A waste gas purification device for environment-friendly ductile iron casting machining

Abstract

The utility model discloses a kind of waste gas purification devices for environmental protection type nodular cast iron casting processing, belong to the waste gas purification field of casting processing, including equipment frame main body, the rear end of the equipment frame main body is fixedly installed with cyclone dust collector, the upper end of the cyclone dust collector is provided with inlet, the inlet is connected with nodular cast iron casting processing device, the lower end of the cyclone dust collector is provided with a row of mouth, the upper end of the cyclone dust collector front side is provided with first connecting pipe, the left side of the equipment frame main body is provided with air pump, the equipment frame main body is provided with the purification assembly for waste gas cooling;By setting purification assembly, waste gas can be cooled and treated, avoid high-temperature impurities in waste gas to cause damage to subsequent purification equipment, prolong the service life of purification equipment, realize the purpose that waste gas generated in nodular cast iron casting processing process is effectively purified, improve the purification efficiency of waste gas.

Description

Technical Field

[0001] This utility model relates to the field of waste gas purification technology in casting processing, specifically a waste gas purification device for environmentally friendly ductile iron casting processing. Background Technology

[0002] Castings are metal shaped objects obtained by various casting methods. They are objects with certain shapes, sizes and properties obtained by pouring, injecting, sucking or other casting methods into a pre-prepared mold after smelting liquid metal, cooling and then processing them by grinding and other subsequent means.

[0003] An investigation revealed that a Chinese utility model invention patent discloses an environmentally friendly waste gas purification device for casting processing (publication number: CN217312559U), which includes a heating furnace, an exhaust pipe fixedly installed on the top of the heating furnace, a chimney fixedly installed on the right side of the exhaust pipe, a connecting pipe fixedly installed at the bottom of the chimney, a circulation pump fixedly installed at the bottom of the connecting pipe, a return pipe fixedly installed at the bottom of the chimney, and a purification structure fixedly installed at the bottom of the circulation pump.

[0004] Although the aforementioned patent guides the liquid to the heat dissipation pipe through the setting of the return pipe, which facilitates the recycling of the liquid, the effect of this exhaust gas purification device in treating certain specific pollutants is not satisfactory. In addition, the structural design of the device is relatively complex, which leads to certain difficulties in daily maintenance and repair.

[0005] Therefore, this utility model provides a waste gas purification device for environmentally friendly ductile iron casting processing to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved This invention provides a waste gas purification device for environmentally friendly ductile iron casting processing, aiming to solve the problems mentioned in the background art.

[0007] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: It includes a main body of an equipment frame, a cyclone dust collector fixedly installed at the rear end of the main body of the equipment frame, an air inlet at the upper end of the cyclone dust collector connected to a ductile iron casting processing device, a waste discharge port at the lower end of the cyclone dust collector, a first connecting pipe at the front of the upper end of the cyclone dust collector, an air pump on the left side of the main body of the equipment frame, and a purification component for cooling exhaust gas inside the main body of the equipment frame.

[0008] As a preferred technical solution of this application, the purification component includes a second connecting pipe, which is fixedly installed at the air inlet of the air pump and connected to the first connecting pipe. A third connecting pipe is fixedly installed at the air outlet of the air pump. A fourth connecting pipe is provided inside the rear end of the main body of the equipment frame. Two sets of spray washing towers are fixedly installed on the main body of the equipment frame. The two sets of spray washing towers are fixedly connected to the fourth connecting pipe, which is connected to the third connecting pipe. A fifth connecting pipe is fixedly installed at the lower end of the two sets of spray washing towers. A gas collection box is provided on the front right side of the main body of the equipment frame. The gas collection box is connected to the fifth connecting pipe, and an exhaust pipe is provided on the right side of the gas collection box.

[0009] As a preferred technical solution of this application, a first purification tank is fixedly installed on the upper end of the main body of the equipment frame, and the left and right ends of the first purification tank are fixedly connected to the front end of the first connecting pipe and the upper end of the air pump through flanges, respectively.

