Three-bed type heat storage oxidation device

Abstract

The utility model discloses a three-bed type heat storage oxidation device which comprises a furnace body provided with three combustion heat storage chambers, the combustion heat storage chambers comprise a front combustion chamber, a rear combustion chamber and a heat storage chamber, the rear combustion chamber and the heat storage chamber are connected to the two sides of the front combustion chamber respectively, and a filtering module is arranged at the joint of the front combustion chamber and the rear combustion chamber; a heat storage module is arranged in the heat storage chamber, a purging opening is formed in the side, away from the front combustion chamber, of the heat storage chamber, and an ash discharging pipe is arranged at the bottom of the rear combustion chamber. All the rear combustion chambers are communicated, and a combustor is arranged in at least one combustion heat storage cavity; the waste gas supply pipeline is provided with three gas inlet flow dividing pipes, and the gas inlet flow dividing pipes are connected with the sides, away from the front combustion chamber, of the heat storage chambers; and the combustion exhaust pipeline is provided with three exhaust shunting pipes which are connected with one side, far away from the front combustion chamber, of the heat storage chamber. According to the utility model, the retention time of waste gas in the combustion chamber can be prolonged, the thermal oxidation decomposition efficiency is high, and dust generated by combusted waste gas can be prevented from blocking the heat storage module.

Description

TECHNICAL FIELD

[0001] The utility model relates to regenerative thermal oxidation technical field, especially a kind of three-bed regenerative thermal oxidation device. BACKGROUND

[0002] Regenerative thermal oxidation technology (Regenerative Thermal Oxidizer, for short RTO), is heated to 760 ℃ above to organic waste gas, make waste gas volatile organic matter in combustion chamber oxidation decomposition into carbon dioxide and water, to purify waste gas and recover heat generated in the process of decomposition waste gas.

[0003] Regenerative thermal oxidation device main structure is by combustion chamber, regenerative chamber and switching valve and so on Structure is composed, waste gas is combusted in furnace body, to be oxidized and decomposed into carbon dioxide and water, and the heat generated by combustion is recovered through regenerative chamber, the combustion oxidation effect of regenerative thermal oxidation device in traditional technology is not sufficient, and the purification effect of waste gas is insufficient. UTILITY MODEL CONTENT

[0004] The utility model aims at at least one of the technical problems existing in prior art is solved.For this reason, the utility model provides a kind of three-bed regenerative thermal oxidation device, combustion oxidation effect is sufficient and reliable, waste gas purification treatment effect is good, and maintenance is convenient, and service life is long.

[0005] According to the three-bed regenerative thermal oxidation device of the utility model embodiment, it includes:

[0006] Furnace body is equipped with three combustion regenerative chambers, combustion regenerative chamber includes front combustion chamber, rear combustion chamber and regenerative chamber, rear combustion chamber and regenerative chamber are connected to the two sides of front combustion chamber, and the connecting place of front combustion chamber and rear combustion chamber is equipped with filter module, and regenerative chamber is equipped with regenerative module, and the side of regenerative chamber away from front combustion chamber is equipped with purge port, and the bottom of rear combustion chamber is equipped with ash removal pipe, and ash removal valve is arranged in ash removal pipe;Each rear combustion chamber in three combustion regenerative chambers is communicated, and at least one combustion regenerative chamber is equipped with burner;

[0007] Waste gas supply pipeline is equipped with three inlet gas shunt pipes, and each inlet gas shunt pipe is connected to the side of corresponding regenerative chamber away from front combustion chamber, and inlet valve is arranged in each inlet gas shunt pipe;

[0008] Combustion exhaust pipe is equipped with three exhaust gas shunt pipes, and each exhaust gas shunt pipe is connected to the side of corresponding regenerative chamber away from front combustion chamber, and exhaust valve is arranged in each exhaust gas shunt pipe.

[0009] In the embodiment, the bottom of rear combustion chamber is funnel-shaped and narrows downward.

