Heat accumulating type high-temperature oxidation furnace

Abstract

The invention relates to the technical field of waste gas treatment, and discloses a heat accumulating type high-temperature oxidation furnace which is characterized in that VOCs gas is input from a preheating fan, passes through a preheating pipe, a bending part and a heat conducting sheet and is arranged in an isolation frame; when high-temperature oxidation is carried out in the furnace body, the temperature of the first ceramic heat storage module, the temperature of the second ceramic heat storage module and the temperature of the third ceramic heat storage module rise, the isolation frame makes contact with the first ceramic heat storage module, the second ceramic heat storage module and the third ceramic heat storage module which are heated, and heat is conducted into bending parts of the heat conducting fins and the preheating pipes from the isolation frame; the VOCs gas in the preheating pipe is preheated, the preheated VOCs gas is input into the gas inlet main pipe, heat energy is fully utilized, the use energy consumption of the heat storage type high-temperature oxidation furnace is reduced, meanwhile, the preheating fan and the gas inlet fan convey the VOCs gas at the same time, and the high-temperature oxidation efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment, in particular to a regenerative high-temperature oxidation furnace. Background Art

[0002] The production of industries such as petroleum, chemical, plastic, rubber, pharmaceutical, printing, furniture, textile printing and dyeing, coating, paint, semiconductor manufacturing, and synthetic materials will produce medium-to-high concentration and large air volume organic waste gas, which often requires the use of a regenerative thermal oxidation furnace for waste gas treatment. The regenerative thermal oxidation furnace is a high-efficiency organic waste gas treatment equipment. Compared with traditional catalytic combustion and direct-fired thermal oxidation furnaces, the regenerative thermal oxidation furnace has the characteristics of high thermal efficiency (≥95%), low operating cost, and the ability to treat large air volume and low-concentration waste gas. When the concentration is slightly higher, secondary waste heat recovery can be performed, which greatly reduces production and operation costs.

[0003] As disclosed in the Chinese invention patent application with publication number CN115751333A, a heat storage type high temperature oxidation furnace is provided. The heat storage type high temperature oxidation furnace is provided with a guide structure above the middle part of the inner part of the outer wall body, and external air ducts are respectively installed on both sides and below the guide structure, so that most of the gas can flow into the guide structure in a direction, and then be discharged directly to the corresponding heat storage ceramic body through the corresponding external air duct through the directional distribution of the guide structure to the area where the corresponding heat storage ceramic body is located for discharge. At the same time, since the upper end of the guide structure is spaced apart from the inner surface of the outer wall body, it is ensured that the auxiliary gas is discharged from the third heat storage type in addition to the air intake and outlet for auxiliary combustion. In this way, it can not only ensure that the organic waste gas can be fully burned in the guide structure, but also ensure that the post-combustion gas is discharged from the corresponding external air duct in a direction, so that the heat storage ceramic body in the next stage of the circulation process can efficiently store heat, ensure the effective preheating of the organic gas next time, and then ensure the effective oxidation and decomposition of the subsequent organic gas, so as to improve the treatment effect of the organic gas. However, a regenerative high-temperature oxidation furnace with such a structure cannot effectively cool down the furnace when the temperature inside is too high to ensure operation safety, and cannot fully utilize the heat energy inside the furnace, resulting in high energy consumption. Summary of the invention

[0004] In view of the problem that the existing regenerative high temperature oxidation furnace consumes a lot of energy, the purpose of the present invention is to provide a regenerative high temperature oxidation furnace which can effectively reduce energy consumption to overcome the problems existing in the prior art.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is: A regenerative high-temperature oxidation furnace comprises a base, an exhaust pipe, a preheating component, an air intake backflush component, an air outlet component and a cooling component; The upper end of the base is fixedly connected to a temperature insulation seat, the upper end of the temperature insulation seat is fixedly connected to a furnace body, a high-temperature oxidation chamber is arranged in the upper part of the furnace body, two isolation frames are fixedly connected to the bottom end of the furnace body, and a first ceramic heat storage module, a second ceramic heat storage module and a third ceramic heat storage module are arranged in the bottom end of the furnace body; An exhaust pipe is fixedly connected to the upper end of the base, and the exhaust pipe is arranged to communicate with the furnace body; A preheating assembly is provided at the lower end of the furnace body, and the preheating assembly is configured to be compatible with the isolation frame and is installed based on the isolation frame, so as to form heat exchange with the ceramic heat storage module in the furnace body; An air intake backflush assembly is fixedly connected to the upper end of the base, and the air intake backflush assembly is connected and coordinated with the furnace body and the preheating assembly; The lower end of the furnace body is fixedly connected with a gas outlet component, and the gas outlet component is connected and matched with the furnace body; The cooling component is arranged on the base and is configured to communicate with the furnace body and the exhaust pipe, and is used to introduce the cooled clean gas from the exhaust pipe to cool the inner cavity of the furnace body.

[0006] Preferably, the preheating assembly includes a preheating fan, a first air inlet pipe, a preheating tube, a bent portion and a heat conductive sheet. The input end of the preheating fan is fixedly connected to the first air inlet pipe, the output end of the preheating fan is fixedly connected to the preheating tube, two bent portions are arranged in the middle of the preheating tube, the outer side of the bent portion is welded to a heat conductive sheet, and the heat conductive sheet is fixedly installed inside the isolation frame.

[0007] Through the above technical scheme, a preheating component is set up, VOCs gas is input from the preheating fan, passes through the preheating pipe, and the bending part and the heat conducting plate are arranged inside the isolation frame. When high-temperature oxidation is carried out in the furnace body, the temperature of the first ceramic heat storage module, the second ceramic heat storage module and the third ceramic heat storage module increases, and the isolation frame contacts with the heated first ceramic heat storage module, the second ceramic heat storage module and the third ceramic heat storage module. Heat is transferred from the isolation frame to the heat conducting plate and the bending part of the preheating pipe, thereby preheating the VOCs gas in the preheating pipe. The preheated VOCs gas is input into the air intake main pipe, which makes full use of thermal energy and reduces the energy consumption of the thermal storage high-temperature oxidation furnace. At the same time, the preheating fan and the air intake fan simultaneously transport VOCs gas to improve the high-temperature oxidation efficiency.

