CN111306948A - Furnace gas temperature control device, system and method for yellow phosphorus electric furnace - Google Patents
Furnace gas temperature control device, system and method for yellow phosphorus electric furnace Download PDFInfo
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- CN111306948A CN111306948A CN202010170858.8A CN202010170858A CN111306948A CN 111306948 A CN111306948 A CN 111306948A CN 202010170858 A CN202010170858 A CN 202010170858A CN 111306948 A CN111306948 A CN 111306948A
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- heat preservation
- furnace gas
- yellow phosphorus
- furnace
- electric furnace
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- OBSZRRSYVTXPNB-UHFFFAOYSA-N tetraphosphorus Chemical compound P12P3P1P32 OBSZRRSYVTXPNB-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000004321 preservation Methods 0.000 claims abstract description 88
- 239000000428 dust Substances 0.000 claims abstract description 77
- 238000009413 insulation Methods 0.000 claims abstract description 10
- 230000001105 regulatory effect Effects 0.000 claims abstract 3
- 238000005485 electric heating Methods 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000001276 controlling effect Effects 0.000 claims 1
- 238000001556 precipitation Methods 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 84
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 239000012716 precipitator Substances 0.000 description 4
- 239000003034 coal gas Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000005367 electrostatic precipitation Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0003—Monitoring the temperature or a characteristic of the charge and using it as a controlling value
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention relates to a furnace gas temperature control device of a yellow phosphorus electric furnace, a furnace gas temperature control system of the yellow phosphorus electric furnace and a furnace gas temperature control method of the yellow phosphorus electric furnace. Yellow phosphorus electric furnace burner gas temperature regulating device includes: the jacket sleeve comprises an inner pipe and a heat insulation layer sleeved outside the inner pipe, and is used for conveying furnace gas output from the yellow phosphorus electric furnace into a dry dust collector in a furnace gas dry dust collection system of the yellow phosphorus electric furnace; the heat preservation medium circulation pipeline is communicated with the heat preservation layer, and a heat preservation medium driving device and a heat tracing heater are arranged on the heat preservation medium circulation pipeline and are used for enabling the heat preservation medium to circularly flow between the heat preservation layer and the heat preservation medium circulation pipeline; a valve is arranged on the heat preservation medium circulation pipeline. By arranging the furnace gas temperature control device of the yellow phosphorus electric furnace, yellow phosphorus steam and the like in the furnace gas are prevented from phase-changing precipitation in the gas guiding process.
Description
Technical Field
The invention relates to a furnace gas temperature control device of a yellow phosphorus electric furnace, a furnace gas temperature control system of the yellow phosphorus electric furnace and a furnace gas temperature control method of the yellow phosphorus electric furnace.
Background
The existing electrothermal method yellow phosphorus production process is to carry out wet dust removal and yellow phosphorus condensation on yellow phosphorus furnace gas containing dust, phosphorus steam and coal gas by using a washing tower, and crude phosphorus obtained by condensation is refined to obtain qualified yellow phosphorus. The electric heating method yellow phosphorus electric precipitation production process aims at the existing electric heating method yellow phosphorus production process, and the electric heating method yellow phosphorus electric precipitation production process is characterized in that yellow phosphorus furnace gas containing dust, phosphorus steam and coal gas from a yellow phosphorus electric furnace is used for removing most of dust in the furnace gas by electrostatic precipitation, the furnace gas with furnace gas dust reduced is used for wet dust removal and yellow phosphorus condensation by a washing tower, and crude phosphorus obtained by condensation is refined to obtain qualified yellow phosphorus. However, in the existing dust removal process, the yellow phosphorus furnace gas may have phase change due to heat loss, so that the dust removal equipment or subsequent equipment is damaged.
Disclosure of Invention
The invention aims to provide a furnace gas temperature control device of a yellow phosphorus electric furnace, which prevents the furnace gas from phase change in the processes of conveying and dedusting the furnace gas of the yellow phosphorus electric furnace.
