CN209271870U - Material screening system and polynary coal chemical engineering equipment while feeding system - Google Patents
Material screening system and polynary coal chemical engineering equipment while feeding system Download PDFInfo
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- CN209271870U CN209271870U CN201821439867.7U CN201821439867U CN209271870U CN 209271870 U CN209271870 U CN 209271870U CN 201821439867 U CN201821439867 U CN 201821439867U CN 209271870 U CN209271870 U CN 209271870U
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Abstract
The utility model relates to material conveyings, specifically provide a kind of material screening system and polynary coal chemical engineering equipment feeding system simultaneously, material screening system includes: screening plant, and being based on material size size for material screening is coarse fodder and fines, and is conveyed respectively to coarse fodder and fines；Fines storehouse connects screening plant, and for receiving the fines after screening plant sieves, fines storehouse includes the surplus material recovery device for conveying fines to the first charging gear of materials device and for conveying extra fines；And coarse fodder storehouse, screening plant is connected, for receiving the coarse fodder of screening plant conveying, coarse fodder storehouse includes for conveying coarse fodder to the coarse fodder conveying device of materials device and for the crushing device that extra coarse fodder is comminuted.Material screening system provided by the utility model, realize a system can materials device to different demands carry out uninterrupted feed simultaneously, improve efficiency, solve feed and need to expect the imbalance problem in granularity and consumption, improve system reliability.
Description
Technical field
The utility model relates to materials-handling technology fields, and in particular to a kind of material screening system and polynary coalification tooling
It sets while feeding system.
Background technique
Currently, in coal chemical industry, when existing coal handling system is that coal chemical engineering equipment conveys material, by different device institute
Need the granularity of coal different, such as it is 6mm~50mm that lump coal gasification installation, which requires granularity with coal, boiler or coal water slurry gasifying device are only
The coal for receiving to be less than 6mm granularity can only first screen out the coal of granularity needed for different device in this case, then be arranged more
A independent coal handling system is conveyed respectively, currently without it is a kind of can polynary coal chemical engineering equipment to different grain size demand simultaneously
The feeding system of feed, complicated transportation system keep the diversification of coal chemical industry and the development of popularization in check.
To polynary coal chemical engineering equipment realize simultaneously be fed technical difficult points be: granularity coal amount needed for device with carry out coal
The unbalanced contradiction of granularity in amount.Such as: certain Coal Chemical Engineering Project solid material transport system is coal water slurry gasifying device, lump coal gas
Makeup is set provides feed coal and bunker coal with boiler plant respectively.Feed coal is identical with bunker coal coal.This project medium sized coal gas
What makeup was set is 6mm~50mm, coal consumption 1174t/h with coal requirement granularity, and boiler plant and coal water slurry gasifying device only connect
By the coal of≤6mm granularity, wherein boiler coal consumption is 432.88t/h, and coal water slurry gasifying device coal consumption is 1285t/h.This item
Three apply the coal that device for coal needs two kinds of granule sizes in mesh, and also not identical to the coal consumption of two kinds of granularity coals, and carrying out coal is
The coal consumption for meeting three kinds of devices simultaneously, needs to continue according to certain coal supply amount coal supply, but the unstability due to carrying out coal,
Do not ensure that the coal amount for carrying out required granularity in coal can meet just, resulting in coarse fodder and fines in this way, there are material imbalances
Problem, feeding system in the prior art can not solve the problems, such as this.
Utility model content
To solve the unbalanced technical problem of material in polynary transportation system, the utility model provides one kind can be to difference
The material screening system that the material of granularity carries out clout processing and supplies.
Meanwhile to fill up the blank of polynary coal chemical engineering equipment while feeding system, the utility model additionally provides one kind can
It is simultaneously the diversification coal chemical engineering equipment while feeding system of the materials device coal supply of a variety of different coal particle size demands.
