Waste incineration high-temperature flue gas recycling device

Abstract

The utility model provides a waste incineration high-temperature flue gas recycling device which comprises an incineration assembly and a recycling assembly, the incineration assembly is connected with the recycling assembly through flue gas pipe fittings, the flue gas pipe fittings comprise a first flue gas pipe and a second flue gas pipe, the incineration assembly comprises an incinerator, the first flue gas pipe is installed on the surface of the upper side of the incinerator, and the second flue gas pipe is installed on the surface of the lower side of the incinerator. A furnace door and a connecting pipe are installed on the surface of the outer side of the incinerator, the recycling assembly comprises an installation frame and a dust removal piece, and the dust removal piece is installed on the surface of the upper side of the installation frame. High-temperature flue gas exhausted from the incinerator returns to the incinerator through the recycling pipe and the connecting pipe and can be used for preheating air entering the incinerator, sufficient oxygen is needed in the waste incineration process to guarantee complete combustion, the temperature of the air is low before the air enters the incinerator, and the air can be preheated through heat of the high-temperature flue gas.

Description

Technical Field

[0001] This utility model belongs to the field of flue gas reuse equipment, and specifically relates to a high-temperature flue gas reuse device for waste incineration. Background Technology

[0002] Waste incineration is a technology that processes waste by burning it at high temperatures. The high-temperature flue gas produced by waste incineration contains a large amount of heat energy. By reusing this flue gas, the heat can be used for preheating or for energy recovery through heat exchangers. However, current waste incineration methods have some drawbacks. First, without a flue gas recovery system, energy waste is severe because the high-temperature flue gas is directly emitted, and a large amount of its heat energy remains unutilized. This is due to the lack of a corresponding heat recovery mechanism. Conventional solutions to these energy waste issues include optimizing the combustion process, such as precisely controlling the air volume and combustion temperature. However, this requires sophisticated equipment and technology and is costly. Therefore, a new structure is needed to address these technical problems. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a high-temperature flue gas recycling device for waste incineration, and to solve the problems mentioned in the background technology.

[0004] This utility model is achieved through the following technical solution: a high-temperature flue gas recycling device for waste incineration, comprising: an incineration component and a recycling component. The incineration component is connected to the recycling component via flue gas pipes. The flue gas pipes include: flue gas pipe one and flue gas pipe two. The incineration component includes an incinerator. Flue gas pipe one is installed on the upper surface of the incinerator. A furnace door and a connecting pipe are installed on the outer surface of the incinerator. The recycling component includes: an installation frame and a dust removal component. A dust removal component is installed on the upper surface of the installation frame. A wind box one and a wind box two are respectively installed on the upper surface and inside of the installation frame. A fan is installed on the upper surface of wind box one. A recycling pipe is installed on the front surface of wind box two. The end of the recycling pipe away from wind box two is connected to the incinerator via a connecting pipe.

[0005] In a preferred embodiment, the lower surface of the incinerator is equipped with a discharge pipe and four support legs, the upper surface of the incinerator is equipped with a pressure gauge and a flue gas pipe, the outer surface of the incinerator is equipped with a connecting pipe and a furnace door that is hinged and sealed by a locking buckle, and the end of the flue gas pipe away from the incinerator is connected to a second flue gas pipe through a valve.

[0006] In a preferred embodiment, the end of the second flue gas pipe away from the first flue gas pipe is connected to the air inlet of the blower, and the air outlet of the blower is located inside the first air box. The mounting frame includes a base frame and a vertical frame. The vertical frame is integrally formed on the upper surface of the base frame. In use, the high-temperature flue gas discharged from the incinerator returns to the incinerator through the reuse pipe and the connecting pipe. It can be used to preheat the air entering the incinerator. The waste incineration process requires sufficient oxygen to ensure complete combustion. The air is at a low temperature before entering the incinerator, and the heat from the high-temperature flue gas can preheat it.

