CN104180631B - A kind of coal slime rapid drying device - Google Patents
A kind of coal slime rapid drying device Download PDFInfo
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- CN104180631B CN104180631B CN201410406658.2A CN201410406658A CN104180631B CN 104180631 B CN104180631 B CN 104180631B CN 201410406658 A CN201410406658 A CN 201410406658A CN 104180631 B CN104180631 B CN 104180631B
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- 239000003245 coal Substances 0.000 title claims abstract description 62
- 238000001035 drying Methods 0.000 title claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000000428 dust Substances 0.000 claims abstract description 26
- 239000000446 fuel Substances 0.000 claims description 17
- 239000002002 slurry Substances 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 11
- 238000002485 combustion reaction Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 2
- 239000004449 solid propellant Substances 0.000 claims description 2
- 239000000047 product Substances 0.000 abstract description 16
- 239000006227 byproduct Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000000746 purification Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002893 slag Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 239000004484 Briquette Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The present invention relates to coal byproduct comprehensive utilization device field, particularly a kind of coal slime rapid drying device. Described coal slime rapid drying device was established feeding and thermal source supply section before drying beater, oven dry beater establishes product-collecting afterwards and gas purification portion is divided, and mainly comprises dosing machine, dries beater, hot gas generator, deduster, impact-type water bath dust remover and exhaust blower etc. Compared with the dry coal slime of whizzer, according to coal slime rapid drying device list cover of the present invention, daily output can reach 2000t; Product per ton only needs to consume 24.2kg standard coal, saves 10.1kg standard coal/t product than existing technique; Business Economic Benefit significantly improves, and added value product per ton increases more than 35%.
Description
Technical field
The present invention relates to coal byproduct comprehensive utilization device field, particularly a kind of coal slime rapid draingDevice.
Background technology
Coal slime refers to the semi-solid thing of the moisture formation of coal dust, is a kind of byproduct in coal production process,Because it contains a large amount of pulverized coal particles, can in the time of burning, emit a large amount of heat energy, therefore have compared with usuryBy value.
Owing to thering is the characteristics such as high-moisture, high viscosity, high retentiveness in coal slime, make coal slime be difficult to applicationIn industry, kept outside of the door by thermal power generation department for a long time, generally loess a small amount of coal slime admixture is madeBriquet and honeycomb briquette use, and sell as main outlet taking civilian.
Along with the fast development on the depth & wideth of Coal dressing, the output of coal slime obviously rises, coal slimeComprehensive utilization become problem in the urgent need to address. Because coal slime water content is many, directly mix powerThe ratio of coal is less, and if by after moisture drying wherein, can mix thermal coal and be sold to power plant.Slime drying device adopts drumdrier mostly at present, and its shortcoming is that investment is high, and floor space is large,Heat utilization rate is low, and production capacity is little, and automaticity is low, and labour intensity is large, and produces certain to environmentPollute.
Summary of the invention
The object of this invention is to provide a kind of coal slime rapid drying device, have thereby can obviously improve heat energyEffect utilization rate, reduces environmental pollution, and significantly raises labour productivity.
