CN219991486U - Dry quenching environment dust removal system - Google Patents
Dry quenching environment dust removal system Download PDFInfo
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- CN219991486U CN219991486U CN202320507486.2U CN202320507486U CN219991486U CN 219991486 U CN219991486 U CN 219991486U CN 202320507486 U CN202320507486 U CN 202320507486U CN 219991486 U CN219991486 U CN 219991486U
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- dry quenching
- flue gas
- dust removal
- flame arrester
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- 239000000428 dust Substances 0.000 title claims abstract description 394
- 238000010791 quenching Methods 0.000 title claims abstract description 245
- 230000000171 quenching effect Effects 0.000 title claims abstract description 245
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 169
- 239000003546 flue gas Substances 0.000 claims abstract description 169
- 239000000779 smoke Substances 0.000 claims abstract description 77
- 238000000034 method Methods 0.000 claims abstract description 49
- 230000008569 process Effects 0.000 claims abstract description 48
- 238000003860 storage Methods 0.000 claims abstract description 43
- 239000000571 coke Substances 0.000 claims description 88
- 238000001816 cooling Methods 0.000 claims description 72
- 238000007599 discharging Methods 0.000 claims description 54
- 238000000926 separation method Methods 0.000 claims description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 230000007613 environmental effect Effects 0.000 claims description 16
- 239000000498 cooling water Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000007257 malfunction Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000001314 paroxysmal effect Effects 0.000 description 12
- 239000007789 gas Substances 0.000 description 5
- 239000011261 inert gas Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003500 flue dust Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000004939 coking Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000005453 pelletization Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- Coke Industry (AREA)
Abstract
The embodiment of the utility model provides a dry quenching environment dust removal system, which comprises a dust remover, a chimney, a dust storage device and at least two dust removal fans, wherein the dust remover is arranged on the chimney; the flue gas inlet of the dust remover is communicated with each dry quenching device, and the flue gas outlet of the dust remover is communicated with each dust removing fan; the dust outlet of the dust remover is communicated with the dust storage device; the at least two dust removal fans are connected in parallel, the input ports of the dust removal fans connected in parallel are connected with the flue gas outlet of the dust remover, and the output ports of the dust removal fans connected in parallel are communicated with the chimney; the flue gas generated by each dry quenching device in the dry quenching process sequentially passes through a dust remover, a dust removing fan and a chimney, and is discharged from the chimney; the air quantity of the single dust removing fan is larger than the smoke quantity generated by all the dry quenching devices in the dry quenching process. The dry quenching environment dust removal system reduces the probability of stopping operation of the dry quenching device caused by the malfunction of the dry quenching environment dust removal system, and is beneficial to improving the production efficiency.
Description
Technical Field
The utility model relates to the technical field of dry quenching, in particular to a dry quenching environment dust removal system.
Background
At present, the dry quenching technology is widely applied to the coking process. In the coking process, two coke ovens can be adopted and matched with two dry quenching devices, and the two dry quenching devices run simultaneously and respectively load 50% of coke; when one of the dry quenching devices fails, the other dry quenching device is loaded with 100% coke.
Smoke is generated in the dry quenching process, if the smoke is directly discharged to cause environmental pollution, the smoke generated by the dry quenching device is required to be treated by an environmental dust removal system, and the treated smoke can reach the discharge standard. Usually, one dry quenching device corresponds to one environment dust removal system, and when one environment dust removal system fails, the other environment system can work normally. This arrangement has the problems of energy saving, large occupied area, high investment and the like.
In order to solve the above problems, a scheme of dedusting two dry quenching devices by one environmental dedusting system has appeared. However, when the environment dust removal system fails to stop running, the smoke generated by the two dry quenching devices cannot reach the emission standard, so that the dry quenching devices need to be stopped, and the production efficiency is reduced.
Disclosure of Invention
The embodiment of the utility model aims to provide a dry quenching environment dust removal system so as to reduce the probability of stopping operation of a dry quenching device caused by the failure of the dry quenching environment dust removal system, thereby improving the production efficiency. The specific technical scheme is as follows:
the embodiment of the utility model provides a dry quenching environment dust removal system which is used for removing dust from flue gas generated in a dry quenching process of at least one dry quenching device; the dry quenching environment dust removal system comprises a dust remover, a chimney, a dust storage device and at least two dust removal fans; the dust remover is provided with a dust remover flue gas inlet, a dust remover flue gas outlet and a dust remover dust outlet; the flue gas inlet of the dust remover is communicated with each dry quenching device, and the flue gas outlet of the dust remover is communicated with each dust removing fan; the dust outlet of the dust remover is communicated with the dust storage device; the at least two dust removal fans are connected in parallel, the input ports of the dust removal fans connected in parallel are connected with the flue gas outlet of the dust remover, and the output ports of the dust removal fans connected in parallel are communicated with the chimney; the flue gas generated by each dry quenching device in the dry quenching process sequentially passes through the dust remover, the dust removing fan and the chimney and is discharged from the chimney; the air quantity of the single dust removing fan is larger than the flue gas quantity generated by all the dry quenching devices in the dry quenching process.
In some embodiments of the utility model, the number of the dry quenching devices is two, and the flue gas generated in the dry quenching process of the two dry quenching devices is mixed and then is introduced into the dust remover;
the dust removal fan is configured to have an air volume larger than the flue gas volume generated by the two dry quenching devices in the dry quenching process.
