CN103964145B - A kind of accurately coal blending process - Google Patents
A kind of accurately coal blending process Download PDFInfo
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- CN103964145B CN103964145B CN201410191123.8A CN201410191123A CN103964145B CN 103964145 B CN103964145 B CN 103964145B CN 201410191123 A CN201410191123 A CN 201410191123A CN 103964145 B CN103964145 B CN 103964145B
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Abstract
The present invention relates to a kind of accurately coal blending process, raw coal in one-level coal store is through the first quantitative coal supply equipment, deliver on the first load-transfer device after the metering of the first quantitative coal supply equipment and transmit, weighing result is delivered in control module by the weighing through the first belt conveyer scale; When control module judges qualified, close the 3rd port of triple valve, open the second port of triple valve, raw coal is delivered to device for coal through the second load-transfer device; When raw coal proportion nonconformity, close the second port of triple valve, open the 3rd port of triple valve, raw coal delivers to secondary coal store buffer memory through the 3rd load-transfer device; The discharging simultaneously changing the first quantitative coal supply equipment is measured, and makes that the buffering raw coal in its discharging proportioning and secondary coal store is suitable meets raw coal proportion requirement.The present invention can regulate coal output to carry out secondary coal blending when coal blending nonconformity successively automatically, and coal blending accuracy rate is high, efficiency is high, and degree of automation is high, and productive costs is low.
Description
Technical field
The present invention relates to mixed coal blending process, specifically refer to a kind of accurately coal blending process.
Background technology
Along with becoming increasingly prosperous of Chemical Industry, various gasification furnace is widely used at home, such as Shell Coal Gasification stove, space flight stove, GE coal slurry gasifier, and the east stove etc. of China Petrochemical Industry.The comformability of partial gasification stove to coal is wider, can gasify and comprise multiple coals of brown coal, bituminous coal, coal stone and petroleum coke, but in actual production process, still there is the ash fusion point of more problem, particularly coal in the gasification of single coal, the problem such as viscosity-temperature characteristics, lime-ash flowing control of lime-ash affects huge on coal gasification course.Therefore, by Optimized Coal Blending technology, widen kinds of coals for gasification, reducing operating cost will be that coal chemical industry makes great efforts one of direction of improving.
In the last few years, the mixed technology of coal obtained increasing development and utilized, and from initial extensive style, on a small scale coal mixing operation, had formed the accurate coal blending work pattern of extensive, modernization, automation so far.Mixed blending method mainly contains stockyard coal blending method, coal receiving bunker coal blending method and coal store coal blending method at present.
Wherein coal blending pattern in stockyard to be divided into again point heap point to follow the example of getting coal method with layering coal piling, section.Coal blending modular system in stockyard arranges comparatively simple, invests less, but regulates relatively " extensive style " due to exerting oneself of general reclaimer device, and cause mixed coal ratio to ensure, accuracy rate is lower, and this kind of method degree of automation is lower, and management difficulty is larger.If do not have strict operation requirements and record during coal piling operation, or during the operation of upper coal, mistake feeding all can cause coal blending mistake, affects the operation of follow-up system.Coal receiving bunker coal blending pattern is divided into again the automobile coal receiving bunker coal blending method and utilize the large class of stockyard seam coal receiving bunker coal blending method two of utilizing.And the upper coal belt conveyer of coal store coal blending pattern to be the raw coal sent here by coal yard enter after the feed system, flow process such as coal store metering coal supply system, producing coal system etc. of coal store Coal Blending System coal handling system completes coal blending, for it, coal store can accomplish that coal storage and coal blending take into account as the feature of coal saving mode.But the coal storage of single seat coal store is owing to limiting to by its version, unsuitable excessive, and it is also restricted to store number of days.
Blending method of the prior art all exists after coal blending mistake can not on-line tuning, and the problem such as degree of automation is low, coal blending accuracy rate is high not.
Summary of the invention
Technical matters to be solved by this invention provides a kind of coal blending accuracy rate high for the present situation of prior art and can the accurate coal blending process of on-line tuning coal blending, with the requirement of adaptive coal gasifying process well.
