CN101955824B - Complete two-stage slurry production equipment of water-coal-slurry and gasified water-coal-slurry by using low-rank coal fuel - Google Patents
Complete two-stage slurry production equipment of water-coal-slurry and gasified water-coal-slurry by using low-rank coal fuel Download PDFInfo
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Abstract
The invention relates to complete two-stage slurry production equipment of water-coal-slurry and gasified water-coal-slurry by using low-rank coal fuel, mainly used for fuel for industrial boilers and power station boilers and fuel for gasification furnaces. The complete two-stage slurry production equipment for water-coal-slurry and gasified water-coal-slurry from low-rank coal fuel comprises a low-rank coal raw material warehouse (1), a vibration feeder (2), a type conveyer (4), a crusher (5) of a reversible counterattack hammer type, a hopper lifter (6), a low-rank coal middle warehouse (7), a measuring belt machine (10), a spiral feeder (11), a high-concentration water-coal-slurry ball mill (12), a water-coal-slurry vibration sieve (13), a water-coal-slurry buffer tank (14), a water-coal-slurry filter (16), a stability treatment tank (17), a Homogenizing tank (19) and a slurry storage tank (21), wherein a bypass is divided from a discharge port of the high-concentration water-coal-slurry ball mill (12), is a fine slurry preparation system and comprises a rotary vibration sieve (27), a front inlet tank (28) of a fine grinding machine, a medium-concentration ultrafine vertical mill (31) and a slurry storage tank (29) of the fine grinding machine. The invention can improve the product concentration of the water-coal-slurry.
Description
(1) technical field
The present invention relates to a kind of complete set of manufacturing equipment for coal water slurry.Especially relate to a kind of two sections slurrying low-rank coal fuel coal water slurries and gasification complete set of manufacturing equipment for coal water slurry.Be mainly used in the fuel of Industrial Boiler and power boiler burning, and Coal Chemical Industry industry vapourizing furnace fuel.
(2) background technology
Conventional coal water slurry be by about 69% coal, about 30% water and a small amount of composite additive through ore grinding, mix certain medicament, after filtration, stability is adjusted and the technique such as homogeneous slaking is made higher concentration and with the clean fuel of the fluid liquid of certain viscosity.At present, general coal water mixture plant, slurrying coal majority is selected high-quality caking coal, but the coking coal resource reserves are few, and price can not satisfy the development of issues on CWM industrialization, so water-coal-slurry slurring should be based on the low order coal with coal.Low order coal reserves are large, and low price can with the supply of comparatively cheap price guarantee slurrying with coal, improve the economy of coal water slurry.
Pulping technique is one of water-coal-slurry slurring technology, perfect pulping process plays vital effect for the cost of the quality that improves coal water slurry and reduction coal water slurry, present most slurrying enterprise all adopts a grinding machine high density ore grinding slurrying complete production unit, and this complete production unit mainly comprises former coal bunker, oscillating feeder, rubber conveyer, Reversable back-hammering disintegrator, chapelet, intermediate bin, measuring belt conveyer, screw feeder, the high-concentration coal-water slurry ball mill, water-coal-slurry vibrating screen, the coal water slurry surge tank, filter for water coal slurry, the disposal of stability bucket, homogeneous tank and slurry can.Adopt this complete production unit technical process simple, the coking coal of suitable easy pulping, but low-rank coal slurrying complete production unit is also had following deficiency:
1, because the ore grinding raw material is shorter in the high-concentration coal-water slurry ball mill ore grinding time, after entering the surge tank stirring, the outlet of high-concentration coal-water slurry ball mill can only be the coal water slurry primary products, the thixotropy of coal water slurry a little less than, yielding stress is lower, cause the rheological of coal water slurry relatively poor, the stability of coal water slurry is lower.
2, viscosity in aqueous coal slurries is higher in the high-concentration coal-water slurry ball mill barrel, and velocity of flow is lower in the high-concentration coal-water slurry ball mill, and the ore grinding power consumption is high, and the coal slurry grain size distribution is unreasonable, and the coal water slurry product concentration is lower, and the low-rank coal water coal slurry concentration can only reach about 60%.
