Exhaust gas treatment device with waste heat recovery

Abstract

This utility model discloses a waste gas treatment device with waste heat recovery, including a waste gas treatment shell, a waste heat recovery shell for waste gas waste heat recovery provided on the side of the waste gas treatment shell, and the waste heat recovery shell and the waste gas treatment shell are interconnected by a connecting pipe, and the inside of the connecting pipe is provided with an anti-backflow component, and a treatment component for waste gas treatment is installed on the connecting pipe. This utility model realizes the recovery and reuse of waste gas waste heat by setting the waste heat recovery shell on the side of the waste gas treatment shell, thereby improving energy utilization efficiency; a servo motor drives the active bevel gear to rotate, and then the teeth of the driven bevel gear drive the spray head at the bottom of the spray pipe to rotate circumferentially, ensuring that the waste gas and spray liquid are fully mixed, thereby improving the waste gas treatment efficiency; at the same time, the sealing plate and sealing ring in the anti-backflow component in the connecting pipe cooperate to effectively prevent untreated waste gas from flowing back, ensuring the safety and reliability of waste gas treatment.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, and in particular to a waste gas treatment device with waste heat recovery. Background Technology

[0002] Waste gas emissions are a significant environmental issue in industrial production processes. These emissions often contain large amounts of harmful substances such as sulfur dioxide, nitrogen oxides, and particulate matter. If these substances are released directly into the atmosphere without treatment, they will cause serious environmental pollution, affecting ecological balance and human health. Therefore, waste gas treatment technology has become an important research direction in the field of industrial environmental protection.

[0003] Currently, there are various technologies for waste gas treatment, among which spray towers are widely used as a common waste gas treatment device due to their simple structure, convenient operation, and good treatment effect. However, existing spray tower technologies, such as the spray tower body for waste gas treatment disclosed in CN222342485U, while achieving a certain degree of waste gas purification, still have some shortcomings. Specifically, this technical solution is not convenient for recovering and reusing the waste heat of the waste gas, resulting in energy waste; at the same time, during the contact process between waste gas and spray liquid, due to the limitations of the spraying method and structure, it is difficult to ensure uniform contact between waste gas and spray liquid, thereby reducing the waste gas treatment efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a waste gas treatment device with waste heat recovery. By setting a waste heat recovery shell on the side of the waste gas treatment shell, the waste heat of the waste gas can be recovered and reused, thereby improving energy utilization efficiency. A servo motor drives the active bevel gear to rotate, and then the driven bevel gear, under the meshing of its teeth, drives the spray head at the bottom of the spray pipe to rotate circumferentially, ensuring that the waste gas and spray liquid are fully mixed, thereby improving the waste gas treatment efficiency. At the same time, the sealing plate and sealing ring in the anti-backflow component in the connecting pipe cooperate to effectively prevent the backflow of untreated waste gas, ensuring the safety and reliability of waste gas treatment.

[0005] To achieve the above objectives, the main technical solutions adopted by this utility model include: A waste gas treatment device with waste heat recovery includes: The exhaust gas treatment housing has a waste heat recovery housing on its side for recovering waste heat from the exhaust gas. The waste heat recovery housing and the exhaust gas treatment housing are connected to each other through a connecting pipe. The connecting pipe is equipped with an anti-backflow component, and a treatment component for exhaust gas treatment is installed on the connecting pipe.

[0006] In the aforementioned waste gas treatment device with waste heat recovery, a waste gas inlet pipe is installed on the side of the waste heat recovery shell away from the waste gas treatment shell, a hot water inlet pipe is installed on the top side of the waste heat recovery shell, and a hot water outlet pipe is installed on the other side of the bottom of the waste heat recovery shell. The hot water inlet pipe and the hot water outlet pipe are interconnected by a spiral pipe.

[0007] In the aforementioned waste gas treatment device with waste heat recovery, an exhaust pipe is installed at the top of the side of the waste gas treatment shell, and a slag discharge pipe is installed at the bottom of the side of the exhaust pipe.

[0008] In the aforementioned waste gas treatment device with waste heat recovery, a flow guide plate is installed at the bottom of the inner wall of the waste gas treatment shell, corresponding to the position of the slag discharge pipe.

