CN204404215U - Utilize the system of adjacent stove negative pressure bug dusting warehousing powder - Google Patents

Utilize the system of adjacent stove negative pressure bug dusting warehousing powder Download PDF

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Publication number
CN204404215U
CN204404215U CN201520009511.XU CN201520009511U CN204404215U CN 204404215 U CN204404215 U CN 204404215U CN 201520009511 U CN201520009511 U CN 201520009511U CN 204404215 U CN204404215 U CN 204404215U
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China
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powder
coal
boiler
outlet
entrance
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CN201520009511.XU
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Chinese (zh)
Inventor
周虹光
汪华剑
闵宏斌
严响林
白鹏
房凡
张朋飞
张伟
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Xian Xire Boiler Environmental Protection Engineering Co Ltd
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Xian Xire Boiler Environmental Protection Engineering Co Ltd
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Abstract

The utility model discloses a kind of system utilizing adjacent stove negative pressure bug dusting warehousing powder, comprise the burner of boiler first and boiler second, Powder discharging fan, coal pulverizer, coal bunker, feeder, mill separator, pulverized-coal collector, wood scraps separator, powder storehouse, put tube cell coal dust isolating valve, machine supplying powder, put tube cell air-quantity adjusting valve, bellows, an air and powder mixer, put tube cell transportation work style amount wind speed measuring device, put the adjacent stove isolating valve of tube cell etc.The utility model can realize effective conveying of coal dust between two boiler compound storehouses, and wherein after a compressor emergency shutdown, safe and effective removing powder warehousing powder, ensure powder storehouse safely, prevent spontaneous combustion of pulverized coal in powder storehouse or blast.The utility model only needs to increase pipeline and respective valves, do not need to increase any energy consumption equipment, there is the features such as system is simple and reliable, maintenance workload is low, when can save conventional blowing out be burn empty powder storehouse help fuel oil, empty the needs in powder storehouse when also can meet unexpected blowing out.

Description

Utilize the system of adjacent stove negative pressure bug dusting warehousing powder
Technical field
The utility model belongs to coal-fired power generator set field, is specifically related to a kind of system utilizing adjacent stove negative pressure bug dusting warehousing powder.
Background technology
The ball type pulverizer system station boiler, the hot blast and the raw coal that enter pulverized coal preparation system form wind powder mixture after mill drying coal dust, under the swabbing action of the negative pressure of mill exhauster foundation, apparatus for separating fine powder from coarst powder is entered by powder process pipeline, qualified coal dust is admitted to powder storehouse, again by machine supplying powder and air and powder mixer, under the conveying of hot blast, coal dust is sent into burner hearth and burn.Powder storehouse is the visual plant of this pulverized coal preparation system, and qualified coal dust stores in powder storehouse, makes the operation that pulverized coal preparation system and combustion system can be relatively independent, strengthens security and the flexibility of system cloud gray model.But the existence in powder storehouse, and coal dust storage in powder storehouse is larger, also much potential danger and inconvenience is brought to the ball type pulverizer system, such as during boiler down, need, under throwing oil condition, sky is burnt in powder storehouse, need the furnace outage time of prolonged boiler, waste great amount of fuel oil and electric energy, particularly under the unplanned urgent blowing out state of boiler, there is spontaneous combustion and risk of explosion in powder of depositing a large amount of in powder storehouse, is huge potential safety hazard, if adopt the residual powder method in artificial removing powder storehouse, coal dust on the one hand in powder storehouse is all wasted, serious again contaminated environment; On the other hand also need a large amount of manpower, expend the longer time and remove, both affected service work process, also form important potential safety hazard.
Utility model content
The purpose of this utility model is to overcome the problems referred to above, a kind of system utilizing adjacent stove negative pressure bug dusting warehousing powder is provided, it can realize mutually having bad luck of two boiler milling system powder storehouse coal dusts, do not need to increase any power-equipment, by means of only pipeline, valve, two pulverized coal preparation systems are connected, system are simple, reliability is high, easy and simple to handle, the defeated powder of the system that realizes full negative pressure cold wind, both the defeated powder of security of system had been ensured, clean and effective again.
