CN211575902U - Sintering is rising temperature device for flue gas - Google Patents
Sintering is rising temperature device for flue gas Download PDFInfo
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- CN211575902U CN211575902U CN201921874477.7U CN201921874477U CN211575902U CN 211575902 U CN211575902 U CN 211575902U CN 201921874477 U CN201921874477 U CN 201921874477U CN 211575902 U CN211575902 U CN 211575902U
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- pipe
- gas
- flue gas
- cavity
- sintering flue
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- 238000005245 sintering Methods 0.000 title claims abstract description 71
- 239000003546 flue gas Substances 0.000 title claims abstract description 64
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 230000000630 rising effect Effects 0.000 title claims abstract description 21
- 238000002485 combustion reaction Methods 0.000 claims abstract description 85
- 239000007789 gas Substances 0.000 claims abstract description 72
- 238000002156 mixing Methods 0.000 claims abstract description 34
- 230000001502 supplementing effect Effects 0.000 claims abstract description 15
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000011521 glass Substances 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000012717 electrostatic precipitator Substances 0.000 abstract description 3
- 239000003034 coal gas Substances 0.000 description 19
- 239000000428 dust Substances 0.000 description 5
- 238000004880 explosion Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009766 low-temperature sintering Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate group Chemical group S(=O)(=O)([O-])[O-] QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The utility model provides a temperature rising device for sintering flue gas, which belongs to the technical field of sintering production equipment and comprises a combustion chamber, a spoiler, a gas pipe, an air supply pipe, an exhaust pipe, a thermocouple and a controller; the combustion chamber is internally provided with an accommodating cavity, the accommodating cavity is divided into a mixing cavity and a combustion cavity by a spoiler, the spoiler is provided with a flow guide hole, the combustion cavity is provided with a fire hole and a cover plate, one end of a gas pipe is connected with a compressed gas source, and the other end of the gas pipe is communicated with the mixing cavity; the air supplementing pipe is connected with the fan and communicated with the mixing cavity; the exhaust pipe is communicated with the sintering flue gas pipe and the combustion cavity and is provided with a normally closed electromagnetic valve; the thermocouple is fixedly arranged in the combustion chamber, and the controller is electrically connected with the thermocouple and the normally closed electromagnetic valve respectively. The utility model provides a pair of rising temperature device for sintering flue gas can heat up microthermal sintering flue gas, reduces the damage of sintering flue gas to electrostatic precipitator.
Description
Technical Field
The utility model belongs to the technical field of sintering production facility, more specifically say, relate to a sintering is rising temperature device for flue gas.
Background
During the sintering production process, the sulfur in the original fire source is oxidized into gaseous SO at high temperature2SO in sintering flue gas2Mainly from FeS in the iron-containing raw material2Organic sulfur oxidation in FeS and fire sources. And part of the high-temperature decomposition of the sulfate exists in the whole process of sintering production. However, in the sintering production process, especially in northern areas, the sintering flue gas temperature is often below the dew point temperature when the sintering machine is started after overhaul, and the sintering flue gas temperature can be kept for a long time, so that the smoke exhaust temperature of the electric dust remover is in a lower temperature range, and therefore, how to improve the sintering flue gas temperature and the reasonable sintering smoke exhaust temperature are designed, and the operation of the electric dust remover with consideration of economy and safety is crucial
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sintering is rising temperature device for flue gas aims at rising temperature the sintering flue gas, reduces microthermal sintering flue gas to electrostatic precipitator's damage.
In order to achieve the above object, the utility model adopts the following technical scheme: the temperature rising device for sintering flue gas comprises a combustion chamber, a spoiler, a gas pipe, an air supply pipe, an exhaust pipe, a thermocouple and a controller; the inside of the combustion chamber is provided with an accommodating cavity; the spoiler is fixedly arranged in the accommodating cavity and divides the accommodating cavity into a mixing cavity and a combustion cavity, a flow guide hole is formed in the spoiler and is communicated with the mixing cavity and the combustion cavity, a fire hole and a cover plate are arranged on the outer side surface of the combustion cavity, the fire hole is used for adding a fire source into the combustion cavity, and the cover plate is used for blocking the fire hole; one end of the gas pipe is connected with a compressed gas source, and the other end of the gas pipe is communicated with the mixing cavity; one end of the air supplementing pipe is connected with the fan, and the other end of the air supplementing pipe is communicated with the mixing cavity; one end of the exhaust pipe is communicated with the sintering flue gas pipe, the other end of the exhaust pipe is communicated with the combustion cavity, and the exhaust pipe is provided with a normally closed electromagnetic valve; the thermocouple is fixedly arranged in the combustion chamber and used for measuring the temperature in the combustion chamber; and the controller is arranged on the outer side of the combustion chamber and is respectively and electrically connected with the thermocouple and the normally closed electromagnetic valve, and the controller can open the normally closed electromagnetic valve after the thermocouple detects a set temperature.