[0009] In the aforementioned waste gas treatment device with waste heat recovery, the anti-backflow component includes a sealing ring fixedly connected to the inner wall of the waste gas treatment housing, a movable sealing plate provided on the side of the sealing ring, an elastic telescopic component fixedly connected to the side of the sealing plate, and the side of the elastic telescopic component being installed on the inner wall of the connecting pipe via a mounting rod.

[0010] In the aforementioned waste gas treatment device with waste heat recovery, the elastic telescopic component includes a sealing shell fixedly connected to the side of the sealing plate, a connecting spring fixedly connected to the inner wall of the sealing shell, a connecting slide rod fixedly connected to the other end of the connecting spring, and the side of the connecting slide rod near the mounting rod fixedly connected to the side of the mounting rod.

[0011] The aforementioned waste gas treatment device with waste heat recovery includes a treatment component comprising a mounting frame installed on the waste gas treatment housing, a spray pump mounted on the mounting frame, a spray pipe rotatably mounted on the bottom of the spray pump via a rotary joint, and a spray head for waste gas treatment mounted on the bottom of the spray pipe.

[0012] In the aforementioned waste gas treatment device with waste heat recovery, a limiting bearing sleeve is rotatably installed on the spray pipe, a limiting connecting rod is fixedly connected to the side of the limiting bearing sleeve, and the other end of the limiting connecting rod is fixedly connected to the inner wall of the waste gas treatment housing.

[0013] In the aforementioned waste gas treatment device with waste heat recovery, a servo motor is fixedly connected to the side of the mounting frame, an active bevel gear is fixedly connected to the output shaft of the servo motor, and a driven bevel gear matching the active bevel gear is installed on the spray pipe at a position corresponding to the active bevel gear.

[0014] This utility model has at least the following beneficial effects: 1. This utility model realizes a waste gas treatment device with waste heat recovery. By setting a waste heat recovery shell on the side of the waste gas treatment shell, the waste heat of the waste gas can be recovered and reused, thereby improving energy utilization efficiency. A servo motor drives the active bevel gear to rotate, and then the driven bevel gear meshes with the teeth to drive the spray head at the bottom of the spray pipe to rotate circumferentially, ensuring that the waste gas and spray liquid are fully mixed, thereby improving the waste gas treatment efficiency. At the same time, the sealing plate and sealing ring in the anti-backflow component in the connecting pipe cooperate to effectively prevent the backflow of untreated waste gas, ensuring the safety and reliability of waste gas treatment.

[0015] 2. Waste Heat Recovery and Reuse: By installing a waste heat recovery shell on the side of the waste gas treatment shell, the heat generated when the waste gas is introduced is used to heat the hot water inside the spiral tube, thus realizing the recovery and reuse of waste heat from the waste gas. This design not only improves energy efficiency and reduces production costs, but also helps to reduce thermal pollution to the environment.

[0016] 3. Thorough mixing of exhaust gas and spray liquid: A servo motor drives the active bevel gear to rotate, and the meshing of the driven bevel gear drives the spray head at the bottom of the spray pipe to rotate circumferentially. This design ensures that the spray liquid is evenly and comprehensively sprayed onto the exhaust gas, guaranteeing thorough mixing of the exhaust gas and the spray liquid, thereby improving the treatment efficiency and quality of the exhaust gas.

[0017] 4. Anti-backflow design: An anti-backflow component is installed inside the connecting pipe. Through the cooperation of the sealing plate and the sealing ring, the function of unidirectional flow of waste gas into the waste gas treatment shell is realized. When the waste gas inside the waste heat recovery shell stops flowing in, the sealing plate will automatically block the sealing ring under the elastic force of the connecting spring, effectively preventing the backflow of untreated waste gas and ensuring the safety and reliability of waste gas treatment. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the waste gas treatment device with waste heat recovery according to this utility model; Figure 2 This is a cross-sectional structural diagram of the waste gas treatment device with waste heat recovery according to this utility model; Figure 3 This is a schematic diagram of the structure of the waste heat recovery shell in the waste gas treatment device with waste heat recovery of this utility model; Figure 4 This is a schematic diagram of the structure of the waste gas treatment shell in the waste gas treatment device with waste heat recovery of this utility model; Figure 5This is a schematic diagram of the connecting pipe in the waste gas treatment device with waste heat recovery according to this utility model; Figure 6 This is a schematic diagram of the elastic telescopic component in the waste gas treatment device with waste heat recovery of this utility model; Figure 7 This is a schematic diagram of the structure of the treatment components in the waste gas treatment device with waste heat recovery according to this utility model.