[0010] In the embodiment, the heat storage module comprises a honeycomb heat storage body and two rectangular saddle ring heat storage bodies, and the two rectangular saddle ring heat storage bodies are connected to opposite ends of the honeycomb heat storage body.

[0011] In the embodiment, the honeycomb heat storage body and the rectangular saddle ring heat storage body are both ceramic heat storage structures.

[0012] In the embodiment, the filter module is a metal filter or a high-temperature resistant fiber filter.

[0013] In the embodiment, the furnace wall of the furnace body is provided with a heat preservation layer.

[0014] In the embodiment, the front combustion chamber in at least one of the combustion heat storage chambers is connected with a high-temperature exhaust pipe.

[0015] In the embodiment, the rear combustion chamber in at least one of the combustion heat storage chambers is connected with an explosion venting pipe.

[0016] The embodiment of the utility model has at least the following beneficial effects:

[0017] Through the three combustion heat storage chambers and the corresponding heat storage modules, the heat storage modules can collect the heat generated during combustion and provide the effect of preheating for the subsequent waste gas combustion, can effectively reduce the temperature fluctuation of the waste gas, thereby improving the effect of waste gas purification treatment, and can effectively improve the energy utilization rate; through the structure of the front and rear combustion chambers, the effective combustion volume in the furnace body can be significantly increased, thereby effectively increasing the residence time of the waste gas during combustion in the combustion chamber, and further improving the effect of full combustion of the waste gas, the thermal oxidation decomposition efficiency of the waste gas is high, the waste gas purification treatment effect is good, the emission of harmful substances can be effectively reduced, the purification performance is good, and the device is environmentally friendly and energy-saving; in addition, through the purging effect, the main combustion and oxidation process of the waste gas can be concentrated in the rear combustion chamber, and the filter can isolate most of the dust generated during the waste gas combustion and oxidation process in the rear combustion chamber, thereby effectively avoiding the dust generated after the combustion of the waste gas from blocking the heat storage module in the heat storage chamber, the gas flowability in the combustion heat storage chamber can be effectively ensured, thereby effectively ensuring the purification treatment effect of the waste gas, the heat recovery performance of the heat storage module can be effectively ensured, the waste gas purification treatment performance of the three-bed type heat storage oxidation device is good, the service life is long, the solid dust can be settled in the ash discharge pipe of the rear combustion chamber under the action of gravity, the dust in the ash discharge pipe can be discharged in time by opening the ash discharge valve, the cleaning and maintenance operation is convenient, and the waste gas purification treatment performance of the device can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0019] Figure 1The utility model discloses a top view structure schematic drawing of three bed type heat accumulation oxidation device's embodiment;

[0020] Figure 2 The utility model discloses a front view structure schematic drawing of three bed type heat accumulation oxidation device's embodiment;

[0021] Figure 3 The utility model discloses a rear view structure schematic drawing of three bed type heat accumulation oxidation device's embodiment;

[0022] Figure 4 The utility model discloses a right view structure schematic drawing of three bed type heat accumulation oxidation device's embodiment;

[0023] Figure 5 The utility model discloses an internal structure schematic drawing of three bed type heat accumulation oxidation device's embodiment under the top view angle;

[0024] Figure 6 The utility model discloses an internal structure schematic drawing of three bed type heat accumulation oxidation device's embodiment under the front view angle;

[0025] Figure 7 The utility model discloses an internal structure schematic drawing of three bed type heat accumulation oxidation device's embodiment under the right view angle.

[0026] Reference signs:

[0027] Furnace body 100, heat preservation layer 101, combustion heat accumulation chamber 110, front combustion chamber 111, rear combustion chamber 112, heat accumulation chamber 113, filter module 120, heat accumulation module 130, honeycomb heat accumulation body 131, matrix saddle ring heat accumulation body 132, purging port 140, ash removal pipe 150, ash removal valve 151, combustor 160, high-temperature discharge pipe 170, explosion vent pipe 180;

[0028] Waste gas supply pipeline 200, intake gas shunt pipe 210, intake valve 220;

[0029] Combustion exhaust pipe 300, exhaust gas shunt pipe 310, exhaust valve 320. DETAILED DESCRIPTION

[0030] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as the limitation of the utility model.