[0008] Preferably, the air intake backflush assembly comprises an air intake fan, a second air intake pipe, an air intake main pipe, a first air intake branch pipe, a first air intake valve, a second air intake branch pipe, a second air intake valve, a third air intake branch pipe, a third air intake valve, a backflush main pipe, a first backflush branch pipe, a first backflush valve, a second backflush branch pipe, a second backflush valve, a third backflush branch pipe and a third backflush valve, the air intake fan input end is fixedly connected to the second air intake pipe, the air intake fan output end is fixedly connected to the air intake main pipe, the air intake main pipe is fixedly connected to the first air intake branch pipe, the second air intake branch pipe, the second air intake valve, the third air intake branch pipe and the third backflush valve on the outside. A first air intake branch pipe and a third air intake branch pipe, a first air intake valve is arranged on the outer side of the first air intake branch pipe, a second air intake valve is arranged on the outer side of the second air intake branch pipe, a third air intake valve is arranged on the outer side of the third air intake branch pipe, a back-blowing main pipe is fixedly connected to the rear end of the air intake main pipe, a first back-blowing branch pipe, a second back-blowing branch pipe and a third back-blowing branch pipe are fixedly connected to the outer side of the back-blowing main pipe, a first back-blowing valve is arranged on the outer side of the first back-blowing branch pipe, a second back-blowing valve is arranged on the outer side of the second back-blowing branch pipe, and a third back-blowing valve is arranged on the outer side of the third back-blowing branch pipe.

[0009] Through the above technical solution, an air intake backflush component is provided to input VOCs gas into the furnace body for oxidation treatment and backflush treatment.

[0010] Preferably, the output end of the preheating pipe is interconnected with the air intake main pipe, the first air intake branch pipe, the second air intake branch pipe and the third air intake branch pipe correspond to the first ceramic heat storage module, the second ceramic heat storage module and the third ceramic heat storage module respectively, and the first backflush branch pipe, the second backflush branch pipe and the third backflush branch pipe correspond to the first ceramic heat storage module, the second ceramic heat storage module and the third ceramic heat storage module respectively.

[0011] Through the above technical solution, the air inlet pipe and the backflush pipe cooperate to ensure that the VOCs gas is fully treated.

[0012] Preferably, the air outlet component includes an air outlet main pipe, a first air outlet branch pipe, a first air outlet valve, a second air outlet branch pipe, a second air outlet valve, a third air outlet branch pipe and a third air outlet valve; the first air outlet branch pipe, the second air outlet branch pipe and the third air outlet branch pipe are fixedly connected to the outside of the air outlet main pipe; the first air outlet valve is arranged on the outside of the first air outlet branch pipe, the second air outlet valve is arranged on the outside of the second air outlet branch pipe, and the third air outlet valve is arranged on the outside of the third air outlet branch pipe.

[0013] Through the above technical scheme, an air outlet component is provided. In the first stage during use: VOCs gas is introduced through the air intake fan and the preheating fan, the first air intake valve is opened, and the VOCs gas contacts the first ceramic heat storage module that has stored heat and heated up through the first air intake branch pipe. The VOCs gas is heated and heated up and enters the high-temperature oxidation chamber, and the burner is started to carry out combustion and oxidation treatment on the VOCs gas. During this process, the third backflush valve is started, and the backflush gas enters the high-temperature oxidation chamber after passing through the third backflush branch pipe and the third ceramic heat storage module for combustion. After combustion, the second air outlet valve is opened to discharge the treated clean gas, and the high-temperature clean gas contacts the second ceramic heat storage module, so that the second ceramic heat storage module is heated and heated up and stores heat, and the clean gas is discharged from the exhaust pipe after passing through the air outlet main pipe and the connecting square pipe.

[0014] Preferably, the first gas outlet branch pipe, the second gas outlet branch pipe and the third gas outlet branch pipe correspond to the first ceramic heat storage module, the second ceramic heat storage module and the third ceramic heat storage module respectively.

[0015] Through the above technical scheme, the second stage; after the first stage is completed, the VOCs gas is introduced through the air intake fan and the preheating fan, the second air intake valve is opened, and the VOCs gas contacts the second ceramic heat storage module that has been heated and heated through the second air intake branch pipe. The VOCs gas is heated and enters the high-temperature oxidation chamber for combustion and oxidation treatment. In this process, the first backflush valve is started, and the backflush gas enters the high-temperature oxidation chamber after passing through the first backflush branch pipe and the first ceramic heat storage module for combustion. After combustion, the third air outlet valve is opened to discharge the treated clean gas, and the high-temperature clean gas contacts the third ceramic heat storage module, so that the third ceramic heat storage module is heated and heated and heat is stored, and the clean gas is discharged from the exhaust pipe after passing through the air outlet main pipe and the connecting square pipe; the first Three stages; after the completion of the second stage, VOCs gas is introduced through the air intake fan and the preheating fan, the third air intake valve is opened, and the VOCs gas contacts the third ceramic heat storage module that has stored heat and heated up through the third air intake branch pipe. The VOCs gas is heated and heated up and enters the high-temperature oxidation chamber for combustion and oxidation treatment. During this process, the second back-blowing valve is started, and the back-blowing gas enters the high-temperature oxidation chamber for combustion after passing through the second back-blowing branch pipe and the second ceramic heat storage module. After combustion, the first air outlet valve is opened to discharge the treated clean gas, and the high-temperature clean gas contacts the first ceramic heat storage module, so that the first ceramic heat storage module is heated and heated up and stores heat. The clean gas is discharged from the exhaust pipe after passing through the air outlet main pipe and the connecting square pipe. The first, second and third stages work in a cycle.

[0016] Preferably, the cooling component comprises a cooling fan, a cooling pipe and a suction pipe, the cooling pipe is fixedly connected to the output end of the cooling fan, and the suction pipe is fixedly connected to the input end of the cooling fan.

[0017] Through the above technical solution, a cooling component is provided to cool the high-temperature oxidation chamber to avoid safety hazards caused by excessive temperature.

