Heat accumulating type thermal incinerator for electrolyte waste gas treatment

Abstract

The utility model discloses a heat accumulating type thermal incinerator for electrolyte waste gas treatment, which comprises a base, four corners of the top of the base are symmetrically and fixedly connected with supporting legs, the top ends of the supporting legs are provided with an incinerator body, and a first heat accumulating chamber, a combustion chamber and a second heat accumulating chamber are sequentially arranged in the incinerator body. The exhaust gas header pipe is connected with the branch pipe, the exhaust gas branch pipe is connected with the upper portion of the branch pipe, the motor can control the reversing valve to rotate through the transmission mechanism, the flowing direction of exhaust gas can be controlled by adjusting the direction of the ventilation opening in the reversing valve, meanwhile, the rotating shaft drives the cam to rotate, and the semi-major axis direction of the cam is the same as the direction of the ventilation opening. According to the exhaust gas flow reversing mechanism, a plurality of electric control valves can be replaced by a single motor, the complexity of a control program is effectively reduced, the overall cost of equipment is reduced, and the working stability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a heat storage type thermal incinerator for treating electrolyte waste gas. Background Art

[0002] Compared with traditional catalytic combustion and direct-fired thermal oxidation furnaces (TO), regenerative thermal incinerators have the characteristics of high thermal efficiency, low operating cost, and the ability to treat large air volume and low-concentration exhaust gas. When the concentration is slightly higher, secondary waste heat recovery can be performed, greatly reducing production and operation costs. Regenerative thermal incinerators are needed when treating electrolyte exhaust gas.

[0003] The current regenerative thermal incinerator can recover secondary waste heat by changing the flow direction of the exhaust gas. However, it is found in use that although the existing technology can change the flow direction of the exhaust gas, it needs to control the on and off of the exhaust gas pipeline through multiple electrically controlled valves to change the flow direction of the exhaust gas, which makes the PLC control program of the existing device complicated. In addition, the control through multiple electrically controlled valves can easily increase the damage rate of the device and make it inconvenient to use. Therefore, we propose a regenerative thermal incinerator for electrolyte waste gas treatment to solve the problem raised. Utility Model Content

[0004] The purpose of the utility model is to provide a heat storage thermal incinerator for treating electrolyte waste gas, which achieves the purpose of the waste gas flow reversing mechanism, and can replace multiple electric control valves with a single motor, effectively reducing the complexity of the control program, reducing the overall cost of the equipment, and improving the stability of the device operation.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a regenerative thermal incinerator for treating electrolyte waste gas, comprising a base, the top four corners of the base are symmetrically fixedly connected with legs, the top of the legs is equipped with a furnace body, wherein:

[0006] The furnace body is provided with a first heat storage chamber, a combustion chamber and a second heat storage chamber in sequence, a support pipe is installed at the middle of the top of the base, the support pipe is connected to an exhaust gas main pipe on one side near the bottom, and the support pipe is symmetrically connected to exhaust gas branch pipes on both sides near the top, and the exhaust gas branch pipes on both sides of the support pipe are respectively connected to the first heat storage chamber and the second heat storage chamber, a reversing valve is rotatably connected inside the support pipe, a vent is provided on one side of the reversing valve corresponding to the exhaust gas branch pipe, the reversing valve is rotatably connected to the support pipe through a rotating shaft, and a motor is installed on the outside of the support pipe;

[0007] The motor drives the rotating shaft to rotate through the transmission mechanism, the bottoms of the first heat storage chamber and the second heat storage chamber are both connected with exhaust branch pipes, one side of the exhaust branch pipe is connected with a valve plate groove, a valve plate is arranged in the valve plate groove, a transmission rod is fixedly connected to the side of the valve plate close to the support tube, a cam is fixedly connected to the end of the rotating shaft close to the outer side of the support tube, a sliding groove is provided on the side of the cam ring, and a slider is fixedly connected to the end of the transmission rod close to the sliding groove.

