Zeolite rotating wheel concentration device for treating complex waste gas

Abstract

The invention discloses a zeolite rotating wheel concentration device for treating complex waste gas, which comprises a shell, the interior of the shell is transversely divided into a plurality of independent cavities, and a horizontally distributed zeolite rotating wheel is rotatably arranged in each cavity; the communicating pipes are distributed in the front-back direction of the shell, and every two adjacent cavities are communicated through one communicating pipe; the waste gas inlet is formed in the left end of the shell; the cooling air inlet pipe and the concentration exhaust pipe are arranged above the shell, the purification exhaust pipe is arranged at the right end of the shell and communicated with the last cavity, and the input end of the vacuum pump is connected with the purification exhaust pipe; the chimney is connected with the output end of the vacuum pump; compared with the prior art, the device has the beneficial effects of efficient purification capacity, energy conservation, environmental protection and continuous treatment capacity.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment, in particular to a zeolite wheel concentrator for treating complex waste gas. Background Art

[0002] With the acceleration of industrialization and the enhancement of environmental protection awareness, the treatment of complex waste gas has become one of the important challenges facing the industrial field today. If these pollutants are directly discharged into the atmosphere without effective treatment, they will have a serious impact on the environment and human health. Therefore, the development of efficient, economical and environmentally friendly waste gas treatment technology is of great significance to ensure environmental quality and promote sustainable development.

[0003] As an advanced waste gas treatment technology, the zeolite wheel concentrator is widely used in the field of industrial waste gas treatment due to its high efficiency, energy saving, and easy maintenance. The zeolite wheel is the core component of the device, and its surface is coated with zeolite material. The zeolite material has a unique pore structure and adsorption performance, and can selectively adsorb pollutants in the waste gas. After the waste gas enters the shell through the waste gas inlet, it contacts the zeolite wheel, and the pollutants are adsorbed on the zeolite material. The purified waste gas is discharged through the purified exhaust pipe.

[0004] Although the zeolite rotor concentrator in the prior art has achieved certain results in treating waste gas, there are still some shortcomings: the zeolite rotor in the prior art usually uses zeolite materials with consistent pore sizes, and different pollutants are adsorbed differently by zeolites with different pore sizes. Therefore, this zeolite rotor with consistent pore size can only adsorb a part of the pollutants, and cannot effectively adsorb pollutants with other pore size requirements, resulting in poor treatment effect. In order to overcome the problem of limited adsorption effect caused by the consistent pore size of zeolite, some prior arts use multiple rotor devices, each of which uses zeolite materials with different pore sizes. However, this approach not only increases the equipment cost, but also makes the device structure more complicated, which is not easy to maintain and operate. The concentrated waste gas generated during the desorption process usually contains higher energy, but the prior art often fails to make full use of this energy, resulting in energy waste.

[0005] Therefore, it is necessary to provide a zeolite wheel concentrator for treating complex exhaust gas to solve the problems raised in the above background technology. Summary of the invention

[0006] To achieve the above object, the present invention provides the following technical solution: A zeolite wheel concentrator for treating complex exhaust gas, comprising:

[0007] A shell, wherein the interior of the shell is transversely divided into a plurality of independent cavities, and a horizontally distributed zeolite rotor is rotatably arranged in each cavity;

[0008] A plurality of connecting pipes, wherein the connecting pipes are distributed in the front-rear direction of the shell, and adjacent cavities are connected through each connecting pipe;

[0009] an exhaust gas inlet, arranged at the left end of the housing;

[0010] The cooling air intake pipe and the concentrated exhaust pipe are arranged above the shell.

[0011] A purification exhaust pipe is arranged at the right end of the shell and is connected to the last cavity;

[0012] A vacuum pump, the input end of which is connected to the purification exhaust pipe;

[0013] A chimney is connected to the output end of the vacuum pump.

[0014] Furthermore, a transverse partition is fixed in each cavity in the shell to separate it up and down, and the zeolite wheel is rotatably arranged in the transverse partition so as to penetrate up and down.

[0015] Furthermore, the exhaust gas inlet is located below the diaphragm, and each of the connecting pipes is tilted downward from top to bottom, and the upper end of the connecting pipe is connected to the upper part of the diaphragm of the previous cavity, and the lower end of the connecting pipe is connected to the lower part of the diaphragm of the next cavity.