(3) summary of the invention
The object of the invention is to overcome above-mentioned deficiency, provide a kind of and can improve two sections slurrying low-rank coal fuel coal water slurries of coal water slurry product concentration and the complete set of manufacturing equipment for coal water slurry that gasifies.
The object of the present invention is achieved like this: a kind of two sections slurrying low-rank coal fuel coal water slurries and gasification complete set of manufacturing equipment for coal water slurry, comprise the low-rank coal raw material cabin, oscillating feeder, rubber conveyer, Reversable back-hammering disintegrator, chapelet, the low-rank coal intermediate bin, measuring belt conveyer, screw feeder, the high-concentration coal-water slurry ball mill, water-coal-slurry vibrating screen, the coal water slurry surge tank, filter for water coal slurry, the disposal of stability bucket, homogeneous tank and slurry can, described oscillating feeder is arranged at the rubber conveyer feed end, and place low-rank coal raw material cabin below, the rubber conveyer top is provided with the suspension belt magnetic separator, the rubber conveyer discharge end places the Reversable back-hammering disintegrator top, the Reversable back-hammering disintegrator discharge port places bucket lifting machine inlet capable top, the chapelet discharge port links to each other with low-rank coal intermediate bin opening for feed, low-rank coal intermediate bin discharge port links to each other with measuring belt conveyer, measuring belt conveyer links to each other with the screw feeder machine inlet capable, the screw feeder discharge port links to each other with the high-concentration coal-water slurry feed inlet of globe mill, high-concentration coal-water slurry ball mill discharging mouth links to each other with the water-coal-slurry vibrating screen opening for feed, the water-coal-slurry vibrating screen discharge port links to each other with the coal water slurry surge tank, the coal water slurry surge tank links to each other with filter for water coal slurry, the filter for water coal slurry discharge port links to each other with disposal of stability bucket opening for feed, disposal of stability bucket discharge port links to each other with homogeneous tank opening for feed, and homogeneous tank discharge port links to each other with the slurry can opening for feed; It is characterized in that: tell a bypass at high-concentration coal-water slurry ball mill discharging mouth, this bypass is the screened stock preparation system, comprise spin vibration sieve, atomizer mill enters front tank, middle concentration super fine vertical mill and atomizer mill slurry can, the spin vibration sieve opening for feed links to each other with described high-concentration coal-water slurry ball mill discharging mouth, this spin vibration sieve discharge port enters front tank opening for feed with atomizer mill and links to each other, atomizer mill enters front tank discharge port and links to each other with middle concentration super fine vertical mill opening for feed, middle concentration super fine vertical mill discharge port links to each other with atomizer mill slurry can opening for feed, atomizer mill slurry can discharge port access high-concentration coal-water slurry ball mill feeding mouth.
The invention has the beneficial effects as follows:
By telling a bypass at high-concentration coal-water slurry ball mill discharging mouth, this bypass comprises that spin vibration sieve, atomizer mill enter front tank, middle concentration super fine vertical mill and atomizer mill slurry can, after telling 8～15% primary water coal slurry and separate through spin vibration sieve from high-concentration coal-water slurry ball mill exit end, the thick slurry of≤50um enters middle concentration super fine vertical mill, thick slurry is added the water secondary carry out the grinding of middle concentration super fine vertical mill, ultra-thin slurries median size out is at 12～1gum, and concentration 50% is mobile fabulous.Ultra-thin slurries is after returning high-concentration coal-water slurry ball mill feeding mouth to pipeline, carry out mixed grinding with raw coal, greatly reduce viscosity in aqueous coal slurries in the high-concentration coal-water slurry ball mill barrel, accelerated velocity of flow in the high-concentration coal-water slurry ball mill, for the high-concentration coal-water slurry ball mill has added lubricant, reduce the ore grinding power consumption, also optimized the coal slurry grain size distribution simultaneously, improved the coal water slurry quality product.By two sections slurrying, namely one section is adopted the levigate mill of concentration super fine vertical in high-concentration coal-water slurry ball mill corase grind and the two sections employings, and finally the coal water slurry product can reach concentration 64～65.5%, compares slurrying concentration with traditional process equipment and has improved 5 percentage points.Reach stability 〉=60d, ash fusion point 〉=1250 ℃, granularity 300～320 orders, the country of viscosity 1200Mpa.S 1～2 grade of merchantable fuels slurry standard, as long as and the gasified coal water slurry size indicator reaches 200 orders, can also increase substantially output so in same category of device, produce the gasification slurry.Power consumption can reduce by 20% simultaneously.
