CN204026705U - A kind of dry slag cooling air quantity intelligence control system - Google Patents
A kind of dry slag cooling air quantity intelligence control system Download PDFInfo
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- CN204026705U CN204026705U CN201420142767.3U CN201420142767U CN204026705U CN 204026705 U CN204026705 U CN 204026705U CN 201420142767 U CN201420142767 U CN 201420142767U CN 204026705 U CN204026705 U CN 204026705U
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- 239000002893 slag Substances 0.000 title claims abstract description 150
- 238000001816 cooling Methods 0.000 title claims abstract description 79
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 92
- 239000010959 steel Substances 0.000 claims abstract description 92
- 230000001105 regulatory effect Effects 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims description 14
- 239000000428 dust Substances 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000006837 decompression Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 5
- 239000003818 cinder Substances 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 3
- 239000002956 ash Substances 0.000 description 31
- 230000006698 induction Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 239000003245 coal Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 208000011580 syndromic disease Diseases 0.000 description 2
- 241000124033 Salix Species 0.000 description 1
- 239000010884 boiler slag Substances 0.000 description 1
- 239000010882 bottom ash Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a kind of dry slag cooling air quantity intelligence control system, comprise and to design on described steel belt machine body and near the blower unit of described slag notch, be located at the air inlet air quantity regulating device of described air inlet, be located at the air velocity checkout gear of described steel belt machine body interior, be located at the temperature-detecting device of described steel belt machine body interior, the air velocity of described steel belt machine body interior and dry slag temperature are detected, acquisition air quantity and temperature information send to controller, described controller is according to described air velocity, described temperature information and furnace bottom pressure control the power output of described blower unit and air inlet air quantity regulating device, thus the air quantity making to enter burner hearth with reach preset value for the temperature cooling the slag in described slag conveying device.
Description
Technical field
The utility model belongs to coal-burning boiler residue extraction mechanism field, particularly one dry slag cooling air quantity intelligence control system.
Background technology
At present, Dry Slag Removal System has been widely used in thermal power plant in the process of Boiler Furnace bottom ash slag.Along with national energy-saving reduces discharging carrying out and enforcement of engineering, Dry Slag Removal System obtains propagation and employment.In recent years, dried slag removing mode reached energy-saving and cost-reducing object because it simplifies furnace bottom slag removing system, realized cleaner production, improved comprehensive utilization of resources, progressively instead of the water sluice mode that coal-burning boiler is traditional.The environment division of dry dreg removing system mainly comprises hearth deslagging device, steel band slag conveyer, slag crusher and bucket elevator, when slag extractor runs continuously, high temperature furnace slag drops on the conveyer belt (or carrier bar) of slag conveyer continuously, high temperature furnace slag is with conveyer belt (or carrier bar) low-speed motion, under suction function, it is inner that controlled a small amount of ambient, cool air enters air-cooled dry-type slag discharging machine, with the slag contact heat-exchanging (pressurized boiler adopts blower fan cooling device) on dry-type slag extractor conveying steel belt (or carrier bar), high temperature furnace slag is also completed burning gradually by Air flow gradually.
Therefore, existing dry slag conveying system cooling-air is from being positioned at the main air door of head and being positioned at the crosswind door of steel belt machine both sides.In current actual motion, mainly utilize the aperture adjustment steel belt machine intake of electronic main air door, and crosswind door is determined aperture when debugging and is fixed.