In some embodiments of the present utility model, the dry quenching environmental dust removal system further includes a muffler, one end of the muffler is connected to the output ports of the at least two dust removal fans, the other end of the muffler is connected to the inlet of the chimney, and flue gas generated by each dry quenching device in the dry quenching process sequentially passes through the dust removal fans, the muffler and the chimney.
In some embodiments of the utility model, the dry quenching ambient dust removal system further comprises: a cooling circuit;
the cooling loop comprises a water supply device, a backwater storage device and water pipes, wherein the water pipes are arranged around the dust removal fans, the water supply device is used for providing cooling water, and the cooling water flows into the backwater storage device through the water pipes.
In some embodiments of the utility model, the dust collector further comprises: a dust collector air inlet;
the dry quenching environment dust removal system further comprises: the air supply device is used for introducing compressed air into the dust remover through the compressed air channel and the dust remover air inlet.
In some embodiments of the utility model, the dry quenching ambient dust removal system further comprises: cooling and separating the flame arrestor;
the cooling separation flame arrester is arranged between the dry quenching device and the dust remover and is used for cooling and dust separation of flue gas generated by the dry quenching device in the dry quenching process; and the cooling separation flame arrester is used for leading the cooled flue gas into the dust remover through a flue gas inlet of the dust remover and conveying the separated dust to a dust storage device for storage.
In some embodiments of the utility model, the cooling separation flame arrestor includes: a first smoke inlet of the flame arrester, a second smoke inlet of the flame arrester, a smoke outlet of the flame arrester and a dust outlet of the flame arrester;
the first smoke inlet of the flame arrester and the second smoke inlet of the flame arrester are connected with the dry quenching device and are used for leading the smoke generated by the dry quenching device into the cooling separation flame arrester;
the smoke outlet of the flame arrester is connected with the smoke inlet of the dust remover and is used for discharging smoke to the dust remover;
the dust outlet of the flame arrester is used for discharging the dust separated from the flue gas by the cooling separation flame arrester to the dust storage device.
In some embodiments of the utility model, the dry quenching ambient dust removal system further comprises: a pneumatic conveying system;
the dust outlet of the dust remover and the dust outlet of the flame arrester are respectively connected with the pneumatic conveying system;
the pneumatic conveying system is used for collecting dust separated from flue gas by the cooling separation flame arrestor and the dust remover, and transporting the dust to the dust storage device for storage.
In some embodiments of the utility model, the dry quenching device comprises a dry quenching furnace and a charging device, the charging device is arranged at the top of the dry quenching furnace, and coke enters the dry quenching furnace through the charging device;
the first smoke inlet of the flame arrester of the cooling separation flame arrester is connected with the loading device through a coke loading smoke channel, and is also connected with the dry quenching furnace through a discharging smoke channel and used for introducing coke loading smoke generated by the loading device and discharging smoke generated by the dry quenching furnace;
and a second smoke inlet of the flame arrester of the cooling separation flame arrester is connected with a coke discharging position of the dry quenching furnace through a coke discharging smoke channel and is used for introducing coke discharging smoke generated at the coke discharging position of the dry quenching furnace.
In some embodiments of the utility model, the char-bearing flue gas enters the upper portion of the cooling separation flame arrestor through the char-bearing flue gas channel; the scattered smoke enters the upper part of the cooling separation flame arrester through the scattered smoke channel; and the coke discharging flue gas enters the lower part of the cooling separation flame arrester through the coke discharging flue gas channel.
The dry quenching environment dust removal system is used for removing dust from flue gas generated in the dry quenching process of at least one dry quenching device; the dry quenching environment dust removal system comprises a dust remover, a chimney, a dust storage device and at least two dust removal fans; the dust outlet of the dust remover is communicated with the dust storage device, and the dust separated by the dust remover is transported to the dust storage device; the at least two dust removal fans are connected in parallel, the input ports of the dust removal fans connected in parallel are connected with the flue gas outlet of the dust remover, and the output ports of the dust removal fans connected in parallel are communicated with the chimney; so set up, any one of the dust removal fans of parallel connection can be independent operation, and the intercommunication of whole dry quenching environment dust pelletizing system can be realized to independent start one of them dust removal fan promptly. The flue gas generated by each dry quenching device in the dry quenching process sequentially passes through a dust remover, a dust removing fan and a chimney, and is discharged from the chimney; the air quantity of the single dust removal fan is larger than the flue gas quantity generated by the dry quenching device in the dry quenching process, so that one of the dust removal fans connected in parallel is started, the flue gas treatment requirement can be met, and at the moment, the dry quenching environment dust removal system can normally operate.
In the prior art, when a dust removal system of a coke dry quenching environment fails, the flue gas generated by the coke dry quenching device cannot meet the requirement of flue gas emission, so that the coke dry quenching device needs to stop running. The malfunction of the dust removal system in the dry quenching environment is usually caused by the malfunction of the dust removal fan.