[0008] Preferably, the first heat storage chamber, the combustion chamber and the second heat storage chamber are connected to each other through a connecting port, and a burner is installed on the top of the furnace body corresponding to the combustion chamber.

[0009] Preferably, the transmission mechanism comprises a first reversing gear, the first reversing gear is mounted on the outer side of the rotating shaft, and the second reversing gear is mounted on the shaft end of the motor close to the first reversing gear.

[0010] Preferably, the ends of the exhaust branch pipes are connected to an exhaust main pipe.

[0011] Preferably, the cross-sections of the slide groove and the slider are spherical, and the inner diameter of the slide groove matches the outer diameter of the slider.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] In the utility model, the exhaust gas main pipe is connected with the branch pipe, and the exhaust gas branch pipe is connected with the upper part of the branch pipe. The motor can control the rotation of the reversing valve through the transmission mechanism. The flow direction of the exhaust gas can be controlled by adjusting the direction of the air vent on the reversing valve. At the same time, the rotating shaft drives the cam to rotate. The direction of the long semi-axis of the cam is the same as the direction of the air vent. Then, when the passage of the exhaust gas branch pipe is opened, the valve plate is driven by the slide groove, the slider and the transmission rod to automatically close the exhaust branch pipe. The exhaust gas flow reversing mechanism can replace multiple electric control valves with a single motor, which effectively reduces the complexity of the control program, reduces the overall cost of the equipment, and improves the stability of the device operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0016] Figure 3 For this utility model Figure 1 Schematic diagram of the local enlarged structure at point B in the middle.

[0017] In the figure: 1. base; 2. support leg; 3. furnace body; 4. first heat storage chamber; 5. combustion chamber; 6. second heat storage chamber; 7. connecting port; 8. burner; 9. support pipe; 10. exhaust gas main pipe; 11. exhaust gas branch pipe; 12. reversing valve; 13. vent; 14. rotating shaft; 15. first reversing gear; 16. motor; 17. second reversing gear; 18. exhaust branch pipe; 19. exhaust main pipe; 20. valve plate groove; 21. valve plate; 22. transmission rod; 23. cam; 24. slide groove; 25. slider. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0019] See also Figures 1 to 3 The utility model provides a technical solution: a regenerative thermal incinerator for treating electrolyte waste gas, comprising a base 1, the top four corners of the base 1 are symmetrically fixedly connected with legs 2, the top of the legs 2 is equipped with a furnace body 3, wherein,

[0020] A first heat storage chamber 4, a combustion chamber 5 and a second heat storage chamber 6 are sequentially provided in the furnace body 3. A support pipe 9 is installed at the middle of the top of the base 1. The support pipe 9 is connected to an exhaust gas main pipe 10 near the lower side, and the support pipe 9 is symmetrically connected to exhaust gas branch pipes 11 near the upper sides. The exhaust gas branch pipes 11 on both sides of the support pipe 9 are respectively connected to the first heat storage chamber 4 and the second heat storage chamber 6. A reversing valve 12 is rotatably connected inside the support pipe 9. A vent 13 is provided on one side of the reversing valve 12 corresponding to the exhaust gas branch pipe 11. The reversing valve 12 is rotatably connected to the support pipe 9 through a rotating shaft 14. A motor 16 is installed on the outer side of the support pipe 9.

[0021] The motor 16 drives the rotating shaft 14 to rotate through the transmission mechanism. The bottoms of the first heat storage chamber 4 and the second heat storage chamber 6 are both connected with exhaust branch pipes 18. One side of the exhaust branch pipe 18 is connected with a valve plate groove 20. A valve plate 21 is arranged in the valve plate groove 20. A transmission rod 22 is fixedly connected to the side of the valve plate 21 close to the support tube 9. A cam 23 is fixedly connected to the end of the rotating shaft 14 close to the outer side of the support tube 9. A slide groove 24 is opened on the ring side of the cam 23. A slider 25 is fixedly connected to the end of the transmission rod 22 close to the slide groove 24.

