CN217584867U - Indirect heating type hot blast stove applied to RTO inlet - Google Patents
Indirect heating type hot blast stove applied to RTO inlet Download PDFInfo
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- CN217584867U CN217584867U CN202221042735.7U CN202221042735U CN217584867U CN 217584867 U CN217584867 U CN 217584867U CN 202221042735 U CN202221042735 U CN 202221042735U CN 217584867 U CN217584867 U CN 217584867U
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Abstract
The utility model discloses an indirect heating formula hot-blast furnace for RTO entry, the hot-blast furnace structurally include combustor, fire protection bucket, mixed flow case, circulating fan, heat exchanger and exhaust fan, wherein the combustor burns in fire protection bucket, and combustor and fire protection bucket set up in mixed flow bottom of the case portion, be equipped with circulating fan and circulation wind path in the mixed flow case, the heat exchanger is installed on mixed flow case, and is located the circulation wind path of mixed flow case, and the one end of heat exchanger is connected with the pipeline that transports industrial waste gas, and the other end is connected with the entry of RTO system, the exhaust fan sets up in mixed flow bottom of the case portion for draw unnecessary combustion-supporting wind in the hot-blast furnace and use as RTO blowing wind; the utility model discloses composite structure is simple feasible, when promoting the entry temperature, owing to be with the internal circulation wind heating technology waste gas, can not produce the gas to the hot-blast furnace corruption, also can not produce the chance that hydrogen halide and amine combine, just also can not form the problem to RTO pottery jam.
Description
Technical Field
The utility model relates to a thermodynamic equipment technical field is an indirect heating formula hot-blast furnace who is applied to RTO entry particularly.
Background
The RTO system is also called a heat accumulating type thermal oxidation system, is a low-concentration organic waste gas treatment system with small occupied area and low operation cost, can generate a large amount of hydrogen halide after being combusted when the RTO system treats halogen-containing organic waste gas, and can seriously corrode the bottom of the RTO after the hydrogen halide is formed if the inlet temperature is lower, so the normal-temperature process waste gas from a production line needs to be heated to 80-100 ℃, no condensed water comes out, and the corrosion is reduced.
Most of the prior proposals are that high-temperature flue gas from an RTO hearth is directly mixed with inlet process waste gas to raise the temperature, but the reaction of hydrogen halide and amine after combustion can be caused to form ammonium salt for blocking ceramics; in addition, the process waste gas is preheated by using the high-temperature air heat exchanger, but hydrogen halide generated after combustion is used for a long time can corrode the high-temperature heat exchanger, and the replacement cost of the heat exchanger is higher; the third scheme is that steam heating is adopted, compared with the two schemes, the problem of contact between the hydrogen halide and the amine is really solved, but not many companies have steam, a steam pipeline belongs to a pressure pipeline, and installation needs special equipment qualification, so that inconvenience is brought.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve prior art's not enough, provide an indirect heating formula hot-blast furnace for RTO entry, can realize indirect heating, carry out even heating to the industrial waste gas that production line was come.
In order to achieve the purpose, the indirect heating type hot blast stove applied to the RTO inlet comprises a combustor, a fire protection barrel, a mixed flow box, a circulating fan and a heat exchanger, wherein the combustor burns in the fire protection barrel, the combustor and the fire protection barrel are arranged at the bottom of the mixed flow box, the circulating fan and a circulating air path are arranged in the mixed flow box, the heat exchanger is installed on the mixed flow box and located on the circulating air path of the mixed flow box, one end of the heat exchanger is connected with a pipeline for conveying industrial waste gas, and the other end of the heat exchanger is connected with an inlet of an RTO system.
The utility model discloses still include following preferred technical scheme:
preferably, the hot blast stove further comprises an exhaust fan, the exhaust fan is arranged at the bottom of the mixed flow box, and the exhaust fan leads out redundant combustion-supporting air in the hot blast stove to be used as blowing air of the RTO.
Preferably, the circulating fan blows out circulating air for mixing with high-temperature flue gas generated by a burner in the fire protection barrel in the flow mixing box to form mixed hot air.
Preferably, baffles are arranged around the fire protection barrel and used for changing the direction of circulating air so as to mix the circulating air with high-temperature flue gas generated by the burner.
Preferably, the temperature of the mixed hot air formed in the mixing box is 300 ℃.
Preferably, the place where the hot blast stove contacts with the industrial waste gas is made of stainless steel 304 or 316L.
Compared with the prior art, the utility model, its advantage lies in:
compared with the prior art, the utility model, integrated configuration is simple feasible, and its advantage lies in: the utility model discloses when promoting the entry temperature, owing to heat technology waste gas with the inside circulation wind, can not produce the gas to the hot-blast furnace corruption, can not produce the chance that hydrogen halide and amine combine yet, just can not form the problem to RTO pottery jam yet.
