CN216856180U - Dry-method multistage dust removal system - Google Patents
Dry-method multistage dust removal system Download PDFInfo
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- CN216856180U CN216856180U CN202123446496.XU CN202123446496U CN216856180U CN 216856180 U CN216856180 U CN 216856180U CN 202123446496 U CN202123446496 U CN 202123446496U CN 216856180 U CN216856180 U CN 216856180U
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Abstract
The utility model relates to the technical field of flue gas dust removal, in particular to a dry method multistage dust removal system, which comprises a conveying pipeline, a cooling dust removal component, a secondary dust removal component, a conveying component, a bell jar valve, a tertiary dust removal component and a discharge pipeline: the other end of the cooling dust removal component is communicated with one end of the secondary dust removal component, and the cooling dust removal component is used for cooling smoke dust and removing primary dust; the other end of the secondary dust removal component is communicated with one end of the conveying component, and the secondary dust removal component is used for carrying out secondary dust removal on the smoke dust; the conveying component is communicated with an air inlet of the bell jar valve; the air outlet of the bell jar valve is communicated with one end of the third-stage dust removal component; the third-stage dust removal component is used for carrying out third-stage dust removal on the smoke dust. The utility model realizes the multi-stage dust removal of the flue gas, improves the efficiency of the flue gas dust removal, effectively removes fine particles in the flue gas, improves the flue gas dust removal effect, ensures that the emission concentration of the flue gas after dust removal can meet the requirement of the current ultralow emission standard, and avoids the pollution to the environment.
Description
Technical Field
The utility model relates to the technical field of flue gas dust removal, in particular to a dry-method multistage dust removal system.
Background
A large amount of flue gas is generated in converter steelmaking, the temperature of the flue gas can reach 1450 ℃, and a large amount of sensible heat is contained; the dust content in the smoke can reach 150g/m3, and the main component of the smoke is total iron which can reach more than 50%; in the middle and later smelting period, the content of CO in the flue gas reaches over 50 percent, even 80 percent. If it is released, it will cause serious pollution to the environment around the factory, which is hundreds of square kilometers.
At present, the converter LT dry dedusting system is mainly used for dedusting flue gas, but the converter LT dry dedusting system is a product developed in the last century, the dedusting capability is poor, the dedusting efficiency is low, the emission concentration of the dedusted flue gas cannot meet the requirement of ultra-low emission standard, and the environment is easily polluted.
SUMMERY OF THE UTILITY MODEL
The utility model provides a dry-method multistage dust removal system, which is used for solving the defects that a converter LT dry-method dust removal system in the prior art has poor dust removal capability and low dust removal efficiency, the emission concentration of flue gas after dust removal is difficult to meet the requirement of the current ultralow emission standard, the environment is easy to pollute and the like, realizes multistage dust removal on the flue gas, improves the efficiency of flue gas dust removal, effectively removes fine particles in the flue gas, improves the dust removal effect of the flue gas, ensures that the emission concentration of the flue gas after dust removal can meet the requirement of the current ultralow emission standard, and avoids polluting the environment.
The utility model provides a dry-method multistage dust removal system, which comprises a conveying pipeline, a cooling dust removal component, a secondary dust removal component, a conveying component, a bell jar valve, a tertiary dust removal component and a discharge pipeline, wherein the conveying pipeline comprises the following components in parts by weight:
one end of the conveying pipeline is communicated with one end of the cooling and dust removing component, and the conveying pipeline is used for conveying the smoke dust to be treated into the cooling and dust removing component;
the other end of the cooling dust removal component is communicated with one end of the secondary dust removal component, and the cooling dust removal component is used for cooling smoke dust and removing primary dust;
the other end of the secondary dust removal component is communicated with one end of the conveying component, and the secondary dust removal component is used for carrying out secondary dust removal on the smoke dust;
the other end of the conveying component is communicated with an air inlet of the bell valve, and the conveying component is used for conveying smoke dust into the bell valve;
the air outlet of the bell jar valve is communicated with one end of the three-stage dust removal component;
the other end of the third-stage dust removal component is communicated with one end of the discharge pipeline, and the third-stage dust removal component is used for carrying out third-stage dust removal on the smoke dust.
According to the dry multistage dust removal system provided by the utility model, the cooling dust removal component comprises a cooling tower and a water spray component, the upper end of the cooling tower is communicated with one end of the conveying pipeline, the lower end of the cooling tower is communicated with one end of the secondary dust removal component, and the water spray component is arranged on the side wall surface of the cooling tower.