The present invention solves the problems of the technologies described above adopted technical scheme: this accurate coal blending process, is characterized in that comprising the steps:
Be stored in the raw coal of the different cultivars in each one-level coal store, outlet via each described one-level coal store enters each self-corresponding first quantitative coal supply equipment respectively, deliver on the first load-transfer device of the first belt conveyor after the metering of the first quantitative coal supply equipment, transmitted by the first load-transfer device;
Each raw coal to fall on the first load-transfer device after in transport process first through the weighing of each first belt conveyer scale, often mixing a coal all has the first corresponding belt conveyer scale to weigh, and weighing result is delivered in control module by these first belt conveyer scales; Control module judges the data received;
When control module judges that raw coal proportion is qualified, control module controls each described first quantitative coal supply equipment and maintains former mode of operation, close the 3rd port of triple valve simultaneously, open the second port of triple valve, the raw coal that first tape transport comes drops on the second load-transfer device of the second belt conveyor via the second port of triple valve, delivers to device for coal by the second load-transfer device;
When control module judges raw coal proportion nonconformity, control module closes the second port of triple valve, open the 3rd port of triple valve, the raw coal sent here of first load-transfer device drops on the 3rd load-transfer device of the 3rd belt conveyor via the 3rd port of triple valve, delivers to secondary coal store buffer memory by the 3rd load-transfer device; Control module changes the discharging metering of the first quantitative coal supply equipment simultaneously according to judged result, and opens the second quantitative coal supply equipment, makes the material in secondary coal store through the second quantitative coal supply equipment metering discharging; Each raw coal proportion requirement of satisfied device for coal after each described first quantitative coal supply equipment discharging is mixed with the discharging of the described second quantitative coal supply equipment;
Raw coal qualified for proportioning is delivered to and is used device for coal by the second load-transfer device.
Preferably, can say that raw coal qualified for proportioning is delivered to crushing and screening mechanism by described second load-transfer device, raw coal is delivered to and is used device for coal after crushing and screening.Described crushing and screening mechanism also can be arranged on the upstream of technological process.
In order to determine the proportioning situation of each raw coal further, can in the upstream of described triple valve, the downstream position of end first belt conveyer scale is also provided with the first Sampling Machine, first Sampling Machine is carried out sampling to the raw coal after mixture and is detected from the first load-transfer device, and testing result is delivered in control module;
Second Sampling Machine is arranged between the discharging point of crushing and screening mechanism and described triple valve second port, and the second Sampling Machine detects from the second load-transfer device sampling, and testing result is delivered to control module.
Compared with prior art, the present invention has following advantage:
1, degree of automation is high, does not need too much artificial participation, reduces cost of labor, improve the work efficiency of coal blending.
2, possess " through type " of the direct feeding of qualified coal blending and the dual-use function of nonconformity coal blending " secondary coal blending ", a coal blending, through namely falling into the second load-transfer device by triple valve after the assay was approved, uses " through type " function to be directly supplied to device for coal; After a coal blending, through the coal of disqualified upon inspection, enter secondary coal store and use that " secondary coal blending " function until reach criterion of acceptability, then is supplied to and uses device for coal.
3, quantitatively coal supply equipment has coal-supplying amount accurately and adjustable, activation coal charge, not the advantage such as chute blockage.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention schematic flow sheet.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
The present embodiment illustrates this accurate coal blending process for the mixture of two kinds of raw coal.As shown in Figure 1, the Coal Blending System that this technique uses comprises:
Two one-level coal stores 2A, 2B, be respectively used to accept raw coal 1A and raw coal 1B.If three kinds of raw coal mixed routes, then need to arrange three one-level coal stores; By that analogy.Coal store in the present embodiment adopts silo, also can select the coal store of other structure as required with actual conditions.
The outlet that the outlet of two one-level coal stores connects two the first quantitative coal supply equipment 31 of quantitative coal supply equipment 31, first respectively connects the first load-transfer device 91 of the first belt conveyor successively along feed direction, for feeding on the first load-transfer device 91.Quantitative coal supply equipment in the present embodiment adopts activation feeder, and the metering of activation feeder is more accurate; Other quantitative coal supply equipment can certainly be selected as required.
In the present embodiment, the first belt conveyor is provided with two covers, a set of work, another set of for subsequent use, uses for overhauling at first set or replacing when safeguarding.
The blanking position first load-transfer device 91 of the first belt conveyor corresponding to each one-level coal store is provided with two the first belt conveyer scales, 41,41 ', two the first belt conveyer scales 41,41 ' and sets gradually along feed direction.The number of the first belt conveyer scale and the quantity of one-level coal store suitable, each first belt conveyer scale correspond to each first quantitative coal supply equipment set gradually on the first load-transfer device.
The downstream position of last the first belt conveyer scale is also provided with the first Sampling Machine 51 for sampling detection from the first load-transfer device 91.
First port of the tail end connecting tee valve 6 of the first load-transfer device, the second port of this triple valve 6 connects the second load-transfer device 92 of the second belt conveyor, and the 3rd port of triple valve 6 connects the 3rd load-transfer device 93 of the 3rd belt conveyor.