[0007] In a preferred embodiment, a first air box is installed on the side of the upright frame away from the base frame, and a dust collector is installed on the upper surface of the base frame. A first air duct is installed at the air inlet of the dust collector, and the end of the first air duct away from the dust collector is connected to the first air box. A second air duct is installed at the air outlet of the dust collector, and the end of the second air duct away from the dust collector is connected to the second air box. During use, the flue gas generated by waste incineration contains a large number of dust particles. If this dust enters the recycling device directly without treatment, the dust will gradually accumulate inside the components' pipes. By removing the dust in advance through the dust collector, the normal operation of the heat exchange equipment can be ensured, and stable thermal performance can be maintained.

[0008] In a preferred embodiment, the second air box is installed inside the upright frame via a base frame. A return pipe is installed on the right side surface of the second air box. A one-way air valve is provided at the connection between the return pipe and the second air box. The structure of the return pipe matches that of the connecting pipe. The end of the return pipe away from the second air box is connected to the connecting pipe via a sealing flange.

[0009] In a preferred embodiment, two air outlet pipes are symmetrically installed on the lower edge of the front surface of the second air box, and a one-way air valve is provided at the connection between the air outlet pipe and the second air box.

[0010] After adopting the above technical solution, the beneficial effects of this utility model are as follows: By setting up a recycling component, the incineration component is connected to the recycling component through a flue gas pipe. The recycling component includes: an installation frame and a dust removal component. The upper surface and the interior of the installation frame are respectively equipped with a first air box and a second air box. A fan is installed on the upper surface of the first air box, and a recycling pipe is installed on the front surface of the second air box. The end of the recycling pipe away from the second air box is connected to the incinerator through a connecting pipe. In use, the high-temperature flue gas discharged from the incinerator returns to the incinerator through the recycling pipe and the connecting pipe, which can be used to preheat the air entering the incinerator. The waste incineration process requires sufficient oxygen to ensure complete combustion. The air is at a low temperature before entering the incinerator, and the heat of the high-temperature flue gas can preheat it.

[0011] By installing dust removal components, the upper surface of the mounting frame is equipped with dust removal components. During use, the flue gas produced by waste incineration contains a large number of dust particles. If these dust particles enter the recycling device directly without treatment, they will gradually accumulate inside the component's pipes. By removing the dust in advance through the dust removal components, the normal operation of the equipment can be guaranteed and stable thermal performance can be maintained. Attached Figure Description

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0013] Figure 1 This is a schematic diagram of the overall structure of a high-temperature flue gas recycling device for waste incineration according to the present invention.

[0014] Figure 2 This is a schematic diagram of the recycling component of a high-temperature flue gas recycling device for waste incineration according to this utility model.

[0015] In the diagram, 100 is the incinerator, 110 is the connecting pipe, and 120 is the flue gas pipe.

[0016] 200-Reuse component, 210-Base frame, 211-Upright frame, 220-Air box one, 230-Fan, 240-Flue gas duct two, 250-Dust removal component, 251-Air duct one, 252-Air duct two, 260-Air box two, 261-Reuse pipe, 262-Outlet pipe. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1 to 2This utility model provides a technical solution: a high-temperature flue gas recycling device for waste incineration, comprising: an incineration assembly and a recycling assembly 200. The incineration assembly is connected to the recycling assembly 200 via flue gas pipes, which include: a first flue gas pipe 120 and a second flue gas pipe 240. The incineration assembly includes an incinerator 100. The first flue gas pipe 120 is installed on the upper surface of the incinerator 100, and a furnace door and a connecting pipe 110 are installed on the outer surface of the incinerator 100. The reuse component 200 includes: a mounting frame and a dust removal component 250. The dust removal component 250 is mounted on the upper surface of the mounting frame. A first air box 220 and a second air box 260 are mounted on the upper surface and inside the mounting frame, respectively. A fan 230 is mounted on the upper surface of the first air box 220. A reuse pipe 261 is mounted on the front surface of the second air box 260. The end of the reuse pipe 261 away from the second air box 260 is connected to the incinerator 100 through a connecting pipe 110.

