CN215983987U - Heating device, reaction furnace assembly and sulfur-containing waste treatment system - Google Patents
Heating device, reaction furnace assembly and sulfur-containing waste treatment system Download PDFInfo
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- CN215983987U CN215983987U CN202121481507.5U CN202121481507U CN215983987U CN 215983987 U CN215983987 U CN 215983987U CN 202121481507 U CN202121481507 U CN 202121481507U CN 215983987 U CN215983987 U CN 215983987U
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Abstract
The utility model discloses a heating device, a reaction furnace assembly and a sulfur-containing waste treatment system, wherein the heating device comprises a heating shell (110) and an electric heating mechanism; the heating shell (110) is internally provided with a heating chamber (111), the heating shell (110) is provided with a heating gas inlet (112) and a heating gas outlet (113) which are respectively communicated with the heating chamber (111), the heating gas inlet (112) is used for being communicated with an external gas source (300), and the heating gas outlet (113) is used for being communicated with a hearth (210) of the reaction furnace assembly; the electro-thermal mechanism is configured to be able to raise the temperature inside the heating chamber (111). The heating device can improve the combustion efficiency of the reaction furnace assembly and reduce the operation cost of the sulfur-containing waste treatment system.
Description
Technical Field
The utility model relates to the technical field of sulfur-containing waste treatment, in particular to a heating device, a reaction furnace assembly and a sulfur-containing waste treatment system.
Background
Concentrated sulfuric acid is widely used as a catalyst in petrochemical and organic synthesis industries, and a large amount of waste sulfuric acid is produced in the process. Some organic synthesis processes, such as the synthesis of Methyl Methacrylate (MMA) and Acrylonitrile (AN), produce about 30 wt% to 45 wt% waste ammonium sulfate in addition to waste sulfuric acid. These sulfur-containing wastes cause serious environmental pollution, and therefore it is necessary to purify and recycle industrial waste acids and sulfur-containing waste liquids as much as possible.
The method for treating the sulfur-containing waste mainly comprises high-temperature concentration, solvent extraction, alkali neutralization, chemical oxidation, high-temperature combustion cracking and the like. At present, although the high-temperature combustion method is thorough and clean, the high-temperature combustion method has the problems of low combustion efficiency and high operation cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the problems in the prior art and provide a heating device, a reaction furnace assembly and a sulfur-containing waste treatment system.
In order to achieve the above object, the present invention provides a heating apparatus including a heating case and an electric heating mechanism; the heating shell is internally provided with a heating chamber, the heating shell is provided with a heating gas inlet and a heating gas outlet which are respectively communicated with the heating chamber, the heating gas inlet is used for being communicated with an external gas source, and the heating gas outlet is used for being communicated with a hearth of the reaction furnace assembly; the electro-thermal mechanism is configured to be capable of elevating a temperature inside the heating chamber.
Optionally, the electric heating mechanism comprises a resistance wire arranged in the heating chamber.
Optionally, the number of the resistance wires is multiple.
Optionally, the electric heating mechanism is configured to be capable of frequency conversion for temperature control, and the temperature control range is 0-650 ℃.
Optionally, the resistance wire is coiled into a helical structure.
According to the technical scheme, the heating gas inlet is communicated with an external gas source, the heating gas outlet is communicated with a hearth of the reaction furnace assembly, and the electric heating mechanism is configured to be capable of increasing the temperature inside the heating chamber, so that the temperature of combustion air from the gas source can be increased when the combustion air passes through the heating device provided by the utility model, the temperature of the combustion air entering the hearth can reach 600-650 ℃, and the combustion efficiency of mixed gas of the reaction furnace assembly is improved.
The utility model also provides a reaction furnace assembly, which comprises a reaction furnace body and the heating device; the reaction furnace body comprises a hearth for performing combustion reaction on the sulfur-containing waste mixed liquid, the reaction furnace body is provided with a fuel gas inlet and a process gas outlet which are communicated with the hearth, and the fuel gas inlet is configured to be capable of providing fuel gas into the hearth; and a heating gas outlet of the heating device is communicated with the hearth to provide combustion air into the hearth.
