Rotary RTO waste gas purification treatment device with waste heat recovery function

Abstract

The utility model relates to the field of purification treatment devices, in particular to a rotary RTO waste gas purification treatment device with a waste heat recovery function, which comprises a first waste gas treatment tank, a second waste gas treatment tank, a combustion bin, a first guide box, a second guide box, a gas inlet pipe and a discharge pipe, according to the utility model, the control box is arranged on the first waste gas treatment tank and the second waste gas treatment tank from bottom to top in a surrounding manner, so that preheating and pre-combustion treatment can be carried out, the internal temperature is kept at a certain constant temperature, and excessive heat loss is avoided; impurities are filtered and airflow heat flow is retained along with rotation, the overall waste heat recovery performance is improved, and the overall waste gas treatment effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of purification treatment devices, in particular to a rotary RTO waste gas purification treatment device with waste heat recovery function. Background Art

[0002] RTO waste gas purification treatment, that is, the process of purifying waste gas using a regenerative thermal oxidizer, is an efficient waste gas treatment technology. This technology is mainly used to treat volatile organic compounds (VOCs) and other harmful gases in industrial emissions. Through thermal oxidation reaction, harmful substances in the waste gas are converted into harmless carbon dioxide and water vapor, so as to achieve the purpose of purifying the waste gas.

[0003] The operating cost of RTO technology is relatively high, mainly because it needs to consume a large amount of fuel and electricity to maintain the high-temperature incineration process. Especially when the concentration of organic matter in the waste gas is low, additional auxiliary fuel may be required to ensure the combustion temperature, improve the internal energy efficiency, thus increasing the operating cost. And some components in the waste gas (such as halogen waste gas) may produce strong acids after combustion, causing corrosion to the equipment and increasing the overall combustion energy consumption of the equipment.

[0004] Therefore, for the above-mentioned RTO waste gas purification treatment device, since it needs to consume a large amount of fuel and electricity to maintain the high-temperature incineration process, especially when the concentration of organic matter in the waste gas is low, additional auxiliary fuel may be required to ensure the combustion temperature, improve the internal energy efficiency, thus increasing the operating cost. And some components in the waste gas (such as halogen waste gas) may produce strong acids after combustion, causing corrosion to the equipment and increasing the overall combustion energy consumption of the equipment. A rotary RTO waste gas purification treatment device with waste heat recovery function can be designed, and a multi-layer filtration structure and a waste heat recovery structure can be added to improve the combustion effect of the overall RTO waste gas purification treatment device. Summary of the Utility Model

[0005] In order to overcome the problems of the RTO waste gas purification treatment device, when the concentration of organic matter in the waste gas is low, additional auxiliary fuel may be required to ensure the combustion temperature, thus increasing the operating cost. And some components in the waste gas (such as halogen waste gas) may produce strong acids after combustion, causing corrosion to the equipment and increasing the overall combustion energy consumption of the equipment.

[0006] The technical solution of the present utility model is: a rotary RTO waste gas purification and treatment device with waste heat recovery function, including a first waste gas treatment tank, a second waste gas treatment tank, a combustion chamber, a first guiding box, a second guiding box, an intake pipe and an exhaust pipe; the first waste gas treatment tank and the second waste gas treatment tank are used to guide the waste gas purification and treatment for waste heat recovery, and the first waste gas treatment tank and the second waste gas treatment tank are arranged vertically and parallel to each other. A combustion chamber for purifying and burning the RTO waste gas is connected between the tops of the first waste gas treatment tank and the second waste gas treatment tank. The lower ends of the first waste gas treatment tank and the second waste gas treatment tank are respectively provided with a first guiding box and a second guiding box for guiding waste gas. The outer end of the first guiding box is provided with an intake pipe for waste gas to enter, and the outer end of the second guiding box is provided with an exhaust pipe for waste gas to be discharged. Control boxes are arranged around the first waste gas treatment tank and the second waste gas treatment tank from bottom to top. A rotating rod is arranged inside the first waste gas treatment tank and the second waste gas treatment tank, and a high-temperature sheath is sleeved outside the rotating rod. Ceramic packing beds and filtering fan blades are linearly staggered on the high-temperature sheath.