In order to achieve the above object, the present application adopts a technical solution that a yellow phosphorus electric furnace gas temperature control device is configured in a yellow phosphorus electric furnace gas dry dust removal system, and is used for controlling the temperature of conveyed furnace gas, wherein the yellow phosphorus electric furnace gas temperature control device comprises:
the jacket sleeve comprises an inner pipe and a heat insulation layer sleeved outside the inner pipe, and is used for conveying furnace gas output from the yellow phosphorus electric furnace into a dry dust collector in a furnace gas dry dust collection system of the yellow phosphorus electric furnace;
the heat preservation medium circulation pipeline is communicated with the heat preservation layer, and a heat preservation medium driving device and a heat tracing heater are arranged on the heat preservation medium circulation pipeline, wherein the heat preservation medium driving device is used for enabling a heat preservation medium to circularly flow between the heat preservation layer and the heat preservation medium circulation pipeline; and a valve is arranged on the heat preservation medium circulation pipeline.
By arranging the furnace gas temperature control device of the yellow phosphorus electric furnace, furnace gas output from the yellow phosphorus electric furnace is conveyed into the dry dust collector for dust removal through the inner pipe of the jacketed pipe, wherein in the conveying process, heat preservation media (controlling the temperature of the heat preservation media) flowing out of the inner pipe and in the heat preservation layer preserve heat of the furnace gas in the inner pipe, so that yellow phosphorus steam in the furnace gas is prevented from being precipitated in an equal phase change manner in the gas guiding process, meanwhile, a heat preservation media circulation pipeline is adopted for temperature control, the circulating heat preservation media are used as carriers, and a jacket manner is adopted, so that the temperature control device meets the requirement of ultrahigh temperature of the furnace gas of the electric furnace on temperature control facilities under individual.
Furthermore, the jacket sleeve comprises a dust remover jacket for sleeving or wrapping the dry dust remover and used for circulating the heat preservation medium, the dust remover jacket is communicated with the heat preservation layer, and the dust remover jacket, the heat preservation layer and the heat preservation medium circulation pipeline form a loop.
Therefore, by arranging the dust remover jacket, the furnace gas can keep stable temperature in the whole process of conveying and dust removal, and yellow phosphorus steam and the like in the furnace gas are prevented from phase change precipitation. The precipitator jacket is provided with at least one inlet and outlet.
Furthermore, the jacketed pipe comprises at least two sections which are respectively communicated with the inlet end and the outlet end of the dry dust collector; and each section of jacket pipe unit forms a loop with the heat preservation medium circulation pipeline.
Furthermore, the jacketed pipe is provided with an electric heating device positioned at the inlet end of the dry dust collector.
The jacketed pipe comprises a first section, a second section and a third section, wherein the first section is communicated with an inlet of the electric heating device, two ends of the second section are respectively communicated with an outlet of the electric heating device and an inlet of the dry dust collector, and the third section is communicated with an outlet of the dry dust collector.
Furthermore, the heat preservation medium circulation pipeline comprises a first pipeline, and the inlet and the outlet of the first pipeline are respectively communicated with the heat preservation layer of the first section to form a loop; the jacketed pipe comprises a dust remover jacket for sleeving or wrapping the dry dust remover and used for circulating a heat preservation medium; the first pipeline is provided with a first branch which is directly communicated with the dust remover jacket, and the outlet of the dust remover jacket is directly communicated with the first pipeline through an output branch.
Furthermore, the first branch is respectively communicated with the second section of the insulating layer and the third section of the insulating layer.
The furnace gas temperature control system of the yellow phosphorus electric furnace comprises the yellow phosphorus electric furnace and a dry dust collector, and also comprises the furnace gas temperature control device of the yellow phosphorus electric furnace, and the yellow phosphorus electric furnace is communicated with the dry dust collector through a jacket pipe of the furnace gas temperature control device of the yellow phosphorus electric furnace.