[0031] In the description of the utility model, it needs to be understood that, if the direction description, such as up, down, left, right, front, back and other directions or positional relations indicated based on the direction or positional relation shown in the drawing, is only for the convenience of describing the utility model and simplifying the description, and is not indicative or suggestive of the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore can not be understood as a limitation on the utility model.

[0032] In the description of the utility model, if there is a description to the line cover, support is only used for distinguishing technical features for the purpose, and can not be understood as indicating or suggesting relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0033] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection should be broadly understood, and the skilled person in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0034] Regenerative Thermal Oxidizer (RTO) is to heat the organic waste gas to 760 DEG C or more, so that the volatile organic compounds in waste gas are oxidized and decomposed into carbon dioxide and water in the combustion chamber, thereby purifying the waste gas and recovering the heat generated in the decomposition process of waste gas. The main structure of the regenerative thermal oxidation device is composed of combustion chamber, heat storage chamber and switching valve structure, and the waste gas is burned in the furnace body, so as to be oxidized and decomposed into carbon dioxide and water, and the heat generated by combustion is recovered through the heat storage chamber. The combustion and oxidation effect of the regenerative thermal oxidation device in the traditional technology is insufficient, the purification effect of waste gas is insufficient, and the solid dust such as silicon dioxide powder generated in the combustion process is accumulated in the heat storage chamber, which not only affects the heat recovery effect of the heat storage chamber, but also affects the flowability of the gas, and further affects the combustion and oxidation effect of the waste gas, resulting in further decline of the purification treatment effect of the waste gas. There are three main parameters for measuring the performance of RTO, which are temperature, time and turbulence. Usually, the minimum temperature is controlled at 760 DEG C, which can meet the requirements of RTO combustion chamber, and appropriate adjustment can be made according to the actual situation.

[0035] The following refers to the drawings Figure 1 to the drawings Figure 7 The three-bed regenerative thermal oxidation device of the utility model embodiment is described, which has sufficient and reliable combustion and oxidation effect, good waste gas purification treatment effect, convenient maintenance and long service life.

[0036] Referring to Figures 1 to 7 The three-bed regenerative thermal oxidation device of the utility model embodiment is described, which has sufficient and reliable combustion and oxidation effect, good waste gas purification treatment effect, convenient maintenance and long service life.

[0037] The furnace body 100 is provided with three combustion heat storage chambers 110. For each combustion heat storage chamber 110, the combustion heat storage chamber 110 comprises a front combustion chamber 111, a rear combustion chamber 112 and a heat storage chamber 113, the rear combustion chamber 112 and the heat storage chamber 113 are respectively connected to the two sides of the front combustion chamber 111, a filter module 120 is arranged at the connection between the front combustion chamber 111 and the rear combustion chamber 112, the filter module 120 is used to separate the space of the front combustion chamber 111 and the rear combustion chamber 112 respectively, so as to filter the gas flow between the front combustion chamber 111 and the rear combustion chamber 112, the heat storage chamber 113 is provided with a heat storage module 130, and the side of the heat storage chamber 113 away from the front combustion chamber 111 is provided with a purge port 140, the purge port 140 is used to connect an external purging device, preferably, one corresponding external purging device can be connected to each purge port 140, or the purging device is connected to the three purge ports 140 through corresponding control pipelines respectively, the external purging device can be an air compression device or a fan and the like which can form a positive pressure purging effect, the bottom of the rear combustion chamber 112 is provided with a dust discharging pipe 150, the dust discharging pipe 150 is provided with a dust discharging valve 151, and the dust discharging pipe 150 is used to connect an external waste collecting device; the rear combustion chambers 112 in the three combustion heat storage chambers 110 are sequentially communicated, that is, the three rear combustion chambers 112 are communicated, the front combustion chambers 111 in the three combustion heat storage chambers 110 are independent of each other, the heat storage chambers 113 in the three combustion heat storage chambers 110 are independent of each other, at least one combustion heat storage chamber 110 is provided with a burner 160, and the burner 160 can be arranged in the front combustion chamber 111 or the rear combustion chamber 112;