In order to reach above-mentioned at least one object, provide a kind of coal slime rapid drying device, described coal slimeRapid drying device mainly comprises feed bin, valve A, dosing machine, lock wind apparatus A, dries beater, removesDirt device, lock wind apparatus B, impact-type water bath dust remover, control valve A, exhaust blower, chimney, control valve B,Fuel station, combustion fan, hot gas generator, valve B, pulp tank and ore slurry pump, wherein:
The outlet conduit of feed bin is connected with dosing machine through valve A, and dosing machine is faced the charging aperture of lock wind apparatus A,The discharging opening of lock wind apparatus A is communicated with the charging aperture of drying beater; Fuel station, combustion fan, hot gasGenerator and valve B have formed the thermal source air feed system of drying beater, wherein fuel station and combustion fanBe communicated with hot gas generator respectively, the gas outlet of hot gas generator is logical with the air inlet of drying beaterCross connecting pipe and be communicated with, this connecting pipe is provided with valve B; Dry between beater and chimney and be provided with and removeDirt device, impact-type water bath dust remover, control valve A and exhaust blower, wherein: the material gas of drying beater goes outMouth is communicated with the air inlet of deduster, and the discharging opening of deduster bottom is communicated with lock wind apparatus B, lock wind apparatus BThe outlet powder of discharging be product; The gas outlet on deduster top and impact-type water bath dust removerAir inlet is communicated with, and impact-type water bath dust remover is provided with water injector, the going out of impact-type water bath dust remover topGas port is communicated with chimney by control valve A, exhaust blower, and the discharging opening of impact-type water bath dust remover bottom is logicalPiping is communicated with the entrance of pulp tank, and the outlet of pulp tank is communicated with ore slurry pump, with ore slurry pump by ore pulpSlurries in groove are squeezed into another operation; The air outlet of exhaust blower is except being communicated with chimney, also by regulatingValve B is communicated with the connecting pipe between hot gas generator and the air inlet of oven dry beater.
Described dosing machine can be constant feeder or metering screw conveyer.
Described deduster can be one or more rotoclone collectors.
Described hot gas generator can be horizontal hot gas generator or Vertical Heat gas generator, described inHot gas generator can be cylinder type or square tubular.
The fuel of described fuel station can be solid fuel, liquid fuel or gaseous fuel.
Described lock wind apparatus is electronic single flap valve, single flap valve that surges, manual single flap valve, electronic two turning overPlate valve, two flap valves or manually two flap valve surge.
Described oven dry beater can have blank concurrently, breaks up and dry the function of coal slime, is equally applicable to itIts moisture content is up to 80% adhesional wetting materiel, as carbide slag, river silt etc.
The method of work of coal slime rapid drying device of the present invention is:
1, opening valve A, is that 0～8mm, the attached water content coal slime that is 22%～28% is from material by granularityIn storehouse, send into and dry in beater through dosing machine, and from hot gas generator, by mixing fresh airThe hot gas that is 400 DEG C～450 DEG C with recyclegas, temperature carries out heat exchange, and after heat exchange, coal slime is adhered toWater content is 12%～14%, and coal slime is 2s～60s drying the time of staying in beater.
2, the coal slime that the attached water content after heat exchange is 12%～14% is drawn in deduster, warpCross deduster and collect the coal slime of getting off and be finished product coal dust, can directly use as product, also can mixEntering thermal coal China and foreign countries sells.
3, deduster dusty gas out enters the further purified treatment of impact-type water bath dust remover, water-bathWater in deduster catches dust formation slurries and enters pulp tank, and the slurries in pulp tank are squeezed into by ore slurry pumpAnother operation; Purified gas dust content≤30mg/Nm3, discharge after sending into chimney by exhaust blower.
Coal slime rapid drying device of the present invention dry establish before beater feeding and thermal source supply section, afterIf product-collecting and gas purification portion are divided, mainly comprise dosing machine, dry beater, hot gas generator,Deduster, impact-type water bath dust remover and exhaust blower etc. Compared with the dry coal slime of whizzer, according toSingle cover production capacity of coal slime rapid drying device of the present invention improves greatly, and single cover daily output can reach 2000T; Unit product hear rate is low, and product per ton only needs to consume 24.2kg standard coal, saves 10.1 than existing techniqueKg standard coal/t product; Business Economic Benefit significantly improves, and added value product per ton increases more than 35%;Automaticity is high; Reduce and pollute, the dust content in stack gas of discharge is all at 30mg/Nm3Below.
Brief description of the drawings
Fig. 1 is the schematic diagram of coal slime rapid drying device according to an embodiment of the invention.
In figure: 1 is feed bin, 2 is valve A, and 3 is dosing machine, and 4 is lock wind apparatus A, and 5 beat for dryingLoose machine, 6 is deduster, and 7 is lock wind apparatus B, and 8 is impact-type water bath dust remover, and 9 is control valve A,10 is exhaust blower, and 11 is chimney, and 12 is control valve B, and 13 is fuel station, and 14 is combustion fan, 15For hot gas generator, 16 is valve B, and 17 is pulp tank, and 18 is ore slurry pump.
