A waste incineration flue gas preheating device

Abstract

The utility model relates to the field of garbage incineration flue gas preheating, more specifically to a kind of garbage incineration flue gas preheating device.The utility model aims to provide a kind of garbage incineration flue gas preheating device, and beneficial effect is in garbage incineration flue gas preheating process, the flue gas that after garbage incineration flows back to incinerator is preliminarily screened and filtered, to reduce the impurity contained in the flue gas that flows back to furnace body.The utility model aims to realize by the following technical scheme:a kind of garbage incineration flue gas preheating device, including base frame and flow pipeline, the middle part of base frame is fixedly connected with incinerator, the top furnace mouth of incinerator is fixed and communicated at the upper side of flow pipeline, the bottom of flow pipeline is fixed and communicated at the bottom of incinerator, the lower side of flow pipeline is slidably connected with annular frame, the middle part of annular frame is fixedly connected with sieve plate, the surface of flow pipeline is wrapped with heat preservation layer.

Description

Technical Field

[0001] This utility model relates to the field of waste incineration flue gas preheating, and more specifically to a waste incineration flue gas preheating device. Background Technology

[0002] Waste incineration is a common and effective treatment method in the waste management process. However, waste incineration generates a large amount of high-temperature flue gas, which is usually discharged directly or after simple treatment. This not only wastes a significant amount of heat but also increases the difficulty and cost of subsequent treatment. Furthermore, waste incinerators require preheating before incineration to ensure efficiency and effectiveness. However, existing waste incineration flue gas preheating devices are not suitable for pre-screening the flue gas returning to the incinerator after incineration during the preheating process, thereby reducing the amount of impurities in the flue gas returning to the furnace. Therefore, this application is proposed to solve the above-mentioned technical problems. Utility Model Content

[0003] The purpose of this utility model is to provide a waste incineration flue gas preheating device. The beneficial effect is that during the waste incineration flue gas preheating process, the flue gas flowing back into the incinerator after waste incineration is pre-filtered, thereby reducing the amount of impurities contained in the flue gas flowing back into the furnace.

[0004] The purpose of this utility model is achieved through the following technical solution: a waste incineration flue gas preheating device, including a base frame and a flow pipe, an incinerator is fixedly connected to the middle of the base frame, the upper side of the flow pipe is fixed and connected to the top furnace opening of the incinerator, the bottom of the flow pipe is fixed and connected to the bottom of the incinerator, an annular frame is slidably connected to the lower side of the flow pipe, a sieve plate is fixedly connected to the middle of the annular frame, and the surface of the flow pipe is covered with a heat insulation layer.

[0005] A fastening cover is fixed and connected to the top of the incinerator, and a baffle is inserted into the middle of the fastening cover.

[0006] A sliding frame is fixedly connected to the rear side of the base frame, and a sliding seat is slidably connected to the sliding frame. The left side of the sliding seat is fixedly connected to the ring frame.

[0007] An arc-shaped blade is fixedly connected to each of the four corners on both sides of the ring frame.

[0008] Each curved blade is positioned off-center towards the outer edge. Attached Figure Description

[0009] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0010] Figure 1 This is a partial structural diagram of the base frame of this utility model;

[0011] Figure 2 This is a partial structural schematic diagram of the sliding frame of this utility model;

[0012] Figure 3 This is a partial structural schematic diagram of the circulation channel of this utility model;

[0013] Figure 4 This is a partial structural schematic diagram of the sliding seat of this utility model;

[0014] Figure 5 This is an enlarged structural schematic diagram of the arc-shaped frame of this utility model;

[0015] Figure 6 This is a partial structural schematic diagram of the snap-fit ​​cover of this utility model;

[0016] Figure 7 This is a partial structural schematic diagram of the baffle of this utility model;

[0017] Figure 8 and Figure 9 These are all schematic diagrams of the overall structure of this utility model.