In a first aspect, the utility model provides a kind of material screening system, comprising:
Material screening is coarse fodder and fines by screening plant, requirement based on materials device to material size size, and right
Coarse fodder and fines convey respectively；
Fines storehouse connects screening plant, and for receiving the fines after screening plant sieves, fines storehouse includes thin for conveying
Expect the surplus material recovery device to the first charging gear of materials device and for conveying extra fines；And
Coarse fodder storehouse, after being located at screening plant, for receiving the coarse fodder of screening plant conveying, coarse fodder storehouse includes thick for conveying
Material is to the coarse fodder conveying device of materials device and for the crushing device that extra coarse fodder is comminuted.
The material screening system, further includes:
Conveyer is provided with multiple discharge gates, multiple discharge gate difference for providing material for screening plant on conveyer
It is connected with screening plant.
Multiple discharge gates are provided with valve, and valve is used to control the withdrawal rate of discharge gate.
Discharge gate connects the second charging gear, connects screening plant below the second charging gear, for connecting for screening plant
Continuous even feeding.
Crushing device connects the fines conveying device under fines storehouse.
In second aspect, the utility model provides a kind of material screening method, comprising the following steps:
Material screening is coarse fodder and fines by requirement based on materials device to material size, and coarse fodder and fines are distinguished
It is delivered to coarse fodder storehouse and fines storehouse；And
Coarse fodder and fines are delivered to materials device by coarse fodder storehouse and fines storehouse respectively；
When the inventory that the materials device that the inventory stored in coarse fodder storehouse is greater than connection coarse fodder storehouse uses, in coarse fodder storehouse
Clout be transported to crushing device；
When the inventory that the materials device that the inventory stored in fines storehouse is greater than connection fines storehouse uses, fines storehouse
Clout is transported to surplus material recovery device.
In the third aspect, the utility model provides a kind of polynary coal chemical engineering equipment feeding system simultaneously, comprising:
Feeding device, for uninterruptedly providing material for feeding system；
Material screening is coarse fodder and fines by several screening plants, requirement based on materials device to material size, and right
Coarse fodder and fines convey respectively；
Several feed bins, including the coarse fodder storehouse for receiving the coarse fodder that screening plant conveys and for receiving screening plant conveying
Fines fines storehouse, coarse fodder storehouse is connected with for the crushing device that extra coarse fodder is comminuted, and fines storehouse is provided with for defeated
Send the surplus material recovery device of extra fines；And
Several materials devices, the granule size based on required material are different comprising the coarse fodder materials dress in connection coarse fodder storehouse
Set and connect the fines materials device in fines storehouse.
The discharge port in fines storehouse is provided with the first charging gear, for being fed for the fines conveying device continuous uniform.
Polynary coal chemical engineering equipment feeding system simultaneously, further includes:
Conveyer connects feeding device, and conveyer is provided with several discharge gates, and discharge gate is provided with valve, Ruo Ganpai
Material mouth is separately connected several screening plants.
Several discharge gates are all connected with the second charging gear, connect screening plant below the second charging gear, for being screening
Device continuous uniform feed.
Technical solutions of the utility model have the following beneficial effects:
1) material screening system provided by the utility model, setting screening plant sieve material, meet different use
Expect the materials demand of device, fines storehouse and coarse fodder storehouse are respectively arranged to the device of processing clout, are guaranteeing while meeting materials
When the demand of equipment, extra material can be handled, effectively solve the material imbalance problem of coarse fodder and fines.
2) material screening system provided by the utility model, screening plant are provided with conveyer conveying material, conveying before
Multiple discharge gates are offered on machine, conveyer can be fed simultaneously multiple screening plants.
3) material screening system provided by the utility model, discharge gate are provided with valve, big by the opening of control valve
It is small, it can be achieved that control to conveyer withdrawal rate.
4) material screening system provided by the utility model, discharge gate lower section connect the second charging gear, the second feed dress
Connection screening plant to be set, is fed for screening plant, the second charging gear can realize the continuous uniform feed to screening plant, so that
Material operation is more stable.
