A heat treatment exhaust gas purification device

Abstract

This application relates to a heat treatment waste gas purification device, belonging to the technical field of metal heat treatment. It includes a housing, with a fixed base fixedly connected inside the housing. The fixed base has a quick-release mechanism inside, comprising a sliding frame. A connecting block is fixedly connected to the outside of the sliding frame. A guide rod is fixedly connected inside the fixed base, and a compression spring is sleeved on the outside of the guide rod. A filter screen is slidably connected inside the sliding frame, and a locking rod is fixedly connected to the top of the filter screen. A limiting component is provided at the top of the housing. This application allows for quick removal and installation of the filter screen by pulling the limiting plate to unlock the cover, causing the sliding frame to slide upwards under spring force. Installation is performed in reverse order. This facilitates filter screen maintenance and replacement by personnel, effectively reducing maintenance time and improving equipment maintainability.

Description

Technical Field

[0001] This application relates to the field of metal heat treatment technology, and in particular to a heat treatment waste gas purification device. Background Technology

[0002] Heat treatment refers to a metal processing technique that alters the chemical composition and microstructure of a solid-state metallic material through heating, holding, and cooling to achieve desired properties. With increasingly stringent environmental regulations, emissions from heat treatment processes must comply with relevant standards. Heat treatment production generates waste gases containing harmful gases (such as nitrogen oxides and fumes), requiring effective purification equipment to minimize environmental pollution.

[0003] A search revealed that Chinese publication number CN212700983U discloses a waste gas purifier for metal heat treatment, belonging to the field of metal heat treatment. The purifier includes a casing with a support base fixedly connected to the bottom side of the casing. A waste inlet pipe is fixedly sleeved on one side of the casing, and a waste inlet valve is fixedly installed on the outside of the waste inlet pipe. Inside the casing, from left to right, a filter plate, an activated carbon plate, and a partition are fixedly connected sequentially. The outside of the partition is tightly fitted to the inner wall of the casing. An electric push rod is fixedly sleeved on the top of the casing, and a connecting block is fixedly connected to the bottom end of the electric push rod. This waste gas purifier for metal heat treatment, by incorporating the electric push rod, connecting block, and scraper, facilitates the periodic cleaning of impurities accumulated on the surface of the filter plate during the waste gas purification process, preventing filter plate clogging, ensuring filter plate permeability, and thus improving the purification effect of the waste gas purifier.

[0004] The patent description mentions that "the exhaust gas purifier for metal heat treatment, by setting an electric push rod, connecting block and scraper, can facilitate the periodic cleaning of impurities accumulated on the surface of the filter plate during the exhaust gas purification process, thus avoiding the problem of filter plate clogging." However, during the exhaust gas purification process, with the long-term use of the filter plate, the filter plate itself is prone to corrosion and damage. Since the filter plate is located inside the device, it is difficult to quickly disassemble the filter plate for maintenance. In view of the above problems, a heat treatment exhaust gas purification device is proposed. Utility Model Content

[0005] The purpose of this application is to provide a heat treatment exhaust gas purification device, which aims to improve the problem that it is difficult to quickly disassemble and maintain the filter plates in some existing devices.

[0006] The heat treatment waste gas purification device provided in this application adopts the following technical solution:

[0007] A heat treatment exhaust gas purification device includes a housing, a fixed base fixedly connected inside the housing, a quick disassembly mechanism provided inside the fixed base, and a support plate fixedly connected to the top side inside the housing, with an anti-blocking mechanism provided inside the support plate.

[0008] The quick disassembly mechanism includes a sliding frame, the outside of which is slidably connected to the inside of the fixed base. A connecting block is fixedly connected to the outside of the sliding frame. A guide rod is fixedly connected to the inside of the fixed base. The inside of the connecting block is slidably connected to the outside of the guide rod. A compression spring is sleeved on the outside of the guide rod. A filter screen is slidably connected to the inside of the sliding frame. A locking rod is fixedly connected to the top of the filter screen. The outside of the locking rod is slidably connected to a slot inside the sliding frame. A limiting component is provided on the top of the housing.

[0009] The above solution involves a compression spring pushing a sliding frame, a connecting block sliding along a guide rod, and a filter screen being engaged with the sliding frame via a locking rod. This allows for easy disassembly, a limiting component to fix the filter screen position, and an anti-clogging mechanism to prevent blockage at the support plate, thereby improving purification efficiency. The device is easy to maintain and highly practical.

