CN108435405A - A kind of automatic float-sink test device of coal - Google Patents
A kind of automatic float-sink test device of coal Download PDFInfo
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- CN108435405A CN108435405A CN201810271883.8A CN201810271883A CN108435405A CN 108435405 A CN108435405 A CN 108435405A CN 201810271883 A CN201810271883 A CN 201810271883A CN 108435405 A CN108435405 A CN 108435405A
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- coal
- bucket
- groove body
- external groove
- jie
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- 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
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
- B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
- B03B5/36—Devices therefor, other than using centrifugal force
- B03B5/40—Devices therefor, other than using centrifugal force of trough type
-
- 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
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
- B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
- B03B5/44—Application of particular media therefor
-
- 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
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
- B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
- B03B5/44—Application of particular media therefor
- B03B5/447—Application of particular media therefor recovery of heavy media
-
- 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
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
- B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
- B03B5/36—Devices therefor, other than using centrifugal force
- B03B5/40—Devices therefor, other than using centrifugal force of trough type
- B03B2005/405—Devices therefor, other than using centrifugal force of trough type using horizontal currents
Abstract
The invention discloses a kind of automatic float-sink test devices of coal, including desliming screen, storing feeder, mechanism of drifting along automatically, de-mediated mechanism and cleaned coal collecting mechanism, desliming screen and storing feeder are arranged at automatic mechanism side of drifting along, de-mediated mechanism and cleaned coal collecting mechanism are arranged at the automatic mechanism other side of drifting along, and storing feeder includes belt material-feeding machine, storage vat and batcher；Automatic mechanism of drifting along includes sorting groove and dense media feed system, sorting groove includes external groove body, intranet bucket and spoil bucket, mechanism for opening/closing is installed on intranet bucket, external groove body upper end is equipped with downflow weir, gate valve is equipped at external groove body outlet at bottom, spoil bucket is arranged below gate valve, and dense media feed system conveys magnetic iron ore dense media into external groove body by pipeline；The import of de-mediated mechanism connects with downflow weir, and cleaned coal collecting mechanism is arranged in the cleaned coal exit of de-mediated mechanism.The present invention can realize that automatic fishing is drifted along, and coal treating capacity is big, high degree of automation.
Description
Technical field
It drifts along technical field the invention belongs to coal, is specifically related to a kind of automatic float-sink test device of coal.
Background technology
Coal drifts along it will be seen that the density of feed coal forms (the number Mass Distribution of each density level product), to jigging, again
The washing process such as medium most Instructing manufacture acts on.For effective Instructing manufacture, raw coal property is determined, it is general to require monthly at least
The beginning of the month, the float-sink test of the end of month more than twice are carried out to entering to wash raw coal, needs to increase if meeting coal quality and fluctuating larger situation
Add test number (TN).In order to make test data more closing to reality situation, coal amount is tested every time and requires coal sample in 200kg or more.
Currently, being manual operation when national most of coal preparation plants' progress float-sink tests.Due to coal during float-sink test
Sample is more, step is complicated, needs manually repeatedly coal, stirs, fishes for, extracting strainer bucket etc., labor intensive, and the time compared with
It is long, seriously constrain working efficiency.Carrying out float-sink test every time at least needs 2~3 people operation simultaneously, primary experiment at least to need
Continuous work 5h or more could will enter to wash raw coal and be separated according to density level, if count in drying, weigh, sample, chemically examining
Between, then expending the time can be longer.With the continuous expansion of coal preparation plant's production capacity, depending merely on artificial progress float-sink test, there are many disadvantages
End, if test result is inaccurate when sampling less, does not have representativeness, serious labor intensive and time again when sampling more, generally
The personnel tested did not carried out the experiment knowledge learning of profession mostly, therefore inevitably influenced during the test
The accuracy of experiment.In common washing appliance, it is larger that Separator of heavy medium shallow slot enters to wash raw coal size, only manually uses fishing spoon
It is more difficult to fish for bulk float, and when smalls is drifted along, it is slowed down under heavy-fluid since granularity is thinner, when extracting screen tube, only
Extraction screen tube is gone to will also result in serious hand labor load by testing crew.In addition to this, the heavy-fluid of float-sink test is carried out
(zinc chloride) has strong corrosive, and during fishing for, extracting screen tube, transfer coal sample, easy splashing causes testing crew
Personal injury.
Thus, in order to avoid or reduce the above problem, it is necessary to study and develop automatic coal and drift along device.In recent years,
Both at home and abroad in terms of research of drifting along, there are some method, apparatus and related patents in relation to separation of drifting along.
In terms of external scientific research, Univ. of Pittsburgh B.S.Gottfried (1978) once mentioned coal and drifted along cleaning device,
And using the performance of distribution curve characterization, but specific device is not provided.Pittsburgh,U.S.A energy technology center (PETC)
R.P.Killmeyer etc. (1992) has studied -0.5mm particulates of laboratory scale using technology (organic heavy liquid) of drifting along is centrifuged
The washability of No. 8 coals of Wuerzburg.(2013) such as Japanese Okayama Univ. J.Oshitani are based on Density Separation method of drifting along, and are with dry sand
Medium is aggravated, using air auto-monitor continuous sorting upgrading coarse grain iron ore.Univ Melbourne Australia
G.V.Franks etc. (2013) has studied the separation and concentration of coarse grain copper mine using similar approach.