[0016] Furthermore, each cavity in the shell is fixed with a vertical partition to separate it up and down, and the zeolite wheel is rotatably arranged in the vertical partition so as to penetrate left and right;

[0017] The exhaust gas inlet, both ends of the connecting pipe, and the purified exhaust pipe are all connected to the left side of the vertical partition;

[0018] A cooling baffle is fixed on the right side of the vertical baffle, and the cooling baffle divides the cavity on the right side of the vertical baffle into two parts, front and rear;

[0019] The cooling air intake pipe is connected to the rear of the cooling baffle of each cavity, and the concentrated exhaust pipe is connected to the front of the cooling baffle of each cavity;

[0020] A connecting hole is provided in the cooling baffle below the transverse baffle, and a heating pipe is provided at the front of the cooling baffle below the transverse baffle.

[0021] Furthermore, the rear end of the concentrated exhaust pipe is connected to a burner, and the exhaust port of the burner is connected to a vacuum pump.

[0022] Furthermore, a heat conductor circulates in the heating tube, and the heating tube is connected to the burner.

[0023] Furthermore, a plurality of groups of heating tubes are arranged in each cavity, and each group of heating tubes is distributed in sequence from the vertical partition to the cooling partition, and the heat conductive agent also flows in this direction.

[0024] Furthermore, the rotating shaft of each zeolite wheel passes through the bottom of the shell and is connected to a pulley. Adjacent pulleys are connected together by belts, and a driving motor is connected to one of the pulleys.

[0025] Furthermore, the transverse partitions, vertical partitions and cooling partitions are all made of heat-insulating materials.

[0026] Furthermore, a primary filter is provided at the front end of the exhaust gas inlet.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] In the present invention, multiple independent chambers are configured inside the device, and a horizontally distributed zeolite wheel is rotated in each chamber, and each zeolite wheel is configured with zeolites of different pore sizes to efficiently and accurately adsorb and treat multiple different components of pollutants in complex exhaust gas. After the exhaust gas passes through the primary filter to filter particulate matter, it flows through each chamber in turn through each connecting pipe to achieve step-by-step adsorption and purification, ensuring the treatment effect of the exhaust gas.

[0029] In the present invention, the device realizes the concentration treatment of pollutants in the exhaust gas through the adsorption and desorption process of the zeolite wheel, reducing the energy consumption in the treatment process. The concentrated pollutants are sent to the burner for thorough combustion, and the heat generated by the combustion is recovered through the heating tube and used to heat the air in the desorption process, thereby improving the energy utilization efficiency. The exhaust gas after combustion is extracted and pressurized by a vacuum pump and finally discharged into the atmosphere through a chimney, which meets the environmental protection requirements.

[0030] In the present invention, the zeolite wheel rotates synchronously under the drive of the driving motor, realizing the continuous treatment of the exhaust gas. After the zeolite wheel adsorbs the pollutants, it desorbs the pollutants through the air heated by the heating tube. After desorption, the zeolite wheel returns to the adsorption position to continue to adsorb new exhaust gas. This process is cyclical, ensuring the continuous treatment capacity of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of a zeolite wheel concentration device for treating complex waste gas;

[0032] Figure 2 It is a front schematic diagram of a zeolite wheel concentrator for treating complex waste gas;

[0033] Figure 3 It is a schematic diagram of the structure inside the shell;

[0034] Figure 4 is a schematic vertical section diagram of the interior of the shell;

[0035] Figure 5is a schematic diagram of a horizontal section inside the shell;

[0036] In the figure: 1. shell; 2. exhaust gas inlet; 21. primary filter; 3. zeolite wheel; 4. cooling intake pipe; 5. concentration exhaust pipe; 51. burner; 6. vacuum pump; 7. connecting pipe; 8. purification exhaust pipe; 9. chimney; 10. driving motor; 11. pulley; 12. belt; 13. horizontal partition; 14. vertical partition; 15. cooling partition; 16. heating tube. DETAILED DESCRIPTION

[0037] See also Figure 1-Figure 5 In an embodiment of the present invention, a zeolite wheel concentrator for treating complex exhaust gas comprises:

[0038] A housing 1, wherein the interior of the housing 1 is transversely divided into a plurality of independent cavities, and a horizontally distributed zeolite rotor 3 is rotatably disposed in each cavity;

[0039] A plurality of connecting pipes 7, wherein the connecting pipes 7 are distributed in the front-rear direction of the housing 1, and adjacent cavities are connected via one connecting pipe 7;

[0040] An exhaust gas inlet 2, arranged at the left end of the housing 1, for introducing the exhaust gas to be purified;

[0041] The cooling air intake pipe 4 and the concentrated exhaust pipe 5 are arranged above the housing 1 .