Detailed description of the invention
Below embodiments of the invention are described in detail by reference to the accompanying drawings, but protection scope of the present invention is notLimited by embodiment.
As shown in Figure 1, in figure: 1 is feed bin, 2 is valve A to coal slime rapid drying device structure, 3For dosing machine, 4 is lock wind apparatus A, and 5 for drying beater, and 6 is deduster, and 7 is lock wind apparatus B, 8For impact-type water bath dust remover, 9 is control valve A, and 10 is exhaust blower, and 11 is chimney, and 12 is control valveB, 13 is fuel station, and 14 is combustion fan, and 15 is hot gas generator, and 16 is valve B, 17 arePulp tank, 18 is ore slurry pump.
According in the coal slime rapid drying device of the embodiment of the present invention, between feed bin 1 and oven dry beater 5Be provided with valve A2, dosing machine 3, lock wind apparatus A4, the discharging opening of lock wind apparatus A4 and oven dry beater 5Charging aperture be communicated with; Fuel station 13 and dry between beater 5 be provided with combustion fan 14, hot gas is sent outRaw device 15 and valve B16, the gas outlet of hot gas generator 15 by pipeline with dry beater 5Air inlet is communicated with; The material gas of drying beater 5 exports between chimney 11 and is provided with deduster 6, lock wind apparatusB7, impact-type water bath dust remover 8, control valve A9, exhaust blower 10, pulp tank 17 and ore slurry pump 18Deng.
According in the coal slime rapid drying device of the embodiment of the present invention, the outlet of feed bin 1 and valve A2 connectLogical, valve A2 is communicated with dosing machine 3, and the discharging opening of dosing machine 3 is communicated with lock wind apparatus A4, lock windDevice A4 is communicated with the charging aperture of drying beater 5.
According in the coal slime rapid drying device of the embodiment of the present invention, 14 points of fuel station 13 and combustion fansBe not communicated with hot gas generator 15, the gas outlet of hot gas generator 15 is entered with oven dry beater 5Gas port is communicated with by connecting pipe, and connecting pipe is provided with valve B16.
According in the coal slime rapid drying device of the embodiment of the present invention, the material gas outlet of drying beater 5 withThe air inlet of deduster 6 is communicated with, and the discharging opening of deduster 6 bottoms is communicated with lock wind apparatus B7, lock wind apparatus BThe material that 7 outlet is exported is required product (being dried coal slime); Going out of deduster 6 topsGas port is communicated with the air inlet of impact-type water bath dust remover 8, and impact-type water bath dust remover 8 is provided with water spray dressPut, the gas outlet on impact-type water bath dust remover 8 tops is by control valve A9, exhaust blower 10 and chimney 11Be communicated with, the discharging opening of impact-type water bath dust remover 8 bottoms is communicated with pulp tank 17, in pulp tank 17Slurries are squeezed into another operation with ore slurry pump 18.
According in the coal slime rapid drying device of the embodiment of the present invention, the air outlet of exhaust blower 10 except with cigaretteOutside chimney 11 is communicated with, also by the air inlet of control valve B12 and hot gas generator 15 and oven dry beater 5Connecting pipe between mouthful is communicated with.
According in the coal slime rapid drying device of the embodiment of the present invention, drying beater 5 can have and cut simultaneouslyMaterial, break up and dry the function of coal slime, similarly, also applicable to other adhesional wetting materiel, as carbide slag,River silt etc. That is to say, be also applicable to other sticky wet things according to the coal slime rapid drying device of the present embodimentThe rapid draing of material.
Embodiment 1
What adopt according to the feed bin 1 in the embodiment of the present invention is steel matter unsymmetric structure, and volume is 50m3。
What adopt according to the valve A2 in the embodiment of the present invention is bar type choke valve, and specification is 1000 × 720mm。
What adopt according to the dosing machine 3 in the embodiment of the present invention is constant feeder, and specification isB1000×3500mm。
What adopt according to the lock wind apparatus A4 in the embodiment of the present invention is Hydraulic Double flap valve, and specification isB600×1800mm。
Be Φ 2700 × 2100mm according to the specification of the oven dry beater 5 in the embodiment of the present invention.
