Waste heat recovery type TO furnace for tail gas treatment

Abstract

The utility model relates to the technical field of TO furnaces, in particular to a waste heat recovery type TO furnace for tail gas treatment, which comprises a combustion chamber body, an opening is arranged on the front surface of the combustion chamber body, an access door is mounted on the inner wall of the opening of the combustion chamber body, and an ignition device is mounted on the ground surface of a cavity of the combustion chamber body. A tail gas inlet is formed in the side surface of the upper end of the combustion chamber body. The waste heat recovery type TO furnace for tail gas treatment is provided with the heat exchange cavity and the heat exchange plate body, when the waste heat recovery type TO furnace for tail gas treatment works, tail gas is combusted through the combustion chamber body, then generated high-temperature flue gas is guided into the heat exchange cavity, the high-temperature flue gas makes contact with the heat exchange plate body, and the heat exchange plate body can conveniently transfer heat to a heat conduction oil pipeline for heating; heat energy is provided for heating equipment in isobutylbenzene production, the energy utilization efficiency is remarkably improved, dependence on external energy is reduced through recycling of waste heat, and the operation cost of the system is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to TO furnace technical field, concretely is a kind of waste heat recovery type TO furnace for tail gas treatment. BACKGROUND

[0002] In chemical production process, tail gas treatment is an important link, currently, chemical tail gas usually adopts TO furnace to carry out combustion treatment, TO furnace usually refers to direct-fired thermal oxidation furnace, it is a kind of energy-saving, efficient, safe and environmental protection device for treating high-concentration volatile organic waste gas, waste gas is heated to above 760 DEG C, organic matter in waste gas occurs oxidation reaction under high temperature, hydrocarbons are converted into carbon dioxide and water, then directly discharged into atmosphere, it is applicable to the treatment of waste gas of spraying and drying equipment, and the purification of harmful gas discharged by petrochemical industry, and it has superiority for gas purification of water-soluble, viscous substance and high molecular substance in organic waste gas;It is applicable to the treatment of high-temperature, small air volume, medium-high concentration organic waste gas.

[0003] TO furnace produces a large amount of high-temperature flue gas when burning tail gas, these flue gases are usually directly discharged into atmosphere, so that the overall energy utilization rate of system is relatively low, resulting in that a large amount of waste heat is not effectively utilized, thereby accelerating the aging and corrosion of equipment and reducing the service life of equipment. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of waste heat recovery type TO furnace for tail gas treatment to solve the problem that the high-temperature flue gas of TO furnace is directly discharged into atmosphere in the above background art, so that the overall energy utilization rate of system is relatively low, resulting in that a large amount of waste heat is not effectively utilized, thereby accelerating the aging and corrosion of equipment and reducing the service life of equipment.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of waste heat recovery type TO furnace for tail gas treatment, including combustion chamber body, its front surface is provided with opening, and the inner wall of combustion chamber body opening is installed with access door, the surface of the cavity of combustion chamber body is installed with igniter, the upper end side surface of combustion chamber body is installed with tail gas inlet, the upper end of combustion chamber body is fixedly connected with heat exchange chamber, the cavity inner wall of heat exchange chamber is fixedly connected with heat exchange plate body, heat-conducting oil pipeline is fixedly connected in heat exchange chamber, tail gas outlet is installed in the side surface of heat exchange chamber, the side of combustion chamber body is provided with air intake treatment box, the upper end side surface of air intake treatment box is fixedly connected with feed pipe, the cavity of air intake treatment box is provided with filter mechanism, it removes impurities by filter bag and utilizes extrusion sliding block to push limit stopper and active carbon support plate and is fixed.

[0006] Preferably, the combustion chamber body is rotatably connected with the access door, and the tail gas inlet is communicated with the lower end side surface of the air inlet treatment box.

[0007] By the rotatable connection between the combustion chamber body and the access door, the device is convenient to maintain, and the tail gas inlet is communicated with the air inlet treatment box for feeding.

[0008] Preferably, the heat exchange chamber is communicated with the combustion chamber body, the heat exchange chamber is designed in a strip shape, and the heat conducting oil pipeline is designed in a serpentine shape and penetrates through the surface of the heat exchange plate body.

[0009] By the heat exchange chamber, the high-temperature flue gas is guided, and the heat exchange plate body guides the heat to the heat conducting oil pipeline.

[0010] Preferably, the filtering mechanism comprises a filtering cloth bag, the filtering cloth bag is fixedly connected to the inner wall of the air inlet treatment box cavity, the lower end side surface of the air inlet treatment box is provided with an activated carbon support plate, one end of the activated carbon support plate is fixedly connected with a limiting clamp block, the side surface of the air inlet treatment box is provided with an adjusting screw, the outer surface of the adjusting screw is provided with an extrusion sliding block, the inner wall of the air inlet treatment box cavity is provided with a baffle, and the lower surface of the air inlet treatment box baffle is fixedly provided with a sealing rubber strip.

