CN208554574U - A kind of automatic float-sink test device of coal - Google Patents

A kind of automatic float-sink test device of coal Download PDF

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Publication number
CN208554574U
CN208554574U CN201820440840.3U CN201820440840U CN208554574U CN 208554574 U CN208554574 U CN 208554574U CN 201820440840 U CN201820440840 U CN 201820440840U CN 208554574 U CN208554574 U CN 208554574U
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China
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coal
bucket
floating
inlet
screen
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CN201820440840.3U
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李振
张新元
屈进州
刘莉君
于伟
朱子祺
田毅
吕宏广
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Xian University of Science and Technology
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Xian University of Science and Technology
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Abstract

本实用新型公开了一种煤炭自动浮沉试验装置,包括脱泥筛、储料给料机构、自动浮沉机构、脱介机构和精煤集料机构,脱泥筛和储料给料机构均设置在自动浮沉机构一侧,脱介机构和精煤集料机构均设置在自动浮沉机构另一侧,储料给料机构包括皮带上料机、储料桶和给料机;自动浮沉机构包括分选槽和重介质供给系统,分选槽包括外部槽体、内部网桶和矸石桶,内部网桶上安装有启闭机构,外部槽体上端设有溢流堰,外部槽体底部出口处设有闸阀,矸石桶设置在闸阀下方,重介质供给系统通过管道向外部槽体内输送磁铁矿重介质;脱介机构进口与溢流堰相接,精煤集料机构设置在脱介机构的精煤出口处。本实用新型能实现自动捞浮沉,煤炭处理量大,自动化程度高。

The utility model discloses a coal automatic floating and sinking test device, which comprises a desliming screen, a material storage and feeding mechanism, an automatic floating and sinking mechanism, a de-intermediating mechanism and a clean coal aggregate mechanism. On one side of the automatic floating and sinking mechanism, the de-intermediation mechanism and the clean coal aggregate mechanism are arranged on the other side of the automatic floating and sinking mechanism. The material storage and feeding mechanism includes a belt feeder, a storage bucket and a feeder; Tank and heavy medium supply system. The sorting tank includes an external tank, an internal mesh bucket and a gangue bucket. An opening and closing mechanism is installed on the internal mesh bucket. The upper end of the external tank is provided with an overflow weir, and the outlet at the bottom of the external tank is provided with The gate valve, the gangue bucket is set under the gate valve, the heavy medium supply system transports the magnetite heavy medium to the external tank through the pipeline; the inlet of the removal mechanism is connected to the overflow weir, and the clean coal aggregate mechanism is set in the clean coal of the removal mechanism. exit. The utility model can realize automatic fishing, floating and sinking, large coal processing capacity and high degree of automation.

Description

A kind of automatic float-sink test device of coal
Technical field
The utility model belongs to coal and drifts along technical field, is specifically related to a kind of automatic float-sink test device of coal.
Background technique
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.Float-sink test is carried out every time and at least needs 2~3 people operation simultaneously, and primary test at least needs Continuous work 5h or more could will enter to wash raw coal and separate according to density level, if count sunning, weighing, sampling, chemical examination in 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 inaccuracy when sampling less, not having representativeness, serious labor intensive and time again when sampling more, generally The personnel tested did not carried out the test knowledge learning of profession mostly, therefore inevitably will affect during the test The accuracy of test.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 floating object, 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) - 0.5mm the particulate that R.P.Killmeyer etc. (1992) has studied 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) using similar approach has studied the separation and concentration of coarse grain copper mine.
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) application 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) Similar dense media shallow slot discharge is discharged in the device and method of material, floating object.The patent of the applications such as U.S. B.D.Peacock (US5255859A) devised in one kind drift along grader for separate 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 is higher than artificial fishing and drifts along 16.79%.2004, Yanzhou Mining (Group) Co., Ltd. Qiu Zhaoqin was 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 lower than 10A) mode, it can guarantee heavy-fluid density in 1.2g/cm by control electric current3~2.0g/cm3Model In enclosing, the coal sample of 50mm~0.5mm particle size fraction has been successfully separated with the device.2006, Shanghai municipal works design studies were total The novel floating depositing pool that institute Wang Yin etc. describes a kind of double-deck advection sedimentation and air bearing is combined, the pond is for handling low turbid, Gao Zao The raw water being alternately present with high concentrtion.
