CN104258938B - Tandem continuous ball mill and ball milling method - Google Patents

Tandem continuous ball mill and ball milling method Download PDF

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Publication number
CN104258938B
CN104258938B CN201410560033.1A CN201410560033A CN104258938B CN 104258938 B CN104258938 B CN 104258938B CN 201410560033 A CN201410560033 A CN 201410560033A CN 104258938 B CN104258938 B CN 104258938B
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ball
level
ball grinder
grades
grinders
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CN104258938A (en
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肖凤军
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Guangdong Eding Industrial Co Ltd
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Shandong Dinghuineng Technology Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/10Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18Details
    • B02C17/183Feeding or discharging devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18Details
    • B02C17/183Feeding or discharging devices
    • B02C17/1835Discharging devices combined with sorting or separating of material
    • B02C17/184Discharging devices combined with sorting or separating of material with separator arranged in discharge path of crushing zone
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18Details
    • B02C17/22Lining for containers

Abstract

A kind of tandem continuous ball mill and ball milling method, belong to the ceramic product plant-scale equipment and ball-milling technology technical field. Feeding device (1) is connected with one-level ball grinder (4) feed end, two grades of ball grinders (7) have the multiple of series connection, the length of one-level ball grinder (4) is 1.5 ~ 3 times of one two grades ball grinder (7) length, and the inner chamber of one-level ball grinder (4) has the tapering reduced gradually from feed end to discharge end diameter. Tandem continuous ball mill can adapt to the material of different size, and discharge method is changed into by traditional overflow and carries stream; In ball milling method, varigrained material adds targetedly, the rear coupling device (3) that directly passes through of material slurryization that granularity is 0.5 ~ 15mm joins in two grades of ball grinders (7), granularity be 0.1 ~ 0.5mm material slurryization after directly joined in end secondary ball grinder (7) by coupling device (3), substantially increase mill efficiency.