[0038] The waste gas supply pipeline 200 is provided with three gas inlet branch pipes 210, each gas inlet branch pipe 210 is connected to the side of each corresponding heat storage chamber 113 away from the front combustion chamber 111, that is, the three gas inlet branch pipes 210 are connected to the sides of the three heat storage chambers 113 away from the front combustion chamber 111, and each gas inlet branch pipe 210 is provided with a gas inlet valve 220, the gas supply state of the corresponding gas inlet branch pipe 210 is controlled through the gas inlet valve 220, the waste gas supply pipeline 200 is used to connect an external organic waste collecting device, according to different application designs, the gas inlet valve 220 can be provided as a corresponding valve structure, for example, a lifting valve;

[0039] The combustion exhaust pipe 300 is provided with three exhaust branch pipes 310, each of which is connected to a corresponding heat storage chamber 113 away from the front combustion chamber 111, i.e., the three exhaust branch pipes 310 are connected to the three heat storage chambers 113 away from the front combustion chamber 111, respectively, and each of the exhaust branch pipes 310 is provided with an exhaust valve 320 for controlling the air supply state of the corresponding exhaust branch pipe 310. The combustion exhaust pipe 300 is used to connect an external exhaust chimney. According to different application designs, the exhaust valve 320 can be provided as a corresponding valve structure, such as a poppet valve.

[0040] The three combustion heat storage chambers 110 are arranged as a first combustion heat storage chamber 110, a second combustion heat storage chamber 110 and a third combustion heat storage chamber 110 along the arrangement direction, and the working process mainly includes the following three stages of circulation:

[0041] In the first stage, all other intake valves 220 and exhaust valves 320 are closed, and only the intake valve 220 corresponding to the first combustion heat storage chamber 110 is controlled to be opened, so that the heat storage chamber 113 of the first combustion heat storage chamber 110 is in communication with the exhaust gas supply pipe 200. After the exhaust gas from the exhaust gas supply pipe 200 enters the heat storage chamber 113 of the first combustion heat storage chamber 110 for preheating, the exhaust gas reaches the front combustion chamber 111 and the rear combustion chamber 112 of the first combustion heat storage chamber 110 in turn and is ignited by the burner 160. The external purging device blows the residual exhaust gas in the heat storage chamber 113 of the third combustion heat storage chamber 110 through the front combustion chamber 111 to the rear combustion chamber 112 through the purging port 140 corresponding to the third combustion heat storage chamber 110, so as to ensure that the exhaust gas is mainly concentrated in the three connected rear combustion chambers 112 for combustion. The exhaust valve 320 corresponding to the second combustion heat storage chamber 110 is controlled to be opened, and the heat storage chamber 113 of the second combustion heat storage chamber 110 is in communication with the combustion exhaust pipe 300. After the exhaust gas combustion is oxidized and decomposed, it is output from the rear combustion chamber 112 in the second combustion heat storage chamber 110 to the combustion exhaust pipe 300 through the front combustion chamber 111 and the heat storage chamber 113. When the exhaust gas is oxidized and decomposed and passes through the filter module 120 corresponding to the second combustion heat storage chamber 110, most of the dust is blocked in the rear combustion chamber 112 and settles in the ash discharge pipe 150 under the action of gravity. The dust in the ash discharge pipe 150 can be cleaned by opening the ash discharge valve 151. The heat storage module of the second combustion heat storage chamber 110 collects the heat generated by the exhaust gas combustion for preheating the exhaust gas in the second stage;