Chinese patent literature CN101008492A discloses a kind of dry slag-draining device of coal boiler, this device has the seal case storing up slag bucket with boiler and be tightly connected, be provided with in described seal case and store up the acceptance of slag bucket slag notch and the high-temperature resistant belt conveyer of conveying slag through boiler, the downstream of storing up slag bucket link position in described seal case and described boiler in the transmission direction of described high-temperature resistant belt conveyer is provided with air inlet, described seal case limits the air door that the cooling-air passed into enters described boiler storage slag bucket, described air door stores up between slag bucket link position and described air inlet at described seal case and described boiler, the exhaust outlet of the seal case that the hot-air after described seal case being also provided with by heat exchange is discharged, described exhaust outlet connects with air-introduced machine.This device effectively can cool boiler slag and can effectively control to enter the cooling air quantity of burner hearth, but the cooling air quantity of this device can not with boiler load change adjustment in real time, simultaneously, because power plant's coal often changes, the quantity of slag is caused to change greatly, and the corresponding cooling air quantity entering burner hearth is constant, then exhaust gas temperature can be caused to raise.This device detects the pressure reduction of air door both sides by the pressure sensor of air door both sides simultaneously, thus control the cooling air volume entering boiler bottom, and depend merely on pressure and regulate air quantity can not make flexible adjustment for factors such as the coal-fired kind of difference or different loads, thus accurate control can not be realized.
Utility model content
For this reason, technical problem to be solved in the utility model is, provides a kind of dry slag cooling air quantity intelligence control system, comprising:
Hearth deslagging equipment, for receiving the slag gone out from slag well array, comprises steel belt machine body, and is located at the slag conveying device of described steel belt machine body interior, and described steel belt machine body is provided with at least one air inlet and has into cinder notch and slag notch;
Blower unit, to be located on described steel belt machine body and near described slag notch, produces negative pressure relative to air for making described steel belt machine body interior;
Air inlet air quantity regulating device, is located at described air inlet;
Air velocity checkout gear, is located at described steel belt machine body interior, detects the air velocity of described steel belt machine body interior, obtains air velocity information;
Temperature-detecting device, is located at described steel belt machine body interior, detects the dry slag temperature of described steel belt machine body interior, obtains temperature information;
Pressure-detecting device, is located at the slag-drip opening place of described slag well, for detecting the pressure at slag-drip opening place, obtains furnace bottom pressure information;
Controller, according to described air velocity information, described temperature information and described furnace bottom pressure information, the power output of described blower unit and air inlet air quantity regulating device are controlled, thus the air quantity making to enter burner hearth with reach preset value for the temperature cooling the slag in described slag conveying device.
Described steel belt machine body design is first-level transport device along lime-ash transmission direction and two-stage conveying device two parts, described first-level transport device head is communicated to the afterbody of two-stage conveying device, the head of described two-stage conveying device is located at by described slag notch, described first-level transport device and described two-stage conveying device are provided with described air inlet air quantity regulating device, described air velocity checkout gear and described temperature-detecting device.
The described steel belt machine body afterbody being close to the setting of described slag well is provided with the first negative pressure dust removing device or is communicated to the second communicating pipe of boiler back end ductwork, for forming the district of local decompression relative to air at described steel belt machine body afterbody, thus control the air quantity entering burner hearth, and then furnace bottom area and dry slag conveyor zones is made to form effective isolation.
Described slag storehouse is provided with blast pipe, and described blast pipe is communicated to described second negative pressure dust removing device or described boiler back end ductwork, for by the dry slag cooling-air sucking-off in steel belt machine.
The described slag notch of described steel belt machine body is also provided with the material blanking tube to downward-extension, and described material blanking tube is communicated to described slag storehouse, and described material blanking tube inwall is provided with some baffling striker plates, for being broken up by lime-ash, and reduces lime-ash falling speed.
Described air inlet is located at described steel belt machine body side, and cooling air enters described steel belt machine body by described air inlet and flows to described blower unit.
Described air inlet is provided with blast pipe, and by a total blast pipe air intake after the blast pipe of several described air inlets be arranged in order crosses, described air inlet air quantity regulating device is be arranged at the flow control valve on described total blast pipe.
Lime-ash thickness detection apparatus is provided with in described steel belt machine body, for detecting the thickness of lime-ash and lime-ash thickness signal being sent to described controller, described controller regulates slag conveying device motor speed according to described lime-ash thickness signal, makes lime-ash thickness remain on preset value.
Described total blast pipe is also provided with intake checkout gear, for intake signal is delivered to described controller.
Described air inlet is also provided with temperature instrument, velocity measuring instrument, for detecting temperature and the rate signal of cooling air.