Optionally, the furnace is a cylindrical structure, the fuel gas inlet and the process gas outlet are arranged at two ends of the furnace at intervals along the axial direction of the furnace, and the fuel gas inlet is configured to be capable of providing fuel gas flowing along the axial direction of the furnace into the furnace; the reaction furnace body is provided with a first combustion-supporting air inlet and a second combustion-supporting air inlet which are communicated with the hearth, the first combustion-supporting air inlet and the second combustion-supporting air inlet are communicated with the heating gas outlet and are configured to be capable of respectively providing combustion-supporting air for the hearth along the tangential direction of the hearth, and the flow direction of the combustion-supporting air provided by the first combustion-supporting air inlet is the same as that of the combustion-supporting air provided by the second combustion-supporting air inlet.
Optionally, a heating housing of the heating device is fixedly disposed on an outer wall of the reaction furnace body, and the heating gas outlet is disposed corresponding to the first combustion air inlet and the second combustion air inlet, respectively.
Optionally, one of the first combustion air inlets and one of the second combustion air inlets are a combustion air inlet group, the reaction furnace body includes a plurality of combustion air inlet groups, and the plurality of combustion air inlet groups are arranged at intervals along the axial direction of the furnace.
Optionally, the number of the heating devices is the same as that of the combustion air inlet groups, and the heating gas outlets of the plurality of heating devices are in one-to-one correspondence communication with the plurality of combustion air inlet groups.
The utility model also provides a sulfur-containing waste treatment system, which comprises a converter and the reaction furnace assembly, wherein a process gas outlet of the reaction furnace assembly is used for providing process gas for the converter, and a catalyst used for reacting with the process gas is arranged in the converter.
The sulfur-containing waste treatment system has the same advantages as the heating device and the reaction furnace assembly compared with the prior art, and the details are not repeated.
Additional features and advantages of the utility model will be set forth in the detailed description which follows.
Drawings
FIG. 1 is a schematic structural view of one embodiment of a heating apparatus of the present invention;
FIG. 2 is a schematic view of one embodiment of a reactor assembly of the present invention;
FIG. 3 is a side view of the reaction furnace body of the present invention;
FIG. 4 is a front view of the reaction furnace body of the present invention;
figure 5 is a schematic diagram of one embodiment of the sulfur-containing waste treatment system of the present invention.
Description of the reference numerals
110-heating shell, 111-heating chamber, 112-heating gas inlet, 113-heating gas outlet, 120-resistance wire,
200-a reaction furnace body, 210-a hearth, 220-a fuel gas inlet, 230-a process gas outlet, 241-a first combustion air inlet, 242-a second combustion air inlet,
300-a gas source, wherein the gas source is,
400-a liquid spray gun for spraying a liquid,
500-a converter, wherein the converter is connected with a power supply,
600-cyclone filter
Detailed Description
The following detailed description of embodiments of the utility model refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
As shown in fig. 1, the heating device of the present invention includes a heating case 110 and an electric heating mechanism; the heating shell 110 is internally provided with a heating chamber 111, the heating shell 110 is provided with a heating gas inlet 112 and a heating gas outlet 113 which are respectively communicated with the heating chamber 111, the heating gas inlet 112 is used for being communicated with an external gas source 300, and the heating gas outlet 113 is used for being communicated with a hearth 210 of the reaction furnace assembly; the electro-thermal mechanism is configured to be able to raise the temperature inside the heating chamber 111.
In the utility model, the heating gas inlet 112 is communicated with the gas source 300, the heating gas outlet 113 is communicated with the hearth 210 of the reaction furnace assembly, and the electric heating mechanism can increase the temperature inside the heating chamber 111, so that the temperature of the combustion air from the gas source 300 can be increased when the combustion air passes through the heating device of the utility model, so that the temperature of the combustion air entering the hearth 210 can reach 600-650 ℃, and the combustion efficiency of the mixed gas of the reaction furnace assembly is further improved.
It should be understood that the electric heating mechanism may take various forms, for example, the electric heating mechanism may include a resistance wire disposed in an outer wall of the heating housing 110 or a wall of the heating housing 110, and the heating chamber 111 is indirectly heated by the resistance wire, and in order to further improve the heating efficiency, in one embodiment of the present invention, the electric heating mechanism includes a resistance wire 120 disposed in the heating chamber 111, and the heating efficiency is greatly improved by disposing the resistance wire 120 inside the heating chamber 111 such that the combustion air directly contacts the resistance wire 120.
In order to further improve the heating efficiency of the electric heating mechanism, in one embodiment of the present invention, the number of the resistance wires 120 is plural, and the resistance wires 120 are wound in a spiral structure.