[0018] Preferably, the output end of the suction pipe is interconnected with the exhaust pipe, and the output end of the cooling pipe is interconnected with the furnace body.

[0019] Through the above technical solution, the cooling fan introduces the clean gas cooled by the exhaust duct after combustion into the furnace body through the suction pipe and the cooling pipe to cool the high-temperature oxidation chamber.

[0020] Preferably, the regenerative high-temperature oxidation furnace also includes a guide assembly, which is composed of a reduction motor and a guide plate. The guide plate is rotatably arranged inside the furnace body, and a reduction motor is fixedly connected to the rear end of the furnace body. The reduction motor is configured to drive the connected guide plate and can drive the guide plate to rotate inside the furnace body.

[0021] Preferably, the reduction motor and the guide plate are provided in two identical groups.

[0022] Through the above technical solution, a guide assembly consisting of a reduction motor and a guide plate is provided, which can guide the gas in the furnace, optimize the flow channel, and improve operating efficiency.

[0023] Compared with the prior art, the present invention provides a regenerative high-temperature oxidation furnace, which has the following beneficial effects: 1. The regenerative high-temperature oxidation furnace is provided with a preheating component. VOCs gas is input from a preheating fan, passes through a preheating pipe, and a bending part and a heat conducting plate are arranged inside an isolation frame. When high-temperature oxidation is performed in the furnace body, the temperature of the first ceramic heat storage module, the second ceramic heat storage module and the third ceramic heat storage module increases. The isolation frame contacts the heated first ceramic heat storage module, the second ceramic heat storage module and the third ceramic heat storage module. Heat is conducted from the isolation frame to the heat conducting plate and the bending part of the preheating pipe, thereby preheating the VOCs gas in the preheating pipe. The preheated VOCs gas is input into the air intake main pipe, which fully utilizes the heat energy and reduces the energy consumption of the regenerative high-temperature oxidation furnace. At the same time, the preheating fan and the air intake fan simultaneously transport the VOCs gas, thereby improving the high-temperature oxidation efficiency. 2. The regenerative high-temperature oxidation furnace is provided with an insulation seat and a front insulation box. The pipelines of the preheating component and the air intake backflush component are arranged inside the insulation seat and the front insulation box, so as to insulate the gas inside the pipeline and reduce the heat loss, thereby reducing the energy consumption of the regenerative high-temperature oxidation furnace and achieving the effect of energy saving and environmental protection. At the same time, the pipelines are arranged inside the insulation seat and the front insulation box and can be inspected through the inspection door, which occupies less space. The regenerative high-temperature oxidation furnace occupies a small area and is easy to deploy; 3. The electrical control box of the regenerative high-temperature oxidation furnace is pre-programmed to maintain the normal operation of the regenerative high-temperature oxidation furnace. The oxidation temperature inside the high-temperature oxidation chamber is maintained at about 800°C. When the temperature inside the high-temperature oxidation chamber is too high, the electrical control box starts the cooling component. The cooling fan introduces the clean gas cooled by the exhaust pipe after combustion in the exhaust pipe into the furnace body through the suction pipe and the cooling pipe to cool the high-temperature oxidation chamber until it reaches a safe operating temperature. A reduction motor and a guide plate are set. The guide plate is initially in a horizontal state. When the gas after combustion passes through the first ceramic regenerative When the module is discharged, start the right reduction motor to drive the guide plate to rotate 45° counterclockwise to point to the lower right to guide the gas; when the post-combustion gas is discharged from the second ceramic heat storage module, start the left reduction motor to drive the guide plate to rotate 45° clockwise to point to the lower right, start the right reduction motor to drive the guide plate to rotate 45° counterclockwise to point to the lower left to guide the gas; when the post-combustion gas is discharged from the third ceramic heat storage module, start the left reduction motor to drive the guide plate to rotate 45° counterclockwise to point to the lower left to guide the gas, optimize the flow path, and improve operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The three-dimensional structure of the regenerative high-temperature oxidation furnace of the present invention is shown in the first perspective; Figure 2 It is a schematic diagram of the three-dimensional structure of the regenerative high-temperature oxidation furnace of the present invention from a second viewing angle; Figure 3 It is a schematic diagram of the thermal insulation base and furnace body split structure of the regenerative high temperature oxidation furnace of the present invention; Figure 4 It is a schematic diagram of the enlarged structure of the furnace body and preheating assembly of the regenerative high-temperature oxidation furnace of the present invention from a first perspective; Figure 5 It is a schematic diagram of the enlarged structure of the furnace body and preheating assembly of the regenerative high-temperature oxidation furnace of the present invention from a second viewing angle; Figure 6 It is a schematic diagram of the disassembled structure of the furnace body and preheating components of the regenerative high temperature oxidation furnace of the present invention; Figure 7 It is a schematic diagram of the disassembled structure of the furnace body and the air inlet back-blowing assembly of the regenerative high-temperature oxidation furnace of the present invention; Figure 8 It is a structural schematic diagram of the guide plate of the regenerative high-temperature oxidation furnace in the present invention in use state.

[0025] Among them: 1. base; 2. insulation seat; 3. insulation board; 4. furnace body; 5. insulation layer; 6. high temperature oxidation chamber; 7. isolation frame; 8. first ceramic heat storage module; 9. second ceramic heat storage module; 10. third ceramic heat storage module; 11. guide plate; 12. preheating assembly; 1201. preheating fan; 1202. first air inlet pipe; 1203. preheating pipe; 1204. bending part; 1205. heat conducting sheet; 13. air intake backflush assembly; 1301. air intake fan; 1302. second air intake pipe; 1303. air intake main pipe; 1304. first air intake branch pipe; 1305. first air intake valve; 1306. second air intake branch pipe; 1307. second air intake valve; 1308. third air intake branch pipe; 1309. third air intake valve; 1310. backflush main pipe pipe; 1311, first back-blowing branch pipe; 1312, first back-blowing valve; 1313, second back-blowing branch pipe; 1314, second back-blowing valve; 1315, third back-blowing branch pipe; 1316, third back-blowing valve; 14, air outlet assembly; 1401, air outlet main pipe; 1402, first air outlet branch pipe; 1403, first air outlet valve; 1404, second air outlet branch pipe; 1405, second air outlet valve; 1406, third air outlet branch pipe; 1407, third air outlet valve; 15, front temperature insulation box; 16, maintenance platform; 17, burner; 18, electrical control box; 19, exhaust pipe; 20, connecting square pipe; 21, exhaust maintenance platform; 22, cooling assembly; 2201, cooling fan; 2202, cooling pipe; 2203, suction pipe; 23, reduction motor. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0027] See also Figures 1 to 4 , which shows an example configuration scheme of the regenerative high-temperature oxidation furnace provided in this example.