As another embodiment of this application, still include the pressure release pipe, pressure release pipe one end intercommunication the combustion chamber, other end intercommunication sintering flue gas pipe, be equipped with the relief valve on the pressure release pipe.
As another embodiment of the application, a gas glasses valve, a gas butterfly valve, a gas quick-cutting valve and a gas regulating valve are sequentially arranged on the gas pipe along the flowing direction of the gas.
As another embodiment of this application, be equipped with air fast-cutting valve and air control valve on the air supplement pipe, the air fast-cutting valve with the equal electricity of air control valve is connected the controller.
As another embodiment of the present application, the fire through holes are square holes or circular holes.
As another embodiment of this application, the terminal surface of logical burner sets up the screw hole, the apron is equipped with logical burner, the apron pass through the bolt with logical burner is connected, the bolt passes logical burner and penetrates in the screw hole.
As another embodiment of this application, the horizontal cross section of combustion chamber is circular, logical burner is two and the symmetry sets up the both sides in combustion chamber.
As another embodiment of the present application, the internal space of the combustion chamber is 1.5-2 times the internal space of the mixing chamber.
As another embodiment of the application, the end parts of the gas pipe and the air supplementing pipe extending into the mixing cavity are provided with burners.
As another embodiment of the present application, an air outlet of the air supply pipe is higher than an air outlet of the gas pipe.
The utility model provides a pair of sintering is rising temperature device for flue gas's beneficial effect lies in: compared with the prior art, the combustion chamber is divided into two cavities by the spoiler, the mixing cavity can mix the coal gas input by the coal gas pipe and the air input by the air supplementing pipe, the coal gas can be combusted in the combustion cavity and heat the air, and the high-temperature gas can enter the sintering flue gas pipe through the exhaust pipe and is mixed with the sintering flue gas, so that the sintering flue gas is heated; the pressure relief pipe is connected between the combustion cavity and the sintering flue gas pipe, when the pressure in the combustion cavity is overlarge, the pressure relief valve on the pressure relief pipe is opened, gas in the combustion chamber is put into the sintering flue, and the condition that a plurality of gas pressures in the combustion chamber are not generated and explosion is generated is ensured; the utility model provides a rising temperature device, simple structure, the operation of being convenient for can heat up microthermal sintering flue gas, reduces the harm of sintering flue gas to electrostatic precipitator.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a temperature rising device for sintering flue gas provided by an embodiment of the present invention.
In the figure: 1. a combustion chamber; 11. an accommodating cavity; 111. a mixing chamber; 112. a combustion chamber; 12. a fire opening; 13. A cover plate; 2. a spoiler; 21. a flow guide hole; 3. a gas pipe; 31. a gas regulating valve; 32. a gas glasses valve; 33. a gas butterfly valve; 34. a gas quick-cut valve; 4. air supplementing pipes; 41. an air regulating valve; 42. an air quick-cut valve; 5. an exhaust pipe; 51. a normally closed solenoid valve; 6. a pressure relief pipe; 61. a pressure relief valve; 7. a thermocouple; 8. a fan; 9. sintering a flue gas pipe; 10. an electric dust remover.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, a temperature rising device for sintering flue gas according to the present invention will now be described. The temperature rising device for the sintering flue gas comprises a combustion chamber 1, a spoiler 2, a gas pipe 3, an air supplementing pipe 4, an exhaust pipe 5, a pressure relief pipe 6, a thermocouple 7 and a controller; the combustion chamber 1 is internally provided with an accommodating cavity 11; the spoiler 2 is fixedly arranged in the accommodating cavity 11 and divides the accommodating cavity 11 into a mixing cavity 111 and a combustion cavity 112, a flow guide hole 21 is formed in the spoiler 2, the flow guide hole 21 is communicated with the mixing cavity 111 and the combustion cavity 112, a fire hole 12 and a cover plate 13 are arranged on the outer side surface of the combustion cavity 112, the fire hole 12 is used for adding a fire source into the combustion cavity 112, and the cover plate 13 is used for blocking the fire hole 12; one end of the gas pipe 3 is connected with a compressed gas source, and the other end is communicated with the mixing cavity 111; one end of the air supplementing pipe 4 is connected with the fan 8, and the other end is communicated with the mixing cavity 111; one end of the exhaust pipe 5 is communicated with the sintering flue gas pipe 9, the other end of the exhaust pipe is communicated with the combustion cavity 112, and the exhaust pipe 5 is provided with a normally closed electromagnetic valve 51; one end of the pressure relief pipe 6 is communicated with the combustion cavity 112, the other end of the pressure relief pipe is communicated with the sintering flue gas pipe 9, and a pressure relief valve 61 is arranged on the pressure relief pipe 6; the thermocouple 7 is fixedly arranged in the combustion chamber 112 and is used for measuring the temperature in the combustion chamber 112; and a controller disposed outside the combustion chamber 1 and electrically connected to the thermocouple 7 and the normally closed solenoid valve 51, respectively, the controller being capable of opening the normally closed solenoid valve 51 after the thermocouple 7 detects a set temperature.