Described steel belt machine inner body wall is provided with streams baffle plate, the time stopped in steel belt machine for increasing cooling air and the disturbance of air-flow.
Technique scheme of the present utility model has the following advantages compared to existing technology:
(1) dry slag cooling air quantity intelligence control system of the present utility model, comprise: to design on described steel belt machine body and near the blower unit of described slag notch, air inlet air quantity regulating device, air velocity checkout gear, temperature-detecting device and controller, described blower unit enters described steel belt machine body for making the generation of described steel belt machine body interior be convenient to cooling air relative to the negative pressure of air by described air inlet, dry slag cooling air quantity intelligence control system of the present utility model is by arranging air velocity checkout gear simultaneously, temperature-detecting device can temperature in Real-Time Monitoring slag drying machine and flow rate information, receive temperature information by described controller simultaneously, furnace bottom pressure information, air velocity information also sends power output and the air inlet air quantity regulating device that instruction regulates described blower unit, thus the intrinsic negative pressure of steel belt machine and intake are adjusted accordingly, make dry slag cooling air quantity intelligence control system of the present utility model can according to furnace bottom pressure information, temperature information in slag drying machine is to intake velocity, flow adjusts accordingly, be conducive to for different boiler load, different coal-fired kind is made corresponding adjustment and is arranged, thus can more effective lime-ash in slag drying machine be cooled.
(2) dry slag cooling air quantity intelligence control system of the present utility model, described steel belt machine body design is first-level transport device along lime-ash transmission direction and two-stage conveying device two parts, described first-level transport device head is communicated to the afterbody of two-stage conveying device, the head of described two-stage conveying device is located at by described slag notch, described first-level transport device and two-stage conveying device are provided with described air inlet air quantity regulating device, described air velocity checkout gear and described temperature-detecting device, be conducive to the air intake situation according to the lime-ash cooling situation adjustment slag conveyer side air inlet mouth in slag drying machine, the intake of side air inlet mouth can be gradually changed to head cooling air quantity by slag conveyer afterbody, thus the cooling air avoiding the side air inlet mouth apart from the nearer steel belt machine afterbody of burner hearth to enter does not carry out abundant cooling to slag just enters burner hearth, realize accurately controlling to the intrinsic air intake of described steel belt machine, improve cooling effectiveness.
(3) dry slag cooling air quantity intelligence control system of the present utility model, the described steel belt machine body afterbody being close to the setting of described slag well can also arrange negative-pressure air fan or be communicated to the second communicating pipe of boiler back end ductwork, for forming the district of local decompression relative to air at described steel belt machine body afterbody, district of described local decompression is for controlling the air quantity entering burner hearth, under the instruction of described controller, regulate the negative pressure proportioning of the described blower unit of itself and described slag storehouse head simultaneously, the cooling air that side air inlet mouth enters or not burner hearth along the direction flowing that described lime-ash transmits, reduce the impact on hearth combustion.Enter the intake of burner hearth by regulating the flow of the described negative-pressure air fan of described steel belt machine body afterbody or regulating the aperture of described second communicating pipe to regulate, the adjustment to intake when realizing boiler different load, maintains the original fired state of burner hearth simultaneously.
(4) dry slag cooling air quantity intelligence control system of the present utility model, described slag storehouse is provided with blast pipe, described blast pipe is communicated to described boiler back end ductwork, and the negative pressure of described boiler back end ductwork is greater than the negative pressure in described slag storehouse, for by the unnecessary dry slag cooling air sucking-off in steel belt machine.Top, described slag storehouse is also provided with material blanking tube downwards, described material blanking tube inwall is provided with some baffling striker plates, and described striker plate is used for lime-ash to break up, and enhances heat transfer effect, the setting of described striker plate simultaneously also can reduce lime-ash falling speed, thus adds cool time.
(5) dry slag cooling air quantity intelligence control system of the present utility model, described air inlet, be located at described steel belt machine body side, described cooling air enters described steel belt machine body by described air inlet and flows to described blower unit, described total blast pipe is also provided with intake checkout gear, for intake signal is delivered to described controller, described controller can according to the different intakes of the described side air inlet mouth of the cooling situation adjustment diverse location of lime-ash, flexibility and reliability, reduces energy consumption while ensureing cooling effect as far as possible.