In terms of foreign patent, the method recycling of drifting along of waste plastic, waste paper etc. is focused primarily upon, it is floating not find related coal temporarily
Heavy related patents.One kind is devised in the patent (US3284282A) of U.S. R.H.Immel (1963) applications to drift along recirculated water
Slot from waste paper foamed material for recycling expandable polystyrene.U.S. B.Hartleitner etc. (1999) applies special
Separating adsorbent/the floating material from product mixture of the seperator with the separating tank that drifts along is devised in sharp (US6685830B2)
The device and method of material, the similar dense media shallow slot discharge of float discharge.The patent of the applications such as U.S. B.D.Peacock
(US5255859A) devised in one kind drift along grader for detach with grading plastic material detritus.
In terms of domestic scientific research, 1973, platform Ji Kuang once manufactured experimently into coal washery float-sink test floating device, and for coal
Float-sink test makes moderate progress (single drops to 3min~3.5min by 4min~5min) on the time although drifting along in fishing, drifts along
Zinc chloride consumption drifts along 16.79% higher than artificial fishing.2004, Yanzhou Mining's Qiu Zhao qins described
A kind of quick float-sink test device of coal separation station-service drifts along using magnetized liquid (water adds iron powder under electromagnetic field effect), electromagnet
With DC current power supply (being less than 10A) mode, it can guarantee heavy-fluid density in 1.2g/cm by controlling electric current3~2.0g/cm3Model
In enclosing, the coal sample of 50mm~0.5mm particle size fractions has been successfully separated with the device.2006, Shanghai municipal works design studies were total
Institute Wang Yin etc. describes a kind of double-deck advection sedimentation and the combined novel floating depositing pool of air supporting, and the pond is for handling low turbid, Gao Zao
The raw water being alternately present with high concentrtion.
In terms of domestic patent, the patent of invention (Shen of Yongcheng Coal ＆ Electricity Holding Group Co., Ltd. Ma Zhijie etc. (2012) applications
Please number include heavy-fluid bucket and flotation unit for the coal that designs in the 201210322949.4) device that drifts along, heavy-fluid bucket passes through connection
Pipeline is connected with flotation unit；Its flotation unit is made of outer barrel and the interior bucket with open-work being arranged in outer barrel, outer barrel
Bottom is provided with the woven hose with pipe close；The pump housing is provided in connecting pipe.Though this device saves manpower money to a certain extent
Source reduces labor intensity, but the application of its pipe close is easy aging corrosion and material leakage, and it is naturally de- that gravity is also only limitted in terms of de-mediated
Water, and it is still to be improved in terms of the degree of automation.Patent of invention (the application number of Anhui University of Science and Technology Zhu Jinbo (2012) applications
201220098364.4) to be a kind of continuous machine that drifts along automatically, first coal sample is put into the net bottom bucket in float-sink test bucket, then
The test(ing) medium that each medium is contained to different densities in bucket is pumped into successively in float-sink test bucket, carries out float-sink test, and be arranged
There are netted material scraper, sculping screen and product collector, each density grade product of timely processing.Though this patent saves manpower, consumption
When it is short, but it feeds in medium, is also inadequate in terms of reflux type, and automatic/hand operation could be improved with control aspect.In
Mining industry university of state Sheng discloses one kind at the patent of invention (application No. is 201420020314.3) of equal (2014) application and drags for automatically
Drift along slot, and the both ends on groove body top one side are equipped with holder, and holder supports the rotation axis for the tablet for being connected to be covered with micropore, branch
The other end of frame is connected by axis with motor；When motor rotation, drives tablet to be rotated in the slot that drifts along, float in the slot that drifts along
Coal be carried over pivotal plate, realize that automatic fishing is drifted along.Though this device is simple, easy to operate, its there is a problem of it is certain,
Perforated flat plate effectively all cannot take all lower density coal particles out of the slot that drifts along, and nubbin coal sample directly affects next
Density level drifts along as a result, and since required density fluid of drifting along cannot be replaced automatically, needing manually to replace, realization inventor
It is required to drag for the purpose drifted along automatically also not comprehensively.
Invention content
It is an object of the invention to overcome above-mentioned deficiency in the prior art, a kind of automatic float-sink test dress of coal is provided
It sets, floating experiment is carried out to replace zinc chloride to make heavy-fluid using magnetic iron ore dense media, the density liquid energy for drifting along required is automatically more
It changes, and more can comprehensively realize that automatic fishing is drifted along, easy to operate, high degree of automation big to the treating capacity of coal.
To achieve the above object, the technical solution adopted by the present invention is：A kind of automatic float-sink test device of coal, feature
It is：Including desliming screen, storing feeder, mechanism of drifting along automatically, de-mediated mechanism and cleaned coal collecting mechanism, the desliming screen and
Storing feeder is arranged at the side of the automatic mechanism of drifting along, and the de-mediated mechanism and cleaned coal collecting mechanism are arranged at
The other side of the automatic mechanism of drifting along, the storing feeder includes belt material-feeding machine, storage vat and batcher, the skin
Discharge port with feeder connects with the feed inlet of storage vat, and the discharge outlet of the storing bottom of the barrel is provided with electric flashboard
Valve, the feed inlet of the batcher are located at the lower section of electric brake plate valve, the feed inlet of the belt material-feeding machine and going out for desliming screen
Material mouth connects；The automatic mechanism of drifting along includes sorting groove and dense media feed system, and the sorting groove includes external groove body, interior
Portion's net bucket and spoil bucket, the intranet bucket are arranged in external groove body, and the upper limb of the intranet bucket is less than external groove body
Upper limb is provided with overturning flashboard at the outlet at bottom of the intranet bucket, is equipped on the intranet bucket for driving overturning
The upper end of the mechanism for opening/closing that flashboard opens and closes, the external groove body is provided with downflow weir, is set at the outlet at bottom of the external groove body
It is equipped with gate valve, the spoil bucket is arranged in the lower section of gate valve, and the dense media feed system is defeated into external groove body by pipeline
Send magnetic iron ore dense media；The discharge port of the batcher connects with the feed inlet of intranet bucket, the import of the de-mediated mechanism with
Downflow weir connects, and the cleaned coal collecting mechanism is arranged in the cleaned coal exit of the de-mediated mechanism and for collecting conveying cleaned coal.
