CN104773528A - Accurate coal blending system of silo and coal blending method of accurate coal blending system - Google Patents
Accurate coal blending system of silo and coal blending method of accurate coal blending system Download PDFInfo
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- CN104773528A CN104773528A CN201510032236.8A CN201510032236A CN104773528A CN 104773528 A CN104773528 A CN 104773528A CN 201510032236 A CN201510032236 A CN 201510032236A CN 104773528 A CN104773528 A CN 104773528A
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- silo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/32—Filling devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/34—Emptying devices
- B65G65/40—Devices for emptying otherwise than from the top
- B65G65/42—Devices for emptying otherwise than from the top using belt or chain conveyors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/04—Spreading out the materials conveyed over the whole surface to be loaded; Trimming heaps of loose materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2814/00—Indexing codes relating to loading or unloading articles or bulk materials
- B65G2814/03—Loading or unloading means
- B65G2814/0344—Control or feeding or discharging using level or weight measuring means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2814/00—Indexing codes relating to loading or unloading articles or bulk materials
- B65G2814/03—Loading or unloading means
- B65G2814/0397—Loading or unloading means for ships
Abstract
The invention discloses an accurate coal blending system of a silo. The accurate coal blending system comprises a coal blending silo, a raw coal in-silo belt conveyor, a silo roof material distribution machine, a coal blending silo bottom belt conveyor, a metering device and a finished coal out-of-silo belt conveyor, wherein a coal inlet of the raw coal in-silo belt conveyor is connected to a storage yard coal blending system, a coal outlet of the raw coal in-silo belt conveyor is connected with a coal inlet of the silo roof material distribution machine, the coal blending silo comprises a plurality of silo tubes, a coal outlet of the silo roof material distribution machine is connected with coal inlets of the silo tubes, coal outlets of the silo tubes are connected with a coal inlet of the coal blending silo bottom belt conveyor, a coal outlet of the coal blending silo bottom belt conveyor is connected with a coal inlet of the finished coal out-of-silo belt conveyor, and a coal outlet of the finished coal out-of-silo belt conveyor is connected with a finished coal storage yard or a shipment system. According to the accurate coal blending system disclosed by the invention, high-accuracy coal blending requirements are met, meanwhile, the coal blending is not limited by the number of storage yard material taking devices, and the coal blending requirements on four or more than four coal types can be met.
Description
Technical field
The invention belongs to raw material configuration and transportation art, particularly relate to the accurate Coal Blending System of a kind of silo and blending method thereof.
Background technology
Coal blending refers to by mixing to join and be processed into Mixture Density Networks, several variety classes, coal of different nature with the ature of coal demand under satisfied different combustion conditions according to a certain percentage.Coal Blending Technology can give full play to the advantage of each coal, realizes the stable of coal quantity and equalization, and is easy to coal-fired Thorough combustion, improve coal utilization efficiency, reach and save coal consumption, the object of decreasing pollution thing discharge, the safety in operation of coal combustion equipment is guaranteed simultaneously.
Coal blending is one and improves the practical technique of coal-fired quality, is in process for preparation, to there is linear additive property based on the properties of each single feed coal.It is a kind of people is the process being processed to form new coal that coal blending can be regarded as, and can obtain the coal combustion to boiler combustion situation the best.Use coal-fired coal blending can reach the large object of energy saving standard two, economic benefit is very bright simultaneously.
Current Coal Blending System is stockyard Coal Blending System mainly, expects bed blending system and belt conveyor systems respectively.
As shown in Figure 5, material bed blending system utilizes Coal Yard, and will need the coal of coal blending, heap is stored in ad-hoc location in advance according to a certain percentage, is directly undertaken mixing the object reaching coal blending by special blending reclaimer.Owing to storing up the production time needing to take other belt feeder systems in proportion in advance, whole process time span is long, if need to join multiple coal, can be subject to the restriction of Coal Stack Yard width, and the inefficiency of coal blending, lack effective control of coal blending precision simultaneously.