(6) dry slag cooling air quantity intelligence control system of the present utility model, lime-ash thickness detection apparatus is provided with in described steel belt machine body, for detecting lime-ash thickness and described lime-ash thickness signal being sent to described controller, make described controller can according to the motor speed of lime-ash thickness signal working the slag conveying device, thus make thickness of slag layer remain in allowed band, guarantee the cooling effect of dry slag.
(7) dry slag cooling air quantity intelligence control system of the present utility model, described steel belt machine inner body wall is provided with streams baffle plate, and the time stopped in steel belt machine for increasing cooling air and the disturbance of air-flow, can strengthen heat transfer effect.
Accompanying drawing explanation
In order to make content of the present utility model be more likely to be clearly understood, below according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein
Fig. 1 is first-level transport system architecture 1 schematic diagram;
Fig. 2 is first-level transport system architecture 2 schematic diagram
Fig. 3 is two-stage induction system structure 1 schematic diagram;
Fig. 4 is two-stage induction system structure 2 schematic diagram;
In figure, Reference numeral is expressed as: 1-steel belt machine body, 2-slag conveying device, 3-blower unit, 4-air inlet air quantity regulating device, 5-blast pipe, the total blast pipe of 6-, 7-flow detector, 8-air velocity checkout gear, 9-temperature-detecting device, 10-boiler back end ductwork, 11-air inlet, 12-first communicating pipe, 13-third connecting pipe, 14-blast pipe, 15-sack cleaner, 16-material blanking tube, 17-striker plate, 18-pressure-detecting device, 21-first-level transport device, 22-two-stage conveying device.
Detailed description of the invention
In conjunction with specific embodiments, dry slag cooling air quantity intelligence control system described in the utility model is described in detail.
As shown in Figure 1, one of the present utility model dry slag cooling air quantity intelligence control system, comprising:
Hearth deslagging equipment, for receiving the slag gone out from slag well array, comprises steel belt machine body 1, and is located at the slag conveying device 2 of described steel belt machine body 1 inside, and described steel belt machine body 1 is provided with at least one air inlet 11 and has into cinder notch and slag notch, dry slag cooling air quantity intelligence control system of the present utility model also comprises and to design on described steel belt machine body 1 and near the described blower unit 3 of described slag notch, be located at the described air inlet air quantity regulating device 4 at described air inlet 11 place, be located at the described air velocity checkout gear 8 of described steel belt machine body interior, be located at the described temperature-detecting device 9 of described steel belt machine body interior, be located at the pressure-detecting device 18 at the slag-drip opening place of described slag well and described controller, described blower unit 3 is for making the generation of described steel belt machine body interior relative to the negative pressure of air, the dry slag temperature of described temperature-detecting device 9 to described steel belt machine body 1 inside detects, obtain temperature information, the air velocity of described air velocity checkout gear 8 to described steel belt machine body 1 inside detects, obtain air velocity information, described pressure-detecting device 18, for detecting the pressure at slag-drip opening place, obtains furnace bottom pressure information, described controller controls the power output of described blower unit and air inlet air quantity regulating device according to described air velocity information, described temperature information and described furnace bottom pressure information, thus the air quantity making to enter burner hearth with reach preset value for the temperature cooling the slag in described slag conveying device.Meanwhile, need it is noted that, in the utility model, described preset value both can be the concrete numerical value of a setting, also can be that the number range of setting is interval.
embodiment one
The dry slag cooling air intelligence control system of the present embodiment to first-level transport is introduced:
The principle of dry slag cooling air quantity control system of the present utility model is: calculate the cooling air quantity entering burner hearth according to burner hearth intake total under boiler different load, and this air quantity is detected by the flowmeter being positioned at burner hearth aditus laryngis; Under this upper limit air quantity condition, detect steel belt machine head wind-warm syndrome by wind-warm syndrome meter, the aperture of crosswind mouth valve, makes head environment temperature be in zone of reasonableness, guarantees the safe and stable operation of equipment.Meanwhile, according to air quantity determination slag storehouse sack cleaner negative pressure now or the aperture with back-end ductwork communicating pipe, unnecessary cooling-air is discharged.