In terms of domestic patent, the utility model patent of Yongcheng Coal & Electricity Holding Group Co., Ltd. Ma Zhijie etc. (2012) application The coal designed in (application No. is 201210322949.4) device that drifts along includes heavy-fluid bucket and flotation unit, and heavy-fluid bucket passes through company Adapter tube road 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, outside Bucket bottom is provided with the perfusion tube with pipe close;The pump housing is provided in connecting pipe.Though this device saves manpower to a certain extent Resource 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.Utility model patent (the Shen of Anhui University of Science and Technology Zhu Jinbo (2012) application First coal sample please be put into the net bottom bucket in float-sink test bucket number 201220098364.4) to be a kind of machine that continuously drifts along automatically, Then the test(ing) medium that each medium contains different densities in bucket is successively pumped into float-sink test bucket, carries out float-sink test, and It is provided with netted material scraper, sculping screen and product collector, handles each density grade product in time.Though this patent saves people It is power, time-consuming short, but it feeds in medium, is also inadequate in terms of reflux type, automatic/hand operation with control in terms of need to be changed Into.China Mining University, which contains, discloses one at the utility model patent (application No. is 201420020314.3) for waiting (2014) to apply Kind is automatic to fish out the slot that drifts along, and the both ends on groove body top one side are equipped with bracket, and bracket supports the plate for being connected to be covered with micropore The other end of rotation axis, bracket is connected by axis with motor;When motor rotation, plate is driven to rotate in the slot that drifts along, floated The coal floated in deep gouge is carried over pivotal plate, realizes that automatic fishing is drifted along.Though this device is simple, easy to operate, it exists Certain problem, perforated flat plate effectively all cannot take all lower density coal particles out of the slot that drifts along, nubbin coal sample Directly affect next density level drift along as a result, and since required density fluid of drifting along cannot be replaced automatically, need manually more It changes, it is also not comprehensive to fish out the purpose drifted along required by realization utility model person automatically.
Utility model content
The purpose of the utility model is to overcome above-mentioned deficiencies in the prior art, provide a kind of automatic float-sink test of coal Device uses magnetic iron ore dense media to replace zinc chloride to make heavy-fluid and carry out floating experiment, and the density fluid for drifting along required can be automatic Replacement, 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.
A kind of in order to achieve the above purposes, the technical solution adopted by the utility model is: automatic float-sink test device of coal, Be characterized in that: including desliming screen, storing feeder, drift along mechanism, de-mediated mechanism and cleaned coal collecting mechanism automatically, the desliming Sieve and storing feeder are arranged at the side of the mechanism of drifting along automatically, and the de-mediated mechanism and cleaned coal collecting mechanism are all provided with It sets in the other side of the mechanism of drifting along automatically, the storing feeder includes belt material-feeding machine, storage vat and batcher, institute The discharge port for stating belt material-feeding machine connects with the feed inlet of storage vat, and the discharge outlet of the storage vat bottom is provided with electric brake Plate 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 desliming screen Discharge port connects;Automatically the mechanism of drifting along includes sorting groove and dense media feed system, the sorting groove include external groove body, Intranet bucket and spoil bucket, the intranet bucket are arranged in external groove body, and the upper limb of the intranet bucket is lower than external groove body Upper limb, be provided with overturning flashboard at the outlet at bottom of the intranet bucket, be equipped on the intranet bucket and turned over for driving The mechanism for opening/closing of turnstile plate opening and closing, the upper end of the external groove body are provided with overflow weir, at the outlet at bottom of the external groove body It is provided with gate valve, the lower section of gate valve is arranged in the spoil bucket, and the dense media feed system is by pipeline into external groove body Convey 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 Connect with overflow weir, the cleaned coal collecting mechanism is arranged in the cleaned coal exit of the de-mediated mechanism and for collecting conveying essence Coal.
The above-mentioned automatic float-sink test device of a kind of coal, it is characterised in that: the dense media feed system includes stirring Bucket, delivery pump, conjunction Jie's 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 is equipped with upper up-flow valve 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 overflow 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 closing Jie's return pipe with the lower part of external groove body.
The above-mentioned automatic float-sink test device of a kind 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 for conveying high-pressure wind to promote coal to be further layered, air-valve, the air hose are installed on the air hose The height of mouth is higher than the height of the upper up-flow import and is lower than the height of the level stream import.