[0028] As can be seen from the figure, the heat storage high temperature oxidation furnace given in this example mainly includes a base 1, a heat insulation seat 2, a heat insulation board 3, a furnace body 4, a first ceramic heat storage module 8, a second ceramic heat storage module 9, a third ceramic heat storage module 10, a preheating component 12, an air intake backflush component 13, an air outlet component 14, a burner 17, and a cooling component 22.

[0029] Among them, the upper end of the base 1 is fixedly connected to a thermal insulation seat 2, the inner wall of the thermal insulation seat 2 is provided with a thermal insulation board 3, and the upper end of the thermal insulation seat 2 is fixedly connected to a furnace body 4, thereby forming the main structure of the regenerative high-temperature oxidation furnace.

[0030] The inner wall of the furnace body 4 is provided with a heat insulation layer 5, the upper part of the furnace body 4 is provided with a high temperature oxidation chamber 6, and the bottom end of the furnace body 4 is fixedly connected with two isolation frames 7, and a corresponding heat exchange area is formed in the furnace body 4 through the isolation frames 7. The bottom end of the furnace body 4 is provided with a first ceramic heat storage module 8, a second ceramic heat storage module 9 and a third ceramic heat storage module 10, and the first ceramic heat storage module 8, the second ceramic heat storage module 9 and the third ceramic heat storage module 10 are sequentially spaced apart by two isolation frames 7.

[0031] Furthermore, a preheating assembly 12 is provided at the lower end of the furnace body 4 . The preheating assembly 12 is configured to be compatible with the isolation frame 7 and is installed based on the isolation frame 7 , thereby forming heat exchange with the ceramic heat storage module in the furnace body 4 .

[0032] Furthermore, in this embodiment, an air intake backflush assembly 13 is fixedly connected to the upper end of the base 1 , and the air intake backflush assembly 13 is connected and coordinated with the furnace body 4 and the preheating assembly 12 .

[0033] Furthermore, in this embodiment, a gas outlet assembly 14 is fixedly connected to the lower end of the furnace body 4 and is connected and matched with the furnace body 4 .

[0034] Furthermore, in this embodiment, a front insulation box 15 is fixedly connected to the front end of the insulation seat 2, and a burner 17 is fixedly connected to the front end of the furnace body 4.

[0035] Furthermore, in this embodiment, a maintenance platform 16 is welded to the front end of the furnace body 4 , and an electrical control box 18 is provided on the upper end of the maintenance platform 16 , and the electrical control box 18 is configured to cooperate with the burner 17 .

[0036] Furthermore, in this embodiment, an exhaust pipe 19 is fixedly connected to the upper end of the base 1, and the exhaust pipe 19 is connected and cooperated with the furnace body 4 through a connecting square tube 20 arranged on the outside.

[0037] Furthermore, in this example, an exhaust inspection platform 21 is welded to the outside of the exhaust duct 19 for daily maintenance of the exhaust duct 19 .

[0038] On the basis of the above scheme, this example further provides a cooling component 22, which is arranged on the base 1 and configured to communicate with the furnace body 4 and the exhaust pipe 19, and is used to introduce cooled clean gas from the exhaust pipe 19 to cool the inner cavity of the furnace body 4.

[0039] With respect to the regenerative high-temperature oxidation furnace given in this example, its specific implementation scheme is described in detail below.

[0040] See also Figure 5 and Figure 6 In some embodiments of this example, the preheating component 12 in the regenerative high temperature oxidation furnace specifically includes a preheating fan 1201, a first air inlet pipe 1202, a preheating pipe 1203, a bend 1204 and a heat conducting plate 1205.

[0041] Among them, the input end of the preheating fan 1201 is fixedly connected to the first air inlet pipe 1202, and the output end of the preheating fan 1201 is fixedly connected to the preheating pipe 1203. Two groups of bending parts 1204 are arranged in the middle of the preheating pipe 1203. Each group of bending parts 1204 here is in a continuous "J" shape, thereby increasing the heat exchange effect.

[0042] Furthermore, a heat conducting sheet 1205 is welded and connected to the outside of the bent portion 1204 , and the heat conducting sheet 1205 is fixedly installed inside the isolation frame 7 .

[0043] The preheating component 12 configured in this way can allow VOCs gas to be input from the preheating fan 1201, pass through the preheating pipe 1203, and the bending portion 1204 and the heat conducting plate 1205 are arranged inside the isolation frame 7. When high-temperature oxidation is carried out in the furnace body 4, the temperatures of the first ceramic heat storage module 8, the second ceramic heat storage module 9 and the third ceramic heat storage module 10 increase. Furthermore, the isolation frame 7 is in contact with the heated first ceramic heat storage module 8, the second ceramic heat storage module 9 and the third ceramic heat storage module 10, and heat is conducted from the isolation frame 7 to the heat conducting plate 1205 and the bending portion of the preheating pipe 1203, thereby preheating the VOCs gas in the preheating pipe 1203. The preheated VOCs gas is input into the air intake main pipe 1303, which makes full use of thermal energy and reduces the energy consumption of the thermal storage high-temperature oxidation furnace. At the same time, the preheating fan 1201 and the air intake fan 1301 simultaneously transport VOCs gas to improve the high-temperature oxidation efficiency.