[0007] Preferably, through the control boxes arranged around the first waste gas treatment tank and the second waste gas treatment tank from bottom to top, preheating and pre-combustion treatment can be carried out to keep the internal temperature at a certain constant temperature and avoid excessive heat loss. The ceramic packing beds and the filtering fan blades are linearly staggered on the high-temperature sheath. As the rotation progresses, impurities are filtered and the heat flow of the air flow is retained, improving the overall waste heat recovery performance and increasing the overall waste gas treatment effect.

[0008] As a preference, the first waste gas treatment tank and the second waste gas treatment tank are set with the same structure. An air exchange slot is opened at the outer end of the control box. A controller is arranged inside the control box. One end of the controller is electrically connected with a combustion flame burner. A spray nozzle extending into the first waste gas treatment tank is arranged at the center of the controller. An injector is arranged inside the spray nozzle. A diversion chamber connected to the combustion chamber is arranged at the upper ends of the first waste gas treatment tank and the second waste gas treatment tank. A sealing ring is arranged inside the diversion chamber. Through the sealing ring, the overall sealing effect can be improved.

[0009] As a preference, heat storage retention holes are distributed on the ceramic packing beds, and filtering holes are evenly distributed on the filtering fan blades. A driving motor is arranged at one end of the rotating rod. The driving motor drives the rotating rod to drive the ceramic packing beds and the filtering fan blades to rotate. By driving the rotating rod by the driving motor to drive the ceramic packing beds and the filtering fan blades to rotate, the overall air flow is improved, and the waste heat recovery and filtering performance are increased.

[0010] Preferably, the combustion chamber includes a chamber body, electromagnetic control valves, a first combustion control end, and a second combustion control end. Electromagnetic control valves connected to the first guiding box and the second guiding box are provided at both ends of the chamber body. The first combustion control end and the second combustion control end for controlling combustion are provided on both sides and the top of the chamber body. Through the two groups of electromagnetic control valves, separate operations can be carried out, with one group opened and the other group closed, increasing the airtight combustion performance of the combustion chamber.

[0011] Preferably, both the first combustion control end and the second combustion control end include a box body, a spray pipe, an ignition transformer, a damper controller, and a first fan. A plurality of groups of spray pipes extending into the chamber body are horizontally linearly arranged inside the box body. An ignition transformer is provided on the box body. A first fan is provided at one end of the box body. A damper controller is provided inside the first fan. A sprayer is provided inside the spray pipe. The sprayer can spray out flames for combustion operations.

[0012] Preferably, second fans are provided inside both the first guiding box and the second guiding box. A fan motor is provided at the rear end of the second fan. A heat insulation sleeve is sleeved outside the first guiding box and the second guiding box. A temperature sensor is provided inside the first guiding box and the second guiding box. A display screen is provided at the outer end of the temperature sensor. The internal temperature change is fed back to the display screen through the temperature sensor.

[0013] Preferably, inner pipes are provided at the centers of the internal parts of the intake pipe and the discharge pipe. A sealing gap layer for embedding and sealing operations is provided between the inner pipe and the intake pipe and the discharge pipe. The connection tightness effect can be increased through the sealing gap layer.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. Different from the past, the first waste gas treatment tank and the second waste gas treatment tank can be used to guide the waste gas purification treatment for waste heat recovery. The combustion chamber is communicatively arranged between the tops of the first waste gas treatment tank and the second waste gas treatment tank and can be used for RTO waste gas purification combustion treatment. The control box is arranged around the first waste gas treatment tank and the second waste gas treatment tank from bottom to top and can be used for preheating and pre-combustion treatment to keep the internal temperature at a certain constant temperature, avoiding excessive heat loss. The ceramic packing bed and the filtering fan blades are linearly staggered on the high-temperature sheath. As they rotate, impurities are filtered and the air flow and heat flow are retained, improving the overall waste heat recovery performance and increasing the overall waste gas treatment effect.

[0016] 2. When processing, the intake pipe is clamped to the air pipe by the sealed gap layer. The fan motor drives the second fan to make the air flow rapidly through the first guiding box and into the first waste gas treatment tank. The driving motor drives the rotating rod to drive the ceramic packing bed and the filtering fan blade plate to rotate forward, so that the waste gas is filtered by the filtering holes on the filtering fan blade plate to remove impurities. The controller drives the combustion burner to eject flames through the injector and the injection nozzle to burn and decompose the impurities. The hot gas flows through the heat storage retention holes and passes through the ceramic packing bed to retain the heat flow, improving the overall waste heat recovery effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure shows a schematic diagram of the overall structure of the RTO waste gas purification and treatment device of the present invention;

[0018] Figure 2 The figure shows a schematic diagram of the structure of the first waste gas treatment tank of the RTO waste gas purification and treatment device of the present invention;

[0019] Figure 3 The figure shows a schematic diagram of the exploded structure of the first waste gas treatment tank of the RTO waste gas purification and treatment device of the present invention;

[0020] Figure 4 The figure shows a schematic diagram of the structure of the combustion chamber of the RTO waste gas purification and treatment device of the present invention;

[0021] Figure 5 The figure shows a schematic diagram of the structure of the first guiding box of the RTO waste gas purification and treatment device of the present invention.

