Environmentally friendly waste gas treatment equipment and treatment method

Abstract

The present invention relates to the field of waste gas treatment and discloses waste gas treatment environmental protection equipment, including an air duct, a cooling assembly arranged in the air duct, and a plurality of activated carbon plates arranged in the air duct and located behind the cooling assembly. The cooling assembly includes a cooling water tank and a plurality of trumpet-shaped air collecting pipes. The plurality of air collecting pipes are evenly arranged on the cooling water tank. The large opening end of the air collecting pipe is sealed and fixedly connected to the windward side of the water tank. The pipe body of the air collecting pipe is connected to the cooling water tank. The small opening end of the air collecting pipe is sealed and fixedly connected to the leeward side of the cooling water tank. The water inlet and outlet of the cooling water tank are respectively connected to external circulating cooling water. The plurality of activated carbon plates are evenly distributed around a mounting shaft and are respectively detachably fixedly connected to the mounting shaft. The axis of the mounting shaft is perpendicular to the flow direction of the waste gas at the location. The output end of a drive assembly is fixedly connected to the mounting shaft for driving the mounting shaft to rotate. The treatment equipment has a high waste gas cooling efficiency and the activated carbon can more fully participate in adsorbing the waste gas.

Description

Technical Field

[0001] The present invention relates to the field of waste gas treatment, and more specifically, to a waste gas treatment environmental protection device. The present invention also relates to a treatment method of the waste gas treatment environmental protection device. Background Art

[0002] Modern industrial production activities inevitably generate various waste gases. For example, industries involving processes such as smelting, drying, combustion, and heating generally produce high-temperature waste gases that are also mixed with various harmful substances and suspended particulate matter.

[0003] When treating this type of waste gas, it is generally necessary to first cool it down, then use the powerful adsorption and purification capabilities of activated carbon to absorb various harmful substances and suspended particulate matter in the waste gas. Exhaust gas treatment equipment currently available on the market primarily uses activated carbon. These treatment devices essentially cool the waste gas by passing it through a dense network of cooling water pipes, which is a relatively inefficient cooling method. Furthermore, the activated carbon in these devices is often fixed, resulting in uneven adsorption and inability to fully utilize the activated carbon's adsorption capacity. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides an environmentally friendly waste gas treatment device with high cooling efficiency and in which activated carbon can fully participate in adsorption.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A waste gas treatment and environmental protection equipment, including an air duct, a cooling component arranged in the air duct, and a plurality of activated carbon plates arranged in the air duct and behind the cooling component, the cooling component including a cooling water tank and a plurality of trumpet-shaped air collecting pipes, a plurality of the air collecting pipes are evenly arranged on the cooling water tank, the large opening end of the air collecting pipe is sealed and fixedly connected to the windward side of the water tank, the pipe body of the air collecting pipe is connected in the cooling water tank, the small opening end of the air collecting pipe is sealed and fixedly connected to the leeward side of the cooling water tank, the water inlet and water outlet of the cooling water tank are respectively connected to the external circulating cooling water, the plurality of activated carbon plates are evenly distributed around a mounting shaft and are respectively detachably fixedly connected to the mounting shaft, the axis of the mounting shaft is perpendicular to the flow direction of the exhaust gas at the location, the output end of a driving component is fixedly connected to the mounting shaft for driving the mounting shaft to rotate.

[0007] Furthermore, each of the air collecting pipes is provided with a plurality of heat sinks on the pipe body, and the heat sinks are perpendicular to the axis of the air collecting pipe.

[0008] Furthermore, the water inlet of the cooling water tank is located below the side of the cooling water tank and faces the tube body of the lowest air collecting pipe, and the axis of the lowest air collecting pipe is located below the axis of the water inlet.

[0009] Furthermore, the plurality of air collecting pipes are evenly arranged in horizontal and vertical rows, and an air guide cone is provided between every four air collecting pipes on the windward side of the cooling water tank for evenly guiding the airflow thereto to the four air collecting pipes.