According to the dry multistage dust removal system provided by the utility model, the water spray assembly comprises a plurality of atomizing nozzles and a first controller, the atomizing nozzles are arranged on the side wall surface of the cooling tower, and the first controller is electrically connected with the atomizing nozzles.
According to the dry multistage dust removal system provided by the utility model, the water spray assembly further comprises a first temperature sensor, the first temperature sensor is installed in the cooling tower and is positioned at the connecting part of the cooling tower and the conveying pipeline, and the first temperature sensor is electrically connected with the first controller.
According to the dry-method multistage dust removal system provided by the utility model, the secondary dust removal component comprises at least one electrostatic dust remover, one end of the electrostatic dust remover is communicated with the other end of the cooling dust removal component, and the other end of the electrostatic dust remover is communicated with one end of the conveying component.
According to the dry-method multistage dust removal system provided by the utility model, the three-stage dust removal component comprises at least one high-temperature filter dust remover, the air inlet of the high-temperature filter dust remover is communicated with the air outlet of the bell jar valve, and the air outlet of the high-temperature filter dust remover is communicated with the discharge pipeline.
According to the dry multistage dust removal system provided by the utility model, the dry multistage dust removal system further comprises a fire extinguishing assembly, the fire extinguishing assembly is installed on one side of the high-temperature filter dust remover, and the fire extinguishing assembly is used for detecting the temperature at the air inlet of the high-temperature filter dust remover.
According to the dry method multistage dust removal system provided by the utility model, the fire extinguishing assembly comprises a nitrogen tank, a second temperature sensor and a second controller, the nitrogen tank is positioned at one side of the high-temperature filtering dust remover, an electric valve is arranged at an air outlet of the nitrogen tank and electrically connected with the second controller, the second temperature sensor is positioned at an air inlet of the high-temperature filtering dust remover and electrically connected with the second controller.
According to the dry multistage dust removal system provided by the utility model, the other end of the discharge pipeline is provided with the detection component and the reminding component, and the detection component is used for detecting the concentration of the flue gas discharged through the other end of the discharge pipeline.
According to the dry-method multistage dust removal system provided by the utility model, the detection assembly comprises a flue gas concentration detector and a third controller, the flue gas concentration detector is installed at the other end of the discharge pipeline, the flue gas concentration detector is electrically connected with the third controller, and the reminding assembly is electrically connected with the third controller; the reminding assembly comprises a buzzer and a light-emitting LED lamp, and the buzzer and the light-emitting LED lamp are respectively electrically connected with the third controller.
According to the dry-method multistage dust removal system provided by the utility model, the flue gas to be treated is conveyed into the conveying pipeline through the other end of the conveying pipeline, so that the flue gas is conveyed into the cooling dust removal component through the conveying pipeline, then the cooling dust removal component cools the flue gas and performs primary dust removal, the temperature of the flue gas is reduced to a preset temperature value, and primary dust removal of the flue gas is realized. The flue gas that is handled through cooling dust removal part moves to in the second grade dust removal part, then the second grade dust removal part carries out the secondary dust removal to the flue gas, further gets rid of the tiny granule in the flue gas, improves dust removal effect. Then the flue gas treated by the secondary dust removal component is conveyed into the bell jar valve by the conveying component, then the flue gas moves into the tertiary dust removal component through the bell jar valve, then the tertiary dust removal component carries out tertiary dust removal on the flue gas, and then fine particles in the flue gas are further removed. And then realized removing dust to the flue gas in multistage, improved the efficiency that the flue gas removed dust, effectively got rid of the tiny granule in the flue gas, improved the flue gas dust removal effect for flue gas emission concentration after the dust removal can reach present ultralow emission standard's requirement, avoids causing the pollution to the environment.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a dry multistage dust removal system provided by the utility model;
reference numerals:
1: a delivery conduit; 2: cooling the dust removal component; 3: a secondary dust removal component;
4: a conveying member; 5: a bell jar valve; 6: a third stage dust removal component;
7: a discharge conduit; 8: a fire extinguishing assembly; 21: a cooling tower;
22: a water spray assembly; 23: an atomizing nozzle; 24: a first temperature sensor;
31: an electrostatic precipitator; 61: a high temperature filter dust collector; 71: a detection component;
72: a reminder component; 73: a smoke concentration detector; 74: a buzzer;
75: a light emitting LED lamp; 81: a nitrogen tank; 82: a second controller.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
The dry multistage dedusting system of the present invention is described below with reference to fig. 1.
