Waste gas high-temperature incineration waste heat recovery device

Abstract

The utility model relates to the technical field of waste gas treatment equipment, in particular to a waste gas high-temperature incineration waste heat recovery device. The waste gas recycling device comprises a recycling tank, the recycling tank is divided into two cavities through a partition plate, the two cavities are communicated through a gas guide pipe, one cavity is used for incinerating waste gas by arranging a fire spraying barrel, and a heat conduction mechanism is arranged in the other cavity; the water storage sleeve is arranged on the recovery tank in a sleeving mode, water flow is injected into the water storage sleeve through a water inlet pipe, and the heat conduction mechanism transmits gas heat into the water flow in the water storage sleeve; the cleaning assembly is arranged on the heat conduction mechanism; and the dust collecting assembly is arranged on the heat conduction mechanism. The waste gas waste heat recovery efficiency is improved through the heat conduction disc, the fixing ring and the annular heat conduction plate, the cleaning plate is driven by the fan blades and the rotating rod to clean the surface of the heat conduction disc, contact between the heat conduction disc and waste gas is guaranteed, and then the waste gas waste heat absorption effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment equipment, in particular to a waste gas high-temperature incineration waste heat recovery device. Background Art

[0002] With the rapid development of industry, a large amount of waste gas will be generated in the industrial production process. For example, a large amount of waste gas will be generated in the production process using kilns. These waste gases also contain some toxic substances, which will pollute the environment. In order to protect the environment, it is necessary to purify the waste gas before it is discharged. Among the existing treatment technologies, incineration is used to treat the waste gas. However, these waste gases will carry a lot of heat after incineration. If this heat is directly dissipated in the air, it will cause heat and energy waste. Therefore, it is necessary to recover this heat.

[0003] In the prior art, there is a waste heat recovery device for VOC waste gas incineration (Announcement No.: CN218237475U), including a heat exchanger shell, heat exchange plate groups are arranged on both sides of the heat exchanger shell, the heat exchanger shell is provided with a low-temperature medium inlet pipe box, a low-temperature medium outlet pipe box, a high-temperature gas inlet and a high-temperature gas outlet, the high-temperature gas inlet and the high-temperature gas outlet are respectively arranged at both ends of the heat exchanger shell, the low-temperature medium inlet pipe box is arranged on the side of the high-temperature gas outlet, and the low-temperature medium outlet pipe box is arranged on the side of the high-temperature gas inlet. Although the waste heat recovery device for VOC waste gas incineration performs heat exchange with the incinerated waste gas through the internal heat exchange medium channel formed between the metal plate sheet 1 and the metal plate sheet 2 and the low-temperature medium in the device, the heat in the waste gas is transferred to the low-temperature medium, so that the heat in the waste gas can be recovered and reused.

[0004] However, in actual use, these exhaust gases will carry dust. After a long period of operation, the dust will form a dust layer on the surface of metal plate 1 and metal plate 2, affecting the contact between the hot gas and the heat exchange medium, thereby affecting the heat exchange and reducing the heat recovery effect. Utility Model Content

[0005] In view of the problems existing in the background technology, a waste heat recovery device for high-temperature incineration of exhaust gas is proposed.

[0006] The utility model proposes a waste heat recovery device for high-temperature incineration of waste gas, comprising a recovery tank, which is divided into two chambers by a partition, and the two chambers are connected by an air guide pipe, one of the chambers is used for incinerating the waste gas by arranging a flamethrower, and the other chamber is provided with a heat conduction mechanism; a water storage sleeve, which is sleeved on the recovery tank, and water is injected into the water storage sleeve through a water inlet pipe, and the heat conduction mechanism transfers the heat of the gas to the water in the water storage sleeve; a cleaning component, which is arranged on the heat conduction mechanism; and a dust collection component, which is arranged on the heat conduction mechanism.

[0007] Preferably, a baffle is installed on one side of the partition close to the flamethrower, and the baffle is arranged in an oblique shape.