(4) description of drawings
Fig. 1 is the overall structure synoptic diagram of two sections slurrying low-rank coal of the present invention fuel coal water slurry and gasification complete set of manufacturing equipment for coal water slurry.
Reference numeral among the figure:
Low-rank coal raw material cabin 1, oscillating feeder 2, hang belt magnetic separator 3, rubber conveyer 4, Reversable back-hammering disintegrator 5, chapelet 6, low-rank coal intermediate bin 7, rod lock 8, hand operated gate valve 9, measuring belt conveyer 10, screw feeder 11, high-concentration coal-water slurry ball mill 12, water-coal-slurry vibrating screen 13, coal water slurry surge tank 14, spiral pump 15, filter for water coal slurry 16, disposal of stability bucket 17, spiral pump 18, homogeneous tank 19, spiral pump 20, slurry can 21, spiral pump 22, magnetic flow meter 25, spiral pump 26, spin vibration sieve 27, atomizer mill enters front tank 28, atomizer mill slurry can 29, spiral pump 30, middle concentration super fine vertical mill 31, magnetic flow meter 32.
(5) embodiment
Referring to Fig. 1, Fig. 1 is the overall structure synoptic diagram of two sections slurrying low-rank coal of the present invention fuel coal water slurry and gasification complete set of manufacturing equipment for coal water slurry.As seen from Figure 1, two sections slurrying low-rank coal of the present invention fuel coal water slurry and gasification complete set of manufacturing equipment for coal water slurry, comprise low-rank coal raw material cabin 1, oscillating feeder 2, rubber conveyer 4, Reversable back-hammering disintegrator 5, chapelet 6, low-rank coal intermediate bin 7, measuring belt conveyer 10, screw feeder 11, high-concentration coal-water slurry ball mill 12, water-coal-slurry vibrating screen 13, coal water slurry surge tank 14, filter for water coal slurry 16, disposal of stability bucket 17, homogeneous tank 19, slurry can 21, spin vibration sieve 27, atomizer mill enters front tank 28, middle concentration super fine vertical mill 31 and atomizer mill slurry can 29, described oscillating feeder 2 is arranged at rubber conveyer 4 feed ends, and place low-rank coal raw material cabin 1 below, rubber conveyer 4 tops are provided with and hang belt magnetic separator 3, rubber conveyer 4 discharge ends place Reversable back-hammering disintegrator 5 tops, Reversable back-hammering disintegrator 5 discharge ports place chapelet 6 opening for feeds top, chapelet 6 discharge ports link to each other with low-rank coal intermediate bin 7 opening for feeds, low-rank coal intermediate bin 7 discharge ports link to each other with measuring belt conveyer 10, measuring belt conveyer 10 links to each other with screw feeder 11 opening for feeds, screw feeder 11 discharge ports link to each other with high-concentration coal-water slurry ball mill 12 opening for feeds, high-concentration coal-water slurry ball mill 12 discharge ports are divided into two the tunnel: the one tunnel and link to each other with water-coal-slurry vibrating screen 13 opening for feeds, water-coal-slurry vibrating screen 13 discharge ports link to each other with coal water slurry surge tank 14, coal water slurry surge tank 14 discharge ports link to each other with filter for water coal slurry 16 opening for feeds, filter for water coal slurry 16 discharge ports link to each other with disposal of stability bucket 17 opening for feeds, disposal of stability bucket 17 discharge ports link to each other with homogeneous tank 19 opening for feeds, and homogeneous tank 19 discharge ports link to each other with slurry can 21 opening for feeds; Another road links to each other with spin vibration sieve 27 opening for feeds, spin vibration sieve 27 discharge ports enter front tank 28 opening for feeds with atomizer mill and link to each other, atomizer mill enters front tank 28 discharge ports and grinds 31 opening for feeds with middle concentration super fine vertical and link to each other, middle concentration super fine vertical grinds 31 discharge ports and links to each other with atomizer mill slurry can 29 opening for feeds, and atomizer mill slurry can 29 discharge ports link to each other with high-concentration coal-water slurry ball mill 12 opening for feeds.