[0011] By the filtering cloth bag of the filtering mechanism, the impurities carried in the gas are conveniently filtered and cleaned.

[0012] Preferably, the filtering cloth bag is located above the activated carbon support plate, and the activated carbon support plate is limited by the baffle of the inner wall of the air inlet treatment box.

[0013] By the activated carbon support plate, the impurities in the tail gas are adsorbed and filtered.

[0014] Preferably, the lower end side surface of the limiting clamp block is designed to be inclined, the adjusting screw is rotatably connected with the air inlet treatment box, and the adjusting screw is threadedly connected with the extrusion sliding block.

[0015] By rotating the adjusting screw to drive the extrusion sliding block to move, the extrusion sliding block pushes the limiting clamp block to move.

[0016] Preferably, the extrusion sliding block is slidably connected with the air inlet treatment box, the upper end of the extrusion sliding block is designed to be arc-shaped, and the upper surface of the activated carbon support plate is provided with a groove corresponding to the sealing rubber strip.

[0017] By the limiting clamp block driving the activated carbon support plate to be fastened, the activated carbon support plate is sealed against the sealing rubber strip.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the waste heat recovery TO furnace for exhaust gas treatment:

[0019] 1. Equipped with a heat exchange chamber and a heat exchange plate body, this device burns exhaust gas through the combustion chamber body during operation. The resulting high-temperature flue gas is then introduced into the heat exchange chamber, where it comes into contact with the heat exchange plate body. This facilitates the heat transfer of heat from the heat exchange plate body to the heat transfer oil pipeline for heating, providing thermal energy for the heating equipment in isobutylbenzene production. This significantly improves energy utilization efficiency. The recovery and utilization of waste heat reduces dependence on external energy sources and lowers the system's operating costs. By recovering waste heat, the direct emission of high-temperature flue gas is reduced, lowering the environmental heat load and meeting the energy conservation and emission reduction requirements of modern industry.

[0020] 2. The device is equipped with a feed pipe and filter bags. When the device is working, the exhaust gas is introduced into the air intake treatment box through the feed pipe. The filter bags filter and clean large particulate impurities, reducing the impurity content. In addition, the activated carbon support plates adsorb impurities, which helps to reduce the adhesion of impurities to the inner wall of subsequent processing equipment and improves the practicality of the device.

[0021] 3. A limit block and an adjusting screw are provided so that when the device is working, rotating the adjusting screw drives the extrusion slider to rise and fall, which facilitates the extrusion control of the limit block and increases the efficiency of replacing and maintaining the activated carbon support plate. As the extrusion slider rises, the arc-shaped surface of the extrusion slider pushes the inclined surface of the limit block, which facilitates the limit block to drive the activated carbon support plate to be horizontally fastened and press upward, and facilitates the sealing strip to abut against the surface of the activated carbon support plate, thus increasing the sealing performance. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the connection between the combustion chamber body and the inspection door of this utility model;

[0023] Figure 2 This is a three-dimensional structural diagram of the connection between the heat exchange chamber and the exhaust port of this utility model;

[0024] Figure 3 This is a three-dimensional structural diagram of the connection between the combustion chamber body and the ignition device of this utility model;

[0025] Figure 4 This is a three-dimensional structural diagram of the connection between the heat exchange plate body and the heat transfer oil pipeline of this utility model;

[0026] Figure 5 This is a three-dimensional structural diagram of the connection between the air intake treatment box and the feed pipe of this utility model;

[0027] Figure 6 This is a three-dimensional structural diagram of the connection between the adjusting screw and the extrusion slider of this utility model.

[0028] Fig. 1, combustion chamber body; 2, access door; 3, ignition device; 4, tail gas inlet; 5, heat exchange chamber; 6, heat exchange plate body; 7, heat conducting oil pipeline; 8, tail gas outlet; 9, gas inlet treatment box; 10, feed pipeline; 11, filter cloth bag; 12, limiting block; 13, activated carbon support plate; 14, adjusting screw; 15, extrusion sliding block; 16, sealing rubber strip. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] Please refer to Figures 1-6 The present application provides a technical solution: a waste heat recovery type TO furnace for tail gas treatment, comprising a combustion chamber body 1, an access door 2, an ignition device 3, a tail gas inlet 4, a heat exchange chamber 5, a heat exchange plate body 6, a heat conducting oil pipeline 7, a tail gas outlet 8, a gas inlet treatment box 9, a feed pipeline 10, a filter cloth bag 11, a limiting block 12, an activated carbon support plate 13, an adjusting screw 14, an extrusion sliding block 15, and a sealing rubber strip 16. The combustion chamber body 1 is provided with an opening on the front surface, and the inner wall of the opening of the combustion chamber body 1 is installed with the access door 2. The ignition device 3 is installed on the surface of the cavity of the combustion chamber body 1. The tail gas inlet 4 is installed on the upper end side surface of the combustion chamber body 1. The combustion chamber body 1 is in rotary connection with the access door 2. The tail gas inlet 4 is in communication with the lower end side surface of the gas inlet treatment box 9. When using the device, the tail gas is introduced into the gas inlet treatment box 9 through the feed pipeline 10, and the large particle impurities are filtered through the filter cloth bag 11, and then the fine impurities are adsorbed and removed through the activated carbon support plate 13.