A kind of above-mentioned automatic float-sink test device of coal, it is characterised in that：The dense media feed system includes stirring
Bucket, delivery pump, conjunction Jie bucket, conjunction Jie pump, conjunction Jie manages, level stream pipeline and upper up-flow pipeline, the outlet of the agitator pass through pipe
Road connects with the import of delivery pump, and the outlet of the delivery pump is connected by pipeline with the import for closing Jie's bucket, conjunction Jie's bucket
Outlet is connected by pipeline with the import for closing the pump that is situated between, and the outlet for closing the pump that is situated between is connected by pipeline with the one end for closing Jie's pipe, institute
State close Jie's pipe the other end connect with one end of level stream pipeline and upper up-flow pipeline, the other end of the upper up-flow pipeline and
The upper up-flow import of external groove body lower part connects and the magnetic iron ore dense media of upper up-flow pipeline promotes the coal in intranet bucket
Charcoal is loosely layered, and upper up-flow valve is equipped on the upper up-flow pipeline；The other end of the level stream pipeline and external groove body
The level stream import on top connects and the magnetic iron ore dense media of level stream pipeline promotes the float coal after layering to pass through downflow weir
External groove body is discharged, level stream valve is installed on the level stream pipeline, the height of the level stream import is higher than intranet
The upper limb of bucket, Jie's bucket that closes are connected by conjunction Jie's return duct with the lower part of external groove body.
A kind of above-mentioned automatic float-sink test device of coal, it is characterised in that：At the air hose mouth of the external groove body lower part
It is connected with the air hose to promote coal to be further layered for conveying high-pressure wind, air-valve, the air hose are installed on the air hose
Height of the height of mouth higher than the upper up-flow import and the height less than the level stream import.
A kind of above-mentioned automatic float-sink test device of coal, it is characterised in that：The level stream import is located at external groove body
Side, the downflow weir is located at the other side of external groove body, and the level stream import is oppositely arranged with downflow weir, the inside
The feed inlet of net bucket and the level stream import are located at the same side.
A kind of above-mentioned automatic float-sink test device of coal, it is characterised in that：The de-mediated mechanism includes sculping screen, rinses
Head, dilute Jie's bucket and magnetic separator, the sculping screen is obliquely installed and the outlet end of sculping screen is less than the input end of sculping screen, described
The import of sculping screen connects with downflow weir, and the sculping screen closes Jie's section close to one section of downflow weir, and the sculping screen is far from overflowing
Flow weir one section is dilute Jie's section；The flushing head is mounted on above sculping screen and positioned at conjunction Jie's section and dilute Jie's section joint, institute
The dilute Jie outlet for stating dilute Jie's section bottom is connected by pipeline with the import of dilute Jie's bucket, and the outlet of dilute Jie's bucket passes through pipeline and magnetic
The import of machine is selected to connect, the conjunction for closing Jie's section bottom is situated between to export and connect with the import for closing Jie's bucket by pipeline.
A kind of above-mentioned automatic float-sink test device of coal, it is characterised in that：The cleaned coal collecting mechanism includes traction electricity
The quantity of machine, track and cleaned coal Material collecting box for harvesting, the cleaned coal Material collecting box for harvesting is that multiple and multiple cleaned coal Material collecting box for harvesting are respectively provided in orbit,
The traction electric machine is connected with multiple cleaned coal Material collecting box for harvesting by traction rope and multiple cleaned coal Material collecting box for harvesting is driven to be run along track
To collect the cleaned coal of different densities.
A kind of above-mentioned automatic float-sink test device of coal, it is characterised in that：The track is rectilinear orbit or semi-circle rail
Road.
A kind of above-mentioned automatic float-sink test device of coal, it is characterised in that：The inside of the external groove body and close to overflowing
The side on stream weir is equipped with for the float coal in external slot body to be scraped to the scraper mechanism into sculping screen, and the scraper mechanism includes becoming
Frequency motor, shaft and scraper, the output shaft of the variable-frequency motor are fixedly connected with one end of shaft, and the scraper is fixedly mounted on
In shaft, the shaft is located in external slot body and is rotatablely connected with external groove body, and the variable-frequency motor is mounted on external groove body
Lateral wall on.
A kind of above-mentioned automatic float-sink test device of coal, it is characterised in that：The mechanism for opening/closing includes two and sets relatively
The the first flashboard regulating mechanism and the second flashboard regulating mechanism set, the first flashboard regulating mechanism and the second flashboard regulating mechanism
Structure it is identical and include upset motor, leading screw, nut and upset connecting rod, the output shaft of the upset motor and leading screw it is upper
End is fixedly connected, and the nut is set in leading screw and coordinates with threads of lead screw, and the upset connecting rod is hollow-core construction, the leading screw
It being respectively positioned in upset connecting rod with nut, the nut is fixedly connected by connecting rod with the upper inside wall of upset connecting rod, and described
The lower end of the upset connecting rod of one flashboard regulating mechanism and the second flashboard regulating mechanism two rotating sheets with overturning flashboard respectively
Lower part is hinged, and the upper end and the bottom of intranet bucket of the rotating sheet are hinged, including the lower part setting of the upset connecting rod
In portion's net bucket, the upset motor is fixed on by mounting rod on external groove body.