[0018] In the figure: base frame 101; incinerator 102; concave frame 103; vertical rod 104; cam 105; sliding frame 106; spring 107; flow pipe 201; sliding seat 301; arc frame 302; ring frame 303; sieve plate 304; arc blade 305; fastening cover 401; baffle plate 402. Detailed Implementation

[0019] A waste incineration flue gas preheating device includes a base frame 101 and a flow pipe 201. An incinerator 102 is fixedly connected to the middle of the base frame 101. The upper side of the flow pipe 201 is fixed and connected to the top furnace opening of the incinerator 102. The bottom of the flow pipe 201 is fixed and connected to the bottom of the incinerator 102. An annular frame 303 is slidably connected to the lower side of the flow pipe 201. A screen plate 304 is fixedly connected to the middle of the annular frame 303. The surface of the flow pipe 201 is covered with a heat insulation layer.

[0020] This section is based on Figure 1-5 and Figure 8 , 9The working process described is as follows: During the preheating process of waste incineration flue gas, in order to facilitate the preliminary screening of the flue gas flowing back into the incinerator after waste incineration, thereby reducing the amount of impurities contained in the flue gas flowing back into the furnace, the waste is incinerated in the incinerator 102, causing the generated high-temperature flue gas to flow upward and exit from the furnace opening at the top of the incinerator 102. However, before this, the top opening of the incinerator 102 is blocked, so that the generated high-temperature flue gas flows into the circulation pipe 201 from the upper side, and then flows into the incinerator 102 through the bottom opening of the circulation pipe 201 to preheat the furnace body, thereby making full use of the heat of the high-temperature flue gas to preheat the incinerator 102. When the high-temperature flue gas passes through the bottom horizontal position of the circulation pipe 201... When the flue gas passes through the sieve plate 304 located in the middle of the annular frame 303, the particulate impurities are filtered out by the sieve plate 304, preventing the particulate impurities mixed in the flue gas from flowing back into the furnace body. This facilitates the preliminary filtration of the flue gas flowing back into the incinerator after waste incineration, thereby reducing the amount of impurities contained in the flue gas flowing back into the furnace body. At the bottom horizontal position of the flow pipe 201, a through hole is opened in the vertical direction. The upper and lower sides of the annular frame 303 are slidably connected to the inside of the flow pipe 201 by the two through holes. A strip baffle extends from the upper and lower sides of the annular frame 303 to the left and right to block the through hole below the flow pipe 201 and prevent the flue gas from flowing out. The insulation layer wrapped on the flow pipe 201 is made of rock wool insulation material.

[0021] A fastening cover 401 is fixed and connected to the top opening of the incinerator 102, and a baffle 402 is inserted into the middle of the fastening cover 401.

[0022] This section is based on Figure 1-5 and Figure 8 , 9 The working process described is as follows: When sealing the top opening of the incinerator 102, the bottom of the fastening cover 401 is fixed to the top opening of the incinerator 102 with bolts. When the flue gas is discharged, the baffle 402 is pulled out and the flue gas is discharged through the pipe at the top of the fastening cover 401. When it is necessary to allow high-temperature flue gas to flow into the interior of the incinerator 102, the baffle 402 is reinserted into its original position to seal the connection between the fastening cover 401 and the top pipe.

[0023] A sliding frame 106 is fixedly connected to the rear side of the base frame 101. A sliding seat 301 is slidably connected to the sliding frame 106. The left side of the sliding seat 301 is fixedly connected to the annular frame 303. An arc-shaped blade 305 is fixedly connected to each of the four corners on both sides of the annular frame 303. Each arc-shaped blade 305 is offset outward. The outer surface of the annular frame 303 is in sliding contact with the inner wall of the flow pipe 201.

[0024] This section is based on Figure 1-5 and Figure 8 , 9 The working process described is as follows: When the flue gas passes through the sieve plate 304 in the middle of the annular frame 303, impurities will inevitably adhere to the surface of the annular frame 303 inside the flow pipe 201 on both sides. Therefore, an arc-shaped blade 305 is fixedly connected to each of the four corners on both sides of the annular frame 303. The outer wall of each arc-shaped blade 305 coincides with the strip baffle on the annular frame 303, so that the arc-shaped blade 305 can move with the annular frame 303. When the annular frame 303 moves, the arc-shaped blades 305 on both sides, which are set to be outwardly angled, scrape the inner surface of the flow pipe 201, reducing the degree of adhesion of impurities on the inner surface of the flow pipe 201 and preventing subsequent flue gas from flowing unimpeded.