The dust removal fans connected in parallel in the dry quenching environment dust removal system are standby fans. When the working dust removing fan fails, the dust removing fan is switched to a stop state, and one dust removing fan connected in parallel with the dust removing fan is switched to a working state, so that the normal operation of the dry quenching environment dust removing system can be ensured, the flue gas generated by the dry quenching device can meet the flue gas emission requirement, the continuous operation of the dry quenching device is ensured, the probability of the dry quenching device stopping operation caused by the failure of the dry quenching environment dust removing system is greatly reduced, and the production efficiency is improved.
The dry quenching environment dust removal system provided by the embodiment of the utility model can reduce the probability of stopping the operation of the dry quenching device caused by the malfunction of the dry quenching environment dust removal system, and is beneficial to improving the production efficiency. Of course, it is not necessary for any one product to practice the utility model to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a diagram illustrating an example of a dry quenching environmental dust removal system according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of the connection relationship of the dry quenching environmental dust removal system according to the embodiment shown in FIG. 1;
FIG. 3 is an enlarged view of a portion of the first portion of FIG. 1 (showing the cooling separation flame arrestor and the pneumatic conveying system);
FIG. 4 is an enlarged view of a portion of the second section of FIG. 1 (showing a dust removal blower, muffler, cooling circuit, and chimney);
FIG. 5 is an enlarged view of a portion of the third section of FIG. 1 (showing the construction of the dust catcher section, the cooling separator flame arrestor and the pneumatic conveying system);
fig. 6 is an enlarged view of a portion of the fourth section of fig. 1 (showing the dry quenching furnace, coke drum, charging device, and coke discharge).
Reference numerals illustrate:
a dry quenching environment dust removal system 1; a dry quenching furnace 2; loading the device 3; a coke pot 4; a coke discharging position 5; a dust cover 501; a coke discharge chute 502; a flat gate ash discharge opening 503; dry quenching Jiao Fengji; a process belt conveyor 6; top pre-storage bulk 7; a dry quenching device 8;
a dust remover 10; a dust collector flue gas inlet 11; a dust collector air inlet 12; a dust remover flue gas outlet 13; a dust outlet 14 of the dust remover; a chimney 20; a dust removal fan 30; a motor 31; a muffler 40; a cooling circuit 50; a water supply device 51; a return water storage device 52; a water pipe 53; a water inlet pipe 531; a return pipe 532; cooling the separation flame arrestor 60; a flame arrester first flue gas inlet 61; a flame arrestor second flue gas inlet 62; a flame arrester flue gas outlet 63; a flame arrestor dust outlet 64; a pneumatic conveying system 70; a cartridge pump 71; a feed port 711; a discharge port 712; an air inlet 713; a dust storage device 80; an air supply device 90; a compressed air passage 91; a gas tank 92; an electro-pneumatic valve 93; a coke-charging flue gas channel 101; a bleed flue gas channel 102; a coke discharge flue gas channel 103; a first valve 110.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by the person skilled in the art based on the present utility model are included in the scope of protection of the present utility model.
The dry quenching process is a quenching process method in which red Jiao Jiangwen is cooled by inert gas relative to wet quenching. In the process of the dry quenching process, red coke is filled into the dry quenching furnace from the top of the dry quenching furnace in the dry quenching device, low-temperature inert gas is blown into a cooling Duan Gongjiao layer of the dry quenching furnace by a circulating fan, red Jiao Xianre is absorbed, cooled coke is discharged from the bottom of the dry quenching furnace, high-temperature inert gas discharged from an annular flue of the dry quenching furnace flows through a dry quenching process boiler to perform heat exchange, steam is generated by the boiler, the cooled inert gas is blown into the dry quenching furnace again by the circulating fan, and the inert gas is recycled in a closed system. In the process, smoke is generated, if the smoke is directly discharged to cause environmental pollution, the smoke needs to be treated by adopting a dry quenching environmental dust removal system, so that the smoke can reach the discharge standard.
The embodiment of the utility model provides a dry quenching environment dust removal system 1, as shown in fig. 1 to 3, wherein the dry quenching environment dust removal system 1 is used for removing dust from flue gas generated in a dry quenching process of at least one dry quenching device 8; the dry quenching environment dust removal system 1 comprises a dust remover 10, a chimney 20, a dust storage device 80 and at least two dust removal fans 30; the dust remover 10 has a dust remover flue gas inlet 11, a dust remover flue gas outlet 13 and a dust remover dust outlet 14; the dust remover flue gas inlet 11 is communicated with each dry quenching device 8, and the dust remover flue gas outlet 13 is communicated with each dust removing fan 30; the dust outlet 14 of the dust remover is communicated with a dust storage device 80; the at least two dust removal fans 30 are connected in parallel, the input ports of the dust removal fans 30 connected in parallel are connected with the dust remover flue gas outlet 13, and the output ports of the dust removal fans 30 connected in parallel are communicated with the chimney 20; the flue gas generated by each dry quenching device 8 in the dry quenching process sequentially passes through the dust remover 10, the dust removing fan 30 and the chimney 20, and is discharged from the chimney 20; wherein, the air quantity of a single dust removal fan 30 is larger than the flue gas quantity generated by all the dry quenching devices 8 in the dry quenching process.
