CN106215471B - A kind of modified ore dressing raker thickener - Google Patents
A kind of modified ore dressing raker thickener Download PDFInfo
- Publication number
- CN106215471B CN106215471B CN201610804832.8A CN201610804832A CN106215471B CN 106215471 B CN106215471 B CN 106215471B CN 201610804832 A CN201610804832 A CN 201610804832A CN 106215471 B CN106215471 B CN 106215471B
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- fixed
- overflow launder
- center
- swing mechanism
- runing rest
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/18—Construction of the scrapers or the driving mechanisms for settling tanks
- B01D21/22—Safety mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2221/00—Applications of separation devices
- B01D2221/04—Separation devices for treating liquids from earth drilling, mining
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Underground Or Underwater Handling Of Building Materials (AREA)
Abstract
The invention discloses a kind of modified ore dressing raker thickeners, including central swing mechanism, crane span structure, the center swing mechanism is fixed at concentration basin center, the inner end of the crane span structure couples with central swing mechanism, the outer end of the crane span structure is provided with chain sprocket driving device, overflow launder is provided on the inside of concentration basin outer race track, the center swing mechanism includes fixing bracket, runing rest, plane bearing, central turnplate, current-collector, slip ring, and the center swing mechanism center is equipped with into pipe road；Fixing bracket is fixed on the cement pillar at concentration basin center, and runing rest is arranged on support bracket fastened surface, and plane bearing is set between the bottom of the runing rest and the fixing bracket upper surface；Central turnplate is arranged on runing rest top, and current-collector is fixed at central turnplate top, and slip ring is fixed at on pipe road, mutual wiping connection between current-collector and slip ring；Overflow launder automatic cleaning apparatus is provided on overflow launder.
Description
Technical field
The present invention relates to large-scale technical field of solid-liquid separation equipment, and in particular to a kind of mining raker thickener.
Background technology
Concentration is the important link in coal separation, and the processing capacity of thickener restricts the main throughput per hour washed.If concentration
Machine breaks down, it is necessary to which after completion to be repaired, thickener is waited to restore normal, master washes and could normally drive；It will not shadow in the short time
Production is rung, if the time is longer, necessarily affects the normal production of workshop.
Raker thickener is a kind of common large-scale ore dressing wash coaling equipment of coal mine, primary structure by central swing mechanism and
Constant-current stabilizer is fixed on pond center by pond center cement pillar；One section of crane span structure is fixed on peripheral driver, another
End couples with central swing mechanism；Peripheral drive system is by a totally enclosed hydraulic motor decelerator, a set of sprocket wheel transmission
Device drives the steel wheel with sprocket coaxiality, and two steel wheels hold up crane span structure and do circumference walking along track by gear frame.
The critical component of central swing mechanism is bus ring, to provide conductance power to rotation crane span structure.Due to slip ring
Nearer from pond face, the flow of water is larger during thickener supplied materials, and pond face spray is splashed on slip ring working face in order to prevent, causes slip ring short
Road is specially provided with iron case outside bus ring and carries out waterproof sealing.But during long-term operation, due to iron case side
There are gap, leakproofness to be difficult to ensure that for edge, is easy to cause slip ring and gets rusty, reduce the electric conductivity of slip ring, seriously affects dense
The normal operation of contracting machine；In addition, entering on charging basket since slip ring is directly mounted to center, there is the iron case of closing in outside again, to daily
Maintenance work brings big inconvenience.
In addition, due in thickener the bubbles volume of black water, black water internal circulating load it is larger, cause superficial part distal end foam cannot
It trickles and deposits in time, form dead zone, the overflow for seriously affecting the section is overflowed, and black water effect of settling is deteriorated.Need herein through
Ordinary person's work is cleared up, and such as thickener overflow dead zone area is stepped up not in time for cleaning, and work overflow area is caused to reduce, and is overflow
Flowing concentration and foam increases, and has an adverse effect to the water quality of two sections of thickeners.
Invention content
The present invention is directed to above-mentioned technical problem, it is proposed that a kind of improved ore dressing raker thickener effectively increases concentration
The service life and working efficiency of machine, and it is convenient for installation and maintenance, production maintenance cost and human cost is greatly saved.