A kind of above-mentioned automatic float-sink test device of coal, it is characterised in that：The sieve diameter of the desliming screen is
0.5mm, the length L of the top major trough body of the external groove body is 700mm, width B is 500mm, height H is 500mm.
Compared with the prior art, the present invention has the following advantages：
1, existing floating experiment makees heavy-fluid using zinc chloride, has strong corrosive, and injury is generated to human body；And this hair
Bright coal automatic floating sink device realizes magnetic iron ore dense media and is tested instead of zinc chloride, oneself can prepare magnetic iron ore dense medium
Matter also can directly utilize the magnetic iron ore dense media of coal preparation plant, experimental result to accomplish the mesh for Site Service closer to scene
's.
2, it is a breakthrough that the present invention replaces heavy-fluid zinc chloride to carry out coal floating experiment using magnetite powder dense media, and
The density of magnetic iron ore dense media can make scene significant according to experiment or needs of production flexible modulation, energy experimental result
Data carry out Instructing manufacture.
3, the present invention is to combine artificial progress float-sink test data at present and automation experimental technique, development corresponding automatic
Change operational administrative measure, improve test accuracy, the automatic of formation drags for the device that drifts along, you can realizes automatic fishing with more comprehensive
It drifts along, coal treating capacity is big, easy to operate, high degree of automation.
4, the present invention can contact the magnetic iron ore at the scene of closely can directly taking using magnetite powder dense media with production scene
Powder dense media carries out quick float-sink test, carries out production inspection to produced on-site, forms fast feedback mechanism；In addition, zinc chloride
Heavy-fluid has strong corrosivity, seriously endangers the physical and mental health of operating personnel, and environmental pollution is larger, magnetite powder dense medium
Matter can prevent the drawbacks of zinc chloride heavy-fluid completely.
5, automatic floating sink device of the present invention can realize that the automation of coal float-sink test carries out, and liberate manpower, improve experiment
Efficiency reduces the human error in experimentation, improves performance accuracy.In addition, reducing what operating personnel contacted with zinc chloride
Chance can effectively prevent operating personnel to be chlorinated the phenomenon that zinc heavy-fluid is corroded, the physical and mental health of effective protection operating personnel.
Below by drawings and examples, the present invention is described in further detail.
Description of the drawings
Fig. 1 is the structural schematic diagram of the embodiment of the present invention 1.
Fig. 2 is the position relationship schematic diagram of scraper mechanism and external groove body in the embodiment of the present invention 1.
Fig. 3 is the structural schematic diagram of the first flashboard regulating mechanism, the second flashboard regulating mechanism in the embodiment of the present invention 1.
Fig. 4 is the structural schematic diagram of cleaned coal collecting mechanism in the embodiment of the present invention 2.
Reference sign:
1-desliming screen；2-belt material-feeding machines；3-storage vats；
4-batchers；5-electric brake plate valves；6-agitators；
7-delivery pumps；8-close Jie's bucket；9-spoil buckets；
10-external groove bodies；11-intranet buckets；12-overturning flashboards；
13-gate valves；14-downflow weirs；15-close the pump that is situated between；
16-close the pipe that is situated between；17-level stream pipelines；17-1-level stream valve；
18-upper up-flow pipelines；18-1-upper up-flow valve；19-air hoses；
19-1-air-valve；20-sculping screens；20-1-conjunction Jie's section；
The dilute Jie's sections of 20-2-；21-dilute Jie's buckets；22-magnetic separators；
23-rinse head；24-traction electric machines；25-tracks；
26-cleaned coal Material collecting box for harvesting；27-connecting rods；28-variable-frequency motors；
29-shafts；30-scrapers；31-scraper mechanisms；
32-upset motors；33-nuts；34-leading screws；
35-upset connecting rods；36-the first flashboard regulating mechanism；37-the second flashboard regulating mechanism；
38-close Jie's return duct.
Specific implementation mode
Embodiment 1
As shown in Figure 1, the present invention a kind of automatic float-sink test device of coal, including desliming screen 1, storing feeder,
Automatic drift along mechanism, de-mediated mechanism and cleaned coal collecting mechanism, the desliming screen 1 and storing feeder are arranged at described automatic
The side for mechanism of drifting along, the de-mediated mechanism and cleaned coal collecting mechanism are arranged at the other side of the automatic mechanism of drifting along, institute
It includes belt material-feeding machine 2, storage vat 3 and batcher 4, the discharge port and storing of the belt material-feeding machine 2 to state storing feeder
The feed inlet of bucket 3 connects, and the discharge outlet of 3 bottom of the storage vat is provided with electric brake plate valve 5, the charging of the batcher 4
Mouth is located at the lower section of electric brake plate valve 5, and the feed inlet of the belt material-feeding machine 2 connects with the discharge port of desliming screen 1；It is described automatic
Mechanism of drifting along includes sorting groove and dense media feed system, and the sorting groove includes external groove body 10, intranet bucket 11 and spoil
Bucket 9, the intranet bucket 11 are arranged in external groove body 10, and the upper limb of the intranet bucket 11 is upper less than external groove body 10
Edge is provided with overturning flashboard 12 at the outlet at bottom of the intranet bucket 11, is equipped on the intranet bucket 11 for driving
The mechanism for opening/closing that flashboard 12 opens and closes is overturn, the upper end of the external groove body 10 is provided with downflow weir 14, the external groove body 10
Gate valve 13 is provided at outlet at bottom, the spoil bucket 9 is arranged in the lower section of gate valve 13, and the dense media feed system passes through pipe
Road conveys magnetic iron ore dense media into external groove body 10；The discharge port of the batcher 4 connects with the feed inlet of intranet bucket 11,
The import of the de-mediated mechanism connects with downflow weir 14, and the cleaned coal collecting mechanism is arranged in the cleaned coal outlet of the de-mediated mechanism
Place and for collect conveying cleaned coal.