[0025] A spring 107 is fitted onto the front and rear sides of the top of the sliding frame 106, and the two ends of the two springs 107 are fixedly connected to the front and rear sides of the left side of the sliding seat 301 and the front and rear sides of the top of the sliding frame 106, respectively. Each spring 107 is a compression spring. An arc-shaped frame 302 is fixedly connected to the right side of the sliding seat 301. A concave frame 103 is fixedly connected to the rear side of the base frame 101. A vertical rod 104 is rotatably connected to the front side of the concave frame 103. A cam 105 is fixedly connected to the middle of the vertical rod 104, and the edge of the cam 105 contacts the right arc-shaped surface of the arc-shaped frame 302.

[0026] This section is based on Figure 1-5 and Figure 8 , 9 The working process described is as follows: In order for the annular frame 303 to drive the multiple arc-shaped blades 305 on both sides to move laterally repeatedly, thereby accelerating the scraping speed of impurities attached to the inner surface of the flow pipe 201, the output shaft of a motor is fixedly connected to the top of the vertical rod 104 by a coupling. The motor is fixedly mounted on the concave frame 103 by bolts. The drive motor causes the vertical rod 104 to rotate, which causes the cam 105 located in the middle of the vertical rod 104 to rotate. The shape of the cam 105 pushes the arc-shaped frame 302 that contacts its edge, thereby synchronously pushing the arc... The sliding seat 301 on the left side of the frame 302 and the annular frame 303 in the middle of the left side of the sliding seat 301 move laterally. When the sliding seat 301 is pushed, the spring 107 on the sliding frame 106 is squeezed simultaneously, and the two springs 107 push the sliding seat 301 back by elastic force. This indirectly keeps the arc surface of the arc frame 302 in contact with the cam 105, so that the annular frame 303 can drive the multiple arc blades 305 on both sides to move laterally repeatedly, which speeds up the scraping speed of impurities attached to the inner surface of the flow pipe 201. The structure is simple and convenient to use.

Claims

1. A waste incineration flue gas preheating device, comprising a base frame (101) and a flow pipe (201), characterized in that: The base frame (101) is fixedly connected to the incinerator (102) in the middle. The upper side of the flow pipe (201) is fixed and connected to the top furnace opening of the incinerator (102). The bottom of the flow pipe (201) is fixed and connected to the bottom of the incinerator (102). The lower side of the flow pipe (201) is slidably connected to the ring frame (303). The middle of the ring frame (303) is fixedly connected to the sieve plate (304). The surface of the flow pipe (201) is covered with a heat insulation layer.

2. The apparatus according to claim 1, characterized in that: A fastening cover (401) is fixed and connected to the top opening of the incinerator (102), and a baffle (402) is inserted into the middle of the fastening cover (401).

3. The apparatus according to claim 1, characterized in that: A sliding frame (106) is fixedly connected to the rear side of the base frame (101), and a sliding seat (301) is slidably connected to the sliding frame (106). The left side of the sliding seat (301) is fixedly connected to the ring frame (303).

4. The apparatus according to claim 3, characterized in that: An arc-shaped blade (305) is fixedly connected to each of the four corners on both sides of the ring frame (303).

5. The apparatus according to claim 4, characterized in that: Each curved blade (305) is positioned off-center towards the outer edge.

6. The apparatus according to claim 5, characterized in that: The outer surface of the ring frame (303) slides in contact with the inner wall of the flow pipe (201).

7. The apparatus according to claim 3, characterized in that: A spring (107) is fitted on the front and rear sides of the top of the sliding frame (106). The two ends of the two springs (107) are fixedly connected to the front and rear sides of the left side of the sliding seat (301) and the front and rear sides of the top of the sliding frame (106), respectively.

8. The apparatus according to claim 7, characterized in that: Each spring (107) is a compression spring.

9. The apparatus according to claim 3, characterized in that: An arc-shaped frame (302) is fixedly connected to the right side of the sliding seat (301).

10. The apparatus according to claim 1, characterized in that: A concave frame (103) is fixedly connected to the rear side of the base frame (101), and a vertical rod (104) is rotatably connected to the front side of the concave frame (103). A cam (105) is fixedly connected to the middle of the vertical rod (104), and the edge of the cam (105) contacts the right arc surface of the arc frame (302).

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