[0042] The second stage: close all other intake valves 220 and exhaust valves 320, only control the opening of the second combustion chamber 110 corresponding intake valve 220, so that the second combustion chamber 110 heat storage room 113 and exhaust gas supply pipeline 200 communication, exhaust gas from the exhaust gas supply pipeline 200 into the second combustion chamber 110 heat storage room 113 preheating, these exhaust gas in turn to the second combustion chamber 110 front chamber 111 and back chamber 112, and is ignited by the burner 160, the outside of the purge device through the first combustion chamber 110 corresponding purge port 140 will be first combustion chamber 110 heat storage room 113 in the residual exhaust gas through the front chamber 111 purge to the back chamber 112 of the first combustion chamber 110, to ensure that the exhaust gas is mainly concentrated in the three connected back chamber 112 combustion, control open third combustion chamber 110 corresponding exhaust valve 320, third combustion chamber 110 heat storage room 113 and combustion exhaust pipe 300 communication, exhaust gas combustion is oxidized and decomposed from the third combustion chamber 110 back chamber 112 through the front chamber 111 and heat storage room 113 output to the combustion exhaust pipe 300, exhaust gas is oxidized and decomposed after passing through the third combustion chamber 110 corresponding filter module 120, most of the dust is blocked in the back chamber 112, and under the action of gravity, the dust is settled in the ash discharge pipe 150, open the ash valve 151 can clean the dust in the ash discharge pipe 150, the third combustion chamber 110 heat storage module collects the heat generated by the exhaust gas combustion for the third stage of exhaust gas preheating;

[0043] The third stage: close all other intake valves 220 and exhaust valves 320, and only control the opening of the third combustion chamber 110 corresponding intake valve 220, so that the third combustion chamber 110 heat storage chamber 113 and the exhaust gas supply pipeline 200 communication, the exhaust gas from the exhaust gas supply pipeline 200 into the third combustion chamber 110 heat storage chamber 113 preheating, these exhaust gas in turn to the third combustion chamber 110 front chamber 111 and rear chamber 112, and ignited by the burner 160, the external purge device through the second combustion chamber 110 corresponding purge port 140 will be the second combustion chamber 110 heat storage chamber 113 in the residual exhaust gas through the front chamber 111 purge to the rear chamber 112, to ensure that the exhaust gas is mainly concentrated in the three connected rear chamber 112 combustion, control the opening of the first combustion chamber 110 corresponding exhaust valve 320, the first combustion chamber 110 heat storage chamber 113 and combustion exhaust pipe 300 communication, exhaust gas combustion is oxidized and decomposed from the first combustion chamber 110 in the rear chamber 112 through the front chamber 111 and heat storage chamber 113 output to the combustion exhaust pipe 300, after the exhaust gas is oxidized and decomposed through the first combustion chamber 110 corresponding filter module 120, most of the dust is blocked in the rear chamber 112, and under the action of gravity, the dust is settled in the ash discharge pipe 150, opening the ash valve 151 can clean the dust in the ash discharge pipe 150, the first combustion chamber 110 heat storage module collects the heat generated by the exhaust gas combustion for the next cycle in the first stage of exhaust gas preheating.

[0044] Among them, according to the actual application requirement, the working time of each stage in the first to third stage can be set to several minutes, for example, each stage works for 2 minutes.

[0045] When standby maintenance, through the external purge device on the three purge port 140 purge, can be the dust remaining in each filter module 120 close to the corresponding rear chamber 112 one side of the ash discharge pipe 150, so as to ensure the performance of the filter module 120.