The dry quenching environment dust removal system 1 is used for removing dust from flue gas generated in a dry quenching process of at least one dry quenching device 8; the dry quenching environment dust removal system 1 comprises a dust remover 10, a chimney 20, a dust storage device 80 and at least two dust removal fans 30; the dust outlet 14 of the dust remover is communicated with the dust storage device 80, and the dust separated by the dust remover 10 is transported to the dust storage device 80; the at least two dust removal fans 30 are connected in parallel, the input ports of the dust removal fans 30 connected in parallel are connected with the dust remover flue gas outlet 13, and the output ports of the dust removal fans 30 connected in parallel are communicated with the chimney 20; so set up, any one of the dust removal fans 30 of parallel connection is can independent work, promptly singly starts one of them dust removal fan 30 and can realize the intercommunication of whole dry quenching environment dust pelletizing system 1. The flue gas generated by each dry quenching device 8 in the dry quenching process sequentially passes through the dust remover 10, the dust removing fan 30 and the chimney 20, and is discharged from the chimney 20; the air quantity of the single dust removal fan 30 is larger than the flue gas quantity generated by the dry quenching device 8 in the dry quenching process, so that one of the dust removal fans 30 connected in parallel is started, the flue gas treatment requirement can be met, and at the moment, the dry quenching environment dust removal system 1 can normally operate.
In the prior art, when the dry quenching environment dust removal system 1 fails, the flue gas generated by the dry quenching device 8 cannot meet the requirement of flue gas emission, so that the dry quenching device 8 needs to stop running. The malfunction of the dry quenching ambient dust removal system 1 is typically due to the malfunction of the dust removal fan 30.
The dust removing fans 30 connected in parallel in the dry quenching environment dust removing system 1 are standby fans. When the working dust removing fan 30 breaks down, only the dust removing fan 30 is required to be switched, the broken dust removing fan 30 is switched to be in a stop state, and one dust removing fan 30 connected in parallel with the broken dust removing fan 30 is switched to be in a working state, so that the normal operation of the dry quenching environment dust removing system 1 can be ensured, the flue gas generated by the dry quenching device 8 can meet the flue gas emission requirement, the continuous operation of the dry quenching device 8 is ensured, the probability of the dry quenching device 8 stopping operation caused by the fault of the dry quenching environment dust removing system 1 is greatly reduced, and the production efficiency is improved.
In the embodiment shown in fig. 1 and 2, the number of the dust removing fans 30 is two, the two dust removing fans 30 are connected in parallel, and the input ports of the two dust removing fans 30 and the dust remover flue gas outlet 13 can be connected through a three-way pipeline. When the dry quenching environment dust removal system 1 works normally, a dust removal fan 30 is started; when the dust removing fan 30 fails, the operation of the other dust removing fan 30 is switched to ensure the continuous operation of the dry quenching environment dust removing system 1. Compared with the arrangement of more dust removal fans 30, the arrangement of two dust removal fans 30 has smaller occupied area and lower cost, can reduce the probability of the dry quenching device 8 stopping operation caused by the failure of the dry quenching environment dust removal system 1, and can save cost and space.
In the embodiment shown in fig. 1 and 2, the number of the dry quenching devices 8 is two, and flue gas generated in the dry quenching process of the two dry quenching devices 8 is mixed and then is introduced into the dust remover 10; the single dust removal fan 30 is configured to have an air volume greater than the amount of smoke generated by the two dry quenching devices 8 during the dry quenching process. The air quantity of the single dust removal fan 30 is larger than the flue gas quantity generated by the two dry quenching devices 8 in the dry quenching process, so that the treatment requirement of the flue gas quantity generated by the two dry quenching devices 8 can be met by the dry quenching environment dust removal system 1.
It can be understood that in other embodiments, the number of the dry quenching devices 8 may be one or more, which is not limited in the present utility model, and all the dry quenching devices 8 are connected with the same dry quenching environmental dust removal system 1, so long as the air volume of each dust removal fan 30 in the dry quenching environmental dust removal system 1 is ensured, so as to meet the requirement of treating the flue gas volume generated by all the dry quenching devices 8.
In another embodiment, if the floor space and the cost are not limited, under the condition that the number of the dry quenching devices 8 is two, each dry quenching device 8 can be respectively matched with the dry quenching environment dust removal system 1 provided by the embodiment of the utility model, and as each dry quenching environment dust removal system 1 can be provided with two dust removal fans 30, the two dry quenching devices 8 can be ensured to continuously operate, and the stability of the production process is facilitated to be ensured.
In the embodiment shown in fig. 1, fig. 2 and fig. 4, the dry quenching environmental dust removal system 1 further includes a muffler 40, one end of the muffler 40 is connected with the output ports of at least two dust removal fans 30, the other end is connected with the inlet of the chimney 20, and the flue gas generated by each dry quenching device 8 in the dry quenching process sequentially passes through the dust removal fans 30, the muffler 40 and the chimney 20. The muffler 40 serves to reduce noise generated when smoke is discharged.
In the embodiment shown in fig. 4, the dry quenching ambient dust removal system 1 further comprises a cooling circuit 50; the cooling circuit 50 includes a water supply device 51, a return water storage device 52, and a water pipe 53, the water pipe 53 is disposed around each dust removing fan 30, the water supply device 51 is used for supplying cooling water, and the cooling water flows into the return water storage device 52 through the water pipe 53.
