CN203403073U - Upgrading, drying and forming equipment for lignite - Google Patents
Upgrading, drying and forming equipment for lignite Download PDFInfo
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- CN203403073U CN203403073U CN201320465884.9U CN201320465884U CN203403073U CN 203403073 U CN203403073 U CN 203403073U CN 201320465884 U CN201320465884 U CN 201320465884U CN 203403073 U CN203403073 U CN 203403073U
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Abstract
The utility model discloses upgrading, drying and forming equipment for lignite. The equipment comprises a crusher, a dryer and a forming machine, wherein the forming machine is provided with an inlet for feeding a dry material from a dry material outlet of the dryer; the equipment is characterized by also comprising a stirrer; the stirrer is provided with a material inlet for feeding coal dust from a coal dust outlet of the crusher; the dryer is provided with a wet material inlet for feeding a material from a material outlet of the stirrer; the stirrer is also provided with a sodium hydroxide feed port, a water vapor inlet and a water vapor outlet. The upgrading, drying and forming equipment for the lignite realizes integrated continuous clean production of upgrading, drying and forming of the lignite, and is suitable for large-scale industrial production of the upgrading, drying and forming of the lignite.
Description
Technical field
The utility model belongs to brown coal upgrading technical field of drying, is specifically related to a kind of equipment of brown coal upgrading drying and moulding.
Background technology
China takes the country of primary energy source resource as the leading factor with coal, coal can provide more than 65% primary energy source, and coal production occupies first place in the world, and increases year by year.The coal resources workable reserve of China occupies third place in the world, accounts for 11.5% of world's total reserves.Wherein brown coal reserves account for 16% of world's brown coal total reserves, and major part concentrates on North China.Along with to the continuous increase of energy demand and the overexploitation to bituminous coal, anthracite resource, China will be more and more important to the development and utilization of brown coal.Compare with bituminous coal, hard coal, the advantage of brown coal is that price is lower, and reactive behavior is high, but its calorific value is relatively low, and water content is higher, is generally 25-60%.Moisture in brown coal increases transportation cost, affects boiler operatiopn, reduces power plant efficiency, increase greenhouse gas emission, so the exploitation of brown coal drying and upgrading technology and equipment is cleaner production and the key of effectively utilizing brown coal.
The upgrading of brown coal refers to that brown coal at high temperature stand to change into the upgraded coal with bituminous coal character after dehydration and thermolysis effect, outside brown coal dehydration dis part moisture, also be accompanied by the variation of the Nomenclature Composition and Structure of Complexes of some coals, it is mainly caused by dehydration and process, so brown coal upgrading process is mainly the dehydration of brown coal.Aftershaping is processed in moisture is high, calorific value is low brown coal dehydration upgrading, can significantly reduce Coal ' moisture, improve thermal value, increase product density, prevent spontaneous combustion of coal, after brown coal upgrading processing, its composition and character level off to bituminous coal, and after moulding, be convenient to transportation and store, be beneficial to the multiple uses such as generating, gas making, chemical industry, become high value added product.
The significance of brown coal upgrading drying and moulding is: 1) for transportation, the handling charges of coal has also determined the price of coal, a large amount of moisture is grown to distance to be carried, virtually increased the cost of coal, the high moisture content of brown coal has limited the brown coal of this area to long distance transportation, in northern cold season, high-moisture brown coal are all very difficult at aspects such as carrying and storages, and are more conducive to utilize, transport and storage through the dried brown coal of upgrading; 2) for generating, the advantage of brown coal is with low cost, it is 1/3～1/4 of black coal generating, 1/6～1/7 of natural gas power, yet its shortcoming is maximum discharge amount, low heat value and greenhouse gases (GHG) emission problem, and its moisture of the dried brown coal of upgrading reduces, after thermal value increase, oxidation rate step-down, combustion, the quantity discharged of greenhouse gases is little, is more conducive to power plant's generating; 3) the dried brown coal of upgrading are hot-forming through high-voltage double-roller forming machine, obtain upgrading moulded coal, and moulding can increase brown coal density, and can reduce moisture resorption, make it be more conducive to transportation, store and reduce environmental pollution; 4) the hot-forming range of application of expanding brown coal of brown coal upgrading, such as being directly used in coking, producing coke and coal tar wet goods byproduct, and for BGL and Lurgi gasifier, production combustion gas and synthetic gas etc.
At present, brown coal drying and upgrading mainly adopt that roller drying, tubulose are dry, air stream drying, fluidised bed drying, hotblast stove are dry etc., conventional upgrading drying plant comprises crusher, drying machine, forming machine, this equipment in process of production coal ash is full of whole workshop, polluted air not only, there is inflammable and explosive danger, and serious threat operator's health; Meanwhile, in the moisture of volatilization, contain a large amount of coal ash, be unfavorable for the recovery of moisture; The intensity of the moulded coal of producing is also not ideal, can not meet conveyor need of production, therefore realizes large-scale industrial production more difficult.
Summary of the invention
The purpose of this utility model is to provide a kind of equipment of brown coal upgrading drying and moulding, has solved the coal ash pollution problem in brown coal upgrading drying and moulding process, improves the intensity of moulded coal.
In order to realize above object, the technical scheme that the utility model adopts is: a kind of equipment of brown coal upgrading drying and moulding, comprise crusher, drying machine and forming machine, described forming machine is provided with the import entering for the siccative from the drier outlet of drying machine, also comprise stirrer, described stirrer is provided with the material inlet entering for the coal dust from the discharge of crusher, and described drying machine is provided with the wet feed import that the material for the material outlet from stirrer enters; On described stirrer, be also provided with sodium hydroxide charging opening, water vapor import and steam outlet.