The utility model also provides a reaction furnace assembly, as shown in fig. 2 to 4, the reaction furnace assembly comprises a reaction furnace body 200 and the heating device; the reaction furnace body 200 comprises a hearth 210 for performing a combustion reaction on the sulfur-containing waste mixed liquor, the reaction furnace body 200 is provided with a fuel gas inlet 220 and a process gas outlet 230 which are communicated with the hearth 210, and the fuel gas inlet 220 is configured to be capable of providing fuel gas into the hearth 210; the heating gas outlet 113 of the heating device communicates with the furnace 210 to provide combustion air into the furnace 210.
Further, the reaction furnace assembly can further comprise an air source 300, a heating air inlet 112 of the heating device is communicated with the air source 300, and the reaction furnace assembly comprises the heating device, so that the temperature of combustion air of the air source 300 is increased when the combustion air passes through the heating device, the temperature of the combustion air entering the hearth 210 can reach 600-650 ℃, and the combustion efficiency of the mixed gas is improved.
Further, the furnace 210 is a cylindrical structure, the fuel gas inlet 220 and the process gas outlet 230 are arranged at two ends of the furnace 210 at intervals along the axial direction of the furnace 210, and the fuel gas inlet 220 is configured to provide fuel gas flowing along the axial direction of the furnace 210 into the furnace 210; the reaction furnace body 200 is provided with a first combustion air inlet 241 and a second combustion air inlet 242 which are communicated with the furnace 210, the first combustion air inlet 241 and the second combustion air inlet 242 are both communicated with the heating gas outlet 113 and are configured to be capable of respectively providing combustion air to the furnace 210 along the tangential direction of the furnace 210, and the flow direction of the combustion air provided by the first combustion air inlet 241 is the same as the flow direction of the combustion air provided by the second combustion air inlet 242.
Since the first and second combustion air inlets 241 and 242 are opened along the tangential direction of the inner wall of the reaction furnace body 200 (i.e., the tangential direction of the furnace 210), the combustion air ejected from the first and second combustion air inlets 241 and 242 can flow along the circumferential direction of the inner wall of the furnace 210, so that the mixed gas of the fuel gas and the combustion air flows toward the process gas outlet 230 in a spiral form (as shown in fig. 3), and therefore, the residence time of the mixed gas in the furnace 210 during the spiral form flow can be more sufficient, the mixed gas can be sufficiently reacted with the mixed liquid of the sulfur-containing waste, and the combustion efficiency of the reaction furnace body 200 can be improved, and the distance between the fuel gas inlet 220 and the process gas outlet 230 can be relatively shortened because the mixed gas can be retained in the furnace 210 for a longer time, so that the reaction furnace body 200 of the present invention can be miniaturized.
In order to facilitate the miniaturization of the whole reaction furnace assembly, in an embodiment of the present invention, the heating housing 110 of the heating device is fixedly disposed on the outer wall of the reaction furnace body 200, and the heating gas outlet 113 is disposed corresponding to the first combustion air inlet 241 and the second combustion air inlet 242, respectively, so that the heating device and the reaction furnace body 200 are more compact, and the heating device can be supported more stably.
For convenience of illustration, a first combustion air inlet 241 and a second combustion air inlet 242 are used as a combustion air inlet group, but of course, the combustion air inlet group may include not only the first combustion air inlet 241 and the second combustion air inlet 242, but also a third combustion air inlet, a fourth combustion air inlet, etc., which are all located in the same radial plane of the furnace 210 and are all opened along the same direction, i.e., clockwise or counterclockwise, so as to ensure that the mixed gas forms a spiral flow pattern in the furnace 210.
In order to provide combustion air more sufficiently, in one embodiment of the present invention, as shown in fig. 3, the reaction furnace body 200 includes a plurality of combustion air inlet groups, and the plurality of combustion air inlet groups are arranged at intervals along the axial direction of the furnace 210.
In order to better regulate and control the temperature of the combustion air entering the furnace 210, in an embodiment of the present invention, the number of the heating devices is the same as the number of the combustion air inlet groups, and the heating gas outlets 113 of the plurality of heating devices are in one-to-one correspondence with the plurality of combustion air inlet groups, that is, the heating stability of different heating devices can be respectively controlled according to the requirement, so as to achieve the purpose of respectively controlling the temperature of the combustion air at the plurality of combustion air inlet groups.