5) material screening system provided by the utility model, crushing device connects fines conveying device, when coarse fodder is excessive,
Coarse fodder can realize the integration of system, together into the fines conveying device of fines storehouse lower part for fines into crushing device is fine crushing
The continuity of Shi Tigao transportation system reduces energy consumption.
6) material screening method provided by the utility model, requirement according to materials device to material size is by material screening
For coarse fodder and fines, it is supplied to the materials device of different demands respectively to coarse fodder and fines, it is extra when coarse fodder is excessive in supplied materials
Coarse fodder can be handled through crushing device, and when fines is excessive in supplied materials, extra fines is handled through surplus material recovery device, should
Method effectively solves material imbalance problem, it can be achieved that the system of different materials demands is not shut down while being fed.
7) polynary coal chemical engineering equipment provided by the utility model feeding system simultaneously, using above-mentioned material screening system and
Method is realized a system to the coal chemical engineering equipment of different materials demands while being fed, efficiently solves and exist in the prior art
Material imbalance problem, filled up the polynary coal chemical engineering equipment in China simultaneously feeding system blank, promote coal chemical industry
The development of diversification and popularization.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram according to a kind of embodiment of material screening system provided by the utility model.
Description of symbols:
10- feeding device；20- screening plant；30- fines storehouse；The first charging gear of 31-；32- surplus material recovery device；33-
Fines conveying device；40- coarse fodder storehouse；41- crushing device；42- coarse fodder conveying device；50- drag conveyor；51- discharge gate；
The second charging gear of 52-.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.In addition, involved in the utility model different embodiments disclosed below
Technical characteristic can be combined with each other as long as they do not conflict with each other.
Material screening system and method provided by the utility model can be applied to polynary materials device feeding system simultaneously, adopt
Material imbalance problem between solving different materials devices with a system.
A kind of specific embodiment of material screening system provided by the utility model is shown in Fig. 1.As shown in Figure 1,
Material screening system provided by the utility model includes screening plant 20, fines storehouse 30 and coarse fodder storehouse 40.Screening plant 20 can be real
It is now vibrating screening machine, tension and relaxation screening machine etc., using the relative motion of bulk granular material and compass screen surface, based on materials device to material grain
The requirement of degree by material screening be coarse fodder and fines, and by after screening coarse fodder and fines be discharged respectively.Fines storehouse 30 is connected to
After screening plant 20, for receiving the fines of the conveying of screening plant 20, fines storehouse 30 includes the first charging gear 31 and clout
The discharge port in fines storehouse 30 is arranged in recyclable device 32, the first charging gear 31, for being 33 continuous uniform of fines conveying device
Feed, surplus material recovery device 32 prevent buildup in fines storehouse 30 for conveying fines extra in fines storehouse 30.Coarse fodder storehouse 40 connects
It connects after screening plant 20, for receiving the coarse fodder of the conveying of screening plant 20, coarse fodder storehouse 40 includes 42 He of coarse fodder conveying device
Crushing device 41, coarse fodder conveying device 42 are used to the coarse fodder in coarse fodder storehouse 40 being continuously and uniformly delivered to coarse fodder materials device,
Crushing device 41 is used to turn to fines for extra coarse fodder is fine crushing.
In present embodiment, screening plant material screen in 20 future is divided into coarse fodder and fines is respectively the materials device of different demands
Feed, when fine material content is higher in supplied materials, for the material supply for meeting coarse fodder materials device, fines, which generates, to be overstock, extra
Fines carries out recycling and reusing by surplus material recovery device 32.Similarly, it when coarse fodder content is higher in supplied materials, is used to meet fines
Expect the material supply of device, coarse fodder, which generates, to be overstock, and extra coarse fodder carries out the fines fine crushing that turns to by crushing device 41 and recycles.
Material screening system provided by the utility model, in the same system by feed supply and the place of clout
Reason efficiently solves the supplied materials of multi-purpose material apparatus system and need to expect the imbalance problem in granularity requirements and consumption, realizes
Same system is not shut down while being fed to more demand materials devices, integrates existing feeder apparatus, reducings the construction costs.
