CN203076072U - Dense-medium separation system and automatic medium density control system thereof - Google Patents
Dense-medium separation system and automatic medium density control system thereof Download PDFInfo
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- CN203076072U CN203076072U CN 201320046665 CN201320046665U CN203076072U CN 203076072 U CN203076072 U CN 203076072U CN 201320046665 CN201320046665 CN 201320046665 CN 201320046665 U CN201320046665 U CN 201320046665U CN 203076072 U CN203076072 U CN 203076072U
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Abstract
The utility model discloses an automatic medium density control system which comprises a first ash content measuring device used for measuring ash content of raw coal, a product prediction controller used for receiving, analyzing and processing data of the first ash content measuring device to obtain a density control parameter, a density controller used for receiving the density control parameter and controlling the medium density according to the density control parameter, and a clear water supplying device and a dense medium supplying device which are controlled by the density controller. The automatic medium density control system can control the density of a dense medium in real time automatically, liberate labor force, improve working efficiency, and avoid influence of human factors on the coal dressing effect. The utility model further discloses a dense-medium separation system provided with the automatic medium density control system.
Description
Technical field
The utility model relates to the dense-medium separation technical field, particularly a kind of dense-medium separation system and Media density automatic control system thereof.
Background technology
The dense-medium separation technology medium coal preparation technology of weighing again is a mineral matter sorting technology important in the present coal separation industry, adopts heavy-fluid or heavy suspension to make a kind of gravity concentration method of media implementation sorting.According to the used medium difference, can be divided into heavy-fluid coal separation and heavy suspension coal separation two big classes.Heavy-fluid is meant the aqueous solution and the highdensity organic solution of some inorganic salts.Heavy suspension is to be mixed with by medium solid (high density solia particle) and water to have the two-phase fluid that specific density is outstanding shape.When raw coal feed be full of this suspension separator after, less than the coal of density of suspending liquid come-up, sink greater than the coal of density of suspending liquid, realize density separation.The heavy-fluid coal separation is big because of corrosive medium, and it is difficult to reclaim, the cost height, and industrial failing used.At present, extensive use is the heavy suspension coal separation in the production, the common name heavy media coal separation.
The heavy media coal separation technology is an important sorting technology in the present coal separation industry, because of its good separation effect is widely used.The density of dense media has determined the quality of separating effect, and in order to guarantee separating effect, the density that is used for the dense media of coal separation must be stablized control, thus can be in the dense-medium separation process, and control in real time is very necessary with the density of the dense media that raw coal mixes.Yet use in the coal preparation plant of dense-medium separation in the whole nation at present, generally adopts density of medium that Artificial Control adds, and be specially: Media density is too high, manually adds clear water and dilutes; Otherwise, then manually add high-density medium.By artificial method control medium density, on the one hand, working strength of workers is bigger, and operating efficiency is low; On the other hand, density of medium is influenced by human factor, and this has just caused, and difference appears in the coal separation effect under same cleaning unit.
Therefore, how to provide a kind of Media density automatic control system, the counterweight density of medium is controlled automatically in real time, thereby the liberation labour increases work efficiency, simultaneously, avoiding the influence of human factor to the coal separation effect, is the technical problem that those skilled in the art need solution badly.
The utility model content
In view of this, main purpose of the present utility model is to provide a kind of Media density automatic control system, and the counterweight density of medium is controlled automatically in real time, thereby the liberation labour increases work efficiency, and simultaneously, avoids the influence of human factor to the coal separation effect,
For achieving the above object, the utility model provides a kind of Media density automatic control system, comprises;
Be used to measure first ash measurement device of coal ash;
Receive the data of described first ash measurement device and it is carried out analyzing and processing, draw the product predictive controller of density control parameter;
Receive the described density control parameter and the density controller of control medium density in view of the above;
Be subjected to the clear water feedway and the high-density medium feedway of described density controller control.
Preferably, in the above-mentioned Media density automatic control system, also comprise second ash measurement device that is used to measure cleans ash and measurement data is fed back to described product predictive controller.