[0010] As a further description of the above technical solution:

[0011] The anti-blocking mechanism includes a sliding round rod, the outer side of which is slidably connected to the inside of the support plate. One outer end of the sliding round rod is fixedly connected to an impact plate, and the other outer end of the sliding round rod is rotatably connected to a connecting rod. A drive assembly is fixedly connected to the top inside the housing.

[0012] The above solution involves the drive component driving the connecting rod to swing, causing the sliding rod to slide back and forth along the support plate. The impact plate continuously strikes the surface of the support plate, preventing impurities from accumulating and clogging. This mechanism automatically removes the attached substances, maintains smooth airflow, reduces the frequency of manual maintenance, improves the continuous operation capability of the purification device, and ensures stable waste gas treatment efficiency.

[0013] As a further description of the above technical solution:

[0014] The limiting component includes a cover plate, which is rotatably connected to the top of the housing. A fixed slide is fixedly connected to the top of the housing, and a limiting plate is slidably connected inside the fixed slide. The limiting plate is slidably connected to the inside of the cover plate.

[0015] The above solution allows for easy opening and closing of the cover for filter installation. The limiting plate inside the fixed slide can slide and lock along the cover slot. The limiting component fixes the cover by limiting, preventing the cover from loosening due to airflow impact inside the housing, ensuring the filter is installed securely. At the same time, it is easy to operate and improves the sealing performance and maintenance convenience of the device.

[0016] As a further description of the above technical solution:

[0017] The drive assembly includes a motor, which is externally fixedly connected to the top side of the housing. A disk is fixedly connected to the drive end of the motor, and the connecting rod is externally rotatably connected to the inside of the disk.

[0018] The above solution involves a motor driving a disc to rotate, which in turn causes a connecting rod to move in a circular motion, making the sliding rod slide back and forth. The impact frequency can be controlled by adjusting the motor speed to adapt to different working conditions. This automatically drives the impact plate to clear blockages, reducing manual intervention and improving the automation level and continuous operational reliability of the purification device.

[0019] As a further description of the above technical solution:

[0020] The top of the compression spring is fixedly connected to the bottom of the connecting block, and the bottom of the compression spring is fixedly connected to the inside of the fixing base.

[0021] The above solution provides a restoring force through elastic deformation, allowing the sliding frame to slide stably along the guide rod. When the filter screen is disassembled, the spring pushes the connecting block upward. During installation, pressing the sliding frame compresses the spring, making the operation simple, enabling quick disassembly and assembly of the filter screen, reducing maintenance time, and improving the ease of use and stability of the device.

[0022] As a further description of the above technical solution:

[0023] The front end of the box is provided with an air inlet, the inside of the box is provided with an air outlet, a water inlet pipe is fixedly connected to the top side of the inside of the box, and a control valve is provided on the outside of the water inlet pipe.

[0024] The above solution involves: an air inlet and an air outlet in the housing to form a waste gas flow path; a water inlet pipe connected to an external water source; and a control valve to adjust the water flow.

[0025] As a further description of the above technical solution:

[0026] A water outlet pipe is fixedly connected to the front of the inside of the box, and a control valve is provided on the outside of the water outlet pipe.

[0027] The above scheme allows for the discharge of water that has undergone heat exchange with the exhaust gas during the purification process via control valve two.

[0028] As a further description of the above technical solution:

[0029] A heat exchange pipe is fixedly connected to the outside of the water inlet pipe and the outside of the water outlet pipe, and a guide plate is fixedly connected to the inside of the box.

[0030] The above solution allows the guide plate to guide the flow path of the exhaust gas inside the chamber, ensuring that the exhaust gas fully contacts the heat exchange tubes.

[0031] In summary, this application includes at least one of the following beneficial technical effects:

[0032] 1. In this utility model, the sliding frame is driven by a compression spring. When the filter screen needs to be removed, the limit plate is pulled to unlock the cover. The sliding frame slides upward under the spring force, and the filter screen can be removed. The reverse operation is performed during installation, which realizes the quick removal and installation of the filter screen. This makes it convenient for staff to maintain and replace the filter screen, effectively reduces maintenance time, and improves the maintainability of the equipment.

[0033] 2. In this utility model, the motor drives the disc to rotate, and the disc, through the connecting rod, causes the sliding rod to reciprocate linearly within the support plate, which in turn causes the impact plate to periodically impact the filter screen. This achieves the effect of preventing filter screen blockage, ensuring the filtration performance of the filter screen, and enabling the device to continuously and stably purify the exhaust gas, thereby improving the overall purification efficiency. Attached Figure Description

[0034] Figure 1 This is a three-dimensional schematic diagram of a heat treatment waste gas purification device proposed in this utility model;

[0035] Figure 2 This is a schematic diagram of the structure of the fixing base of the heat treatment waste gas purification device proposed in this utility model;

[0036] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0037] Figure 4 for Figure 2 Enlarged view at point B in the middle;

[0038] Figure 5 This is a schematic diagram of the heat exchange tube structure of a heat treatment waste gas purification device proposed in this utility model.

