Feeding device for household garbage incineration

Abstract

The utility model relates to the technical field of waste incineration, in particular to a feeding device for household waste incineration, which comprises a smoke exhaust channel, a fixed pipe fitting is arranged above the smoke exhaust channel, and two diversion branch pipes are mounted between the bottom of the fixed pipe fitting and the top of the smoke exhaust channel in a penetrating manner. An air cannon is installed at the top end of the fixing pipe fitting through a screw, and the air outlet end of the air cannon extends into the fixing pipe fitting. According to the scheme, the air cannon is connected to the smoke exhaust pipeline, high-pressure air flow generated by the air cannon is conveyed into the smoke exhaust pipeline through the fixed pipe fitting and the two flow guide branch pipes, the high-pressure air flow can blow fly ash attached to the inner wall of the smoke exhaust pipeline, the fly ash flies in the pipeline after being stressed, and the fly ash flows in the smoke exhaust pipeline along with the high-pressure air flow; fly ash in the smoke exhaust pipeline can be conveniently conveyed to the external environment, and cleaning operation of the smoke exhaust pipeline is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of waste incineration technology, and in particular to a feeding device for municipal solid waste incineration. Background Technology

[0002] During the incineration of municipal solid waste, a large amount of fly ash is produced in the flue gas. As the fly ash flows through the exhaust duct, some of it adheres to the inner wall of the duct. As the working time increases, the fly ash inside the duct will absorb other fly ash, resulting in the inner wall of the duct being covered with a large amount of fly ash. As the thickness of the fly ash accumulation in the duct increases, the space for circulation in the duct gradually decreases, reducing the efficiency of flue gas exhaust. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a feeding device for municipal solid waste incineration.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a feeding device for municipal solid waste incineration, including a flue gas channel, a fixed pipe fitting above the flue gas channel, two guide branch pipes installed through the bottom of the fixed pipe fitting and the top of the flue gas channel, an air cannon installed at the top of the fixed pipe fitting by screws, the air outlet of the air cannon extending into the interior of the fixed pipe fitting, and a shielding mechanism provided at one end of each of the two guide branch pipes located in the flue gas channel.

[0005] Preferably, the shielding mechanism includes a first fixing block, one end of which is mounted on the outside of the guide branch pipe by a screw. A concave part is elastically connected below the first fixing block. A fixing shaft is mounted inside the concave part by a screw. Two torsion springs and a third fixing block are movably sleeved on the surface of the fixing shaft. The two ends of the two torsion springs are symmetrically arranged on both sides of the third fixing block. The two ends of the torsion springs are mounted on the surfaces of the third fixing block and the concave part by screws. A baffle is mounted on the surface of the third fixing block by screws. The top of the baffle contacts the end of the guide branch pipe.

[0006] Preferably, a rubber sealing ring is bonded to the top of the baffle, and the top of the rubber sealing ring contacts the bottom of the guide branch pipe.

[0007] Preferably, a fixing rod is installed through one end of the first fixing block, a stop is installed at the top of the fixing rod by a screw, a compression spring is movably sleeved on the surface of the fixing rod, the two ends of the compression spring are respectively installed at the bottom of the stop and the top of the first fixing block by screws, a second fixing block is installed at the bottom of the fixing rod by a screw, and one end of the second fixing block is installed on the side of the concave part by a screw.

[0008] Preferably, the two diversion branches are inclined and symmetrically arranged.

[0009] Preferably, a sealing rubber gasket is adhered to the top of the fixed pipe fitting, and the outer surface of the air cannon is in contact with the surface of the sealing rubber gasket.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] This solution connects an air cannon to the exhaust duct. The high-pressure airflow generated by the air cannon is delivered to the exhaust duct through a fixed pipe and two guide branches. The high-pressure airflow blows away the fly ash adhering to the inner wall of the exhaust duct. The fly ash is then lifted by the pressure and floats inside the duct. It also flows with the high-pressure airflow, making it easier to transport the fly ash inside the exhaust duct to the external environment and facilitating the cleaning of the exhaust duct. Attached Figure Description

[0012] Figure 1 This is an isometric view of a feeding device for municipal solid waste incineration according to the present invention;

[0013] Figure 2 This is a cross-sectional view of a feeding device for municipal solid waste incineration according to the present invention;

[0014] Figure 3 This is a schematic diagram of the connection structure between the baffle and the first fixing block of a feeding device for municipal solid waste incineration according to the present invention;

[0015] Figure 4 This is a schematic diagram of the connection structure between the concave part and the third fixing block of a feeding device for municipal solid waste incineration according to the present invention.

[0016] In the diagram: 1. Air cannon; 2. Fixed pipe; 3. Guide branch pipe; 4. Smoke exhaust channel; 5. Baffle; 6. Rubber sealing ring; 7. First fixing block; 8. Stop block; 9. Compression spring; 10. Fixing rod; 11. Second fixing block; 12. Concave part; 13. Third fixing block; 14. Torsion spring. Detailed Implementation