[0044] See also Figure 5 and Figure 7 In some embodiments of the present example, the air intake backflush assembly 13 in the regenerative high temperature oxidation furnace includes an air intake fan 1301, a second air intake pipe 1302, an air intake main pipe 1303, a first air intake branch pipe 1304, a first air intake valve 1305, a second air intake branch pipe 1306, a second air intake valve 1307, a third air intake branch pipe 1308, a third air intake valve 1309, a backflush main pipe 1310, a first backflush branch pipe 1311, a first backflush valve 1312, a second backflush branch pipe 1313, a second backflush valve 1314, a third backflush branch pipe 1315 and a third backflush valve 1316.

[0045] Among them, the input end of the air intake fan 1301 is fixedly connected to the second air intake pipe 1302, the output end of the air intake fan 1301 is fixedly connected to the air intake main pipe 1303, the outer side of the air intake main pipe 1303 is fixedly connected to the first air intake branch pipe 1304, the second air intake branch pipe 1306 and the third air intake branch pipe 1308, the outer side of the first air intake branch pipe 1304 is provided with a first air intake valve 1305, the outer side of the second air intake branch pipe 1306 is provided with a second air intake valve 1307, and the outer side of the third air intake branch pipe 1308 is provided with a third air intake valve 1309. The rear end of the air intake main pipe 1303 is fixedly connected to a backblowing main pipe 1310, and the outer side of the backblowing main pipe 1310 is fixedly connected to a first backblowing branch pipe 1311, a second backblowing branch pipe 1313 and a third backblowing branch pipe 1315, a first backblowing valve 1312 is arranged on the outer side of the first backblowing branch pipe 1311, a second backblowing valve 1314 is arranged on the outer side of the second backblowing branch pipe 1313, and a third backblowing valve 1316 is arranged on the outer side of the third backblowing branch pipe 1315, which correspond to the first ceramic heat storage module 8, the second ceramic heat storage module 9 and the third ceramic heat storage module 10 in the furnace body through the first backblowing valve 1312, the second backblowing valve 1314 and the third backblowing valve 1316 respectively.

[0046] At the same time, the output end of the preheating pipe 1203 is interconnected with the air intake main pipe 1303, and the first air intake branch pipe 1304, the second air intake branch pipe 1306 and the third air intake branch pipe 1308 correspond to the first ceramic heat storage module 8, the second ceramic heat storage module 9 and the third ceramic heat storage module 10 respectively; the first backflush branch pipe 1311, the second backflush branch pipe 1313 and the third backflush branch pipe 1315 correspond to the first ceramic heat storage module 8, the second ceramic heat storage module 9 and the third ceramic heat storage module 10 respectively.

[0047] The air intake backflush assembly 13 thus arranged can efficiently input VOCs gas into the furnace body 4 for oxidation treatment and backflush treatment. Furthermore, based on the cooperation between the air intake backflush assembly 13 and the preheating assembly 12, that is, the cooperation between the air intake pipe and the backflush pipe ensures that the VOCs gas is fully treated.

[0048] See also Figure 5 and Figure 7 In some embodiments of this example, the gas outlet assembly 14 in the regenerative high temperature oxidation furnace includes a gas outlet main pipe 1401, a first gas outlet branch pipe 1402, a first gas outlet valve 1403, a second gas outlet branch pipe 1404, a second gas outlet valve 1405, a third gas outlet branch pipe 1406 and a third gas outlet valve 1407.

[0049] Among them, the first gas outlet branch pipe 1402, the second gas outlet branch pipe 1404 and the third gas outlet branch pipe 1406 are fixedly connected to the outside of the gas outlet main pipe 1401, the first gas outlet branch pipe 1402 is provided with a first gas outlet valve 1403, the second gas outlet branch pipe 1404 is provided with a second gas outlet valve 1405, and the third gas outlet branch pipe 1406 is provided with a third gas outlet valve 1407.

[0050] Specifically, the first gas outlet branch pipe 1402, the second gas outlet branch pipe 1404 and the third gas outlet branch pipe 1406 correspond to the first ceramic heat storage module 8, the second ceramic heat storage module 9 and the third ceramic heat storage module 10 in the furnace body through the first gas outlet valve 1403, the second gas outlet valve 1405 and the third gas outlet valve 1407 respectively.

[0051] The gas outlet assembly 14 configured in this way can cooperate with the preheating assembly 12 and the air inlet backflush assembly 13 to complete the three-stage operation process of the regenerator high-temperature oxidation furnace.

[0052] As a further explanation, in the first stage: VOCs gas is introduced through the air intake fan 1301 and the preheating fan 1201, the first air intake valve 1305 is opened, and the VOCs gas contacts the first ceramic heat storage module 8 that has stored heat and heated up through the first air intake branch pipe 1304, and the VOCs gas is heated and heated into the high-temperature oxidation chamber 6, and the burner 17 is started to burn and oxidize the VOCs gas; in this process, the third back-blowing valve 1316 is started, and the back-blowing gas enters the high-temperature oxidation chamber 6 after passing through the third back-blowing branch pipe 1315 and the third ceramic heat storage module 10 for combustion, and after combustion, the second air outlet valve 1405 is opened, and the treated clean gas is discharged through the second air outlet branch pipe 1404, and the high-temperature clean gas contacts the second ceramic heat storage module 9, so that the second ceramic heat storage module 9 is heated and heated and stores heat, and the clean gas is discharged from the exhaust pipe 19 after passing through the air outlet main pipe 1401 and the connecting square pipe 20.

[0053] The second stage: After the completion of the first stage, VOCs gas is introduced through the air intake fan 1301 and the preheating fan 1201, and the second air intake valve 1307 is opened. The VOCs gas contacts the second ceramic heat storage module 9 which has been heated and heated through the second air intake branch pipe 1306. The VOCs gas is heated and heated and enters the high-temperature oxidation chamber 6 for combustion and oxidation treatment. During this process, the first back-blowing valve 1312 is started, and the back-blowing gas enters the high-temperature oxidation chamber 6 for combustion after passing through the first back-blowing branch pipe 1311 and the first ceramic heat storage module 8. After combustion, the third air outlet valve 1407 is opened, and the treated clean gas is discharged through the third air outlet branch pipe 1406. The high-temperature clean gas contacts the third ceramic heat storage module 10, so that the third ceramic heat storage module 10 is heated and heated and heat is stored. The clean gas is discharged from the exhaust pipe 19 after passing through the air outlet main pipe 1401 and the connecting square pipe 20.