[0039] Explanation of reference numerals in the attached drawings: 1. Housing; 2. Fixed base; 3. Quick disassembly mechanism; 31. Sliding frame; 32. Connecting block; 33. Guide rod; 34. Compression spring; 35. Filter screen; 36. Locking rod; 37. Limiting assembly; 371. Cover plate; 372. Fixed slide; 373. Limiting plate; 4. Support plate; 5. Anti-blocking mechanism; 51. Sliding rod; 52. Impact plate; 53. Connecting rod; 54. Drive assembly; 541. Motor; 542. Disc; 6. Air inlet; 7. Air outlet; 8. Water inlet pipe; 9. Control valve one; 10. Water outlet pipe; 11. Control valve two; 12. Guide plate; 13. Heat exchange tube. Detailed Implementation

[0040] The following combination Figures 1-5 This application will be described in further detail below.

[0041] Example: A heat treatment waste gas purification device, referring to... Figures 1 to 3 The device includes a housing 1, which serves as the main outer shell of the entire heat treatment exhaust gas purification device, and plays the role of housing and protecting the internal components. A fixed base 2 is fixedly connected inside the housing 1. The main function of the fixed base 2 is to provide an installation support point for the quick disassembly mechanism 3. The quick disassembly mechanism 3 is installed inside the fixed base 2. The quick disassembly mechanism 3 is used to facilitate the disassembly of the device by the staff. A support plate 4 is fixedly connected to the top side inside the housing 1. The support plate 4 mainly plays the role of supporting and installing the anti-blocking mechanism 5. The anti-blocking mechanism 5 is installed inside the support plate 4.

[0042] The quick-release mechanism 3 includes a sliding frame 31, which is a key moving part of the quick-release mechanism 3. The internal space of the sliding frame 31 is used to accommodate and support the filter screen 35 and the quick-release mechanism 3. The external part of the sliding frame 31 is slidably connected to the inside of the fixed base 2. A connecting block 32 is fixedly connected to the external part of the sliding frame 31, which connects the sliding frame 31 and the guide rod 33. The guide rod 33 is fixedly connected to the inside of the fixed base 2. The guide rod 33 provides precise sliding guidance for the connecting block 32 and the connected sliding frame 31, ensuring that the sliding frame 31 does not shift or shake during the up and down sliding process. The internal part of the connecting block 32 is slidably connected to the external part of the guide rod 33. A compression spring 34 is provided, which is in a certain compressed state to provide an upward elastic force to the sliding frame 31. The top of the compression spring 34 is fixedly connected to the bottom of the connecting block 32, and the bottom of the compression spring 34 is fixedly connected to the inside of the fixing seat 2. A filter screen 35 is slidably connected inside the sliding frame 31. The filter screen 35 can effectively intercept larger particulate impurities in the exhaust gas. A locking rod 36 is fixedly connected to the top of the filter screen 35. The locking rod 36 can be tightly embedded in the slot of the sliding frame 31 to realize the positioning and fixation of the filter screen 35 in the sliding frame 31. The outside of the locking rod 36 is slidably connected to the inside slot of the sliding frame 31. A limiting component 37 is provided on the top of the housing 1 to limit the sliding frame 31.

[0043] The limiting assembly 37 includes a cover plate 371, which is mainly used to close the opening on the top of the housing 1 related to the quick disassembly mechanism 3. The cover plate 371 is externally rotatably connected to the top of the housing 1. A fixed slide 372 is fixedly connected to the top of the housing 1. The fixed slide 372 provides sliding guidance and support for the limiting plate 373, ensuring that the limiting plate 373 can slide stably inside it. The limiting plate 373 is slidably connected inside the fixed slide 372. The limiting plate 373 can be inserted into and removed from the inside of the cover plate 371 during the sliding process, realizing the locking and unlocking of the cover plate 371. The limiting plate 373 is externally slidably connected to the inside of the cover plate 371.