What adopt according to the deduster 6 in the embodiment of the present invention is high efficiency cyclonic dust collector combination, and specification is2 × Φ 1900mm, dust-collecting efficiency is 94%.
Be Φ 3500mm according to the specification of the impact-type water bath dust remover 8 in the embodiment of the present invention, dedustingEfficiency is 99%.
What adopt according to the control valve A9 in the embodiment of the present invention is pneumatic control valve, and specification isDN＝1200mm，PN＝0.25MPa。
Be Q=105000m according to the specification of the exhaust blower 10 in the embodiment of the present invention3/h，P＝7.5kPa。
Be Φ 1350mm according to the specification of the chimney 11 in the embodiment of the present invention.
What adopt according to the control valve B12 in the embodiment of the present invention is pneumatic control valve, and specification isDN＝800mm，PN＝0.25MPa。
What adopt according to the fuel station 13 in the embodiment of the present invention is coal bed gas, and its as fired basis calorific capacity is12730kJ/Nm3。
What adopt according to the combustion fan 14 in the embodiment of the present invention is centrifugal blower, and specification isQ＝5500m3/h，P＝3.5kPa。
What adopt according to the hot gas generator 15 in the embodiment of the present invention is vertical cylinder formula, its caloric value232×105kJ/h。
What adopt according to the valve B16 in the embodiment of the present invention is pneumatic control valve, and its specification isDN＝600mm，PN＝0.25MPa。
What adopt according to the pulp tank 17 in the embodiment of the present invention is band mechanical agitation flat-bottom slot, and its specification isΦ3×3m。
What adopt according to the ore slurry pump 18 in the embodiment of the present invention is slag stock pump, and specification is Q=3.5m3/h，H＝30m。
Processing wet slime content according to the day of the coal slime rapid drying device in the embodiment of the present invention is 1000t.
Adopt according to the technique after the coal slime rapid drying device of the embodiment of the present invention compared with the prior art,The factory of identical scale production capacity, produces energy according to single cover of the coal slime rapid drying device of the embodiment of the present inventionPower improves greatly, and single cover daily output can reach 2000t; Unit product hear rate is low, and product per ton only needs to consume24.2kg standard coal, saves 10.1kg standard coal/t product, saving rate than the product of existing explained hereafter30% left and right; Business Economic Benefit significantly improves, and added value product per ton increases more than 35%; AutomationDegree is high; Reduce and pollute, the dust content in stack gas of discharge can be at 30mg/Nm3Below.
Claims (6)
1. a coal slime rapid drying device, is characterized in that, comprise feed bin, valve A, dosing machine,Lock wind apparatus A, dry beater, deduster, lock wind apparatus B, impact-type water bath dust remover, control valve A,Exhaust blower, chimney, control valve B, fuel station, combustion fan, hot gas generator, valve B, ore depositStock tank and ore slurry pump, wherein: the outlet conduit of feed bin is connected with dosing machine through valve A, and dosing machine is facedThe charging aperture of lock wind apparatus A, the discharging opening of lock wind apparatus A is communicated with the charging aperture of drying beater; Fuel stationBe communicated with hot gas generator respectively with combustion fan, the gas outlet of hot gas generator by valve B withThe air inlet of drying beater is communicated with by connecting pipe; The material gas outlet of oven dry beater and dedusterAir inlet is communicated with, and the discharging opening of deduster bottom is communicated with lock wind apparatus B; The gas outlet on deduster top withThe air inlet of impact-type water bath dust remover is communicated with, and impact-type water bath dust remover is provided with water injector, impact typeThe gas outlet on wet dust collector top is communicated with chimney by control valve A, exhaust blower, and impulse type water bath removesThe discharging opening of dirt device bottom is communicated with the entrance of pulp tank by pipeline, and the outlet of pulp tank and ore slurry pump connectLogical; The air outlet of exhaust blower is also by the air inlet of control valve B and hot gas generator and oven dry beaterBetween connecting pipe be communicated with.
