide groove. Through the sliding cooperation between the guide groove and the slider, the movement trajectory of the vibrating element 39 is limited to the axial direction of the fixed cylinder 37, preventing it from radially deviating or shaking under the action of centrifugal force, ensuring stable vibration direction, and thus accurately transmitting vibration to filter plate 31 and filter plate 32. The outer wall of the top of the mounting rod 35 is connected to two sets of linkage belts 310 that are spaced apart vertically and connected to the drive rod 36. Filter plate 31 and filter plate 32 are inserted into the treatment box 1 and fixed with fixing bolts 33. The asynchronous motor 34 drives the mounting rod 35 to rotate. Under the connection of two sets of linkage belts 310, the two sets of drive rods 36 rotate synchronously with the mounting rod 35, thereby driving the fixed cylinder 37 to rotate. Through the elastic connection of the connecting spring 38, the vibrating element 39 vibrates the sides of filter plate 31 and filter plate 32, thereby shaking off the particles attached to filter plate 31 and filter plate 32. The shaken particles can be manually cleaned through the inspection ports on both sides of the treatment box 1, preventing frequent replacement of filter screens and increasing the cost of exhaust gas treatment, and also improving the efficiency of exhaust gas treatment.
[0028] Example 2
[0029] Based on Example 1, such as Figure 1 - Figure 4As shown, the existing waste gas treatment equipment has the problem of simple filtration, easy clogging of the filter screen and frequent replacement, resulting in low waste gas treatment efficiency. However, after the waste gas is treated by spraying, there is often residual spray liquid in the spray tower 2. If this residual liquid is not removed in time, it may have an adverse effect on the subsequent waste gas treatment. Therefore, the device is also equipped with a structure for cleaning residual liquid.
[0030] After treating exhaust gas using a spray method, spray liquid often remains inside the spray tower 2. If this residual liquid is not removed in time, it may affect the subsequent exhaust gas flow path, reduce the treatment effect, or even damage the equipment due to the corrosiveness of the residual liquid. To solve the above problems, the spray cleaning mechanism 4 includes a spray head 41 installed on the upper part of the outer wall of the spray tower 2. Two sets of crosses 42 are installed inside the spray tower 2. A connecting rod 43 is rotatably connected inside the crosses 42. A bevel gear 44 is installed at the top of the connecting rod 43. A drive motor 45 is installed on the outer wall of the spray tower 2. A rotating rod 46 is connected to the output end of the drive motor 45. A bevel gear 47 that meshes with the bevel gear 44 is installed at one end of the rotating rod 46. A fixing rod 48 is installed on the outer wall of the connecting rod 43. A scraper 49 that abuts against the inner wall of the spray tower 2 is installed on the fixing rod 48. The scraper 49 is spring-loaded. Made of elastic rubber, the rubber has good flexibility and deformation ability, which can closely fit the irregular curved surface of the inner wall of the spray tower 2, ensuring that residual spray liquid is scraped off without dead corners. The end of the scraper is an arc-shaped scraping surface that matches the curvature of the inner wall of the spray tower 2. The arc-shaped scraping surface perfectly matches the curvature of the inner wall of the spray tower 2, so that each contact point of the scraper 49 can fit against the inner wall in a tangential direction during rotation, forming a continuous scraping trajectory and reducing blind spots. The bottom of the spray tower 2 is equipped with a guide plate 410 distributed at an angle, and the guide plate 410 is located directly below the cross 42 at the bottom. Spraying liquid can be sprayed into the spray tower 2 through the spray head 41 to further treat the waste gas. Under the guidance of the guide plate 410, the spraying liquid can be diverted out. After spraying is completed, the drive motor 45 drives the rotating rod 46 to rotate, which in turn drives the bevel gear 47 to rotate. Under the mutual meshing of the bevel gear 44 and the bevel gear 47, the connecting rod 43 rotates under the support of the cross 42, which in turn drives the scraper 49 to scrape off the residual spraying liquid adhering to the inner wall of the spray tower 2 under the support of the fixed rod 48, thereby improving the quality of waste gas treatment.
[0031] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A waste gas treatment device for a die-casting machine, comprising a spray tower (2) connected to a treatment tank (1) via a pipeline, characterized in that: The treatment box (1) is equipped with a multi-stage waste gas purification treatment mechanism (3), and the spray tower (2) is equipped with a spray cleaning mechanism (4) for cleaning residual liquid. The processing mechanism (3) includes a filter plate one (31) and a filter plate two (32) slidably connected inside the processing box (1). Multiple sets of fixing bolts (33) are connected to the outer side of the filter plate one (31) and the filter plate two (32). An asynchronous motor (34) is installed at the center of the top of the processing box (1). The output end of the asynchronous motor (34) is connected to an installation rod (35) that is rotatably connected to the bottom of the processing box (1). Two sets of symmetrically distributed drive rods (36) are rotatably connected inside the processing box (1). Multiple sets of fixing cylinders (37) are installed on the outer wall of the installation rod (35) and the drive rod (36). A connecting spring (38) is connected inside the fixing cylinder (37). The other end of the connecting spring (38) is connected to a vibrating element (39) that is slidably connected to the inside of the fixing cylinder (37). Two sets of linkage belts (310) that are spaced apart vertically and connected to the drive rod (36) are connected to the outer wall of the top of the installation rod (35).
2. The waste gas treatment equipment for a die-casting machine according to claim 1, characterized in that: The spray cleaning mechanism (4) includes a spray head (41) installed on the upper part of the outer wall of the spray tower (2). Two sets of crosses (42) are installed inside the spray tower (2). A connecting rod (43) is rotatably connected inside the crosses (42). A bevel gear (44) is installed at the top of the connecting rod (43). A drive motor (45) is installed on the outer wall of the spray tower (2). A rotating rod (46) is connected to the output end of the drive motor (45). A bevel gear (47) that meshes with the bevel gear (44) is installed at one end of the rotating rod (46). A fixing rod (48) is installed on the outer wall of the connecting rod (43). A scraper (49) that abuts against the inner wall of the spray tower (2) is installed on the fixing rod (48). A guide plate (410) with an oblique distribution is installed at the bottom of the spray tower (2), and the guide plate (410) is located directly below the bottom crosses (42).
3. The waste gas treatment equipment for a die-casting machine according to claim 1, characterized in that: The pipeline between the treatment box (1) and the spray tower (2) is equipped with a flow regulating valve, and the inner wall of the pipeline is coated with a corrosion-resistant coating.
4. The waste gas treatment equipment for a die-casting machine according to claim 1, characterized in that: The filter plate one (31) and filter plate two (32) are fixed to the side of the treatment box (1) by fixing bolts (33), and the filter hole diameters of the two are different.
5. The waste gas treatment equipment for a die-casting machine according to claim 1, characterized in that: The inner wall of the fixed cylinder (37) is provided with a guide groove, and the end of the vibrating element (39) is provided with a slider that cooperates with the guide groove. The vibrating element (39) is a cylindrical metal block.
6. The waste gas treatment equipment for a die-casting machine according to claim 2, characterized in that: The scraper (49) is made of elastic rubber, and its end is an arc-shaped scraping surface that matches the curvature of the inner wall of the spray tower (2).