[0008] Preferably, an exhaust pipe is installed on the water storage sleeve, and a sponge pad is provided on the exhaust pipe.

[0009] Preferably, the heat conduction mechanism includes an annular heat conduction plate installed on the recovery tank, a fixing ring is installed on the annular heat conduction plate, a heat conduction disk is slidably installed on the fixing ring, a plurality of buffer springs are installed on the outer ring of the heat conduction disk, the plurality of buffer springs are all connected to the fixing ring, and a plurality of ventilation holes are opened on the heat conduction disk.

[0010] Preferably, the heat conducting disc, the fixing ring and the annular heat conducting plate are all made of copper material with good thermal conductivity.

[0011] Preferably, the cleaning assembly comprises a rotating rod rotatably mounted on the heat conducting plate, a fan blade is mounted on the rotating rod, and a cleaning plate is mounted on the rotating rod.

[0012] Preferably, the dust collecting mechanism comprises a collecting frame mounted on the annular heat conducting plate, a dust guiding pipe is mounted on the collecting frame, and one end of the dust guiding pipe extends to the outside of the water storage sleeve.

[0013] Preferably, a cam is sleeved on the rotating rod, a fixing plate is mounted on the annular heat conducting plate, and the sides of the cam and the fixing plate close to each other are both arranged as arc surfaces.

[0014] Compared with the prior art, the utility model has the following beneficial technical effects: through the action of the heat conducting plate, the fixing ring and the annular heat conducting plate, the heat in the waste gas can be better transferred to the water flow in the water storage sleeve, thereby completing the waste heat recovery of the waste gas;

[0015] The flow of exhaust gas drives the fan blades and the rotating rod to rotate, so that the surface of the heat transfer plate can be cleaned through the cleaning plate to ensure the contact between the heat transfer plate and the exhaust gas, thereby ensuring the absorption effect of the waste heat of the exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2It is a cross-sectional structural schematic diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure between the heat conducting plate and the fixing ring in the utility model;

[0019] Figure 4 It is a structural schematic diagram of the cleaning component in the utility model.

[0020] Figure numerals: 1. Recovery tank; 2. Water storage sleeve; 3. Fixed frame; 4. Air inlet pipe; 5. Air outlet pipe; 6. Annular heat conduction plate; 7. Partition; 8. Baffle; 9. Flamethrower; 10. Air guide pipe; 11. Fixed ring; 12. Heat conduction plate; 13. Buffer spring; 14. Vent; 15. Collecting frame; 16. Dust guide pipe; 17. Rotating rod; 18. Fan blade; 19. Cleaning plate; 20. Cam; 21. Fixed plate; 22. Exhaust pipe; 23. Sponge pad; 24. Water inlet pipe; 25. Water outlet pipe; 26. Thermometer. DETAILED DESCRIPTION

[0021] Embodiment 1

[0022] like Figure 1-Figure 4 As shown, the utility model proposes a waste heat recovery device for high-temperature incineration of waste gas, including a recovery tank 1, which is divided into two chambers by a partition 7, and the two chambers are connected by an air guide pipe 10, one of which is used for incinerating waste gas by setting a flamethrower 9, and the other chamber is provided with a heat conduction mechanism, and an air inlet pipe 4 and an air outlet pipe 5 are installed on the recovery tank 1. When in use, the air inlet pipe 4 and the air outlet pipe 5 are connected to the waste gas conveying system to facilitate the entry and discharge of waste gas in the recovery tank 1; a water storage sleeve 2, a water storage sleeve 2 sets are arranged on the recovery tank 1, water is injected into the water storage sleeve 2 through the water inlet pipe 24, the heat conduction mechanism transfers the heat of the gas to the water in the water storage sleeve 2, a fixing frame 3 is installed on the water storage sleeve 2 and the recovery tank 1, a thermometer 26 is installed on the water storage sleeve 2, a water inlet pipe 24 and a water outlet pipe 25 are installed on the water storage sleeve 2, and a valve 1 is arranged on the water inlet pipe 24 and the water outlet pipe 25; a cleaning component, the cleaning component is arranged on the heat conduction mechanism; and a dust collection component, the dust collection component is arranged on the heat conduction mechanism.

