Back-flushing cleaning incinerator

Abstract

The present application provides a kind of back flushing cleaning incinerator, including incineration bin, feeding assembly, emptying pipeline, back flushing pipeline and ash falling control component, ash falling control component includes installation in the bottom of incineration bin ash removal pipeline, installation in the flap of ash removal pipeline, installation in the rotating disc of ash removal pipeline outside, control sleeve plate fixed on rotating disc, corresponding control sleeve plate installation positioning pin plate and installation between ash removal pipeline and control sleeve plate tension spring, flap rotatably installed in ash removal pipeline, flap can seal in ash removal pipeline, rotating disc is fixedly connected to flap, positioning pin plate is provided with the positioning pin hole of control sleeve plate, the both ends of tension spring are connected to control sleeve plate and positioning pin plate, the rotation angle of control sleeve plate and flap can be controlled using tension spring and positioning pin plate, ensure that the inner cavity of incineration bin is fully sealed, avoid the dust under ash removal pipeline being blown up by high pressure gas and escaping.

Description

Technical Field

[0001] This invention relates to the technical field of a backflushing incinerator, and more particularly to a backflushing incinerator. Background Technology

[0002] In the incineration system, during each centralized incineration cycle, the smoke generated needs to be discharged into the atmosphere through exhaust pipes and other equipment. Floating impurities in the smoke accumulate on filters and other structures at the exhaust pipe inlet. When combustion stops, the temperature inside the chamber drops, and the accumulated impurities gradually condense. After repeated condensation over a long period, blockage occurs at the exhaust pipe inlet, affecting the normal venting process. Therefore, the incinerator's structural design incorporates an exhaust gas pipeline connected to the exhaust pipe. When combustion ceases inside the chamber, a backflushing operation is simultaneously initiated on the exhaust pipe. During the backflushing operation, the exhaust gas used for backflushing is discharged from the ash discharge pipe at the bottom of the chamber, agitating the accumulated inorganic salts and other ash at the bottom. The ash is released from its storage container and escapes with the exhaust gas. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that in the prior art, the waste gas incineration system causes the accumulated ash to detach from the storage device during backflushing and cleaning, resulting in the phenomenon of ash escaping.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a backflushing incinerator, comprising an incineration chamber, a feeding assembly connected to the incineration chamber, an exhaust pipe installed on the incineration chamber, a backflushing pipe connecting the feeding assembly and the exhaust pipe, and an ash control assembly installed at the bottom of the incineration chamber. The ash control assembly includes an ash discharge pipe installed at the bottom of the incineration chamber, a flap installed inside the ash discharge pipe, a rotating disk installed outside the ash discharge pipe, a control sleeve fixed on the rotating disk, a positioning pin plate corresponding to the control sleeve plate installed on the ash discharge pipe, and a tension spring installed between the ash discharge pipe and the control sleeve plate. The flap is rotatably installed inside the ash discharge pipe and can seal the inside of the ash discharge pipe. The rotating disk is fixedly connected to the flap. The positioning pin plate is provided with a positioning pin hole for positioning the control sleeve plate. The two ends of the tension spring are respectively connected to the control sleeve plate and the positioning pin plate.

[0005] Furthermore, one end of the flap is rotatably inserted into the inner wall of the ash discharge pipe, and the other end of the flap extends out after penetrating the side wall of the ash discharge pipe. The rotating disk is fixed to the end of the flap that extends out of the ash discharge pipe.

[0006] Furthermore, the rotating disk is fixed to the shaft end of the flap in a splined configuration.

[0007] Furthermore, a stop is provided on the positioning pin plate, the stop being provided corresponding to the control sleeve plate, and the stop limiting the maximum stroke of the control sleeve plate.

[0008] Furthermore, the control sleeve has an oblong plate-like structure, with one end of the control sleeve fixed to the rotating disk and the other end of the control sleeve extending outside the rotating disk.

[0009] Furthermore, the feeding assembly includes a feeding main pipe and feeding branch pipes connected from the feeding main pipe to each of the incineration chambers, and the two ends of the backflushing pipe are respectively connected to the feeding branch pipes and the venting pipes.

[0010] Furthermore, a feeding valve is installed on the feeding branch pipe, an emptying valve is installed on the emptying pipe, and a backflush valve is installed on the backflush pipe.

[0011] Furthermore, after the control sleeve plate and the positioning pin hole are aligned, the angle of the control sleeve plate relative to the positioning pin plate is fixed by inserting a pin into the positioning pin hole.