[0022] Description of the reference numerals: 1. First waste gas treatment tank; 2. Second waste gas treatment tank; 3. Combustion chamber; 4. First guiding box; 5. Second guiding box; 6. Intake pipe; 7. Discharge pipe; 101. Injection nozzle; 102. Control box; 103. Combustion burner; 104. Ventilation slot; 105. Rotating rod; 106. High-temperature sheath; 107. Ceramic packing bed; 108. Filtering fan blade plate; 109. Heat storage retention hole; 110. Filtering hole; 111. Sealing ring; 112. Diversion chamber; 113. Driving motor; 301. Chamber body; 302. Electromagnetic control valve; 303. First combustion control end; 304. Second combustion control end; 305. Box body; 306. Injection pipe; 307. Ignition transformer; 308. Damper controller; 309. First fan; 401. Display screen; 402. Heat insulation sleeve; 403. Second fan; 404. Fan motor; 601. Inner pipe; 602. Sealed gap layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present invention will be further described below with reference to the drawings and embodiments.

[0024] Please refer to Figures 1-5, the present utility model provides an embodiment: a rotary RTO waste gas purification and treatment device with waste heat recovery function, including a first waste gas treatment tank 1, a second waste gas treatment tank 2, a combustion chamber 3, a first guiding box 4, a second guiding box 5, an intake pipe 6 and an exhaust pipe 7; the first waste gas treatment tank 1 and the second waste gas treatment tank 2 are used to guide the waste gas purification and treatment for waste heat recovery, the first waste gas treatment tank 1 and the second waste gas treatment tank 2 are arranged vertically and parallel to each other, a combustion chamber 3 for purifying and burning the RTO waste gas is communicated between the tops of the first waste gas treatment tank 1 and the second waste gas treatment tank 2, the lower ends of the first waste gas treatment tank 1 and the second waste gas treatment tank 2 are respectively provided with a first guiding box 4 and a second guiding box 5 for guiding waste gas, the outer end of the first guiding box 4 is provided with an intake pipe 6 for waste gas to enter, the outer end of the second guiding box 5 is provided with an exhaust pipe 7 for waste gas to be discharged, a control box 102 is arranged around the first waste gas treatment tank 1 and the second waste gas treatment tank 2 from bottom to top, a rotating rod 105 is arranged inside the first waste gas treatment tank 1 and the second waste gas treatment tank 2, a high-temperature sheath 106 is sleeved outside the rotating rod 105, and ceramic packing beds 107 and filtering fan blades 108 are linearly and alternately arranged on the high-temperature sheath 106.

[0025] Please refer to Figures 2-3 , in this embodiment, the first waste gas treatment tank 1 and the second waste gas treatment tank 2 are arranged with the same structure. An air exchange slot 104 is opened at the outer end of the control box 102. A controller is arranged inside the control box 102. The model of the controller is R4343D. One end of the controller is electrically connected with a combustion flame burner 103. The model of the combustion flame burner 103 is G20LC. A spray nozzle 101 extending into the first waste gas treatment tank 1 is arranged at the center of the controller. An injector is arranged inside the spray nozzle 101. The upper ends of the first waste gas treatment tank 1 and the second waste gas treatment tank 2 are provided with a diversion chamber 112 connected to the combustion chamber 3. A sealing ring 111 is arranged inside the diversion chamber 112. Through the sealing ring 111, the overall sealing effect can be improved. Heat storage retention holes 109 are distributed on the ceramic packing bed 107. Filtering holes 110 are evenly arranged on the filtering fan blades 108. One end of the rotating rod 105 is provided with a driving motor 113. The driving motor 113 drives the rotating rod 105 to drive the ceramic packing bed 107 and the filtering fan blades 108 to rotate. By driving the rotating rod 105 by the driving motor 113 to drive the ceramic packing bed 107 and the filtering fan blades 108 to rotate, the overall air flow is improved, and the waste heat recovery and filtering performance are increased.