Compared with the prior art, the temperature rising device for sintering flue gas provided by the utility model has the advantages that the combustion chamber 1 is divided into two cavities, namely the mixing cavity 111 and the combustion cavity 112, the fire opening 12 is arranged outside the combustion cavity 112, and a fire source can be added into the combustion cavity 112 through the fire opening 12; the spoiler 2 is arranged inside the combustion chamber 1, and is provided with a diversion hole 21 for communicating the mixing cavity 111 and the combustion cavity 112, and the gas in the mixing cavity 111 can enter the combustion cavity 112 through the diversion hole 21; the gas pipe 3 and the air supply pipe 4 are respectively communicated with the mixing cavity 111, and gas and air are filled into the mixing cavity 111; the thermocouple 7 is arranged in the combustion cavity 112, can measure the temperature in the combustion cavity 112, and transmit the temperature to the controller in real time, when the temperature in the combustion cavity 112 reaches the temperature value set in the controller, the controller will open the normally closed electromagnetic valve 51 on the exhaust pipe 5, so that the exhaust pipe 5 with the high-temperature gas mounting hole is led into the sintering flue gas pipe 9, and is mixed with the low-temperature sintering flue gas in the sintering flue gas pipe 9, and the temperature rise of the sintering flue gas is completed; before the device is used, a fire source is required to be placed into a combustion cavity 112 through a fire hole 12, then the fire hole 12 is covered by a cover plate 13 to ensure that gas cannot overflow from the fire hole 12, then a coal gas pipe 3 with a mounting hole and an air supplementing pipe 4 are respectively filled with coal gas and air into a mixing cavity 111, the coal gas and the air can be mixed in the mixing cavity 111 to reduce the concentration of the coal gas, the mixed gas enters the combustion cavity 112 through a flow guide hole 21, the coal gas in the mixed gas can be combusted when encountering the fire source, the concentration of the coal gas cannot reach the condition of generating explosion due to the existence of the air in the mixed gas, the coal gas can only be combusted to heat the air, a thermocouple 7 measures the temperature in the combustion cavity 112 and transmits a temperature signal to a controller, when the temperature reaches a set value, the controller can open a normally closed electromagnetic valve 51 on an exhaust pipe 5 to enable high-temperature gas in the combustion cavity 112 to enter a sintering flue pipe 9 through the exhaust pipe 5, and mixes with the low-temperature sintering flue gas, so as to increase the temperature of the sintering flue gas, enable the electric dust collector 10 to better consume the sintering flue gas, and finally realize the protection of the electric dust collector 10.
In this embodiment, in order to ensure that the gas in the mixing chamber 111 smoothly enters the combustion chamber 112, a plurality of baffle holes 21 may be formed in the spoiler 2.