The water pipe 53 is arranged around the dust removal fan 30, and cooling water provided by the water supply device 51 flows into the backwater device through the water pipe 53 to exchange heat with the dust removal fan 30, so that the dust removal fan 30 is cooled. Specifically, the water pipe 53 may include a water inlet pipe 531 and a water return pipe 532, and both sides of the dust removing fan 30 are provided with the water inlet pipe 531 and the water return pipe 532; compared with the water pipe 53 arranged on one side, the heat exchange efficiency of the mode of double-side arrangement is higher, and the heat dissipation effect is better.
In other embodiments of the present utility model, the water pipe 53 may also be disposed around the dust removing fan 30 to dissipate heat from the dust removing fan 30, which is not limited in the present utility model.
In the embodiment shown in fig. 1, 2 and 5, the dust collector 10 further comprises a dust collector air inlet 12; the dry quenching ambient dust removal system 1 further comprises an air supply device 90 and a compressed air channel 91, the air supply device 90 introducing compressed air into the dust collector 10 through the compressed air channel 91 and the dust collector air inlet 12. Thus, the dust adhering to the inner wall of the dust catcher 10 falls off from the inner wall of the dust catcher 10. After a period of use of the dust collector 10, dust accumulates on the inner wall, and as dust accumulates, the efficiency of the dust collector 10 decreases, so that periodic dust removal is required. Compressed air is introduced into the dust remover 10 to wash the inner wall of the dust remover 10, so that the ash removing effect is achieved. Specifically, the air supply device 90 may supply compressed air having a pressure of 0.6 Mpa.
Further, an air tank 92 may be provided on the compressed air passage 91, and the air tank 92 may make the air pressure of the compressed air introduced into the dust collector 10 more stable.
In the embodiment shown in fig. 1-3, the dry quenching ambient dust removal system 1 further comprises a cooling separator flame arrestor 60; the cooling separation flame arrester 60 is arranged between the dry quenching device 8 and the dust remover 10 and is used for cooling and dust separation of flue gas generated by the dry quenching device 8 in the dry quenching process; the cooling separation flame arrester 60 introduces the cooled flue gas into the dust remover 10 through the dust remover flue gas inlet 11, and conveys the separated dust to the dust storage device 80 for storage.
Specifically, as shown in fig. 1, 2 and 5, the cooling separation flame arrestor 60 may include: a flame arrester first flue gas inlet 61, a flame arrester second flue gas inlet 62, a flame arrester flue gas outlet 63, and a flame arrester dust outlet 64. The first smoke inlet 61 of the flame arrester and the second smoke inlet 62 of the flame arrester are connected with the dry quenching device 8, and are used for leading the smoke generated by the dry quenching device 8 into the cooling separation flame arrester 60; the flame arrester flue gas outlet 63 is connected with the dust remover flue gas inlet 11 and is used for discharging flue gas to the dust remover 10; the flame arrestor dust outlet 64 is used to discharge dust separated from the flue gas by the cooling separation flame arrestor 60 to the dust storage 80.
In the embodiment, the cooling separation flame arrester 60 cools and separates dust from flue gas generated in the dry quenching process of the dry quenching device 8; the flue gas after being processed by the cooling separation flame arrester 60 enters the dust remover 10, the dust remover 10 further purifies the flue gas to reduce the dust content in the flue gas, and the dust content of the flue gas after being purified by the dust remover 10 is lower than the allowable emission concentration of the current country, thereby meeting the requirements of the national emission standard.
Specifically, the cooling separator flame arrestor 60 may be a paroxysmal high temperature smoke cooling separator flame arrestor. The flue gas generated in the dry quenching process is paroxysmal, the flue gas amount is large, the duration is short, and the heat exchange efficiency of the flame arrester is higher by adopting paroxysmal high-temperature flue dust cooling separation. The dust remover 10 can be a pulse bag type dust remover, adopts an off-line pulse ash removing mode, and adopts an antistatic film-coated material as a filter material. The pulse bag type dust collector has the advantages of large treatment air quantity, small occupied area, high purification efficiency, reliable work, simple structure and the like, and the dust collection efficiency can reach more than 99 percent; compared with online ash removal, the ash removal effect of offline ash removal is more thorough; the adopted antistatic filter material has no electric spark and is not easy to explode.
In the embodiment shown in fig. 5, an electro-pneumatic valve 93 may be disposed between the dust collector flue gas inlet 11 and the flame arrester flue gas outlet 63, so as to control the connection and disconnection between the two. The electro-pneumatic valve 93 may be in communication with a flue gas duct in communication between the dust collector flue gas inlet 11 and the flame arrester flue gas outlet 63 via a duct. The electro-pneumatic valve 93 may be controlled by compressed air, in particular, the electro-pneumatic valve 93 may be connected to the air supply 90 via a compressed air channel 91, the electro-pneumatic valve 93 being driven by compressed air provided by the air supply 90.
In the embodiments shown in fig. 1, 2, 3 and 5, the dry quenching environmental dust removal system 1 further comprises a pneumatic conveying system 70; the dust outlet 14 of the dust remover and the dust outlet 64 of the flame arrester are respectively connected with a pneumatic conveying system 70; the pneumatic conveying system 70 is used for collecting and cooling dust separated from the flue gas by the flame arrestor 60 and the dust remover 10, and transporting the dust to the dust storage device 80 for storage. The pneumatic conveying system 70 may send the collected dust to a dust storage device 80 (coke powder silo). And then, the collected dust is humidified by a humidifying agitator and then is transported out periodically by an automobile.