[0012] The beneficial effects of this invention are that when the incinerator is backflushed, the feeding assembly is connected to the exhaust pipe through the backflushing pipe, and the backflushed gas is discharged into the incineration chamber through the exhaust pipe. The gas pressure in the incineration chamber continues to increase, and the gas pressure in the incineration chamber presses against the flap in the ash discharge pipe until the gas pressure is greater than the tension of the tension spring on the control sleeve. Under the action of the gas pressure, a gap is generated between the flap and the ash discharge pipe, and the backflushed gas in the incineration chamber leaks out from the ash discharge pipe until the flap resets and re-seals the ash discharge pipe. During non-pressure relief, the flap seals the ash discharge pipe, which can prevent excessive gas pressure from acting on the ash accumulation area. Moreover, during the pressure relief period, the gas flow rate decreases after it flows out, and when it is discharged to the ash accumulation area, it can no longer cause the phenomenon of ash escaping. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a plan view of the incinerator of the present invention; Figure 2 yes Figure 1 A plan view of a single incineration chamber; Figure 3 This is a perspective view of the dust control component in this invention; Figure 4 yes Figure 3 A 3D view of the dust control components shown. Figure 5 yes Figure 3 Side view; Figure 6 It is along Figure 5Sectional view of AA; Figure 7 yes Figure 6 A magnified view of a section at point B in the middle; In the diagram: incineration chamber 10, feeding assembly 20, venting pipe 30, backflush pipe 40, ash control component 50, main feeding pipe 210, feeding branch pipe 220, feeding valve 230, venting valve 310, backflush valve 410, ash discharge pipe 510, flap 520, rotating disc 530, control sleeve 540, positioning pin plate 550, tension spring 560, positioning pin hole 551, stop block 552. Detailed Implementation

[0015] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" 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 invention and simplifying the description, and are not intended to 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 invention.

[0016] like Figures 1 to 7 As shown, this embodiment provides a backflushing cleaning incinerator, including an incineration chamber 10, a feeding assembly 20 connected to the incineration chamber 10, an exhaust pipe 30 installed on the incineration chamber 10, a backflushing pipe 40 connecting the feeding assembly 20 and the exhaust pipe 30, and an ash control component 50 disposed at the bottom of the incineration chamber 10.

[0017] like Figure 1 As shown, there are multiple incineration chambers 10. The incineration chambers 10 use high-temperature incineration to treat the waste gas. The waste gas and combustion air are pretreated outside the chamber, that is, the two are mixed in proportion to form the combustible waste. The waste is discharged into the incineration chamber 10 through the feeding assembly 20. The temperature inside the incineration chamber 10 is maintained at a level where the waste can burn. The combusted waste produces exhaust gas and inorganic salt ash that falls to the bottom. The gas is discharged through the exhaust pipe 30, and the inorganic salt ash is discharged through the bottom of the incineration chamber 10.

[0018] like Figure 1 and Figure 2As shown, the feeding assembly 20 includes equipment connected to the mixed waste gas. The feeding assembly 20 includes a main feeding pipe 210 and feeding branch pipes 220 connecting the main feeding pipe 210 to each incineration chamber 10. The port of the main feeding pipe 210 is connected to the waste pretreatment equipment. The two ends of the feeding branch pipes 220 are respectively connected to the main feeding pipe 210 and the incineration chamber 10. The mixed waste gas feedstock is input into the incineration chamber 10 through the main feeding pipe 210 and the feeding branch pipes 220. A feeding valve 230 is also installed on the feeding branch pipe 220. The feeding valve 230 is a solenoid valve used to control the opening and closing of the feeding branch pipe 220. When the feeding valve 230 is open, the pipeline from the feeding branch pipe 220 to the incineration chamber 10 is unobstructed; when the feeding valve 230 is closed, the pipeline from the feeding branch pipe 220 to the incineration chamber 10 is closed.

[0019] Both the vent pipe 30 and the feeding branch pipe 220 are located at the top of the incineration chamber 10. The gas generated by the combustion of waste in the incineration chamber 10 is discharged through the vent pipe 30. The vent pipe 30 is equipped with a vent valve 310. When the vent valve 310 is opened, the inner pipe of the vent pipe 30 is opened. When the vent valve 310 is closed, the inner pipe of the vent pipe 30 is closed.