The above-mentioned automatic float-sink test device of a kind of coal, it is characterised in that: the level stream import is located at external groove body Side, the overflow weir is located at the other side of external groove body, and the level stream import is oppositely arranged with overflow weir, the inside The feed inlet of net bucket and the level stream import are located at the same side.
The above-mentioned automatic float-sink test device of a kind 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 lower than the input end of sculping screen, described The import of sculping screen connects with overflow weir, and the sculping screen closes Jie's section close to one section of overflow weir, and the sculping screen is far from overflowing One section for flowing weir is dilute Jie's section;The flushing head, which is mounted on above sculping screen and is located at, closes 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 by pipeline with the import for closing Jie's bucket.
The above-mentioned automatic float-sink test device of a kind of coal, it is characterised in that: the cleaned coal collecting mechanism includes traction electricity Machine, track and cleaned coal Material collecting box for harvesting, the quantity of the cleaned coal Material collecting box for harvesting are 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 run along track To collect the cleaned coal of different densities.
The above-mentioned automatic float-sink test device of a kind 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 intracorporal float coal of external slot 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.
The above-mentioned automatic float-sink test device of a kind 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 overturning motor, lead screw, nut and upset connecting rod, the output shaft of the overturning motor and lead screw it is upper End is fixedly connected, and the nut is set in lead screw and cooperates with threads of lead screw, and the upset connecting rod is hollow structure, the lead 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 of the rotating sheet and the bottom of intranet bucket are hinged, including the lower part setting of the upset connecting rod In portion's net bucket, the overturning motor is fixed on external groove body by mounting rod.
The above-mentioned automatic float-sink test device of a kind 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 utility model has the following advantages:
1, existing floating experiment makees heavy-fluid using zinc chloride, has strong corrosive, generates injury to human body;And this reality Realizing magnetic iron ore dense media with novel coal automatic floating sink device replaces zinc chloride to be tested, oneself can prepare magnetic iron ore weight Medium, can also directly utilize the magnetic iron ore dense media of coal preparation plant, and experimental result accomplishes the mesh for Site Service closer to scene 's.
2, it is one prominent that the utility model replaces heavy-fluid zinc chloride to carry out coal floating experiment using magnetite powder dense media It is broken, and the density of magnetic iron ore dense media can make scene according to experiment or needs of production flexible modulation, energy experimental result Significant data carry out Instructing manufacture.
3, the utility model is to combine artificial progress float-sink test data at present and automation experimental technique, development corresponding Automatic operation management measure, improves test accuracy, and the automatic of formation fishes out the device that drifts along, it can more comprehensive to realize certainly Dynamic fishing is drifted along, and coal treating capacity is big, easy to operate, high degree of automation.
4, the utility model can contact the magnetic at the scene of closely can directly taking using magnetite powder dense media with production scene Iron Ore Powder dense media carries out quick float-sink test, carries out production inspection to produced on-site, forms fast feedback mechanism;In addition, chlorine Changing zinc heavy-fluid has strong corrosivity, seriously endangers the physical and mental health of operator, and environmental pollution is larger, magnetite powder Dense media can prevent the drawbacks of zinc chloride heavy-fluid completely.
5, the utility model automatic floating sink device can realize that the automation of coal float-sink test carries out, and liberate manpower, improve Test efficiency reduces the human error in experimentation, improves operation precision.It is connect in addition, reducing operator with zinc chloride The chance of touching can effectively prevent operator to be chlorinated the phenomenon that zinc heavy-fluid is corroded, the physical and mental health of effective protection operator.
Below by drawings and examples, the utility model is further described in detail.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment 1.
Fig. 2 is the positional diagram of scraper mechanism and external groove body in the utility model embodiment 1.
Fig. 3 is the structural representation of the first flashboard regulating mechanism, the second flashboard regulating mechanism in the utility model embodiment 1 Figure.
Fig. 4 is the structural schematic diagram of cleaned coal collecting mechanism in the utility model embodiment 2.
Description of symbols:
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-overflow 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 section 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-overturning motors;33-nuts;34-lead screws;
35-upset connecting rods;36-the first flashboard regulating mechanism;37-the second flashboard regulating mechanism;
38-close Jie's return pipe.