The temperature control method of furnace gas of the yellow phosphorus electric furnace comprises the following steps:
the furnace gas output from the yellow phosphorus electric furnace is insulated, so that the temperature drop of the furnace gas is avoided;
heating the furnace gas after heat preservation to enable the temperature of the furnace gas to be above 20 ℃, and keeping the furnace gas in an unsaturated steam state; the furnace gas at the temperature of more than 20 ℃ in the unsaturated steam state is subjected to heat preservation, so that the temperature drop of the furnace gas is avoided;
performing dry dust removal on furnace gas and preserving the heat of the furnace gas by adopting a jacket which is arranged outside a dry dust remover and internally circulates a heat preservation medium;
and preserving the heat of the furnace gas after dust removal to ensure that the temperature of the furnace gas does not drop and the furnace gas is discharged.
Specifically, when furnace gas is conveyed, the heat preservation is carried out by arranging a jacket pipe on the conveying channel and conveying a circulating heat preservation medium to a heat preservation layer in the jacket pipe.
The invention is further described with reference to the following figures and detailed description. Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description. Or may be learned by practice of the invention.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to assist in understanding the invention, and are included to explain the invention and their equivalents and not limit it unduly. In the drawings:
FIG. 1 is a schematic view for explaining a furnace gas temperature control system of the yellow phosphorus electric furnace;
the labels in the figure are: the device comprises a yellow phosphorus electric furnace 1, a jacketed pipe 2, a first section 201 of the jacketed pipe, a second section 202 of the jacketed pipe, a third section 203 of the jacketed pipe, an inner pipe 210, a heat insulation layer 220, a dust remover jacket 221, an electric heating device 3, a dry dust remover 4, a power fan 5, a heat insulation medium circulation pipeline 6, a first pipeline 601, a second pipeline 602, a third pipeline 603, a side pipe 604, a first branch 605, a second branch 606, a heat tracing circulation fan 610 and a heat tracing heater 620.
Detailed Description
The invention will be described more fully hereinafter with reference to the accompanying drawings. Those skilled in the art will be able to implement the invention based on these teachings. Before the present invention is described in detail with reference to the accompanying drawings, it is to be noted that:
the technical solutions and features provided in the present invention in the respective sections including the following description may be combined with each other without conflict.
Moreover, the embodiments of the present invention described in the following description are generally only examples of a part of the present invention, and not all examples. Therefore, all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort shall fall within the protection scope of the present invention.
With respect to terms and units in the present invention. The term "comprises" and any variations thereof in the description and claims of this invention and the related sections are intended to cover non-exclusive inclusions.
The embodiment adopts a furnace gas temperature control method of a yellow phosphorus electric furnace, which comprises the following steps:
the furnace gas output from the yellow phosphorus electric furnace 1 is subjected to heat preservation, so that the temperature drop of the furnace gas is avoided; the mode of a jacketed pipe 2 is adopted to carry out heat preservation on the conveyed furnace gas;
heating the furnace gas after heat preservation by using the heat preservation layer of the jacketed pipe 2 to enable the furnace gas to be at a temperature of more than 20 ℃, and keeping the furnace gas in an unsaturated steam state; meanwhile, the furnace gas at the temperature of more than 20 ℃ in the unsaturated steam state is subjected to heat preservation, so that the temperature drop of the furnace gas is avoided;
performing dry dust removal on the furnace gas and preserving the heat of the furnace gas by adopting a jacket which is arranged outside the dry dust remover 4 and internally circulates a heat preservation medium;
and preserving the heat of the furnace gas after dust removal to ensure that the temperature of the furnace gas does not drop and the furnace gas is discharged.
Referring to fig. 1, the yellow phosphorus electric furnace gas temperature control device is configured in a yellow phosphorus electric furnace gas dry dedusting system and used for controlling the temperature of conveyed furnace gas, and the yellow phosphorus electric furnace gas temperature control device comprises:
the double-layered sleeve 2 comprises an inner pipe 210 and a heat insulation layer 220 sleeved outside the inner pipe 210, and the double-layered sleeve 2 is used for conveying furnace gas output from the yellow phosphorus electric furnace 1 into a dry dust collector 4 in a furnace gas dry dust removal system of the yellow phosphorus electric furnace 1;
a heat-insulating medium circulation pipeline 6, the heat-insulating medium circulation pipeline 6 being communicated with the heat-insulating layer 220, the heat-insulating medium circulation pipeline 6 being provided with a heat-insulating medium drive device for circulating the heat-insulating medium between the heat-insulating layer 220 and the heat-insulating medium circulation pipeline 6 and a heat tracing heater 620 for controlling the temperature of the heat-insulating medium; the heat preservation medium circulation pipeline 6 is provided with a valve. The heat preservation medium can adopt nitrogen, and the heat preservation medium driving device is a heat tracing circulating fan 610.