Specifically, as shown in fig. 1 and 5, the dust collector 10 is a pulse bag type dust collector, and may include a plurality of compartments, and NO1 and NO2 shown in fig. 5 are each one compartment; each compartment is provided with a dust collector flue gas outlet 13, and all dust collector flue gas outlets 13 are connected together through a pipeline and an inlet of a dust collection fan 30.
The pneumatic conveying system 70 may comprise a plurality of bin pumps 71, the bin pumps 71 and the compartments of the dust collector 10 being arranged in a one-to-one correspondence, each compartment having a dust collector flue gas inlet 11 and a dust collector dust outlet 14. As shown in fig. 3, a cooling separator flame arrestor 60 may be provided with a cartridge pump 71. Dust separated from the flue gas is transported to the dust storage device 80 by the bin pump 71. As shown in fig. 3, the bin pump 71 corresponding to the cooling separation flame arrester 60 comprises a feed port 711, a discharge port 712 and an air inlet 713, wherein the feed port 711 is connected with the flame arrester dust outlet 64, the discharge port 712 is connected with the dust removing device 80 through a pipeline, the air inlet 713 is connected with an air inlet device (not shown in the figure), the air inlet device is used for introducing air into the bin pump 71 through the air inlet 713, and the air drives dust in the bin pump 71 to flow out from the discharge port 712 and enter the dust storing device 80 along the pipeline. Each of the bin pumps 71 corresponding to the compartments of the dust remover 10 is identical in structure to the bin pump 71 corresponding to the cooling separation flame arrestor 60, except that the feed port 711 is connected to the dust remover dust outlet 14 of the corresponding compartment.
In the embodiments shown in fig. 1, 2 and 6, the dry quenching device 8 comprises a dry quenching furnace 2 and a charging device 3, the charging device 3 is arranged at the top of the dry quenching furnace 2, and coke enters the dry quenching furnace 2 through the charging device 3; the first smoke inlet 61 of the cooling separation flame arrester 60 is connected with the loading device 3 through a coke loading smoke channel 101, and the first smoke inlet 61 of the flame arrester is also connected with the dry quenching furnace 2 through a discharging smoke channel 102 and is used for introducing coke loading smoke generated by the loading device 3 and discharging smoke generated by the dry quenching furnace 2; the second smoke inlet 62 of the cooling separation flame arrester 60 is connected with the coke discharging position 5 of the dry quenching furnace 2 through a coke discharging smoke channel 103 and is used for introducing coke discharging smoke generated by the coke discharging position 5 of the dry quenching furnace 2.
As shown in fig. 6, the dry quenching device 8 further includes a coke drum 4, in which coke is stored in the coke drum 4, and the coke drum 4 pours coke from above the charging device 3, and the coke enters the dry quenching furnace 2 through the charging device 3.
The flue gas generated by the dry quenching device 8 in the dry quenching process is mainly divided into coke loading flue gas, scattered flue gas and coke discharging flue gas. The coke-charging flue gas is generated when red coke is charged into the dry quenching furnace 2, and before the red coke is fed into the dry quenching furnace 2, a top cover of the dry quenching furnace 2 is required to be opened, and a large amount of smoke dust can escape outwards when the top cover is opened because the dry quenching furnace 2 is in a positive pressure state; the diffused smoke is the smoke generated in the dry quenching process of the dry quenching furnace 2, and the gas containing smoke dust can be diffused by a diffusing pipe of a pre-storing chamber of the dry quenching furnace 2; the coke discharging flue gas is the flue gas generated when the coke is discharged from the dry quenching furnace 2, and a large amount of dust can be generated in the range from the coke discharging position 5 of the dry quenching furnace 2 to the blanking point of the process belt conveyor 6.
As shown in fig. 6, dust source points collected by the dry quenching environment dust removal system 1 mainly include: the top cover coke loading part (loading device 3) of the dry quenching furnace 2, the top pre-storage scattering port 7 of the dry quenching furnace 2 and the coke discharging part 5 of the dry quenching furnace 2.
The main flue gas sources of the coke discharging position 5 of the dry quenching furnace 2 comprise: the coke discharging chute 502 and the coke discharging blanking point (within the coverage range of the dust removing cover 501) at the bottom of the dry quenching furnace 2, the dry quenching Jiao Fengji 504, the flat gate ash discharging port 503. A dust hood 501 can be arranged on the process belt conveyor 6, and the dust hood 501, a coke discharging chute 502 and a flat gate ash discharging port 503 are connected with the coke discharging flue gas channel 103 to realize flue gas recovery of the coke discharging position 5.
In the embodiment shown in fig. 1 and 4, the char-laden flue gas enters the upper portion of the cooling separation flame arrestor 60 through the char-laden flue gas channel 101; the diffused smoke enters the upper part of the cooling separation flame arrester 60 through the diffused smoke channel 102; the coke discharging flue gas enters the lower part of the cooling separation flame arrester 60 through the coke discharging flue gas channel 103. The coke-loading flue gas and the scattered flue gas are high-temperature flue gas containing inflammable and explosive gas components and sparks, the cooling separation flame arrester 60 can cool the coke-loading flue gas and the scattered flue gas, the cooled flue gas and the coke-discharging flue gas containing high-concentration coke dust are mixed in the cooling separation flame arrester 60, and the temperature of the mixed flue gas is lower than 110 ℃.