[0023] like Figure 2 As shown, a baffle 8 is installed on one side of the partition 7 close to the flamethrower 9. The baffle 8 is arranged in an oblique shape. Through the arrangement of the baffle 8, the exhaust gas entering the recovery tank 1 can be prevented from flowing directly to the air guide pipe 10, thereby ensuring the combustion effect of the exhaust gas.

[0024] like Figure 2 As shown, an exhaust pipe 22 is installed on the water storage sleeve 2, and a sponge pad 23 is provided on the exhaust pipe 22. The exhaust pipe 22 can be used to discharge steam when the water flow in the water storage sleeve 2 generates steam, thereby avoiding excessive pressure in the water storage sleeve 2 caused by the steam.

[0025] like Figure 2 and Figure 3 As shown, the heat conduction mechanism includes an annular heat conduction plate 6 installed on the recovery tank 1, a fixing ring 11 is installed on the annular heat conduction plate 6, an annular groove is provided on the inner ring of the fixing ring 11, a heat conduction disk 12 is slidably installed in the annular groove, a plurality of buffer springs 13 are installed on the outer ring of the heat conduction disk 12, and the plurality of buffer springs 13 are all connected to the inner wall of the annular groove on the fixing ring 11, a plurality of air vents 14 are provided on the heat conduction disk 12, the air vents 14 are arranged in an oblique shape, so as to facilitate the discharge of dust on the inner wall of the air vents 14, and the heat conduction disk 12, the fixing ring 11 and the annular heat conduction plate 6 are all made of copper material with good thermal conductivity.

[0026] like Figure 2 and Figure 4 As shown, the cleaning assembly includes a rotating rod 17 rotatably mounted on the heat conducting plate 12, a fan blade 18 is mounted on the rotating rod 17, a cleaning plate 19 is mounted on the rotating rod 17, a brush is provided on the cleaning plate 19, and the brush contacts the surface of the heat conducting plate 12, and the dust collecting mechanism includes a collecting frame 15 mounted on the annular heat conducting plate 6, the inner walls of both sides of the collecting frame 15 are arranged in an inclined surface, a dust guide pipe 16 is installed on the collecting frame 15, one end of the dust guide pipe 16 extends to the outside of the water storage sleeve 2, and a valve 2 is provided on the dust guide pipe 16.

[0027] In this embodiment, when in use, the exhaust gas enters the recovery tank 1 through the air inlet pipe 4, and the exhaust gas is burned under the flame of the flamethrower 9. The incinerated exhaust gas enters another chamber of the recovery tank 1 through the air guide pipe 10, and then passes through the vent hole 14 on the heat conducting plate 12 and is discharged through the air outlet pipe 5. In this process, the heat conducting plate 12 absorbs the heat in the exhaust gas, and transfers the heat to the water flow in the water storage sleeve 2 through the fixing ring 11 and the annular heat conducting plate 6. The water flow temperature is monitored by the thermometer 26. After the temperature reaches a suitable temperature, it is discharged through the water outlet pipe 25 for utilization, and the cold water flow can be re-injected into the water storage sleeve 2 through the water inlet pipe 24;

[0028] In the process of collecting waste heat, the flow of air will drive the fan blades 18 to rotate, and then drive the rotating rod 17 to rotate, and then drive the cleaning plate 19 to rotate. The cleaning plate 19 can be used to clean the surface of the heat transfer plate 12, thereby avoiding dust adhesion on the surface of the heat transfer plate 12, fully ensuring the contact between the heat transfer plate 12 and the exhaust gas, ensuring heat recovery, and the cleaned dust will fall into the collection frame 15. When cleaning, the valve 2 on the dust guide pipe 16 can be opened, and the dust can be blown out through the dust guide pipe 16 under the blowing of the airflow, thereby completing the dust cleaning.