In order to facilitate production and maintenance as much as possible, in one embodiment of the present invention, the first combustion air inlet 241 and the second combustion air inlet 242 are symmetrically arranged with respect to the axis of the furnace 210. This arrangement enables the combustion air injected into the furnace 210 through the first combustion air inlet 241 to be accelerated while passing through the second combustion air inlet 242, thereby securing a flow velocity when the combustion air flows in a circumferential direction.
It should be noted that, in one embodiment of the present invention, as shown in fig. 3 and 4, the opening direction of the first combustion air inlet 241 and the opening direction of the second combustion air inlet 242 are both perpendicular to the axial direction of the furnace 210, that is, the flowing direction of the fuel gas is perpendicular to the plane formed by the flowing direction of the combustion air. In another embodiment of the present invention, the opening direction of the first combustion air inlet 241 and the opening direction of the second combustion air inlet 242 are both inclined toward the fuel gas inlet 220, which provides the advantage that the flow direction of the combustion air entering the furnace 210 is opposite to the flow direction of the fuel gas, so that the combustion air and the fuel gas can be mixed more sufficiently, the flow speed of the mixed gas is reduced, the flow time of the mixed gas in the furnace 210 is further increased, and the volume of the reactor body 200 can be further miniaturized. Of course, the opening direction of the first combustion air inlet 241 and the opening direction of the second combustion air inlet 242 only need to be slightly inclined toward the fuel gas inlet 220, and may be inclined toward the fuel gas inlet 220 by 20 to 40 degrees, for example.
In order to be able to further increase the combustion efficiency, in an embodiment of the present invention, the combustion air inlet set is configured to be able to adjust the gas flow rate of the combustion air provided to the furnace 210, that is, to achieve the purpose of adjusting and increasing the combustion efficiency by adjusting the ratio of the combustion air and the fuel gas.
In order to enable the sulfur-containing waste mixed liquor to be more sufficiently mixed with the mixed gas, so that the combustion is more sufficient and thorough, in an embodiment of the present invention, the reaction furnace assembly further includes a liquid spray gun 400, and the liquid spray gun 400 is configured to sufficiently atomize the sulfur-containing waste mixed liquor, so as to provide the atomized sulfur-containing waste mixed liquor into the hearth 210.
Through the design of the reaction furnace body 200, the heating device and the liquid spray gun 400 in the above embodiment, the reaction furnace assembly of the present invention can greatly improve the combustion efficiency, and at the same time, the reaction furnace body 200 can be miniaturized as much as possible, and the operation cost can be reduced.
As shown in fig. 5, the present invention further provides a sulfur-containing waste treatment system, which includes a converter and the above-mentioned reaction furnace assembly, wherein the process gas outlet 230 of the reaction furnace body 200 is used for providing the process gas to the converter 500, and the converter 500 is internally provided with a catalyst for reacting with the process gas.
The process gas is sufficiently converted while passing through the converter 500 such that the process gas after finally passing through the absorption tower achieves SO2The concentration is less than or equal to 50mg/M3The concentration of NOx is less than or equal to 100mg/M3Acid mist is less than or equal to 5mg/M3The concentration of the particles is less than or equal to 30mg/M3。
Further, in an embodiment of the present invention, the sulfurous waste treatment system may further include a cyclone filter 600 disposed between the process gas outlet 230 and the converter 500, the cyclone filter 600 for removing metallic dust from the process gas discharged from the process gas outlet 230.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the utility model, many simple modifications may be made to the technical solution of the utility model, and in order to avoid unnecessary repetition, various possible combinations of the utility model will not be described further. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.
Claims (10)
1. A heating device, characterized in that the heating device comprises a heating housing (110) and an electric heating mechanism;
the heating shell (110) is internally provided with a heating chamber (111), the heating shell (110) is provided with a heating gas inlet (112) and a heating gas outlet (113) which are respectively communicated with the heating chamber (111), the heating gas inlet (112) is used for being communicated with an external gas source (300), and the heating gas outlet (113) is used for being communicated with a hearth (210) of the reaction furnace assembly;
the electro-thermal mechanism is configured to be able to raise the temperature inside the heating chamber (111).
2. The heating device according to claim 1, characterized in that the electro-thermal mechanism comprises a resistance wire (120) arranged in the heating chamber (111).
3. The heating device according to claim 2, characterized in that the number of resistance wires (120) is multiple.
4. The heating device of claim 2, wherein the electric heating mechanism is configured to be capable of frequency conversion temperature control, and the temperature control range is 0-650 ℃.