In the present embodiment, the first belt conveyor is provided with two covers, a set of work, another set of for subsequent use, uses for overhauling at first set or replacing when safeguarding.Other structure another set of first belt conveyor and this first belt conveyor connected or arrange and above-mentioned first belt conveyor identical.
The tail end of the second load-transfer device 92 connects crushing and screening mechanism 8; The tail end of the 3rd load-transfer device 93 connects the entrance of secondary coal store 7.
In the present embodiment, secondary coal store 7 is also provided with two, and one of them can be used for the raw coal compound storing correct proportioning, uses the material in this secondary coal store 7 to substitute when one-level coal store discharging nonconformity.Certainly, secondary coal store can also arrange more as required, can be respectively used to cushion the inferior-quality raw coal of proportioning and/or store coordinate correct raw coal.
The discharging opening of the quantitative coal supply equipment of outlet connection the second quantitative coal supply equipment 32, second of secondary coal store 7 connects the second load-transfer device 92; The second Sampling Machine 52 for sampling from the second load-transfer device is also provided with between blanking position on the second load-transfer device in crushing and screening mechanism and triple valve second port.
The outlet second load-transfer device 92 corresponding to each second quantitative coal supply equipment is provided with the second belt conveyer scale 42 successively.
The tail end of the second load-transfer device 92 connects crushing and screening mechanism 8.
In the present embodiment, the second belt conveyor and the 3rd belt conveyor are also provided with two covers, a set of work, another set of for subsequent use.
Be stored in the raw coal of the different cultivars in each one-level coal store, outlet via each described one-level coal store enters each self-corresponding first quantitative coal supply equipment respectively, deliver on the first load-transfer device of the first belt conveyor after the metering of the first quantitative coal supply equipment, transmitted by the first load-transfer device;
Each raw coal to fall on the first load-transfer device after in transport process first through the weighing of each first belt conveyer scale, often mixing a coal all has the first corresponding belt conveyer scale to weigh, and weighing result is delivered in control module by these first belt conveyer scales; Control module judges the data received.Mixture raw coal in first Sampling Machine subtend triple valve course of conveying samples, and detect the proportioning of raw coal each in sample, testing result is delivered in control module.
When control module judges qualified, control module controls each described first quantitative coal supply equipment and maintains former mode of operation, close the 3rd port of triple valve simultaneously, open the second port of triple valve, the raw coal that first tape transport comes drops on the second load-transfer device of the second belt conveyor via the second port of triple valve, delivers to device for coal by the second load-transfer device;
When control module judges raw coal proportion nonconformity, control module closes the second port of triple valve, open the 3rd port of triple valve, the raw coal sent here of first load-transfer device drops on the 3rd load-transfer device of the 3rd belt conveyor via the 3rd port of triple valve, delivers to secondary coal store buffer memory by the 3rd load-transfer device; Control module changes the discharging metering of the first quantitative coal supply equipment simultaneously according to judged result, and opens the second quantitative coal supply equipment, makes the material in secondary coal store through the second quantitative coal supply equipment metering discharging; Each raw coal proportion requirement of satisfied device for coal after each described first quantitative coal supply equipment discharging is mixed with the discharging of the described second quantitative coal supply equipment.
The second Sampling Machine between the discharging point being arranged on crushing and screening mechanism and triple valve second port detects the raw coal sampling after mixture on the second load-transfer device, and testing result is delivered to control module, for control module contrast judgement.
Raw coal qualified for proportioning is delivered to crushing and screening mechanism by the second load-transfer device, and raw coal is delivered to and used device for coal (not shown) after crushing and screening.
Claims (3)
1. an accurate coal blending process, comprises the steps:
Be stored in the raw coal of the different cultivars in each one-level coal store, outlet via each described one-level coal store enters each self-corresponding first quantitative coal supply equipment respectively, deliver on the first load-transfer device of the first belt conveyor after the metering of the first quantitative coal supply equipment, transmitted by the first load-transfer device;
Each raw coal to fall on the first load-transfer device after in transport process first through the weighing of each first belt conveyer scale, often mixing a coal all has the first corresponding belt conveyer scale to weigh, and weighing result is delivered in control module by these first belt conveyer scales;
It is characterized in that: described control module judges the data received;
When control module judges qualified, control module controls each described first quantitative coal supply equipment and maintains former mode of operation, close the 3rd port of triple valve simultaneously, open the second port of triple valve, the raw coal that first tape transport comes drops on the second load-transfer device of the second belt conveyor via the second port of triple valve, delivers to device for coal by the second load-transfer device;
When control module judges raw coal proportion nonconformity, control module closes the second port of triple valve, open the 3rd port of triple valve, the raw coal sent here of first load-transfer device drops on the 3rd load-transfer device of the 3rd belt conveyor via the 3rd port of triple valve, delivers to secondary coal store buffer memory by the 3rd load-transfer device; Control module changes the discharging metering of the first quantitative coal supply equipment simultaneously according to judged result, and opens the second quantitative coal supply equipment, makes the material in secondary coal store through the second quantitative coal supply equipment metering discharging; Each raw coal proportion requirement of satisfied device for coal after each described first quantitative coal supply equipment discharging is mixed with the discharging of the described second quantitative coal supply equipment;
Raw coal qualified for proportioning is delivered to and is used device for coal by the second load-transfer device.