[0054] The third stage: After the completion of the second stage, VOCs gas is introduced through the air intake fan 1301 and the preheating fan 1201, and the third air intake valve 1309 is opened. The VOCs gas contacts the third ceramic heat storage module 10 which has been heated and heated through the third air intake branch pipe 1308. The VOCs gas is heated and heated and enters the high-temperature oxidation chamber 6 for combustion and oxidation treatment. During this process, the second back-blowing valve 1314 is started, and the back-blowing gas enters the high-temperature oxidation chamber 6 after passing through the second back-blowing branch pipe 1313 and the second ceramic heat storage module 9 for combustion. After combustion, the first air outlet valve 1403 is opened, and the treated clean gas is discharged through the first air outlet branch pipe 1402. The high-temperature clean gas contacts the first ceramic heat storage module 8, so that the first ceramic heat storage module 8 is heated and heated and heat is stored. The clean gas passes through the air outlet main pipe 1401 and the connecting square pipe 20 and is discharged from the exhaust pipe 19. The first, second and third stages work in a cycle.

[0055] See also Figure 3 and Figure 8 In some embodiments of this example, the cooling component 22 in the regenerative high-temperature oxidation furnace specifically includes a cooling fan 2201, a cooling pipe 2202 and a suction pipe 2203. The cooling pipe 2202 is fixedly connected to the output end of the cooling fan 2201, and the suction pipe 2203 is fixedly connected to the input end of the cooling fan 2201.

[0056] Furthermore, the output end of the suction pipe 2203 is interconnected with the exhaust pipe 19 , and the output end of the cooling pipe 2202 is interconnected with the furnace body 4 .

[0057] The cooling assembly 22 thus arranged can effectively cool the high temperature oxidation chamber 6 to avoid safety hazards caused by excessive temperature. Specifically, the cooling fan 2201 can introduce the clean gas cooled by the exhaust pipe 19 after combustion in the exhaust pipe 19 into the furnace body 4 through the suction pipe 2203 and the cooling pipe 2202 to cool the high temperature oxidation chamber 6.

[0058] See also Figure 1 In some embodiments of the present example, the electrical control box 18 is electrically connected to the preheating assembly 12 , the air intake blowback assembly 13 , the air outlet assembly 14 , the burner 17 , and the cooling assembly 22 .

[0059] Furthermore, in this example, the electrical control box 18 can be pre-programmed to maintain the normal operation of the regenerative high-temperature oxidation furnace. The oxidation temperature inside the high-temperature oxidation chamber 6 is maintained at about 800°C. When the temperature inside the high-temperature oxidation chamber 6 is too high, the electrical control box 18 starts the cooling component 22. The cooling fan 2201 introduces the clean gas that has been cooled after combustion in the exhaust pipe 19 into the furnace body 4 through the suction pipe 2203 and the cooling pipe 2202, so as to cool the high-temperature oxidation chamber 6 until a safe operating temperature is reached. Example

[0060] This example further provides an improved solution based on the solution in the first embodiment.

[0061] Based on the configuration of the regenerative high temperature oxidation furnace given in the first embodiment, this example further provides a flow guide component for guiding the airflow in the furnace body.

[0062] The guide assembly here is mainly composed of a reduction motor 23 and a guide plate 11, wherein the guide plate 11 is rotatably arranged inside the furnace body 4, and a reduction motor 23 is fixedly connected to the rear end of the furnace body 4. The reduction motor 23 is configured to be electrically connected to the electrical control box 18, and drive the guide plate 11 to drive the guide plate 11 to rotate inside the furnace body 4, thereby achieving a guide effect on the airflow inside the furnace body 4.

[0063] In the specific setting, for the first ceramic heat storage module 8, the second ceramic heat storage module 9 and the third ceramic heat storage module 10 in the combined furnace body 4, two groups of guide plates 11 are provided in this example, and two groups of reduction motors 23 are provided in cooperation.

[0064] As a further explanation, the guide assembly provided in this example is specifically configured to cooperate with the first ceramic heat storage module 8, the second ceramic heat storage module 9 and the third ceramic heat storage module 10 in the furnace body 4 to perform gas guide, thereby improving the operating efficiency of the oxidation furnace.

[0065] Specifically, the deceleration motor 23 drives the guide plate 11 to be in a horizontal state in its initial state. When the post-combustion gas is discharged from the first ceramic heat storage module 8, the right deceleration motor 23 is started to drive the guide plate 11 to rotate 45° counterclockwise to the lower right to guide the gas. When the post-combustion gas is discharged from the second ceramic heat storage module 9, the left reduction motor 23 is started to drive the guide plate 11 to rotate 45° clockwise to point to the lower right, and the right reduction motor 23 is started to drive the guide plate 11 to rotate 45° counterclockwise to point to the lower left, so as to guide the gas; When the post-combustion gas is discharged from the third ceramic heat storage module 10, the left reduction motor 23 is started to drive the guide plate 11 to rotate 45° counterclockwise to the lower left, so as to guide the gas, optimize the flow channel, and improve the working efficiency.

[0066] This example also provides some other specific optimization settings, as follows: The exhaust inspection platform 21 and the inspection platform 16 are both provided with climbing ladders at the front end, and the rear end of the insulation seat 2 and the front end of the front insulation box 15 are both provided with inspection doors, and the insulation seat 2 and the front insulation box 15 have the same structure. The insulation seat 2 and the front insulation box 15 are arranged in this way, so that the pipelines of the preheating component 12 and the air intake backflush component 13 are arranged inside the insulation seat 2 and the front insulation box 15, and the gas inside the pipeline is kept warm, which reduces the loss of heat, thereby reducing the energy consumption of the regenerative high-temperature oxidation furnace, achieving the effect of energy saving and environmental protection. At the same time, the pipelines are arranged inside the insulation seat 2 and the front insulation box 15, and can be inspected through the inspection door, which occupies less space. The regenerative high-temperature oxidation furnace occupies a small area and is easy to deploy.