[0042] A purified exhaust pipe 8 is arranged at the right end of the housing 1 and is connected to the last cavity, and is used to discharge the exhaust gas after being adsorbed and purified by the zeolite wheel 3;

[0043] A vacuum pump 6, whose input end is connected to the purified exhaust pipe 8, for extracting and pressurizing the purified exhaust gas;

[0044] A chimney 9, connected to the output end of the vacuum pump 6, for discharging the pressurized purified exhaust gas into the atmosphere;

[0045] Among them, the zeolite wheel 3 in each cavity is configured with zeolites of different pore sizes to perform efficient and precise adsorption treatment on various different components of pollutants in complex exhaust gas. After the exhaust gas enters the shell 1 from the exhaust gas inlet 2, it flows through each cavity in turn through the connecting pipes 7 to achieve step-by-step adsorption and purification, and is sucked into the chimney 9 by the vacuum pump 6 and discharged into the atmosphere.

[0046] In this embodiment, a transverse partition 13 is fixed in each cavity in the housing 1 to separate the cavity up and down, and the zeolite wheel 3 is rotatably arranged in the transverse partition 13 so as to penetrate up and down;

[0047] The exhaust gas inlet 2 is located below the diaphragm 13, and each connecting pipe 7 is tilted downward from top to bottom, with the upper end of the connecting pipe 7 connected to the upper side of the diaphragm 13 of the previous cavity, and the lower end of the connecting pipe 7 connected to the lower side of the diaphragm 13 of the next cavity.

[0048] That is to say, the exhaust gas passes through the corresponding zeolite wheel 3 from under the diaphragm 13 of the first cavity in the shell 1 to above the diaphragm 13, thereby undergoing an adsorption process, and then flows through the connecting pipe 7 to under the diaphragm 13 of the next cavity and passes through the corresponding zeolite wheel 3 again, and then proceeds to the last cavity in turn, and is sucked away by the vacuum pump 6 from the purification exhaust pipe 8 at the bottom of the cavity.

[0049] In this embodiment, a vertical partition 14 is fixed in each cavity in the housing 1 to separate it up and down, and the zeolite wheel 3 is rotatably arranged in the vertical partition 14 so as to penetrate left and right;

[0050] The exhaust gas inlet 2, both ends of the connecting pipe 7, and the purified exhaust pipe 8 are all connected to the left side of the vertical partition 14;

[0051] A cooling baffle 15 is fixed to the right side of the vertical baffle 14, and the cooling baffle 15 divides the cavity on the right side of the vertical baffle 14 into two parts, front and rear.

[0052] The cooling air intake pipe 4 is connected to the rear of the cooling baffle 15 of each cavity, and the concentrated exhaust pipe 5 is connected to the front of the cooling baffle 15 of each cavity;

[0053] A connecting hole is formed in the cooling baffle 15 below the transverse baffle 13 , and a heating pipe 16 is disposed at the front of the cooling baffle 15 below the transverse baffle 13 .

[0054] That is to say, the exhaust gas passes through the zeolite rotor 3 on the left side of the vertical partition 14 to adsorb pollutants, and the clean air from the outside passes through the zeolite rotor 3 at the rear of the cooling partition 15 from top to bottom and passes through the connecting hole, and then passes through the zeolite rotor 3 at the front of the cooling partition 15 from bottom to top after being heated by the heating tube 16 and is discharged from the concentrated exhaust pipe 5.