2. accurate coal blending process according to claim 1, it is characterized in that raw coal qualified for proportioning is delivered to crushing and screening mechanism by described second load-transfer device, raw coal is delivered to and is used device for coal after crushing and screening.
3. accurate coal blending process according to claim 2, it is characterized in that the upstream of described triple valve, the downstream position of end first belt conveyer scale is also provided with the first Sampling Machine, first Sampling Machine is carried out sampling to the raw coal after mixture and is detected from the first load-transfer device, and testing result is delivered in control module;
Second Sampling Machine is arranged between the discharging point of crushing and screening mechanism and described triple valve second port, and the second Sampling Machine detects from the second load-transfer device sampling, and testing result is delivered to control module.
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104773528A (en) * | 2015-01-22 | 2015-07-15 | 浙江华电电站设备有限公司 | Accurate coal blending system of silo and coal blending method of accurate coal blending system |
| CN110003931B (en) * | 2019-05-10 | 2020-11-24 | 北京沄汇智能科技有限公司 | Coal blending control system and method |
| CN111536544B (en) * | 2020-05-06 | 2022-03-08 | 华能国际电力股份有限公司丹东电厂 | Thermal power plant fire coal blending conveying method |
| CN113816072B (en) * | 2021-08-30 | 2023-05-05 | 中石化宁波工程有限公司 | Unloading device of air cushion conveyor |
| CN114345532B (en) * | 2022-01-06 | 2023-06-16 | 宝武集团鄂城钢铁有限公司 | Coal making system and process |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4409096A (en) * | 1980-07-15 | 1983-10-11 | Coal Industry (Patents) Ltd. | Control systems for material treatment plant |
| CN201485081U (en) * | 2009-08-26 | 2010-05-26 | 中交第三航务工程勘察设计院有限公司 | Storage, blending and discharge integrated coal blending system |
| CN201565282U (en) * | 2009-09-07 | 2010-09-01 | 中港印能源集团有限公司 | Coal blending system and feeder applied in coal blending system |
| CN103566815A (en) * | 2012-08-09 | 2014-02-12 | 北京华德创业环保设备有限公司 | High-efficiency precise coal distributing system |
| CN203444298U (en) * | 2013-07-25 | 2014-02-19 | 平顶山中选自控系统有限公司 | Automatic coal blending control system |
| CN103599727A (en) * | 2013-11-15 | 2014-02-26 | 华电电力科学研究院 | Device and method for blending target coal ash |
| EP2711412A1 (en) * | 2012-09-20 | 2014-03-26 | Castle Light Corporation | Coal treatment process for a coal-fired power plant |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA76930B (en) * | 1976-01-02 | 1977-01-26 | Stamicarbon | Process for separating mixures of particles |
-
2014
- 2014-05-07 CN CN201410191123.8A patent/CN103964145B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4409096A (en) * | 1980-07-15 | 1983-10-11 | Coal Industry (Patents) Ltd. | Control systems for material treatment plant |
| CN201485081U (en) * | 2009-08-26 | 2010-05-26 | 中交第三航务工程勘察设计院有限公司 | Storage, blending and discharge integrated coal blending system |
| CN201565282U (en) * | 2009-09-07 | 2010-09-01 | 中港印能源集团有限公司 | Coal blending system and feeder applied in coal blending system |
| CN103566815A (en) * | 2012-08-09 | 2014-02-12 | 北京华德创业环保设备有限公司 | High-efficiency precise coal distributing system |
| EP2711412A1 (en) * | 2012-09-20 | 2014-03-26 | Castle Light Corporation | Coal treatment process for a coal-fired power plant |
| CN203444298U (en) * | 2013-07-25 | 2014-02-19 | 平顶山中选自控系统有限公司 | Automatic coal blending control system |
| CN103599727A (en) * | 2013-11-15 | 2014-02-26 | 华电电力科学研究院 | Device and method for blending target coal ash |
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