As shown in Figure 6, belt conveying mixing system utilizes Coal Yard and belt conveyer, stacker-reclaimer, gets Coal rank material respectively simultaneously, be delivered to mixture batch mixing belt conveyer realizing coal in proportion with multiple stage reclaimer.The metering of coal adopts the belted electronic balance on reclaimer jib, and the flow of coal then carrys out regulation and control by driver by manual type.This coal blending mode human element is large, and same accuracy is not easy to control, and for the multi items coal mixture of more than 3 kinds and 3 kinds, owing to lacking the reclaimer device of some, is not easy to realization.
Though the coal blending mode on current stockyard can realize the coal blending function on definite meaning, but owing to lacking actv. flow detection and control, all belong to the category of thick coal blending, accurate coal blending truly cannot be realized.
Summary of the invention
The present invention is in order to solve the defect and deficiency that exist in above-mentioned prior art, provide one and can realize high-precision coal blending requirement, simultaneously not by stockyard reclaimer device number quantitative limitation, the accurate Coal Blending System of silo that the coal blending that can realize 4 kinds and above coal requires and blending method thereof.
Technical scheme of the present invention: the accurate Coal Blending System of a kind of silo, comprise blending bunker, feed coal warehouse entry belt conveyer, top, storehouse material distributing machine, apron feeder at the bottom of blending bunker, gauging device, readymade coal delivers from godown belt conveyer, the coal inlet of described feed coal warehouse entry belt conveyer is connected in the Coal Blending System of stockyard, the coal outlet of feed coal warehouse entry belt conveyer connects the coal inlet of top, storehouse material distributing machine, described blending bunker comprises some storehouses cylinder, the coal outlet of top, described storehouse material distributing machine connects the coal inlet of storehouse cylinder, the coal outlet of described storehouse cylinder connects the coal inlet of apron feeder at the bottom of blending bunker, the coal outlet of apron feeder at the bottom of described blending bunker connects the coal inlet of belt feeder of weighing, the coal outlet of belt feeder of weighing connects readymade coal and to deliver from godown the coal inlet of belt conveyer, the deliver from godown coal outlet of belt conveyer of described readymade coal connects finished product coal piling field or ship-loading system.
The present invention is the silo coal blending subsystem of a set of specialty increased on the basis of existing stockyard Coal Blending System, and it can realize high-precision coal blending requirement, simultaneously not by stockyard reclaimer device number quantitative limitation, can realize the coal blending requirement of 4 kinds and above coal.
The present invention is the accurate Coal Blending Technology of silo, for realizing high-precision accurate coal blending, silo Coal Blending System in the present invention can as the subsystem of stockyard delivery system, the bypass engineering in the whole stockyard be equivalent to, and does not affect the normal key operation flow process in stockyard.
Preferably, stockyard Coal Blending System is provided with feed coal stockyard, harbour belt conveyer, and the coal inlet of described feed coal warehouse entry belt conveyer is connected on the coal outlet of feed coal stockyard, harbour belt conveyer.
Preferably, described gauging device comprises the first belted electronic balance, the second belted electronic balance and some belt feeders of weighing.
Preferably, the coal inlet end of described feed coal warehouse entry belt conveyer is provided with tramp iron separator, the first sample devices and the first belted electronic balance successively.
Preferably, bottom the cylinder of each storehouse, be equipped with a belt feeder of weighing, described in belt feeder of weighing to be arranged at the bottom of apron feeder at the bottom of storehouse and blending bunker between belt conveyer.
Preferably, described readymade coal delivers from godown on belt conveyer and is provided with the second belted electronic balance and the second sample devices successively.
Preferably, apron feeder at the bottom of feed coal stockyard, described harbour belt conveyer, feed coal warehouse entry belt conveyer, blending bunker, belt feeder of weighing, the readymade coal belt conveyer that delivers from godown is band conveyor.