Description

Tandem continuous ball mill and ball milling method
Technical field
Tandem continuous ball mill and ball milling method, belong to the ceramic product plant-scale equipment and ball-milling technology technical field. Also can be used for the ball milling of other clay series products needing ball milling.
Background technology
The monomer that is generally used in continuous ball mill existing market grinds and multi-section serial formula continuous ball mill continuously, the object of continuous ball mill is to improve output, go out to improve continuous ball milling output under the granularity requirements of ore deposit same, the way generally adopted lengthens to strengthen ball grinder, owing to material is tending towards the reason of level and flow direction of material, there will be grinding ball medium more than one one few problem when ball grinder is crossed long, also there will be the problem that material size particles mixes simultaneously. in addition, the discharge method of existing continuous ball mill mostly adopts overflow manner discharging, and overflow discharging must make the liquid level in tank body higher than discharge port, due to the impact of slip buoyancy, liquid level in tank body is more high, the grinding effect of grinding ball medium is more low, owing to opening for feed and discharge outlet are on same bar axis, if when tank body is level, while slip overflows to discharge port, also can overflow at opening for feed, resistance will be caused like this to charging, also the mixed effect of charging with grinding ball medium can be affected, so there being a lot of continuous ball mill to adopt the installation mode of high in and low out, namely opening for feed is higher than discharge port, this kind of mode also there will be grinding ball medium more than one one few situation in tank body, grinding effect can be made to have a greatly reduced quality. multi-section serial formula continuous ball mill due to series connection tank body size length consistent, its length is all between 5-8 rice, when the oversize material of clay class is ground, have that first segment ball milling output is low, the problem of not discharging, the way adopted at present carries out continuous ball milling again after block material being worn into slurry with intermittent ball mill before continuous ball milling, does not have the continuous ball milling of the realization of real meaning like this.
Chinese utility model patent ZL200920064172.X discloses a kind of sectional type wet process continuous ball mill used for ceramics, it is incorporated into one by being connected in series with working chamber by array drive unit, each working chamber is fixed on respective drive unit through bearing support, the input terminus of working chamber establishes material input control device, establishing grinding ball medium and wear-resistant liner in its chamber, the output terminal of working chamber sets out materials device. This practicality is novel, and to overcome existing pottery ball milling device structure huge, complicated, and production efficiency is low, unstable product quality, the defect of controllability difference. This practical novel Problems existing has: adopt overflow manner discharging, and slip also can overflow from feed end while overflowing from discharge end; First step ball milling output is low, cannot meet the turnout of ball grinder below; Cannot realize under non-stop-machine prerequisite the adding materials and grinding ball medium at regular time and quantity of working chamber below.
Summary of the invention
The problem to be solved in the present invention is: overcome the deficiencies in the prior art, it is provided that a kind of can adapt to the different material of size, the slurry-outlet quantity of first step ball grinder can meet the turnout of ball grinder below, can realize not shutting down the tandem continuous ball mill and the ball milling method that add material and grind ball medium.
The technical solution adopted for the present invention to solve the technical problems is: this tandem continuous ball mill, it is characterized in that: comprise feeding device, one-level ball grinder, two grades of ball grinders and drawing mechanism, feeding device is connected with one-level ball grinder feed end, two grades of ball grinders have the multiple of series connection, one-level ball grinder is connected by coupling device with adjacent two grades of ball grinders, it is connected by coupling device between two grades of adjacent ball grinders, one-level ball grinder and each two grades of equal individual drive of ball grinder, the discharge end of two grades of ball grinders of end is connected with drawing mechanism, the length of one-level ball grinder is 1.5 ~ 3 times of two grades of ball grinder length, the inner chamber of one-level ball grinder has the tapering reduced gradually from feed end to discharge end diameter. the length of one-level ball grinder is generally 12m, and the length of two grades of ball grinders is generally 6m, tandem continuous ball mill can determine the progression of two grades of ball grinders according to the difference of grinding material, the link of interval ball milling must be carried out before decreasing the continuous ball milling of current domestic employing, ensure that the slurry-outlet quantity of first step ball grinder meets the turnout of ball grinder below, the tapering of the inner chamber of one-level ball grinder is possible to prevent the problem that big grinding ball medium moves the material size particles caused and mixes with flow direction of material.
Preferably, described one-level ball grinder comprises one-level tank body, charging end cap and crusher discharge end cover, and charging end cap is fixed on one-level tank body front end, and crusher discharge end cover is fixed on one-level tank body rear end, one-level tank body terminus inner arranges and carries stream filtration unit, and one-level inner tank wall is inlayed one-level ceramic lining plate.
Preferably, described one-level ceramic lining plate inwall is provided with helical raised, and the rotation direction of helical raised is contrary with turning to of one-level tank body. Helical raised while grinding ball medium affects by charging and to move to discharge end, constantly can be sent to feed end is counter grinding ball medium.
Preferably, described stream filtration unit of carrying comprises and carries stream dish and rubber sieve plate, putting forward stream dish profile is the horizontal funnel-form put, interior portion is slit into multiple every storehouse, the osculum carrying stream dish is discharge port, big mouth is opening for feed, rubber sieve plate is fixed on the opening for feed place carrying stream dish, and the sieve aperture of slip on rubber sieve plate enters the opening for feed carrying stream dish. Carrying stream filtration unit the discharge method of ball grinder to be changed into by traditional overflow carry stream, the liquid level in ball grinder can control in required position.
Preferably, the length of described one-level ball grinder is 12 ~ 15m, and the length of two grades of ball grinders is 5 ~ 8m.
Preferably, described feeding device comprises hopper, U shape bucket and step-down gear, hopper is fixed on the upper side opening place of U shape bucket, hopper is connected with U shape bucket, the side of U shape bucket is connected the feed end of one-level ball grinder by feeding device feeding tube, being provided with screw shaft in U shape bucket and feeding device feeding tube, screw shaft is provided with screw-blade, and step-down gear is connected with screw shaft by transmission shaft. Feeding device endlessly for tandem continuous ball mill provides material in working process, and can supplement grinding ball medium for one-level ball grinder.
