A high-efficiency waste incineration dry desulfurization system

Abstract

The utility model provides a kind of efficient garbage incineration dry desulfurization system, including neutralization tower, into smoke pipeline, out of smoke pipeline, neutralization pipeline, neutralizing agent bin, automatic feeding mechanism and fan, the auxiliary mixing mechanism for prolonging neutralizing agent and fly ash neutralization time is equipped on the neutralization tower, the auxiliary mixing mechanism includes mounting sleeve, several fixed baffle, rotating motor, lengthened mounting pivot, several movable baffle and several metal gauze.

Description

Technical Field

[0001] This utility model relates to the technical field of municipal solid waste incineration equipment, and in particular to a high-efficiency dry desulfurization system for waste incineration. Background Technology

[0002] Traditional dry desulfurization processes after the furnace have defects: the Ca(OH)2 injected after the semi-dry process has a short reaction time and insufficient mixing, which leads to a decrease in desulfurization efficiency. Furthermore, the unreacted desulfurizing agent is chelated and landfilled with fly ash, resulting in resource waste. Therefore, improvements are urgently needed. Utility Model Content

[0003] To address the shortcomings of the aforementioned technologies, this utility model provides a highly efficient dry desulfurization system for waste incineration, comprising a neutralization tower, an inlet flue, an outlet flue, a neutralization pipe, a neutralizing agent silo, an automatic feeding mechanism, and a blower. The inlet flue, outlet flue, and neutralization pipe are all located on the neutralization tower and communicate with its interior. The neutralizing agent silo is located at the top of the neutralization tower and connected to the outlet flue via the automatic feeding mechanism. The other end of the neutralization pipe is connected to the blower. The neutralization tower is equipped with an auxiliary mixing mechanism for extending the neutralization time between the neutralizing agent and fly ash. The system includes an installation sleeve, several fixed baffles, a rotary motor, an extended installation shaft, several movable baffles, and several metal meshes. The top of the neutralization tower has an installation port located on one side of the neutralization pipeline. The installation sleeve is detachably mounted on the installation port via a sealing mechanism. The rotary motor is mounted on the installation port. The extended installation shaft is located inside the installation sleeve, with one end connected to the rotary motor and the other end connected to several movable baffles. Each of the movable baffles has an installation groove that matches the metal meshes. The metal meshes are respectively installed in the installation grooves of the movable baffles.

[0004] By adopting the above technical solution, an auxiliary mixing mechanism is set on the neutralization tower, including an installation sleeve, several fixed baffles, a rotary motor, an extended installation shaft, several movable baffles, and several metal meshes. The rotary motor drives the extended installation shaft to rotate, which in turn drives the movable baffles to rotate. When the neutralizing agent powder is blown out from the outlet of the neutralization pipe inside the neutralization tower, part of it falls onto the fixed baffles, and part of it falls onto the metal meshes of the movable baffles and rotates slowly along with the extended installation shaft. When the flue gas inside the neutralization tower is blocked by the fixed baffles and the movable baffles, the flow rate will slow down, but the metal meshes can ensure the normal flow of the flue gas. The flue gas in the space above the fixed baffles and the movable baffles can be fully mixed with the sprayed neutralizing agent powder. At the same time, the neutralizing agent powder temporarily retained on the fixed baffles and the movable baffles can also be fully mixed with the flue gas with a slowed flow rate. This improves the desulfurization efficiency and makes full use of the neutralizing agent, reducing the waste of the neutralizing agent.

[0005] A further feature of this invention is that one end of the neutralization pipe located inside the neutralization tower is provided with a sealing plate, and several spray outlets are opened on the circumferential surface of the neutralization pipe near the sealing plate.

[0006] By adopting the above technical solution, since the neutralization pipe is equipped with a sealing plate at one end inside the neutralization tower, and the neutralization pipe has several spray outlets on its circumferential surface near the sealing plate, the neutralizing agent is sprayed out from the side spray outlets. Compared with direct vertical spraying, this can improve the coverage of the neutralizing agent inside the neutralization tower, and further make the flue gas neutralization more complete.

[0007] A further feature of this invention is that the end faces of the sealing plate and the plurality of fixed baffles are all inclined surfaces.

[0008] By adopting the above technical solution, since the end faces of the sealing plate and several fixed baffles are all inclined, the problem of neutralizing agent powder accumulating on the fixed baffles and sealing plates over several years can be avoided, reducing the frequency of maintenance.

[0009] A further feature of this invention is that each of the fixed baffles has a number of metal bristles on its bottom surface.

[0010] By adopting the above technical solution, since the bottom surface of the fixed baffles is provided with a number of metal bristles, when the movable baffles rotate to the bottom of the fixed baffles, the metal mesh can come into contact with the metal bristles and brush off some of the neutralizing agent blocking the mesh, thereby avoiding clogging of the metal mesh. Attached Figure Description

[0011] Appendix Figure 1 This is a schematic diagram of the structure of a high-efficiency dry desulfurization system for waste incineration, according to a specific embodiment of this utility model.

[0012] Appendix Figure 2 This is a partial explosion diagram of a high-efficiency dry desulfurization system for waste incineration, according to a specific embodiment of this utility model.

[0013] Appendix Figure 3 This is a partial structural diagram of the connecting mechanism in a high-efficiency dry desulfurization system for waste incineration, according to a specific embodiment of this utility model.

[0014] Appendix Figure 4 This is a partial structural diagram of the connecting mechanism in a high-efficiency dry desulfurization system for waste incineration, according to a specific embodiment of this utility model.