Preferably, in the above-mentioned Media density automatic control system, described first ash measurement device and second ash measurement device are online ash measurer.
With respect to prior art, technique effect of the present utility model is:
The Media density automatic control system that the utility model provides comprises first ash measurement device that is used to measure coal ash, receives the data of first ash measurement device and it is carried out analyzing and processing, draws the product predictive controller of density control parameter; Receive the density control parameter and the density controller of control medium density in view of the above, be subjected to the clear water feedway and the high-density medium feedway of this density controller control.
The utility model is measured the ash content of raw coal and cleaned coal by first ash measurement device, then the data that record are sent to the product predictive controller, carry out analyzing and processing, draw density control parameter, then this density control parameter is passed to density controller, density controller is controlled density of medium according to this density control parameter, is specially, add clear water by the clear water feedway and reduce Media density, or improve Media density by the high-density medium feedway.
In sum, Media density automatic control system provided by the utility model, the counterweight density of medium is controlled automatically in real time, the liberation labour increases work efficiency, simultaneously, automatically the control precision is higher, avoids the influence of human factor to the coal separation effect.
The utility model also provides a kind of dense-medium separation system, comprise the raw coal conveying device, the medium bucket of dielectric fluid, the mixing tank that is connected with described raw coal conveying device and medium bucket are housed, the separator that is connected with described mixing tank, and the cleaned coal conveying device that is connected with described separator, also comprise the automatic control system of Media density in the described medium bucket of control, described automatic control system is above-mentioned Media density automatic control system.Because above-mentioned Media density automatic control system has above-mentioned technique effect, the dense-medium separation system with above-mentioned Media density automatic control system also should possess the corresponding techniques effect.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to the accompanying drawing that provides.
The structural representation of the Media density automatic control system that Fig. 1 provides for the utility model.
Among the last figure, the corresponding relation between Reference numeral and the component names is:
11 first ash measurement devices; 12 second ash measurement devices; 2 product predictive controllers; 3 density controllers; 4 raw coal conveying devices; 5 medium buckets; 6 mixing tanks; 7 separators; 8 cleaned coal conveying devices.
The specific embodiment
Core of the present utility model is to provide a kind of Media density automatic control system, and the counterweight density of medium is controlled automatically in real time, the liberation labour, increase work efficiency, simultaneously, it is higher to control precision automatically, avoids the influence of human factor to the coal separation effect.
In order to make those skilled in the art understand the technical solution of the utility model better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.Obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
At first, briefly introduce the course of work of dense-medium separation:
With raw coal (mainly comprising coal and spoil) with all be delivered to mixing tank 6 through density adjusted qualified medium liquid and mix; Mixed mixture together enters and carries out sorting in the separator 7, floats less than the cleaned coal of Media density, and the spoil precipitation greater than Media density realizes separating.
Introduce the influence of ash content below to calorific value of coal:
Ash content in the coal is high more, and caloric value is low more.The spoil dust burdening is far longer than coal, and therefore, the spoil that is mixed with in the coal is many more, and the dust burdening that records is high more, and it is as product, and caloric value is low more.
Reach a conclusion in conjunction with the above-mentioned dense-medium separation course of work:
Media density is big more, and its buoyancy is big more, and some impurity between coal and spoil are also floated up, and enter final products, causes the cleans ash height that sub-elects, and caloric value is low;
Media density is little, and its buoyancy is less, has only coal can float, heavy spoil precipitation, and the ash content of coal that sub-elects is low, the caloric value height.
Please refer to Fig. 1, the structural representation of the Media density automatic control system that Fig. 1 provides for the utility model.
As shown in Figure 1, the Media density automatic control system that the utility model embodiment provides, comprise first ash measurement device 11 that is used to measure coal ash, receive the data of first ash measurement device 11 and it is carried out analyzing and processing, draw the product predictive controller 2 of density control parameter; Receive the density control parameter and the density controller 3 of control medium density in view of the above, be subjected to the clear water feedway and the high-density medium feedway of these density controller 3 controls.