As a specific implementation manner of the heating device for sintering flue gas provided by the utility model, please refer to fig. 1, further including the pressure relief pipe 6, the pressure relief pipe 6 one end communicates the combustion chamber 112, and the other end communicates the sintering flue gas pipe 9, is equipped with the relief valve 61 on the pressure relief pipe 6. When the temperature in the combustion chamber 112 does not reach the set value, because pressure rises gradually, in order to guarantee safety, pressure release pipe 6 and relief valve 61 have been set up, when the pressure in the combustion chamber 112 was too high, the gas in the combustion chamber 112 can open relief valve 61, enter into sintering flue gas pipe 9 through pressure release pipe 6 in, both guaranteed the security in combustion chamber 112, also can utilize this part of gas to heat the sintering flue gas, improved resource utilization.
As a specific embodiment of the temperature increasing device for sintering flue gas provided by the present invention, please refer to fig. 1, a gas glasses valve 32, a gas butterfly valve 33, a gas fast-cutting valve 34 and a gas regulating valve 31 are sequentially disposed on the gas pipe 3 along the flowing direction of gas. Because the gas has great danger, the gas glasses valve 32, the gas butterfly valve 33 and the gas quick-cut valve 34 are respectively arranged on the gas pipe 3, so that the safety of the whole device can be further improved, and the service life of the whole device can be prolonged; the worker can also adjust the gas regulating valve 31 to control the amount of gas in the combustion chamber 1 according to the situation on site.
As a specific implementation mode of the heating device for sintering flue gas, the air fast-cutting valve 42 and the air regulating valve 41 are arranged on the air supplementing pipe 4, and the air fast-cutting valve 42 and the equal electric connection controller of the air regulating valve 41 are arranged. The air quick-cut valve 42 is arranged on the air supply pipe 4, so that the condition that coal gas flows into a workshop from the air supply pipe 4 to cause damage to the workshop when the fan 8 fails can be prevented; the air adjusting valve 41 is arranged on the air supplementing pipe 4, so that workers can adjust air entering the combustion chamber 1, and the coal gas in the combustion chamber 1 can be fully combusted; the air regulating valve 41 and the air quick-cutting valve 42 are electrically connected to the controller, so that the automatic control of the air regulating valve 41 and the air quick-cutting valve 42 can be realized, and the unmanned field can be realized conveniently.
As a specific embodiment of the heating device for sintering flue gas provided by the utility model, the fire opening 12 is a square hole or a circular hole. The fire hole 12 is arranged in a shape convenient for placing a fire source, is a common form on site, is beneficial to increasing the safety of workers on site, and further ensures the personal safety of the workers.
As a pair of the utility model provides a pair of heating device for sintering flue gas's a concrete implementation mode, the terminal surface that leads to fire mouth 12 sets up the screw hole, and apron 13 is equipped with the mounting hole, and apron 13 passes through the bolt to be connected with the mounting hole, and the bolt passes the mounting hole and penetrates in the screw hole. Set up the screw hole at fire hole 12 terminal surface to set up a plurality of mounting holes on apron 13, use the bolt to fix apron 13 on fire hole 12's terminal surface, in order to guarantee that the gas in combustion chamber 1 does not let out from the gap between fire hole 12 and the apron 13, can set up sealed the pad between fire hole 12 and apron 13, screw up through the bolt, make apron 13 tightly press on the sealing pad, make gas can not let out.
As a specific embodiment of the heating device for sintering flue gas provided by the present invention, please refer to fig. 1, the horizontal cross section of the combustion chamber 1 is circular, and the two fire holes 12 are symmetrically disposed on two sides of the combustion chamber 112. The combustion chamber 1 is arranged in a cylindrical shape, the bottom of the spoiler 2 is in contact with the bottom of the combustion chamber 1, the top of the spoiler 2 is in contact with the top of the combustion chamber 1, two fire ports 12 are arranged outside the combustion chamber 112, and the two fire ports 12 are symmetrically arranged, so that the introduction of fire sources from different positions inside the combustion chamber 1 can be ensured.
As a specific embodiment of the heating device for sintering flue gas provided by the present invention, the internal space of the combustion chamber 112 is 1.5-2 times of the internal space of the mixing chamber 111. The mixing cavity 111 is small, so that the coal gas and the air can be fully mixed, the combustion cavity 112 is large, so that the coal gas can be fully combusted, the air can be heated more fully and uniformly, and the temperature of the sintering flue gas can be finally increased.
As a specific embodiment of the heating device for sintering flue gas provided by the utility model, the tip that gas pipe 3 and air supply pipe 4 stretched into mixing chamber 111 all is equipped with the nozzle. In order to further ensure that the coal gas and the air cannot explode when being mixed, burners can be arranged at the inlets of the coal gas pipe 3 and the air supplementing pipe 4 extending into the mixing cavity 111, and the mixed gas of the coal gas and the air can be far lower than the explosion limit of the coal gas when the coal gas and the air pass through the burners.