As shown in Figure 1, in the present embodiment, diverse location place along the direction that lime-ash transmits in described steel belt machine body 1 is provided with some described air velocity checkout gears 8 and temperature-detecting device 9, the cooling air flow velocity that described air velocity checkout gear 8 and described temperature-detecting device 9 detect and dry slag temperature signal are sent to described controller, described steel belt machine body 1 does not arrange head air door, described air inlet 11 is only arranged on the side of described steel belt machine body 1, described cooling air enters described steel belt machine body 1 to described second negative pressure dust removing device flowing by described air inlet 11, described second negative pressure dust removing device comprises described sack cleaner 15 and described blower unit 3, in the present embodiment, described blower unit 3 is negative-pressure air fan.
Simultaneously, in the present embodiment, side cooling air adopts the mode of segmentation air intake, described air inlet 11 is provided with blast pipe 5, by total blast pipe 6 air intake after the described blast pipe 5 of several described air inlets 11 be arranged in order crosses, in the present embodiment, by described total blast pipe 6 air intake after three that are arranged in order described blast pipes 5 cross, and described total blast pipe 6 is provided with described air inlet air quantity regulating device 4, in the present embodiment, described air inlet air quantity regulating device 4 is for being arranged at the flow control valve on described total blast pipe 6, described total blast pipe 6 is also provided with flow detector 7, for intake signal is delivered to described controller.Adopt and accurately control side cooling air quantity by described controller in this way, by conveyer afterbody to head, cooling air quantity gradually changes, and design parameter setting is determined after analog computation.Described air velocity checkout gear 8, described flow detector 7, described temperature-detecting device 9 are set along steel belt machine along journey, described pressure-detecting device 18, these instrument are set and can meet the basic condition realizing the closed-loop control of intelligence control wind.
Described controller is according to boiler load and burning coal, determine the total blast volume entering burner hearth, then by the intake information of the described cooling air flow velocity in the described steel belt machine body 1 that receives and dry slag temperature signal and described air inlet 11, described negative-pressure air fan is regulated to distribute negative pressure, realize the closed-loop control of cooling air quantity with boiler load real-time change, while guaranteeing dry slag chilling temperature, all the other cooling airs are produced by sack cleaner negative-pressure air fan, enter air, simultaneously, described controller is by numbered analog simulation and calculating, the velocity field of optimization system and thermo parameters method, determine the negative pressure that boiler furnace and described negative-pressure air fan produce and suction air volume proportioning, the cooling air that the described air inlet 11 of lime-ash translator unit is entered can not be a large amount of enter in burner hearth, thus ensure that efficiency of fire coal.
Further, in the present embodiment, the inwall of described steel belt machine body is also provided with and streams baffle plate, the disturbance of the time that increase cooling air stops in steel belt machine and air-flow, to reach the object strengthening heat transfer effect, the cooling air quantity needed for minimizing, reduces energy consumption.
Meanwhile, dry slag cooling air quantity intelligence control system of the present utility model also can regulate the air quantity entering burner hearth in the following manner:
The described steel belt machine body afterbody being close to the setting of described slag well is provided with the first negative pressure dust removing device or is communicated to the second communicating pipe of boiler back end ductwork, for forming the district of local decompression relative to air at described steel belt machine body afterbody, thus control the air quantity entering burner hearth, and then making furnace bottom area and dry slag conveyor zones form effective isolation, described first negative pressure dust removing device is also be made up of described sack cleaner 15 and described blower unit 3.