Specific embodiment
Embodiment 1
As shown in Figure 1, a kind of automatic float-sink test device of coal of the utility model, including desliming screen 1, storing batcher Structure, mechanism of drifting along automatically, de-mediated mechanism and cleaned coal collecting mechanism, the desliming screen 1 and storing feeder are arranged at described Automatically the side for mechanism of drifting along, the de-mediated mechanism and cleaned coal collecting mechanism are arranged at described the another of mechanism that drift along automatically Side, the storing feeder include belt material-feeding machine 2, storage vat 3 and batcher 4, the discharge port of the belt material-feeding machine 2 with The feed inlet of storage vat 3 connects, and the discharge outlet of 3 bottom of storage vat 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, and the feed inlet of the belt material-feeding machine 2 connects with the discharge port of desliming screen 1;It is described Automatically mechanism of drifting along includes sorting groove and dense media feed system, and the sorting groove includes external groove body 10,11 and of intranet bucket Spoil bucket 9, the intranet bucket 11 are arranged in external groove body 10, and the upper limb of the intranet bucket 11 is lower than external groove body 10 Upper limb is provided with overturning flashboard 12 at the outlet at bottom of the intranet bucket 11, is equipped on the intranet bucket 11 for band The mechanism for opening/closing that dynamic overturning flashboard 12 opens and closes, the upper end of the external groove body 10 are provided with overflow weir 14, the external groove body 10 Outlet at bottom at be provided with gate valve 13, the lower section of gate valve 13 is arranged in the spoil bucket 9, and the dense media feed system passes through Pipeline conveys magnetic iron ore dense media into external groove body 10;The feed inlet phase of the discharge port of the batcher 4 and intranet bucket 11 It connects, the import of the de-mediated mechanism connects with overflow weir 14, and the cleaned coal of the de-mediated mechanism is arranged in the cleaned coal collecting mechanism Exit and for collect conveying cleaned coal.
As shown in Figure 1, the dense media feed system includes agitator 6, delivery pump 7, conjunction Jie's 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, which passes through pipeline and closes, to be situated between 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's pipe 16 The other 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 and outside 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 external 10 top of 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 overflow 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 pipe 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 lower 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 overflow weir 14 is located at external groove body 10 other side, the level stream import are oppositely arranged with overflow 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 lower than sculping screen 20 input end, the import of the sculping screen 20 and overflow Stream weir 14 connects, and the sculping screen 20 closes Jie's section 20-1 close to one section of overflow weir 14, and the sculping screen 20 is far from overflow weir One section of 14 is dilute Jie's section 20-2;The flushing head 23, which is mounted on 20 top of sculping screen and is located at, closes Jie's section 20-1 and dilute Jie's section Dilute Jie outlet of the joint 20-2, dilute bottom Jie's section 20-2 is connected by pipeline with the import of dilute Jie's bucket 21, dilute Jie Bucket 21 outlet connect by pipeline with the import of magnetic separator 22, it is described close the bottom Jie's section 20-1 conjunction 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 external 10 bottom of groove body passes through opening and closing 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 close to the side of overflow weir 14 for by external slot 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 overflow 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, lead screw 34, nut 33 and upset connecting rod 35, the overturning motor 32 is fixedly connected with the upper end of lead screw 34, The nut 33 is set in lead screw 34 and is threadedly engaged with lead screw 34, and the upset connecting rod 35 is hollow structure, the lead screw 34 It is respectively positioned in upset connecting rod 35 with nut 33, the nut 33 connects by the way that the upper inside wall of connecting rod 27 and upset connecting rod 35 is fixed 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 of the rotating sheet and the bottom of intranet bucket 11 are hinged, the overturning The lower part of connecting rod 35 is arranged in intranet bucket 11, and the overturning motor 32 is fixed on external groove body 10 by mounting rod.