[0019] Please see Figures 1 to 2 As the first embodiment of this utility model: a discharge pipe and four support legs are installed on the lower surface of the incinerator 100, a pressure gauge and flue gas pipe 120 are installed on the upper surface of the incinerator 100, a connecting pipe 110 and a furnace door are installed on the outer surface of the incinerator 100 and sealed by a lock, and the end of the flue gas pipe 120 away from the incinerator 100 is connected to the second flue gas pipe 240 through a valve;

[0020] When using the incinerator, first open the furnace door on the outer surface of the incinerator 100 and put the waste to be incinerated into the incinerator 100 for incineration (the incineration steps and the type of energy used for incineration need to be selected and used selectively according to the actual situation, and will not be elaborated here). During incineration, the flue gas generated will float and gather at the top inside the incinerator 100. At this time, the user opens the valve connected to the flue gas pipe to discharge the flue gas into the flue gas pipe for recycling. After all operations are completed, the user opens the discharge pipe on the lower surface of the incinerator 100 to discharge the incinerated slag, thus completing the incineration operation.

[0021] Please see Figures 1 to 2 As a second embodiment of the present utility model: the end of the second flue pipe 240 away from the first flue pipe 120 is connected to the air inlet of the fan 230, the air outlet of the fan 230 is set inside the air box 220, and the mounting frame includes: a base frame 210 and a support frame 211, with the support frame 211 integrally formed on the upper surface of the base frame 210.

[0022] A first air box 220 is installed on the side surface of the upright frame 211 away from the base frame 210. A dust collector 250 is installed on the upper surface of the base frame 210. A first air duct 251 is installed at the air inlet of the dust collector 250. The end of the first air duct 251 away from the dust collector 250 is connected to the first air box 220. A second air duct 252 is installed at the air outlet of the dust collector 250. The end of the second air duct 252 away from the dust collector 250 is connected to the second air box 260.

[0023] The second air box 260 is installed inside the upright frame 211 via the base frame 210. A return pipe 261 is installed on the right side surface of the second air box 260. A one-way air valve is provided at the connection between the return pipe 261 and the second air box 260. The structure of the return pipe 261 matches that of the connecting pipe 110. The end of the return pipe 261 away from the second air box 260 is connected to the connecting pipe 110 through a sealing flange.

[0024] Two air outlet pipes 262 are symmetrically installed on the lower edge of the front surface of the second air box 260. A one-way air valve is provided at the connection between the air outlet pipe 262 and the second air box 260.