[0019] Explanation of icon numbers: 1. Waste heat recovery shell; 2. Exhaust gas treatment shell; 3. Connecting pipe; 4. Treatment components; 101. Exhaust gas inlet pipe; 102. Hot water inlet pipe; 1021. Hot water outlet pipe; 1022. Spiral pipe; 201. Exhaust pipe; 202. Slag discharge pipe; 203. Drainage ramp; 301, sealing ring; 3011, sealing plate; 302. Mounting rod; 3021. Flexible telescopic assembly; 303, Sealing housing; 3031, Connecting spring; 3032, Connecting slide rod; 401. Mounting bracket; 4011. Spray pump; 4012. Rotary joint; 4013. Spray pipe; 4014. Spray head; 402. Limit bearing sleeve; 4021. Limit connecting rod; 403. Servo motor; 4031. Driving bevel gear; 4032. Driven bevel gear. Detailed Implementation

[0020] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0021] Please refer to Figures 1 to 7 As shown, an embodiment of the present invention provides a waste gas treatment device with waste heat recovery, comprising: a waste gas treatment shell 2, a waste heat recovery shell 1 for waste gas waste heat recovery provided on the side of the waste gas treatment shell 2, the waste heat recovery shell 1 and the waste gas treatment shell 2 being interconnected by a connecting pipe 3, and an anti-backflow component being provided inside the connecting pipe 3, and a treatment component 4 for waste gas treatment being installed on the connecting pipe 3; By adopting the above technical solution, a waste heat recovery shell 1 is set on the side of the waste gas treatment shell 2 to realize the recovery and reuse of waste heat from the waste gas, thereby improving energy utilization efficiency. The servo motor 403 drives the active bevel gear 4031 to rotate, and then, under the meshing of the teeth of the driven bevel gear 4032, drives the spray head 4014 at the bottom of the spray pipe 4013 to rotate circumferentially, ensuring that the waste gas and the spray liquid are fully mixed, thereby improving the waste gas treatment efficiency. At the same time, the sealing plate 3011 and the sealing ring 301 in the anti-backflow component in the connecting pipe 3 cooperate to effectively prevent the backflow of untreated waste gas, ensuring the safety and reliability of waste gas treatment.

[0022] To achieve efficient recovery and utilization of waste heat from exhaust gas, in this embodiment: an exhaust gas inlet pipe 101 is installed on the side of the waste heat recovery shell 1 away from the exhaust gas treatment shell 2; a hot water inlet pipe 102 is installed on one side of the top of the waste heat recovery shell 1; and a hot water outlet pipe 1021 is installed on the other side of the bottom of the waste heat recovery shell 1. The hot water inlet pipe 102 and the hot water outlet pipe 1021 are interconnected by a spiral pipe 1022. This design allows the hot water in the spiral pipe 1022 to be heated before the exhaust gas enters the exhaust gas treatment shell 2, thereby realizing the recovery and reuse of waste heat, improving energy utilization efficiency, and reducing production costs.

[0023] In order to achieve the discharge of treated waste gas and the cleaning of waste residue, in this embodiment: an exhaust pipe 201 is installed on the top of the side of the waste gas treatment housing 2, and a slag discharge pipe 202 is installed on the bottom of the side of the exhaust pipe 201. The exhaust pipe 201 is used to discharge the treated waste gas, while the slag discharge pipe 202 facilitates the cleaning of waste residue generated during the waste gas treatment process, ensuring the continuous and stable operation of the device.