In the present embodiment, establish the described material blanking tube 16 to downward-extension of a section high about 6 meters at described slag notch, utilize dry slag to cool dry slag at described material blanking tube 16 dropping process, described material blanking tube 16 inwall is provided with described folding willow striker plate 17, can falling speed be reduced, increase cool time; Described striker plate 17 by material scattering, can also enhance heat transfer effect simultaneously.Lime-ash thickness detection apparatus is provided with in described steel belt machine body 1, for detecting the thickness of lime-ash and lime-ash thickness signal being sent to described controller, described controller regulates motor speed according to described lime-ash thickness signal, makes lime-ash thickness remain on preset value.
embodiment two
As shown in Figure 2, described slag storehouse can also arrange blast pipe 14, described blast pipe 14 is communicated to described boiler back end ductwork 10 and described blast pipe 14 is provided with the valve that can regulate its aperture, described slag storehouse is communicated to described boiler back end ductwork 10 by described blast pipe 14, the suction function of boiler back end ductwork 10 can be utilized, be convenient to the dry slag cooling air sucking-off in steel belt machine.
embodiment three
Secondary (comprising multistage) dry slag induction system is slightly different from one-level dry slag induction system.The afterbody of secondary steel belt machine is communicated with by a communicating pipe with the head of one-level steel belt machine, and one-level steel belt machine and follow-up steel belt machine can be isolated after closing communicating pipe, in the present embodiment, described communicating pipe was the first communicating pipe 12.
As shown in Figures 3 and 4, the described steel belt machine body 1 of described secondary dry slag induction system is designed to first-level transport device 21 along lime-ash transmission direction and two-stage conveying device 22 two parts, described first-level transport device 21 head is communicated to the afterbody of described two-stage conveying device 22 by the first communicating pipe 12, the head of described two-stage conveying device 22 is located at by described slag notch, the described air inlet of described first-level transport device 21 is arranged at described lime-ash running part, cooling air enters described side air inlet mouth and flows to described burner hearth direction against lime-ash transmission direction, the cinder notch place that enters of steel belt machine does not arrange air inlet, thus make with lime-ash heat exchange after gas enter burner hearth, burner hearth is entered after refrigerating gas preheating, be conducive to improving efficiency of fire coal, and in the present embodiment, the head of described first-level transport device 21 and the afterbody of described two-stage conveying device 22 are communicated with the third connecting pipe 13 for balancing pressure reduction.
Described first-level transport device 21 is provided with described air inlet air quantity regulating device 4 with two-stage conveying device 22, described air velocity checkout gear 8, described temperature-detecting device 9 and described flow detector 7, simultaneously, described first-level transport device 21 is provided with described lime-ash thickness detection apparatus too with two-stage conveying device 22, described head slag storehouse is also provided with described material blanking tube 16 and described baffle plate 17, does not add repeat at this.
Described first-level transport device 21, by aforesaid way, controls the air quantity entering burner hearth while being cooled by dry slag.Described two-stage conveying device 22(final stage) head slag storehouse is provided with described second negative pressure dust removing device, and described second negative pressure dust removing device comprises described sack cleaner 15 and described negative-pressure air fan, and the additional air in slag storehouse is mainly discharged by its effect.
Described secondary dry slag induction system is similar to the cooling air quantity control mode of described one-level dry slag induction system dry slag cooling air quantity intelligence control system, does not add repeat at this.
embodiment four
As shown in Figure 4, the described slag storehouse of described secondary (comprising multistage) dry slag induction system can also arrange blast pipe 14, described blast pipe 14 is communicated to described boiler back end ductwork 10 and described blast pipe 14 is provided with the valve that can regulate its aperture, described slag storehouse is communicated to described boiler back end ductwork 10 by described blast pipe 14, the suction function of boiler back end ductwork 10 can be utilized, be convenient to the dry slag cooling air sucking-off in steel belt machine, all the other vibrational power flow are identical in foregoing, do not add repeat at this.
Dry slag cooling air quantity intelligence control system of the present utility model sets up boiler different load and the corresponding relation entering burner hearth cooling air quantity, realize the overall process Based Intelligent Control of cooling air in different boiler load situation, realize the on-line monitoring function of slag temperature, while control burner hearth intake, all the other air quantity are discharged by sack cleaner negative-pressure air fan or back-end ductwork, reasonable distribution combustion chamber draft and sack cleaner suction air volume (or back-end ductwork) proportioning, guarantee equipment safety operation.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain of the invention.
