CN204285498U - A kind of dry method coal slurry industry - Google Patents
A kind of dry method coal slurry industry Download PDFInfo
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- CN204285498U CN204285498U CN201420703645.7U CN201420703645U CN204285498U CN 204285498 U CN204285498 U CN 204285498U CN 201420703645 U CN201420703645 U CN 201420703645U CN 204285498 U CN204285498 U CN 204285498U
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Abstract
The utility model relates to COAL-WATER SLURRY TECHNOLOGY field, particularly relates to a kind of dry method coal slurry industry, and its structure comprises coal bunker, Gravimetric Coal Feeders, coal pulverizer, Pulverized Coal Bin, screw(-type) feeder, tank of sizing mixing, slurry can and proportioner.Compared with prior art, a kind of dry method coal slurry industry of the present utility model can obtain better beating results, thus can produce the paper mould product of high strength.Compared with prior art, the coal slurry storage cycle obtained by the utility model is short, can not produce deposition, ensure that the stable of supply, and efficiency of combustion is high, greatly reduces cost of manufacture and the operating cost of water-coal-slurry.
Description
Technical field
The utility model relates to COAL-WATER SLURRY TECHNOLOGY field, particularly relates to a kind of dry method coal slurry industry.
Background technology
Water-coal-slurry be by the coal of about 65%, the water of 34% and 1% additive obtained by Physical Processing a kind of low stain, high efficiency, can Cemented filling for oily coal based fluid fuel.It changes the traditional combustion mode of coal, shows huge environmental protection and energy saving advantage.
Usual water-coal-slurry is all finished pulp, and in order to ensure stability and the storage cycle of product, prior art adopts wet method slurrying mostly, but for the enterprise of cauldron, use finished pulp, the under-supply of product can be caused, and transport and carrying cost higher.
Summary of the invention
The purpose of this utility model is avoid weak point of the prior art and provide a kind of dry method coal slurry industry, and prepared water-coal-slurry supply is stable, cost-saving and efficiency of combustion is high.
The purpose of this utility model is achieved through the following technical solutions:
A kind of dry method coal slurry industry is provided, comprise coal bunker, Gravimetric Coal Feeders, coal pulverizer, Pulverized Coal Bin, screw(-type) feeder, to size mixing tank and slurry can, the discharging opening of described coal bunker is communicated with through the charging aperture of described Gravimetric Coal Feeders with described coal pulverizer, the discharging opening of described coal pulverizer is communicated with the charging aperture of Pulverized Coal Bin, the discharging opening of described Pulverized Coal Bin is communicated with the charging aperture of described screw(-type) feeder, to size mixing described in the discharging opening of described screw(-type) feeder connects tank, described tank of sizing mixing is connected with described slurry can by the first screw pump, the grout outlet of described slurry can is connected to hot-blast stove stokehold tank by the second screw pump, described coal pulverizer is provided with air inlet, described air inlet is communicated with by warm-air pipe and boiler hot-blast outlet,
Also include proportioner, described proportioner comprises dispersant storage tank, water pot and stabilizing agent storage tank, described dispersant storage tank is connected by the charging aperture of delivery pump with described screw(-type) feeder, and described water pot is connected with the charging aperture of described tank of sizing mixing respectively with described stabilizing agent storage tank.
Wherein, described coal pulverizer is low speed coal mill.
Wherein, the top of described Pulverized Coal Bin is provided with dust arrester, and described dust arrester comprises deduster and air exhauster, and the input of described deduster is communicated with the top of described Pulverized Coal Bin, and the output of described deduster is communicated with described air exhauster.
Wherein, described Gravimetric Coal Feeders is provided with two.
Wherein, the granularity of the broken coal of described coal bunker employing is less than 10mm.
Wherein, size mixing described in tank and described slurry can is provided with agitator and liquid level gauge.
the beneficial effects of the utility model:
During a kind of dry method coal slurry industry work of the present utility model, coal grain after fragmentation, by Belt Conveying to coal bunker, the coal grain that coal bunker discharging opening exports is delivered to coal pulverizer and grinds after Gravimetric Coal Feeders is weighed, air inlet introducing boiler hot blast of coal pulverizer carries out drying simultaneously, the moisture content of coal is dried to less than 5%, the coal dust being ground to desired particle size is delivered to Pulverized Coal Bin through hot blast, then screw(-type) feeder is delivered to, dispersant is added into screw(-type) feeder by proportioner, screw(-type) feeder is delivered to after coal dust and dispersant tank of sizing mixing, tank of sizing mixing regulates the consumption of water and stabilizing agent according to dry coal weight, coal slurry is made after agitator stirs, coal slurry is delivered to the of short duration storage of slurry can by the first screw pump, finally the coal slurry of slurry can is delivered to hot-blast stove stokehold tank to use.Compared with prior art, the utility model adopts a hot blast of existing boiler combustion to carry out drying to coal, thus without the need to separately building firing equipment, both flow process was simplified, also save the energy, and the moisture content controlling coal is below 5%, and then the output efficiency of coal-grinding can be improved, compared with prior art, adopt the on-the-spot slurrying of this preparation system, coal slurry storage cycle is short, deposition can not be produced, ensure that the stable of supply, and efficiency of combustion is high, the dispersant used in pulping process compares finished product water-coal-slurry method for making consumption with the consumption of stabilizing agent is low by 0.2% ~ 0.5%, thus the cost of manufacture of water-coal-slurry is greatly reduced, save operating cost.