[0044] Specifically, firstly, the exhaust gas passes through the filter screen 35, which intercepts larger particulate impurities in the exhaust gas. When the filter screen 35 needs to be disassembled for maintenance, the limiting plate 373 is pulled out from the cover plate 371 to unlock it. After the cover plate 371 is opened, the sliding frame 31 is no longer restricted by the cover plate 371, and the compression spring 34 restores its deformation and generates elastic force. The elastic force causes the sliding frame 31 to slide upward along the guide rod 33 through the connecting block 32. Then, the filter screen 35 can be removed from the sliding frame 31 by the locking round rod 36. During installation, the filter screen 35 is placed into the sliding frame 31, the sliding frame 31 is pressed into the fixing seat 2, the cover plate 371 is closed, and the limiting plate 373 is pushed into the cover plate 371 to lock it.

[0045] Reference Figure 2 and Figure 4 The anti-clogging mechanism 5 includes a sliding rod 51. Under the action of the drive assembly 54, the sliding rod 51 can reciprocate linearly within the support plate 4. The outer side of the sliding rod 51 is slidably connected to the inside of the support plate 4. An impact plate 52 is fixedly connected to one end of the outer side of the sliding rod 51. The impact plate 52 is used to periodically impact the filter screen 35 under the drive of the sliding rod 51. The impact force loosens and removes the impurities attached to it, thereby preventing clogging. A connecting rod 53 is rotatably connected to the other end of the outer side of the sliding rod 51. The connecting rod 53 is used to transmit the force of the drive assembly 54 to the sliding rod 51. The drive assembly 54 is fixedly connected to the top side of the inside of the housing 1. The drive assembly 54 is used to provide power to the anti-clogging mechanism 5.

[0046] The drive assembly 54 includes a motor 541, which drives the disk 542 to rotate. The motor 541 is externally fixedly connected to the top side of the inside of the housing 1. The drive end of the motor 541 is fixedly connected to the disk 542. The connecting rod 53 converts the circular motion of the disk 542 into the linear reciprocating motion of the sliding rod 51, thereby realizing the periodic impact action of the impact plate 52. The connecting rod 53 is externally rotatably connected to the inside of the disk 542.

[0047] Specifically, the motor 541 drives the disc 542 to rotate, and the disc 542 drives the sliding rod 51 to reciprocate linearly within the support plate 4 via the connecting rod 53. The sliding rod 51 drives the impact plate 52 to periodically impact the filter screen 35, causing the impurities attached to the filter screen 35 to loosen and fall off, preventing the filter screen 35 from becoming clogged.

[0048] Reference Figure 5 The front end of the housing 1 has an air inlet 6, which is the entrance for the heat treatment exhaust gas to enter the purification device. The housing 1 also has an air outlet 7, which is the outlet for the purified exhaust gas to exit the device. A water inlet pipe 8 is fixedly connected to the top inside the housing 1; this pipe is used to introduce water. A control valve 9 is located outside the water inlet pipe 8; this valve controls the opening and closing of the water flow in the water inlet pipe 8 and regulates the flow rate. An outlet pipe 10 is fixedly connected to the front inside the housing 1; this pipe discharges the water after heat exchange. A control valve 2 11 is provided on the outside of the 0. The function of the control valve 2 11 is to control the discharge of water in the outlet pipe 10. A heat exchange pipe 13 is fixedly connected to the outside of the inlet pipe 8 and the outside of the outlet pipe 10. During the heat treatment waste gas purification process, the water flowing in the heat exchange pipe 13 exchanges heat with the waste gas, reduces the waste gas temperature, recovers some heat, improves energy utilization efficiency, and is also beneficial to the subsequent purification process. A guide plate 12 is fixedly connected inside the box 1. The function of the guide plate 12 is to guide the flow path of the waste gas inside the box 1 so that the waste gas can fully contact the heat exchange pipe 13.

[0049] Specifically, exhaust gas enters the housing 1 through the air inlet 6. The guide plate 12 guides the flow of exhaust gas, allowing it to fully contact the heat exchange tube 13. The control valve 1 is opened, and water flows into the heat exchange tube 13 through the water inlet pipe 8 to exchange heat with the exhaust gas and reduce its temperature. The control valve 2 is opened, and water is discharged through the water outlet pipe 10. The exhaust gas, after heat exchange, continues to flow inside the housing 1 and is finally discharged from the device through the air outlet 7.

[0050] The implementation principle of this application embodiment is as follows: heat treatment exhaust gas enters the device through the air inlet 6 at the front end of the box 1. After the exhaust gas enters, it first passes through the guide plate 12. The guide plate 12 guides the exhaust gas to flow evenly to the heat exchange tube 13. The water inlet pipe 8 introduces cold water under the control of the control valve 9. The cold water exchanges heat with the exhaust gas through the heat exchange tube 13 to reduce the temperature of the exhaust gas. At the same time, the cold water becomes hot water. Then the hot water is discharged from the device through the water outlet pipe 10 and the control valve 11.