[0017] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0018] like Figure 1-4The feeding device shown includes a flue gas duct 4, a fixed pipe 2 above the flue gas duct 4, and two guide pipes 3 running through the bottom of the fixed pipe 2 and the top of the flue gas duct 4. An air cannon 1 is screwed onto the top of the fixed pipe 2, with the outlet of the air cannon 1 extending into the interior of the fixed pipe 2. Each of the two guide pipes 3 has a shielding mechanism at one end in the flue gas duct 4. The shielding mechanism includes a first fixing block 7, one end of which is screwed onto the outside of the guide pipe 3. A concave part 12 is elastically connected below the first fixing block 7. A fixed shaft is screwed onto the interior of the concave part 12. Two torsion springs 14 and a third fixing block 13 are movably sleeved on the surface of the fixed shaft. The two ends of the two torsion springs 14 are symmetrically arranged on the third fixing block 13. On both sides, the two ends of the torsion spring 14 are respectively installed on the surface of the third fixing block 13 and the concave part 12 by screws. The surface of the third fixing block 13 is fitted with a baffle 5 by screws. The top of the baffle 5 contacts the end of the guide branch pipe 3. After the baffle 5 receives the action of the high-pressure airflow, the baffle 5 is forced to drive the third fixing block 13 to move in an arc on the surface of the fixed shaft. At the same time, the third fixing block 13 drives the torsion spring 14 to rotate synchronously, so that the torsion spring 14 stores energy. The baffle 5 is forced to separate from the guide branch pipe 3, so that the high-pressure airflow can be sprayed out from the guide branch pipe 3 into the smoke exhaust channel 4. After cleaning is completed, the air cannon 1 stops working. The torsion spring 14 drives the third fixing block 13 to reset under the influence of no external force. The third fixing block 13 drives the baffle 5 to reset, so that the baffle 5 drives the rubber sealing ring 6 to press against the end of the guide branch pipe 3.

[0019] A rubber sealing ring 6 is bonded to the top of the baffle 5. The top of the rubber sealing ring 6 contacts the bottom of the diversion branch pipe 3. When cleaning is not required, the rubber sealing ring 6 improves the sealing performance of the connection between the baffle 5 and the diversion branch pipe 3, preventing fly ash from flowing into the diversion branch pipe 3 and the fixed pipe 2 from the gap between the baffle 5 and the diversion branch pipe 3 during the smoke exhaust process, and improving the stability of fly ash flow in the smoke exhaust channel 4.

[0020] A fixing rod 10 is installed through one end of the first fixing block 7. A stop block 8 is installed at the top of the fixing rod 10 by screws. A compression spring 9 is movably sleeved on the surface of the fixing rod 10. The two ends of the compression spring 9 are respectively installed at the bottom of the stop block 8 and the top of the first fixing block 7 by screws. A second fixing block 11 is installed at the bottom of the fixing rod 10 by screws. One end of the second fixing block 11 is installed on the side of the concave part 12 by screws. When the high-pressure airflow applies pressure to the baffle 5, the baffle 5 drives the second fixing block 11 to move downward through the concave part 12. The second fixing block 11 drives the fixing rod 10 to move on the first fixing block 7. The first fixing block 7 drives the stop block 8 to move downward synchronously. The stop block 8 applies external force to the compression spring 9, so that the baffle 5 can move downward and then make arc motion after being subjected to force.

[0021] The two guide branches 3 are inclined and symmetrically arranged, which facilitates the high-pressure airflow to enter the smoke exhaust channel 4 from two directions through the two guide branches 3, and the high-pressure airflow performs the dust removal operation from two directions in the smoke exhaust channel 4.

[0022] A sealing rubber gasket is bonded to the top of the fixed pipe fitting 2. The outer surface of the air cannon 1 is in contact with the surface of the sealing rubber gasket. The setting of the sealing rubber gasket improves the sealing performance when the air cannon 1 and the fixed pipe fitting 2 are connected.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A feeding device for municipal solid waste incineration, comprising a flue gas exhaust channel (4), characterized in that, A fixed pipe fitting (2) is provided above the smoke exhaust channel (4). Two guide branch pipes (3) are installed through the bottom of the fixed pipe fitting (2) and the top of the smoke exhaust channel (4). An air cannon (1) is installed at the top of the fixed pipe fitting (2) by screws. The air outlet of the air cannon (1) extends into the interior of the fixed pipe fitting (2). A shielding mechanism is provided at one end of each of the two guide branch pipes (3) in the smoke exhaust channel (4).

2. The feeding device for municipal solid waste incineration according to claim 1, characterized in that, The shielding mechanism includes a first fixing block (7), one end of which is installed on the outside of the guide branch pipe (3) by screws. A concave part (12) is elastically connected below the first fixing block (7). A fixing shaft is installed inside the concave part (12) by screws. Two torsion springs (14) and a third fixing block (13) are movably sleeved on the surface of the fixing shaft. The two ends of the two torsion springs (14) are symmetrically arranged on both sides of the third fixing block (13). The two ends of the torsion springs (14) are installed on the surface of the third fixing block (13) and the concave part (12) by screws. A baffle (5) is installed on the surface of the third fixing block (13) by screws. The top of the baffle (5) contacts the end of the guide branch pipe (3).

3. A feeding device for municipal solid waste incineration according to claim 2, characterized in that, A rubber sealing ring (6) is bonded to the top of the baffle (5), and the top of the rubber sealing ring (6) is in contact with the bottom of the guide branch pipe (3).

4. A feeding device for municipal solid waste incineration according to claim 2, characterized in that, A fixing rod (10) is installed through one end of the first fixing block (7). A stop block (8) is installed at the top of the fixing rod (10) by screws. A compression spring (9) is movably sleeved on the surface of the fixing rod (10). The two ends of the compression spring (9) are respectively installed at the bottom of the stop block (8) and the top of the first fixing block (7) by screws. A second fixing block (11) is installed at the bottom of the fixing rod (10) by screws. One end of the second fixing block (11) is installed on the side of the concave part (12) by screws.

5. A feeding device for municipal solid waste incineration according to claim 1, characterized in that, The two diversion branches (3) are inclined and symmetrically arranged.

6. A feeding device for municipal solid waste incineration according to claim 1, characterized in that, A sealing rubber gasket is bonded to the top of the fixed pipe (2), and the outer surface of the air cannon (1) is in contact with the surface of the sealing rubber gasket.

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