For achieving the above object, the technical solution adopted in the utility model is:
Utilize the system of adjacent stove negative pressure bug dusting warehousing powder, comprise boiler first system and boiler second system;
Wherein, the first raw coal bucket in boiler first system is used for being the first feeder coal supply, the outlet of the first feeder connects the raw coal entrance of the first coal pulverizer, the discharge of the first coal pulverizer connects the entrance of the first mill separator, the outlet of the first mill separator connects the entrance of the first pulverized-coal collector, the outlet of the first pulverized-coal collector is divided into weary gas to export and discharge, the entrance of weary gas outlet connection first Powder discharging fan, discharge connects the first wood scraps separator, the outlet of the first wood scraps separator connects the entrance in the first powder storehouse, the outlet in the first powder storehouse is connected with the first machine supplying powder, first machine supplying powder outlet and No. the first bellows export and are connected with the first air and powder mixer entrance respectively, first air and powder mixer outlet is connected with the first burner inlet in boiler first burner hearth respectively with first row powder fan outlet,
The second raw coal bucket in boiler second system is used for being the second feeder coal supply, the outlet of the second feeder connects the raw coal entrance of the second coal pulverizer, the discharge of the second coal pulverizer connects the entrance of the second mill separator, the outlet of the second mill separator connects the entrance of the second pulverized-coal collector, the outlet of the second pulverized-coal collector is divided into weary gas to export and discharge, the entrance of weary gas outlet connection second Powder discharging fan, discharge connects the second wood scraps separator, the outlet of the second wood scraps separator connects the entrance in the second powder storehouse, the outlet in the second powder storehouse is connected with the second machine supplying powder, second machine supplying powder outlet and No. the second bellows export and are connected with the second air and powder mixer entrance respectively, second air and powder mixer outlet is connected with the second burner inlet in boiler second burner hearth respectively with second row powder fan outlet,
The outlet of the first machine supplying powder in boiler first system first puts the entrance that tube cell coal dust isolating valve connects the second pulverized-coal collector of boiler second, the second mill separator or the second Powder discharging fan by what pulverized coal feed pipe was arranged, and boiler second second pulverized-coal collector, the second mill separator or second row powder fans entrance are provided with first put the adjacent stove isolating valve of tube cell;
The outlet of the second machine supplying powder in boiler second system, second put the entrance that tube cell coal dust isolating valve connects the first pulverized-coal collector of boiler first, the first mill separator or the first Powder discharging fan by what pulverized coal feed pipe was arranged, and boiler first first pulverized-coal collector, the first mill separator or first row powder fans entrance are provided with second put the adjacent stove isolating valve of tube cell.
The utility model further improves and is: the first coal pulverizer and the second coal pulverizer are provided with into mill hot-wind inlet.
The utility model further improves and is: the hot-wind inlet place that enters to grind on the first coal pulverizer and the second coal pulverizer is provided with hot blast control valve.
The utility model further improves and is: arrange first at the initiating terminal of the adjacent stove pulverized coal feed pipe of boiler first and put tube cell cold air adjusting valve door; Arrange second at the initiating terminal of the adjacent stove pulverized coal feed pipe of boiler second and put tube cell cold air adjusting valve door.
The utility model further improves and is: put on powder pipeline in boiler first and be provided with the first air monitoring device; Put on powder pipeline in boiler second and be provided with the second air monitoring device.
