Flue gas purification device for waste incineration power generation

Abstract

The utility model provides a waste incineration power generation flue gas purification device, which relates to the technical field of flue gas purification, and comprises a purification flue gas pipe for flue gas purification, and two groups of purification mechanisms are arranged in the purification flue gas pipe. The two groups of purification mechanisms are respectively used for placing a desulfurizing agent and activated carbon, each purification mechanism comprises a purification cover rotationally connected in the purification flue pipe, the purification cover is arranged in the purification flue and is divided into a plurality of cavities, and a baffle capable of controlling whether flue gas passes through the cavity is arranged at the hollow part of the outer wall of each cavity; therefore, when the purification cover in the purification flue purifies flue gas, the multiple cavities in the purification cover can be alternately used by controlling whether the baffles are attached to the hollowed-out cavity walls of the cavities or not, when a person replaces a desulfurizing agent or activated carbon in the cavities, the cavities in other positions can be used, and continuous purification treatment on the flue gas is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas purification, in particular to a flue gas purification device for garbage incineration power generation. Background Art

[0002] Waste incineration is the process of reducing the volume of waste through oxidation at high temperature through appropriate thermal decomposition, combustion, melting and other reactions, turning it into residue or molten solid matter. Therefore, the heat generated during the waste incineration process can be used to generate electricity. At the same time, the harmful smoke generated during the waste incineration process needs to be filtered and discharged.

[0003] Therefore, after searching, the prior art waste incineration power generation flue gas purification device, publication number: CN213528064U, in the first equal diameter circular pipe section, due to the consistent pipe diameter, the flue gas flows smoothly, which plays a role in stabilizing pressure. After entering the variable diameter expansion section, the pipe diameter gradually increases, which plays a role in slowing down the flow rate. In addition, an elliptical pipe section is arranged in the variable diameter expansion section, and a desulfurizer injection port and an activated carbon injection port are arranged at the long axis end of the elliptical pipe section. Since this pipe section is an arc-shaped curved pipe extending downward, when the desulfurizer and activated carbon are sprayed, due to the effect of gravity, the desulfurizer and activated carbon can move downward, but due to the smoke resistance, its radial injection range to the side will be affected. Since the short axis is short, that is, the pipe diameter in this direction is small, this pipe section is suitable for the situation where the radial injection range of the desulfurizer and activated carbon is small, so that the sprayed desulfurizer and activated carbon can react more fully with the substances in the smoke, thereby having a better smoke treatment effect and higher efficiency.

[0004] However, the existing patents have shortcomings when used:

[0005] When the desulfurizer and activated carbon move downward, they will accumulate in the bend section. In order to ensure the flue gas circulation effect, it is necessary to regularly clean the desulfurizer and activated carbon accumulated in the bend section. When cleaning the desulfurizer and activated carbon, the flue gas treatment process needs to be suspended. Therefore, the flue gas treatment process is discontinuous, affecting the treatment efficiency. Utility Model Content

[0006] In view of the technical problem that the flue gas treatment process in the patent mentioned in the background technology is discontinuous and affects the treatment efficiency, the utility model provides a flue gas purification device for waste incineration power generation.

[0007] The technical solution adopted by the utility model is: a waste incineration power generation flue gas purification device, including a purification smoke pipe for flue gas purification, two groups of purification mechanisms are arranged in the purification smoke pipe, the two groups of purification mechanisms are used to place desulfurizer and activated carbon respectively, and the purification mechanism includes a purification cover rotatably connected in the purification smoke pipe, a plurality of chambers distributed in a circular array are arranged in the purification cover, the cavity walls of the chambers facing the pipe openings at both ends of the purification smoke pipe are hollowed out, each cavity of the purification cover facing the outer wall of the smoke inlet of the purification smoke pipe is fixedly connected with an electric push rod, and the telescopic end of the electric push rod is fixedly connected with a baffle for closing the hollow cavity wall of the chamber.