[0046] By means of the three combustion heat storage chambers 110 and the corresponding heat storage modules 130, the heat storage modules 130 can collect the heat generated during combustion in each stage and provide the effect of preheating for the exhaust gas combustion in the subsequent stage, effectively reducing the temperature fluctuation of the exhaust gas, thereby improving the effect of exhaust gas purification treatment, and effectively improving the energy utilization rate; by means of the structure of the front and rear combustion chambers 112, the effective combustion volume in the furnace body 100 can be significantly increased, thereby effectively increasing the residence time of the exhaust gas combustion in the combustion chamber in the furnace body 100, and further improving the effect of exhaust gas combustion. Compared with the industry standard combustion time of not less than 0.75s, the combustion time of the three-bed heat storage oxidation device is doubled, the combustion residence time is not less than 1.5s, the thermal oxidation decomposition efficiency of the exhaust gas is high, the exhaust gas purification treatment effect is good, the harmful substance emission can be effectively reduced, the purification performance is good, and the device is environmentally friendly and energy-saving. In addition, by means of the purging effect, the main combustion and oxidation process of the exhaust gas can be concentrated in the rear combustion chamber 112, and the filter module 120 can isolate most of the dust generated in the exhaust gas combustion and oxidation process in the rear combustion chamber 112, thereby effectively avoiding the dust generated after combustion from blocking the heat storage modules 130 in the heat storage chamber 113, effectively ensuring the gas flowability in the combustion heat storage chamber 110, thereby effectively ensuring the purification treatment effect of the exhaust gas, and effectively ensuring the heat recovery performance of the heat storage modules 130. The three-bed heat storage oxidation device has good exhaust gas purification treatment performance and long service life. The solid dust can be settled in the ash discharge pipe 150 of the rear combustion chamber 112 under the action of gravity. By opening the ash discharge valve 151, the dust in the ash discharge pipe 150 can be discharged in time, the cleaning and maintenance operation is convenient, the probability of secondary pollution caused by dust can be reduced, and the exhaust gas purification treatment performance of the device can be ensured.

[0047] It can be understood that for each combustion heat storage chamber 110, the bottom of the rear combustion chamber 112 is funnel-shaped downwardly narrowing, and the ash discharge pipe 150 is connected to the bottom end of the funnel-shaped structure at the bottom of the rear combustion chamber 112, which can effectively improve the effect of settling and collecting solid dust into the ash discharge pipe 150.

[0048] Specifically, the funnel-shaped structure at the bottom of the rear combustion chamber 112 is a prism, the upper base of the prism is connected to the ash discharge pipe 150, and the lower base of the prism is connected to the internal space of the rear combustion chamber 112.

[0049] It can be understood that for each combustion heat storage chamber 110, the heat storage module 130 includes a honeycomb heat storage body 131 and a rectangular saddle ring heat storage body 132, and the rectangular saddle ring heat storage body 132 is provided with two and connected to the opposite ends of the honeycomb heat storage body 131. By means of two kinds of heat storage bodies with different structures, the heat storage collection effect can be effectively improved, thereby effectively improving the energy utilization rate.

[0050] Specifically, along the flow direction of the exhaust gas, the two rectangular saddle ring regenerators 132 are respectively arranged at opposite ends of the honeycomb regenerator 131, which can effectively improve the stability of the structure of the regenerative module 130.

[0051] It can be understood that the honeycomb regenerator 131 and the rectangular saddle ring regenerator 132 are both ceramic regenerative structures, and the thermal efficiency can be effectively improved by making the regenerative structure by ceramic. The high-temperature gas generated by thermal oxidation flows through the ceramic regenerative structure in the regenerative chamber 113, which heats up and stores heat. These heat can be used to preheat the subsequent entering organic waste gas, thereby effectively reducing and saving the fuel consumption for waste gas heating, reducing the operating cost of the three-bed regenerative oxidation device. When the exhaust gas concentration is relatively high, such as the exhaust gas concentration ≥ 3 g / Nm3, the three-bed regenerative oxidation device only needs fuel for preheating at start-up, and no auxiliary fuel is needed during operation, further saving the fuel consumption required for heating and reducing the operating cost.

[0052] It can be understood that the filter module 120 is a metal filter or a high-temperature resistant fiber filter. The metal filter is a general term for precision filters, and the main materials are stainless steel mesh, sintered mesh, sintered felt, and high-efficiency filter material processed from honeycomb core. The high-temperature resistant fiber filter is a kind of high-temperature resistant filter, which is mainly used to filter tar, soot, dust and other particles.

[0053] It can be understood that the furnace wall of the furnace body 100 is provided with a heat preservation layer 101, which can effectively prevent the heat in the furnace body 100 from being unnecessarily lost, thereby effectively improving the energy utilization rate. The heat preservation layer 101 can be an aluminum silicate insulation cotton layer.