[0024] To facilitate the collection and discharge of waste residue, in this embodiment, a flow guide plate 203 is installed at the bottom of the inner wall of the waste gas treatment housing 2 and at the position corresponding to the slag discharge pipe 202. The design of the flow guide plate 203 allows the waste residue to slide smoothly to the slag discharge pipe 202, which is convenient for cleaning and improves the ease of maintenance of the device.

[0025] To prevent the backflow of untreated waste gas and ensure treatment safety, in this embodiment: the anti-backflow component includes a sealing ring 301 fixedly connected to the inner wall of the waste gas treatment housing 2. A movable sealing plate 3011 is provided on the side of the sealing ring 301. An elastic telescopic component 3021 is fixedly connected to the side of the sealing plate 3011. The side of the elastic telescopic component 3021 is installed on the inner wall of the connecting pipe 3 via an installation rod 302. The elastic telescopic component 3021 includes a sealing shell 303 fixedly connected to the side of the sealing plate 3011. A connecting spring 3031 is fixedly connected to the inner wall of the sealing shell 303. A connecting slide rod 3032 is fixedly connected to the other end of the connecting spring 3031. The side of the connecting slide rod 3032 closest to the installation rod 302 is fixedly connected to the side of the installation rod 302. When the waste gas stops flowing in, the sealing plate 3011 automatically blocks the sealing ring 301 under the action of the elastic telescopic component 3021, effectively preventing the backflow of untreated waste gas and ensuring the safety and reliability of waste gas treatment.

[0026] To achieve uniform spraying of the spray liquid and improve treatment efficiency, in this embodiment: the treatment component 4 includes a mounting bracket 401 installed on the waste gas treatment housing 2. A spray pump 4011 is installed on the mounting bracket 401. A spray pipe 4013 is rotatably installed on the bottom of the spray pump 4011 through a rotary joint 4012. A spray head 4014 for waste gas treatment is installed on the bottom of the spray pipe 4013. The spray pump 4011 delivers the spray liquid to the spray head 4014, thereby achieving uniform spraying of the spray liquid and improving the treatment efficiency of the waste gas.

[0027] To ensure the stable rotation of the spray pipe 4013 and improve the spraying effect, in this embodiment: a limiting bearing sleeve 402 is rotatably installed on the spray pipe 4013, and a limiting connecting rod 4021 is fixedly connected to the side of the limiting bearing sleeve 402. The other end of the limiting connecting rod 4021 is fixedly connected to the inner wall of the exhaust gas treatment housing 2. The design of the limiting bearing sleeve 402 and the limiting connecting rod 4021 ensures the stability of the spray pipe 4013 during rotation and improves the spraying effect.

[0028] To achieve circumferential rotation of the spray head 4014 and ensure thorough mixing of the spray liquid and exhaust gas, in this embodiment: a servo motor 403 is fixedly connected to the side of the mounting bracket 401, and an active bevel gear 4031 is fixedly connected to the output shaft of the servo motor 403. A driven bevel gear 4032 matching the active bevel gear 4031 is installed on the spray pipe 4013 at a position corresponding to the active bevel gear 4031. The servo motor 403 drives the active bevel gear 4031 to rotate, and under the meshing action of the teeth of the driven bevel gear 4032, the spray head 4014 at the bottom of the spray pipe 4013 rotates circumferentially, ensuring thorough mixing of the spray liquid and exhaust gas, thereby improving the exhaust gas treatment efficiency.

[0029] The working principle of this utility model is as follows: By setting a waste heat recovery shell 1 on the side of the waste gas treatment shell 2, the heat generated when the waste gas enters through the waste gas inlet pipe 101 is used to heat the hot water in the spiral tube 1022, thereby realizing the recovery and reuse of waste heat. The heated hot water is discharged from the hot water outlet pipe 1021 for use in other production processes, improving energy utilization efficiency. At the same time, the waste gas after waste heat utilization is introduced into the waste gas treatment shell 2 through the connecting pipe 3. Under the action of the spray pump 4011, the spray liquid is transported to the spray head 4014. At this time, the servo motor 403 drives the active bevel gear 4031 to rotate, and under the meshing action of the driven bevel gear 4032, drives the spray head 4014 at the bottom of the spray pipe 4013 to rotate circumferentially, ensuring that the spray liquid and waste gas are fully mixed, thereby improving the waste gas treatment efficiency. Furthermore, an anti-backflow component is installed inside the connecting pipe 3. When exhaust gas enters the exhaust gas treatment housing 2 from the waste heat recovery housing 1, it squeezes the sealing plate 3011, causing it to detach from the sealing ring 301, ensuring smooth passage of exhaust gas. When the exhaust gas stops flowing in, the sealing plate 3011 automatically resets under the action of the elastic telescopic component 3021, blocking the sealing ring 301, effectively preventing the backflow of untreated exhaust gas and ensuring the safety and reliability of exhaust gas treatment.