Relative to prior art, the utility model has following beneficial effect:
The utility model utilizes the system of adjacent stove negative pressure bug dusting warehousing powder, and it without the need to increasing any power-equipment, can realize the mutual conveying of the coal dust under full condition of negative pressure between two days boiler compound storehouses.Plan in a unit wherein or after unplanned blowing out, utilize still in the negative pressure of the boiler milling system put into operation, suction nature cold wind, by Reasonable Regulation And Control powder delivering amount and defeated powder wind speed, ensures safety, efficient defeated powder.The powder system is simple, easy to operate, and relatively traditional artificial clear powder, saves a large amount of time and manpower and materials.In the defeated powder process of native system, coal dust free leaks, without deposition, and coal dust free spontaneous combustion risk of explosion, safety, clean, efficient.
Further effect of the present utility model is: in the defeated powder process of native system, do not affect the normal operation of the boiler that puts into operation, and making full use of of coal dust in blowing out powder storehouse can be realized, blowing out time can be shortened, save the combustion-supporting oil burning empty powder storehouse, both strengthen boiler safety, be conducive to again boiler environmental protection and energy saving.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model utilizes the system of adjacent stove negative pressure bug dusting warehousing powder.
Wherein: 1, boiler first, 2, the first burner, 3, the first Powder discharging fan, 4, the first coal pulverizer, 5, the first raw coal bucket, 6, the first mill separator, 7, the first pulverized-coal collector, 8, the first wood scraps separator, 9, the first powder storehouse, 10, first put tube cell coal dust isolating valve, the first machine supplying powder 11, first puts tube cell cold air adjusting valve door 12, No. the first bellows 13, first air and powder mixer 14, first feeders 15, first are put tube cell wind speed measuring device 16, the first and put the adjacent stove isolating valve 17 of tube cell; 18, boiler second, 19, the second burner, 20, the second Powder discharging fan, 21, the second coal pulverizer, 22, the second raw coal bucket, the 23, second mill separator, the 24, second pulverized-coal collector, 25, the second wood scraps separator, 26, the second powder storehouse, 27, second puts tube cell coal dust isolating valve, the 28, second machine supplying powder, 29, second tube cell cold air adjusting valve door is put, 30, No. the second bellows, the 31, second air and powder mixer, the 32, second feeder, 33, second put tube cell wind speed measuring device, 34, second puts the adjacent stove isolating valve of tube cell.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
See Fig. 1, the utility model utilizes the system of adjacent stove negative pressure bug dusting warehousing powder, specifically comprise boiler first 1 and the first burner 2 thereof, first Powder discharging fan 3, first coal pulverizer 4, first raw coal bucket 5, first mill separator 6, first pulverized-coal collector 7, first wood scraps separator 8, first powder storehouse 9, first puts tube cell coal dust isolating valve 10, first machine supplying powder 11, first puts tube cell cold air adjusting valve door 12, No. the first bellows 13, first air and powder mixer 14, first feeder 15, first puts tube cell wind speed measuring device 16 and first puts the adjacent stove isolating valve 17 of tube cell, also the second burner 19 of boiler second 18 and boiler second is comprised, second Powder discharging fan 20, second coal pulverizer 21, second raw coal bucket 22, second mill separator 23, second pulverized-coal collector 24, second wood scraps separator 25, second powder storehouse 26, second coal dust isolating valve 27, second machine supplying powder 28, second puts tube cell cold air adjusting valve door 29, No. the second bellows 30, second air and powder mixer 31, second feeder 32, second puts tube cell wind speed measuring device 33 and second puts the adjacent stove isolating valve 34 of tube cell.