[0031] The upper end of the combustion chamber body 1 is fixedly connected with a heat exchange chamber 5, the inner wall of the cavity of the heat exchange chamber 5 is fixedly connected with a heat exchange plate body 6, the heat exchange chamber 5 is fixedly connected with a heat conduction oil pipeline 7, the side surface of the heat exchange chamber 5 is penetratedly installed with a tail gas discharge port 8, the heat exchange chamber 5 is communicated with the combustion chamber body 1, the heat exchange chamber 5 is designed in a long strip shape, the heat conduction oil pipeline 7 is designed in a serpentine shape, and the heat conduction oil pipeline 7 penetrates the surface of the heat exchange plate body 6, the filtered and cleaned tail gas is introduced into the combustion chamber body 1 from the tail gas inlet 4, so that the ignition device 3 burns the tail gas, the high-temperature flue gas generated by processing is guided to the heat exchange plate body 6 by the heat exchange chamber 5, the heat exchange plate body 6 transmits the heat of the flue gas to the heat conduction oil pipeline 7, the heat conduction oil in the heat conduction oil pipeline 7 is heated for the heating requirement in the production of isobutylbenzene, the energy utilization efficiency is improved, and the flue gas after cooling is discharged from the tail gas discharge port 8, the thermal load of the environment is reduced.

[0032] The side surface of the combustion chamber body 1 is provided with an air inlet treatment box 9, the upper end side surface of the air inlet treatment box 9 is fixedly connected with a feeding pipeline 10, the filtering mechanism comprises a filter cloth bag 11, the filter cloth bag 11 is fixedly connected to the inner wall of the cavity of the air inlet treatment box 9, the lower end side surface of the air inlet treatment box 9 is penetratedly installed with an active carbon supporting plate 13, one end of the active carbon supporting plate 13 is fixedly connected with a limiting clamping block 12, the side surface of the air inlet treatment box 9 is installed with an adjusting screw rod 14, the outer surface of the adjusting screw rod 14 is installed with an extrusion sliding block 15, the inner wall of the cavity of the air inlet treatment box 9 is provided with a baffle, and the lower surface of the baffle of the air inlet treatment box 9 is fixedly connected with a sealing rubber strip 16, when it is needed to dismount the active carbon supporting plate 13 for maintenance, the extrusion sliding block 15 is driven to slide downward by rotating the active carbon supporting plate 13, so that the limiting clamping block 12 is loosened by the extrusion sliding block 15, then the active carbon supporting plate 13 is extracted by pulling the limiting clamping block 12, and the convenience of maintaining the active carbon supporting plate 13 of the device is improved.

[0033] The cavity of the air inlet treatment box 9 is provided with a filtering mechanism, which removes impurities through the filtering cloth bag 11 and is fixed by pushing the limiting clamping block 12 and the activated carbon supporting plate 13 by the extrusion sliding block 15, the filtering cloth bag 11 is above the activated carbon supporting plate 13, the activated carbon supporting plate 13 is limited by the baffle in the air inlet treatment box 9, the lower end side surface of the limiting clamping block 12 is inclined, the adjusting screw 14 is rotationally connected with the air inlet treatment box 9, the adjusting screw 14 is threadedly connected with the extrusion sliding block 15, the extrusion sliding block 15 is slidingly connected with the air inlet treatment box 9, the upper end of the extrusion sliding block 15 is arc-shaped, and the upper surface of the activated carbon supporting plate 13 is provided with a groove corresponding to the sealing rubber strip 16, after the activated carbon supporting plate 13 is replaced, the activated carbon supporting plate 13 is inserted into the air inlet treatment box 9 again, the baffle of the air inlet treatment box 9 limits the activated carbon supporting plate 13, the extrusion sliding block 15 is driven to rise by rotating the adjusting screw 14, the arc-shaped surface of the extrusion sliding block 15 pushes the inclined surface of the limiting clamping block 12, the fastening of the limiting clamping block 12 and the activated carbon supporting plate 13 is increased, and the activated carbon supporting plate 13 is pushed against the sealing rubber strip 16, and the sealing property of the activated carbon supporting plate 13 is increased.

