CN113751191A - Accurate quantitative continuous coal slime sorter tailings discharging mechanism - Google Patents
Accurate quantitative continuous coal slime sorter tailings discharging mechanism Download PDFInfo
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- CN113751191A CN113751191A CN202111176665.4A CN202111176665A CN113751191A CN 113751191 A CN113751191 A CN 113751191A CN 202111176665 A CN202111176665 A CN 202111176665A CN 113751191 A CN113751191 A CN 113751191A
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- wear
- coal slime
- discharging
- discharging mechanism
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- 238000007599 discharging Methods 0.000 title claims abstract description 53
- 239000003245 coal Substances 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims description 17
- 238000011010 flushing procedure Methods 0.000 claims description 15
- 239000011241 protective layer Substances 0.000 claims description 6
- 238000000926 separation method Methods 0.000 abstract description 10
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 7
- 239000011707 mineral Substances 0.000 abstract description 7
- 238000010790 dilution Methods 0.000 abstract description 3
- 239000012895 dilution Substances 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 13
- 230000001105 regulatory effect Effects 0.000 description 11
- 239000002245 particle Substances 0.000 description 8
- 230000001174 ascending effect Effects 0.000 description 6
- 239000010419 fine particle Substances 0.000 description 5
- 230000001502 supplementing effect Effects 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 3
- 239000011362 coarse particle Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 229910052755 nonmetal Inorganic materials 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000004069 differentiation Effects 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B11/00—Feed or discharge devices integral with washing or wet-separating equipment
Abstract
The invention discloses a precise, quantitative and continuous tailing discharging mechanism of a coal slime separator, and relates to the technical field of mineral separation. The device comprises a wear-resistant bin and a control box, wherein the control box is used for forming electrical connection and programming design for other structures of the device, the wear-resistant bin is used for finishing built-in guiding, feeding is carried out at the top end of the wear-resistant bin, and discharging pipes and discharging adjusting valves are arranged on two sides of a cavity structure in the wear-resistant bin. The invention is convenient to form continuous and quantitative discharging through design, ensures the bed layer of the coal slime separator to be stable and controllable, improves the separation efficiency, avoids the discharging blockage phenomenon through the forced reciprocating motion of the wear-resistant piston through the design, thoroughly solves the problem of lower separation precision caused by the upward and downward fluctuation of the bed layer caused by the discharging of the bell-shaped valve through the design, has simple mechanical system and electrical system through the design, has lower purchase, operation and maintenance cost, does not need dilution water through the design, reduces the water circulation amount in the system, and reduces the load of concentration and filter pressing operation.
Description
Technical Field
The invention relates to the technical field of mineral separation, in particular to a precise, quantitative and continuous tailing discharging mechanism of a coal slime separator.
Background
In the wet gravity separation process of coal, sand and fine particles of non-metal or metal minerals such as iron, tin, lead, zinc and the like, the density and the granularity of the mineral particles are different, and the sedimentation velocity in the same fluid is also different. Coarse particles of high density have a greater settling velocity and fine particles of low density have a lesser settling velocity. If an ascending fluid velocity is provided that is intermediate between the settling velocity of the high density coarse particles and the settling velocity of the low density fine particles, the high density coarse particles will settle in the ascending fluid and the low density fine particles will float up, thereby effecting separation of the multi-component mineral by density and size.
If the mineral particle size is controlled to be equal or in a narrow size fraction range, the settling velocity of the particles will depend mainly on the density of the particles, and the particles with different densities can be sorted according to the density under the interference of a certain rising water velocity. The disturbed bed separator is a fine particle mineral separation device (commonly abbreviated as TBS, TCS, TSS and the like) which utilizes ascending water flow to generate disturbed sedimentation in a tank and slurry particles are suspended in a disturbed bed layer to form autogenous medium.
The feeding of the interference bed separator is fed from the upper end of the tank body, the ascending water flow is fed from the bottom of the tank body at a certain pressure and flow rate, the feeding and the ascending water flow meet in the middle of the tank body to generate an interference settling bed layer, particles suspended on the interference settling bed layer form a self-generated separation medium, the separated particles perform interference settling movement and are separated in the self-generated medium in the tank body of the separator, light materials float upwards to an overflow port to be discharged, and high-density materials settle at the lower part of the tank body and are discharged through a discharge mechanism at the bottom. Whether the underflow discharge mechanism can realize continuous and stable automatic discharge according to the density control signal in the interference bed layer is a necessary condition for whether the interference bed separator can realize stable operation and accurate separation.