Accompanying drawing explanation
Utilize accompanying drawing to be described further the utility model, but the content in accompanying drawing is not formed any restriction of the present utility model.
Fig. 1 is the structural representation of a kind of dry method coal slurry industry of the present utility model.
Reference numeral:
Coal bunker 1, Gravimetric Coal Feeders 2, coal pulverizer 3, Pulverized Coal Bin 4, screw(-type) feeder 5, tank 6 of sizing mixing;
Proportioner 7, dispersant storage tank 71, water pot 72, stabilizing agent storage tank 73;
First screw pump 8, second screw pump 9, slurry can 10, hot-blast stove stokehold tank 11, deduster 12, air exhauster 13.
Detailed description of the invention
With the following Examples and accompanying drawing the utility model is described in further detail.
A kind of dry method coal slurry industry of the present utility model, as shown in Figure 1, comprise coal bunker 1, Gravimetric Coal Feeders 2, coal pulverizer 3, Pulverized Coal Bin 4, screw(-type) feeder 5, to size mixing tank 6 and slurry can 10, the discharging opening of coal bunker 1 is communicated with through the charging aperture of Gravimetric Coal Feeders 2 with coal pulverizer 3, the discharging opening of coal pulverizer 3 is communicated with the charging aperture of Pulverized Coal Bin 4, the discharging opening of Pulverized Coal Bin 4 is communicated with the charging aperture of screw(-type) feeder 5, the discharging opening of screw(-type) feeder 5 connects tank 6 of sizing mixing, tank 6 of sizing mixing is connected with slurry can 10 by the first screw pump 8, the grout outlet of slurry can 10 is connected to hot-blast stove stokehold tank 11 by the second screw pump 9, coal pulverizer 3 is provided with air inlet, air inlet is communicated with by warm-air pipe and boiler hot-blast outlet.
Adopt boiler hot blast to enter coal pulverizer 3, the moisture content of coal is dried to less than 5%, is conducive to better coal-grinding like this, also better can combine with dispersant after coal-grinding, improve the hydrophily of coal dust and surperficial repulsion better.Compared with prior art, without the need to separately building firing equipment, both simplifying flow process, also saving the energy.
Dry method coal slurry industry of the present utility model also includes proportioner 7, proportioner 7 comprises dispersant storage tank 71, water pot 72 and stabilizing agent storage tank 73, dispersant storage tank 71 is connected by the charging aperture of delivery pump with screw(-type) feeder 5, and water pot 72 and stabilizing agent storage tank 73 are connected with the charging aperture of tank 6 of sizing mixing respectively.
Dispersant is added into screw(-type) feeder 5, enable coal dust better with dispersant, the consumption of dispersant is 1% of dry coal.
Size mixing in tank 6 and regulate proportioning water and stabilizing agent according to dry coal weight, water content 32%, coal content about 65%, the amount of coming into operation of stabilizing agent is 0.5%.Stir after mediation through agitator, use screw pump to be delivered to slurry can 10, slurry can 10 is of short duration storage water-coal-slurry, is directly delivered to the tank 11 feed burning of hot-blast stove stokehold through the second screw pump 9.
Concrete, coal pulverizer 3 is low speed coal mill 3, discharging-material size R90=20%, 50t/h.
Concrete, the top of Pulverized Coal Bin 4 is provided with dust arrester, and dust arrester comprises deduster 12 and air exhauster 13, and the input of deduster 12 is communicated with the top of Pulverized Coal Bin 4, and the output of deduster 12 is communicated with air exhauster 13.
Concrete, Gravimetric Coal Feeders 2 is provided with two.
Concrete, the granularity of the broken coal that coal bunker 1 adopts is less than 10mm.
Concrete, size mixing tank 6 and slurry can 10 are provided with agitator and liquid level gauge.