The utility model is measured the ash content of raw coal by first ash measurement device 11, then the data that record are sent to product predictive controller 2, carry out analyzing and processing, be specially caloric value according to customer demand draw the ash content of the cleaned coal that should sub-elect, ash content according to raw coal calculates required density of medium, product predictive controller 2 output densities control parameter, then this density control parameter is passed to density controller 3, density controller 3 is controlled the density of medium in the medium bucket 5 according to this density control parameter, be specially, add clear water by the clear water feedway and reduce Media density, or add high-density medium raising Media density by the high-density medium feedway.After the Media density in the medium bucket 5 is qualified, and in together being conveyed into mixing tank 6, mixes in raw coal, mixture enters separator 7 and carries out sorting subsequently, thereby sub-elects cleaned coal.
In sum, Media density automatic control system provided by the utility model, the counterweight density of medium is controlled automatically in real time, the liberation labour increases work efficiency, simultaneously, automatically the control precision is higher, avoids the influence of human factor to the coal separation effect.
In order further to optimize technique scheme, in the utility model, also comprise second ash measurement device 12 that is used to measure cleans ash, this second ash measurement device 12 feeds back to product predictive controller 2 with the data of measuring.Measure the ash content of cleaned coal by second ash measurement device 12, feed back to product predictive controller 2, if the caloric value of cleaned coal is lower than customer requirement, its dust burdening height then is described, promptly Media density is big, causes sorting not smart, need to reduce density of medium, and calculate concrete numerical value, and product predictive controller 2 is passed to density controller 3 with this density control parameter, and density controller 3 control clear water feedwaies add the clear water diluent media of specified amount in medium; Otherwise in like manner.By adding this feedback regulation, further improved control accuracy of the present utility model.
Particularly, above-mentioned first ash measurement device 11 and second ash measurement device 12 are online ash measurer.Online ash measurer is the equipment of the quick mensuration ash content of coal that occurs in recent years, and it has advantages such as the degree of accuracy is higher, automaticity is strong.
The invention also discloses a kind of dense-medium separation system, comprise raw coal conveying device 4, the medium bucket 5 of dielectric fluid, the mixing tank 6 that is connected with described raw coal conveying device 4 and medium bucket 5 are housed, the separator 7 that is connected with described mixing tank 6, and the cleaned coal conveying device 8 that is connected with described separator 7, also comprise the automatic control system of Media density in the described medium bucket 5 of control, its automatic control system is above-mentioned Media density automatic control system.Because above-mentioned Media density automatic control system has above-mentioned technique effect, the dense-medium separation system with above-mentioned Media density automatic control system also should possess the corresponding techniques effect, does not repeat them here.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (4)
1. a Media density automatic control system is characterized in that, comprises;
Be used to measure first ash measurement device (11) of coal ash;
Receive the data of described first ash measurement device (11) and it is carried out analyzing and processing, draw the product predictive controller (2) of density control parameter;
Receive described density control parameter and the density controller of control medium density (3) in view of the above;
Be subjected to the clear water feedway and the high-density medium feedway of described density controller (3) control.
2. Media density automatic control system according to claim 1 is characterized in that, also comprises second ash measurement device (12) that is used to measure cleans ash and measurement data is fed back to described product predictive controller (2).
3. Media density automatic control system according to claim 2 is characterized in that, described first ash measurement device (11) and second ash measurement device (12) are online ash measurer.
4. dense-medium separation system, comprise raw coal conveying device (4), the medium bucket (5) of dielectric fluid, the mixing tank (6) that is connected with described raw coal conveying device (4) and medium bucket (5) are housed, the separator (7) that is connected with described mixing tank (6), and the cleaned coal conveying device (8) that is connected with described separator (7), it is characterized in that, also comprise the automatic control system of the interior Media density of control described medium bucket (5), described automatic control system is each described Media density automatic control system of claim 1-3.