The underflow discharge mechanism commonly used at present mainly has two types, and the structural characteristics are briefly described as follows:
1. vertical lifting type conical or bell valve discharging mechanism driven by electric or pneumatic actuating mechanism
The mechanism consists of an electric or pneumatic driving device positioned at the upper part of the groove body, a positioner, a long driving rod inside the groove body, a conical or bell-shaped valve core at the tail part of the driving rod, a valve seat at the bottom of the groove body and the like.
The discharging mechanism receives a 4-20mA analog quantity signal output by the bed densimeter when working, when the bed density signal is higher than a set value and needs discharging, the valve core is pushed by the actuating mechanism to leave the valve seat to adjust the opening of the discharging valve, and high-density underflow automatically discharges under the action of gravity.
The disadvantages of this kind of discharge mechanism are: when the material is discharged in the gravity action from flowing, the discharge speed is slow when the valve opening is small, even the discharge blockage occurs, and the discharge speed is increased instantaneously when the valve opening is large, so that the bed layer pulsates up and down, the return of the tailing layer occurs, secondary sedimentation is needed, and the separation precision is further influenced in severe cases. In the actual operation process of the equipment, the conical valve is often in an intermittent opening or closing state, so that stable and continuous automatic discharge is difficult to realize, and the negative influence on the product quality and the recovery efficiency is large.
2. Frequency conversion control automatic discharging pump with diluting device
The discharging mechanism comprises a pressure-stabilizing water supplementing tank, an electric regulating valve, a variable-frequency discharging pump, a discharging mixing tank, a discharging steady flow tank, a water supplementing flowmeter, a discharging flowmeter, a control box and the like.
The discharging mechanism receives a 4-20mA analog quantity signal output by a bed density meter when working, and when the bed density signal is higher than a set value and needs discharging, the rotating speed of a discharging pump is adjusted through a frequency converter to realize discharging quantity control. In order to avoid the problem of blockage or flow fluctuation in the pumping process of high-density materials, the mechanism is provided with a pressure-stabilizing automatic water supplementing, diluting and mixing system, an automatic regulating valve and a flowmeter, and the actual discharge amount of the underflow is indirectly calculated by a complex algorithm by acquiring the flow of water supplementing and discharging and the density signals of the water supplementing and discharging.
This mechanism realizes initiatively unloading through frequency conversion discharge pump, and it has solved the jam or the intermittent type of blow off valve when the low flow is arranged the material problem, still has following problem:
1. the investment and maintenance costs are high due to the complex system structure;
2. the underflow dilution causes a large amount of circulating water in the system.
Disclosure of Invention
The invention aims to provide a tailing discharging mechanism of a coal slime sorting machine, which is accurate, quantitative and continuous and solves the existing problems: the stability, continuity and accuracy of the discharging mechanism are insufficient.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a continuous coal slime sorter tailings discharging mechanism of accurate ration, includes wear-resisting feed bin and control box, the control box is used for forming electric connection and the programming design to the all the other structures of device, wear-resisting feed bin is used for accomplishing built-in guide.
Preferably, the inboard of wear-resisting feed bin is provided with interior cavity structures, the top of wear-resisting feed bin is provided with the pan feeding pipe, the both sides of interior cavity structures all are equipped with the discharging pipe and arrange material governing valve, it sets up in the discharging pipe outside to arrange material governing valve.
Preferably, the inner cavity structure is provided with a wear-resistant piston, one end of the wear-resistant piston is connected with a power executing mechanism through a connecting rod, PID (proportion integration differentiation) regulation is formed among the power executing mechanism, a set value of bed layer density discharge and a discharge regulating valve, and the tailing discharge amount is regulated and determined through the opening degree of the discharge regulating valve.
Preferably, one side of wear-resisting feed bin pan feeding end is provided with automatic flushing device, the output and the power actuating mechanism of control box, row material governing valve, automatic flushing device carry out electric connection.
Preferably, the inner cavity structure is cylindrical in shape.
Preferably, the inner side of the inner cavity structure is provided with a wear-resistant protective layer, and the wear-resistant protective layer is made of alumina wear-resistant ceramic or other types of non-metal or metal wear-resistant protective layers, so that the smooth wall of the discharging inner cavity of the material is ensured, and the wear-resistant performance is good.
Preferably, the outer side of the automatic flushing device is provided with a pressure clear water pipeline or a self-circulation water pipeline, and the inner side of the automatic flushing device is provided with an anti-siphon device, a matched manual valve and an automatic valve.