As shown in the attached figure 1, the dry method multistage dust removal system comprises a conveying pipeline 1, a cooling dust removal component 2, a secondary dust removal component 3, a conveying component 4, a bell jar valve 5, a tertiary dust removal component 6 and a discharge pipeline 7.
Specifically, one end of the conveying pipeline 1 is communicated with one end of the cooling and dust removing component 2, and the conveying pipeline 1 is used for conveying the smoke dust to be treated into the cooling and dust removing component 2.
The other end of the cooling dust removal part 2 is communicated with one end of the second-stage dust removal part 3, and the cooling dust removal part 2 is used for cooling smoke dust and removing dust in a first-stage mode.
The other end of the secondary dust removal component 3 is communicated with one end of the conveying component 4, and the secondary dust removal component 3 is used for carrying out secondary dust removal on the smoke dust.
The other end of the conveying component 4 is communicated with the air inlet of the bell valve 5, and the conveying component 4 is used for conveying smoke into the bell valve 5.
The air outlet of the bell valve 5 is communicated with one end of the third-stage dust removal component 6.
The other end of the third-stage dust removal component 6 is communicated with one end of the discharge pipeline 7, and the third-stage dust removal component 6 is used for carrying out third-stage dust removal on smoke dust.
When the device is used, the flue gas to be treated is conveyed into the conveying pipeline 1 through the other end of the conveying pipeline 1, so that the flue gas is conveyed into the cooling and dust removing component 2 through the conveying pipeline 1, then the cooling and dust removing component 2 cools the flue gas and performs primary dust removal, the temperature of the flue gas is reduced to a preset temperature value, and primary dust removal on the flue gas is realized. The flue gas that the cooling dust removal part 2 was handled moves to in the second grade dust removal part 3, then second grade dust removal part 3 carries out the secondary dust removal to the flue gas, further gets rid of the tiny granule in the flue gas, improves dust removal effect. Then the flue gas treated by the secondary dust removal component 3 is conveyed into a bell jar valve 5 through a conveying component 4, then the flue gas moves into a tertiary dust removal component 6 through the bell jar valve 5, then the tertiary dust removal component 6 performs tertiary dust removal on the flue gas, and then fine particles in the flue gas are further removed. And then realized removing dust to the flue gas in multistage, improved the efficiency that the flue gas removed dust, effectively got rid of the tiny granule in the flue gas, improved the flue gas dust removal effect for flue gas emission concentration after the dust removal can reach present ultralow emission standard's requirement, avoids causing the pollution to the environment.
Wherein in an alternative embodiment of the utility model the transport means 4 is for example a fan. It should be understood that the transport element 4 may also be any other suitable element having a transport function.
Further, as shown in fig. 1, the cooling and dust removing part 2 includes a cooling tower 21 and a water spray assembly 22, an upper end of the cooling tower 21 is communicated with one end of the conveying pipeline 1, a lower end of the cooling tower 21 is communicated with one end of the secondary dust removing part 3, and the water spray assembly 22 is installed on a side wall surface of the cooling tower 21. In use, flue gas enters the cooling tower 21 through the conveying pipe 1 and then moves from the lower end of the cooling tower 21 into the secondary dedusting part 3. Then the water spray assembly 22 sprays water upwards, and then carries out cooling and dust removal to the flue gas that moves to the lower extreme from the cooling tower 21 upper end for the temperature of flue gas reduces to the default, makes the dust content in the flue gas reduce, realizes the first grade dust removal to the flue gas, and carries out quenching and tempering to the flue gas simultaneously, makes the specific resistance of flue gas dust more be favorable to by second grade dust removal part 3 entrapment.
As shown in fig. 1, the water spray assembly 22 includes a plurality of atomizing nozzles 23 and a first controller, the atomizing nozzles 23 are installed on a side wall surface of the cooling tower 21, and the first controller is electrically connected to the atomizing nozzles 23. When using, with atomizing nozzle 23 and water piping connection, in the flue gas enters into cooling tower 21 through pipeline 1, first controller sends corresponding signal and gives atomizing nozzle 23 for atomizing nozzle 23 is toward cooling tower 21 internal water spray, and then has realized the cooling dust removal to the flue gas.
As shown in fig. 1, the water spray assembly 22 further includes a first temperature sensor 24, the first temperature sensor 24 is installed in the cooling tower 21, the first temperature sensor 24 is located at a connection position of the cooling tower 21 and the conveying pipeline 1, and the first temperature sensor 24 is electrically connected to the first controller. When the temperature control device is used, the first temperature sensor 24 detects the temperature of the flue gas entering the cooling tower 21 through the conveying pipeline 1, the detected temperature data are transmitted to the first controller, the first controller sends corresponding signals to the atomizing nozzle 23 according to the temperature of the flue gas, the water spraying amount of the atomizing nozzle 23 is adjusted, and the temperature value of the flue gas subjected to cooling treatment through the cooling tower 21 is within a preset temperature interval.