Wherein, the first raw coal bucket 5 in boiler first system is for being the first feeder 15 coal supply, the outlet of the first feeder 15 connects the raw coal entrance of the first coal pulverizer 4, the discharge of the first coal pulverizer 4 connects the entrance of the first mill separator 6, the outlet of the first mill separator 6 connects the entrance of the first pulverized-coal collector 7, the outlet of the first pulverized-coal collector 7 is divided into weary gas to export and discharge, the entrance of weary gas outlet connection first Powder discharging fan 3, discharge connects the first wood scraps separator 8, the outlet of the first wood scraps separator 8 connects the entrance in the first powder storehouse 9, the outlet in the first powder storehouse 9 is connected with the first machine supplying powder 11, first machine supplying powder 11 exports and mixes with the First air from No. the first bellows 13 in the first air and powder mixer 14, the weary gas of the wind powder mixture that the first air and powder mixer 14 exports and the outlet of the first Powder discharging fan 3 is organized by the first burner 2, the burner hearth sending into boiler first 1 burns,
The second raw coal bucket 22 in boiler second system is for being the second feeder 32 coal supply, the outlet of the second feeder 32 connects the raw coal entrance of the second coal pulverizer 21, the discharge of the second coal pulverizer 21 connects the entrance of the second mill separator 23, the outlet of the second mill separator 23 connects the entrance of the second pulverized-coal collector 24, the outlet of the second pulverized-coal collector 24 is divided into weary gas to export and discharge, the entrance of weary gas outlet connection second Powder discharging fan 20, discharge connects the second wood scraps separator 25, the outlet of the second wood scraps separator 25 connects the entrance in the second powder storehouse 26, the outlet in the second powder storehouse 26 is connected with the second machine supplying powder 28, second machine supplying powder 28 exports and mixes with the First air from No. the second bellows 30 in the second air and powder mixer 31, the weary gas of the wind powder mixture that the second air and powder mixer 31 exports and the outlet of the second Powder discharging fan 20 is organized by the second burner 19, the burner hearth sending into boiler second 18 burns,
The outlet of the first machine supplying powder 11 in boiler first system, first the second pulverized-coal collector 24 that tube cell coal dust isolating valve 10 connects boiler second is put by what pulverized coal feed pipe was arranged, the entrance of the second mill separator 23 or the second Powder discharging fan 20, and by being arranged on boiler second second pulverized-coal collector 24, first of second mill separator 23 or the second Powder discharging fan 20 entrance is put the adjacent stove isolating valve 17 of tube cell and is realized boiler first and put isolation between powder system and boiler second, and arrange first at the initiating terminal of the adjacent stove pulverized coal feed pipe of boiler first and put tube cell cold air adjusting valve door 12, regulate the air quantity in adjacent stove duff pipe road and wind speed, wind speed and air quantity are measured by the first apparatus for measuring air quantity 16 be arranged on pipeline, by regulating the powder delivering amount of the adjustment of rotational speed the powder system of the first machine supplying powder 11, by rational allocation air quantity and powder amount, realize coal dust by the safe transport of boiler first first powder storehouse 9 to boiler second second powder storehouse 26,
After boiler first 1 blowing out, by the first machine supplying powder 11 and the first air and powder mixer 14 are isolated, first machine supplying powder 11 and adjacent stove are put first between tube cell to put tube cell coal dust isolating valve 10 and first and put the adjacent stove isolating valve 17 of tube cell and open, it is through that the adjacent stove realizing boiler first puts tube cell line.Then the rotating speed and first adjusting the first machine supplying powder 11 puts tube cell cold air adjusting valve door 12 aperture, tube cell powder amount and air quantity are put in adjustment, and put tube cell wind speed measuring device 16 by the adjacent stove first of boiler first and carry out Real-Time Monitoring, can realize the coal dust in the first powder storehouse 9 by second pulverized-coal collector 24 entrance of Pipeline transport to boiler second, then coal dust is by entering the second powder storehouse 26 of boiler second after the second wood scraps separator 25 of boiler second, then after being mixed with the heat primary air from boiler second No. the second bellows 30 by the second air and powder mixer 31 of boiler second, by the second burner 19 of boiler second, send into boiler second 18 to burn.
