CN108405135A - A kind of CHARACTERISTICS OF TAILINGS SAND efficiently desilts shedding and particle shape optimization method and its device - Google Patents
A kind of CHARACTERISTICS OF TAILINGS SAND efficiently desilts shedding and particle shape optimization method and its device Download PDFInfo
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- CN108405135A CN108405135A CN201810091087.6A CN201810091087A CN108405135A CN 108405135 A CN108405135 A CN 108405135A CN 201810091087 A CN201810091087 A CN 201810091087A CN 108405135 A CN108405135 A CN 108405135A
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- sand
- tailings sand
- shedding
- powder
- counterpunch board
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/0012—Devices for disintegrating materials by collision of these materials against a breaking surface or breaking body and/or by friction between the material particles (also for grain)
- B02C19/0018—Devices for disintegrating materials by collision of these materials against a breaking surface or breaking body and/or by friction between the material particles (also for grain) using a rotor accelerating the materials centrifugally against a circumferential breaking surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/24—Passing gas through crushing or disintegrating zone
Abstract
A kind of CHARACTERISTICS OF TAILINGS SAND efficiently desilts shedding and particle shape optimization method and its device, is related to the shaping of CHARACTERISTICS OF TAILINGS SAND and desilts shedding, solves the problems, such as that current CHARACTERISTICS OF TAILINGS SAND can not efficiently use, including particle shape optimization, desilts shedding process.Particularly CHARACTERISTICS OF TAILINGS SAND forged iron first by stone, stable stone, stone-crash-stone in CHARACTERISTICS OF TAILINGS SAND particle swarm and reunion mud ball is broken up and sand grains local configuration shaping; classification separation is carried out to 0.075~0.045mm of critical grain size particles in CHARACTERISTICS OF TAILINGS SAND by the realization of tangential high-pressure blast; realize that shale object, mountain flour are detached with sand grains; the gas-solid fluid of powder containing mud and microlith powder realizes gas solid separation and thin powder recovery by dust pelletizing system; to realize making full use of for CHARACTERISTICS OF TAILINGS SAND, environmental protection.
Description
Technical field
The present invention relates to the shaping of CHARACTERISTICS OF TAILINGS SAND and shedding is desilted, specifically a kind of CHARACTERISTICS OF TAILINGS SAND efficiently desilts shedding and grain
Shape optimization method and its device.
Background technology
One of key component as concrete, sand play the role of filling, resistance to deformation in concrete product, can improve
Compactness, mechanical stability and the durability of concrete, are affected to concrete engineering quality.Relevant information shows, 2016
Year, China builds about 15,000,000,000 tons of sandstone total yield sales volume, wherein about 7,000,000,000 tons of sand total output.
Sand mainly has two class of natural sand and Machine-made Sand, and China's building quantity is huge, natural sand be mainly river sand, river sand,
Ovum sand under sea sand and flat land.By nearly 40 years high tension coal minings, high quality natural sand resource is gradually exhausted.Natural sand exploitation pair
River and soil ecology influence greatly, to administer and restore the period up to centuries, it is virtually impossible to the ecological water being restored to before exploitation
It is flat.Sea sand resources amount is larger, but since chlorion is exceeded, using sea sand by heavy corrosion concrete structure, in current technology water
Under flat, sea sand does not have utility value.Extensive natural sand exploitation also causes all kinds of safety accidents, quality accident to take place frequently, for this purpose, western
Square developed country just has compressed the exploitation scale of natural sand early in eighties of last century successively.China has also been gradually increased length in recent years
The inland rivers such as river, the Min River, Ganjiang River and coastal natural sand limit are adopted and taboo adopts dynamics.Currently, China's Machine-made Sand is mainly coarse sand, Machine-made Sand
Mass production techniques are still immature or production cost is excessively high.For this purpose, China's Practical Project mainly uses mechanism coarse sand in utilizing
The higher natural fine sand of the amount of powder containing mud of arranging in pairs or groups uses, and product quality fluctuation is larger.
