Smoke exhaust device for waste incineration power generation furnace

Abstract

The utility model discloses a fume extractor for a waste incineration power generation furnace, which relates to the technical field of energy regeneration and environmental protection and comprises a shell, a first electric cylinder is mounted at the top end of the shell, a clamping sleeve is fixedly connected to the output end of the first electric cylinder, and a clamping strip is slidably connected to the bottom end of the clamping sleeve. The bottom end of the clamping strip is fixedly connected with an activated carbon net, a smoke inlet pipe penetrates through the front face of the shell, a first cavity is formed in the top of the shell, a smoke outlet pipe penetrates through the back face of the shell, a second cavity is formed in the bottom of the inner side of the shell, and a negative pressure fan is installed on one side wall of the second cavity. According to the utility model, a series of structures are arranged, so that the activated carbon net and the device can be quickly detached, the difficulty in detaching the activated carbon net is reduced, the time for replacing the activated carbon net is saved, meanwhile, the probability of blocking the activated carbon net can be reduced, and the adsorption effect of the activated carbon net on dioxin in flue gas is improved.

Description

Technical Field

[0001] This utility model relates to the field of energy regeneration and environmental protection technology, specifically to a flue gas exhaust device for a waste incineration power plant. Background Technology

[0002] Waste-to-energy incinerators reuse waste by generating heat through incineration. However, because harmful substances in the waste decompose at high temperatures during incineration, a large amount of gas containing toxic substances is produced. Therefore, waste-to-energy incinerators usually need to be equipped with appropriate flue gas exhaust systems to reduce the harmful substances in the flue gas.

[0003] Existing flue gas treatment systems for waste incineration power plants include heat recovery, preliminary dust removal, desulfurization and denitrification, and activated carbon adsorption. Activated carbon adsorption, as the final treatment device for flue gas, effectively removes dioxins from the flue gas and is therefore a relatively important flue gas treatment system. However, existing activated carbon adsorption devices for flue gas treatment often encounter problems when adsorbing harmful substances from the flue gas after dust removal and desulfurization. The activated carbon mesh, the main structure of the device, is easily saturated, requiring timely regeneration or replacement. Since the activated carbon mesh is usually clipped into the device, it is difficult to remove, making the replacement process cumbersome and time-consuming. Furthermore, even after dust removal, fine dust particles remain in the flue gas. When the flue gas passes through the activated carbon mesh, these particles easily accumulate in the mesh pores, leading to blockage and affecting the adsorption efficiency of the activated carbon mesh for dioxins. Utility Model Content

[0004] The purpose of this invention is to provide a flue gas exhaust device for a waste incineration power plant to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flue gas exhaust device for a waste incineration power plant, comprising a shell, a first electric cylinder installed at the top of the shell, a retaining sleeve fixedly connected to the output end of the first electric cylinder, a retaining bar slidably connected to the bottom end of the retaining sleeve, an activated carbon mesh fixedly connected to the bottom end of the retaining bar, a flue gas inlet pipe penetrating through the front of the shell, a first cavity formed at the top of the shell, a flue gas outlet pipe penetrating through the back of the shell, a second cavity formed at the bottom of the inner side of the shell, a negative pressure fan installed on one side wall of the second cavity, a flexible hose penetrating through the top of the second cavity, a suction head fixedly connected to the top of the flexible hose, a brush head fixedly connected to one side wall of the suction head, a second electric cylinder provided at the bottom of the suction head, a trolley provided inside the shell, a groove formed in the middle of the trolley, and a third electric cylinder installed on the other side wall of the shell.

[0006] Preferably, the activated carbon mesh is movably embedded in the first cavity via a first electric cylinder, and the smoke inlet pipe communicates with the interior of the smoke outlet pipe via the first cavity.

[0007] Preferably, one side wall of the trolley is fixedly connected to the output end of the third electric cylinder, and a wheel is installed at the bottom of the trolley. The trolley is slidably connected to the outer shell through the third electric cylinder and the wheel.

[0008] Preferably, the activated carbon mesh is slidably connected to the trolley via a groove.

[0009] Preferably, a filter screen is embedded in the inner wall of the second cavity, and the vacuum head is connected to the interior of the second cavity through a flexible hose.