[0020] A backflush pipe 40 is installed corresponding to the incineration chamber 10, with its two ends connected to the feeding branch pipe 220 and the exhaust pipe 30, respectively. The connection point between the backflush pipe 30 and the feeding branch pipe 220 is between the feeding valve 230 and the feeding main pipe 210, while the connection point between the backflush pipe 40 and the exhaust pipe 30 is between the exhaust valve 310 and the incineration chamber 10. A backflush valve 410 is installed on the backflush pipe 40, which controls the opening and closing of the internal pipes of the backflush pipe 40. The exhaust gas input from the feeding main pipe 210 can be reversed and input into the incineration chamber 10 through the backflush pipe 40 and the exhaust pipe 30 to backflush the exhaust pipe 30 and ensure its unobstructed flow.

[0021] like Figures 1 to 7 As shown, the ash discharge control assembly 50 includes an ash discharge pipe 510 installed at the bottom of the incineration chamber 10, a flap 520 installed inside the ash discharge pipe 510, a rotating disk 530 installed outside the ash discharge pipe 510, a control sleeve plate 540 fixed on the rotating disk 530, a positioning pin plate 550 installed corresponding to the control sleeve plate 530, and a tension spring 560 installed between the ash discharge pipe 510 and the control sleeve plate 530.

[0022] like Figures 5 to 7As shown, the ash discharge pipe 510 is located at the bottom of the incineration chamber 10. One end of the flap 520 is rotatably inserted into the inner wall of the ash discharge pipe 510, and the other end of the flap 520 extends out after passing through the side wall of the ash discharge pipe 510. The flap 520 can rotate inside the ash discharge pipe 510. When the flap 520 rotates to coincide with the diameter direction of the ash discharge pipe 510, the flap 520 seals the inner tube of the ash discharge pipe 510. A rotating disk 530 is fixed to the end of the flap 520 that extends out of the ash discharge pipe 510. Preferably, the rotating disk 530 is fixed to the shaft end of the flap 520 by a spline fit. The rotation of the flap 520 inside the ash discharge pipe 510 can be controlled by the rotating disk 530 from the outside of the ash discharge pipe 510, thereby adjusting the opening and closing of the ash discharge pipe 510. The control sleeve 540 is fixed to the rotating disk 530. The control sleeve 540 is roughly waist-shaped. One end of the control sleeve 540 is fixed to the rotating disk 530, and the other end extends out of the rotating disk 530. The rotation of the rotating disk 530 can be controlled by the control sleeve 540. Adding the control sleeve 540 can increase the torque of the rotating disk 530 and improve the ease of control of the rotating disk 530. The positioning pin plate 550 is set between the rotating disk 530 and the ash discharge pipe 510. The positioning pin plate 550 has a positioning pin hole 551. When the flip plate 520 is flipped to the angle where the ash discharge pipe 510 is open, the end of the control sleeve 540 corresponds to the positioning pin hole 551. The angle of the control sleeve 540 relative to the positioning pin plate 550 can be fixed by inserting a pin into the positioning pin hole 551. One end of the tension spring 560 is connected to the positioning pin plate 550, and the other end is connected to the control sleeve plate 540. The tension spring 560 exerts a traction force on the control sleeve plate 540, causing the control sleeve plate 540 to rotate in the direction of closing the ash discharge pipe 510. That is, when the pin is pulled out from the positioning pin hole 551, it loses its restraint on the control sleeve plate 540 and the rotating disk 530, and under the traction of the tension spring 560, the flap 520 rotates in the opposite direction. The positioning pin plate 550 is provided with a stop 552, which is provided corresponding to the control sleeve plate 540. The stop 552 is used to limit the maximum stroke of the control sleeve plate 540 to prevent the control sleeve plate 540 from over-twisting under the traction of the tension spring 560 and opening the internal cavity of the ash discharge pipe 510.

[0023] During the backflushing process, the flap 520 closes the ash discharge pipe 510, and the backflushing gas is discharged into the incineration chamber 10 from the vent pipe 30. Since the incineration chamber 10 is in a closed state, the backflushing gas is continuously input, and the gas pressure in the incineration chamber 10 continues to increase. Under the impact of the gas pressure, the flap 520 overcomes the tension of the tension spring 560 and rotates, creating a gap in the ash discharge pipe 510. The high-pressure gas in the incineration chamber 10 leaks, and the gas pressure in the incineration chamber 10 drops until the flap 520 re-seals the ash discharge pipe 510 to prevent the waste gas used for backflushing from igniting the ash generated by combustion.