[0067] The operation process of the regenerative high temperature oxidation furnace provided by the present invention is described in detail below.

[0068] Combination Figures 1 to 8 As shown, during the specific operation of this regenerative high temperature oxidation furnace, First, VOCs gas is input from the preheating fan 1201, passes through the preheating tube 1203, and the bending part 1204 and the heat conducting plate 1205 are arranged inside the isolation frame 7. When high-temperature oxidation is carried out in the furnace body 4, the temperature of the first ceramic heat storage module 8, the second ceramic heat storage module 9 and the third ceramic heat storage module 10 increases, and the isolation frame 7 contacts with the heated first ceramic heat storage module 8, the second ceramic heat storage module 9 and the third ceramic heat storage module 10. Heat is transferred from the isolation frame 7 to the heat conducting plate 1205 and the bending part of the preheating tube 1203, thereby preheating the VOCs gas in the preheating tube 1203. The preheated VOCs gas is input into the air intake main pipe 1303, which makes full use of thermal energy and reduces the energy consumption of the thermal storage high-temperature oxidation furnace. At the same time, the preheating fan 1201 and the air intake fan 1301 simultaneously transport VOCs gas to improve the high-temperature oxidation efficiency.

[0069] Then, the first stage is entered: VOCs gas is introduced through the air intake fan 1301 and the preheating fan 1201, the first air intake valve 1305 is opened, and the VOCs gas contacts the first ceramic heat storage module 8 which has been heated and heated through the first air intake branch pipe 1304. The VOCs gas is heated and enters the high-temperature oxidation chamber 6, and the burner 17 is started to burn and oxidize the VOCs gas. In this process, the third back-blowing valve 1316 is started, and the back-blowing gas enters the third ceramic heat storage module 10 after passing through the third back-blowing branch pipe 1315. Enter the high-temperature oxidation chamber 6 for combustion, open the second gas outlet valve 1405 after combustion to discharge the treated clean gas, start the left reduction motor 23 to drive the guide plate 11 to rotate 45° clockwise to point to the lower right, start the right reduction motor 23 to drive the guide plate 11 to rotate 45° counterclockwise to point to the lower left for gas diversion, and the high-temperature clean gas contacts the second ceramic heat storage module 9, so that the second ceramic heat storage module 9 is heated and heat is stored, and the clean gas is discharged from the exhaust pipe 19 after passing through the gas outlet main pipe 1401 and the connecting square pipe 20; The second stage: after the completion of the first stage, the VOCs gas is introduced through the air intake fan 1301 and the preheating fan 1201, and the second air intake valve 1307 is opened. The VOCs gas contacts the second ceramic heat storage module 9 which has been heated and heated through the second air intake branch pipe 1306. The VOCs gas is heated and heated and enters the high-temperature oxidation chamber 6 for combustion and oxidation treatment. During this process, the first back-blowing valve 1312 is started, and the back-blowing gas enters the high-temperature oxidation chamber 6 after passing through the first back-blowing branch pipe 1311 and the first ceramic heat storage module 8 for combustion. After combustion, the third air outlet valve 1407 is opened to discharge the treated clean gas, and the left reduction motor 23 is started to drive the guide plate 11 to rotate counterclockwise 45° to point to the lower left, so as to guide the gas, optimize the flow channel, and improve the working efficiency. The high-temperature clean gas contacts the third ceramic heat storage module 10, so that the third ceramic heat storage module 10 is heated and heated and heat is stored. The clean gas passes through the air outlet main pipe 1401 and the connecting square tube 20 and is discharged from the exhaust pipe 19; The third stage: after the completion of the second stage, VOCs gas is introduced through the air intake fan 1301 and the preheating fan 1201, and the third air intake valve 1309 is opened. The VOCs gas contacts the third ceramic heat storage module 10 which has been heated and heated through the third air intake branch pipe 1308. The VOCs gas is heated and heated and enters the high-temperature oxidation chamber 6 for combustion and oxidation treatment. During this process, the second back-blowing valve 1314 is started, and the back-blowing gas enters the high-temperature oxidation chamber 6 after passing through the second back-blowing branch pipe 1313 and the second ceramic heat storage module 9 for combustion. After combustion, the first air outlet valve 1403 is opened to discharge the treated clean gas, and the right-side reduction motor 23 is started to drive the guide plate 11 to rotate counterclockwise 45° to point to the lower right for gas diversion. The high-temperature clean gas contacts the first ceramic heat storage module 8, so that the first ceramic heat storage module 8 is heated and heated and heat is stored. The clean gas passes through the air outlet main pipe 1401 and the connecting square pipe 20 and is discharged from the exhaust pipe 19. The first, second and third stages work in a cycle.

[0070] During the above-mentioned cycle operation, when the temperature in the high-temperature oxidation chamber 6 is too high, the electrical control box 18 starts the cooling component 22, and the cooling fan 2201 introduces the clean gas cooled by the exhaust pipe 19 after combustion in the exhaust pipe 19 into the furnace body 4 through the suction pipe 2203 and the cooling pipe 2202, so as to cool the high-temperature oxidation chamber 6 until a safe operating temperature is reached.

[0071] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A regenerative high temperature oxidation furnace, comprising a base (1) and an exhaust pipe (19), characterized in that: It also includes a preheating component (12), an air intake backflush component (13), an air outlet component (14), and a cooling component (22); The upper end of the base (1) is fixedly connected to a heat-insulating seat (2), the upper end of the heat-insulating seat (2) is fixedly connected to a furnace body (4), a high-temperature oxidation chamber (6) is provided in the upper part of the furnace body (4), two isolation frames (7) are fixedly connected to the bottom end of the furnace body (4), and a first ceramic heat storage module (8), a second ceramic heat storage module (9) and a third ceramic heat storage module (10) are provided in the bottom end of the furnace body (4); An exhaust pipe (19) is fixedly connected to the upper end of the base (1), and the exhaust pipe (19) is arranged to communicate with the furnace body (4); A preheating component (12) is provided at the lower end of the furnace body (4); the preheating component (12) is configured to be compatible with the isolation frame (7) and is installed based on the isolation frame (7) so as to form heat exchange with the ceramic heat storage module in the furnace body (4); An air intake backflush assembly (13) is fixedly connected to the upper end of the base (1), and the air intake backflush assembly (13) is connected and arranged in coordination with the furnace body (4) and the preheating assembly (12); The lower end of the furnace body (4) is fixedly connected with a gas outlet assembly (14), and the gas outlet assembly (14) is connected and matched with the furnace body (4); The cooling component (22) is arranged on the base (1) and is configured to communicate with the furnace body (4) and the exhaust pipe (19) and is used to introduce cooled clean gas from the exhaust pipe (19) to cool the inner cavity of the furnace body (4).