Acted by the first flashboard regulating mechanism 36 and the second flashboard regulating mechanism 37 so that overturning flashboard 12 open or It closes.Specific: the overturning rotation of motor 32 drives lead 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, so that upset connecting rod 35 be made to 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 working principle of the present embodiment are as follows: will be given to floating experiment coal sample 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 in agitator 6 with a certain amount of coal slime 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's 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, less than the coal meeting of the magnetic iron ore density of heavy medium It floats, the coal greater 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 the density of upper float coal is less than 1.3, referred to as -1.3kg/L, the cleaned coal collection of splicing after last 20 de-mediated of 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 last 20 de-mediated of 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 External groove body 10 is discharged by overflow weir 14 by overflow weir 14 in float coal (light product) after promoting layering;Scraper 30 can the row of auxiliary The air hose 19 of material, external 10 lower part of groove body connection 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), continues to use back to closing in Jie's bucket 8, by flushing head 23 plus sprays in the upper center of sculping screen 20 Water further removes medium, and adding after water is dilute medium, 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 pipe 38 back to conjunction Jie's bucket 8;The movement of motor 32 is afterwards turned over, upset connecting rod is driven 35 move up and down, and make to overturn the opening of flashboard 12, 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 unlike the first embodiment: the track 25 is rectilinear orbit.In the present embodiment, The structure of rest part, connection relationship and working principle are same as Example 1.
The above is only the preferred embodiment of the utility model, not imposes any restrictions to the utility model, all According to the utility model technical spirit any simple modification, change and equivalent structure transformation to the above embodiments, still Belong in the protection scope of technical solutions of the utility model.

Claims (10)

1.一种煤炭自动浮沉试验装置,其特征在于:包括脱泥筛(1)、储料给料机构、自动浮沉机构、脱介机构和精煤集料机构,所述脱泥筛(1)和储料给料机构均设置在所述自动浮沉机构的一侧,所述脱介机构和精煤集料机构均设置在所述自动浮沉机构的另一侧,所述储料给料机构包括皮带上料机(2)、储料桶(3)和给料机(4),所述皮带上料机(2)的出料口与储料桶(3)的进料口相接,所述储料桶(3)底部的出料口处设置有电动闸板阀(5),所述给料机(4)的进料口位于电动闸板阀(5)的下方,所述皮带上料机(2)的进料口与脱泥筛(1)的出料口相接;所述自动浮沉机构包括分选槽和重介质供给系统,所述分选槽包括外部槽体(10)、内部网桶(11)和矸石桶(9),所述内部网桶(11)设置在外部槽体(10)内,所述内部网桶(11)的上缘低于外部槽体(10)的上缘,所述内部网桶(11)的底部出口处设置有翻转闸板(12),所述内部网桶(11)上安装有用于带动翻转闸板(12)启闭的启闭机构,所述外部槽体(10)的上端设置有溢流堰(14),所述外部槽体(10)的底部出口处设置有闸阀(13),所述矸石桶(9)设置在闸阀(13)的下方,所述重介质供给系统通过管道向外部槽体(10)内输送磁铁矿重介质;所述给料机(4)的出料口与内部网桶(11)的进料口相接,所述脱介机构的进口与溢流堰(14)相接,所述精煤集料机构设置在所述脱介机构的精煤出口处且用于收集输送精煤。1. A coal automatic floating and sinking test device is characterized in that: comprising a desliming screen (1), a material storage feeding mechanism, an automatic floating and sinking mechanism, a de-intermediation mechanism and a clean coal aggregate mechanism, the desliming screen (1) and the storage and feeding mechanism are arranged on one side of the automatic floating and sinking mechanism, the de-intermediation mechanism and the clean coal aggregate mechanism are both arranged on the other side of the automatic floating and sinking mechanism, and the storage and feeding mechanism includes A belt feeder (2), a storage bucket (3) and a feeder (4), the discharge port of the belt feeder (2) is connected with the feed port of the storage bucket (3), so An electric gate valve (5) is provided at the discharge port at the bottom