Low-rank coal is discharged into low-rank coal raw material cabin 1 by the coal yard shovel loader, enter rubber conveyer 4 through oscillating feeder 2 vibrating feeds, remove the impurity such as ironware through hanging belt magnetic separator 3, after by rubber conveyer 4 raw coal being sent into Reversable back-hammering disintegrator 5 (this crusher has thick piece impact crushing function and particulate hammer crushing double-click function) fragmentation, particle diameter is at 2～3mm, send into low-rank coal intermediate bin 7 through chapelet 6, the coal grain is discharged into measuring belt conveyer 10 in low-rank coal intermediate bin 7 bottoms after broken, the signal that draws according to the measuring belt conveyer inlet amount, feed back to coal water slurry following-up type automatic material-dispensing system, this system dynamically disposes the water yield under the operating mode automatically, and pharmaceutical quantities, sending into high-concentration coal-water slurry ball mill 12 by screw feeder 11 grinds, this ball mill is continous way overflow type grinding machine, the long strip shape rod iron that grinding media adopts diameter not wait, discharging-material size≤200 order percent of pass are about 40～50%, primary water coal slurry product 85～92% enters water-coal-slurry vibrating screen 13 behind the discharging end of ball mill pulp, carrying out thickness separates, larger particles and impurity no longer advance such as next procedure, stir through coal water slurry surge tank 14, the adding of Simultaneous Stabilization agent, after the coal water slurry stirring, substantially do not precipitate, through spiral pump 15 is sent coal water slurry into filter for water coal slurry 16 filter cleaners by pipeline after, carry out the stability levelling through disposal of stability bucket 17, after the 19 homogeneous slakings of homogeneous tank, formed the qualified water coal slurry this moment again.Then entering slurry can 21 stores; After telling 8～15% primary water coal slurry and separate through spin vibration sieve 27 from high-concentration coal-water slurry ball mill 12 exit end in addition, the thick slurry of≤50um enters middle concentration super fine vertical mill 31, thick slurry is added the water secondary to carry out high-efficient grinding and grinds through atomizer mill, ultra-thin slurries median size out is at 12～18um, concentration 50% is mobile fabulous.Ultra-fine water coal carries out circular grinding through return high-concentration coal-water slurry ball mill 12 feeding mouths to pipeline after.