[0022] The exhaust main pipe 10 is connected to the support pipe 9, and the exhaust branch pipe 11 is connected to the top of the support pipe 9. The motor 16 can control the rotation of the reversing valve 12 through the transmission mechanism. The flow direction of the exhaust gas can be controlled by adjusting the direction of the vent 13 on the reversing valve 12. At the same time, the rotating shaft 14 drives the cam 23 to rotate. The long semi-axis direction of the cam 23 is the same as the direction of the vent 13. When the passage of the exhaust branch pipe 11 is opened, the valve plate 21 is driven by the slide groove 24, the slider 25 and the transmission rod 22 to automatically close its exhaust branch pipe 18. The exhaust flow reversing mechanism can replace multiple electrically controlled valves with a single motor 16, which effectively reduces the complexity of the control program, reduces the overall cost of the equipment, and improves the stability of the device operation.

[0023] See also Figures 1 to 3 The first regenerator 4, the combustion chamber 5 and the second regenerator 6 are connected to each other through the connecting port 7. A burner 8 is installed on the top of the furnace body 3 corresponding to the combustion chamber 5. The flow direction of the exhaust gas is controlled by the exhaust gas flow reversing mechanism. When the exhaust gas branch pipe 11 of the first regenerator 4 is opened, the exhaust gas enters the first regenerator 4 and then enters the combustion chamber 5. After the exhaust gas in the combustion chamber 5 is burned by the burner 8, the hot gas enters the second regenerator 6 and is then discharged through the exhaust branch pipe 18. At the same time, the second regenerator 6 is heated. After the exhaust gas is reversed, the exhaust gas enters the combustion chamber 5 from the second regenerator 6. After the exhaust gas passes through the second regenerator 6, the exhaust gas is discharged through the exhaust branch pipe 18. When the exhaust gas is preliminarily purified by the waste heat in the second heat storage chamber 6, the three-chamber heat storage thermal incinerator can effectively utilize the waste heat and improve the exhaust gas treatment efficiency. The transmission mechanism includes a first reversing gear 15, and the first reversing gear 15 is installed on the outer side of the rotating shaft 14. The motor 16 is installed with a second reversing gear 17 near the shaft end of the first reversing gear 15. When the motor 16 is working, it drives the second reversing gear 17 to rotate, and the second reversing gear 17 drives the first reversing gear 15 to rotate through meshing, so that the first reversing gear 15 drives the rotating shaft 14 to rotate, and the transmission mechanism is set so that the rotating shaft 14 can be driven to rotate by the motor 16.

[0024] See also Figures 1 to 3 The ends of the exhaust branch pipe 18 are connected to the exhaust main pipe 19. The cross-sections of the slide groove 24 and the slider 25 are spherical, and the inner diameter of the slide groove 24 matches the outer diameter of the slider 25. When the cam 23 rotates, the slide groove 24 and the slider 25 move relative to each other, and then the rotation of the cam 23 can drive the transmission rods 22 on both sides to move horizontally.

[0025] Working principle: In this regenerative thermal incinerator for treating electrolyte waste gas, the waste gas main pipe 10 is connected to the support pipe 9, and the waste gas branch pipe 11 is connected to the upper part of the support pipe 9. The motor 16 can control the rotation of the reversing valve 12 through the transmission mechanism. The flow direction of the waste gas can be controlled by adjusting the direction of the vent 13 on the reversing valve 12. At the same time, the rotating shaft 14 drives the cam 23 to rotate. The long semi-axis direction of the cam 23 is the same as the direction of the vent 13. When the passage of the waste gas branch pipe 11 is opened, the valve plate 21 is driven by the slide groove 24, the slider 25 and the transmission rod 22 to automatically close the exhaust branch pipe 18. The waste gas flow reversing mechanism can replace multiple electric control valves through a single motor 16, which effectively reduces the complexity of the control program, reduces the overall cost of the equipment, and improves the stability of the device operation.