of the storage bucket (3), and the feeding port of the feeder (4) is located below the electric gate valve (5). The feeding port of the feeder (2) is connected with the discharging port of the desliming screen (1); the automatic floating and sinking mechanism includes a sorting tank and a heavy medium supply system, and the sorting tank includes an external tank body (10) , an inner mesh bucket (11) and a gangue bucket (9), the inner mesh bucket (11) is arranged in the outer tank body (10), and the upper edge of the inner mesh bucket (11) is lower than the outer tank body (10) ), the bottom outlet of the inner mesh bucket (11) is provided with a flip gate (12), and the internal mesh bucket (11) is provided with an opening and closing for driving the flip gate (12) to open and close. The upper end of the outer tank body (10) is provided with an overflow weir (14), the bottom outlet of the outer tank body (10) is provided with a gate valve (13), and the gangue bucket (9) is provided at the gate valve Below (13), the heavy medium supply system transports the magnetite heavy medium into the outer tank (10) through pipes; the outlet of the feeder (4) and the inlet of the inner mesh barrel (11) The feed ports are connected, the inlet of the de-intermediation mechanism is connected to the overflow weir (14), and the clean coal collecting mechanism is arranged at the clean coal outlet of the de-intermediation mechanism and is used for collecting and conveying the clean coal. 2.按照权利要求1所述的一种煤炭自动浮沉试验装置,其特征在于:所述重介质供给系统包括搅拌桶(6)、输送泵(7)、合介桶(8)、合介泵(15)、合介管(16)、水平流管道(17)和上升流管道(18),所述搅拌桶(6)的出口通过管道与输送泵(7)的进口相接,所述输送泵(7)的出口通过管道与合介桶(8)的进口相接,所述合介桶(8)的出口通过管道与合介泵(15)的进口相接,所述合介泵(15)的出口通过管道与合介管(16)的一端相接,所述合介管(16)的另一端与水平流管道(17)和上升流管道(18)的一端均相接,所述上升流管道(18)的另一端与外部槽体(10)下部的上升流进口相接且上升流管道(18)输送的磁铁矿重介质促使内部网桶(11)内的煤炭松散分层,所述上升流管道(18)上安装有上升流阀门(18-1);所述水平流管道(17)的另一端与外部槽体(10)上部的水平流进口相接且水平流管道(17)输送的磁铁矿重介质促使分层后的浮煤通过溢流堰(14)排出外部槽体(10),所述水平流管道(17)上安装有水平流阀门(17-1),所述水平流进口的高度高于内部网桶(11)的上缘,所述合介桶(8)通过合介回流管(38)与外部槽体(10)的下部相接。2. The automatic coal floating and sinking test device according to claim 1, characterized in that: the heavy medium supply system comprises a mixing barrel (6), a transfer pump (7), a mixing barrel (8), and a mixing pump (15), a combined medium pipe (16), a horizontal flow pipe (17) and an upward flow pipe (18), the outlet of the mixing barrel (6) is connected to the inlet of the conveying pump (7) through a pipe, and the conveying The outlet of the pump (7) is connected to the inlet of the mixing barrel (8) through a pipeline, the outlet of the mixing barrel (8) is connected to the inlet of the mixing pump (15) through a pipeline, and the mixing pump ( The outlet of 15) is connected with one end of the combined medium pipe (16) through the pipeline, and the other end of the combined medium pipe (16) is connected with one end of the horizontal flow pipe (17) and the upflow pipe (18), so the The other end of the up-flow pipe (18) is connected to the up-flow inlet at the lower part of the outer tank body (10), and the magnetite heavy medium conveyed by the up-flow pipe (18) promotes the coal in the inner mesh barrel (11) to be loosely dispersed. layer, an upward flow valve (18-1) is installed on the upward flow pipe (18); the other end of the horizontal flow pipe (17) is connected to the horizontal flow inlet on the upper part of the outer tank (10) and the horizontal flow The magnetite heavy medium conveyed by the pipeline (17) promotes the stratified floating coal to be discharged from the external tank (10) through the overflow weir (14), and the horizontal flow pipeline (17) is provided with a horizontal flow valve (17- 1), the height of the horizontal flow inlet is higher than the upper edge of the inner mesh barrel (11), and the mixing barrel (8) is connected to the lower part of the outer tank (10) through the mixing return pipe (38). 3.