A blending method for the accurate Coal Blending System of silo, comprises the steps:
1) by feed coal warehouse entry belt conveyer, coal is transported in the material distributing machine of top, storehouse from stockyard Coal Blending System;
2) top, storehouse material distributing machine is adopted to deliver in the storehouse cylinder of this coal of placement by coal distribution filling;
3) amount of delivering from godown is controlled, to ensure the precision of coal blending through belt feeder and the belt conveyer scale of weighing with high-precision weighing function again;
4) then by belt feeder of weighing, the coal prepared being transported to readymade coal delivers from godown on belt conveyer;
5) last, by the readymade coal belt conveyer that delivers from godown, readymade coal is transported to finished product heap coal yard or ship-loading system.
Preferably, in described step 1), adopt tramp iron separator to carry out deironing to feed coal, adopt the first belted electronic balance and the first sample devices measure feed coal and sample.
Preferably, adopt the second belted electronic balance and the second sample devices in described step 5), on-line monitoring is carried out to the coal of having joined, and data are fed back to belt feeder of weighing in time, readjust the flow that delivers from godown, form closed loop control, thus reach high-precision accurate coal blending.
The present invention is the silo coal blending subsystem of a set of specialty increased on the basis of existing stockyard Coal Blending System, and it can realize high-precision coal blending requirement, simultaneously not by stockyard reclaimer device number quantitative limitation, can realize the coal blending requirement of 4 kinds and above coal.
Accompanying drawing explanation
Fig. 1 is schematic flow sheet of the present invention;
Fig. 2 is structural representation of the present invention;
Fig. 3 is the side schematic view of Fig. 2;
Fig. 4 is the schematic flow sheet of the present invention when using;
Fig. 5 is the schematic flow sheet of material bed blending system;
Fig. 6 is the schematic flow sheet of belt conveying mixing system.
In Fig. 2,1. feed coal warehouse entry belt conveyer, 2. top, storehouse material distributing machine, 3. silo, 4. apron feeder, 5. belt conveyer scale, belt feeder of 6. weighing, 7. finished product produces coal belt conveyer.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further detailed explanation, but be not limiting the scope of the invention.
As Figure 1-3, the accurate Coal Blending System of a kind of silo, comprise blending bunker 3, feed coal warehouse entry belt conveyer 1, top, storehouse material distributing machine 2, apron feeder 4 at the bottom of blending bunker, gauging device 5, readymade coal delivers from godown belt conveyer 7, the coal inlet of described feed coal warehouse entry belt conveyer is connected in the Coal Blending System of stockyard, the coal outlet of feed coal warehouse entry belt conveyer connects the coal inlet of top, storehouse material distributing machine, described blending bunker comprises some storehouses cylinder, the coal outlet of top, described storehouse material distributing machine connects the coal inlet of storehouse cylinder, the coal outlet of described storehouse cylinder connects the coal inlet of apron feeder at the bottom of blending bunker, the coal outlet of apron feeder at the bottom of described blending bunker connects the coal inlet of belt feeder of weighing, the coal outlet of belt feeder of weighing connects readymade coal and to deliver from godown the coal inlet of belt conveyer, the deliver from godown coal outlet of belt conveyer of described readymade coal connects finished product coal piling field or ship-loading system.Stockyard Coal Blending System is provided with feed coal stockyard, harbour belt conveyer, and the coal inlet of described feed coal warehouse entry belt conveyer is connected on the coal outlet of feed coal stockyard, harbour belt conveyer.Gauging device comprises the first belted electronic balance, the second belted electronic balance and some belt feeders of weighing.The coal inlet end of feed coal warehouse entry belt conveyer is provided with tramp iron separator, the first sample devices and the first belted electronic balance successively.Be equipped with a belt feeder of weighing bottom the cylinder of each storehouse, described in belt feeder of weighing to be arranged at the bottom of apron feeder at the bottom of storehouse and blending bunker between belt conveyer.Readymade coal delivers from godown on belt conveyer and is provided with the second belted electronic balance and the second sample devices successively.Apron feeder at the bottom of feed coal stockyard, harbour belt conveyer, feed coal warehouse entry belt conveyer, blending bunker, the readymade coal belt conveyer that delivers from godown is band conveyor.