The present invention solves above-mentioned technical problem using following technical scheme：A kind of modified ore dressing raker thickener, including
Central swing mechanism, crane span structure, the center swing mechanism are fixed at concentration basin center, the inner end of the crane span structure with it is described in
Swing mechanism connection is entreated, the outer end of the crane span structure is provided with chain sprocket driving device, and the chain sprocket driving device holds up the crane span structure
Circumference walking is carried out along concentration basin outer race track, overflow launder is provided on the inside of the concentration basin outer race track；The center revolution
Mechanism includes fixing bracket, runing rest, plane bearing, central turnplate, current-collector, slip ring, the center swing mechanism center
It is arranged with into pipe road；The fixing bracket is fixed on the cement pillar at concentration basin center, the runing rest setting
In the support bracket fastened surface, the plane bearing is set to the bottom of the runing rest and the fixing bracket upper table
Between face, formation between the runing rest and the fixing bracket is made to be slidably connected；The central turnplate is arranged on the rotation
Turn frame upper, the current-collector is fixed at the central turnplate top, and the slip ring is fixed at described into pipe
On road, mutual wiping connection between the current-collector and the slip ring；Overflow launder is provided on the overflow launder and clears up dress automatically
It puts.
As the specific optimization of wherein slip ring structure, the slip ring is spliced by two sections of semicircle trolley groups, described
Trolley group includes the trolley of several parallel arrangeds, and insulation dottle pin, the cunning are provided between adjacent two trolleys
The wiping face for touching line vertically downward, is connect with the contact point wiping of the current-collector.
Optimization, it is described into being provided with shaped cover, the wiping on pipe road in order to protect slip ring from external interference
Line, which circularizes, to be fixed on the shield bottom plate, and the shield outer rim is provided with annular retaining ring vertically downward, the ring
Shape baffle ring integrally surrounds the trolley, and the height of the annular retaining ring is slightly larger than the height of the trolley.
Optimization, the overflow launder automatic cleaning apparatus includes fixed strut and scraper plate, the fixed strut are vertically arranged
Right over the overflow launder, the top of the fixed strut is fixed on the chain sprocket driving device, and the scraper plate fixation is set
It puts in the bottom end of the fixed strut；The scraper plate be U-type groove steel member, the front notch of the scraper plate set forward and with institute
The slot bottom for stating overflow launder is mutually perpendicular to, and the side notch of the scraper plate is vertical with the side wall of the overflow launder respectively, the scraper plate
The gap of 5-10cm ranges is provided between the overflow launder inner wall.
In addition, in the case where not influencing to concentrate tank main body civil engineering intensity, if being offered on the side wall of the overflow launder
Dry spout hole mutually straggly, so as to meet the requirement of wash water overflow, ensure that the normal flotation of flotation device, reduces cleaned coal
Loss, reduces the processing pressure of thickener, further ensures the normal production of workshop.
The advantage of the invention is that：By the transformation to existing raker thickener, make thickener operation more steady, reduce
Accident rate, ensure that the normal flotation of follow-up flotation device, reduces cleaned coal loss, is conducive to normally produce, improves work
Efficiency；The workload of daily maintenance is alleviated, saves the equipment fortune of a large amount of maintenance of equipment, mounting cost and follow-up workshop section
Row wear and tear expense has good economic value.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the structure diagram of overflow launder part in Fig. 1；
Fig. 3 is the overall structure diagram of the central swing mechanism of the present invention；
Fig. 4 is the structure diagram of bus ring part in Fig. 3.
Specific embodiment
A kind of GZN-30 types raker thickener is transformed in the present embodiment, and the technical parameter of the type raker thickener is such as
Shown in lower, diameter：30M；The kind of drive：Peripheral rails are wheeled；Rotating speed：It is every to turn 15-25min；Put forward the mode of climbing：Hydraulic cylinder substep carries
Rake；Matched power：Walking 7.5kw carries rake 3kw, carries rake pressure 20MPa, driving pressure 6.3MPa, motor general power 8.5kw；It should
Thickener is responsible for flotation tailing, screen-bowl sedimentation centrifuge overflow, the processing of the dilute Jie's tailing water of middle cash.
As shown in Figure 1, a kind of modified ore dressing raker thickener, including central swing mechanism, crane span structure 1, the center is returned
Rotation mechanism is fixed at 2 center of concentration basin, and the inner end of the crane span structure 1 couples with the central swing mechanism, the crane span structure 1
Outer end is provided with chain sprocket driving device 3, and the chain sprocket driving device 3 holds up the crane span structure 1 to be justified along 2 outer race track of concentration basin
Week walking, 2 outer race track of the concentration basin inside are provided with overflow launder 4；The Ti Pa mechanisms of thickener share one with walking mechanism
A combination hydraulic pumping plant and electric-control system, equipped with electrical first device such as PLC program controller, intermediate relay in power control cabinet
Part.When precipitation material increases, hydraulic pressure signal is converted into electric signal, PLC program by walking oil circuit oil pressure raising, pressure sensor
Controller sends out instruction, puies forward rake motor action, and cleaning shoe rises, and steel wheel stops walking
Wherein, as shown in figure 3, the center swing mechanism includes fixing bracket 5, runing rest 6, plane bearing 7, center
Turntable 8, current-collector 9, slip ring 10, the center swing mechanism center are equipped with into pipe road 11；The fixation of fixing bracket 5 is set
It puts on the cement pillar 12 at 2 center of concentration basin, the runing rest 6 is arranged on the surface of the fixing bracket 5, described flat
Spherical bearing 7 is set between 5 upper surface of bottom and the fixing bracket of the runing rest 6, makes the runing rest 6 and institute
It states to be formed between fixing bracket 5 and be slidably connected；The central turnplate 8 is arranged on 6 top of runing rest, the current-collector 9
It is fixed at 8 top of central turnplate, the slip ring 10 is fixed at described on pipe road 11, the current-collector 9
Mutual wiping is connect between the slip ring 10；Overflow launder automatic cleaning apparatus is provided on the overflow launder 4.