[0010] Furthermore, the driving assembly includes an impeller rotatably connected in the air duct and immediately behind the cooling assembly, and a reduction pulley. The axis of the impeller is perpendicular to the flow direction of the exhaust gas at the location, and the rotating shaft of the impeller is connected to the mounting shaft through the reduction pulley.

[0011] Furthermore, the drive assembly further includes a drive motor and a gear member, the output shaft of the drive motor is transmission-connected to the rotating shaft of the impeller via the gear member, and the gear member can be disengaged.

[0012] Furthermore, the air duct is provided with air-binding parts at the position between the cooling assembly and the impeller and at the position between the impeller and the mounting shaft, so that the air flow is concentrated and blown to one side of the impeller and the activated carbon plate so that the two rotate in the same direction.

[0013] Furthermore, the air duct is provided with a mesh plate at the air confinement portion before the shaft is installed.

[0014] Furthermore, it also includes a heating box, in which multiple circles of heat pipes are wound. A portion of each circle of the heat pipes extends into the air duct and is located in front of the cooling component, and the portion of the heat pipes located in the air duct is inclined along the direction of air flow close to the cooling component. An electric heating wire is also provided on the heating box.

[0015] A method for treating waste gas for environmental protection equipment, comprising the steps of cooling and speeding up the waste gas; then concentrating the accelerated airflow and blowing it toward one side of an impeller to rotate the impeller; the impeller drives multiple activated carbon plates at the rear to rotate slowly in the same direction via a speed reduction pulley; concentrating and homogenizing the airflow again before the activated carbon plates, so that the airflow blows toward the side of the activated carbon plates that rotate in the same direction as the impeller; and, when the airflow cannot drive the impeller to rotate, connecting a drive motor to the impeller to drive the impeller to rotate; when the airflow can drive the impeller to rotate, disconnecting the drive motor from the impeller; after the activated carbon plates are enriched, replacing them with regenerated or new activated carbon plates, and placing the replaced activated carbon plates in a heating box for heating and regeneration.

[0016] In summary, the present invention offers beneficial effects: It directs exhaust gas through a trumpet-shaped air collection pipe, increasing air velocity and reducing temperature. Cooling water is then used to further cool the pipe body. This achieves higher cooling efficiency than existing methods that rely solely on cooling water pipes. Furthermore, the activated carbon utilizes multiple activated carbon plates mounted on a rotatable mounting shaft, which is rotated by a drive assembly, allowing the activated carbon to fully participate in adsorbing the exhaust gas, resulting in a more effective adsorption effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 It is a partially cutaway perspective structural diagram of the cooling assembly of the present invention;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the air guide cone of the present invention.

[0020] Figure numerals: 1. air duct; 11. air control unit; 2. cooling assembly; 21. cooling water tank; 211. water inlet; 212. water outlet; 22. air collecting pipe; 221. heat sink; 23. water storage tank; 24. condenser; 25. air guide cone; 251. air guide surface; 3. activated carbon plate; 4. mounting shaft; 51. impeller; 52. pulley; 53. driving motor; 6. mesh plate; 7. heating box; 8. heat pipe. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] It should be noted that when a component is referred to as being “fixed to” or “disposed on” another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as being “connected to” another component, it can be directly or indirectly connected to the other component.

[0023] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0025] like Figure 1 The waste gas treatment environmental protection equipment shown includes an air duct 1, a cooling assembly 2, and a plurality of activated carbon plates 3 arranged in the air duct 1 and behind the cooling assembly 2. The cooling assembly 2 is fixedly connected in the air duct 1, and its side facing the exhaust gas is the windward side, and its side facing away from the exhaust gas is the leeward side. The cooling assembly 2 includes a cooling water tank 21 and a plurality of trumpet-shaped air collecting pipes 22. The plurality of air collecting pipes 22 are evenly arranged on the cooling water tank 21. The large opening end of the air collecting pipe 22 is sealed and fixedly connected to the windward side of the water tank. The pipe body of the air collecting pipe 22 is connected to the cooling water tank 21. The small opening end of the air collecting pipe 22 is sealed and fixedly connected to the leeward side of the cooling water tank 21. The water inlet 211 and the water outlet 212 of the cooling water tank 21 are respectively connected to the external circulating cooling water. The external circulating cooling water uses a water tank 23 and a water pump 26. The water pump 26 transfers the cooling water from the water tank 23 to the water inlet 211 of the cooling water tank 21, and then flows back to the water tank 23 from the water outlet 212. Of course, after the cooling water flows out of the water outlet 212, it can first flow into the condenser 24 to dissipate heat before flowing back to the water tank 23.