As a specific embodiment of the heating device for sintering flue gas provided by the utility model, the air outlet of the air supply pipe 4 is higher than the air outlet of the gas pipe 3. Since the gas is lighter than air, when the air outlet of the air supply pipe 4 is arranged above the air outlet of the gas pipe 3, the gas rises to enter the air, and the two gases begin to be mixed just after entering the mixing cavity 111.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a sintering is rising temperature device for flue gas which characterized in that includes:
the combustion chamber is internally provided with an accommodating cavity;
the spoiler is fixedly arranged in the accommodating cavity and divides the accommodating cavity into a mixing cavity and a combustion cavity, a flow guide hole is formed in the spoiler and is communicated with the mixing cavity and the combustion cavity, a fire hole and a cover plate are arranged on the outer side surface of the combustion cavity, the fire hole is used for adding a fire source into the combustion cavity, and the cover plate is used for blocking the fire hole;
one end of the gas pipe is connected with a compressed gas source, and the other end of the gas pipe is communicated with the mixing cavity;
one end of the air supplementing pipe is connected with the fan, and the other end of the air supplementing pipe is communicated with the mixing cavity;
one end of the exhaust pipe is communicated with the sintering flue gas pipe, the other end of the exhaust pipe is communicated with the combustion cavity, and the exhaust pipe is provided with a normally closed electromagnetic valve;
the thermocouple is fixedly arranged in the combustion chamber and used for measuring the temperature in the combustion chamber; and
and the controller is arranged on the outer side of the combustion chamber and is respectively and electrically connected with the thermocouple and the normally closed electromagnetic valve, and the controller can open the normally closed electromagnetic valve after the thermocouple detects a set temperature.
2. A heating device for sintering flue gas as claimed in claim 1, further comprising a pressure relief pipe, one end of the pressure relief pipe is communicated with the combustion chamber, the other end is communicated with the sintering flue gas pipe, and a pressure relief valve is arranged on the pressure relief pipe.
3. The temperature rising device for sintering flue gas as claimed in claim 1, wherein a gas glasses valve, a gas butterfly valve, a gas quick-cutting valve and a gas regulating valve are sequentially arranged on the gas pipe along the flowing direction of the gas.
4. The temperature rising device for the sintering flue gas as claimed in claim 3, wherein the air supplementing pipe is provided with an air fast-cutting valve and an air regulating valve, and both the air fast-cutting valve and the air regulating valve are electrically connected with the controller.
5. The temperature rising device for sintering flue gas according to claim 1, wherein the fire hole is a square hole or a circular hole.
6. A temperature rising device for sintering flue gas as claimed in claim 5, wherein the end face of the fire through hole is provided with a threaded hole, the cover plate is provided with the fire through hole, the cover plate is connected with the fire through hole through a bolt, and the bolt penetrates through the fire through hole and into the threaded hole.
7. The heating device for the sintering flue gas as claimed in claim 1, wherein the horizontal cross section of the combustion chamber is circular, and the two fire ports are symmetrically arranged on two sides of the combustion chamber.
8. A temperature-elevating device for flue gas from sintering as set forth in claim 7 wherein the internal space of said combustion chamber is 1.5-2 times the internal space of said mixing chamber.
9. The temperature rising device for the sintering flue gas as claimed in claim 1, wherein the ends of the gas pipe and the air supply pipe extending into the mixing chamber are provided with burners.
10. The temperature rising device for sintering flue gas as claimed in any one of claims 1 to 9, wherein the air outlet of the air supply pipe is higher than the air outlet of the gas pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921874477.7U CN211575902U (en) | 2019-11-01 | 2019-11-01 | Sintering is rising temperature device for flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921874477.7U CN211575902U (en) | 2019-11-01 | 2019-11-01 | Sintering is rising temperature device for flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211575902U true CN211575902U (en) | 2020-09-25 |
Family
ID=72530224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921874477.7U Expired - Fee Related CN211575902U (en) | 2019-11-01 | 2019-11-01 | Sintering is rising temperature device for flue gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211575902U (en) |
-
2019
- 2019-11-01 CN CN201921874477.7U patent/CN211575902U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
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Granted publication date: 20200925 |