[0010] As a preferred technical solution of this application, a catalytic combustion device is fixedly installed on the front side of the main body of the equipment frame, and the catalytic combustion device is fixedly installed between the third connecting pipe and the fourth connecting pipe.

[0011] As a preferred technical solution of this application, multiple sets of adsorption tanks are provided between the right end of the fifth connecting pipe and the gas collection box, and each set of adsorption tanks is provided with an activated carbon plate.

[0012] As a preferred technical solution of this application, the air pump, the third connecting pipe, the fourth connecting pipe and the fifth connecting pipe are all equipped with solenoid valves.

[0013] As a preferred technical solution of this application, both the second connecting pipe and the fourth connecting pipe are provided with pressure relief pipes, and the pressure relief pipes on the second connecting pipe and the fourth connecting pipe are connected to each other.

[0014] (III) Beneficial Effects By incorporating purification components, the exhaust gas can be cooled, preventing high-temperature impurities in the exhaust gas from damaging subsequent purification equipment and extending its service life. This achieves the goal of effectively purifying the exhaust gas generated during the processing of ductile iron castings, improving the purification efficiency. Simultaneously, a cyclone dust collector filters out particulate impurities from the exhaust gas, facilitating thorough purification in subsequent processes. Furthermore, the exhaust gas purification device features a reasonable structural design, simple and convenient operation, and is easy to maintain and repair, reducing operating costs. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of a waste gas purification device for environmentally friendly ductile iron casting processing; Figure 2 This is a schematic diagram of the left-hand structure of a waste gas purification device for the processing of environmentally friendly ductile iron castings; Figure 3 This is a rear view schematic diagram of a waste gas purification device for environmentally friendly ductile iron casting processing; Figure 4 This is a right-side structural schematic diagram of a waste gas purification device for environmentally friendly ductile iron casting processing.

[0016] In the picture: 1. Main frame of the equipment; 2. Cyclone dust collector; 3. Air inlet; 4. Sludge outlet; 5. First connecting pipe; 6. Air pump; 7. Second connecting pipe; 8. First purification tank; 9. Third connecting pipe; 10. Catalytic combustion device; 11. Fourth connecting pipe; 12. Spray scrubbing tower; 13. Fifth connecting pipe; 14. Adsorption tank; 15. Gas collection box; 16. Exhaust pipe; 17. Pressure relief pipe. Detailed Implementation

[0017] 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.

[0018] This utility model provides a waste gas purification device for environmentally friendly ductile iron casting processing, such as... Figure 1-4 As shown, the waste gas purification device for environmentally friendly ductile iron casting processing includes an equipment frame body 1. A cyclone dust collector 2 is fixedly installed at the rear end of the equipment frame body 1. An air inlet 3 is provided at the upper end of the cyclone dust collector 2, which is connected to the ductile iron casting processing device. A waste discharge port 4 is provided at the lower end of the cyclone dust collector 2. A first connecting pipe 5 is provided on the front side of the upper end of the cyclone dust collector 2. An air pump 6 is provided on the left side of the equipment frame body 1. A purification component for cooling waste gas is provided inside the equipment frame body 1.

[0019] The exhaust gas is drawn into the cyclone dust collector 2 through the air inlet 3 by the suction generated by the air pump 6. The cyclone dust collector 2 removes particulate matter from the exhaust gas. Then, the exhaust gas is sprayed and purified by the purification components. The alkaline spray neutralizes the acidic gas, washes the oil fumes, and cools the exhaust gas, preventing high-temperature impurities in the exhaust gas from damaging subsequent equipment and improving purification efficiency.

[0020] The purification component includes a second connecting pipe 7, which is fixedly installed at the air inlet of the air pump 6 and connected to the first connecting pipe 5. A third connecting pipe 9 is fixedly installed at the exhaust port of the air pump 6. A fourth connecting pipe 11 is provided inside the rear end of the equipment frame body 1. Two sets of spray washing towers 12 are fixedly installed on the equipment frame body 1. The two sets of spray washing towers 12 are fixedly connected to the fourth connecting pipe 11. The fourth connecting pipe 11 is connected to the third connecting pipe 9. A fifth connecting pipe 13 is fixedly installed at the lower end of the two sets of spray washing towers 12. A gas collection box 15 is provided on the front right side of the equipment frame body 1. The gas collection box 15 is connected to the fifth connecting pipe 13. An exhaust pipe 16 is provided on the right side of the gas collection box 15.