[0026] Please refer to Figures 3-5, in this embodiment, the combustion chamber 3 includes a chamber body 301, an electromagnetic control valve 302, a first combustion control end 303 and a second combustion control end 304. The electromagnetic control valves 302 connected to the first guiding box 4 and the second guiding box 5 are provided at both ends of the chamber body 301. The first combustion control end 303 and the second combustion control end 304 for controlling combustion are provided on both sides and the top of the chamber body 301. Through the two groups of electromagnetic control valves 302, separate operations are carried out, one group is opened and the other group is closed, improving the airtight combustion performance of the combustion chamber 3. The first combustion control end 303 and the second combustion control end 304 both include a box body 305, a spray pipe 306, an ignition transformer 307, a damper controller 308 and a first blower 309. A plurality of groups of spray pipes 306 extending into the chamber body 301 are linearly arranged horizontally inside the box body 305. The ignition transformer 307 is provided on the box body 305, and the model of the ignition transformer 307 is XT-8. A first blower 309 is provided at one end of the box body 305, and a damper controller 308 is provided inside the first blower 309. A sprayer is provided inside the spray pipe 306, and the model of the sprayer is FPH-02C. Flame can be ejected through the sprayer for combustion operation, and the model of the damper controller 308 is SQM40.281A20.

[0027] Please refer to Figures 4-5 , in this embodiment, second blowers 403 are provided inside both the first guiding box 4 and the second guiding box 5. A blower motor 404 is provided at the rear end of the second blower 403. Heat insulation sleeves 402 are sleeved outside the first guiding box 4 and the second guiding box 5. Temperature sensors are provided inside the first guiding box 4 and the second guiding box 5. A display screen 401 is provided at the outer end of the temperature sensor. The model of the temperature sensor is Pt100. The internal temperature change is fed back to the display screen 401 through the temperature sensor. Inner pipes 601 are provided at the centers of the internal parts of the intake pipe 6 and the discharge pipe 7. A sealing gap layer 602 for embedding and sealing operation is provided between the inner pipe 601 and the intake pipe 6 and the discharge pipe 7. The connection tightness effect can be improved through the sealing gap layer 602.

[0028] During operation, the intake pipe 6 is clamped to the air pipe by the sealing gap layer 602. The blower motor 404 drives the second blower 403 to make the air flow rapidly through the first guiding box 4 and enter the first waste gas treatment tank 1. The drive motor 113 drives the rotating rod 105 to drive the ceramic packing bed 107 and the filtering fan blades 108 to rotate forward, so that the waste gas is filtered through the filtering holes 110 on the filtering fan blades 108. The controller drives the combustion flame burner 103 to eject flame through the sprayer and the spray nozzle 101 for impurity combustion and decomposition. The hot gas flows through the heat storage retention holes 109 and passes through the ceramic packing bed 107 for heat retention.

[0029] As the gas rises, two groups of electromagnetic control valves are opened for one-way operation. The air damper controller 308 drives the first fan 309, and then the air surges. The ignition transformer 307 operates, controlling the ejector inside the injection pipe 306 to eject flames for full combustion treatment. The one-way group of electromagnetic control valves is opened. As the gas enters the second waste gas treatment tank 2, the drive motor 113 drives the rotating rod 105 to drive the ceramic packing bed 107 and the filtration fan blades 108 to rotate in the reverse direction. Repeat the above air flow steps to convert them into carbon dioxide and water vapor, which are discharged through the discharge pipe 7 to reach the next structure.

[0030] Through the above steps, through the control box 102, which is arranged in a self-bottom-up circular manner on the first waste gas treatment tank 1 and the second waste gas treatment tank 2, preheating and pre-combustion treatment can be carried out to keep the internal temperature at a certain constant temperature, avoiding excessive heat loss. The ceramic packing bed 107 and the filtration fan blades 108 are linearly staggered on the high-temperature sheath 106. As they rotate, impurities are filtered and the heat flow of the air flow is retained, improving the overall waste heat recovery performance and enhancing the overall waste gas treatment effect.