Wherein, as shown in figure 4, the slip ring 10 is spliced by two sections of semicircle trolley groups, the trolley group packet
The trolley 101 of 5 row's parallel arrangeds is included, insulation dottle pin 102, the wiping are provided between adjacent two trolleys 101
The wiping face of line 101 vertically downward, is connect with the contact point wiping of the current-collector 9.
It is described into being provided with shaped cover 13, the wiping on pipe road 11 in order to protect slip ring 10 from external interference
Line 101, which circularizes, to be fixed on 13 bottom plate of shield, and 13 outer rim of shield is provided with annular retaining ring vertically downward
14, the whole encirclement of the trolley 101, the height of the annular retaining ring 14 are slightly larger than the trolley by the annular retaining ring 14
101 height.
As shown in Fig. 2, the overflow launder automatic cleaning apparatus includes fixed strut 15 and scraper plate 16, the fixed strut 15
It is vertically installed in right over the overflow launder 4, the top of the fixed strut 15 is fixed on the chain sprocket driving device 3, institute
State the bottom end that scraper plate 16 is fixed at the fixed strut 15；The scraper plate be U-type groove steel member, the front slot of the scraper plate
Mouth sets forward and is mutually perpendicular to the slot bottom of the overflow launder 4, the side notch of the scraper plate 16 respectively with the overflow launder 4
Side wall it is vertical, the gap of 5-10cm or so is provided between 4 inner wall of the scraper plate 16 and the overflow launder.
In addition, in the case where not influencing to concentrate tank main body civil engineering intensity, if being offered on the side wall of the overflow launder
Dry spout hole 41 mutually straggly, so as to meet the requirement of wash water overflow, ensure that the normal flotation of flotation device, reduces essence
Coal losses reduces the processing pressure of thickener, further ensures the normal production of workshop.
Thickener operates steadily after transformation, reduces accident rate, alleviates the workload of daily maintenance, improves work effect
Rate.
The safe handling of thickener is ensure that by above transformation simultaneously, ensure that normal flotation, the reduction of flotation device
Cleaned coal loss improves the concentration flushing effect of one section of thickener, reduces the processing pressure of one section, two sections thickener, into
One step ensure that the normal production of workshop.Meanwhile scene is not required to manually be cleared up after transformation, alleviates worker's labour work
Amount.
Preresearch estimates is carried out to economic value：
1. save maintenance of equipment, mounting cost：Bus ring, constant-current stabilizer, rotation slewing equipment equivalent life extend one times
More than, it is contemplated that save repair, 150,000 yuan of mounting cost.
2. main building production throughput per hour improves about 50t/h, daily to be calculated by 1.2 ten thousand tons, daily to save 1.5 hours,
900t raw coal is about produced, by 0.68 yuan of electrical energy consumption per tonne of raw coal 12.32KWH/T, electricity price calculating, every year by 300 days production calculations, can be saved
About 2,260,000 yuan of the electricity charge.
3. in addition to economic value, improved benefit is more embodied in the saving of labo r resources.During with one day 21 hourly worker of people
Cleaning.Labo r resources expenditure is reduced after transformation every year：The people of 1 × 365 times × 2 people × 1 hour=730 hour.
The foregoing is merely the preferred embodiments of the invention, are not intended to limit the invention creation, all at this
All any modification, equivalent and improvement made within the spirit and principle of innovation and creation etc., should be included in the invention
Protection domain within.