Claims (11)
1. a dry slag cooling air quantity intelligence control system, comprising:
Hearth deslagging equipment, for receiving the slag gone out from slag well array, comprises steel belt machine body, and is located at the slag conveying device of described steel belt machine body interior, and described steel belt machine body is provided with at least one air inlet and has into cinder notch and slag notch;
Characterized by further comprising:
Blower unit, to be located on described steel belt machine body and near described slag notch, produces negative pressure relative to air for making described steel belt machine body interior;
Air inlet air quantity regulating device, is located at described air inlet;
Air velocity checkout gear, is located at described steel belt machine body interior, detects the air velocity of described steel belt machine body interior, obtains air velocity information;
Temperature-detecting device, is located at described steel belt machine body interior, detects the dry slag temperature of described steel belt machine body interior, obtains temperature information;
Pressure-detecting device, is located at the slag-drip opening place of described slag well, for detecting the pressure at slag-drip opening place, obtains furnace bottom pressure information;
Controller, according to described air velocity information, described temperature information and described furnace bottom pressure information, the power output of described blower unit and air inlet air quantity regulating device are controlled, thus the air quantity making to enter burner hearth with reach preset value for the temperature cooling the slag in described slag conveying device.
2. dry slag cooling air quantity intelligence control system according to claim 1, it is characterized in that: described steel belt machine body design is first-level transport device along lime-ash transmission direction and two-stage conveying device two parts, described first-level transport device head is communicated to the afterbody of two-stage conveying device, the head of described two-stage conveying device is located at by described slag notch, and described first-level transport device and described two-stage conveying device are provided with described air inlet air quantity regulating device, described air velocity checkout gear and described temperature-detecting device.
3. dry slag cooling air quantity intelligence control system according to claim 1 and 2, it is characterized in that: the described steel belt machine body afterbody being close to the setting of described slag well is provided with the first negative pressure dust removing device or is communicated to the second communicating pipe of boiler back end ductwork, for forming the district of local decompression relative to air at described steel belt machine body afterbody, thus control the air quantity entering burner hearth, and then furnace bottom area and dry slag conveyor zones is made to form effective isolation.
4. dry slag cooling air quantity intelligence control system according to claim 3, it is characterized in that: slag storehouse is provided with blast pipe, described blast pipe is communicated to the second negative pressure dust removing device or described boiler back end ductwork, for by the dry slag cooling-air sucking-off in steel belt machine.
5. dry slag cooling air quantity intelligence control system according to claim 4, it is characterized in that: the described slag notch of described steel belt machine body is also provided with the material blanking tube to downward-extension, described material blanking tube is communicated to described slag storehouse, described material blanking tube inwall is provided with some baffling striker plates, for being broken up by lime-ash, and reduce lime-ash falling speed.
6. dry slag cooling air quantity intelligence control system according to claim 5, is characterized in that: described air inlet is located at described steel belt machine body side, cooling air enters described steel belt machine body by described air inlet and flows to described blower unit.
7. dry slag cooling air quantity intelligence control system according to claim 6, it is characterized in that: described air inlet is provided with blast pipe, by a total blast pipe air intake after the blast pipe of several described air inlets be arranged in order crosses, described air inlet air quantity regulating device is be arranged at the flow control valve on described total blast pipe.
8. dry slag cooling air quantity intelligence control system according to claim 7, it is characterized in that: in described steel belt machine body, be provided with lime-ash thickness detection apparatus, for detecting the thickness of lime-ash and lime-ash thickness signal being sent to described controller, described controller regulates slag conveying device motor speed according to described lime-ash thickness signal, makes lime-ash thickness remain on preset value.
9. dry slag cooling air quantity intelligence control system according to claim 8, is characterized in that: described total blast pipe is also provided with intake checkout gear, for intake signal is delivered to described controller.