Further, valves may be respectively provided on the coke loading flue gas channel 101, the diffusing flue gas channel 102 and the coke discharging flue gas channel 103 to switch on and off the flue gas channels. In particular, an electric wear-resistant dust-gas butterfly valve can be adopted, and has the advantages of wear resistance, high reliability and convenient operation.
In the embodiment shown in fig. 3, the dry quenching environmental dust removal system 1 further includes a first valve 110, the coke discharging flue gas channel 103 is communicated with the coke charging flue gas channel 101 and the diffusing flue gas channel 102 through a connecting pipeline, the first valve 110 is arranged on the connecting pipeline, and the first valve 110 is configured to connect and disconnect the coke discharging flue gas channel 103 with the coke charging flue gas channel 101 and the diffusing flue gas channel 102. When the temperature of the flue gas in the coke discharging flue gas channel 103 is lower and coke is not contained, the first valve 110 can be in an open state, the coke discharging flue gas channel 103 is communicated with the first flue gas inlet 61 of the flame arrester, and the coke discharging flue gas can cool the cooling separation flame arrester 60.
In some embodiments of the utility model, flue gas generated by the dry quenching device 8 in the dry quenching process sequentially passes through the paroxysmal high-temperature flue dust cooling separation flame arrester, the pulse bag type dust collector, the dust removal fan 30, the muffler 40 and the chimney 20, and is discharged from the chimney 20; the dust separated by the paroxysmal high-temperature smoke cooling separation flame arrester and the pulse bag type dust collector is transported to a coke powder storage bin through a pneumatic conveying system 70.
Specifically, coke-loading flue gas at the coke loading position of the top cover of the dry quenching furnace 2 enters the upper part of the paroxysmal high-temperature smoke cooling separation flame arrester through a coke-loading flue gas channel 101; the scattered smoke of the scattering port 7 is pre-stored at the top of the dry quenching furnace 2, and enters the upper part of the paroxysmal high-temperature smoke cooling separation flame arrester through the scattered smoke channel 102; the coke discharging flue gas at the bottom of the dry quenching furnace 2, at the coke discharging chute 502, the coke discharging blanking point and the like enters the lower part of the paroxysmal high-temperature smoke cooling separation flame arrester through the coke discharging flue gas channel 103; cooling the coke-loading flue gas and the scattered flue gas by the paroxysmal high-temperature smoke cooling separation flame arrester, and mixing the cooled coke-loading flue gas and the cooled scattered flue gas with the coke-discharging flue gas; the paroxysmal high-temperature smoke cooling and separating flame arrestor removes dust from the mixed smoke, and the separated dust is collected by the pneumatic conveying system 70.
The flue gas (the temperature is lower than 110 ℃) after being cooled and dedusted by the paroxysmal high-temperature flue dust cooling separation flame arrester enters a pulse bag type dust collector; the pulse bag type dust collector purifies the flue gas, and the purified flue gas meets the requirements of national emission standards; the purified flue gas sequentially passes through the dust removing fan 30, the muffler 40 and the chimney 20, and is discharged from the chimney 20. Dust separated by the pulse bag house is collected by the pneumatic conveying system 70.
The pneumatic conveying system 70 conveys the smoke separated by the paroxysmal high-temperature smoke cooling separation flame arrester and the pulse bag type dust collector to a coke powder storage bin, and the smoke is humidified by a humidifying stirrer and then is transported outwards periodically by an automobile.
Because the coke loading port periodically loads coke, the smoke dust amount at the coke loading position is larger and periodically changes, and in order to realize the change control of the dust removal period at the coke loading position, an electric valve can be arranged on a dust removal pipeline of the coke loading port and is interlocked with corresponding process equipment; the dust removing fan 30 is driven by a motor 31, and the dust removing fan 30 can adopt a variable frequency motor; when the coke is filled, the electric valve is opened, the dust removing fan 30 runs at high speed, and high-temperature flue gas is removed; and the electric valve is closed in the coke loading interval, the fan runs at medium speed, and the normal-temperature dust gas is dedusted, so that the air quantity is reduced, and the running energy consumption is further reduced.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model are included in the protection scope of the present utility model.
Claims (10)
1. The dry quenching environment dust removal system is characterized by being used for removing dust from flue gas generated in the dry quenching process of at least one dry quenching device (8); the dry quenching environment dust removal system comprises: the dust collector comprises a dust collector (10), a chimney (20), a dust storage device (80) and at least two dust collection fans (30);
the dust remover (10) is provided with a dust remover flue gas inlet (11), a dust remover flue gas outlet (13) and a dust remover dust outlet (14); the dust remover flue gas inlet (11) is communicated with each dry quenching device (8), and the dust remover flue gas outlet (13) is communicated with each dust removing fan (30); the dust outlet (14) of the dust remover is communicated with the dust storage device (80);
at least two dust removal fans (30) are connected in parallel, the input ports of the dust removal fans (30) connected in parallel are connected with the flue gas outlet (13) of the dust remover, and the output ports of the dust removal fans (30) connected in parallel are communicated with the chimney (20);
flue gas generated by each dry quenching device (8) in the dry quenching process sequentially passes through the dust remover (10), the dust removing fan (30) and the chimney (20) and is discharged from the chimney (20);
the air quantity of the single dust removal fan (30) is larger than the flue gas quantity generated in the dry quenching process of all the dry quenching devices (8).