[0026] The plurality of activated carbon plates 3 are evenly distributed around a mounting shaft 4 and are detachably fixedly connected to the mounting shaft 4. The axis of the mounting shaft 4 is perpendicular to the flow direction of the exhaust gas therein. The output end of a drive assembly is fixedly connected to the mounting shaft 4 for driving the mounting shaft 4 to rotate. Figure 1 As shown, there are four activated carbon plates 3. The outer edges of these four activated carbon plates 3 are fixed by metal frames. Dovetail blocks are provided on one side, which removably engage with the four dovetail grooves on the mounting shaft 4. Of course, the number of activated carbon plates 3 can be two, three, or more, depending on the actual situation.

[0027] In order to enhance the heat dissipation capacity of the air collecting pipe 22 in the cooling water tank 21 and to cool the exhaust gas faster and better, a plurality of heat sinks 221 are provided on the pipe body of each air collecting pipe 22, and the heat sinks 221 are perpendicular to the axis of the air collecting pipe 22. Figure 2As shown, there are six heat sinks 221 on each air collecting pipe 22, and the number can be set according to needs. When the exhaust gas flows toward the air collecting pipe 22, the diameter of the air collecting pipe 22 decreases from large to small, which accelerates and cools the exhaust gas flow. At the same time, the heat sink 221 and the cooling water further cool the exhaust gas flow, so that the exhaust gas flow reaches an optimal temperature that can be adsorbed and purified by activated carbon. Furthermore, in order to improve the efficiency of the exhaust gas flow entering the air collecting pipe 22, a plurality of the air collecting pipes 22 are evenly arranged in horizontal and vertical rows, and an air guide cone 25 is provided between every four air collecting pipes 22 on the windward side of the cooling water tank 21 to evenly guide the air flow thereto to the four air collecting pipes 22. As shown Figure 3 As shown, the wind guide cone 25 is roughly pyramid-shaped, with each surface facing the air collecting pipe 22 being configured as a curved wind guide surface 251 with a wide top and narrow bottom. These surfaces first fit over the large openings of the air collecting pipes 22, and the four wind guide surfaces 251 direct the exhaust gas flow to the four air collecting pipes 22, respectively. During installation, the edges of the large openings of the four air collecting pipes 22 can be used to press down on the bottom edge of the wind cone to secure it. The small opening of the air collecting pipe 22 extends out of the leeward side of the cooling water tank 21, where it is threadedly connected to the small opening with a nut. Together with the large opening, it is clamped and secured to the cooling water tank 21. Sealant can be applied to the gaps to seal them.

[0028] In one embodiment, if Figure 2 As shown, the water inlet 211 of the cooling water tank 21 is located at the lower side of the cooling water tank 21 and faces the tube body of the lowest air collecting pipe 22. The axis of the lowest air collecting pipe 22 is located below the axis of the water inlet 211. When the cooling water enters the cooling water tank 21 through the water inlet 211, it impacts the tube body of the lowest air collecting pipe 22. Most of the cooling water flows through the upper part of the tube body, and a small part flows through the lower part of the tube body. This ensures that most of the water flows to the upper air collecting pipes 22 as quickly as possible, thereby improving the flow and heat absorption efficiency of the water.