The furnace gas temperature control system is applied to a furnace gas temperature control system of a yellow phosphorus electric furnace in implementation, and comprises a yellow phosphorus electric furnace 1 and a dry dust collector 4, and the furnace gas temperature control system of the yellow phosphorus electric furnace also comprises the furnace gas temperature control device of the yellow phosphorus electric furnace, wherein the yellow phosphorus electric furnace 1 is communicated with the dry dust collector 4 through a jacket 2 of the furnace gas temperature control device of the yellow phosphorus electric furnace.
Furnace gas is output from the yellow phosphorus electric furnace 1 and then enters the jacketed pipe 2, the furnace gas is conveyed from the inner pipe 210 in the jacketed pipe 2 to the dry dust collector 4 for dust removal, the furnace gas is filtered by the dry dust collector 4 and then is discharged by the power fan 5, wherein the heat preservation medium is conveyed into the heat preservation layer 220 by the heat preservation medium circulation pipeline 6 under the heating of the heat tracing heater 620, the heat preservation medium circularly flows between the heat preservation layer 220 and the heat preservation medium circulation pipeline 6, and the conveying temperature of the furnace gas is ensured to be within a preset range. Yellow phosphorus steam and the like in the furnace gas are prevented from phase-changing precipitation in the gas guiding process, meanwhile, the temperature is controlled by adopting a heat-insulating medium circulating pipeline 6, a circulating heat-insulating medium is used as a carrier, and the process is carried out in a jacket mode so as to meet the requirement of ultrahigh temperature of the furnace gas discharged from the electric furnace on temperature-resistant facilities under individual conditions.
The jacketed pipe 2 comprises a dust collector jacket 221 for circulating a heat preservation medium for sheathing or enveloping the dry dust collector 4, the dust collector jacket 221 is communicated with the heat preservation layer 220, and the dust collector jacket 221, the heat preservation layer 220 and the heat preservation medium circulation pipeline 6 form a loop. The precipitator jacket 221 may be provided with an inlet, which may be a first branch 605 described below, and an outlet, which may communicate with the lower bypass pipe 604.
Therefore, by arranging the dust remover jacket 221, the furnace gas can keep stable temperature in the whole process of conveying and dust removal, and yellow phosphorus steam and the like in the furnace gas are prevented from phase-change precipitation.
The jacketed pipe 2 comprises at least two sections which are respectively communicated with the inlet end and the outlet end of the dry dust collector 4; each section of the jacket pipe 2 is provided with an inlet and an outlet which are communicated with a heat preservation medium circulation pipeline 6, and each section of the jacket pipe 2 unit and the heat preservation medium circulation pipeline 6 form a loop.
Therefore, the jacketed pipe 2 is arranged into a plurality of sections, and each section is provided with an inlet and an outlet which are communicated with the heat-insulating medium circulating pipeline 6, so that the temperature difference of the heat-insulating medium caused by too long distance conveying in the conveying process of furnace gas is avoided.
The jacketed pipe 2 is provided with an electric heating device 3 at the inlet end of a dry dust collector 4. The electric heating device 3 is arranged, namely, the furnace gas is insulated in a direct heating mode, and the direct insulation and the indirect insulation through the jacketed pipe 2 are adopted for carrying out insulation work together, so that the operation is more flexible. Namely, whether the temperature of the furnace gas is controlled or raised, a targeted and differential process scheme can be carried out according to the process requirements and the function settings. Namely, temperature parameter setting is carried out according to the furnace gas dew point temperature, and the dew point temperature can be 30-70 ℃.