It in the present embodiment, further include conveyer 50, conveyer 50 is arranged before screening plant 20, and conveyer 50 can be real
It is now drag conveyor, conveyer 50 offers multiple discharge gates 51, and it is screening plant 20 that discharge gate 51, which connects screening plant 20,
Feed.Preferably, discharge gate 51 is provided with valve, and valve can be realized as gate valve, is controlled by the openings of sizes of control valve
Make the load of each discharge gate 51.In the present embodiment, by the way that multiple discharge gates 51 are arranged, multiple rows of conveyer 50 are realized
Material mouth 51 while discharge simplify feeding structure, and withdrawal rate is adjustable.
In some preferred embodiments, it is provided with the second charging gear 52 below the discharge gate 51 of conveyer 50, second
Charging gear 52 connects screening plant 20, for being fed for 20 continuous uniform of screening plant.In an illustrative embodiment
In, above-mentioned first charging gear 31, the second charging gear 52 can be realized as motor oscillating batcher, and motor oscillating batcher can will
Material uniformly, is continuously given in screening plant 20, can be the continuously and uniformly feeding of screening plant 20.However, art technology
Personnel should be appreciated that above embodiment is merely to illustrate technical solutions of the utility model, be not intended to limit the utility model,
Charging gear can also have other implementations, and the disclosure repeats no more.
In some embodiments, crushing device 41 can also connect the fines conveying device 33 of 30 lower part of fines storehouse, when thick
When expecting that clout is excessive, crushing device 41 can enter subsequent fines conveying device, at this time may be used to the comminuted formation fines of coarse fodder, fines
It is corresponding to reduce feed quantity, reduce energy consumption.
In second aspect, the utility model additionally provides a kind of material screening method, and this method is applicable to above-mentioned material
Screening system, specifically includes the following steps:
Material screening is coarse fodder and fines by requirement based on materials device to granularity, and by the coarse fodder and fines after screening
It is delivered to coarse fodder storehouse 40 and fines storehouse 30 respectively；And
Coarse fodder and fines are delivered to materials device by coarse fodder storehouse 40 and fines storehouse 30 respectively；
It is extra in coarse fodder storehouse 40 when the inventory needed for the inventory stored in coarse fodder storehouse 40 is greater than coarse fodder materials device
Coarse fodder is delivered to crushing device 41, i.e., when coarse fodder content is excessive in supplied materials, crushing device 41 carries out coarse fodder comminuted；
It is extra in fines storehouse 30 when the inventory needed for the inventory stored in fines storehouse 30 is greater than fines materials device
Fines enters surplus material recovery device 32 and is recycled, i.e., when fine material content is excessive in supplied materials, extra fines is through surplus material recovery device
32 are recycled.
Material screening method provided by the utility model solves material size and dosage by the processing to extra material
Imbalance problem, that realizes transportation system does not shut down operation, and at the same time meeting the materials device of various materials Grained Requirements
Feed requires.
In the third aspect, the utility model provides a kind of polynary coal chemical engineering equipment applied to coal chemical industry while supplying
Material system, including feeding device 10, several screening plants 20, several feed bins and several materials devices.Feeding device 10 is used for
Material is uninterruptedly provided for system, in some embodiments, feeding device 10 can be realized as belt conveyor.Screening plant 20
It can be achieved to provide using the relative motion of bulk granular material and compass screen surface based on feeding device 10 for vibrating screening machine, tension and relaxation screening machine
The granule size of material by material screening be coarse fodder and fines, and by after screening coarse fodder and fines be discharged respectively.Feed bin includes
For receiving the coarse fodder storehouse 40 of coarse fodder and receiving the fines storehouse 30 of fines, coarse fodder storehouse 40 is connected with for extra coarse fodder is comminuted
Crushing device 41, fines storehouse 30 is provided with the surplus material recovery device 32 for conveying extra fines.Materials device is based on required
The granule size of material is different comprising the coarse fodder materials device in connection coarse fodder storehouse 40 and the fines materials dress in connection fines storehouse 30
It sets.