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| CN 201320046665 CN203076072U (en) | 2013-01-28 | 2013-01-28 | Dense-medium separation system and automatic medium density control system thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370555A (en) * | 2016-10-10 | 2017-02-01 | 山西汾西矿业（集团）有限责任公司 | Densitometer device for coal dressing system |
| CN108188040A (en) * | 2018-03-08 | 2018-06-22 | 杨宝祥 | A kind of mineral liquid phase process separation system and its method for separating |
| CN109772579A (en) * | 2018-12-29 | 2019-05-21 | 中国神华能源股份有限公司 | Hm coal preparation plant adds Jie's system automatically |
| CN110605178A (en) * | 2019-09-23 | 2019-12-24 | 中国矿业大学 | Intelligent control system and method for heavy medium sorting process |
| CN111604163A (en) * | 2020-04-17 | 2020-09-01 | 天津德通电气股份有限公司 | High-precision dense medium intelligent control system and method for coking coal preparation plant |
| CN113210119A (en) * | 2021-04-13 | 2021-08-06 | 华电电力科学研究院有限公司 | Intelligent dense medium sorting system and working method thereof |
| CN114653467A (en) * | 2022-03-09 | 2022-06-24 | 山西天地王坡煤业有限公司 | Medium adding method and device in heavy medium sorting process |
| CN114768987A (en) * | 2022-03-14 | 2022-07-22 | 国能智深控制技术有限公司 | DCS-based heavy medium ash content control method and system for coal preparation plant |
| CN115138472A (en) * | 2022-06-14 | 2022-10-04 | 国能智深控制技术有限公司 | Sorting suspension density setting method and system |
-
2013
- 2013-01-28 CN CN 201320046665 patent/CN203076072U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370555A (en) * | 2016-10-10 | 2017-02-01 | 山西汾西矿业（集团）有限责任公司 | Densitometer device for coal dressing system |
| CN108188040B (en) * | 2018-03-08 | 2024-04-19 | 杨宝祥 | Mineral liquid method sorting system and sorting method thereof |
| CN108188040A (en) * | 2018-03-08 | 2018-06-22 | 杨宝祥 | A kind of mineral liquid phase process separation system and its method for separating |
| CN109772579A (en) * | 2018-12-29 | 2019-05-21 | 中国神华能源股份有限公司 | Hm coal preparation plant adds Jie's system automatically |
| CN110605178A (en) * | 2019-09-23 | 2019-12-24 | 中国矿业大学 | Intelligent control system and method for heavy medium sorting process |
| WO2021057349A1 (en) * | 2019-09-23 | 2021-04-01 | 中国矿业大学 | Intelligent control system and method for heavy medium separation process |
| CN111604163A (en) * | 2020-04-17 | 2020-09-01 | 天津德通电气股份有限公司 | High-precision dense medium intelligent control system and method for coking coal preparation plant |
| CN113210119A (en) * | 2021-04-13 | 2021-08-06 | 华电电力科学研究院有限公司 | Intelligent dense medium sorting system and working method thereof |
| CN114653467A (en) * | 2022-03-09 | 2022-06-24 | 山西天地王坡煤业有限公司 | Medium adding method and device in heavy medium sorting process |
| CN114768987A (en) * | 2022-03-14 | 2022-07-22 | 国能智深控制技术有限公司 | DCS-based heavy medium ash content control method and system for coal preparation plant |
| CN114768987B (en) * | 2022-03-14 | 2024-02-02 | 国能智深控制技术有限公司 | DCS-based coal preparation plant dense medium ash content control method and system |
| CN115138472A (en) * | 2022-06-14 | 2022-10-04 | 国能智深控制技术有限公司 | Sorting suspension density setting method and system |
| CN115138472B (en) * | 2022-06-14 | 2023-06-20 | 国能智深控制技术有限公司 | Method and system for giving density of sorting suspension |
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Granted publication date: 20130724 Termination date: 20180128 |