Claims (1)
1. one kind two sections slurrying low-rank coal fuel coal water slurries and gasification complete set of manufacturing equipment for coal water slurry, comprise low-rank coal raw material cabin (1), oscillating feeder (2), rubber conveyer (4), Reversable back-hammering disintegrator (5), chapelet (6), low-rank coal intermediate bin (7), measuring belt conveyer (10), screw feeder (11), high-concentration coal-water slurry ball mill (12), water-coal-slurry vibrating screen (13), coal water slurry surge tank (14), filter for water coal slurry (16), disposal of stability bucket (17), homogeneous tank (19) and slurry can (21), described oscillating feeder (2) is arranged at rubber conveyer (4) feed end, and place low-rank coal raw material cabin (1) below, rubber conveyer (4) top is provided with and hangs belt magnetic separator (3), rubber conveyer (4) discharge end places Reversable back-hammering disintegrator (5) top, Reversable back-hammering disintegrator (5) discharge port places chapelet (6) opening for feed top, chapelet (6) discharge port links to each other with low-rank coal intermediate bin (7) opening for feed, low-rank coal intermediate bin (7) discharge port links to each other with measuring belt conveyer (10), measuring belt conveyer (10) links to each other with screw feeder (11) opening for feed, screw feeder (11) discharge port links to each other with high-concentration coal-water slurry ball mill (12) opening for feed, high-concentration coal-water slurry ball mill (12) discharge port links to each other with water-coal-slurry vibrating screen (13) opening for feed, water-coal-slurry vibrating screen (13) discharge port links to each other with coal water slurry surge tank (14), coal water slurry surge tank (14) links to each other with filter for water coal slurry (16), filter for water coal slurry (16) discharge port links to each other with disposal of stability bucket (17) opening for feed, disposal of stability bucket (17) discharge port links to each other with homogeneous tank (19) opening for feed, and homogeneous tank (19) discharge port links to each other with slurry can (21) opening for feed; It is characterized in that: tell a bypass at high-concentration coal-water slurry ball mill (12) discharge port, this bypass is the screened stock preparation system, comprise spin vibration sieve (27), atomizer mill enters front tank (28), middle concentration super fine vertical mill (31) and atomizer mill slurry can (29), spin vibration sieve (27) opening for feed links to each other with described high-concentration coal-water slurry ball mill (12) discharge port, this spin vibration sieve (27) discharge port enters front tank (28) opening for feed with atomizer mill and links to each other, atomizer mill enters front tank (28) discharge port and grinds (31) opening for feed with middle concentration super fine vertical and link to each other, middle concentration super fine vertical mill (31) discharge port links to each other with atomizer mill slurry can (29) opening for feed, atomizer mill slurry can (29) discharge port access high-concentration coal-water slurry ball mill (12) feeding mouth.
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| CN 201010273278 CN101955824B (en) | 2010-09-06 | 2010-09-06 | Complete two-stage slurry production equipment of water-coal-slurry and gasified water-coal-slurry by using low-rank coal fuel |
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| CN 201010273278 CN101955824B (en) | 2010-09-06 | 2010-09-06 | Complete two-stage slurry production equipment of water-coal-slurry and gasified water-coal-slurry by using low-rank coal fuel |
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| CN101955824A CN101955824A (en) | 2011-01-26 |
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| CN102309880A (en) * | 2011-07-08 | 2012-01-11 | 江苏秋林重工股份有限公司 | Water coal slurry filter |
| CN103184085B (en) * | 2011-12-30 | 2015-04-29 | 兖矿鲁南化肥厂 | Gasified coal-water-slurry preparation process and corresponding production line |
| CN102899109A (en) * | 2012-10-18 | 2013-01-30 | 中煤科工集团武汉设计研究院 | System device for preparing coal water slurry by long-distance pipeline coal transportation |
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| CN109628178A (en) * | 2019-02-15 | 2019-04-16 | 陕西陕化煤化工集团有限公司 | A kind of method that rod mill prepares high-concentration coal-water slurry |
| CN111849569A (en) * | 2020-06-12 | 2020-10-30 | 安徽鑫固环保股份有限公司 | Device for preparing coal water slurry by using 1-aminoanthraquinone production wastewater and using method thereof |
| CN111703922B (en) * | 2020-07-09 | 2024-05-31 | 陕西冶金设计研究院有限公司 | Method and device for combining low-rank coal conveying processing and coal storage system |
| CN113770158B (en) * | 2021-09-10 | 2022-12-06 | 中煤科工清洁能源股份有限公司 | Resource utilization method for coal gasification fine ash |
| CN114015478B (en) * | 2021-11-17 | 2022-07-05 | 西安元创化工科技股份有限公司 | Coal slurry concentration and granularity control system and method in synthetic gas production process |
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Denomination of invention: Complete two-stage slurry production equipment of water-coal-slurry and gasified water-coal-slurry by using low-rank coal fuel Effective date of registration: 20180608 Granted publication date: 20130327 Pledgee: Bank of Communications Ltd Wuxi branch Pledgor: Jiangsu Qiulin Heavy Industry Co., Ltd. Registration number: 2018320010020 |