The discharge port in fines storehouse 30 is provided with the first charging gear 31, for being fed for fines materials device continuous uniform.
It in the present embodiment, further include conveyer 50, drag conveyor 50 is arranged before screening plant 20, conveyer 50
It can be achieved as drag conveyor, conveyer 50 offers multiple discharge gates 51, and it is screening dress that discharge gate 51, which connects screening plant 20,
Set 20 feed.Preferably, discharge gate 51 is provided with valve, and valve can realize that, for gate valve, the opening by control gate valve is big
The small load to control each discharge gate 51.In the present embodiment, by the way that multiple discharge gates 51 are arranged, conveyer 50 is realized
Multiple discharge gates 51 while discharge, simplify feeding structure, and withdrawal rate is adjustable.
The second charging gear 52 is provided with below the discharge gate 51 of conveyer 50, the second charging gear 52 connects screening plant
20, for being fed for 20 continuous uniform of screening plant.In an illustrative embodiment, above-mentioned first charging gear 31,
Second charging gear 52 can realize as motor oscillating batcher, motor oscillating batcher can by material uniformly, be continuously given to sieve
It can be the continuously and uniformly feeding of screening plant 20 in separating device 20.
In a specific implementation, which is coal water slurry gasifying device, lump coal gasification installation and boiler plant point simultaneously
Indescribably for feed coal and bunker coal, feed coal is identical with bunker coal coal.Lump coal gasification installation with coal require granularity be 6mm~
50mm (coarse fodder), coal consumption 1174t/h, and only receiving≤6mm granularity coal is (thin for boiler plant and coal water slurry gasifying device
Material), wherein boiler coal consumption is 432.88t/h, and coal water slurry gasifying device coal consumption is 1285t/h.
In the present embodiment, three apply device for coal need two kinds of granule sizes coal, feeding device 10 be system not between
Disconnected offer mixing coal charge, it is coarse fodder and fines that coal charge, which enters the screening of screening plant 20, and coarse fodder and fines respectively enter coarse fodder storehouse
40 and fines storehouse 30.Coarse fodder in coarse fodder storehouse 40 enters lump coal gasification installation, and the fines in fines storehouse 30 is respectively boiler plant
It is fed with coal water slurry gasifying device.When coarse fodder content is higher in mixing coal charge, lump coal gasification installation stokehold coal bunker coal amount is high material
When position, for the material quantity for meeting boiler plant and coal water slurry gasifying device, the coarse fodder in coarse fodder storehouse 40 is hoarded, extra at this time
Coarse fodder enter crushing device 41 it is comminuted after be delivered in the fines conveying device of fines storehouse lower part, into boiler plant and water coal
Starch gasification installation stokehold coal bunker.When mixing, fine material content in coal charge is higher, boiler plant and coal water slurry gasifying device stokehold coal bunker
When for high charge level, for the material quantity for meeting lump coal gasification installation, the fines in fines storehouse 30 is hoarded, at this time extra fines into
Enter surplus material recovery device 32 to be recycled.
In some embodiments, crushing device 41 connects the fines conveying device of fines storehouse lower part, will be broken thin
Material is delivered in fines materials device fines amount of supplying, and reduces energy consumption.Preferably, surplus material recovery device 32 can be used automobile or its
He transports form.
Material screening system, method and diversification coal chemical engineering equipment provided by the utility model while feeding system, are filled up
The blank of the polynary coal chemical engineering equipment in China feeding system simultaneously, integrates existing coal chemical industry feeding system, realizes one
System can carry out uninterrupted the problem of being fed, reducing conveying equipment frequent start-stop simultaneously by the materials device to different demands respectively,
It improves efficiency, solve feed and need to expect the imbalance problem in granularity and consumption, improve system operation reliability, promote
The development of coal chemical industry.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes among the protection scope created still in the utility model.