[0008] Preferably, a support frame is fixedly connected to the outer wall of the purification hood at the position of the baffle, the electric push rod is fixed on the support frame, and the baffle is sleeved on the support frame.

[0009] Preferably, a motor for driving the purification hood to rotate is fixedly connected inside the purification smoke pipe, and the main shaft of the motor is rotatably connected to the inner sides of a plurality of baffles.

[0010] Preferably, the purification mechanism further comprises a storage box fixedly connected to the outer wall of the purification smoke pipe, the bottom of the storage box is connected to a feed pipe extending into the purification smoke pipe, and one end of the feed pipe is sleeved with a telescopic tube for extending into the chamber.

[0011] Preferably, the telescopic tube is aligned with a chamber close to the bottom of the smoke purification tube, and a pneumatic telescopic rod for pushing the telescopic tube to move is fixedly connected to the outer wall of the feed conveying tube.

[0012] Preferably, a connecting pipe for plugging with a telescopic pipe is fixedly connected to the cavity wall of the chamber facing the smoke outlet of the purified smoke pipe, a spring rod is fixedly connected to the connecting pipe opening, and a sealing plate for sealing the connecting pipe opening is fixedly connected to the telescopic end of the spring rod.

[0013] Preferably, a discharge port is provided on the wall of the chamber close to the wall of the purification smoke pipe, a shovel plate is inserted at the discharge port, and an embedded spring rod is fixedly connected to the inner wall of the discharge port, the telescopic end of the spring rod in the discharge port is connected to the shovel plate, the bottom edge of the inner wall of the purification smoke pipe is hollowed out at the position of the purification hood, and an electric push rod is also fixedly connected to the hollow part of the purification smoke pipe, the telescopic end of the electric push rod on the purification smoke pipe is also fixedly connected to a pneumatic telescopic rod, and the telescopic end of the pneumatic telescopic rod on the electric push rod is used to clamp the outer wall of the shovel plate.

[0014] Compared with the prior art, the advantages and positive effects of the utility model are:

[0015] 1. In the utility model, a purification hood is arranged in the purification flue, and the purification hood is divided into several chambers. A baffle that can control whether the flue gas passes through the chamber is arranged at the hollow part of the outer wall of each chamber. Therefore, when the purification hood purifies the flue gas in the purification flue, several chambers in the purification hood can be used alternately by controlling whether the baffle is in contact with the hollow wall of the chamber. When personnel replace the desulfurizer or activated carbon in the chamber, chambers in other positions can be used to ensure continuous purification of the flue gas.

[0016] 2. In the utility model, by arranging a feeding pipe, a telescopic pipe and a shovel plate, the shovel plate is moved to open the discharge port of the chamber, so that the desulfurizer or activated carbon in the chamber can be discharged through the hollow part at the bottom of the purified smoke pipe, and then the desulfurizer or activated carbon in the storage box can be refilled into the chamber through the telescopic pipe of the feeding pipe, thereby realizing the replacement of the desulfurizer or activated carbon. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the waste incineration power generation flue gas purification device proposed in the utility model;

[0018] Figure 2 The utility model proposes a waste incineration power generation flue gas purification device Figure 1 A schematic cross-sectional structure diagram of;

[0019] Figure 3 The utility model proposes a waste incineration power generation flue gas purification device Figure 2 A schematic cross-sectional structure diagram of;

[0020] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0021] Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0022] Legend: 1. Purification smoke pipe; 2. Storage box; 3. Motor; 4. Purification hood; 5. Electric push rod; 6. Support frame; 7. Baffle; 8. Chamber; 9. Feed pipe; 10. Spring rod; 11. Sealing plate; 12. Telescopic tube; 13. Pneumatic telescopic rod; 14. Connecting pipe; 15. Shovel plate; 16. Discharge port. DETAILED DESCRIPTION

[0023] In the description of the present invention, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They 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 operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The following is combined with Figure 1-5 The utility model is further described.