[0010] Preferably, the output end of the second electric cylinder is fixedly connected to the suction head, and the suction head is slidably connected to the activated carbon mesh through the second electric cylinder.

[0011] Preferably, an air outlet is provided at the bottom of the front of the outer casing, and the exhaust port of the negative pressure fan is fixedly connected to the air outlet.

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

[0013] 1. The flue gas exhaust device for this waste incineration power plant uses a clamping sleeve, clamping strip, trolley, and slot. When the activated carbon mesh inside the device needs to be replaced, it can be pushed into the slot of the trolley by the downward push of the first electric cylinder. At the same time, under the push of the third electric cylinder, the trolley will be pushed out from one side of the device shell, so that the clamping strip on the activated carbon mesh is separated from the clamping sleeve on the output end of the first electric cylinder. This achieves rapid separation of the activated carbon mesh from the device, reduces the difficulty of disassembling the activated carbon mesh, and saves time for replacing the activated carbon mesh.

[0014] 2. The flue gas exhaust device for this waste incineration power plant, through a dust suction head, hose, brush head, and second electric cylinder, allows the clogged mesh of the activated carbon mesh to be detached from the mesh under the wiping action of the brush head. In conjunction with the second cavity connected by the hose and the negative pressure fan, the dust particles wiped out from the activated carbon mesh are sucked into the second cavity by the negative pressure, so that the dust can be completely separated from the activated carbon mesh, thereby reducing the probability of activated carbon mesh clogging and improving the adsorption effect of activated carbon mesh on dioxins in flue gas. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the slider and brush bar structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the card sleeve and card strip structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the drawer plate and slot structure of this utility model.

[0019] In the diagram: 1. First electric cylinder; 2. Outer shell; 3. Smoke inlet pipe; 4. Air outlet; 5. Trolley; 6. Smoke outlet pipe; 7. First cavity; 8. Sleeve; 9. Slip bar; 10. Activated carbon mesh; 11. Vacuum head; 12. Hose; 13. Brush head; 14. Second electric cylinder; 15. Filter screen; 16. Second cavity; 17. Negative pressure fan; 18. Third electric cylinder; 19. Insert groove; 20. Casters. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] like Figures 1 to 4As shown, the exhaust device for the waste incineration power plant in this embodiment includes a housing 2. A first electric cylinder 1 is installed at the top of the housing 2. A retaining sleeve 8 is fixedly connected to the output end of the first electric cylinder 1. A retaining strip 9 is slidably connected to the bottom end of the retaining sleeve 8. An activated carbon mesh 10 is fixedly connected to the bottom end of the retaining strip 9. An inlet pipe 3 passes through the front of the housing 2. A first cavity 7 is opened at the top of the housing 2. An outlet pipe 6 passes through the back of the housing 2. A second cavity 16 is opened at the bottom of the inner side of the housing 2. A negative pressure fan 17 is installed on one side wall of the second cavity 16. A flexible hose 12 passes through the top of the second cavity 16. A suction head 11 is fixedly connected to the top of the flexible hose 12. A brush head 13 is fixedly connected to one side wall of the suction head 11. A second electric cylinder 14 is provided at the bottom of the suction head 11. A trolley 5 is provided inside the housing 2. A groove 19 is opened in the middle of the trolley 5. A third electric cylinder 18 is installed on the other side wall of the housing 2.