Compared with the prior art, the invention has the beneficial effects that:
1. by the design, continuous and quantitative discharging is conveniently formed, the stability and controllability of a bed layer are ensured, and the sorting efficiency is improved;
2. through the design, the wear-resistant piston is forced to reciprocate, so that the phenomenon of blockage of discharged materials is avoided;
3. by the design, the phenomenon of returning of a tailing material layer when the bell-shaped valve is opened greatly is thoroughly solved;
4. by the design, the mechanical system and the electrical system are simple, and the purchasing, operating and maintaining costs are lower;
5. through the design, dilution water is not needed for discharging, the water circulation quantity in the system is reduced, and the load of concentration and filter pressing operation is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of the whole of the present invention.
In the figure: 1. a wear-resistant bin; 2. a wear resistant piston; 3. a power actuator; 4. a discharge valve; 5. an automatic flushing device; 6. and a control box.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1, the tailing discharging mechanism of the coal slime separator comprises a wear-resistant bin 1 and a control box 6, wherein the control box 6 is used for forming electrical connection and programming design for other structures of the device, and the wear-resistant bin 1 is used for finishing built-in guiding.
An inner cavity structure is arranged on the inner side of the wear-resistant bin 1, a feeding pipe is arranged at the top end of the wear-resistant bin 1, a discharging pipe and a discharging adjusting valve 4 are arranged on two sides of the inner cavity structure, and the discharging adjusting valve 4 is arranged on the outer side of the discharging pipe;
the inner side of the inner cavity structure is provided with a wear-resistant piston 2, one end of the wear-resistant piston 2 is connected with a power executing mechanism 3 through a connecting rod, PID (proportion integration differentiation) regulation is formed among the power executing mechanism 3, a set value of bed layer density discharge and a discharge regulating valve 4, and the tailing discharge amount is regulated and determined through the opening of the discharge regulating valve 4.
An automatic flushing device 5 is arranged on one side of the top end of the wear-resistant bin 1, and the output end of the control box 6 is electrically connected with the power executing mechanism 3, the discharging adjusting valve 4 and the automatic flushing device 5;
the inner cavity structure is cylindrical;
the inner side of the inner cavity structure is provided with a wear-resistant protective layer made of alumina wear-resistant ceramic or other types of nonmetal or metal wear-resistant protective layers, so that the discharging inner cavity wall of the material is smooth and has good wear resistance;
when the density signal of the bed layer is higher than a set value and discharging is needed, the power executing mechanism 3 pushes the piston to reciprocate in the storage bin, and the unidirectional discharging regulating valve 4 is opened;
when the density signal of the bed layer is lower than the set value in the control box 6 and discharge is not needed, the wear-resistant piston 2 controlled by the power executing mechanism 3 stops moving in the inner cavity structure at the wear-resistant bin 1, and the discharge adjusting valve 4 is closed at the moment;
the discharge amount is adjusted and determined by controlling the opening of the discharge regulating valve 4 through the control box 6, the opening of the discharge regulating valve 4 is set to be 50% in the conventional design, and when the bed density is in an ascending trend, the opening of the discharge valve 4 is increased; when the density of the bed layer is in a descending trend, the opening degree of a discharge valve 4 is reduced;
the wear-resistant piston 2 is made of a wear-resistant ceramic integral piece or a wear-resistant stainless steel casting, and is connected with a connecting rod of the power executing mechanism 3 through a stainless steel piece in a mechanical riveting or bolt mode;
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. The utility model provides a continuous coal slime sorter tailings discharging mechanism of accurate ration which characterized in that: including wear-resisting feed bin (1) and control box (6), control box (6) are used for forming the electric connection and the programming design to the other structures of device, wear-resisting feed bin (1) is used for accomplishing built-in guide.
2. The precise quantitative continuous tailing discharging mechanism of the coal slime separating machine according to claim 1, characterized in that: the inboard of wear-resisting feed bin (1) is provided with interior cavity structure, the top of wear-resisting feed bin (1) is provided with the pan feeding pipe, the both sides of interior cavity structure all are equipped with the discharging pipe and arrange material adjusting valve (4), it sets up in the discharging pipe outside to arrange material adjusting valve (4).
3. The precise quantitative continuous tailing discharging mechanism of the coal slime separating machine according to claim 2, characterized in that: the inside of interior cavity structure is provided with wear-resisting piston (2), the one end of wear-resisting piston (2) is connected with power actuating mechanism (3) through the connecting rod, power actuating mechanism (3), row material adjusting valve (4), bed density row's setting value form PID between the three and adjust, arrange material adjusting valve (4) and be used for adjusting and confirming the tailing discharge volume through the aperture of self.