[0026] In order to solve the technical problems in the background technology, the present application provides: a waste incineration power generation flue gas purification device, including a purification smoke pipe 1 for flue gas purification, two groups of purification mechanisms are arranged in the purification smoke pipe 1, the two groups of purification mechanisms are used to place desulfurizer and activated carbon respectively, and the purification mechanism includes a purification hood 4 rotatably connected in the purification smoke pipe 1, a motor 3 for driving the purification hood 4 to rotate is fixedly connected in the purification smoke pipe 1, the purification hood 4 is driven to rotate by the motor 3, when the desulfurizer or activated carbon in the purification hood 4 is replaced, the desulfurizer and activated carbon in the purification hood 4 are directed toward the ground, and the desulfurizer or activated carbon in the purification hood 4 can be automatically discharged under the action of gravity, the main shaft of the motor 3 is rotatably connected to the inner side of a plurality of baffles 7, A plurality of chambers 8 distributed in a circular array are arranged in the purification hood 4. The chamber walls of the chambers 8 facing the two ends of the purification smoke pipe 1 are hollowed out. A plurality of chambers 8 can be used to place desulfurizers or activated carbon separately, and a corresponding number of chambers 8 can be selected to be opened according to the amount of flue gas passing through the purification smoke pipe 1. Moreover, a plurality of chambers 8 in the purification hood 4 can be used alternately, so that when the desulfurizer or activated carbon in a chamber 8 loses its purification effect, the desulfurizer or activated carbon in the chamber 8 at other positions can be used to purify the flue gas. The desulfurizer or activated carbon that has lost its purification effect is rotated through the purification hood 4, so that the chamber 8 faces the bottom of the purification smoke pipe 1, so that the desulfurizer or activated carbon that has lost its effect can be unloaded and then new desulfurizer or activated carbon can be added:

[0027] Further discussion: Each chamber 8 of the outer wall of the purification hood 4 facing the smoke inlet of the purification smoke pipe 1 is fixedly connected with an electric push rod 5, and the telescopic end of the electric push rod 5 is fixedly connected with a baffle 7 for closing the hollow cavity wall of the chamber 8. The outer wall of the purification hood 4 is located at the position of the baffle 7 and is fixedly connected with a support frame 6. The electric push rod 5 is fixed on the support frame 6, and the baffle 7 is sleeved on the support frame 6. The support frame 6 is set to realize the fixing of the position of the electric push rod 5 and limit the sliding direction of the baffle 7, that is, the baffle 7 is driven to move by the electric push rod 5 on the support frame 6, and the baffle 7 is attached to or away from the hollow cavity wall of the chamber 8, so that the smoke does not pass through the chamber 8 or passes through the chamber 8:

[0028] Further discussion: The purification mechanism also includes a storage box 2 fixedly connected to the outer wall of the purification smoke pipe 1, and the bottom of the storage box 2 is connected to a delivery pipe 9 extending into the purification smoke pipe 1. One end of the delivery pipe 9 is sleeved with a telescopic tube 12 for extending into the chamber 8. The telescopic tube 12 is aligned with the chamber 8 near the bottom of the purification smoke pipe 1, and the outer wall of the delivery pipe 9 is fixedly connected to a pneumatic telescopic rod 13 for pushing the telescopic tube 12 to move. When the desulfurizer or activated carbon in the chamber 8 toward the bottom of the purification smoke pipe 1 is unloaded, the pneumatic telescopic rod 13 is extended to push the telescopic tube 12 into the empty chamber 8. In addition, in actual use, a switch valve can be installed in the delivery pipe 9. When the telescopic tube 12 enters the chamber 8, the switch valve is opened, so that the desulfurizer or activated carbon stored in the storage box 2 enters the chamber along the delivery pipe 9 and the connecting pipe 14. 8, the emptied chamber 8 is refilled with a desulfurizer or activated carbon, and a connecting pipe 14 for plugging with a telescopic pipe 12 is fixedly connected to the cavity wall of the chamber 8 facing the smoke outlet of the purified smoke pipe 1, and a spring rod 10 is fixedly connected to the pipe mouth of the connecting pipe 14, and a sealing plate 11 for blocking the pipe mouth of the connecting pipe 14 is fixedly connected to the telescopic end of the spring rod 10. As shown in the figure, the end of the telescopic pipe 12 is hollowed out, so when the telescopic pipe 12 enters the chamber 8 along the connecting pipe 14, the sealing plate 11 can be pushed to overcome the elastic force of the spring rod 10 connected thereto and move until the hollow end of the telescopic pipe 12 enters the chamber 8, so that the desulfurizer or activated carbon can enter the chamber 8. Under normal circumstances, the sealing plate 11 will seal the end of the connecting pipe 14 under the support of the spring rod 10 to prevent the desulfurizer or activated carbon in the chamber 8 from spilling out:

[0029] Further discussion: a discharge port 16 is provided on the wall of the chamber 8 near the wall of the purified smoke pipe 1, a shovel plate 15 is inserted at the discharge port 16, and an embedded spring rod 10 is fixedly connected to the inner wall of the discharge port 16, and the telescopic end of the spring rod 10 in the discharge port 16 is connected to the shovel plate 15, and the elastic force of the spring rod 10 in the discharge port 16 can force the shovel plate 15 to seal the discharge port 16 to prevent the desulfurizer or activated carbon in the chamber 8 from spilling out, the bottom edge of the inner wall of the purified smoke pipe 1 is hollowed out at the position of the purification cover 4, and an electric push rod 5 is also fixedly connected to the hollow part of the purified smoke pipe 1, and a pneumatic telescopic rod 13 is also fixedly connected to the telescopic end of the electric push rod 5 on the purified smoke pipe 1, and the electric The telescopic end of the pneumatic telescopic rod 13 on the push rod 5 is used to clamp the outer wall of the shovel plate 15. When emptying the desulfurizer or activated carbon in the chamber 8, first ensure that the chamber 8 rotates with the rotation of the purification hood 4 until the discharge port 16 of the chamber 8 is aligned with the hollow at the bottom of the purification smoke pipe 1, and then the telescopic end of the pneumatic telescopic rod 13 at the hollow of the purification smoke pipe 1 is extended to clamp the outer wall of the main shovel plate 15, and then the electric push rod 5 at the hollow of the purification smoke pipe 1 contracts to drive the pneumatic telescopic rod 13 at its telescopic end to drag the shovel plate 15 to overcome the elastic force of the spring rod 10 connected to it and move, so as to achieve conduction between the discharge port 16 of the chamber 8 and the hollow of the purification smoke pipe 1, thereby realizing the desulfurizer or activated carbon in the chamber 8.

[0030] In the method of use, the desulfurizer and activated carbon are respectively placed in the storage boxes 2 in the two purification mechanisms, and the motor 3 drives the purification cover 4 to rotate until the connecting pipe 14 on each chamber 8 is aligned with the telescopic pipe 12. When the telescopic pipe 12 is aligned with the connecting pipe 14, the pneumatic telescopic rod 13 extends to push the telescopic pipe 12 into the aligned connecting pipe 14, and pushes the sealing plate 11 to overcome the elastic force of the spring rod 10 connected thereto and move until the hollow end of the telescopic pipe 12 enters the chamber 8, and the desulfurizer or activated carbon in the storage box 2 fills the chamber 8 along the feeding pipe 9 and the telescopic pipe 12, and then the telescopic pipe 12 is reset and withdrawn, and the sealing plate 11 reseals the connecting pipe 14, and so on to realize that several chambers 8 are filled with desulfurizer or activated carbon one by one, and the flue gas enters the purification smoke pipe 1 along the smoke inlet of the purification smoke pipe 1. According to the amount of flue gas, the electric push rod 5 on the support frame 6 drives the baffle 7 to move, so that the hollow part of the chamber 8 is opened, and then the flue gas is purified by two purification mechanisms in turn. Several chambers 8 are used alternately, and the purification cover 4 is rotated to realize that the chamber 8 at a specific position is aligned with the hollow part of the purification smoke pipe 1, so that the desulfurizer or activated carbon in the chamber 8 is emptied, unloaded, and replaced.