Claims (9)
1. a kind of material screening system characterized by comprising
Screening plant (20), being based on material size size for the material screening is coarse fodder and fines, and to the coarse fodder and carefully
Material conveys respectively；
Fines storehouse (30) connects the screening plant (20), described for receiving the fines after the screening plant (20) are sieved
Fines storehouse (30) includes for conveying fines to the first charging gear (31) of materials device and for conveying more than extra fines
Expect recyclable device (32)；And
Coarse fodder storehouse (40) connects the screening plant (20), described thick for receiving the coarse fodder of the screening plant (20) conveying
Feed bin (40) includes for conveying coarse fodder to the coarse fodder conveying device (42) of materials device and for extra coarse fodder is comminuted
Crushing device (41).
2. material screening system according to claim 1, which is characterized in that further include:
Conveyer (50), for providing material for the screening plant (20), the conveyer (50) is provided with multiple discharge gates
(51), the multiple discharge gate (51) is connected separately with the screening plant (20).
3. material screening system according to claim 2, which is characterized in that
The multiple discharge gate (51) is provided with valve, and the valve is used to control the withdrawal rate of the discharge gate (51).
4. material screening system according to claim 3, which is characterized in that
The discharge gate (51) connects the second charging gear (52), and the screening dress is connected below second charging gear (52)
(20) are set, for being fed for the screening plant (20) continuous uniform.
5. material screening system according to any one of claims 1 to 4, which is characterized in that
The crushing device (41) connects the fines conveying device (33) under the fines storehouse (30).
6. a kind of polynary coal chemical engineering equipment while feeding system characterized by comprising
Feeding device (10), for uninterruptedly providing material for the feeding system；
The material screening is thick by several screening plants (20), the granule size based on the feeding device (10) offer material
Material and fines, and the coarse fodder and fines are conveyed respectively；
Several feed bins, coarse fodder storehouse (40) including the coarse fodder for receiving the screening plant (20) conveying and described for receiving
The fines storehouse (30) of the fines of screening plant (20) conveying, the coarse fodder storehouse (40) are connected with for extra coarse fodder is comminuted
Crushing device (41), the fines storehouse (30) are provided with the surplus material recovery device (32) for conveying extra fines；And
Several materials devices, the granule size based on required material are different comprising connect the coarse fodder materials dress in the coarse fodder storehouse
Set and connect the fines materials device in the fines storehouse.
7. polynary coal chemical engineering equipment according to claim 6 while feeding system, which is characterized in that
The discharge port of the fines storehouse (30) is provided with the first charging gear (31), for being that fines conveying device (33) are continuous
Spare to material.
8. polynary coal chemical engineering equipment according to claim 7 while feeding system, which is characterized in that further include:
Conveyer (50) connects the feeding device (10), and the conveyer (50) is provided with several discharge gates (51), if described
Dry discharge gate (51) is provided with valve, and several discharge gates (51) are separately connected several screening plants (20).
9. polynary coal chemical engineering equipment according to claim 8 while feeding system, which is characterized in that
Several discharge gates (51) are all connected with the second charging gear (52), below second charging gear (52) described in connection
Screening plant (20), for being fed for the screening plant (20) continuous uniform.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821439867.7U CN209271870U (en) | 2018-09-03 | 2018-09-03 | Material screening system and polynary coal chemical engineering equipment while feeding system |
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| CN201821439867.7U CN209271870U (en) | 2018-09-03 | 2018-09-03 | Material screening system and polynary coal chemical engineering equipment while feeding system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109248853A (en) * | 2018-09-03 | 2019-01-22 | 华电重工股份有限公司 | Material screening system, method and polynary coal chemical engineering equipment while feeding system |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109248853A (en) * | 2018-09-03 | 2019-01-22 | 华电重工股份有限公司 | Material screening system, method and polynary coal chemical engineering equipment while feeding system |
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