4. The precise quantitative continuous tailing discharging mechanism of the coal slime separating machine according to claim 3, characterized in that: one side on wear-resisting feed bin (1) top is provided with automatic flushing device (5), automatic flushing device (5) are used for clearing up the feed bin, prevent to shut down back coal slime siltation feed bin, the output and power actuating mechanism (3), row's material governing valve (4) and automatic flushing device (5) of control box (6) are electric connection.
5. The precise quantitative continuous tailing discharging mechanism of the coal slime separating machine according to claim 4, characterized in that: the inner cavity structure is cylindrical in shape.
6. The tailings discharging mechanism of the coal slime separating machine as claimed in claim 5, wherein the tailings discharging mechanism comprises: and a wear-resistant protective layer is arranged on the inner side of the inner cavity structure.
7. The tailings discharging mechanism of the coal slime separating machine as claimed in claim 6, wherein the tailings discharging mechanism comprises: the automatic flushing device (5) is provided with a pressure clear water pipeline or a self-circulation water pipeline on the outer side, and the automatic flushing device (5) is provided with an anti-siphon device, a matched manual valve and an automatic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111176665.4A CN113751191A (en) | 2021-10-09 | 2021-10-09 | Accurate quantitative continuous coal slime sorter tailings discharging mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111176665.4A CN113751191A (en) | 2021-10-09 | 2021-10-09 | Accurate quantitative continuous coal slime sorter tailings discharging mechanism |
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| CN113751191A true CN113751191A (en) | 2021-12-07 |
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| CN202111176665.4A Pending CN113751191A (en) | 2021-10-09 | 2021-10-09 | Accurate quantitative continuous coal slime sorter tailings discharging mechanism |
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|---|---|---|---|---|
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| CN202371271U (en) * | 2011-11-30 | 2012-08-08 | 湖南中工矿业工程技术有限公司 | Special tailing regulating valve for floatation column |
| CN104923382A (en) * | 2015-07-13 | 2015-09-23 | 天津美腾科技有限公司 | Tailing quantified and continuous discharging method for coarse slime separation machine |
| CN107618885A (en) * | 2017-10-23 | 2018-01-23 | 中国石油化工股份有限公司中原油田分公司石油工程技术研究院 | The conveying device and carrying method of granular material |
| CN108953089A (en) * | 2018-08-02 | 2018-12-07 | 日昌升集团有限公司 | A kind of high-pressure slurry drug delivery pump system and method |
| CN208213407U (en) * | 2018-04-04 | 2018-12-11 | 中国矿业大学 | A kind of separation of coarse slime device with stabilization fluid environment |
| CN211937361U (en) * | 2020-02-17 | 2020-11-17 | 山东恩迈特能源设备有限公司 | Coarse coal slime sorting unit with stabilize fluidization environment |
| CN214132163U (en) * | 2020-12-14 | 2021-09-07 | 山东先卓机电科技有限公司 | Continuous quantitative discharge device of interference bed separator |
| CN214269422U (en) * | 2020-12-10 | 2021-09-24 | 河南瑞贝卡发制品股份有限公司 | Scraper type powder metering device |
-
2021
- 2021-10-09 CN CN202111176665.4A patent/CN113751191A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2412720Y (en) * | 2000-04-07 | 2001-01-03 | 郭祖茂 | Cement fibre hollow slab continuous shaping machine |
| CN202371271U (en) * | 2011-11-30 | 2012-08-08 | 湖南中工矿业工程技术有限公司 | Special tailing regulating valve for floatation column |
| CN104923382A (en) * | 2015-07-13 | 2015-09-23 | 天津美腾科技有限公司 | Tailing quantified and continuous discharging method for coarse slime separation machine |
| CN107618885A (en) * | 2017-10-23 | 2018-01-23 | 中国石油化工股份有限公司中原油田分公司石油工程技术研究院 | The conveying device and carrying method of granular material |
| CN208213407U (en) * | 2018-04-04 | 2018-12-11 | 中国矿业大学 | A kind of separation of coarse slime device with stabilization fluid environment |
| CN108953089A (en) * | 2018-08-02 | 2018-12-07 | 日昌升集团有限公司 | A kind of high-pressure slurry drug delivery pump system and method |
| CN211937361U (en) * | 2020-02-17 | 2020-11-17 | 山东恩迈特能源设备有限公司 | Coarse coal slime sorting unit with stabilize fluidization environment |
| CN214269422U (en) * | 2020-12-10 | 2021-09-24 | 河南瑞贝卡发制品股份有限公司 | Scraper type powder metering device |
| CN214132163U (en) * | 2020-12-14 | 2021-09-07 | 山东先卓机电科技有限公司 | Continuous quantitative discharge device of interference bed separator |
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Application publication date: 20211207 |
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