[0054] When the exhaust gas concentration is higher than a certain concentration, while meeting the self-sustaining combustion and environmental protection standards, it can also output waste heat to the outside, such as through steam, hot air, hot water and other forms for utilization, realizing economic benefits.

[0055] It can be understood that the front combustion chamber 111 in at least one combustion regenerative chamber 110 is connected with a high-temperature discharge pipe 170, which can effectively collect the excess heat generated in the combustion oxidation process, thereby further improving the utilization rate of energy. The high-temperature discharge pipe 170 can be connected to the top of the front combustion chamber 111.

[0056] It can be understood that the rear combustion chamber 112 in at least one combustion regenerative chamber 110 is connected with a blast pipe 180, which can release the pressure in the furnace body 100 in an emergency, thereby effectively reducing the risk of explosion and having good safety performance. Specifically, the blast pipe 180 is provided with a blast valve for controlling the opening and closing of the blast pipe 180.

[0057] It can be understood that the front combustion chamber 111 of the at least one combustion heat storage chamber 110 can also be provided with an inspection door for facilitating maintenance and repair of the device when stopped.

[0058] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A three-bed regenerative oxidizer characterized by, The utility model relates to a three -dimensional regenerative furnace, including: Furnace body (100) is equipped with three combustion regenerative chamber (110), combustion regenerative chamber (110) includes front combustion chamber (111), rear combustion chamber (112) and regenerative chamber (113), rear combustion chamber (112) and regenerative chamber (113) are connected to the both sides of front combustion chamber (111) respectively, the junction of front combustion chamber (111) and rear combustion chamber (112) is equipped with filter module (120), regenerative chamber (113) is equipped with regenerative module (130), the side of regenerative chamber (113) away from front combustion chamber (111) is equipped with purging port (140), the bottom of rear combustion chamber (112) is equipped with ash removal pipe (150), and ash removal valve (151) is equipped in ash removal pipe (150);Each rear combustion chamber (112) in three combustion regenerative chamber (110) is communicated, and at least one combustion regenerative chamber (110) is equipped with burner (160); Waste gas supply pipeline (200) is equipped with three intake branch pipes (210), and each intake branch pipe (210) is connected to the side of corresponding regenerative chamber (113) away from front combustion chamber (111) respectively, and each intake branch pipe (210) is equipped with intake valve (220); Combustion exhaust pipeline (300) is equipped with three exhaust branch pipes (310), and each exhaust branch pipe (310) is connected to the side of corresponding regenerative chamber (113) away from front combustion chamber (111) respectively, and each exhaust branch pipe (310) is equipped with exhaust valve (320).

2. A three-bed regenerative thermal oxidizer as defined in claim 1, wherein, The bottom of rear combustion chamber (112) is funnel-shaped and narrows downward.

3. The three-bed regenerative thermal oxidizer of claim 1, wherein, The regenerative module (130) includes honeycomb regenerator (131) and rectangular saddle ring regenerator (132), the rectangular saddle ring regenerator (132) is provided with two and is connected to the opposite ends of the honeycomb regenerator (131).

4. A three-bed regenerative thermal oxidizer as defined in claim 3, wherein, The honeycomb regenerator (131) and the rectangular saddle ring regenerator (132) are both ceramic regenerative structures.

5. The three-bed regenerative thermal oxidizer of claim 1, wherein, The filter module (120) is a metal filter or a high-temperature resistant fiber filter.

6. A three-bed regenerative thermal oxidizer according to claim 1, wherein The furnace wall of the furnace body (100) is provided with a heat preservation layer (101).

7. The three-bed regenerative thermal oxidizer of claim 1, wherein, The front combustion chamber (111) in at least one combustion regenerative chamber (110) is connected with a high-temperature exhaust pipe (170).

8. A three-bed regenerative thermal oxidizer according to claim 1, wherein, The rear combustion chamber (112) in at least one combustion regenerative chamber (110) is connected with a blast pipe (180).

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