As shown in Figure 1, the dense media feed system includes agitator 6, delivery pump 7, conjunction Jie bucket 8, closes the pump 15 that is situated between, closes Jie
The outlet of pipe 16, level stream pipeline 17 and upper up-flow pipeline 18, the agitator 6 is connected by pipeline with the import of delivery pump 7,
The outlet of the delivery pump 7 is connected by pipeline with the import for closing Jie's bucket 8, and the outlet for closing Jie's bucket 8 is situated between by pipeline and conjunction
The import of pump 15 connects, and the outlet of conjunction Jie pump 15 is connected by pipeline with the one end for closing Jie's pipe 16, conjunction Jie pipe 16
The other end connects with one end of level stream pipeline 17 and upper up-flow pipeline 18, the other end and the outside of the upper up-flow pipeline 18
The magnetic iron ore dense media that the upper up-flow import of 10 lower part of groove body connects and upper up-flow pipeline 18 conveys promotes in intranet bucket 11
Coal is loosely layered, and upper up-flow valve 18-1 is equipped on the upper up-flow pipeline 18；The other end of the level stream pipeline 17
Connect with the level stream import on 10 top of external groove body and the magnetic iron ore dense media of the conveying of level stream pipeline 17 promotes after being layered
External groove body 10 is discharged by downflow weir 14 in float coal, and level stream valve 17-1, the water are equipped on the level stream pipeline 17
The height of advection import is higher than the upper limb of intranet bucket 11, and Jie's bucket 8 that closes is by closing Jie's return duct 38 and external groove body 10
Lower part connects.
As shown in Figure 1, being connected with for conveying high-pressure wind at the air hose mouth of 10 lower part of the external groove body to promote coal
The air hose 19 being further layered, air-valve 19-1 is equipped on the air hose 19, and the height of the air hose mouth is higher than the upper up-flow
The height of import and the height for being less than the level stream import.
As shown in Figure 1, the level stream import is located at the side of external groove body 10, the downflow weir 14 is located at external groove body
10 other side, the level stream import are oppositely arranged with downflow weir 14, the feed inlet of the intranet bucket 11 and the level
It flows into mouth and is located at the same side.
As shown in Figure 1, the de-mediated mechanism includes sculping screen 20, rinses head 23, dilute Jie's bucket 21 and magnetic separator 22, it is described
Sculping screen 20 be obliquely installed and the outlet end of sculping screen 20 be less than sculping screen 20 input end, the import of the sculping screen 20 with overflow
Stream weir 14 connects, and the sculping screen 20 is close to one section of downflow weir 14 to close Jie's section 20-1, and the sculping screen 20 is far from downflow weir
One section of 14 is dilute Jie's section 20-2；The flushing head 23 is mounted on 20 top of sculping screen and positioned at conjunction Jie's section 20-1 and dilute Jie's section
Dilute Jie outlet of the joints 20-2, dilute bottoms Jie's section 20-2 is connected by pipeline with the import of dilute Jie's bucket 21, dilute Jie
The outlet of bucket 21 connects by pipeline with the import of magnetic separator 22, the conjunction for closing Jie section 20-1 bottoms be situated between export pass through pipeline and
The import for closing Jie's bucket 8 connects.
Wherein, sculping screen 20 is vibration sculping screen, level stream pipeline 17, upper up-flow pipeline 18, air hose 19 and scraper mechanism
Float coal is expelled on the sculping screen 20 of next link by 31 common cooperations, and the overturning flashboard 12 of 10 bottom of external groove body passes through keying
Mechanism opens and closes, for spoil to be discharged.
As shown in Figure 1, the cleaned coal collecting mechanism includes traction electric machine 24, track 25 and cleaned coal Material collecting box for harvesting 26, the essence
The quantity of coal Material collecting box for harvesting 26 is that multiple and multiple cleaned coal Material collecting box for harvesting 26 are arranged on track 25, and the traction electric machine 24 is by leading
Messenger is connected from multiple cleaned coal Material collecting box for harvesting 26 and drives multiple cleaned coal Material collecting box for harvesting 26 different close to collect along the operation of track 25
The cleaned coal of degree.
24 class of traction electric machine drives multiple cleaned coal Material collecting box for harvesting 26 to walk in track 25 according to discharge density requirement, will be right
The cleaned coal Material collecting box for harvesting 26 of density is answered to be moved to the outlet end splicing of sculping screen 20.
In the present embodiment, as shown in Figure 1, the track 25 is rectilinear orbit.
As shown in Fig. 2, the inside of the external groove body 10 and being equipped with for by external slot close to the side of downflow weir 14
Float coal in body 10 scrapes the scraper mechanism 31 into sculping screen 20, and the scraper mechanism 31 includes variable-frequency motor 28, shaft 29 and scrapes
The output shaft of knife 30, the variable-frequency motor 28 is fixedly connected with one end of shaft 29, and the scraper 30 is fixedly mounted on shaft 29
On, the shaft 29 is located in external groove body 10 and is rotatablely connected with external groove body 10, and the variable-frequency motor 28 is mounted on outside
On the lateral wall of groove body 10.