Further, as shown in fig. 1, the secondary dust removing part 3 includes at least one electrostatic precipitator 31, one end of the electrostatic precipitator 31 is communicated with the other end of the cooling dust removing part 2, and the other end of the electrostatic precipitator 31 is communicated with one end of the conveying part 4. When the device is used, the flue gas subjected to temperature reduction and dust removal by the cooling and dust removal component 2 moves into the electrostatic dust collector 31, then the electrostatic dust collector 31 performs secondary dust removal on the flue gas, the particle content in the flue gas is further reduced, and then the flue gas subjected to secondary dust removal is conveyed into the bell valve 5 by the conveying component 4.
Further, as shown in fig. 1, the third stage dust removing unit 6 includes at least one high temperature filter dust remover 61, an air inlet of the high temperature filter dust remover 61 is communicated with an air outlet of the bell jar valve 5, and an air outlet of the high temperature filter dust remover 61 is communicated with the discharge pipe 7. When the dust removal device is used, flue gas treated by the secondary dust removal component 3 is conveyed to the bell jar valve 5 by the conveying component 4, then the flue gas is conveyed to the high-temperature filter dust remover 61 through the bell jar valve 5, the high-temperature filter dust remover 61 removes dust of the flue gas in a three-level manner, fine particles in the flue gas are effectively removed, multi-level dust removal of the flue gas is realized, the flue gas dust removal efficiency is improved, the fine particles in the flue gas are effectively removed, the flue gas dust removal effect is improved, the flue gas emission concentration after dust removal can meet the requirement of the current ultralow emission standard, and pollution to the environment is avoided.
Wherein, in an alternative embodiment of the present invention, the high temperature filter dust collector 61 is, for example, a high temperature cloth bag dust collector. It should be understood that the high temperature filter house 61 could be any other suitable house.
Further, as shown in fig. 1, the dry multistage dust removal system further includes a fire extinguishing assembly 8, the fire extinguishing assembly 8 is installed on one side of the high temperature filter dust remover 61, and the fire extinguishing assembly 8 is used for detecting the temperature at the air inlet of the high temperature filter dust remover 61. When using, fire extinguishing assembly 8 carries out real-time detection to the temperature of the air inlet department of high temperature filtration dust remover 61, and when the temperature that detects exceeded the default, fire extinguishing assembly 8 cooled down the fire to high temperature filtration dust remover 61 and put out a fire, has improved the security that the flue gas removed dust.
Wherein, as shown in figure 1, fire extinguishing assembly 8 includes nitrogen gas jar 81, second temperature sensor and second controller 82, and nitrogen gas jar 81 is located one side of high temperature filter dust remover 61, and nitrogen gas jar 81 gas outlet department is provided with electric valve, and electric valve is connected with second controller 82 electricity, and second temperature sensor is located the gas inlet department of high temperature filter dust remover 61, and second temperature sensor is connected with second controller 82 electricity. When using, the temperature of the air inlet of the high temperature filtration dust remover 61 is detected in real time by the second temperature sensor, and the detected data is transmitted to the second controller 82, when the temperature of the air inlet of the high temperature filtration dust remover 61 exceeds the preset value, the second controller 82 sends a corresponding signal to the electric valve, the electric valve is opened, the nitrogen in the nitrogen tank 81 is sprayed to the high temperature filtration dust remover 61, and then the high temperature filtration dust remover 61 can be avoided from being on fire.
Further, as shown in fig. 1, the other end of the discharge duct 7 is provided with a detection assembly 71 and a reminding assembly 72, and the detection assembly 71 is used for detecting the concentration of the flue gas discharged through the other end of the discharge duct 7. When using, the concentration that discharges the external flue gas through discharge pipe 7 after detecting component 71 real-time detection processes multi-stage processing, when detecting flue gas concentration and surpassing the default, detecting component 71 can send corresponding signal for reminding subassembly 72, reminds the timely warning staff of subassembly 72 for the staff can be timely handle, prevents to cause the pollution to external environment.