[0055] When the zeolite rotor 3 rotates counterclockwise, the zeolite rotor 3 after adsorbing pollutants on the left side of the vertical partition 14 enters the front of the cooling partition 15 on the right side of the vertical partition 14. At this time, the air heated by the heating tube 16 passes through the zeolite rotor 3 at this position from bottom to top to desorb the pollutants from the zeolite rotor 3 and discharge them into the concentrated exhaust pipe 5. As the zeolite rotor 3 continues to rotate, it enters the rear part of the cooling partition 15. At this time, the clean air from the outside passes through the zeolite rotor 3 at this position from top to bottom to cool the zeolite rotor 3. Then the zeolite rotor 3 rotates back to the left side of the vertical partition 14 to continue adsorbing pollutants. This process is cyclically performed to concentrate the pollutants in the exhaust gas into the air of the concentrated exhaust pipe 5 for centralized treatment.

[0056] In this embodiment, the rear end of the concentrated exhaust pipe 5 is connected to the burner 51 , and the exhaust port of the burner 51 is connected to the vacuum pump 6 .

[0057] The burner 51 is also connected to additional fuel, and the pollutants concentrated in the concentrated exhaust pipe 5 can be completely burned through the burner 51 . After the combustion, the pollutants are sucked away by the vacuum pump 6 and discharged from the chimney 9 .

[0058] In this embodiment, a heat conductor circulates in the heating tube 16, and the heating tube 16 is connected to the burner 51. When the burner 51 burns the concentrated pollutants, the heat can be transferred to the heating tube 16 in each cavity, so that the heat can be recovered to desorb the zeolite wheel 3, thereby improving the energy utilization efficiency.

[0059] In this embodiment, multiple groups of heating tubes 16 are arranged in each cavity, and each group of heating tubes 16 is sequentially distributed from the vertical partition 14 to the cooling partition 15, and the heat conductor also flows in this direction. Since the cooling air flows into the position where the heating tubes 16 are located from the connecting holes in the cooling partition 15, the air closer to the vertical partition 14 can contact more and higher temperature heating tubes 16, so that the zeolite wheel 3 can be heated at high temperature once it passes over the vertical partition 14, which can improve the desorption efficiency of the zeolite wheel 3.

[0060] In this embodiment, the rotating shaft of each zeolite wheel 3 passes through the bottom of the housing 1 and is connected to a pulley 11. Adjacent pulleys 11 are connected together by a belt 12, and a driving motor 10 is connected to one of the pulleys 11. The driving motor 10 can drive each zeolite wheel 3 to rotate synchronously.

[0061] In this embodiment, the transverse partition 13, the vertical partition 14, and the cooling partition 15 are all made of heat-insulating materials, so as to ensure the heat preservation performance at the location of the heating pipe 16 and prevent the zeolite wheel 3 from desorbing at other locations.

[0062] In this embodiment, a primary filter 21 is disposed at the front end of the exhaust gas inlet 2. The primary filter 21 can filter particulate matter in the exhaust gas to avoid clogging the zeolite wheel 3.

[0063] When implementing:

[0064] Exhaust gas treatment process: After the exhaust gas passes through the primary filter 21 to filter out particulate matter, it enters the first cavity of the shell 1 from the exhaust gas inlet 2, and passes through the corresponding zeolite rotor 3 under the diaphragm 13 to undergo an adsorption process. The adsorbed exhaust gas flows obliquely upward into the next cavity through the connecting pipe 7, and passes through the corresponding zeolite rotor 3 again under the diaphragm 13 of the cavity to achieve step-by-step adsorption purification. The purified exhaust gas is finally extracted and pressurized by the vacuum pump 6 through the purification exhaust pipe 8, and then discharged into the atmosphere through the chimney 9.

[0065] Desorption and cooling of the zeolite rotor: When the zeolite rotor 3 rotates counterclockwise to the right side of the vertical partition 14, it first enters the front part of the cooling partition 15. At this time, the air heated by the heating tube 16 passes through the zeolite rotor 3 from bottom to top, desorbs the pollutants from the zeolite and discharges them into the concentrated exhaust pipe 5. The desorbed zeolite rotor 3 continues to rotate to the rear part of the cooling partition 15. At this time, the clean air from the outside passes through the zeolite rotor 3 from top to bottom to cool it. The cooled zeolite rotor 3 rotates back to the left side of the vertical partition 14 to continue to adsorb new exhaust gas. The process is repeated to achieve continuous treatment of exhaust gas.