[0024] Specifically, the bottom of the ferrule 8 is provided with a sliding groove, and the top of the clip 9 is fixed with a "T-shaped strip," allowing the clip 9 to smoothly engage with the ferrule 8. This facilitates the connection between the first electric cylinder 1 and the clip 9 via the ferrule 8, enabling the activated carbon mesh 10 at the bottom of the clip 9 to move smoothly into the first cavity 7, or be pushed from the first cavity 7 into the slot 19 of the trolley 5. This facilitates the disassembly and subsequent replacement of the activated carbon mesh 10. The activated carbon mesh 10 adsorbs dioxins in the flue gas, thereby purifying the flue gas. The second cavity 16 collects the inhaled dust. The negative pressure fan 17 creates negative pressure at the second cavity 16 and the opening of the hose 12, thus facilitating the collection of dust scraped off by the scraper at the suction head 11. The system collects dust to effectively separate it from the activated carbon mesh 10. The length of the hose 12 can extend and shorten as the suction head 11 moves, allowing the dust at the suction head 11 to smoothly enter the second cavity 16 for collection along the hose 12. The brush head 13 allows the suction head 11 to fit more closely to the mesh of the activated carbon mesh 10, thereby facilitating the wiping and cleaning of the clogged mesh on the activated carbon mesh 10 and reducing the probability of clogging. The second electric cylinder 14 pushes the suction head 11, allowing it to slide up and down along the activated carbon mesh 10. The third electric cylinder 18 pushes the trolley 5, allowing the activated carbon mesh 10 to be pushed out from one side of the device, thus facilitating the replacement of the activated carbon mesh 10.

[0025] Furthermore, the activated carbon mesh 10 is movably embedded and connected to the first cavity 7 via the first electric cylinder 1, and the inlet pipe 3 is connected to the inside of the outlet pipe 6 via the first cavity 7, so that the flue gas can pass smoothly through the activated carbon mesh 10 after entering the first cavity 7, and the activated carbon mesh 10 can adsorb the dioxins in the flue gas, thereby realizing the treatment of dioxins in the flue gas by the device.

[0026] Furthermore, one side wall of the trolley 5 is fixedly connected to the output end of the third electric cylinder 18, and a wheel 20 is installed at the bottom of the trolley 5. The trolley 5 is slidably connected to the outer shell 2 through the third electric cylinder 18 and the wheel 20. The function of the trolley 5 is to receive the activated carbon mesh 10 that is pushed down, and at the same time facilitate the removal of the activated carbon mesh 10 from the device, thereby saving time for disassembling and replacing the activated carbon mesh 10.

[0027] Furthermore, the activated carbon mesh 10 is slidably connected to the trolley 5 via the groove 19, allowing the activated carbon mesh 10 to be quickly removed from the device, thus facilitating the replacement of the activated carbon mesh 10.

[0028] Furthermore, a filter screen 15 is embedded in the inner wall of the second cavity 16. The vacuum head 11 is connected to the interior of the second cavity 16 through the hose 12. The filter screen 15 has a mesh size of 300. The function of the filter screen 15 is to intercept and retain dust in the second cavity 16, so that the dust on the activated carbon mesh 10 can be completely separated from the activated carbon mesh 10, thereby reducing the probability of the activated carbon mesh 10 becoming clogged.

[0029] Furthermore, the output end of the second electric cylinder 14 is fixedly connected to the suction head 11. The suction head 11 is slidably connected to the activated carbon mesh 10 through the second electric cylinder 14, so that the suction head 11 can slide up and down against the surface of the activated carbon mesh 10, thereby cleaning the dust clogging the surface of the activated carbon mesh 10 by the brush head 13 on the suction head 11, thereby reducing the probability of the activated carbon mesh 10 becoming clogged.

[0030] Furthermore, an air outlet 4 is provided at the bottom of the front of the outer casing 2. The exhaust port of the negative pressure fan 17 is fixedly connected to the air outlet 4, so that the negative pressure fan 17 can blow out the air in the second cavity 16 and the hose 12, so that the hose 12 and the suction port of the suction head 11 can be in a negative pressure state, thereby realizing the absorption and collection of dust scraped off from the activated carbon mesh 10.