When work, shaft 29 is driven to rotate by variable-frequency motor 28, shaft 29 drives scraper 30 to scrape float coal to downflow weir 14
Place.
As shown in figure 3, the mechanism for opening/closing includes two the first flashboard regulating mechanisms 36 and the second flashboard being oppositely arranged
Regulating mechanism 37, the first flashboard regulating mechanism 36 is identical with the structure of the second flashboard regulating mechanism 37 and includes overturning electricity
The output shaft of machine 32, leading screw 34, nut 33 and upset connecting rod 35, the upset motor 32 is fixedly connected with the upper end of leading screw 34,
The nut 33 be set in leading screw 34 and with 34 screw-thread fit of leading screw, the upset connecting rod 35 be hollow-core construction, the leading screw 34
It is respectively positioned in upset connecting rod 35 with nut 33, the nut 33 is fixed by the upper inside wall of connecting rod 27 and upset connecting rod 35 to be connected
Connect, the lower end of the upset connecting rod 35 of the first flashboard regulating mechanism 36 and the second flashboard regulating mechanism 37 respectively with overturning flashboard
The lower part of 12 two rotating sheets is hinged, and the upper end and the bottom of intranet bucket 11 of the rotating sheet are hinged, the overturning
The lower part of connecting rod 35 is arranged in intranet bucket 11, and the upset motor 32 is fixed on by mounting rod on external groove body 10.
Acted by the first flashboard regulating mechanism 36 and the second flashboard regulating mechanism 37 so that overturning flashboard 12 open or
It closes.Specifically：The rotation of upset motor 32 drives leading screw 34 to rotate, then nut 33 moves up and down, and nut 33 passes through connecting rod 27
It is connect with upset connecting rod 35, to make upset connecting rod 35 move downward, overturning flashboard 12 is pushed open downwards, that is, opens overturning flashboard
12。
In the present embodiment, the sieve diameter of the desliming screen 1 is 0.5mm, the top major trough body of the external groove body 10
Length L is 700mm, width B is 500mm, height H is 500mm, and the volume of external groove body 10 is 0.17m3, coal sample can be accommodated
100kg or more.
The operation principle of the present embodiment is：It will wait for that floating experiment coal sample is given in desliming screen 1, coal sample passes through belt after desliming
Feeder 2 is fed in storage vat 3, then opens electric brake plate valve 5, then coal sample falls into batcher 4, is delivered to by batcher 4
In sorting groove.
Qualified magnetite powder is fed with a certain amount of coal slime in agitator 6 and is stirred and evenly mixed, required density is prepared into
(can be different density according to needs of production, as density is 1.3kg/L, 1.4kg/L, 1.5kg/L, 1.6kg/L,
1.7kg/L, 1.8kg/L etc.) magnetic iron ore dense media, but the primary magnetic iron ore dense media for only giving a density value.It prepares
Magnetic iron ore dense media is delivered to by delivery pump 7 and closes Jie's bucket 8, then feeds conjunction Jie pipe 16 by closing the pump 15 that is situated between, then feed respectively
Level stream pipeline 17 and upper up-flow pipeline 18.The magnetic iron ore dense media conveyed in upper up-flow pipeline 18 enter after external groove body 10 with
Enter intranet bucket 11 afterwards to promote the coal in intranet bucket 11 to be loosely layered, is less than the coal meeting of the magnetic iron ore density of heavy medium
It floats, the coal more than the magnetic iron ore density of heavy medium can sink (Archimedes principle), such as feed the magnet that density is 1.3kg/L
Mine dense media, then above the density of float coal is less than 1.3, referred to as -1.3kg/L, the cleaned coal collection of splicing after 20 de-mediated of last sculping screen
Hopper is -1.3 cleaned coal Material collecting box for harvesting；It is such as 1.5kg/L magnetic iron ore dense media using density, then after 20 de-mediated of last sculping screen
The cleaned coal Material collecting box for harvesting of splicing is -1.5 cleaned coal Material collecting box for harvesting.The magnetic iron ore dense media that level stream pipeline 17 conveys enters external groove body 10
Promote the float coal (light product) after layering that external groove body 10 is discharged by downflow weir 14 by downflow weir 14；Scraper 30 can the row of auxiliary
The air hose 19 of material, the connection of 10 lower part of external groove body controls intake by air-valve 19-1, is acted on using high-pressure blast and further being promoted
The layering of coal.
Float coal, that is, cleaned coal is discharged to progress dense media removing on sculping screen 20, and the dense media of front half section removing is not plus water is still
Qualified medium (closes and is situated between), is continuing with back to closing in Jie's bucket 8, by flushing head 23 plus is sprayed in the upper center of sculping screen 20
Water further removes medium, and it is dilute medium to add after water, flows to dilute Jie's bucket 21, then to the further dehydration recycling magnet of magnetic separator 22
Miberal powder, the magnetite powder of recycling can continue on for preparing magnetic iron ore dense media.
Cleaned coal is discharged from the discharge end of sculping screen 20, is drawn the cleaned coal Material collecting box for harvesting 26 of corresponding density by traction electric machine 24
To collect cleaned coal below to the discharge end of sculping screen 20.After cleaned coal is discharged, the gate valve 13 of 10 bottom of external groove body is opened, then
Magnetic iron ore dense media is by closing the gravity flow of Jie's return duct 38 back to conjunction Jie bucket 8；The action of motor 32 is afterwards turned over, upset connecting rod is driven
35 move up and down, and overturning flashboard 12 is made to open, then sink to the coal i.e. spoil of lower part after sorting groove layering, be discharged to spoil bucket
It is collected in 9, to complete entire float-sink test process.