CHARACTERISTICS OF TAILINGS SAND is the byproduct of production mechanism rubble, the nothing due to the factors such as clay content is high, grading is unreasonable, particle shape is poor
Method effectively substitutes natural sand.According to statistics, about 3,000,000,000 tons of CHARACTERISTICS OF TAILINGS SAND, Middle Eastern part are produced per year in the exploitation of China's building stone
Profit is rinsed with water Forming Mechanism coarse sand, partial alternative natural sand；Central and west regions CHARACTERISTICS OF TAILINGS SAND desilts technology not due to water shortage, dry method
The reasons such as maturation cause utilization ways limited, in primary discharge to natural environment.Therefore, the production of development CHARACTERISTICS OF TAILINGS SAND is alternative natural
Sand technology and complete Machine-made Sand equipment, can not only solve the problems, such as that current CHARACTERISTICS OF TAILINGS SAND can not efficiently use, but also can be in the mechanism of sand
Natural sand is substituted, to achieve the purpose that environmental protection.China's building sand total demand is bigger simultaneously, big using CHARACTERISTICS OF TAILINGS SAND
The high-quality Machine-made Sand of large-scale production is also the trend of China's building sandstone industry development.
Want the shale object and mountain flour being how in removing CHARACTERISTICS OF TAILINGS SAND primarily solved using CHARACTERISTICS OF TAILINGS SAND, reduces CHARACTERISTICS OF TAILINGS SAND
In water content, and local shaping is carried out to the sand grains in CHARACTERISTICS OF TAILINGS SAND.Dry method mechanism sand desilts pollen removing device and mainly borrows at present
The powder concentrator of cement industry, wherein moisture content of the raw material are generally less than 1%, are generally higher than less than 0.075mm fine powder content ratios
60%, simultaneously because feed particles grain size is small, abrasion is weaker, low, no shaping requirement is required wearability.Also someone discloses
Special dry method mechanism sand desilts pollen removing device.For example, patent CN201420347549.3 discloses a kind of artificial mechanism sand
Strength sieves sand shedding equipment, it is characterised in that including：Dynamic powder concentrator and static powder separating machine；The dynamic powder concentrator passes through flange
Connection is directly located on the babinet of static powder separating machine；The dynamic powder concentrator includes：Transmission device, rotor, fixed water conservancy diversion
Blade, first shell；The fixed guide vane is fixed on the first shell by multi-disc annular, and the rotor passes through in babinet
Bearing block be suspended；The rotor stretches out transmission shaft from the upper surface of first shell, and transmission shaft is by a shaft coupling and admittedly
The transmission device connection being scheduled on above first shell；The static powder separating machine includes：Second shell, stepped plate, water conservancy diversion air grid,
Granularity controls adjustment mechanism and turnover panel air valve；The stepped plate is fixed on the inside of second shell, in the stepped plate
Right side air inlet is equipped with water conservancy diversion air grid；Adjustment mechanism is controlled in the nethermost granularity that is equipped with of the stepped plate；Described
The bottom outlet port of two shells is equipped with turnover panel air valve.Patent CN200920073699.9 proposes a kind of shedding of Machine-made Sand
Equipment, including dedirt system, blow wind system and air draught dust-precipitating system three parts composition, dedirt system is rectangular in a cavity
It is equipped with two rows of bulk cargo grate plates in body shell, charging gear and doffer are respectively equipped in the upper and lower of the bulk cargo grate plate；Dedirt system
Unified side is connected by adjusting valve with hair-dryer air hose, and the other side is with air-introduced machine air hose also through adjusting valve unicom, air-introduced machine wind
The pipe other end is connected with cyclone；Air intake cover is equipped at the hair-dryer air hose and dedirt system connectivity；Draw described