Wherein, first wind speed and wind measuring device 16 of boiler first is arranged on first and puts tube cell coal dust isolating valve 10 and first and put between the adjacent stove isolating valve 17 of tube cell, in order to monitor the wind speed and air quantity put in powder process, the aperture of tube cell cold air adjusting valve door 12 is put, to allocate the wind speed and powder amount put in tube cell in this, as the rotating speed and first according to adjustment the first machine supplying powder 11.After above-mentioned adjustment, can pass through duff pipe road by the coal dust in the first powder storehouse 9 by second pulverized-coal collector 24 entrance of Pipeline transport to boiler second, then coal dust is by entering the normal power generation coal dust of the second powder storehouse 26 as boiler second of boiler second after the second wood scraps separator 25 of boiler second.
The outlet of the second machine supplying powder 28 in boiler second system, second the first pulverized-coal collector 7 that tube cell coal dust isolating valve 27 connects boiler first is put by what pulverized coal feed pipe was arranged, the entrance of the first mill separator 6 or the first Powder discharging fan 3, and by being arranged on boiler first first pulverized-coal collector 7, second of first mill separator 6 or the first Powder discharging fan 3 entrance is put the adjacent stove isolating valve 34 of tube cell and is realized boiler first and put isolation between powder system and boiler second, and arrange second at the initiating terminal of the adjacent stove pulverized coal feed pipe of boiler second and put tube cell cold air adjusting valve door 29, adjust the air quantity in adjacent stove duff pipe road and wind speed, wind speed and air quantity are measured by the second apparatus for measuring air quantity 33 be arranged on pipeline, by regulating the powder delivering amount of the second machine supplying powder 28 adjustment of rotational speed the powder system, by suitably allocating air quantity and powder amount, realize coal dust by the safe transport of boiler second second powder storehouse 26 to boiler second first powder storehouse 9,
After boiler second 18 blowing out, by the second machine supplying powder 28 and the second air and powder mixer 31 are isolated, second machine supplying powder 28 and adjacent stove are put second between tube cell to put tube cell coal dust isolating valve 27 and second and put the adjacent stove isolating valve 34 of tube cell and open, it is through that the adjacent stove realizing boiler first puts tube cell line.Then the rotating speed and second adjusting the second machine supplying powder 28 puts tube cell cold air adjusting valve door 29 aperture, adjustment is put tube cell powder amount and is put tube cell wind speed, and put tube cell wind speed measuring device 33 by the adjacent stove second of boiler second and carry out Real-Time Monitoring, can realize the coal dust in the second powder storehouse 26 by first pulverized-coal collector 7 entrance of Pipeline transport to boiler first, then coal dust is by entering the first powder storehouse 9 of boiler first after the second wood scraps separator 8 of boiler first, then after being mixed with the heat primary air from boiler first No. the first bellows 13 by the first air and powder mixer 14 of boiler first, by the first burner 2 of boiler first, send into boiler first 1 to burn.
By said method, realize the mutual conveying of depositing powder between two boiler compound storehouses.
The utility model utilizes the course of work of the system of adjacent stove negative pressure bug dusting warehousing powder, comprises the following steps:
1) by pipe-line system the first machine supplying powder 11 of boiler first exported and be connected with the entrance of the second pulverized-coal collector 24 of boiler second, and to export and boiler second second pulverized-coal collector 24 entrance arranges first respectively and puts tube cell coal dust isolating valve 10 and first and put tube cell neighbour stove isolating valve 17 at the first machine supplying powder 11.Second machine supplying powder 28 of second boiler exports and is connected with the first pulverized-coal collector 7 entrance of boiler first by same mode, puts tube cell coal dust isolating valve 27 and second put the adjacent stove isolating valve 34 of tube cell and carry out isolation of system with second;
2) power resources of adjacent stove duff pipe are that adjacent stove is putting into operation the negative pressure that pulverized coal preparation system first Powder discharging fan 3 or the second Powder discharging fan 20 set up, and whole system realizes the defeated powder of full negative pressure;
3) the defeated powder wind regime of adjacent stove duff pipe is the natural cold wind from atmospheric environment, and its air quantity puts first of most upstream, tube cell road and put tube cell cold air adjusting valve door 12 or the second by being arranged on and put tube cell cold air adjusting valve door 29 and realize;
4) the wind speed air quantity in duff pipe road is by being arranged on the first wind speed and wind measuring device 16 on duff pipe road or the second wind speed and wind measuring device 23 carries out enforcement monitoring, instructed the adjustment of corresponding machine supplying powder rotating speed and cold wind adjustment door aperture by monitoring result, realize the safe transport of coal dust.