A blending method for the accurate Coal Blending System of silo, comprises the steps:
1) by feed coal warehouse entry belt conveyer, coal is transported in the material distributing machine of top, storehouse from stockyard Coal Blending System;
2) top, storehouse material distributing machine is adopted to deliver in the storehouse cylinder of this coal of placement by coal distribution filling;
3) amount of delivering from godown is controlled, to ensure the precision of coal blending through belt feeder and the belt conveyer scale of weighing with high-precision weighing function again;
4) then by belt feeder of weighing, the coal prepared being transported to readymade coal delivers from godown on belt conveyer;
5) last, by the readymade coal belt conveyer that delivers from godown, readymade coal is transported to finished product heap coal yard or ship-loading system.
Adopt tramp iron separator to carry out deironing to feed coal in step 1), adopt the first belted electronic balance and the first sample devices measure feed coal and sample.
Adopt the second belted electronic balance and the second sample devices in step 5), on-line monitoring is carried out to the coal of having joined, and data are fed back to belt feeder of weighing in time, readjust the flow that delivers from godown, form closed loop control, thus reach high-precision accurate coal blending.
At the bottom of blending bunker in the present invention, feed coal warehouse entry belt conveyer, top, storehouse material distributing machine, blending bunker, apron feeder, gauging device, readymade coal deliver from godown each parts of belt conveyer all separately from purchasing on the market, those component integration are formed a set of brand-new storehouse cylinder Coal Blending System by the present invention together, and therefore the concrete structure of each parts and working process are not all carefully stated.
In the present invention, the quantity of silo can determine according to required coal quantity of joining, coal is according to different kinds and ratio, advanced silo, belt feeder of weighing again through having high-precision weighing function controls to deliver from godown, to ensure the precision of coal blending, the belt feeder system that delivers from godown is configured with extra belted electronic balance and sample devices, on-line monitoring can be carried out to the coal of having joined, and data are fed back to belt feeder of weighing in time, readjust the flow that delivers from godown, form closed loop control, thus reach high-precision accurate coal blending.
Blending bunker of the present invention comprises multiple storehouses cylinder; Silo group is made to obtain application in coal blending operation.
To weigh the flow-control equipment that produce coal of belt feeder feeder as storehouse cylinder; Weigh belt feeder feeder, belt conveyer scale on belt feeder and sampling setup form closed loop control system with delivering from godown, real-time online coal blending precision to be adjusted; The belt feeder that makes to weigh is obtaining application in coal blending operation.
Claims (10)
1. the accurate Coal Blending System of silo, it is characterized in that: it comprises blending bunker, feed coal warehouse entry belt conveyer, top, storehouse material distributing machine, apron feeder at the bottom of blending bunker, gauging device, readymade coal delivers from godown belt conveyer, the coal inlet of described feed coal warehouse entry belt conveyer is connected in the Coal Blending System of stockyard, the coal outlet of feed coal warehouse entry belt conveyer connects the coal inlet of top, storehouse material distributing machine, described blending bunker comprises some storehouses cylinder, the coal outlet of top, described storehouse material distributing machine connects the coal inlet of storehouse cylinder, the coal outlet of described storehouse cylinder connects the coal inlet of apron feeder at the bottom of blending bunker, the coal outlet of apron feeder at the bottom of described blending bunker connects the coal inlet of belt feeder of weighing, the coal outlet of belt feeder of weighing connects readymade coal and to deliver from godown the coal inlet of belt conveyer, the deliver from godown coal outlet of belt conveyer of described readymade coal connects finished product coal piling field or ship-loading system.
2. the accurate Coal Blending System of a kind of silo according to claim 1, it is characterized in that: stockyard Coal Blending System is provided with feed coal stockyard, harbour belt conveyer, the coal inlet of described feed coal warehouse entry belt conveyer is connected on the coal outlet of feed coal stockyard, harbour belt conveyer.
3. the accurate Coal Blending System of a kind of silo according to claim 1, is characterized in that: described gauging device comprises the first belted electronic balance, the second belted electronic balance and some belt feeders of weighing.