Claims

1. A rotary RTO waste gas purification device with waste heat recovery function, comprising a first waste gas treatment tank (1); characterized in that: The invention also comprises a second exhaust gas treatment tank (2), a combustion chamber (3), a first guide box (4), a second guide box (5), an intake pipe (6) and an exhaust pipe (7); the first exhaust gas treatment tank (1) and the second exhaust gas treatment tank (2) are used to guide the exhaust gas purification treatment for waste heat recovery; the first exhaust gas treatment tank (1) and the second exhaust gas treatment tank (2) are arranged vertically and in parallel; the tops of the first exhaust gas treatment tank (1) and the second exhaust gas treatment tank (2) are connected to each other and a combustion chamber (3) for purifying and burning the RTO exhaust gas is provided; the lower ends of the first exhaust gas treatment tank (1) and the second exhaust gas treatment tank (2) are respectively provided with exhaust gas guide ports. A first guide box (4) and a second guide box (5), the outer end of the first guide box (4) is provided with an intake pipe (6) for exhaust gas to enter, the outer end of the second guide box (5) is provided with an exhaust pipe (7) for exhaust gas to be discharged, a control box (102) is arranged around the first exhaust gas treatment tank (1) and the second exhaust gas treatment tank (2) from bottom to top, a rotating rod (105) is arranged inside the first exhaust gas treatment tank (1) and the second exhaust gas treatment tank (2), a high-temperature sheath (106) is arranged on the outer side of the rotating rod (105), and a ceramic filler bed (107) and a filter blade plate (108) are linearly staggered on the high-temperature sheath (106).

2. The rotary RTO waste gas purification device with waste heat recovery function according to claim 1 is characterized in that: The first waste gas treatment tank (1) and the second waste gas treatment tank (2) have the same structural arrangement, a ventilation groove (104) is provided at the outer end of a control box (102), a controller is provided inside the control box (102), a combustion flame device (103) is electrically provided at one end of the controller, a jet nozzle (101) is provided in the center of the controller and penetrates into the first waste gas treatment tank (1), a jet is provided inside the jet nozzle (101), a guide chamber (112) connected to a combustion chamber (3) is provided at the upper ends of the first waste gas treatment tank (1) and the second waste gas treatment tank (2), and a sealing ring (111) is provided inside the guide chamber (112).

3. The rotary RTO waste gas purification device with waste heat recovery function according to claim 1 is characterized in that: The ceramic packing bed (107) is provided with heat storage holes (109) distributed thereon, the filter blade plate (108) is provided with filter holes (110) evenly distributed thereon, and a driving motor (113) is provided at one end of the rotating rod (105), and the driving motor (113) drives the rotating rod (105) to drive the ceramic packing bed (107) and the filter blade plate (108) to rotate.

4. The rotary RTO waste gas purification device with waste heat recovery function according to claim 1 is characterized in that: The combustion chamber (3) comprises a chamber body (301), an electromagnetic control valve (302), a first combustion control end (303) and a second combustion control end (304). Both ends of the chamber body (301) are provided with electromagnetic control valves (302) connected to a first guide box (4) and a second guide box (5). Both sides and the top of the chamber body (301) are provided with a first combustion control end (303) and a second combustion control end (304) for controlling combustion.

5. The rotary RTO waste gas purification device with waste heat recovery function according to claim 4 is characterized in that: The first combustion control end (303) and the second combustion control end (304) both include a box body (305), an injection pipe (306), an ignition transformer (307), a damper controller (308) and a first fan (309). A plurality of injection pipes (306) extending into the chamber (301) are arranged in a linear manner on the inner side of the box body (305). An ignition transformer (307) is arranged on the box body (305). A first fan (309) is arranged at one end of the box body (305). A damper controller (308) is arranged inside the first fan (309), and an injector is arranged inside the injection pipe (306).

6. The rotary RTO waste gas purification device with waste heat recovery function according to claim 1 is characterized in that: The first guide box (4) and the second guide box (5) are both provided with a second fan (403) inside, a fan motor (404) is provided at the rear end of the second fan (403), a temperature insulating sleeve (402) is provided on the outer side of the first guide box (4) and the second guide box (5), a temperature sensor is provided inside the first guide box (4) and the second guide box (5), and a display screen (401) is provided at the outer end of the temperature sensor.

7. The rotary RTO waste gas purification device with waste heat recovery function according to claim 1 is characterized in that: An inner tube (601) is provided at the inner center of each of the air inlet pipe (6) and the air outlet pipe (7), and a sealing gap layer (602) for embedding and sealing operation is provided between the inner tube (601) and the air inlet pipe (6) and the air outlet pipe (7).

Images