The utility model the ball type pulverizer system utilizes the interface putting powder pipeline and adjacent stove of the system of adjacent stove negative pressure bug dusting warehousing powder both can be placed on the first pulverized-coal collector 7 and the second pulverized-coal collector 24 entrance, also can be placed on mill separator 6 and 23 or mill exhauster 3 and 20 entrance.
Coal dust in blowing out powder storehouse can be realized to transporting in the boiler compound storehouse run by native system, and then becomes the qualified coal for power generation powder of the boiler that puts into operation; Adjacent stove puts putting into operation of powder system, do not affect putting into operation of normal boiler operation relevant device.
The outlet of the machine supplying powder of two boilers adopts adjacent stove powder feeding pipeline to be connected by the utility model respectively with the pulverized-coal collector entrance of the other side, and isolating valve is set respectively realizes isolation of system in machine supplying powder outlet and pulverized-coal collector entrance, arrange air cooling wind adjustment air door at the initiating terminal of adjacent stove powder feeding pipeline, sector-style amount wind speed of going forward side by side using the cold air introducing occurring in nature as powder feeding medium regulates, this makes it possible to the coal dust of pulverized coal preparation system in the negative-pressure ward nature cold wind conveying powder storehouse that pulverized-coal collector entrance is set up realizing utilizing adjacent stove normally to run, send into the pulverized-coal collector of adjacent stove, last coal dust is by entering the Pulverized Coal Bin of adjacent stove at the pulverized-coal collector of adjacent stove, for adjacent boiler combustion system normally.
The utility model can realize effective conveying of coal dust between two boiler compound storehouses, and wherein after a compressor emergency shutdown, safe and effective removing powder warehousing powder, ensure powder storehouse safely, prevent spontaneous combustion of pulverized coal in powder storehouse or blast.Native system only increases pipeline and respective valves, do not need to increase any energy consumption equipment, there is the features such as simple and reliable, the easy and simple to handle and maintenance workload of system is low, powder can be deposited in safe and efficient emptying blowing out powder storehouse, effective shortening furnace outage time, saves " burning storehouse " and helps fuel oil, can save again and the powder of depositing in powder storehouse is used for generating, that avoids cleaning deposits powder contaminated environment, reaches the effect of energy-conserving and environment-protective.
The utility model not affecting under the condition that boiler normally runs, can realize the safe transport of the coal dust in stoppage in transit boiler compound storehouse to boiler compound storehouse of putting into operation, and using the qualified coal for power generation powder of these coal dusts as the boiler that puts into operation.