[0066] Treatment and concentration of concentrated pollutants: The concentrated pollutants in the exhaust pipe 5 are sent to the burner 51 for thorough combustion. The heat generated by the combustion is recovered through the heating tube 16 and used to heat the air in the desorption process to improve energy utilization efficiency. The exhaust gas after combustion is extracted and pressurized by the vacuum pump 6 and finally discharged into the atmosphere through the chimney 9.

[0067] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A zeolite wheel concentrator for treating complex waste gas, characterized in that: include: A shell (1), wherein the interior of the shell (1) is transversely divided into a plurality of independent cavities, and a horizontally distributed zeolite wheel (3) is rotatably arranged in each cavity; A plurality of connecting pipes (7), wherein the connecting pipes (7) are distributed in the front-rear direction of the housing (1), and adjacent cavities are connected via each connecting pipe (7); An exhaust gas inlet (2) is arranged at the left end of the housing (1); A cooling air intake pipe (4) and a concentrated exhaust pipe (5) are arranged above the housing (1); A purified exhaust pipe (8), arranged at the right end of the shell (1) and connected to the last cavity; A vacuum pump (6), the input end of which is connected to the purification exhaust pipe (8); A chimney (9) is connected to the output end of the vacuum pump (6).

2. A zeolite wheel concentrator for treating complex waste gas according to claim 1, characterized in that: A transverse partition (13) is fixed in each cavity in the shell (1) to separate the cavity into upper and lower parts, and the zeolite wheel (3) is rotatably arranged in the transverse partition (13) so as to penetrate the cavity up and down.

3. A zeolite wheel concentrator for treating complex waste gas according to claim 2, characterized in that: The exhaust gas inlet (2) is located below the diaphragm (13), and each of the connecting pipes (7) is arranged to be tilted from top to bottom, with the upper end of the connecting pipe (7) connected to the upper part of the diaphragm (13) of the previous cavity, and the lower end of the connecting pipe (7) connected to the lower part of the diaphragm (13) of the next cavity.

4. A zeolite wheel concentrator for treating complex waste gas according to claim 2, characterized in that: A vertical partition (14) is fixed in each cavity in the shell (1) to separate the cavity into upper and lower parts, and the zeolite wheel (3) is rotatably arranged in the vertical partition (14) so ​​as to penetrate the cavity from left to right; The exhaust gas inlet (2), both ends of the connecting pipe (7), and the purified exhaust pipe (8) are all connected to the left side of the vertical partition (14); A cooling baffle (15) is fixed on the right side of the vertical baffle (14), and the cooling baffle (15) divides the cavity on the right side of the vertical baffle (14) into two parts, front and rear. The cooling air intake pipe (4) is connected to the rear of the cooling baffle (15) of each cavity, and the concentrated exhaust pipe (5) is connected to the front of the cooling baffle (15) of each cavity; A connecting hole is provided in the cooling baffle (15) below the transverse baffle (13), and a heating pipe (16) is provided at the front of the cooling baffle (15) below the transverse baffle (13).

5. A zeolite wheel concentrator for treating complex waste gas according to claim 4, characterized in that: The rear end of the concentrated exhaust pipe (5) is connected to a burner (51), and the exhaust port of the burner (51) is connected to a vacuum pump (6).

6. A zeolite wheel concentrator for treating complex waste gas according to claim 5, characterized in that: A heat conductor circulates in the heating tube (16), and the heating tube (16) is connected to the burner (51).

7. A zeolite wheel concentrator for treating complex waste gas according to claim 4, characterized in that: A plurality of groups of heating tubes (16) are arranged in each cavity, and each group of heating tubes (16) is distributed in sequence from the vertical partition (14) to the cooling partition (15), and the heat conducting agent also flows in this direction.

8. The zeolite wheel concentrator for treating complex waste gas according to claim 1, characterized in that: The rotating shaft of each zeolite wheel (3) passes through the bottom of the housing (1) and is connected to a pulley (11). Adjacent pulleys (11) are connected together via a belt (12), and a driving motor (10) is connected to one of the pulleys (11).

9. A zeolite wheel concentrator for treating complex waste gas according to claim 4, characterized in that: The transverse partition (13), the vertical partition (14) and the cooling partition (15) are all made of heat-insulating materials.

10. The zeolite wheel concentrator for treating complex waste gas according to claim 1, characterized in that: A primary filter (21) is provided at the front end of the exhaust gas inlet (2).

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