[0021] The exhaust gas enters the two sets of spray scrubbing towers 12 through the third connecting pipe 9 and the fourth connecting pipe 11. The spray liquid in the two sets of spray scrubbing towers 12 further purifies the exhaust gas. At the same time, the heat in the exhaust gas is absorbed by the spray liquid, thereby achieving the cooling treatment of the exhaust gas. The purified exhaust gas is discharged through the fifth connecting pipe 13, and then the exhaust gas is discharged to the outside through the gas collection box 15 and the exhaust pipe 16.

[0022] The first purification tank 8 is fixedly installed on the upper end of the main body 1 of the equipment frame. The left and right ends of the first purification tank 8 are fixedly connected to the front end of the first connecting pipe 5 and the upper end of the air pump 6 through flanges, respectively.

[0023] The first purification tank 8 is designed to purify and filter the exhaust gas from which particulate matter is removed by the cyclone dust collector 2, thereby improving the purification quality of the exhaust gas. At the same time, the flange connection of the first purification tank 8 makes the installation and disassembly of the equipment more convenient, facilitating daily maintenance and repair.

[0024] A catalytic combustion device 10 is fixedly installed on the front side of the main body 1 of the equipment frame. The catalytic combustion device 10 is fixedly installed between the third connecting pipe 9 and the fourth connecting pipe 11.

[0025] The desorbed high-concentration waste gas enters the catalytic combustion device 10, where it is heated to the catalytic temperature and decomposed into harmless gas.

[0026] Multiple adsorption tanks 14 are installed between the right end of the fifth connecting pipe 13 and the gas collection box 15, and each set of adsorption tanks 14 is equipped with an activated carbon plate.

[0027] The purified waste gas is adsorbed and filtered by activated carbon plates in multiple adsorption tanks 14, which further improves the purification effect of the waste gas and ensures the quality of the discharged waste gas. In addition, the activated carbon plates can be replaced regularly to ensure their purification effect.

[0028] Solenoid valves are installed on the air pump 6, the third connecting pipe 9, the fourth connecting pipe 11, and the fifth connecting pipe 13.

[0029] By using solenoid valves, precise control can be achieved at each stage of the exhaust gas purification process, thereby improving the efficiency and flexibility of exhaust gas purification. When the exhaust gas purification device needs to be shut down for inspection or maintenance, the corresponding solenoid valves can be closed to cut off the exhaust gas purification process, ensuring the safety of operators. At the same time, the solenoid valves also facilitate segmented control of the exhaust gas purification device, allowing the exhaust gas purification process to be adjusted according to actual needs, thus improving the targeting and effectiveness of exhaust gas purification.

[0030] Both the second connecting pipe 7 and the fourth connecting pipe 11 are equipped with pressure relief pipes 17, and the pressure relief pipes 17 on the second connecting pipe 7 and the fourth connecting pipe 11 are connected to each other.

[0031] When the exhaust gas pressure flowing in the second connecting pipe 7 and the fourth connecting pipe 11 is too high, the pressure relief pipe 17 is used to exhaust and relieve the pressure, so as to avoid damage to the equipment due to excessive pressure and improve the stability and safety of the equipment.