[0029] Embodiment 2

[0030] like Figure 2and Figure 4 As shown, the waste heat recovery device for high-temperature incineration of exhaust gas proposed by the utility model, compared with the first embodiment, also includes a cam 20 arranged on the rotating rod 17, a fixing plate 21 is installed on the annular heat conducting plate 6, and the sides of the cam 20 and the fixing plate 21 close to each other are both set as arc surfaces.

[0031] In the present embodiment, in the process of the fan blade 18 driving the rotating rod 17 to rotate, the cam 20 is indirectly driven to rotate. In the process of the rotation of the cam 20, it will collide with the fixed plate 21, and thereby be squeezed to drive the entire cleaning mechanism to move, thereby driving the heat transfer plate 12 to move. After the cam 20 is separated from the fixed plate 21, under the action of multiple buffer springs 13, the heat transfer plate 12 returns to its original position. During this process, the heat transfer plate 12 will vibrate, so that the dust on the inner wall of the vent 14 can be shaken off, thereby ensuring the normal circulation of exhaust gas.

[0032] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A waste gas high temperature incineration waste heat recovery device, characterized in that: include: A recovery tank (1), the recovery tank (1) is divided into two chambers by a partition (7), the two chambers are connected by an air pipe (10), one of the chambers is provided with a flamethrower (9) for burning waste gas, and the other chamber is provided with a heat conduction mechanism; A water storage sleeve (2), the water storage sleeve (2) is sleeved on the recovery tank (1), water is injected into the water storage sleeve (2) through a water inlet pipe (24), and a heat transfer mechanism transfers the heat of the gas to the water in the water storage sleeve (2); A cleaning component, wherein the cleaning component is arranged on the heat conducting mechanism; And a dust collecting component, which is arranged on the heat conducting mechanism.

2. The waste heat recovery device for high-temperature incineration of waste gas according to claim 1, characterized in that: A baffle (8) is installed on one side of the partition (7) close to the flamethrower (9), and the baffle (8) is arranged in an oblique shape.

3. The waste heat recovery device for high-temperature incineration of waste gas according to claim 1, characterized in that: An exhaust pipe (22) is installed on the water storage sleeve (2), and a sponge pad (23) is arranged on the exhaust pipe (22).

4. The waste heat recovery device for high-temperature incineration of waste gas according to claim 1, characterized in that: The heat conduction mechanism comprises an annular heat conduction plate (6) mounted on the recovery tank (1), a fixing ring (11) being mounted on the annular heat conduction plate (6), a heat conduction disk (12) being slidably mounted on the fixing ring (11), a plurality of buffer springs (13) being mounted on the outer ring of the heat conduction disk (12), the plurality of buffer springs (13) being connected to the fixing ring (11), and a plurality of vent holes (14) being provided on the heat conduction disk (12).

5. The waste heat recovery device for high-temperature incineration of waste gas according to claim 4, characterized in that: The heat conducting disc (12), the fixing ring (11) and the annular heat conducting plate (6) are all made of copper material with good heat conducting performance.

6. The waste heat recovery device for high-temperature incineration of waste gas according to claim 4, characterized in that: The cleaning assembly comprises a rotating rod (17) rotatably mounted on the heat conducting plate (12), a fan blade (18) is mounted on the rotating rod (17), and a cleaning plate (19) is mounted on the rotating rod (17).

7. The waste heat recovery device for high-temperature incineration of waste gas according to claim 4, characterized in that: The dust collecting mechanism comprises a collecting frame (15) mounted on the annular heat conducting plate (6), a dust guiding pipe (16) being mounted on the collecting frame (15), and one end of the dust guiding pipe (16) extending to the outside of the water storage sleeve (2).

8. The waste heat recovery device for high-temperature incineration of waste gas according to claim 6, characterized in that: A cam (20) is sleeved on the rotating rod (17), a fixing plate (21) is installed on the annular heat conducting plate (6), and the sides of the cam (20) and the fixing plate (21) close to each other are both arranged as arc surfaces.

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