[0034] Working principle: when the waste heat recovery type TO furnace for tail gas treatment is used, first, the tail gas is introduced into the air inlet treatment box 9 through the feeding pipeline 10, so that the filtering cloth bag 11 and the activated carbon supporting plate 13 filter and clean the tail gas, the tail gas is introduced into the combustion chamber body 1 through the tail gas inlet 4, the tail gas is ignited by the ignition device 3, high-temperature flue gas is introduced into the heat exchange chamber 5, the heat exchange plate body 6 heats the heat conducting oil in the heat conducting oil pipeline 7 by heat conduction, and finally the flue gas is discharged from the tail gas outlet 8, the extrusion sliding block 15 is driven to descend by rotating the adjusting screw 14, the limiting clamping block 12 is loosened and the activated carbon supporting plate 13 is disassembled, the activated carbon supporting plate 13 is inserted again and abuts against the sealing rubber strip 16, and the sealing property is improved, and the practicability of the whole is improved.

[0035] 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, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A waste heat recovery type TO furnace for tail gas treatment, comprising a combustion chamber body (1) provided with an opening at the front surface, and a maintenance door (2) mounted on the inner wall of the opening of the combustion chamber body (1), characterized in that: The combustion chamber body (1) is hollowly mounted with a ignition device (3), the upper end side surface of the combustion chamber body (1) is mounted with a tail gas inlet (4), the upper end of the combustion chamber body (1) is fixedly connected with a heat exchange chamber (5), the inner wall of the heat exchange chamber (5) is fixedly connected with a heat exchange plate body (6), the heat exchange chamber (5) is fixedly connected with a heat conducting oil pipeline (7), the side surface of the heat exchange chamber (5) is penetratedly mounted with a tail gas outlet (8), the side surface of the combustion chamber body (1) is provided with an air inlet treatment box (9), the upper end side surface of the air inlet treatment box (9) is fixedly connected with a feeding pipeline (10), the cavity of the air inlet treatment box (9) is provided with a filtering mechanism which removes impurities by a filtering cloth bag (11) and is fixed by extruding a sliding block (15) to push a limiting clamping block (12) and an activated carbon supporting plate (13).

2. The waste heat recovery type TO furnace for exhaust gas treatment according to claim 1, characterized by: The combustion chamber body (1) is rotatably connected with the access door (2), and the tail gas inlet (4) is communicated with the lower end side surface of the air inlet treatment box (9).

3. The waste heat recovery TO furnace for tail gas treatment according to claim 1, characterized in that: The heat exchange chamber (5) is communicated with the combustion chamber body (1), the heat exchange chamber (5) is designed in a long strip shape, the heat conducting oil pipeline (7) is designed in a serpentine shape, and the heat conducting oil pipeline (7) penetrates the surface of the heat exchange plate body (6).

4. The waste heat recovery TO furnace for tail gas treatment according to claim 1, characterized in that: The filtering mechanism comprises the filtering cloth bag (11) which is fixedly connected to the inner wall of the cavity of the air inlet treatment box (9), the activated carbon supporting plate (13) which is penetratedly mounted on the lower end side surface of the air inlet treatment box (9) and has one end fixedly connected with the limiting clamping block (12), the adjusting screw rod (14) which is mounted on the side surface of the air inlet treatment box (9), the extruding sliding block (15) which is mounted on the outer surface of the adjusting screw rod (14), and the baffle which is arranged on the inner wall of the cavity of the air inlet treatment box (9) and has the lower surface fixedly connected with the sealing rubber strip (16).

5. A waste heat recovery TO furnace for tail gas treatment according to claim 4, characterized in that: The filtering cloth bag (11) is located above the activated carbon supporting plate (13), and the activated carbon supporting plate (13) is limited by the baffle of the inner wall of the air inlet treatment box (9).

6. A waste heat recovery TO furnace for tail gas treatment according to claim 4, characterized in that: The lower end side surface of the limiting clamping block (12) is designed to be inclined, the adjusting screw rod (14) is rotatably connected with the air inlet treatment box (9), and the adjusting screw rod (14) is threadedly connected with the extruding sliding block (15).

7. The waste heat recovery TO furnace for tail gas treatment according to claim 4, characterized in that: The extruding sliding block (15) is slidably connected with the air inlet treatment box (9), the upper end of the extruding sliding block (15) is designed to be arc-shaped, and the upper surface of the activated carbon supporting plate (13) is provided with a groove corresponding to the sealing rubber strip (16).

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