[0030] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. An exhaust gas treatment device with waste heat recovery, comprising an exhaust gas treatment housing (2), characterized in that The waste heat recovery shell (1) for waste heat recovery is provided on the side of the waste gas treatment shell (2). The waste heat recovery shell (1) and the waste gas treatment shell (2) are connected to each other through a connecting pipe (3). The connecting pipe (3) is provided with an anti-backflow component. The connecting pipe (3) is equipped with a treatment component (4) for waste gas treatment. The waste heat recovery shell (1) is equipped with a waste gas inlet pipe (101) on the side away from the waste gas treatment shell (2), a hot water inlet pipe (102) is installed on one side of the top of the waste heat recovery shell (1), and a hot water outlet pipe (1021) is installed on the other side of the bottom of the waste heat recovery shell (1). The hot water inlet pipe (102) and the hot water outlet pipe (1021) are connected to each other through a spiral pipe (1022). An exhaust pipe (201) is installed on the top side of the exhaust gas treatment housing (2), and a slag discharge pipe (202) is installed on the bottom side of the exhaust pipe (201). A flow guide plate (203) is installed at the bottom of the inner wall of the waste gas treatment housing (2) and at the position corresponding to the slag discharge pipe (202).

2. The exhaust gas treatment device with waste heat recovery according to claim 1, characterized in that: The backflow prevention assembly includes a sealing ring (301) fixedly connected to the inner wall of the exhaust gas treatment housing (2). A movable sealing plate (3011) is provided on the side of the sealing ring (301). An elastic telescopic assembly (3021) is fixedly connected to the side of the sealing plate (3011). The side of the elastic telescopic assembly (3021) is installed on the inner wall of the connecting pipe (3) by a mounting rod (302).

3. The exhaust gas treatment device with waste heat recovery according to claim 2, characterized in that: The elastic telescopic assembly (3021) includes a sealing shell (303) fixedly connected to the side of the sealing plate (3011). A connecting spring (3031) is fixedly connected to the inner wall of the sealing shell (303). A connecting slide rod (3032) is fixedly connected to the other end of the connecting spring (3031). The side of the connecting slide rod (3032) near the mounting rod (302) is fixedly connected to the side of the mounting rod (302).

4. The exhaust gas treatment device with waste heat recovery according to claim 3, characterized in that: The processing assembly (4) includes a mounting bracket (401) installed on the exhaust gas treatment housing (2), a spray pump (4011) is installed on the mounting bracket (401), a spray pipe (4013) is rotatably installed on the bottom of the spray pump (4011) via a rotary joint (4012), and a spray head (4014) for exhaust gas treatment is installed on the bottom of the spray pipe (4013).

5. The exhaust gas treatment device with waste heat recovery according to claim 4, characterized in that: A limiting bearing sleeve (402) is rotatably installed on the spray pipe (4013). A limiting connecting rod (4021) is fixedly connected to the side of the limiting bearing sleeve (402), and the other end of the limiting connecting rod (4021) is fixedly connected to the inner wall of the waste gas treatment housing (2).

6. The exhaust gas treatment device with waste heat recovery according to claim 5, characterized in that: A servo motor (403) is also fixedly connected to the side of the mounting bracket (401). An active bevel gear (4031) is fixedly connected to the output shaft of the servo motor (403). A driven bevel gear (4032) that matches the active bevel gear (4031) is installed on the spray pipe (4013) at a position corresponding to the active bevel gear (4031).

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