Drawings
Fig. 1 is a schematic flow diagram of the hot blast stove of the present invention.
In the figure: 1. the burner 2, the fire protection barrel 3, the mixed flow box 4, the circulating fan 5, the heat exchanger 6 and the exhaust fan.
Detailed Description
The above technical solution is complied with, the following provides the specific embodiments of the present invention, and the present invention is further described in detail with reference to the following embodiments.
Referring to fig. 1, for the utility model relates to an indirect heating formula hot-blast furnace for RTO entry, hot-blast furnace is structural including combustor 1, fire protection bucket 2, mixed flow case 3, circulating fan 4, heat exchanger 5 and exhaust fan 6, wherein combustor 1 burns in fire protection bucket 2, and the high temperature flue gas that combustor 1 produced can mix with the circulated air that circulating fan 4 blew off and form hot-blast about 300 ℃ in the mixed flow case, mixes and is used for heating the industrial waste gas that the production line was come in the hot-blast entering heat exchanger 5, draws combustion-supporting wind with exhaust fan 6 at last.
In the operation process, the tube side of heat exchanger 5 is walked to industrial waste gas that the production line was come, if industrial waste gas has unclean dregs, 5 tube sides of heat exchanger can clear up more easily, and the flue gas that heat exchanger 5 came out passes through circulating fan 4 reentrant mixed flow case 3, and the industrial waste gas of heating the production line circulates like this.
Wherein the temperature of industrial waste gas from the production line is 20-30 ℃, the industrial waste gas needs to be preheated to 80-100 ℃, the temperature of local flue gas is overhigh by directly using flue gas with the temperature of 850 ℃ from an RTO hearth through a high-temperature heat exchanger, the temperature exceeds the ignition point of organic waste gas, and partial waste gas is decomposed in the high-temperature heat exchanger to form hydrogen halide; the hydrogen halide in the high-temperature flue gas can be condensed in a low-temperature area of the heat exchanger due to local low temperature, so that the heat exchanger is corroded; and the utility model discloses when promoting the entry temperature, owing to heat technology waste gas with the inside loop wind, can not produce the gas to the hot-blast furnace corruption, also can not produce the chance that hydrogen halide and amine combine, just also can not form the problem that blocks up to the RTO pottery.
The above, only for the concrete implementation of this utility model, but the scope of protection of this utility model is not limited to this, and any person skilled in this technical field is in the technical scope of this utility model discloses, according to the technical scheme of this utility model and novel design add in equal replacement or change, all should be covered in the scope of protection of this utility model.
Claims (6)
1. An indirect heating type hot blast stove applied to an RTO inlet comprises a burner and a fire protection barrel, wherein the burner burns in the fire protection barrel, and the indirect heating type hot blast stove is characterized by also comprising
A circulating fan and a circulating air path are arranged in the mixed flow box,
the heat exchanger is arranged on the mixed flow box and is positioned on a circulating air path of the mixed flow box;
the burner and the fire protection barrel are arranged at the bottom of the mixed flow box, and the burner heats circulating air of the mixed flow box; one end of the heat exchanger is connected with a pipeline for conveying industrial waste gas, and the other end of the heat exchanger is connected with an inlet of the RTO system.
2. The indirect heating hot blast stove applied to an RTO inlet of claim 1, further comprising an exhaust fan, wherein the exhaust fan is arranged at the bottom of the mixed flow box, and the exhaust fan draws out excess combustion-supporting air in the hot blast stove to be used as blowing air for the RTO.
3. An indirect heating hot blast stove applied to an RTO inlet as claimed in claim 1, wherein the circulating fan blows circulating air for mixing with high temperature flue gas generated by a burner in the fire protection barrel in the flow mixing box to form mixed hot air.
4. An indirect heating hot blast stove applied to an RTO inlet as claimed in claim 1, wherein around the barrel is a baffle for changing the direction of the circulating air to mix the circulating air with the high temperature flue gas generated by the burner.
5. An indirect heating hot blast stove applied to an RTO inlet as claimed in claim 1, characterised in that the temperature of the mixed hot blast formed in the mixing box is 300 ℃.
6. An indirect heating hot blast stove applied to an RTO inlet as claimed in claim 1, wherein the hot blast stove is made of 304 or 316L stainless steel where it contacts the industrial waste gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221042735.7U CN217584867U (en) | 2022-05-05 | 2022-05-05 | Indirect heating type hot blast stove applied to RTO inlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221042735.7U CN217584867U (en) | 2022-05-05 | 2022-05-05 | Indirect heating type hot blast stove applied to RTO inlet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217584867U true CN217584867U (en) | 2022-10-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221042735.7U Active CN217584867U (en) | 2022-05-05 | 2022-05-05 | Indirect heating type hot blast stove applied to RTO inlet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217584867U (en) |
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2022
- 2022-05-05 CN CN202221042735.7U patent/CN217584867U/en active Active
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