[0025] During operation, when flue gas enters the air box 220 through flue gas pipe 120 and flue gas pipe 240, the fan 230 on the upper surface of the air box 220 is activated, helping to discharge the flue gas inside the flue pipes into the air box 220. The flue gas then enters the dust collector 250 through air pipe 251, where it undergoes dust removal (the dust collector 250 is a cyclone dust collector; its specific structure and dust removal principle are detailed below). (This is existing technology and will not be elaborated here). At this time, the flue gas after dust removal will be discharged into the air box 260 through the second air duct 252. At this time, the valve at the connection between the front surface of the air box 260 and the outlet pipe 262 is in the closed state, and the valve at the connection between the air box 260 and the return pipe 261 is in the open state. At this time, the flue gas after dust removal inside the air box 260 will enter the incinerator 100 through the return pipe 261 and the connecting pipe 110, thereby achieving the desired effect on the incinerator 100. For the purpose of recycling, users can also reverse the above steps by opening the valve at the connection of the exhaust pipe 262 and closing the valve at the connection of the reuse pipe 261, so that the exhaust pipe 262 discharges the flue gas into other heat exchange equipment (such as shell and tube heat exchangers, plate heat exchangers, etc.) for additional flue gas heat energy recovery and utilization. Since the high-temperature flue gas discharged from the incinerator 100 returns to the incinerator 100 through the reuse pipe 261 and the connecting pipe 110, it can be used to preheat the air entering the incinerator 100. The waste incineration process requires sufficient oxygen to ensure complete combustion. The air is at a low temperature before entering the incinerator 100, and the heat of the high-temperature flue gas can preheat it. In addition, the flue gas produced by waste incineration contains a large number of dust particles. If these dust particles enter the recycling device directly without treatment, they will gradually accumulate inside the pipes of the components. By removing the dust in advance through the dust removal component 250, the normal operation of the equipment can be guaranteed and stable thermal performance can be maintained.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waste incineration high-temperature flue gas recycling device, comprising: The incineration assembly and the recycling assembly are characterized in that the incineration assembly is connected to the recycling assembly through a flue gas pipe, the flue gas pipe including: flue gas pipe one (120) and flue gas pipe two (240), and the incineration assembly including an incinerator (100). The upper surface of the incinerator (100) is equipped with a flue gas pipe (120), and the outer surface of the incinerator (100) is equipped with a furnace door and a connecting pipe (110). The recycling component includes: an installation frame and a dust removal component (250). The upper surface of the installation frame is equipped with the dust removal component (250). The upper surface and the interior of the mounting frame are respectively equipped with a first air box (220) and a second air box (260). A fan (230) is installed on the upper surface of the first air box (220), and a reuse pipe (261) is installed on the front surface of the second air box (260). The end of the reuse pipe (261) away from the second air box (260) is connected to the incinerator (100) through a connecting pipe (110).

2. The waste incineration high-temperature flue gas recycling device as described in claim 1, characterized in that: The lower surface of the incinerator (100) is equipped with a discharge pipe and four support legs. The upper surface of the incinerator (100) is equipped with a pressure gauge and flue gas pipe one (120). The outer surface of the incinerator (100) is equipped with a connecting pipe (110) and a furnace door that is hinged and sealed by a latch. The end of the flue gas pipe one (120) away from the incinerator (100) is connected to the flue gas pipe two (240) through a valve.

3. The waste incineration high-temperature flue gas recycling device as described in claim 2, characterized in that: The end of the second flue pipe (240) away from the first flue pipe (120) is connected to the air inlet of the fan (230). The air outlet of the fan (230) is located inside the first air box (220). The mounting frame includes a base frame (210) and a vertical frame (211). The vertical frame (211) is integrally formed on the upper surface of the base frame (210).

4. The waste incineration high-temperature flue gas recycling device as described in claim 3, characterized in that: A first air box (220) is installed on the side surface of the upright frame (211) away from the base frame (210). A dust removal component (250) is installed on the upper surface of the base frame (210). A first air duct (251) is installed at the air inlet of the dust removal component (250). The end of the first air duct (251) away from the dust removal component (250) is connected to the first air box (220). A second air duct (252) is installed at the air outlet of the dust removal component (250). The end of the second air duct (252) away from the dust removal component (250) is connected to the second air box (260).

5. The waste incineration high-temperature flue gas recycling device as described in claim 4, characterized in that: The second air box (260) is installed inside the upright frame (211) via the base frame (210). A return pipe (261) is installed on the right side surface of the second air box (260). A one-way air valve is provided at the connection between the return pipe (261) and the second air box (260). The structure of the return pipe (261) matches that of the connecting pipe (110). The end of the return pipe (261) away from the second air box (260) is connected to the connecting pipe (110) via a sealing flange.

6. The waste incineration high-temperature flue gas recycling device as described in claim 5, characterized in that: Two air outlet pipes (262) are symmetrically installed on the lower edge of the front surface of the second air box (260), and a one-way air valve is provided at the connection between the air outlet pipe (262) and the second air box (260).

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