按照权利要求2所述的一种煤炭自动浮沉试验装置,其特征在于:所述外部槽体(10)下部的风管口处连接有用于输送高压风以促进煤炭进一步分层的风管(19),所述风管(19)上安装有风阀(19-1),所述风管口的高度高于所述上升流进口的高度且低于所述水平流进口的高度。3. A coal automatic floating and sinking test device according to claim 2, characterized in that: an air duct for conveying high-pressure air to promote further stratification of coal is connected at the air duct opening at the lower part of the outer tank (10). (19), an air valve (19-1) is installed on the air duct (19), and the height of the air duct opening is higher than the height of the upward flow inlet and lower than the height of the horizontal flow inlet. 4.按照权利要求2所述的一种煤炭自动浮沉试验装置,其特征在于:所述水平流进口位于外部槽体(10)的一侧,所述溢流堰(14)位于外部槽体(10)的另一侧,所述水平流进口与溢流堰(14)相对设置,所述内部网桶(11)的进料口和所述水平流进口位于同一侧。4. A coal automatic floating and sinking test device according to claim 2, characterized in that: the horizontal flow inlet is located on one side of the outer tank (10), and the overflow weir (14) is located in the outer tank (10). 10) On the other side, the horizontal flow inlet is arranged opposite to the overflow weir (14), and the feed inlet of the inner mesh barrel (11) and the horizontal flow inlet are located on the same side. 5.按照权利要求2所述的一种煤炭自动浮沉试验装置,其特征在于:所述脱介机构包括脱介筛(20)、冲洗水头(23)、稀介桶(21)和磁选机(22),所述脱介筛(20)倾斜设置且脱介筛(20)的出口端低于脱介筛(20)的进口端,所述脱介筛(20)的进口与溢流堰(14)相接,所述脱介筛(20)靠近溢流堰(14)的一段为合介段(20-1),所述脱介筛(20)远离溢流堰(14)的一段为稀介段(20-2);所述冲洗水头(23)安装在脱介筛(20)上方且位于合介段(20-1)与稀介段(20-2)相接处,所述稀介段(20-2)底部的稀介出口通过管道与稀介桶(21)的进口相接,所述稀介桶(21)的出口通过管道与磁选机(22)的进口相接,所述合介段(20-1)底部的合介出口通过管道与合介桶(8)的进口相接。5 . The automatic coal floating and sinking test device according to claim 2 , wherein the de-intermediation mechanism comprises a de-intermediation screen ( 20 ), a flushing water head ( 23 ), a dilute medium barrel ( 21 ) and a magnetic separator. 6 . (22), the de-intermediation screen (20) is inclined and the outlet end of the de-intermediation screen (20) is lower than the inlet end of the de-intermediation screen (20), the inlet of the de-intermediation screen (20) and the overflow weir (14) Adjoining, a section of the media removal screen (20) close to the overflow weir (14) is a mediating section (20-1), and a section of the media removal screen (20) away from the overflow weir (14) It is the dilute medium section (20-2); the flushing water head (23) is installed above the medium removal screen (20) and is located at the junction of the combined medium section (20-1) and the dilute medium section (20-2), so The dilute medium outlet at the bottom of the dilute medium section (20-2) is connected to the inlet of the dilute medium bucket (21) through a pipeline, and the outlet of the dilute medium bucket (21) is connected to the inlet of the magnetic separator (22) through a pipeline. Then, the mixing outlet at the bottom of the mixing section (20-1) is connected to the inlet of the mixing barrel (8) through a pipeline. 6.按照权利要求5所述的一种煤炭自动浮沉试验装置,其特征在于:所述精煤集料机构包括牵引电机(24)、轨道(25)和精煤集料箱(26),所述精煤集料箱(26)的数量为多个且多个精煤集料箱(26)均设置在轨道(25)上,所述牵引电机(24)通过牵引绳与多个精煤集料箱(26)均相连且带动多个精煤集料箱(26)沿着轨道(25)运行以收集不同密度的精煤。6. The automatic coal floating and sinking test device according to claim 5, wherein the clean coal aggregate mechanism comprises a traction motor (24), a rail (25) and a clean coal aggregate box (26), The number of the clean coal collection boxes (26) is multiple, and the plurality of clean coal collection boxes (26) are all arranged on the track (25), and the traction motor (24) is connected to the plurality of clean coal collection boxes through a traction rope. The bins (26) are all connected and drive a plurality of clean coal collecting bins (26) to run along the track (25) to collect clean coals of different densities. 7.按照权利要求6所述的一种煤炭自动浮沉试验装置,其特征在于:所述轨道(25)为直线轨道或半圆轨道。7 . The automatic coal floating and sinking test device according to claim 6 , wherein the track ( 25 ) is a linear track or a semicircular track. 8 . 8.