Embodiment 2
As shown in figure 4, the present embodiment is as different from Example 1：The track 25 is rectilinear orbit.In the present embodiment,
The structure of rest part, connection relation and operation principle are same as Example 1.
The above is only presently preferred embodiments of the present invention, is not imposed any restrictions to the present invention, every according to the present invention
Technical spirit still falls within skill of the present invention to any simple modification, change and equivalent structure transformation made by above example
In the protection domain of art scheme.
Claims (10)
1. a kind of automatic float-sink test device of coal, it is characterised in that：Including desliming screen (1), storing feeder, drift along automatically
Mechanism, de-mediated mechanism and cleaned coal collecting mechanism, the desliming screen (1) and storing feeder are arranged at the automatic machine that drifts along
The side of structure, the de-mediated mechanism and cleaned coal collecting mechanism are arranged at the other side of the automatic mechanism of drifting along, the storing
Feeder includes belt material-feeding machine (2), storage vat (3) and batcher (4), the discharge port of the belt material-feeding machine (2) and storage
The feed inlet of charging basket (3) connects, and the discharge outlet of storage vat (3) bottom is provided with electric brake plate valve (5), the batcher
(4) feed inlet is located at the lower section of electric brake plate valve (5), the discharging of the feed inlet and desliming screen (1) of the belt material-feeding machine (2)
Mouth connects；The automatic mechanism of drifting along includes sorting groove and dense media feed system, the sorting groove include external groove body (10),
Intranet bucket (11) and spoil bucket (9), intranet bucket (11) setting is in external groove body (10), the intranet bucket (11)
Upper limb be less than the upper limb of external groove body (10), overturning flashboard (12) is provided at the outlet at bottom of the intranet bucket (11),
Mechanism for opening/closing for driving overturning flashboard (12) to open and close is installed on the intranet bucket (11), the external groove body (10)
Upper end is provided with downflow weir (14), and gate valve (13), the spoil bucket (9) are provided at the outlet at bottom of the external groove body (10)
Lower section in gate valve (13) is set, and the dense media feed system conveys magnetic iron ore dense medium into external groove body (10) by pipeline
Matter；The discharge port of the batcher (4) connects with the feed inlet of intranet bucket (11), the import of the de-mediated mechanism and downflow weir
(14) connect, the cleaned coal collecting mechanism is arranged in the cleaned coal exit of the de-mediated mechanism and for collecting conveying cleaned coal.
2. the automatic float-sink test device of a kind of coal described in accordance with the claim 1, it is characterised in that：Dense media supply system
System includes agitator (6), delivery pump (7), closes Jie's bucket (8), closes the pump (15) that is situated between, closes to be situated between and manage (16), level stream pipeline (17) and upper
The outlet of upflow conduit (18), the agitator (6) is connected by pipeline with the import of delivery pump (7), the delivery pump (7)
Outlet by pipeline with close Jie's bucket (8) import connect, it is described close Jie's bucket (8) outlet by pipeline with close Jie pump (15) into
Mouth connects, and the outlet for closing the pump (15) that is situated between is connected by pipeline with the one end for closing Jie's pipe (16), described to close the another of pipe (16) that be situated between
One end connects with one end of level stream pipeline (17) and upper up-flow pipeline (18), the other end of the upper up-flow pipeline (18) with
The upper up-flow import of external groove body (10) lower part connects and the magnetic iron ore dense media of upper up-flow pipeline (18) conveying promotes intranet
Coal in bucket (11) is loosely layered, and upper up-flow valve (18-1) is equipped on the upper up-flow pipeline (18)；The level stream
The other end of pipeline (17) connects with the level stream import on external groove body (10) top and the magnet of level stream pipeline (17) conveying
Mine dense media promotes the float coal after layering that external groove body (10) is discharged by downflow weir (14), pacifies on the level stream pipeline (17)
Equipped with level stream valve (17-1), the height of the level stream import is higher than the upper limb of intranet bucket (11), conjunction Jie bucket (8)
Connected with the lower part of external groove body (10) by closing Jie's return duct (38).
3. the automatic float-sink test device of a kind of coal according to claim 2, it is characterised in that：The external groove body (10)
The air hose (19) to promote coal to be further layered for conveying high-pressure wind, the air hose (19) are connected at the air hose mouth of lower part
On air-valve (19-1) is installed, the height of the air hose mouth higher than the upper up-flow import height and flowed into less than the level
The height of mouth.
4. the automatic float-sink test device of a kind of coal according to claim 2, it is characterised in that：Level stream import position
Side in external groove body (10), the downflow weir (14) are located at the other side of external groove body (10), the level stream import with
Downflow weir (14) is oppositely arranged, and the feed inlet of the intranet bucket (11) and the level stream import are located at the same side.