As shown in fig. 1, the detecting assembly 71 includes a smoke concentration detector 73 and a third controller, the smoke concentration detector 73 is installed at the other end of the discharge duct 7, the smoke concentration detector 73 is electrically connected to the third controller, and the reminding assembly 72 is electrically connected to the third controller. When the smoke concentration detector 73 is used, the smoke concentration detector 73 detects the smoke concentration discharged to the outside in real time, detected data are transmitted to the third controller, and when the smoke concentration exceeds a preset value, the third controller can send a corresponding signal to the reminding component 72, so that the reminding component 72 can timely remind workers.
As shown in fig. 1, the reminding assembly 72 includes a buzzer 74 and a light-emitting LED lamp 75, and the buzzer 74 and the light-emitting LED lamp 75 are electrically connected to the third controller, respectively. When the smoke concentration detector 73 detects that the smoke concentration exceeds the preset value, the third controller can send corresponding control signals to the buzzer 74 and the light-emitting LED lamp 75, so that the buzzer 74 makes a sound, the light-emitting LED emits light, the workers can find problems timely and handle the problems timely, and pollution to the environment is avoided.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. The dry-method multistage dust removal system is characterized by comprising a conveying pipeline, a cooling dust removal component, a secondary dust removal component, a conveying component, a bell jar valve, a tertiary dust removal component and a discharge pipeline:
one end of the conveying pipeline is communicated with one end of the cooling and dust removing component, and the conveying pipeline is used for conveying the smoke dust to be treated into the cooling and dust removing component;
the other end of the cooling dust removal component is communicated with one end of the secondary dust removal component, and the cooling dust removal component is used for cooling smoke dust and removing primary dust;
the other end of the secondary dust removal component is communicated with one end of the conveying component, and the secondary dust removal component is used for carrying out secondary dust removal on the smoke dust;
the other end of the conveying component is communicated with an air inlet of the bell valve, and the conveying component is used for conveying smoke dust into the bell valve;
the air outlet of the bell jar valve is communicated with one end of the three-stage dust removal component;
the other end of the third-stage dust removal component is communicated with one end of the discharge pipeline, and the third-stage dust removal component is used for carrying out third-stage dust removal on the smoke dust.
2. The dry multistage dedusting system according to claim 1, wherein the cooling dedusting part comprises a cooling tower and a water spray assembly, the upper end of the cooling tower is communicated with one end of the conveying pipeline, the lower end of the cooling tower is communicated with one end of the secondary dedusting part, and the water spray assembly is installed on the side wall surface of the cooling tower.
3. The dry multi-stage dedusting system according to claim 2, wherein the water spray assembly comprises a plurality of atomizing nozzles mounted on a sidewall surface of the cooling tower, and a first controller electrically connected to the atomizing nozzles.
4. The dry multi-stage dedusting system of claim 3, wherein the water spray assembly further comprises a first temperature sensor mounted within the cooling tower at a junction of the cooling tower and the transport conduit, the first temperature sensor being electrically connected to the first controller.
5. The dry multistage dusting system of any of claims 1 to 4, whereby the secondary dusting component comprises at least one electrostatic precipitator, one end of which communicates with the other end of the cooling dusting component, the other end of which communicates with one end of the transport component.
6. The dry multistage dedusting system according to any one of claims 1 to 4, wherein the tertiary dedusting component comprises at least one high temperature filter deduster, an air inlet of the high temperature filter deduster is communicated with an air outlet of the bell jar valve, and an air outlet of the high temperature filter deduster is communicated with the discharge pipeline.
7. The dry multistage dust removal system according to claim 6, further comprising a fire extinguishing assembly installed at one side of the high temperature filter dust remover, the fire extinguishing assembly being used for detecting the temperature at the air inlet of the high temperature filter dust remover.
8. The dry multistage dust removal system according to claim 7, wherein the fire extinguishing assembly comprises a nitrogen tank, a second temperature sensor and a second controller, the nitrogen tank is located at one side of the high temperature filtration dust remover, an electric valve is arranged at an air outlet of the nitrogen tank, the electric valve is electrically connected with the second controller, the second temperature sensor is located at an air inlet of the high temperature filtration dust remover, and the second temperature sensor is electrically connected with the second controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202123446496.XU CN216856180U (en) | 2021-12-31 | 2021-12-31 | Dry-method multistage dust removal system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123446496.XU CN216856180U (en) | 2021-12-31 | 2021-12-31 | Dry-method multistage dust removal system |
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| Publication Number | Publication Date |
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| CN216856180U true CN216856180U (en) | 2022-07-01 |
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| CN202123446496.XU Active CN216856180U (en) | 2021-12-31 | 2021-12-31 | Dry-method multistage dust removal system |
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