[0024] When the above-mentioned combustion system is in use, the waste gas to be burned is input into the feed branch pipe 220 through the feed main pipe 210. The temperature in the combustion chamber 10 is raised to the degree of combustion. The waste gas enters the corresponding combustion chamber 10 through the feed branch pipe 220. In the combustion chamber 10, the waste gas is heated and burned. The generated gas is discharged from the exhaust pipe 30. The generated soot settles in the combustion chamber 10 to the vicinity of the ash discharge pipe 510. The settled soot is discharged through the ash discharge pipe 510. When the gas discharged from the vent pipe 30 contains a high amount of soot, the feeding valve 230 and the vent valve 310 are closed, and the backflushing valve 410 is opened. Backflushing is then performed on the incineration chamber 10 through the feeding main pipe 210 and the backflushing pipe 40. Before backflushing, the pin needs to be pulled out of the positioning pin hole 551. Under the traction of the tension spring 560, the control sleeve 540 drives the rotating disk 530 to rotate until the flap 520 rotates synchronously until the ash discharge pipe 510 is closed. After the control sleeve 540 rotates, it is restricted by the stop block 552, thus limiting the rotation stroke of the flap 520. When too much gas is backflushed into the incineration chamber 10, and the gas pressure inside the incineration chamber 10 exceeds the tension of the tension spring 560 on the flap 520, a gap is created between the flap 520 and the pipe wall of the ash discharge pipe 50 until the gas leaks through the gap, reducing the gas pressure inside the incineration chamber 10 until the gas pressure is less than the tension, and the flap 520 retracts. The new ash discharge pipe 50 is sealed. During this process, the airflow that blows away the ash is small, which can prevent the ash from escaping from the collection device.

[0025] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A reverse-flushing cleaning incinerator, characterized in that: The incineration chamber includes a combustion chamber (10), a feeding assembly (20) connected to the combustion chamber (10), an exhaust pipe (30) installed on the combustion chamber (10), a backflushing pipe (40) connecting the feeding assembly (20) and the exhaust pipe (30), and an ash control assembly (50) installed at the bottom of the combustion chamber (10). The ash control assembly (50) includes an ash discharge pipe (510) installed at the bottom of the combustion chamber (10), a flap (520) installed inside the ash discharge pipe (510), a rotating disc (530) installed outside the ash discharge pipe (510), and a control sleeve (540) fixed on the rotating disc (530). The control sleeve (530) is mounted on the ash discharge pipe (510) with a positioning pin plate (550) and a tension spring (560) between the ash discharge pipe (510) and the control sleeve (530). The flap (520) is rotatably mounted inside the ash discharge pipe (510) and can seal the inside of the ash discharge pipe (510). The rotating disk (530) is fixedly connected to the flap (520). The positioning pin plate (550) is provided with a positioning pin hole (551) for positioning the control sleeve (530). The two ends of the tension spring (560) are respectively connected to the control sleeve (540) and the positioning pin plate (550).

2. The incinerator with reverse-flushing cleaning according to claim 1, characterized in that: One end of the flap (520) is rotatably inserted into the inner wall of the ash discharge pipe (510), and the other end of the flap (520) extends out after passing through the side wall of the ash discharge pipe (510). The rotating disk (530) is fixed to the end of the flap (520) that extends out of the ash discharge pipe (510).

3. The incinerator with reverse-flushing cleaning according to claim 2, characterized in that: The rotating disk (530) is fixed to the shaft end of the flap (520) by a spline engagement.

4. The incinerator with reverse-flushing cleaning according to claim 1, characterized in that: The positioning pin plate (550) is provided with a stop (552), which is provided corresponding to the control sleeve plate (540) and limits the maximum stroke of the control sleeve plate (540).

5. The incinerator with reverse-flushing cleaning according to claim 1, characterized in that: The control sleeve (540) has a waist-shaped plate structure. One end of the control sleeve (540) is fixed on the rotating disk (530), and the other end of the control sleeve (540) extends out of the rotating disk (530).

6. The incinerator for backflushing cleaning according to claim 1, characterized in that: The feeding assembly (20) includes a feeding main pipe (210) and feeding branch pipes (220) connected from the feeding main pipe (210) to each of the incineration chambers (10). The two ends of the backflushing pipe (40) are respectively connected to the feeding branch pipe (220) and the venting pipe (30).

7. The incinerator with reverse-flushing cleaning according to claim 6, characterized in that: A feeding valve (230) is installed on the feeding branch pipe (220), an emptying valve (310) is installed on the emptying pipe (30), and a backflush valve (410) is installed on the backflush pipe (40).

8. The incinerator with reverse-flushing cleaning according to claim 1, characterized in that: After the control sleeve (540) and the positioning pin hole (551) are aligned, the angle of the control sleeve (540) relative to the positioning pin plate (550) is fixed by inserting a pin into the positioning pin hole (551).

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