[0031] The wiring diagram of the motor 3, the electric push rod 5, and the pneumatic telescopic rod 13 in the utility model belongs to the common knowledge in the field, and its working principle is a well-known technology. The model is selected according to the actual use. Therefore, the control method and wiring arrangement of the motor 3, the electric push rod 5, and the pneumatic telescopic rod 13 are not explained in detail.

[0032] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A flue gas purification device for waste incineration power generation, comprising a flue gas purification pipe (1) for flue gas purification, characterized in that: Two groups of purification mechanisms are arranged in the purified smoke pipe (1), and the two groups of purification mechanisms are used to place desulfurizer and activated carbon respectively, and the purification mechanism includes a purification cover (4) rotatably connected in the purified smoke pipe (1), and a plurality of chambers (8) distributed in a ring array are arranged in the purification cover (4), and the cavity walls of the chambers (8) facing the pipe openings at both ends of the purified smoke pipe (1) are hollowed out, and each cavity (8) of the purification cover (4) facing the outer wall of the smoke inlet of the purified smoke pipe (1) is fixedly connected to an electric push rod (5), and the telescopic end of the electric push rod (5) is fixedly connected to a baffle (7) for closing the hollow cavity wall of the chamber (8).

2. The waste incineration power generation flue gas purification device according to claim 1 is characterized by: The outer wall of the purification cover (4) is fixedly connected to a support frame (6) at the position of the baffle (7), the electric push rod (5) is fixed on the support frame (6), and the baffle (7) is sleeved on the support frame (6).

3. The waste incineration power generation flue gas purification device according to claim 1 is characterized by: A motor (3) for driving the purification hood (4) to rotate is fixedly connected inside the purification smoke pipe (1), and the main shaft of the motor (3) is rotatably connected to the inner sides of a plurality of baffles (7).

4. The waste incineration power generation flue gas purification device according to claim 1, characterized in that: The purification mechanism also includes a storage box (2) fixedly connected to the outer wall of the purification smoke pipe (1), the bottom of the storage box (2) is connected to a feed pipe (9) extending into the purification smoke pipe (1), and one end of the feed pipe (9) is sleeved with a telescopic pipe (12) for extending into the chamber (8).

5. The waste incineration power generation flue gas purification device according to claim 4 is characterized in that: The telescopic tube (12) is aligned with the chamber (8) near the bottom of the smoke purification tube (1), and the outer wall of the conveying tube (9) is fixedly connected with a pneumatic telescopic rod (13) for pushing the telescopic tube (12) to move.

6. The waste incineration power generation flue gas purification device according to claim 5 is characterized by: A connecting pipe (14) for plugging into a telescopic pipe (12) is fixedly connected to a cavity wall of the chamber (8) on one side facing the smoke outlet of the purified smoke pipe (1); a spring rod (10) is fixedly connected to the pipe opening of the connecting pipe (14); and a sealing plate (11) for sealing the pipe opening of the connecting pipe (14) is fixedly connected to the telescopic end of the spring rod (10).

7. The waste incineration power generation flue gas purification device according to claim 1, characterized in that: The chamber (8) is provided with a discharge port (16) on the wall of the purification smoke pipe (1), a shovel plate (15) is inserted into the discharge port (16), and the inner wall of the discharge port (16) is also fixedly connected with an embedded spring rod (10), the telescopic end of the spring rod (10) in the discharge port (16) is connected to the shovel plate (15), the bottom edge of the inner wall of the purification smoke pipe (1) is hollowed out at the position of the purification cover (4), and an electric push rod (5) is also fixedly connected to the hollowed-out part of the purification smoke pipe (1), the telescopic end of the electric push rod (5) on the purification smoke pipe (1) is also fixedly connected with a pneumatic telescopic rod (13), and the telescopic end of the pneumatic telescopic rod (13) on the electric push rod (5) is used to clamp the outer wall of the shovel plate (15).

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