Outlet housing is equipped at wind turbine air hose and dedirt system connectivity.Patent CN201710557326.8 discloses a kind of automatic shedding sand
Machine, containing shell, holder, feed hopper and rotor assembly, shell is arranged on holder, and rotor assembly includes main shaft, axle sleeve, material casting
Rotor and motor, main shaft are arranged on axle sleeve, and axle sleeve setting is central inside housings, and material casting rotor is arranged in the upper end of main shaft
On, the lower end of main shaft is equipped with belt wheel, and motor is located at the outside of shell and is arranged on holder, and motor passes through belt wheel and belt and master
The lower end of axis is connected equipped with belt wheel, and the inner wall of upper part of the housing is equipped with abrasion-resistant lining plate, and the abrasion-resistant lining plate is corresponding with material casting rotor,
The inner wall at the middle part of shell is equipped with intermediate abrasion-resistant lining plate, and the lower part of shell is the cone that gathers materials, and feed hopper is located at the top of shell,
It is characterized in that, also contains cyclone dust collectors, fan blade and ventilator cowling, fan blade is arranged on the top of the main shaft, and fan blade is located at institute
It states between material casting rotor and axle sleeve, ventilator cowling is installed on the outside of the main shaft, and the upper port of ventilator cowling is located at the lower section of fan blade,
The housing side is equipped with air outlet, and cyclone dust collectors include that cylinder, lower cone and air inlet helical pipe, lower cone are arranged in cylinder
The side of the lower end of body, cylinder is equipped with blast pipe, and air inlet helical pipe is arranged on the inner wall of cylinder, enters the wind helical pipe
Air inlet and the blast pipe of cylinder side interlink, and the blast pipe of cylinder side is communicated with the housing side equipped with air outlet
Even, the air outlet for entering the wind helical pipe is located at the top of lower cone, and the side of cylinder is equipped with discharge pipe, and the outlet of the discharge pipe is worn
The side for crossing shell and ventilator cowling interlinks.In summary patent is mainly shown as：1, method and strength point are broken up by static state
Realize that sand grains desilts shedding from method；2, method realization mechanism sand is broken up using static state and desilts shedding, pass through dynamic powder concentrator machine
Control recycling grain size；3, it is based on cement industry rotor type powder sorter, have no basis mud powder and sand between rotating cage and inner walls
Grain feature specially considers cutting and the runner design of the waste gas stream of powder containing mud and sand grains stream, meanwhile, sand grains shaping feature is not carried out
Special design, also carries out the anti-wear design of rotor blade not based on the strong abrasiveness of sand grains.
Therefore, CHARACTERISTICS OF TAILINGS SAND dry-method sand manufacturing in China's is technical at present, and still lacking one kind, there is dynamic high efficiency to break up CHARACTERISTICS OF TAILINGS SAND, energy
It is enough be repeated several times it is dynamic carry out sand grains and mud powder cutting separation, equipped with according to mud powder and sand grains feature the waste gas stream of powder containing mud and
The special runner of sand grains stream, the integrated process design and related device for carrying out shaping to sand grains when CHARACTERISTICS OF TAILINGS SAND desilts shedding.
Invention content
The invention is intended to provide a kind of CHARACTERISTICS OF TAILINGS SAND efficiently to desilt shedding and particle shape optimization method and its device, pass through this method
And device, mud substance and the mountain flour in CHARACTERISTICS OF TAILINGS SAND can be effectively removed, and profile shaping is carried out to sand grains, reach machine
Sand processed uses standard, achievees the purpose that environmental protection to efficiently use CHARACTERISTICS OF TAILINGS SAND.