[0032] Working principle: Exhaust gas is generated by the ductile iron casting processing device and enters the cyclone dust collector 2 through the air inlet 3. Inside the cyclone dust collector 2, the exhaust gas undergoes preliminary treatment, and the particulate matter is effectively removed and discharged through the impurity outlet 4. Subsequently, the exhaust gas flows through the first connecting pipe 5, the air pump 6, and the first purification tank 8, and then enters two sets of spray scrubbing towers 12 through the third connecting pipe 9, the catalytic combustion device 10, and the fourth connecting pipe 11. When passing through the first purification tank 8, it undergoes preliminary purification and filtration with impurities in the exhaust gas, and then passes through the third connecting pipe 9 and the fourth connecting pipe 11. Pipe 11 enters two sets of spray scrubbing towers 12. Inside the spray scrubbing towers 12, the spray liquid sprays the waste gas to further remove harmful substances from the waste gas and simultaneously cool the waste gas. The purified waste gas is discharged through the fifth connecting pipe 13 and finally discharged to the outside through the gas collection box 15 and the exhaust pipe 16. In the entire purification process, the setting of the first purification tank 8 ensures further purification of the waste gas and improves the purification quality. At the same time, the setting of the catalytic combustion device 10 enables the desorbed high-concentration waste gas to be heated to the catalytic temperature and decomposed into harmless gas.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A waste gas purification device for environmentally friendly ductile iron casting processing, comprising a main body of the equipment frame (1), characterized in that: A cyclone dust collector (2) is fixedly installed at the rear end of the main body (1) of the equipment frame. An air inlet (3) is provided at the upper end of the cyclone dust collector (2). The air inlet (3) is connected to the ductile iron casting processing device. A waste discharge port (4) is provided at the lower end of the cyclone dust collector (2). A first connecting pipe (5) is provided at the front side of the upper end of the cyclone dust collector (2). An air pump (6) is provided on the left side of the main body (1) of the equipment frame. A purification component for cooling waste gas is provided inside the main body (1) of the equipment frame.

2. The waste gas purification device for environmentally friendly ductile iron casting processing according to claim 1, characterized in that: The purification component includes a second connecting pipe (7), which is fixedly installed at the air inlet of the air pump (6). The second connecting pipe (7) is connected to the first connecting pipe (5). The exhaust port of the air pump (6) is fixedly installed with a third connecting pipe (9). A fourth connecting pipe (11) is provided inside the rear end of the equipment frame body (1). Two sets of spray washing towers (12) are fixedly installed on the equipment frame body (1). The two sets of spray washing towers (12) are fixedly connected to the fourth connecting pipe (11). The fourth connecting pipe (11) is connected to the third connecting pipe (9). A fifth connecting pipe (13) is fixedly installed at the lower end of the two sets of spray washing towers (12). A gas collection box (15) is provided on the front right side of the equipment frame body (1). The gas collection box (15) is connected to the fifth connecting pipe (13). An exhaust pipe (16) is provided on the right side of the gas collection box (15).

3. The waste gas purification device for environmentally friendly ductile iron casting processing according to claim 1, characterized in that: The upper end of the main body (1) of the equipment frame is fixedly installed with a first purification tank (8). The left and right ends of the first purification tank (8) are fixedly connected to the front end of the first connecting pipe (5) and the upper end of the air pump (6) through flanges.

4. The waste gas purification device for environmentally friendly ductile iron casting processing according to claim 2, characterized in that: A catalytic combustion device (10) is fixedly installed on the front side of the main body (1) of the equipment frame. The catalytic combustion device (10) is fixedly installed between the third connecting pipe (9) and the fourth connecting pipe (11).

5. The waste gas purification device for environmentally friendly ductile iron casting processing according to claim 2, characterized in that: Multiple adsorption tanks (14) are provided between the right end of the fifth connecting pipe (13) and the gas collection box (15), and each of the multiple adsorption tanks (14) is provided with an activated carbon plate.

6. The waste gas purification device for environmentally friendly ductile iron casting processing according to claim 2, characterized in that: Solenoid valves are installed on the air pump (6), the third connecting pipe (9), the fourth connecting pipe (11) and the fifth connecting pipe (13).

7. The waste gas purification device for environmentally friendly ductile iron casting processing according to claim 2, characterized in that: Both the second connecting pipe (7) and the fourth connecting pipe (11) are provided with pressure relief pipes (17), and the pressure relief pipes (17) on the second connecting pipe (7) and the fourth connecting pipe (11) are connected to each other.

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