Its operation principle is as follows:
Coal grain after fragmentation, by Belt Conveying to coal bunker 1, the coal grain that coal bunker 1 discharging opening exports is delivered to and grinds to coal pulverizer 3 after Gravimetric Coal Feeders 2 is weighed, air inlet introducing boiler hot blast of coal pulverizer 3 carries out drying simultaneously, the moisture content of coal is dried to less than 5%, the coal dust being ground to desired particle size is delivered to Pulverized Coal Bin 4 through hot blast, then screw(-type) feeder 5 is delivered to, dispersant is added into screw(-type) feeder 5 by proportioner 7, screw(-type) feeder 5 is delivered to after coal dust and dispersant tank 6 of sizing mixing, tank 6 of sizing mixing regulates the consumption of water and stabilizing agent according to dry coal weight, coal slurry is made after agitator stirs, coal slurry is delivered to the of short duration storage of slurry can 10 by the first screw pump 8, finally the coal slurry of slurry can 10 is delivered to hot-blast stove stokehold tank 11 to use.
Finally should be noted that; the restriction of above embodiment only for illustration of the technical solution of the utility model but not to the utility model protection domain; although be explained in detail the utility model with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to the technical solution of the utility model or equivalent replacement, and not depart from essence and the scope of technical solutions of the utility model.
Claims (6)
1. a dry method coal slurry industry, it is characterized in that: comprise coal bunker, Gravimetric Coal Feeders, coal pulverizer, Pulverized Coal Bin, screw(-type) feeder, to size mixing tank and slurry can, the discharging opening of described coal bunker is communicated with through the charging aperture of described Gravimetric Coal Feeders with described coal pulverizer, the discharging opening of described coal pulverizer is communicated with the charging aperture of Pulverized Coal Bin, the discharging opening of described Pulverized Coal Bin is communicated with the charging aperture of described screw(-type) feeder, to size mixing described in the discharging opening of described screw(-type) feeder connects tank, described tank of sizing mixing is connected with described slurry can by the first screw pump, the grout outlet of described slurry can is connected to hot-blast stove stokehold tank by the second screw pump, described coal pulverizer is provided with air inlet, described air inlet is communicated with by warm-air pipe and boiler hot-blast outlet,
Also include proportioner, described proportioner comprises dispersant storage tank, water pot and stabilizing agent storage tank, described dispersant storage tank is connected by the charging aperture of delivery pump with described screw(-type) feeder, and described water pot is connected with the charging aperture of described tank of sizing mixing respectively with described stabilizing agent storage tank.
2. a kind of dry method coal slurry industry according to claim 1, is characterized in that: described coal pulverizer is low speed coal mill.
3. a kind of dry method coal slurry industry according to claim 1, it is characterized in that: the top of described Pulverized Coal Bin is provided with dust arrester, described dust arrester comprises deduster and air exhauster, the input of described deduster is communicated with the top of described Pulverized Coal Bin, and the output of described deduster is communicated with described air exhauster.
4. a kind of dry method coal slurry industry according to claim 1, is characterized in that: described Gravimetric Coal Feeders is provided with two.
5. a kind of dry method coal slurry industry according to claim 1, is characterized in that: the granularity of the broken coal that described coal bunker adopts is less than 10mm.
6. a kind of dry method coal slurry industry according to claim 1, is characterized in that: described in size mixing tank and described slurry can be provided with agitator and liquid level gauge.
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| CN201420703645.7U CN204285498U (en) | 2014-11-21 | 2014-11-21 | A kind of dry method coal slurry industry |
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| CN201420703645.7U CN204285498U (en) | 2014-11-21 | 2014-11-21 | A kind of dry method coal slurry industry |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105623759A (en) * | 2015-12-21 | 2016-06-01 | 浙江煤科清洁能源有限公司 | Preparation method of fuel coal water slurry master batches |
| CN110404435A (en) * | 2019-07-31 | 2019-11-05 | 艾迪机器(杭州)有限公司 | A kind of ratio modulation of water-coal-slurry, conveying integrated device |
| CN114100386A (en) * | 2021-02-19 | 2022-03-01 | 恒力石化（大连）炼化有限公司 | Preparation system and process of coal water slurry additive |
| CN114632442A (en) * | 2022-03-27 | 2022-06-17 | 周凯 | Preparation device for preparing oligomer by using superfine blast furnace slag powder |
-
2014
- 2014-11-21 CN CN201420703645.7U patent/CN204285498U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105623759A (en) * | 2015-12-21 | 2016-06-01 | 浙江煤科清洁能源有限公司 | Preparation method of fuel coal water slurry master batches |
| CN110404435A (en) * | 2019-07-31 | 2019-11-05 | 艾迪机器(杭州)有限公司 | A kind of ratio modulation of water-coal-slurry, conveying integrated device |
| CN110404435B (en) * | 2019-07-31 | 2024-05-07 | 艾迪机器(杭州)有限公司 | Integrated device for proportioning and conveying coal water slurry |
| CN114100386A (en) * | 2021-02-19 | 2022-03-01 | 恒力石化（大连）炼化有限公司 | Preparation system and process of coal water slurry additive |
| CN114632442A (en) * | 2022-03-27 | 2022-06-17 | 周凯 | Preparation device for preparing oligomer by using superfine blast furnace slag powder |
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