2. The regenerative high temperature oxidation furnace according to claim 1, characterized in that: The preheating assembly (12) comprises a preheating fan (1201), a first air inlet pipe (1202), a preheating pipe (1203), a bent portion (1204) and a heat conducting sheet (1205); the input end of the preheating fan (1201) is fixedly connected to the first air inlet pipe (1202); the output end of the preheating fan (1201) is fixedly connected to the preheating pipe (1203); two bent portions (1204) are arranged in the middle of the preheating pipe (1203); the outer side of the bent portion (1204) is welded to a heat conducting sheet (1205); and the heat conducting sheet (1205) is fixedly mounted inside the isolation frame (7).

3. The regenerative high temperature oxidation furnace according to claim 2, characterized in that: The air intake backflush assembly (13) comprises an air intake fan (1301), a second air intake pipe (1302), an air intake main pipe (1303), a first air intake branch pipe (1304), a first air intake valve (1305), a second air intake branch pipe (1306), a second air intake valve (1307), a third air intake branch pipe (1308), a third air intake valve (1309), a backflush main pipe (1310), a first backflush branch pipe (1311), a first backflush The air intake fan (1301) is fixedly connected to the second air intake pipe (1302), the air intake fan (1301) is fixedly connected to the air intake main pipe (1303), and the outer side of the air intake main pipe (1303) is fixedly connected to the first air intake branch pipe (1304). ), a second air intake branch pipe (1306) and a third air intake branch pipe (1308); a first air intake valve (1305) is arranged on the outside of the first air intake branch pipe (1304); a second air intake valve (1307) is arranged on the outside of the second air intake branch pipe (1306); a third air intake valve (1309) is arranged on the outside of the third air intake branch pipe (1308); a backflush main pipe (1310) is fixedly connected to the rear end of the air intake main pipe (1303); a first backflush branch pipe (1311), a second backflush branch pipe (1313) and a third backflush branch pipe (1315) are fixedly connected to the outside of the backflush main pipe (1310); a first backflush valve (1312) is arranged on the outside of the first backflush branch pipe (1311); a second backflush valve (1314) is arranged on the outside of the second backflush branch pipe (1313); and a third backflush valve (1316) is arranged on the outside of the third backflush branch pipe (1315).

4. The regenerative high temperature oxidation furnace according to claim 3, characterized in that: The output end of the preheating pipe (1203) is interconnected with the air intake main pipe (1303); the first air intake branch pipe (1304), the second air intake branch pipe (1306) and the third air intake branch pipe (1308) respectively correspond to the first ceramic heat storage module (8), the second ceramic heat storage module (9) and the third ceramic heat storage module (10); the first backflush branch pipe (1311), the second backflush branch pipe (1313) and the third backflush branch pipe (1315) respectively correspond to the first ceramic heat storage module (8), the second ceramic heat storage module (9) and the third ceramic heat storage module (10).

5. The regenerative high temperature oxidation furnace according to claim 1, characterized in that: The gas outlet assembly (14) comprises a gas outlet main pipe (1401), a first gas outlet branch pipe (1402), a first gas outlet valve (1403), a second gas outlet branch pipe (1404), a second gas outlet valve (1405), a third gas outlet branch pipe (1406) and a third gas outlet valve (1407); the first gas outlet branch pipe (1402), the second gas outlet branch pipe (1404) and the third gas outlet branch pipe (1406) are fixedly connected to the outside of the gas outlet main pipe (1401); the first gas outlet valve (1403) is arranged on the outside of the first gas outlet branch pipe (1402); the second gas outlet valve (1405) is arranged on the outside of the second gas outlet branch pipe (1404); and the third gas outlet valve (1407) is arranged on the outside of the third gas outlet branch pipe (1406).

6. The regenerative high temperature oxidation furnace according to claim 5, characterized in that: The first gas outlet branch pipe (1402), the second gas outlet branch pipe (1404) and the third gas outlet branch pipe (1406) correspond to the first ceramic heat storage module (8), the second ceramic heat storage module (9) and the third ceramic heat storage module (10), respectively.

7. The regenerative high temperature oxidation furnace according to claim 1, characterized in that: The cooling component (22) comprises a cooling fan (2201), a cooling pipe (2202) and a suction pipe (2203); the cooling pipe (2202) is fixedly connected to the output end of the cooling fan (2201), and the suction pipe (2203) is fixedly connected to the input end of the cooling fan (2201).

8. The regenerative high temperature oxidation furnace according to claim 7, characterized in that: The output end of the suction pipe (2203) is in communication with the exhaust pipe (19), and the output end of the cooling pipe (2202) is in communication with the furnace body (4).

9. The regenerative high temperature oxidation furnace according to claim 1, characterized in that: The regenerative high-temperature oxidation furnace further comprises a flow guide assembly, the flow guide assembly being composed of a reduction motor (23) and a flow guide plate (11) in cooperation, the flow guide plate (11) being rotatably arranged inside the furnace body (4), and a reduction motor (23) being fixedly connected to the rear end of the furnace body (4), the reduction motor (23) being configured to drive the flow guide plate (11) so as to drive the flow guide plate (11) to rotate inside the furnace body (4).

10. The regenerative high temperature oxidation furnace according to claim 9, characterized in that: The reduction motor (23) and the guide plate (11) are provided in two identical groups.

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