5. the automatic float-sink test device of a kind of coal according to claim 2, it is characterised in that：The de-mediated mechanism includes
Sculping screen (20) rinses head (23), dilute Jie's bucket (21) and magnetic separator (22), and the sculping screen (20) is obliquely installed and sculping screen
(20) outlet end is less than the input end of sculping screen (20), and the import of the sculping screen (20) connects with downflow weir (14), described
One section of the close downflow weir (14) of sculping screen (20) is to close Jie's section (20-1), the one of the separate downflow weir (14) of the sculping screen (20)
Section is dilute Jie's section (20-2)；The flushing head (23) is mounted on above sculping screen (20) and positioned at conjunction Jie's section (20-1) and dilute Jie
Dilute Jie outlet of section joint (20-2), dilute Jie's section (20-2) bottom is connected by pipeline with the import of dilute Jie's bucket (21),
The outlet of dilute Jie's bucket (21) is connected by pipeline with the import of magnetic separator (22), and the conjunction for closing the bottom Jie's section (20-1) is situated between
Outlet is connected by pipeline with the import for closing Jie's bucket (8).
6. the automatic float-sink test device of a kind of coal according to claim 5, it is characterised in that：The cleaned coal collecting mechanism
Including traction electric machine (24), track (25) and cleaned coal Material collecting box for harvesting (26), the quantity of the cleaned coal Material collecting box for harvesting (26) is multiple and more
A cleaned coal Material collecting box for harvesting (26) is arranged on track (25), and the traction electric machine (24) passes through traction rope and multiple cleaned coal Material collecting box for harvesting
(26) it is connected and multiple cleaned coal Material collecting box for harvesting (26) is driven to be run along track (25) to collect the cleaned coal of different densities.
7. the automatic float-sink test device of a kind of coal according to claim 6, it is characterised in that：The track (25) is straight
Trajectory or semi-circular track.
8. the automatic float-sink test device of a kind of coal according to claim 5, it is characterised in that：The external groove body (10)
Inside and be equipped with close to the side of downflow weir (14) for scraping the float coal in external groove body (10) into sculping screen (20)
Scraper mechanism (31), the scraper mechanism (31) include variable-frequency motor (28), shaft (29) and scraper (30), the variable-frequency motor
(28) output shaft is fixedly connected with the one end of shaft (29), and the scraper (30) is fixedly mounted in shaft (29), described turn
Axis (29) is located in external groove body (10) and is rotatablely connected with external groove body (10), and the variable-frequency motor (28) is mounted on external slot
On the lateral wall of body (10).
9. the automatic float-sink test device of a kind of coal described in accordance with the claim 1, it is characterised in that：The mechanism for opening/closing includes
Two the first flashboard regulating mechanisms (36) and the second flashboard regulating mechanism (37) being oppositely arranged, the first flashboard regulating mechanism
(36) identical with the structure of the second flashboard regulating mechanism (37) and include upset motor (32), leading screw (34), nut (33) and
The output shaft of upset connecting rod (35), the upset motor (32) is fixedly connected with the upper end of leading screw (34), nut (33) set
Be located at leading screw (34) and with leading screw (34) screw-thread fit, the upset connecting rod (35) be hollow-core construction, the leading screw (34) and spiral shell
Female (33) are respectively positioned in upset connecting rod (35), the upper inside wall that the nut (33) passes through connecting rod (27) and upset connecting rod (35)
It is fixedly connected, the lower end point of the upset connecting rod (35) of the first flashboard regulating mechanism (36) and the second flashboard regulating mechanism (37)
Lower part not with two rotating sheets of overturning flashboard (12) is hinged, the bottom of the upper end and intranet bucket (11) of the rotating sheet
It is hinged, in intranet bucket (11), the upset motor (32) passes through mounting rod for the lower part setting of the upset connecting rod (35)
It is fixed on external groove body (10).
10. the automatic float-sink test device of a kind of coal described in accordance with the claim 1, it is characterised in that：The desliming screen (1)
Sieve diameter is 0.5mm, and the length L of the top major trough body of the external groove body (10) is 700mm, width B is 500mm, height H
For 500mm.
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| CN201810271883.8A CN108435405B (en) | 2018-03-29 | 2018-03-29 | Automatic coal floating and sinking test device |
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| CN201810271883.8A CN108435405B (en) | 2018-03-29 | 2018-03-29 | Automatic coal floating and sinking test device |
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| CN110385193A (en) * | 2019-08-31 | 2019-10-29 | 贵州大学 | A kind of automatic oscillation experiment device and method for coal density classification |
| CN110479474A (en) * | 2019-09-17 | 2019-11-22 | 中国矿业大学 | A kind of ramp way reinforcing dense-medium shallow-tank sorting unit |
| CN111672618A (en) * | 2020-06-15 | 2020-09-18 | 北京沄汇智能科技有限公司 | Grading heavy liquid blending method and system for sink-float experiment |
| CN113083488A (en) * | 2021-04-07 | 2021-07-09 | 西安科技大学 | Automatic float-sink test equipment of coal |
| CN113413999A (en) * | 2021-06-28 | 2021-09-21 | 中国水利水电第九工程局有限公司 | Online intelligent detection control technology for quality of semi-finished product in grit coarse crushing production workshop |
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| CN113083488A (en) * | 2021-04-07 | 2021-07-09 | 西安科技大学 | Automatic float-sink test equipment of coal |
| CN113413999A (en) * | 2021-06-28 | 2021-09-21 | 中国水利水电第九工程局有限公司 | Online intelligent detection control technology for quality of semi-finished product in grit coarse crushing production workshop |
| CN113413999B (en) * | 2021-06-28 | 2022-06-28 | 中国水利水电第九工程局有限公司 | On-line intelligent detection control method for quality of semi-finished product in grit coarse crushing production workshop |
| CN115970882A (en) * | 2023-03-17 | 2023-04-18 | 天津美腾科技股份有限公司 | Regulation and control method |
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| CN108435405B (en) | 2023-07-14 |
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