[0015] 1-Neutralization tower, 2-Inlet flue, 3-Outlet flue, 4-Neutralization flue, 5-Neutralizing agent bin, 6-Automatic feeding mechanism, 7-Fan, 8-Auxiliary mixing mechanism, 9-Installation sleeve, 10-Fixed baffle, 11-Rotating motor, 12-Extended mounting shaft, 13-Modible baffle, 14-Metal mesh, 15-Sealing plate, 16-Spray outlet, 17-Metal brush bristles. Detailed Implementation

[0016] like Figure 1-4 As shown, a high-efficiency dry desulfurization system for waste incineration includes a neutralization tower 1, an inlet flue duct 2, an outlet flue duct 3, a neutralization duct 4, a neutralizing agent silo 5, an automatic feeding mechanism 6, and a blower 7. The inlet flue duct, outlet flue duct, and neutralization duct are all located on the neutralization tower and communicate with its interior. The neutralizing agent silo is located at the top of the neutralization tower and connected to the outlet flue duct via the automatic feeding mechanism. The other end of the neutralization duct is connected to the blower. The neutralization tower is equipped with an auxiliary mixing mechanism 8 for extending the neutralization time between the neutralizing agent and fly ash. The auxiliary mixing mechanism includes an mounting sleeve 9 and several... The system includes a fixed baffle 10, a rotary motor 11, an extended mounting shaft 12, several movable baffles 13, and several metal meshes 14. The top of the neutralization tower has an installation port located on one side of the neutralization pipe. The installation sleeve is detachably mounted on the installation port via a sealing mechanism. The rotary motor is mounted on the installation port. The extended mounting shaft is mounted inside the installation sleeve, with one end connected to the rotary motor and the other end connected to several movable baffles. Each of the movable baffles has an installation groove that matches the metal mesh. The metal meshes are respectively installed in the installation grooves of the movable baffles.

[0017] By installing an auxiliary mixing mechanism on the neutralization tower, including an installation sleeve, several fixed baffles, a rotary motor, an extended installation shaft, several movable baffles, and several metal mesh screens, the rotary motor drives the extended installation shaft to rotate, which in turn drives the movable baffles to rotate. When the neutralizing agent powder is blown out from the outlet of the neutralization pipe located inside the neutralization tower, part of it falls onto the fixed baffles, and part falls onto the metal mesh screens of the movable baffles and rotates slowly along with the extended installation shaft. When the flue gas inside the neutralization tower is blocked by the fixed baffles and the movable baffles, the flow rate will slow down, but the metal mesh screens can ensure the normal flow of the flue gas. The flue gas in the space above the fixed baffles and the movable baffles can be fully mixed with the sprayed neutralizing agent powder. At the same time, the neutralizing agent powder temporarily retained on the fixed baffles and the movable baffles can also be fully mixed with the flue gas with a slowed flow rate. This improves the desulfurization efficiency and makes full use of the neutralizing agent, reducing the waste of the neutralizing agent.

[0018] The neutralization pipe is equipped with a sealing plate 15 at one end inside the neutralization tower, and the neutralization pipe has several spray outlets 16 on its circumferential surface near the sealing plate.

[0019] Because the neutralization pipe has a sealing plate at one end inside the neutralization tower, and several nozzles are opened on the periphery of the neutralization pipe near the sealing plate, the neutralizing agent is sprayed out from the side nozzles. Compared with direct vertical spraying, this can improve the coverage of the neutralizing agent inside the neutralization tower, and further make the flue gas neutralization more complete.

[0020] The end faces of the sealing plate and several fixed baffles are all inclined surfaces.

[0021] Since the end faces of the sealing plate and several fixed baffles are all inclined, the problem of neutralizing agent powder accumulating on the fixed baffles and sealing plates over several years can be avoided, reducing the frequency of maintenance.

[0022] Each of the fixed baffles has a number of metal bristles 17 on its bottom surface.

[0023] Since the bottom surfaces of the fixed baffles are provided with several metal bristles, when the movable baffles rotate to the bottom of the fixed baffles, the metal mesh can come into contact with the metal bristles, brushing off some of the neutralizing agent blocking the mesh, thereby preventing the metal mesh from becoming clogged.

Claims

1. A high-efficiency dry desulfurization system for waste incineration, comprising a neutralization tower, an inlet flue, an outlet flue, a neutralization pipe, a neutralizing agent silo, an automatic feeding mechanism, and a blower, wherein the inlet flue, outlet flue, and neutralization pipe are all installed on the neutralization tower and communicate with the interior of the neutralization tower, the neutralizing agent silo is located at the top of the neutralization tower and connected to the outlet flue via the automatic feeding mechanism, and the other end of the neutralization pipe is connected to the blower, characterized in that: The neutralization tower is equipped with an auxiliary mixing mechanism for extending the neutralization time between the neutralizing agent and fly ash. The auxiliary mixing mechanism includes an installation sleeve, several fixed baffles, a rotary motor, an extended installation shaft, several movable baffles, and several metal meshes. The top of the neutralization tower has an installation port on one side of the neutralization pipe. The installation sleeve is detachably mounted on the installation port through a sealing mechanism. The rotary motor is mounted on the installation port. The extended installation shaft is mounted inside the installation sleeve, with one end connected to the rotary motor and the other end connected to several movable baffles. Each of the movable baffles has an installation groove that matches the metal meshes. The metal meshes are respectively installed in the installation grooves of the movable baffles.

2. The efficient dry desulfurization system for waste incineration according to claim 1, characterized in that: The neutralization pipe has a sealing plate at one end inside the neutralization tower, and several spray outlets are opened on the periphery of the neutralization pipe near the sealing plate.

3. The efficient dry desulfurization system for waste incineration according to claim 2, characterized in that: The end faces of the sealing plate and several fixed baffles are all inclined surfaces.

4. The efficient dry desulfurization system for waste incineration according to claim 1, characterized in that: The bottom surface of each of the fixed baffles is provided with a number of metal bristles.

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