[0029] In one embodiment, referring to Figure 1The drive assembly includes an impeller 51 rotatably connected to the air duct 1 and immediately behind the cooling assembly 2, and a reduction pulley 52. ​​The axis of the impeller 51 is perpendicular to the flow direction of the exhaust gas at that location, and the rotating shaft of the impeller 51 is transmission-connected to the mounting shaft 4 via the reduction pulley 52. ​​Since the activated carbon plates 3 are air-permeable, it is difficult to drive the four activated carbon plates 3 and the mounting shaft 4 to rotate by blowing air directly onto the activated carbon plates 3. Therefore, the impeller 51 is provided and the reduction pulley 52 is used to drive the mounting shaft 4 to rotate slowly. In addition, the drive assembly also includes a drive motor 53 and a gear component. The output shaft of the drive motor 53 is transmission-connected to the rotating shaft of the impeller 51 via the gear component, and the gear component can be disengaged. When the air flow velocity is too low to drive the impeller 51, the gear part is driven by the driving motor 53 to rotate the impeller 51; when the air flow velocity is high enough to drive the impeller 51, the gear part is disconnected, and the driving motor 53 is disconnected from the impeller 51 to prevent the motor from becoming a resistance that hinders the rotation of the impeller 51.

[0030] In one embodiment, referring to Figure 1 The air duct 1 is provided with air-binding parts 11 at the position between the cooling assembly 2 and the impeller 51 and at the position between the impeller 51 and the mounting shaft 4, so that the air flow is concentrated on the side of the impeller 51 and the activated carbon plate 3 that rotates in the same direction, which can provide more concentrated thrust and help to drive the impeller 51 and the activated carbon plates 3 to rotate. Figure 1 As shown, the air flow is concentrated and blown toward the side that causes the impeller 51 and the activated carbon plate 3 to rotate counterclockwise.

[0031] In addition, the air duct 1 is further provided with a mesh plate 6 at the air binding portion 11 in front of the mounting shaft 4. The mesh plate 6 is used to disperse the airflow blowing toward the activated carbon plate 3 to make its distribution more uniform, so that the airflow can be evenly blown toward the activated carbon plate 3, thereby improving the adsorption effect of the activated carbon plate 3.

[0032] In one embodiment, if Figure 1 As shown, the system also includes a heating box 7, which is wound with multiple coils of heat pipes 8. A portion of each coil of heat pipes 8 extends into the air duct 1 and is located in front of the cooling assembly 2. The portion of heat pipes 8 located within the air duct 1 is angled in the direction of airflow, approaching the cooling assembly 2. The tilted arrangement of the heat pipes 8 within the air duct 1 increases the length of the heat pipes 8 within the air duct 1 and also helps reduce vibration caused by airflow impact. The heating box 7 is also equipped with an electric heating wire. The heat pipes 8 transfer heat from the exhaust flow at the front of the air duct 1 to the heating box 7, thereby heating the heating box 7 and improving the utilization of the exhaust flow's heat. If the exhaust flow's heat is insufficient to heat the heating box 7 and regenerate the activated carbon plates 3, the electric heating wires can be activated to heat the activated carbon plates 3. Normally, the heating box 7 is turned on to dissipate heat, while the heat pipes 8 continuously transfer heat to the heating box 7 for dissipation, thereby absorbing heat and cooling the exhaust flow.

[0033] A method for treating waste gas from an environmentally friendly device, comprising: first cooling and accelerating the waste gas; then concentrating the accelerated airflow and blowing it toward one side of an impeller 51 to rotate the impeller 51; the impeller 51 drives multiple activated carbon plates 3 at the rear to rotate slowly in the same direction through a reduction pulley; concentrating and homogenizing the airflow again before the activated carbon plate 3, so that the airflow blows toward the side of the activated carbon plate 3 that rotates in the same direction as the impeller 51; and, when the airflow cannot drive the impeller 51 to rotate, connecting a drive motor 53 to the impeller 51 to drive the impeller 51 to rotate; when the airflow can drive the impeller 51 to rotate, disconnecting the drive motor 53 from the impeller 51; after the activated carbon plate 3 is enriched, replacing it with a regenerated or new activated carbon plate 3, and placing the replaced activated carbon plate 3 in a heating box 7 for heating and regeneration.