The jacketed pipe 2 comprises a first section 201, a second section 202 and a third section 203, wherein the first section 201 is communicated with an inlet of the electric heating device 3, two ends of the second section 202 are respectively communicated with an outlet of the electric heating device 3 and an inlet of the dry dust collector 4, and the third section 203 is communicated with an outlet of the dry dust collector 4.
The heat preservation medium circulation pipeline 6 comprises a first pipeline 601, and the inlet and outlet ends of the first pipeline 601 are respectively communicated with the heat preservation layer 220 of the first section 201 to form a loop; the jacket pipe 2 includes a dust collector jacket 221 for covering or enclosing the dry dust collector 4 and for allowing a thermal insulation medium to flow therethrough; the first pipe 601 is provided with a first branch 605 directly communicating with the precipitator jacket 221, and the outlet of the precipitator jacket 221 is directly communicated with the first pipe 601 through an output branch 605.
The heat-insulating medium circulation line 6 further includes a second line 602 and a third line 603, an inlet of the second line 602 is connected to the third section 203, an outlet of the second line 602 is connected to the second section 202, an inlet of the third line 603 is connected to the second section 202, and an outlet of the third line 603 is connected to the third section 203. The third line 603 is also provided with a bypass 604, which bypass 604 is connected to the third section 203.
Therefore, the insulating layers of the second section 202 and the third section 203 can be provided with inlets and outlets communicated with the insulating medium circulation pipeline 6, and the insulating layers of the second section 202 and the third section 203 are also directly communicated with each other, so that the balance of the temperature of nitrogen in the insulating layers is guaranteed. The third section 203 is provided with a second branch 606 which is directly connected to the first pipe 601, so that the insulating medium or nitrogen gas at the end, i.e. the third section 203, can be directly returned to the first pipe 601 to be continuously heated by the heat tracing heater 620.
The first branch 605 is also respectively communicated with the insulating layer 220 of the second section 202 and the insulating layer 220 of the third section 203.
Specifically, when furnace gas is conveyed, the heat preservation is performed by arranging the jacketed pipe 2 on the conveying passage and conveying a circulating heat preservation medium to the heat preservation layer 220 in the jacketed pipe 2.
The contents of the present invention have been explained above. Those skilled in the art will be able to implement the invention based on these teachings. All other embodiments, which can be derived by a person skilled in the art from the above description without inventive step, shall fall within the scope of protection of the present invention.
Claims (10)
1. Yellow phosphorus electric furnace burner gas temperature regulating device disposes in yellow phosphorus electric furnace burner gas dry dedusting system for control the temperature to conveying burner gas, its characterized in that, yellow phosphorus electric furnace burner gas temperature regulating device includes:
the device comprises a jacketed pipe (2), wherein the jacketed pipe (2) comprises an inner pipe (210) and a heat insulation layer (220) sleeved outside the inner pipe (210), and the jacketed pipe (2) is used for conveying furnace gas output from the yellow phosphorus electric furnace (1) into a dry dust collector (4) in a furnace gas dry dust collection system of the yellow phosphorus electric furnace;
the heat preservation medium circulation pipeline (6), the heat preservation medium circulation pipeline (6) is communicated with the heat preservation layer (220), and the heat preservation medium circulation pipeline (6) is provided with a heat preservation medium driving device and a heat tracing heater (620) (620) for controlling the temperature of the heat preservation medium, wherein the heat preservation medium driving device is used for enabling the heat preservation medium to circularly flow between the heat preservation layer (220) and the heat preservation medium circulation pipeline (6); and a valve is arranged on the heat preservation medium circulating pipeline (6).
2. The furnace gas temperature control device of the yellow phosphorus electric furnace according to claim 1, wherein the jacketed pipe (2) comprises a dust collector jacket (221) for circulation of a heat preservation medium for sheathing or wrapping the dry dust collector (4), the dust collector jacket (221) is communicated with the heat preservation layer (220), and the dust collector jacket (221), the heat preservation layer (220) and the heat preservation medium circulation pipeline (6) form a loop.