The technical solution adopted by the present invention to solve the technical problems is：A kind of CHARACTERISTICS OF TAILINGS SAND efficiently desilts shedding and particle shape is excellent
Change method, characterized in that the raw material of use is mainly CHARACTERISTICS OF TAILINGS SAND, and wherein CHARACTERISTICS OF TAILINGS SAND water content is less than 4%, also contains in CHARACTERISTICS OF TAILINGS SAND
Mud powder and microlith powder and mud ball, wherein mud powder and microlith powder total content be less than 15%, grain size and be less than 0.075mm, mud ball contains
Amount is more than 0.075mm less than 5%, grain size；Specifically include following steps：
Step 1：Particle shape optimizes
1) CHARACTERISTICS OF TAILINGS SAND is poured into spreading disk by feed inlet, in high-speed rotating spreading disk by CHARACTERISTICS OF TAILINGS SAND to be not less than
The linear velocity centrifugal of 10m/s is spread out, and CHARACTERISTICS OF TAILINGS SAND is splashed to the counterpunch board for covering on spreading disk periphery under the influence of centrifugal force
On, realize that mud ball, reunion silt particle, microlith powder are broken up by collision effect；
2) sand grains after being rebounded by counterpunch board bumps against at a high speed the rotation for being not less than 150 revs/min below spreading disk again
On the shock plate of speed, further realizes mud ball, reunion silt particle, microlith powder and break up；
3) counterpunch board sand grains is flown in the shock plate impact rotated and the sand grains of counterpunch board rebound collides, and further realizes mud
Ball, reunion silt particle, microlith powder are broken up；
4) during 1,2,3 more than, 90% or more the mud ball more than 0.075mm is dispersed as the powdery less than 0.075mm,
Sand grains forged iron with the sand grains group in fixed counterpunch board, high-speed rotating beater plate, high-speed flight by stone, stone-crash-stone and stable
Stone realizes that local configuration shaping, sand grains are more mellow and fuller；
Step 2：Desilt shedding
1) cylinder lower tangential is equipped with air inlet, during step 1, air stream by lower from above blowing into inside rotating cage,
It flows down the gap between rotating cage shock plate and the counterpunch board of rotating cage external stability in rotating cage centrifugation force effect, forms high-pressure blast
Stream, is based on gravity separation principle, and process sand grains, shale object, mountain flour are classified and are detached to above-mentioned 1), 2), 3), medium and small
It is not less than 85% in the mud powder and microlith powder separating effect of 0.075mm；
2) high-pressure blast of the powder containing mud tangentially realizes gas solid separation, mud by air duct into outflow tube into duster system
Powder enters special mud powder cabin, and sand grains is directly entered the sand warehouse of cylinder lower part because of dead weight reason in cylinder.
A kind of CHARACTERISTICS OF TAILINGS SAND efficiently desilts device used in shedding and particle shape optimization method, characterized in that including cylinder, sand
The upper end centre of storehouse, mud powder cabin, cyclone dust collectors, shock plate and counterpunch board, cylinder is equipped with feed inlet, and the lower end of cylinder is equipped with out
Material mouth, discharge port lower part are connected with sand warehouse；Inner barrel upper vertical direction is equipped with a rotating cage main shaft along central axis, on main shaft
A round spreading disk is fixed at end, and spreading disk lower part is fixed with multiple shock plates around main shaft in a ring, in cylinder inboard wall and turns
The counterpunch board of stationary annular is gone back between cage from top to bottom；Tangent air inlet is equipped on barrel below cylinder, above sand warehouse,
There is air duct to be connected with air inlet outside barrel；The outside of cylinder is equipped with and is removed with what the tangential air-out passage of cylinder top periphery was connected
Dirt device.
To improve CENTRIFUGAL ACCELERATING effect of the rotating cage to air inlet, the shock plate is low with the angle in tangent to periphery direction of rotating cage
In 90 ° of angles；Shock plate from top to bottom, diameter have it is small arrive the more layered arrangements of big echelon, the number of plies is no less than 2 layers；The shock plate
For bar shaped thickening plate, the narrow side up and down of shock plate is movable to be fixed on rotating cage so that shock plate can may wear to not in working face
When energy satisfaction desilts shedding efficiency, removes and overturn 180 ° fixed on rotating cage, the reverse side of shock plate is made to become working face.