[0034] The above embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the embodiments as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An environmentally friendly waste gas treatment device comprising an air duct, a cooling assembly disposed within the air duct, and a plurality of activated carbon plates disposed within the air duct and behind the cooling assembly, characterized in that: The cooling assembly includes a cooling water tank and a plurality of trumpet-shaped air collecting pipes, and the plurality of air collecting pipes are evenly arranged on the cooling water tank. The large opening end of the air collecting pipe is sealed and fixedly connected to the windward side of the water tank, the pipe body of the air collecting pipe is connected to the cooling water tank, and the small opening end of the air collecting pipe is sealed and fixedly connected to the leeward side of the cooling water tank. The water inlet and water outlet of the cooling water tank are respectively connected to the external circulating cooling water, and the plurality of activated carbon plates are evenly distributed around a mounting shaft and are respectively detachably fixedly connected to the mounting shaft. The axis of the mounting shaft is perpendicular to the flow direction of the exhaust gas at the location, and the output end of a driving assembly is fixedly connected to the mounting shaft for driving the mounting shaft to rotate; the plurality of air collecting pipes are evenly arranged in horizontal and vertical rows, and the windward side of the cooling water tank is An air guide cone is provided between the four air collecting pipes for evenly guiding the airflow thereto to the four air collecting pipes; the driving assembly includes an impeller rotatably connected in the air duct and immediately following the cooling assembly, and a reduction pulley component, the axis of the impeller is perpendicular to the flow direction of the exhaust gas thereat, and the rotating shaft of the impeller is connected to the mounting shaft through the reduction pulley component; the driving assembly also includes a driving motor and a gear component, the output shaft of the driving motor is connected to the rotating shaft of the impeller through the gear component, and the gear component can be disengaged; the air duct is provided with an air binding portion at a position between the cooling assembly and the impeller and at a position between the impeller and the mounting shaft, so that the airflow is concentrated and blown to one side of the impeller and the activated carbon plate so that the two rotate in the same direction; and a heating box is also included.

2. The waste gas treatment and environmental protection equipment according to claim 1, characterized in that: A plurality of heat sinks are provided on the tube body of each air collecting tube, and the heat sinks are perpendicular to the axis of the air collecting tube.

3. The waste gas treatment and environmental protection equipment according to claim 1, characterized in that: The water inlet of the cooling water tank is located below the side of the cooling water tank and faces the pipe body of the lowest air collecting pipe, and the axis of the lowest air collecting pipe is located below the axis of the water inlet.

4. The waste gas treatment and environmental protection equipment according to claim 1, characterized in that: The air duct is further provided with a mesh plate at the air confinement portion before the shaft is installed.

5. The waste gas treatment and environmental protection equipment according to claim 1, characterized in that: Multiple circles of heat-conducting pipes are wound inside the heating box, and a portion of each circle of the heat-conducting pipes extends into the air duct and is located in front of the cooling component. The portion of the heat-conducting pipes located in the air duct is inclined along the direction of air flow and approaches the cooling component. An electric heating wire is also provided on the heating box.

6. A method for treating waste gas from environmental protection equipment, characterized in that: The environmental protection equipment for treating waste gas according to any one of claims 1 to 5 is provided, and the steps for treating waste gas are as follows: Cool down and speed up the exhaust gas; Then the accelerated airflow is concentrated and blown to one side of the impeller to make the impeller rotate; The impeller drives the multiple activated carbon plates at the rear to rotate slowly in the same direction through the reduction pulley; The airflow is concentrated and homogenized again before the activated carbon plate so that the airflow is blown to the side of the activated carbon plate that rotates in the same direction as the impeller; Moreover, when the airflow cannot drive the impeller to rotate, a driving motor is connected to the impeller to drive the impeller to rotate; when the airflow can drive the impeller to rotate, the connection between the driving motor and the impeller is disconnected; after the activated carbon plate is enriched, a regenerated or new activated carbon plate is replaced, and the replaced activated carbon plate is placed in a heating box for heating and regeneration.

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