3. The furnace gas temperature control device of the yellow phosphorus electric furnace according to claim 1, wherein the jacketed pipe (2) comprises at least two sections which are respectively communicated with the inlet end and the outlet end of the dry dust collector (4); an inlet and an outlet which are communicated with a heat preservation medium circulation pipeline (6) are arranged on each section of the jacket pipe (2), and a loop is formed by each section of the jacket pipe (2) unit and the heat preservation medium circulation pipeline (6).
4. The furnace gas temperature control device of the yellow phosphorus electric furnace according to claim 1, characterized in that the jacketed pipe (2) is provided with an electric heating device (3) at the inlet end of the dry dust collector (4).
5. The furnace gas temperature control device of the yellow phosphorus electric furnace according to claim 4, characterized in that the jacketed pipe (2) comprises a first section (201), a second section (202) and a third section (203), wherein the first section (201) is communicated with an inlet of the electric heating device (3), two ends of the second section (202) are respectively communicated with an outlet of the electric heating device (3) and an inlet of the dry dust collector (4), and the third section (203) is communicated with an outlet of the dry dust collector (4).
6. The furnace gas temperature control device of the yellow phosphorus electric furnace according to claim 5, wherein the heat preservation medium circulation pipeline (6) comprises a first pipeline, and the inlet and outlet ends of the first pipeline are respectively communicated with the heat preservation layer (220) of the first section (201) to form a loop; the jacketed pipe (2) comprises a dust collector jacket (221) for sleeving or wrapping the dry dust collector (4) and used for circulating a heat preservation medium; the first pipeline is provided with a first branch which is directly communicated with the dust remover jacket (221), and an outlet of the dust remover jacket (221) is directly communicated with the first pipeline through the first branch.
7. The furnace gas temperature control device of the yellow phosphorus electric furnace according to claim 6, wherein the first branch is further communicated with the insulating layer (220) of the second section (202) and the insulating layer (220) of the third section (203), respectively.
8. The furnace gas temperature control system of the yellow phosphorus electric furnace comprises the yellow phosphorus electric furnace (1) and the dry dust collector (4), and is characterized by further comprising the furnace gas temperature control device of the yellow phosphorus electric furnace according to any one of claims 1 to 6, wherein the yellow phosphorus electric furnace (1) is communicated with the dry dust collector (4) through a jacket pipe (2) of the furnace gas temperature control device of the yellow phosphorus electric furnace.
9. The temperature control method of furnace gas of the yellow phosphorus electric furnace is characterized by comprising the following steps:
the furnace gas output from the yellow phosphorus electric furnace (1) is insulated, so that the temperature drop of the furnace gas is avoided;
heating the furnace gas after heat preservation to enable the temperature of the furnace gas to be above 20 ℃, and keeping the furnace gas in an unsaturated steam state; the furnace gas at the temperature of more than 20 ℃ in the unsaturated steam state is subjected to heat preservation, so that the temperature drop of the furnace gas is avoided;
performing dry dust removal on the furnace gas and preserving the heat of the furnace gas by arranging a jacket which is internally circulated with a heat preservation medium outside the dry dust remover (4);
and preserving the heat of the furnace gas after dust removal to ensure that the temperature of the furnace gas does not drop and the furnace gas is discharged.
10. The furnace gas temperature control method of the yellow phosphorus electric furnace according to claim 9, characterized in that the heat preservation is carried out by arranging the jacketed pipe (2) on the conveying passage and conveying a circulating heat preservation medium to the heat preservation layer (220) in the jacketed pipe (2) during the conveying of the furnace gas.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010170858.8A CN111306948A (en) | 2020-03-12 | 2020-03-12 | Furnace gas temperature control device, system and method for yellow phosphorus electric furnace |
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| CN202010170858.8A CN111306948A (en) | 2020-03-12 | 2020-03-12 | Furnace gas temperature control device, system and method for yellow phosphorus electric furnace |
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