4. the accurate Coal Blending System of a kind of silo according to claim 3, is characterized in that: the coal inlet end of described feed coal warehouse entry belt conveyer is provided with tramp iron separator, the first sample devices and the first belted electronic balance successively.
5. the accurate Coal Blending System of a kind of silo according to claim 3, is characterized in that: be equipped with a belt feeder of weighing bottom the cylinder of each storehouse, described in belt feeder of weighing to be arranged at the bottom of apron feeder at the bottom of storehouse and blending bunker between belt conveyer.
6. the accurate Coal Blending System of a kind of silo according to claim 3, is characterized in that: described readymade coal delivers from godown on belt conveyer and is provided with the second belted electronic balance and the second sample devices successively.
7. the accurate Coal Blending System of a kind of silo according to claim 2, is characterized in that: belt conveyer at the bottom of feed coal stockyard, described harbour belt conveyer, feed coal warehouse entry belt conveyer, blending bunker, the readymade coal belt conveyer that delivers from godown is band conveyor.
8. according to the blending method of the accurate Coal Blending System of the silo in claim 1-7 described in any one, it is characterized in that: it comprises the steps:
1) by feed coal warehouse entry belt conveyer, coal is transported in the material distributing machine of top, storehouse from stockyard Coal Blending System;
2) top, storehouse material distributing machine is adopted to deliver in the storehouse cylinder of this coal of placement by coal distribution filling;
3) amount of delivering from godown is controlled, to ensure the precision of coal blending through belt feeder and the belt conveyer scale of weighing with high-precision weighing function again;
4) then by belt feeder of weighing, the coal prepared being transported to readymade coal delivers from godown on belt conveyer;
5) last, by the readymade coal belt conveyer that delivers from godown, readymade coal is transported to finished product heap coal yard or ship-loading system.
9. the blending method of the accurate Coal Blending System of silo according to claim 8, is characterized in that: adopt tramp iron separator to carry out deironing to feed coal in described step 1), adopts the first belted electronic balance and the first sample devices measure feed coal and sample.
10. the blending method of the accurate Coal Blending System of silo according to claim 8, it is characterized in that: in described step 5), adopt the second belted electronic balance and the second sample devices, on-line monitoring is carried out to the coal of having joined, and data are fed back to belt feeder of weighing in time, readjust the flow that delivers from godown, form closed loop control, thus reach high-precision accurate coal blending.
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Cited By (18)
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| CN105565003A (en) * | 2016-03-23 | 2016-05-11 | 雏鹰农牧集团股份有限公司 | Automatic material storing and taking system |
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| CN105800332A (en) * | 2016-05-13 | 2016-07-27 | 缪磊 | Intelligent matching system for ceramic dry powder raw materials |
| CN109110388A (en) * | 2018-11-01 | 2019-01-01 | 四川三联新材料有限公司 | The molding machine and mixing arrangement that strip-shaped materials are orderly layered |
| CN110003931A (en) * | 2019-05-10 | 2019-07-12 | 北京沄汇智能科技有限公司 | A kind of coal blending control system and method |
| CN110525992A (en) * | 2019-08-19 | 2019-12-03 | 包头钢铁（集团）有限责任公司 | The blanking of big volume silo is let slip a remark and coal blending operating method |
| CN111689178A (en) * | 2020-05-19 | 2020-09-22 | 神华粤电珠海港煤炭码头有限责任公司 | Ship loader for multi-belt-line coal blending and refined coal blending transformation system thereof |
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| CN112027708A (en) * | 2020-08-31 | 2020-12-04 | 山东钢铁集团日照有限公司 | Large-diameter silo uniform blanking and coal blending device and method |
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| CN113694821A (en) * | 2021-09-13 | 2021-11-26 | 江苏立源自动化工程有限公司 | Accurate coal blending system of railway freight car |
| CN113758547A (en) * | 2021-08-23 | 2021-12-07 | 五冶集团上海有限公司 | Method for installing electronic scale of coal blending device under coal bunker |
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