The counterpunch board relies on barrel support arrangement, counterpunch board polyhedron to be in a ring arranged from top to bottom not around rotating cage
The ascending counterpunch board layer polyhedral in a ring of diameter less than 2 layers, each layer counterpunch board layer vertical direction pass through diameter difference
It is different mutually nested, longitudinal air duct from bottom to top is reserved, counterpunch board is plank, and multiple counterpunch boards are surround centered on rotating cage and surrounded
One layer of polyhedron, upper layer and lower layer polyhedron, upper layer polyhedron diameter is small, lower layer's polyhedron diameter is big, upper layer and lower layer polyhedron office
Portion is overlapped, and the space that two polyhedron diameter differences are formed is air duct, air duct draught capacity ensure the air-flow of powder containing mud from it is lower to
Upper non-resistance passes through；The high abrasion for adapting to sand grains, improves the utilization rate of counterpunch board, counterpunch board is fixed on cylinder by horizontal stand
On internal wall, counterpunch board with horizontal stand using the mode that is detachably fixed, counterpunch board working face may wear to cannot meet desilt it is de-
It when powder efficiency, removes, overturn 180 ° and be fixed on barrel again by support beam, the reverse side of counterpunch board becomes working face.
The beneficial effects of the invention are as follows：By the above method in CHARACTERISTICS OF TAILINGS SAND mud ball, reunion silt particle, microlith powder is into action
Power is broken up, forged iron by stone, stable stone, stone-crash-stone in CHARACTERISTICS OF TAILINGS SAND sand grains carry out local configuration shaping, pass through tangential high pressure
Wind is realized to be detached to being less than 0.075mm grain size mud powder and mountain flour and sand grains progress particle in CHARACTERISTICS OF TAILINGS SAND, the mud powder after separation and stone
Powder enters deduster with high-pressure blast stream and realizes gas solid separation.
Description of the drawings
Fig. 1 apparatus structure schematic diagrams,
Fig. 2 rotating cage front views,
Fig. 3 rotating cage vertical views,
Fig. 4 counterpunch board front views,
Fig. 5 counterpunch board vertical views,
Fig. 6 granule-morphologies intuitively compare.
In figure, 1 cylinder, 2 sand warehouses, 3 mud powder cabins, 4 dedusters, 5 shock plates, 6 counterpunch boards, 7 feed inlets, 8 discharge ports, 9 water
Flat holder, 10 rotating cage main shafts, 11 spreading disks, 12 rotating cages, 13 air inlets
Specific implementation mode
With reference to specific embodiment, the present invention is described further.
Embodiment one
Zhenjiang enterprise sandstone produces 300000 tons of 0-5mm CHARACTERISTICS OF TAILINGS SANDs per year, exceeded due to containing mud powder, cannot effectively substitute natural sand
For concrete material.In April, 2017, identical CHARACTERISTICS OF TAILINGS SAND sample, when moisture content difference, passed through V-type powder concentrator and this method dress
It sets and desilt shedding experiment, as a result as shown in Table 1 and Table 2.When tailing water-containing rate is relatively low, V-type powder concentrator and we
Although subtraction unit desilts shedding effect and can be processed into CHARACTERISTICS OF TAILINGS SAND qualified Machine-made Sand, but to desilt effect more preferable for the present apparatus.When
When tailing water-containing rate is relatively high, V-type powder concentrator desilts effect and declines rapidly, and our subtraction unit remains to CHARACTERISTICS OF TAILINGS SAND being processed into
Qualified Machine-made Sand.By comparison, which has selected this method and has desilted pollen removing device.It completes installation in July, 2017 and adjusts
Examination, the sampling inspection results of in August, 2017 are as shown in table 3, and system realizes CHARACTERISTICS OF TAILINGS SAND and efficiently desilts shedding effect, while product grain
Shape obtains a degree of optimization, as shown in the figure.Currently, 120 tons of the device throughput per hour, installed power 37kw, main shaft turn
Fast 250r/min, the outlet exhaust gas of powder containing mud pass through sack cleaner, operation air quantity 50000m3/ hour, installed power 75kw.It is comprehensive
Close single ton for the treatment of capacity power consumption 0.96kw.