[0051] The exhaust gas continues to flow inside the housing 1. The filter screen 35 intercepts larger particulate impurities in the exhaust gas. When the filter screen 35 needs maintenance, the limiting plate 373 is pulled out from the cover plate 371 to unlock it. After the cover plate 371 is opened, the sliding frame 31 is no longer restricted by the cover plate 371. The compression spring 34 restores its deformation and generates elastic force. The elastic force causes the sliding frame 31 to slide upward along the guide rod 33 through the connecting block 32. Then, the filter screen 35 can be removed from the sliding frame 31 through the locking round rod 36. During installation, the filter screen 35 is placed into the sliding frame 31, the sliding frame 31 is pressed into the fixing seat 2, the cover plate 371 is closed, and the limiting plate 373 is pushed into the cover plate 371 to lock it.

[0052] The motor 541 of the anti-clogging mechanism 5 drives the disc 542 to rotate. The disc 542 drives the sliding rod 51 to reciprocate linearly within the support plate 4 through the connecting rod 53, so that the impact plate 52 periodically impacts the filter screen 35 to prevent impurities from clogging the filter screen 35. The exhaust gas that has been cooled and filtered is discharged from the device through the outlet 7.

[0053] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A heat treatment waste gas purification device, comprising a housing (1), characterized in that: The box (1) is fixedly connected to a fixed seat (2), and the fixed seat (2) is provided with a quick disassembly mechanism (3). The box (1) is fixedly connected to a support plate (4) on the top side inside, and the support plate (4) is provided with an anti-blocking mechanism (5). The quick disassembly mechanism (3) includes a sliding frame (31), the outside of which is slidably connected to the inside of the fixed base (2), a connecting block (32) is fixedly connected to the outside of the sliding frame (31), a guide rod (33) is fixedly connected to the inside of the fixed base (2), the inside of the connecting block (32) is slidably connected to the outside of the guide rod (33), a compression spring (34) is sleeved on the outside of the guide rod (33), a filter screen (35) is slidably connected to the inside of the sliding frame (31), a locking rod (36) is fixedly connected to the top of the filter screen (35), the outside of the locking rod (36) is slidably connected to the inside slot of the sliding frame (31), and a limiting component (37) is provided on the top of the box (1).

2. The heat treatment waste gas purification device according to claim 1, characterized in that: The anti-blocking mechanism (5) includes a sliding rod (51), the outside of which is slidably connected to the inside of the support plate (4), one end of which is fixedly connected to an impact plate (52), and the other end of which is rotatably connected to a connecting rod (53). The top side of the box (1) is fixedly connected to a drive assembly (54).

3. The heat treatment waste gas purification device according to claim 1, characterized in that: The limiting component (37) includes a cover plate (371), the cover plate (371) is externally rotatably connected to the top of the housing (1), the top of the housing (1) is fixedly connected to a fixed slide (372), the fixed slide (372) is internally slidably connected to a limiting plate (373), and the limiting plate (373) is externally slidably connected to the inside of the cover plate (371).

4. The heat treatment waste gas purification device according to claim 2, characterized in that: The drive assembly (54) includes a motor (541), which is externally fixedly connected to the top side of the inside of the housing (1). The drive end of the motor (541) is fixedly connected to a disc (542), and the externally connected to the connecting rod (53) is rotatably connected to the inside of the disc (542).

5. The heat treatment waste gas purification device according to claim 1, characterized in that: The top of the compression spring (34) is fixedly connected to the bottom of the connecting block (32), and the bottom of the compression spring (34) is fixedly connected to the inside of the fixing seat (2).

6. The heat treatment waste gas purification device according to claim 1, characterized in that: The front end of the box (1) is provided with an air inlet (6), the inside of the box (1) is provided with an air outlet (7), the top side of the inside of the box (1) is fixedly connected with a water inlet pipe (8), and the outside of the water inlet pipe (8) is provided with a control valve (9).

7. The heat treatment waste gas purification device according to claim 6, characterized in that: The front of the box (1) is fixedly connected to a water outlet pipe (10), and a control valve (11) is provided on the outside of the water outlet pipe (10).

8. The heat treatment waste gas purification device according to claim 7, characterized in that: A heat exchange tube (13) is fixedly connected to the outside of the water inlet pipe (8) and the outside of the water outlet pipe (10), and a guide plate (12) is fixedly connected to the inside of the box body (1).

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