Described drying machine is provided with hot blast import, hot-blast outlet and fly-ash separator interface.
The products export of described forming machine is provided with test sieve; The anti-material outlet of described test sieve is connected with the import of forming machine.
The equipment of brown coal upgrading drying and moulding of the present utility model, between crusher and drying machine, be provided with stirrer, on this stirrer, be also provided with sodium hydroxide charging opening, water vapor import and steam outlet, this equipment can be realized in the drying and moulding integrated quantity-produced process of brown coal upgrading, add sodium hydroxide, make it react generation Sodium salts humic acids with the humic acids in brown coal, coal dust in stirrer condenses agglomerating in chemical reaction process, reduced greatly the follow-up airborne dust producing when drying machine is dry, not only reduced topsoil, and improved Working environment, reduced the actual bodily harm to workman, reduce the coal ash content in drying machine volatilization moisture, be conducive to reclaim a large amount of moisture, the Sodium salts humic acids generating, as the binding agent of later stage moulding, has increased density and the intensity of the moulded coal of producing in follow-up roller pressing forming machine, in moulding process, without adding binding agent, just can meet transportation and need of production again, this equipment is suitable for the large-scale industrial production of brown coal upgrading drying and moulding.
Accompanying drawing explanation
Fig. 1 is the structural representation of equipment of the brown coal upgrading drying and moulding of embodiment 1;
Fig. 2 is the structural representation of equipment of the brown coal upgrading drying and moulding of embodiment 2.
Embodiment
Below in conjunction with embodiment, the utility model is further described.
The equipment of the brown coal upgrading drying and moulding of the present embodiment, as shown in Figure 1, comprise crusher 2, drying machine 3 and forming machine 4, described forming machine 4 is provided with the import entering for the siccative from the drier outlet 14 of drying machine 3, also comprise stirrer 5, described stirrer 5 is provided with the material inlet entering for the coal dust from the discharge of crusher 2, and described drying machine 3 is provided with the wet feed import 13 that the material for the material outlet from stirrer 5 enters; On described stirrer 5, be also provided with sodium hydroxide charging opening 6, water vapor import 7 and steam outlet 8.Described drying machine 3 is provided with hot blast import 9, hot-blast outlet 10 and fly-ash separator interface 12.Described hot blast import 9 is connected with the outlet of hotblast stove, and described fly-ash separator interface 12 is connected with the import of fly-ash separator.Described forming machine 4 is roller pressing forming machine.
During work, from the brown coal of brown coal run coal bin 1, enter crusher 2 and pulverize, after enter stirrer 5, mix with the sodium hydroxide adding from sodium hydroxide charging opening 6, the water vapor entering from water vapor import 7 fully reacts it; After reacted brown coal enter drying machine 3 and are dried, enter forming machine 4 moulding, the moulded coal after moulding directly enters moulded coal storehouse 5.
The equipment of the brown coal upgrading drying and moulding of the present embodiment, is with the equipment difference of embodiment 1: as shown in Figure 2, the products export of described forming machine 4 is provided with test sieve 11; The anti-material outlet of described test sieve 11 is connected with the import of forming machine 4.From test sieve 11 briquette prod out, directly enter moulded coal storehouse 5.
The effect of test sieve be by shaping apparatus product not the coal dust of moulding sift out, by the outlet of anti-material, the coal dust sifting out is returned to the import of forming machine, re-start moulding, improve the utilization ratio of resource, avoided the waste of resource, cost-saving.
Claims (3)
1. the equipment of a brown coal upgrading drying and moulding, comprise crusher, drying machine and forming machine, described forming machine is provided with the import entering for the siccative from the drier outlet of drying machine, it is characterized in that: also comprise stirrer, described stirrer is provided with the material inlet entering for the coal dust from the discharge of crusher, and described drying machine is provided with the wet feed import that the material for the material outlet from stirrer enters; On described stirrer, be also provided with sodium hydroxide charging opening, water vapor import and steam outlet.
2. the equipment of brown coal upgrading drying and moulding according to claim 1, is characterized in that: described drying machine is provided with hot blast import, hot-blast outlet and fly-ash separator interface.
3. the equipment of brown coal upgrading drying and moulding according to claim 1, is characterized in that: the products export of described forming machine is provided with test sieve; The anti-material outlet of described test sieve is connected with the import of forming machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320465884.9U CN203403073U (en) | 2013-07-31 | 2013-07-31 | Upgrading, drying and forming equipment for lignite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320465884.9U CN203403073U (en) | 2013-07-31 | 2013-07-31 | Upgrading, drying and forming equipment for lignite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203403073U true CN203403073U (en) | 2014-01-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320465884.9U Expired - Fee Related CN203403073U (en) | 2013-07-31 | 2013-07-31 | Upgrading, drying and forming equipment for lignite |
Country Status (1)
| Country | Link |
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| CN (1) | CN203403073U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103436322A (en) * | 2013-07-31 | 2013-12-11 | 郑州大城重工有限公司 | Method and equipment for upgrading, drying and forming lignite |
-
2013
- 2013-07-31 CN CN201320465884.9U patent/CN203403073U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103436322A (en) * | 2013-07-31 | 2013-12-11 | 郑州大城重工有限公司 | Method and equipment for upgrading, drying and forming lignite |
| CN103436322B (en) * | 2013-07-31 | 2016-01-20 | 郑州大城重工有限公司 | A kind of method and apparatus of brown coal upgrading drying and moulding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 Termination date: 20210731 |
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| CF01 | Termination of patent right due to non-payment of annual fee |