[0026] The exhaust gas flow direction is controlled by the exhaust gas flow reversing mechanism. When the exhaust gas branch pipe 11 of the first heat storage chamber 4 is opened, the exhaust gas enters the first heat storage chamber 4 and then enters the combustion chamber 5. After the exhaust gas in the combustion chamber 5 is burned by the burner 8, the hot gas enters the second heat storage chamber 6 and then is discharged through the exhaust branch pipe 18. At the same time, the second heat storage chamber 6 is heated. After the exhaust gas is reversed, the exhaust gas enters the combustion chamber 5 from the second heat storage chamber 6. When the exhaust gas passes through the second heat storage chamber 6, the exhaust gas is preliminarily purified by the residual heat in the second heat storage chamber 6. By setting up a three-chamber regenerative thermal incinerator, waste heat can be effectively utilized to improve the waste gas treatment efficiency. When the motor 16 is working, it drives the second reversing gear 17 to rotate. The second reversing gear 17 drives the first reversing gear 15 to rotate through meshing, so that the first reversing gear 15 drives the rotating shaft 14 to rotate. Through the transmission mechanism set up, the rotating shaft 14 is driven to rotate by the motor 16, and when the cam 23 rotates, the slide groove 24 and the slider 25 are relatively moved, and then the rotation of the cam 23 can drive the transmission rods 22 on both sides to move horizontally.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A regenerative thermal incinerator for treating electrolyte waste gas, comprising a base (1), characterized in that: The four corners of the top of the base (1) are symmetrically fixedly connected with supporting legs (2), and the top of the supporting legs (2) is installed with a furnace body (3), wherein: The furnace body (3) is provided with a first heat storage chamber (4), a combustion chamber (5) and a second heat storage chamber (6) in sequence. A support pipe (9) is installed at the middle of the top of the base (1). The support pipe (9) is connected to an exhaust gas main pipe (10) on one side near the bottom. The support pipe (9) is symmetrically connected to exhaust gas branch pipes (11) on both sides near the top. The exhaust gas branch pipes (11) on both sides of the support pipe (9) are respectively connected to the first heat storage chamber (4) and the second heat storage chamber (6). A reversing valve (12) is rotatably connected inside the support pipe (9). A vent (13) is provided on one side of the reversing valve (12) corresponding to the exhaust gas branch pipe (11). The reversing valve (12) is rotatably connected to the support pipe (9) via a rotating shaft (14). A motor (16) is installed on the outside of the support pipe (9); The motor (16) drives the rotating shaft (14) to rotate through a transmission mechanism. The bottoms of the first heat storage chamber (4) and the second heat storage chamber (6) are both connected to exhaust branch pipes (18). One side of the exhaust branch pipe (18) is connected to a valve plate groove (20). A valve plate (21) is arranged in the valve plate groove (20). A transmission rod (22) is fixedly connected to a side of the valve plate (21) close to the support tube (9). A cam (23) is fixedly connected to an end of the rotating shaft (14) close to the outer side of the support tube (9). A slide groove (24) is provided on a ring side of the cam (23). A slider (25) is fixedly connected to an end of the transmission rod (22) close to the slide groove (24).

2. The regenerative thermal incinerator for treating electrolyte waste gas according to claim 1, characterized in that: The first heat storage chamber (4), the combustion chamber (5) and the second heat storage chamber (6) are connected to each other via a connecting port (7), and a burner (8) is installed on the top of the furnace body (3) corresponding to the combustion chamber (5).

3. The regenerative thermal incinerator for treating electrolyte waste gas according to claim 1, characterized in that: The transmission mechanism comprises a first reversing gear (15), the first reversing gear (15) being mounted on the outer side of the rotating shaft (14), and a second reversing gear (17) being mounted on the shaft end of the motor (16) close to the first reversing gear (15).

4. The regenerative thermal incinerator for treating electrolyte waste gas according to claim 1, characterized in that: The ends of the exhaust branch pipes (18) are connected to an exhaust main pipe (19).

5. The regenerative thermal incinerator for treating electrolyte waste gas according to claim 1, characterized in that: The cross-sections of the slide groove (24) and the slider (25) are spherical, and the inner diameter of the slide groove (24) matches the outer diameter of the slider (25).

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