2. coal slime rapid drying device according to claim 1, is characterized in that, dosing machine is for fixedAmount batcher or metering screw conveyer.
3. coal slime rapid drying device according to claim 1, is characterized in that, deduster is oneIndividual or multiple rotoclone collectors.
4. coal slime rapid drying device according to claim 1, is characterized in that, hot gas occursDevice is horizontal hot gas generator or Vertical Heat gas generator, and hot gas generator is cylinder type or square tubeType.
5. coal slime rapid drying device according to claim 1, is characterized in that, in fuel stationFuel is solid fuel, liquid fuel or gaseous fuel.
6. coal slime rapid drying device according to claim 1, is characterized in that, lock wind apparatus AWith lock wind apparatus B be electronic single flap valve, single flap valve that surges, manual single flap valve, the electronic pair of flap valve,Two flap valves or manually two flap valve surge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410406658.2A CN104180631B (en) | 2014-08-15 | 2014-08-15 | A kind of coal slime rapid drying device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410406658.2A CN104180631B (en) | 2014-08-15 | 2014-08-15 | A kind of coal slime rapid drying device |
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| CN104180631A CN104180631A (en) | 2014-12-03 |
| CN104180631B true CN104180631B (en) | 2016-05-18 |
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| CN201410406658.2A Active CN104180631B (en) | 2014-08-15 | 2014-08-15 | A kind of coal slime rapid drying device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106369937B (en) * | 2016-11-01 | 2019-06-04 | 兖矿集团有限公司 | A kind of coal slime drying system and its drying process |
| CN111981788A (en) * | 2020-08-07 | 2020-11-24 | 佛山市冠恒丰机电设备有限公司 | Vertical dryer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB346783A (en) * | 1930-01-17 | 1931-04-17 | Charles Mitchell Smith | Improvements in, or relating to, the drying of minerals and other substances |
| CN201129912Y (en) * | 2007-11-16 | 2008-10-08 | 沂源瑞丰高分子材料有限公司 | Heated air circulation heating apparatus of spray drying tower |
| CN102120941A (en) * | 2010-01-11 | 2011-07-13 | 天华化工机械及自动化研究设计院 | Lignite Drying Impulse Dust Removal Washing and Drying Process |
| CN102564067A (en) * | 2010-12-10 | 2012-07-11 | 天华化工机械及自动化研究设计院 | Rotary cylindrical drier catalyst drying method and equipment |
| CN103604278A (en) * | 2013-12-05 | 2014-02-26 | 长安大学 | Mechanical dispersion fluidization drying method and equipment for coal slime |
| CN204063848U (en) * | 2014-08-15 | 2014-12-31 | 沈阳鑫博工业技术发展有限公司 | A kind of coal slime rapid drying device |
-
2014
- 2014-08-15 CN CN201410406658.2A patent/CN104180631B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB346783A (en) * | 1930-01-17 | 1931-04-17 | Charles Mitchell Smith | Improvements in, or relating to, the drying of minerals and other substances |
| CN201129912Y (en) * | 2007-11-16 | 2008-10-08 | 沂源瑞丰高分子材料有限公司 | Heated air circulation heating apparatus of spray drying tower |
| CN102120941A (en) * | 2010-01-11 | 2011-07-13 | 天华化工机械及自动化研究设计院 | Lignite Drying Impulse Dust Removal Washing and Drying Process |
| CN102564067A (en) * | 2010-12-10 | 2012-07-11 | 天华化工机械及自动化研究设计院 | Rotary cylindrical drier catalyst drying method and equipment |
| CN103604278A (en) * | 2013-12-05 | 2014-02-26 | 长安大学 | Mechanical dispersion fluidization drying method and equipment for coal slime |
| CN204063848U (en) * | 2014-08-15 | 2014-12-31 | 沈阳鑫博工业技术发展有限公司 | A kind of coal slime rapid drying device |
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