Claims (3)
1. a kind of modified ore dressing raker thickener, including central swing mechanism, crane span structure, the center swing mechanism fixed setting
At concentration basin center, the inner end of the crane span structure couples with the central swing mechanism, and the outer end of the crane span structure is provided with sprocket wheel drive
Dynamic device, the chain sprocket driving device hold up the crane span structure and carry out circumference walking along concentration basin outer race track, outside the concentration basin
Overflow launder is provided on the inside of circle track, which is characterized in that the center swing mechanism includes fixing bracket, runing rest, plane
Bearing, central turnplate, current-collector, slip ring, the center swing mechanism center are equipped with into pipe road；The fixing bracket is fixed
It is arranged on the cement pillar at concentration basin center, the runing rest is arranged on the support bracket fastened surface, the plane
Bearing is set between the bottom of the runing rest and the fixing bracket upper surface, makes the runing rest and the fixation
It is formed and is slidably connected between stent；The central turnplate is arranged on the runing rest top, and the current-collector is fixed at
The central turnplate top, the slip ring are fixed at described on pipe road, phase between the current-collector and the slip ring
Mutual wiping connection；Overflow launder automatic cleaning apparatus is provided on the overflow launder；
The slip ring is spliced by two sections of semicircle trolley groups, and the trolley group includes the wiping of several parallel arrangeds
Line, is provided with insulation dottle pin between adjacent two trolleys, the wiping face of the trolley vertically downward, with the collection
The contact point wiping connection of electric appliance；
It is described into shaped cover is provided on pipe road, the trolley, which circularizes, to be fixed on the shield bottom plate, institute
It states shield outer rim and is provided with annular retaining ring vertically downward, the annular retaining ring integrally surrounds the trolley, the annular
The height of baffle ring is slightly larger than the height of the trolley.
2. modified ore dressing raker thickener as described in claim 1, which is characterized in that the overflow launder automatic cleaning apparatus
Including fixed strut and scraper plate, the fixed strut is vertically installed in right over the overflow launder, the top of the fixed strut
It is fixed on the chain sprocket driving device, the scraper plate is fixed at the bottom end of the fixed strut；The scraper plate is U-type groove
Steel member, the front notch of the scraper plate set forward and are mutually perpendicular to the slot bottom of the overflow launder, the side of the scraper plate
Notch is vertical with the side wall of the overflow launder respectively, and 5-10cm ranges are provided between the scraper plate and the overflow launder inner wall
Gap.
3. modified ore dressing raker thickener as claimed in claim 2, which is characterized in that opened up on the side wall of the overflow launder
There are several spout holes mutually straggly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610804832.8A CN106215471B (en) | 2016-09-06 | 2016-09-06 | A kind of modified ore dressing raker thickener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610804832.8A CN106215471B (en) | 2016-09-06 | 2016-09-06 | A kind of modified ore dressing raker thickener |
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| Publication Number | Publication Date |
|---|---|
| CN106215471A CN106215471A (en) | 2016-12-14 |
| CN106215471B true CN106215471B (en) | 2018-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610804832.8A Active CN106215471B (en) | 2016-09-06 | 2016-09-06 | A kind of modified ore dressing raker thickener |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108933372B (en) * | 2018-07-27 | 2024-01-16 | 中国工程物理研究院总体工程研究所 | Geotechnical centrifuge hanging basket power supply device |
| CN114768322A (en) * | 2022-05-24 | 2022-07-22 | 抚顺市明尧石油机械有限公司 | Tank bottom mud scraper adopting transverse transmission shaft as intermediate transmission device and tank body |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4247400A (en) * | 1979-04-16 | 1981-01-27 | Envirotech Corporation | Rotary rake structure for a settling tank |
| CN2899896Y (en) * | 2006-03-15 | 2007-05-16 | 沈阳矿山机械（集团）有限责任公司 | Automatic lift rake thickener |
| CN203389378U (en) * | 2013-08-02 | 2014-01-15 | 大连玉源环境工程有限公司 | Efficient sludge-discharging radial-flow sedimentation basin |
| CN206008122U (en) * | 2016-09-06 | 2017-03-15 | 淮南矿业(集团)有限责任公司 | A kind of modified model ore dressing raker thickener |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AUPS119202A0 (en) * | 2002-03-19 | 2002-04-18 | Outokumpu Oyj | Pulp stabilisation apparatus for a thickener |
-
2016
- 2016-09-06 CN CN201610804832.8A patent/CN106215471B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4247400A (en) * | 1979-04-16 | 1981-01-27 | Envirotech Corporation | Rotary rake structure for a settling tank |
| CN2899896Y (en) * | 2006-03-15 | 2007-05-16 | 沈阳矿山机械（集团）有限责任公司 | Automatic lift rake thickener |
| CN203389378U (en) * | 2013-08-02 | 2014-01-15 | 大连玉源环境工程有限公司 | Efficient sludge-discharging radial-flow sedimentation basin |
| CN206008122U (en) * | 2016-09-06 | 2017-03-15 | 淮南矿业(集团)有限责任公司 | A kind of modified model ore dressing raker thickener |
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| Publication number | Publication date |
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| CN106215471A (en) | 2016-12-14 |
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