Table experimental conditions in April, 1,2017 (one)
Table experimental conditions in April, 1,2017 (two)
The table part operating condition of in August, 2,2017
Claims (4)
1. a kind of CHARACTERISTICS OF TAILINGS SAND efficiently desilts shedding and particle shape optimization method, characterized in that the raw material of use is mainly CHARACTERISTICS OF TAILINGS SAND,
Middle CHARACTERISTICS OF TAILINGS SAND water content is less than 4%, and the mud powder and microlith powder and mud ball, wherein mud powder and microlith powder also contained in CHARACTERISTICS OF TAILINGS SAND is total
Content is less than 15%, grain size and is less than 0.075mm, and mud ball content is less than 5%, grain size and is more than 0.075mm；Specifically include following step
Suddenly：
Step 1：Particle shape optimizes
1) CHARACTERISTICS OF TAILINGS SAND is poured into spreading disk by feed inlet, in high-speed rotating spreading disk by CHARACTERISTICS OF TAILINGS SAND to be not less than 10m/s
Linear velocity centrifugal spread out, CHARACTERISTICS OF TAILINGS SAND is splashed under the influence of centrifugal force on the counterpunch board for covering on spreading disk periphery, lead to
It crosses collision effect and realizes that mud ball, reunion silt particle, microlith powder are broken up；
2) sand grains after being rebounded by counterpunch board bumps against at a high speed on the shock plate below spreading disk again, and the speed of shock plate rotation is not
Less than 150 revs/min, further realizes mud ball, reunion silt particle, microlith powder and break up；
3) sand grains of counterpunch board is flown in the shock plate impact rotated and the sand grains of counterpunch board rebound collides, and further realizes mud
Ball, reunion silt particle, microlith powder are broken up；
4) during 1,2,3 more than, 90% or more the mud ball more than 0.075mm is dispersed as the powdery less than 0.075mm, sand grains
Forged iron by stone with the sand grains group in fixed counterpunch board, high-speed rotating beater plate, high-speed flight, stone-crash-stone and stable stone it is real
Current situation contouring shaping, sand grains are more mellow and fuller；
Step 2：Desilt shedding
1) cylinder lower tangential is equipped with air inlet, and during step 1, air stream, from above blowing into inside rotating cage, is being turned by lower
Cage centrifugation force effect flows down the gap between rotating cage shock plate and the counterpunch board of rotating cage external stability, and it is distinguished and admirable to form high pressure, base
In gravity separation principle, process sand grains, shale object, mountain flour are classified and are detached to above-mentioned 1), 2), 3), wherein being less than
The mud powder and microlith powder separating effect of 0.075mm is not less than 85%；
2) high-pressure blast of the powder containing mud is by the tangential outflow tube in air duct, into duster system, realizes that gas solid separation, mud powder enter
Special mud powder cabin, and sand grains is directly entered the sand warehouse of cylinder lower part because of dead weight reason in cylinder.
2. a kind of CHARACTERISTICS OF TAILINGS SAND according to claim 1 efficiently desilts device used in shedding particle shape optimization method, special
Sign is, including cylinder, sand warehouse, mud powder cabin, cyclone dust collectors, shock plate and counterpunch board, and feed inlet is equipped among the upper end of cylinder,
The lower end of cylinder is equipped with discharge port, and discharge port lower part is connected with sand warehouse；Inner barrel upper vertical direction is equipped with along central axis
One rotating cage main shaft, main shaft upper end are cased with spreading disk, and spreading disk lower part is fixed with multiple shock plates around main shaft in a ring；With cylinder
Inner wall is supporting point, is further fixed on counterpunch board from top to bottom between cylinder inboard wall and rotating cage, and multiple counterpunch boards surround a ring
Shape；It is equipped with tangent air inlet on barrel below cylinder, above sand warehouse, has air duct to be connected with air inlet outside barrel；Cylinder
The outside of body is equipped with the deduster being connected with the tangential air-out passage of cylinder top periphery.