10. dry slag cooling air quantity intelligence control system according to claim 9, is characterized in that: described air inlet is also provided with temperature instrument, velocity measuring instrument, for detecting temperature and the rate signal of cooling air.
11. dry slag cooling air quantity intelligence control systems according to claim 5, is characterized in that: described steel belt machine inner body wall is provided with streams baffle plate, the time stopped in steel belt machine for increasing cooling air and the disturbance of air-flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420142767.3U CN204026705U (en) | 2014-03-05 | 2014-03-27 | A kind of dry slag cooling air quantity intelligence control system |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420097430 | 2014-03-05 | ||
| CN201420097430.5 | 2014-03-05 | ||
| CN201420142767.3U CN204026705U (en) | 2014-03-05 | 2014-03-27 | A kind of dry slag cooling air quantity intelligence control system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939924A (en) * | 2014-03-05 | 2014-07-23 | 北京国电富通科技发展有限责任公司 | Intelligent control system for dry slag cooling air amount |
| CN105698190A (en) * | 2016-03-21 | 2016-06-22 | 安徽未名生物环保有限公司 | Classified sundry discharging control system for rubbish heat treatment furnace |
| CN109373339A (en) * | 2018-10-31 | 2019-02-22 | 西安热工研究院有限公司 | A kind of dry deslagging protection system and its working method |
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| JP6866822B2 (en) * | 2017-10-18 | 2021-04-28 | 東芝三菱電機産業システム株式会社 | Air volume control device for sintered cooler equipment |
| CN107741021B (en) * | 2017-10-31 | 2019-07-23 | 史震伟 | A kind of air-cooled slag drying machine clinker sensible heat reclaiming system |
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| CN114704845A (en) * | 2022-03-25 | 2022-07-05 | 西安热工研究院有限公司 | Dry slag discharging automatic control system and method with high-efficiency heat exchange and low air leakage rate |
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| JP2002161284A (en) * | 2000-11-27 | 2002-06-04 | Mitsubishi Heavy Ind Ltd | Coal gasifier |
| CN102032583A (en) * | 2009-09-29 | 2011-04-27 | 克莱德贝尔格曼干燥控制有限公司 | Method and device for carrying out conveying, cooling and energy recovering on heat material |
| CN201779673U (en) * | 2010-08-20 | 2011-03-30 | 镇江华东电力设备制造厂 | Auxiliary cooling system for dry-type slag removal of boiler |
| CN102155743B (en) * | 2011-04-15 | 2012-11-28 | 山东电力研究院 | Ventilation control system and method applicable to dry type slag extractor |
| CN202835399U (en) * | 2012-08-15 | 2013-03-27 | 安徽三星化工有限责任公司 | Boiler slagging dust exhaust device |
| CN103939924B (en) * | 2014-03-05 | 2018-05-11 | 北京国电富通科技发展有限责任公司 | A kind of dry slag cooling air quantity intelligence control system |
-
2014
- 2014-03-27 CN CN201410118525.5A patent/CN103939924B/en active Active
- 2014-03-27 CN CN201420142767.3U patent/CN204026705U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939924A (en) * | 2014-03-05 | 2014-07-23 | 北京国电富通科技发展有限责任公司 | Intelligent control system for dry slag cooling air amount |
| CN103939924B (en) * | 2014-03-05 | 2018-05-11 | 北京国电富通科技发展有限责任公司 | A kind of dry slag cooling air quantity intelligence control system |
| CN105698190A (en) * | 2016-03-21 | 2016-06-22 | 安徽未名生物环保有限公司 | Classified sundry discharging control system for rubbish heat treatment furnace |
| CN105698190B (en) * | 2016-03-21 | 2018-07-20 | 安徽未名生物环保有限公司 | A kind of rubbish heat-treatment furnace classification impurity removal control system |
| CN109373339A (en) * | 2018-10-31 | 2019-02-22 | 西安热工研究院有限公司 | A kind of dry deslagging protection system and its working method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103939924A (en) | 2014-07-23 |
| CN103939924B (en) | 2018-05-11 |
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