2. The dry quenching environmental dust removal system according to claim 1, wherein the number of the dry quenching devices (8) is two, and flue gas generated in the dry quenching process of the two dry quenching devices (8) is mixed and then introduced into the dust remover (10);
the dust removal fan (30) is configured to have an air quantity larger than the flue gas quantity generated by the two dry quenching devices (8) in the dry quenching process.
3. The dry quenching environmental dust removal system as claimed in claim 1, further comprising a muffler (40), wherein one end of the muffler (40) is connected to the output ports of the at least two dust removal fans (30), and the other end is connected to the inlet of the chimney (20), and flue gas generated by each dry quenching device (8) in the dry quenching process sequentially passes through the dust removal fans (30), the muffler (40) and the chimney (20).
4. The dry quenching ambient dust removal system as set forth in claim 1, further comprising: a cooling circuit (50);
the cooling circuit (50) comprises a water supply device (51), a backwater storage device (52) and water pipes (53), wherein the water pipes (53) are arranged around the dust removal fans (30), the water supply device (51) is used for supplying cooling water, and the cooling water flows into the backwater storage device (52) through the water pipes (53).
5. The dry quenching ambient dust removal system as claimed in claim 1, wherein the dust remover (10) further comprises: a dust collector air inlet (12);
the dry quenching environment dust removal system further comprises: an air supply device (90) and a compressed air channel (91), wherein the air supply device (90) is used for introducing compressed air into the dust collector (10) through the compressed air channel (91) and the dust collector air inlet (12).
6. The dry quenching ambient dust removal system as set forth in claim 1, further comprising: a cooling separation flame arrester (60);
the cooling separation flame arrester (60) is arranged between the dry quenching device (8) and the dust remover (10) and is used for cooling and dust separation of flue gas generated in the dry quenching process of the dry quenching device (8); the cooling separation flame arrester (60) is used for leading the cooled flue gas into the dust remover (10) through the dust remover flue gas inlet (11) and conveying the separated dust to the dust storage device (80) for storage.
7. The dry quenching environmental dust removal system of claim 6,
the cooling separation flame arrester (60) comprises: a flame arrester first flue gas inlet (61), a flame arrester second flue gas inlet (62), a flame arrester flue gas outlet (63) and a flame arrester dust outlet (64);
the first smoke inlet (61) of the flame arrester and the second smoke inlet (62) of the flame arrester are connected with the dry quenching device (8) and are used for leading the smoke generated by the dry quenching device (8) into the cooling separation flame arrester (60);
the flame arrester flue gas outlet (63) is connected with the dust remover flue gas inlet (11) and is used for discharging flue gas to the dust remover (10);
the flame arrester dust outlet (64) is used for discharging dust separated from the flue gas by the cooling separation flame arrester (60) to a dust storage device (80).
8. The dry quenching ambient dust removal system as set forth in claim 7, further comprising: a pneumatic conveying system (70);
the dust remover dust outlet (14) and the flame arrester dust outlet (64) are respectively connected with the pneumatic conveying system (70);
the pneumatic conveying system (70) is used for collecting dust separated from flue gas by the cooling separation flame arrestor (60) and the dust remover (10), and conveying the dust to the dust storage device (80) for storage.
9. The dry quenching environmental dust removal system of claim 6,
the coke dry quenching device (8) comprises a dry quenching furnace (2) and a loading device (3), wherein the loading device (3) is arranged at the top of the dry quenching furnace (2), and coke enters the dry quenching furnace (2) through the loading device (3);
the first smoke inlet (61) of the flame arrester of the cooling separation flame arrester (60) is connected with the loading device (3) through a coke loading smoke channel (101), and the first smoke inlet (61) of the flame arrester is also connected with the dry quenching furnace (2) through a discharging smoke channel (102) and is used for introducing coke loading smoke generated by the loading device (3) and discharging smoke generated by the dry quenching furnace (2);
the second smoke inlet (62) of the flame arrester of the cooling separation flame arrester (60) is connected with the coke discharging position (5) of the dry quenching furnace (2) through a coke discharging smoke channel (103) and is used for introducing coke discharging smoke generated by the coke discharging position (5) of the dry quenching furnace (2).
10. The dry quenching environmental dust removal system of claim 9,
the coke loading flue gas enters the upper part of the cooling separation flame arrester (60) through the coke loading flue gas channel (101); the scattered smoke enters the upper part of the cooling separation flame arrester (60) through the scattered smoke channel (102); the coke discharging flue gas enters the lower part of the cooling separation flame arrester (60) through the coke discharging flue gas channel (103).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202320507486.2U CN219991486U (en) | 2023-03-16 | 2023-03-16 | Dry quenching environment dust removal system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320507486.2U CN219991486U (en) | 2023-03-16 | 2023-03-16 | Dry quenching environment dust removal system |
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