按照权利要求5所述的一种煤炭自动浮沉试验装置,其特征在于:所述外部槽体(10)的内部且靠近溢流堰(14)的一侧安装有用于将外部槽体(10)内的浮煤刮入脱介筛(20)的刮刀机构(31),所述刮刀机构(31)包括变频电机(28)、转轴(29)和刮刀(30),所述变频电机(28)的输出轴与转轴(29)的一端固定连接,所述刮刀(30)固定安装在转轴(29)上,所述转轴(29)位于外部槽体(10)内且与外部槽体(10)转动连接,所述变频电机(28)安装在外部槽体(10)的外侧壁上。8. A coal automatic floating and sinking test device according to claim 5, characterized in that: the inside of the outer tank body (10) and the side close to the overflow weir (14) are installed with the outer tank body (14). The floating coal in 10) is scraped into the scraper mechanism (31) of the de-intermediation screen (20), the scraper mechanism (31) includes a frequency conversion motor (28), a rotating shaft (29) and a scraper (30), and the frequency conversion motor ( The output shaft of 28) is fixedly connected with one end of the rotating shaft (29). 10) Rotating connection, the variable frequency motor (28) is installed on the outer side wall of the outer tank body (10). 9.按照权利要求1所述的一种煤炭自动浮沉试验装置,其特征在于:所述启闭机构包括两个相对设置的第一闸板调节机构(36)和第二闸板调节机构(37),所述第一闸板调节机构(36)和第二闸板调节机构(37)的结构相同且均包括翻转电机(32)、丝杠(34)、螺母(33)和翻转连杆(35),所述翻转电机(32)的输出轴与丝杠(34)的上端固定连接,所述螺母(33)套设在丝杠(34)且与丝杠(34)螺纹配合,所述翻转连杆(35)为空心结构,所述丝杠(34)和螺母(33)均位于翻转连杆(35)内,所述螺母(33)通过连接杆(27)与翻转连杆(35)的上部内壁固定连接,所述第一闸板调节机构(36)和第二闸板调节机构(37)的翻转连杆(35)的下端分别与翻转闸板(12)的两个翻转片的下部相铰接,所述翻转片的上端与内部网桶(11)的底部相铰接,所述翻转连杆(35)的下部设置在内部网桶(11)内,所述翻转电机(32)通过安装杆固定在外部槽体(10)上。9 . The automatic coal floating and sinking test device according to claim 1 , wherein the opening and closing mechanism comprises two oppositely arranged first gate adjustment mechanisms (36) and second gate adjustment mechanisms (37 ). 10 . ), the first gate adjustment mechanism (36) and the second gate adjustment mechanism (37) have the same structure and both include a turning motor (32), a lead screw (34), a nut (33) and a turning connecting rod ( 35), the output shaft of the turning motor (32) is fixedly connected with the upper end of the lead screw (34), the nut (33) is sleeved on the lead screw (34) and is threadedly matched with the lead screw (34), the The turning connecting rod (35) is a hollow structure, the lead screw (34) and the nut (33) are both located in the turning connecting rod (35), and the nut (33) is connected to the turning connecting rod (35) through the connecting rod (27) ) is fixedly connected to the upper inner wall of the ), and the lower ends of the overturning links (35) of the first gate adjustment mechanism (36) and the second gate adjustment mechanism (37) are respectively connected with the two overturning pieces of the overturning gate (12). The lower part of the inversion piece is hinged with the bottom of the inner mesh barrel (11), the lower part of the inversion link (35) is arranged in the inner mesh drum (11), and the inversion motor (32) It is fixed on the outer tank body (10) by means of a mounting rod. 10.按照权利要求1所述的一种煤炭自动浮沉试验装置,其特征在于:所述脱泥筛(1)的筛孔直径为0.5mm,所述外部槽体(10)的上部主槽体的长度L为700mm、宽度B为500mm、高度H为500mm。10. The automatic coal floating and sinking test device according to claim 1, characterized in that: the diameter of the screen hole of the desliming screen (1) is 0.5 mm, and the upper main tank body of the outer tank body (10) is 0.5 mm in diameter. The length L is 700mm, the width B is 500mm, and the height H is 500mm.
CN201820440840.3U 2018-03-29 2018-03-29 A kind of automatic float-sink test device of coal Expired - Fee Related CN208554574U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108435405A (en) * 2018-03-29 2018-08-24 西安科技大学 A kind of automatic float-sink test device of coal
CN116747996A (en) * 2023-07-06 2023-09-15 中国矿业大学 An automatic coal floating and sinking device and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108435405A (en) * 2018-03-29 2018-08-24 西安科技大学 A kind of automatic float-sink test device of coal
CN108435405B (en) * 2018-03-29 2023-07-14 西安科技大学 A Coal Automatic Floating and Sinking Test Device
CN116747996A (en) * 2023-07-06 2023-09-15 中国矿业大学 An automatic coal floating and sinking device and method

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