[0031] The usage method of this embodiment is as follows: When using the flue gas exhaust device for the incineration power plant, the device needs to be connected to an external power source first. Then, the inlet pipe 3 is connected to the desulfurization tower, and the outlet pipe 6 is connected to the exhaust chimney. The flue gas then enters the first cavity 7 of the outer casing 2 through the inlet pipe 3, passes through the activated carbon mesh 10, and is discharged from the outlet pipe 6. After the device is in use, the negative pressure fan 17 can be started, causing it to discharge the air from the second cavity 16 and the hose 12 through the outlet 4, creating negative pressure at the suction head 11 connected to the hose 12. Simultaneously, the second electric cylinder 14 is activated, pushing the suction head 11 up and down along the surface of the activated carbon mesh 10. This causes the brush head 13 on the suction head 11 to scrape the surface of the activated carbon mesh 10, removing the dust clogging the holes in the activated carbon mesh 10. The dust is then removed by the suction head 11. The activated carbon is drawn into the hose 12 and then enters the second cavity 16 through the hose 12. It is then trapped by the filter screen 15 in the second cavity 16, so that the dust clogging the activated carbon mesh 10 can be completely separated from the activated carbon mesh 10. When the activated carbon mesh 10 needs to be replaced, the first electric cylinder 1 can be activated, so that the first electric cylinder 1 pushes the activated carbon mesh 10 to the bottom trolley 5, so that the activated carbon mesh 10 is pushed into the groove 19 of the trolley 5. Then the third electric cylinder 18 can be activated, so that the third electric cylinder 18 pushes the trolley 5 to slide out from one side of the outer shell 2, so that the trolley 5 and the activated carbon mesh 10 embedded in the trolley 5 through the groove 19 slide out from one side of the outer shell 2. At the same time, the retaining strip 9 on the activated carbon mesh 10 will slide and separate from the retaining sleeve 8 on the first electric cylinder 1. After the activated carbon mesh 10 is pushed out of the outer shell 2, the activated carbon mesh 10 can be removed from the trolley 5 and replaced.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A flue gas exhaust device for a waste incineration power plant, comprising a casing (2), characterized in that: A first electric cylinder (1) is installed at the top of the outer shell (2). A retainer (8) is fixedly connected to the output end of the first electric cylinder (1). A retainer strip (9) is slidably connected to the bottom end of the retainer strip (8). An activated carbon mesh (10) is fixedly connected to the bottom end of the retainer strip (9). An inlet pipe (3) penetrates the front of the outer shell (2). A first cavity (7) is opened at the top of the outer shell (2). An outlet pipe (6) penetrates the back of the outer shell (2). A second cavity (16) is opened at the bottom of the inner side of the outer shell (2). A negative pressure fan (17) is installed on one side wall of the cavity (16). A flexible hose (12) passes through the top of the second cavity (16). A vacuum head (11) is fixedly connected to the top of the flexible hose (12). A brush head (13) is fixedly connected to one side wall of the vacuum head (11). A second electric cylinder (14) is provided at the bottom of the vacuum head (11). A trolley (5) is provided inside the outer shell (2). A groove (19) is opened in the middle of the trolley (5). A third electric cylinder (18) is installed on the other side wall of the outer shell (2).

2. The flue gas exhaust device for a waste incineration power plant according to claim 1, characterized in that: The activated carbon mesh (10) is movably embedded in the first cavity (7) through the first electric cylinder (1), and the smoke inlet pipe (3) is connected to the inside of the smoke outlet pipe (6) through the first cavity (7).

3. The flue gas exhaust device for a waste incineration power plant according to claim 1, characterized in that: One side wall of the trolley (5) is fixedly connected to the output end of the third electric cylinder (18). A wheel (20) is installed at the bottom of the trolley (5). The trolley (5) is slidably connected to the outer shell (2) through the third electric cylinder (18) and the wheel (20).

4. The flue gas exhaust device for a waste incineration power plant according to claim 1, characterized in that: The activated carbon mesh (10) is slidably connected to the trolley (5) through a groove (19).

5. The flue gas exhaust device for a waste incineration power plant according to claim 1, characterized in that: The inner wall of the second cavity (16) is fitted with a filter screen (15), and the vacuum head (11) is connected to the interior of the second cavity (16) through a hose (12).

6. The flue gas exhaust device for a waste incineration power plant according to claim 1, characterized in that: The output end of the second electric cylinder (14) is fixedly connected to the dust suction head (11), and the dust suction head (11) is slidably connected to the activated carbon mesh (10) through the second electric cylinder (14).

7. The flue gas exhaust device for a waste incineration power plant according to claim 1, characterized in that: An air outlet (4) is provided at the bottom of the front of the outer casing (2), and the exhaust port of the negative pressure fan (17) is fixedly connected to the air outlet (4).

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