Claims (5)

1. utilize the system of adjacent stove negative pressure bug dusting warehousing powder, it is characterized in that: comprise boiler first system and boiler second system, wherein,
The first raw coal bucket (5) in boiler first system is for being the first feeder (15) coal supply, the outlet of the first feeder (15) connects the raw coal entrance of the first coal pulverizer (4), the discharge of the first coal pulverizer (4) connects the entrance of the first mill separator (6), the outlet of the first mill separator (6) connects the entrance of the first pulverized-coal collector (7), the outlet of the first pulverized-coal collector (7) is divided into weary gas to export and discharge, the entrance of weary gas outlet connection first Powder discharging fan (3), discharge connects the first wood scraps separator (8), the outlet of the first wood scraps separator (8) connects the entrance in the first powder storehouse (9), the outlet in the first powder storehouse (9) is connected with the first machine supplying powder (11), first machine supplying powder (11) outlet and No. the first bellows (13) export and are connected with the first air and powder mixer (14) entrance respectively, first air and powder mixer (14) outlet is connected with the first burner (2) entrance in boiler first (1) burner hearth respectively with the first Powder discharging fan (3) outlet,
The second raw coal bucket (22) in boiler second system is for being the second feeder (32) coal supply, the outlet of the second feeder (32) connects the raw coal entrance of the second coal pulverizer (21), the discharge of the second coal pulverizer (21) connects the entrance of the second mill separator (23), the outlet of the second mill separator (23) connects the entrance of the second pulverized-coal collector (24), the outlet of the second pulverized-coal collector (24) is divided into weary gas to export and discharge, the entrance of weary gas outlet connection second Powder discharging fan (20), discharge connects the second wood scraps separator (25), the outlet of the second wood scraps separator (25) connects the entrance in the second powder storehouse (26), the outlet in the second powder storehouse (26) is connected with the second machine supplying powder (28), second machine supplying powder (28) outlet and No. the second bellows (30) export and are connected with the second air and powder mixer (31) entrance respectively, second air and powder mixer (31) outlet is connected with the second burner (19) entrance in boiler second (18) burner hearth respectively with the second Powder discharging fan (20) outlet,
The outlet of the first machine supplying powder (11) in boiler first system first puts the entrance that tube cell coal dust isolating valve (10) connects second pulverized-coal collector (24) of boiler second, the second mill separator (23) or the second Powder discharging fan (20) by what pulverized coal feed pipe was arranged, and boiler second second pulverized-coal collector (24), the second mill separator (23) or the second Powder discharging fan (20) entrance are provided with first put adjacent stove isolating valve (17) of tube cell;
The outlet of the second machine supplying powder (28) in boiler second system, second put the entrance that tube cell coal dust isolating valve (27) connects first pulverized-coal collector (7) of boiler first, the first mill separator (6) or the first Powder discharging fan (3) by what pulverized coal feed pipe was arranged, and boiler first first pulverized-coal collector (7), the first mill separator (6) or the first Powder discharging fan (3) entrance are provided with second put adjacent stove isolating valve (34) of tube cell.
2. the system of utilization according to claim 1 adjacent stove negative pressure bug dusting warehousing powder, is characterized in that: the first coal pulverizer (4) and the second coal pulverizer (21) are provided with into mill hot-wind inlet.
3. the system of utilization according to claim 2 adjacent stove negative pressure bug dusting warehousing powder, is characterized in that: the hot-wind inlet place that enters to grind on the first coal pulverizer (4) and the second coal pulverizer (21) is provided with hot blast control valve.
4. the system of utilization according to claim 1 adjacent stove negative pressure bug dusting warehousing powder, is characterized in that: arrange first at the initiating terminal of the adjacent stove pulverized coal feed pipe of boiler first and put tube cell cold air adjusting valve door (12); Arrange second at the initiating terminal of the adjacent stove pulverized coal feed pipe of boiler second and put tube cell cold air adjusting valve door (29).
5. the system of utilization according to claim 1 adjacent stove negative pressure bug dusting warehousing powder, is characterized in that: put on powder pipeline in boiler first and be provided with the first air monitoring device (16); Put on powder pipeline in boiler second and be provided with the second air monitoring device (33).
CN201520009511.XU 2015-01-07 2015-01-07 Utilize the system of adjacent stove negative pressure bug dusting warehousing powder Expired - Fee Related CN204404215U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104633692A (en) * 2015-01-07 2015-05-20 西安西热锅炉环保工程有限公司 System and method for clearing powder deposits in pulverized coal bunkers using adjacent boiler negative pressure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104633692A (en) * 2015-01-07 2015-05-20 西安西热锅炉环保工程有限公司 System and method for clearing powder deposits in pulverized coal bunkers using adjacent boiler negative pressure

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