5. The heating device according to any one of claims 2-4, wherein the resistance wire (120) is coiled in a helical configuration.
6. A reactor assembly, characterized in that it comprises a reactor body (200) and a heating device according to any one of claims 1 to 5;
the reaction furnace body (200) comprises a hearth (210) for performing a combustion reaction on the sulfur-containing waste mixed liquor, the reaction furnace body (200) is provided with a fuel gas inlet (220) and a process gas outlet (230) which are communicated with the hearth (210), and the fuel gas inlet (220) is configured to be capable of providing fuel gas into the hearth (210);
the heating gas outlet (113) of the heating device is communicated with the hearth (210) to provide combustion air into the hearth (210).
7. The reactor assembly as claimed in claim 6, wherein the furnace (210) is a cylindrical structure, the fuel gas inlet (220) and the process gas outlet (230) are arranged at two ends of the furnace (210) at intervals along the axial direction of the furnace (210), and the fuel gas inlet (220) is configured to supply fuel gas flowing along the axial direction of the furnace (210) into the furnace (210);
the reaction furnace body (200) is provided with a first combustion air inlet (241) and a second combustion air inlet (242) which are communicated with the furnace chamber (210), the first combustion air inlet (241) and the second combustion air inlet (242) are both communicated with the heating gas outlet (113) and are configured to be capable of respectively providing combustion air for the furnace chamber (210) along the tangential direction of the furnace chamber (210), and the flow direction of the combustion air provided by the first combustion air inlet (241) is the same as that of the combustion air provided by the second combustion air inlet (242).
8. The reactor assembly according to claim 7, wherein the heating housing (110) of the heating device is fixedly disposed on an outer wall of the reactor body (200), and the heating gas outlet (113) is disposed corresponding to the first combustion air inlet (241) and the second combustion air inlet (242), respectively.
9. The reactor assembly as claimed in claim 7 or 8, wherein one of the first combustion air inlets (241) and one of the second combustion air inlets (242) are a combustion air inlet group, and the reactor body (200) includes a plurality of the combustion air inlet groups, and the combustion air inlet groups are arranged at intervals along an axial direction of the furnace chamber (210).
10. A sulfur-containing waste treatment system comprising a converter (500) and the reactor assembly of any one of claims 6-9, wherein the process gas outlet (230) of the reactor assembly is adapted to provide process gas to the converter (500), and wherein a catalyst is disposed within the converter (500) for reacting with the process gas.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121481507.5U CN215983987U (en) | 2021-06-30 | 2021-06-30 | Heating device, reaction furnace assembly and sulfur-containing waste treatment system |
| PCT/CN2021/125714 WO2022083737A1 (en) | 2020-10-23 | 2021-10-22 | Reactor assembly, sulfur-containing waste treatment system, method for burning sulfur-containing waste, and method for making sulfuric acid by regenerating sulfur-containing waste |
| JP2023524681A JP2023547861A (en) | 2020-10-23 | 2021-10-22 | Reactor assembly, sulfur-containing waste treatment system, method of combustion of sulfur-containing waste, and method of producing sulfuric acid by regenerating sulfur-containing waste |
| CA3199289A CA3199289A1 (en) | 2020-10-23 | 2021-10-22 | Reactor assembly, sulfur-containing waste treatment system, method for burning sulfur-containing waste, and method for making sulfuric acid by regenerating sulfur-containing waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121481507.5U CN215983987U (en) | 2021-06-30 | 2021-06-30 | Heating device, reaction furnace assembly and sulfur-containing waste treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215983987U true CN215983987U (en) | 2022-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121481507.5U Active CN215983987U (en) | 2020-10-23 | 2021-06-30 | Heating device, reaction furnace assembly and sulfur-containing waste treatment system |
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| Country | Link |
|---|---|
| CN (1) | CN215983987U (en) |
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2021
- 2021-06-30 CN CN202121481507.5U patent/CN215983987U/en active Active
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Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Patentee after: SINOPEC NANJING CHEMICAL RESEARCH INSTITUTE Co.,Ltd. Address before: 210048 Jiangsu Province, Nanjing city Liuhe District Dachang geguan Road No. 699 Patentee before: SINOPEC NANJING CHEMICAL RESEARCH INSTITUTE Co.,Ltd. Patentee before: CHINA PETROLEUM & CHEMICAL Corp. |
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