3. a kind of CHARACTERISTICS OF TAILINGS SAND according to claim 2 efficiently desilts device used in shedding particle shape optimization method, special
Sign is, to improve CENTRIFUGAL ACCELERATING effect of the rotating cage to air inlet, the angle in the tangent to periphery direction of the shock plate and rotating cage is less than
90 ° of angles；Shock plate from top to bottom, the more layered arrangements of the ascending echelon of diameter, the number of plies is no less than 2 layers；The shock plate is
Bar shaped thickening plate, the narrow side up and down of shock plate is movable to be fixed on rotating cage so that shock plate can may wear in working face cannot
When satisfaction desilts shedding efficiency, removes and overturn 180 ° fixed on rotating cage, the reverse side of shock plate is made to become working face.
4. a kind of CHARACTERISTICS OF TAILINGS SAND according to claim 2 efficiently desilts device used in shedding particle shape optimization method, special
Sign is that the counterpunch board is plank, relies on barrel support arrangement, multiple counterpunch boards to combine polyhedron in a ring around rotating cage, from
The ascending counterpunch board layer polyhedral in a ring of the upper and lower diameter for being arranged no less than 2 layers, each layer counterpunch board layer Vertical Square
To, reserved longitudinal air duct from bottom to top mutually nested by diameter difference；Counterpunch board is fixed on by horizontal stand in cylinder
On wall, for counterpunch board with horizontal stand using the mode that is detachably fixed, counterpunch board working face, which may wear to meet, desilts shedding effect
It when rate, removes, overturn 180 ° and be fixed on barrel again by support beam, the reverse side of counterpunch board becomes working face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810091087.6A CN108405135B (en) | 2018-01-30 | 2018-01-30 | Efficient mud and powder removing and particle shape optimizing method and device for tailing sand |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810091087.6A CN108405135B (en) | 2018-01-30 | 2018-01-30 | Efficient mud and powder removing and particle shape optimizing method and device for tailing sand |
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| CN108405135A true CN108405135A (en) | 2018-08-17 |
| CN108405135B CN108405135B (en) | 2020-05-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109051375A (en) * | 2018-09-14 | 2018-12-21 | 江苏山宝集团有限公司 | A kind of big hopper of folding |
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| CN2748191Y (en) * | 2004-11-25 | 2005-12-28 | 海城北方环保矿山机械有限公司 | Combined type powder selector |
| CN203494599U (en) * | 2013-09-04 | 2014-03-26 | 福建南方路面机械有限公司 | Impact crusher |
| KR20140145877A (en) * | 2013-06-14 | 2014-12-24 | 주식회사 리텍 | Recycling sand production dry type system |
| CN206008966U (en) * | 2016-08-16 | 2017-03-15 | 上海西芝矿山工程机械有限公司 | A kind of gumming room and sand system processed |
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|---|---|---|---|---|
| CN86108387A (en) * | 1986-12-13 | 1988-06-08 | 国家建筑材料工业局科学技术开发服务中心 | propeller type centrifugal powder selecting machine |
| EP0349490A1 (en) * | 1988-07-01 | 1990-01-03 | Aspa Zürich Ag | Method and device for preparing granulates |
| CN2748191Y (en) * | 2004-11-25 | 2005-12-28 | 海城北方环保矿山机械有限公司 | Combined type powder selector |
| KR20140145877A (en) * | 2013-06-14 | 2014-12-24 | 주식회사 리텍 | Recycling sand production dry type system |
| CN203494599U (en) * | 2013-09-04 | 2014-03-26 | 福建南方路面机械有限公司 | Impact crusher |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109051375A (en) * | 2018-09-14 | 2018-12-21 | 江苏山宝集团有限公司 | A kind of big hopper of folding |
| CN109051375B (en) * | 2018-09-14 | 2023-11-24 | 江苏山宝集团有限公司 | Foldable large hopper |
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| CN108405135B (en) | 2020-05-19 |
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