Preferably, described feeding device feeding tube outer sheath has one to water drum, feeding device feeding tube and give and form an annular feedwater passage between water drum, feedwater passage end is closed, the other end is connected with the feed end of one-level ball grinder, to water drum is offered with feedwater channel connection give water hole.
Preferably, described coupling device comprises coupling device feeding tube and rear-fed mouth, coupling device feeding tube front end is fixed on one-level ball grinder or the discharge end of two grades of ball grinders, rear-fed mouth fixes the feed end being connected two grades of adjacent ball grinders, and coupling device feeding tube posterior rotation stretches in rear-fed mouth; Coupling device feeding tube rear outside is provided with screw-blade, and at screw-blade arranged outside outer cover, outer cover is fixedly connected with rear-fed mouth, and outer cover is provided with filling tube. Coupling device can be the slip that two grades of ball grinders supplement grinding ball medium and composite grain requirement in non-stop-machine situation, ensure that the continuity that tandem continuous ball mill works.
Preferably, described drawing mechanism comprises drawing mechanism feeding tube and U-shaped hopper, drawing mechanism feeding tube is fixed on the discharge end of end secondary ball grinder, drawing mechanism feeding tube rotates and stretches in U-shaped hopper, U-shaped hopper is fixed on the discharge end of end secondary ball grinder by a circle pipe, arranges discharging pipe bottom U-shaped hopper end.
Utilize the ball milling method of above-mentioned tandem continuous ball mill as follows:
First add grinding ball medium in each ball grinder, and add materials in one-level ball grinder;
Rotate one-level ball grinder and each two grades of ball grinders;
Start feeding device, to adding materials in one-level ball grinder and grind ball medium by feeding device;
Granularity be 0.5 ~ 15mm material slurryization after directly join in two grades of ball grinders by coupling device, granularity be 0.1 ~ 0.5mm material slurryization after directly join in end secondary ball grinder by coupling device;
Discharged by the drawing mechanism of end through ground material.
Compared with prior art, the useful effect that the tandem continuous ball mill of the present invention and ball milling method have is:
1, the present invention can determine ball grinder progression according to the difference of grinding material, the first step ball grinder lengthened can extend the milling time of material in tank body and process, the link of interval ball milling must be carried out before decreasing the continuous ball milling of current domestic employing, achieve continuous ball milling truly, and ensure that the slurry-outlet quantity of first step ball grinder meets the turnout of ball grinder below; The tapering of the inner chamber of one-level ball grinder is possible to prevent the problem that big grinding ball medium moves the material size particles caused and mixes with flow direction of material.
2, ceramic embedded liner plate in the tank body of ball grinder, compared to rubber liner, the grinding effect of ceramic lining plate better, more wear-resisting, mill efficiency is higher, it may also be useful to the life-span is longer; The helical raised that inwall is arranged while grinding ball medium affects by charging and to move to discharge end, constantly can be sent to feed end is counter grinding ball medium, the grinding ball medium of feed end constantly compensated.
3, the discharge end of every grade of ball grinder carries stream dish and rubber sieve plate, by the Liquid level in ball grinder at ideal position, can reduce slip to the buoyancy of grinding ball medium, thus improve the integral pressure of grinding ball medium in ball milling tank, it is to increase mill efficiency; The use of rubber sieve plate, can make every grade of ball grinder can both obtain the slip of desired particle size.
4, coupling device can realize not shutting down and add grinding ball medium at regular time and quantity, thus its working efficiency and grinding effect are significantly improved.
5, the ball milling unit of many group individual drive is in series by coupling device, eliminates charging and discharging time completely, compact overall structure, and floor space is little, and manning is few, level of automation height, it may also be useful to the life-span is long, and product final cost obviously reduces.
6, each ball grinder only needs a power small electric machine and does not need to start simultaneously, therefore greatly reduce electrical network capacity and to the impact of electrical network, equipment investment kind reduces. Solve traditional pottery continuous type ball mill to adopt two high-power mair motor and must start simultaneously, electrical network is impacted problem big especially.
7, materials different for globule size is joined in corresponding ball grinder, avoid the little material of granularity particle in the ball grinder that grinding ball medium is bigger and substantially do not obtain grinding the situation of refinement, substantially increase working efficiency.
Accompanying drawing explanation
Fig. 1 is the front view of tandem continuous ball mill.
Fig. 2 is the vertical view of tandem continuous ball mill.
Fig. 3 is ball grinder structural representation.
Fig. 4 is the structural representation of feeding device.
Fig. 5 is the front view of transmission mechanism.
Fig. 6 is the vertical view of transmission mechanism.
Fig. 7 is the structural representation of coupling device.
Fig. 8 is the structural representation of drawing mechanism.
Wherein: 1, feeding device 101, roller shaft 102, support 103, cycloidal planetary gear speed reducer 104, transmission shaft 105, U shape bucket 106, hopper 107, feeding device feeding tube 108, graphite packing 109, screw shaft 110, to water drum 2, transmission mechanism 201, pinion(gear) 202, step-down gear 203, motor 3, coupling device 301, coupling device feeding tube 302, upper outer cover 303, filling tube 304, lower outer cover 305, rear-fed mouth 306, screw-blade 4, one-level ball grinder 401, carry stream dish 402, manhole 403, manhole plate 404, one-level tank body 405, one-level ceramic lining plate 5, installation foundation 6, drawing mechanism 601, drawing mechanism feeding tube 602, U-shaped hopper 7, two grades of ball grinders.
Embodiment
Fig. 1 ~ 8 are one embodiment of the present of invention, the tandem continuous ball mill of the present invention and ball milling method are described further below in conjunction with accompanying drawing 1 ~ 8.
Tandem continuous ball mill comprises feeding device 1, one-level ball grinder 4, coupling device 3, two grades of ball grinders 7, transmission mechanism 2 and drawing mechanism 6, every grade of one-level ball grinder 4 and every grade of two grades of ball grinders 7 arrange independent transmission mechanism 2 respectively, feeding device 1 is connected with the feed end of one-level ball grinder 4, it is connected by coupling device 3 between one-level ball grinder 4 and adjacent two grades of ball grinders 7, two grades of ball grinders 7 have the multiple of series connection, being connected by coupling device 3 between two grades of adjacent ball grinders 7, the discharge end of two grades of ball grinders 7 of end is connected with drawing mechanism 6; The length of one-level ball grinder 4 is 1.5 ~ 3 times of two grades of ball grinder 7 length, and the inner chamber of one-level ball grinder 4 has the tapering reduced gradually from feed end to discharge end diameter. Feeding device 1, one-level ball grinder 4, coupling device 3, two grades of ball grinders 7, transmission mechanism 2 and drawing mechanism 6 are fixed on the installation foundation 5 of Steel Concrete position according to the rules.
Embodiment 1
Such as Fig. 1, shown in 2: feeding device 1 is an individual drive unit, it is in whole tandem continuous ball mill foremost, one-level ball grinder 4 and independent gear 2 form the ball milling unit of one-level band individual drive, two grades of ball grinders 7 and independent gear 2 form the ball milling unit of two grades of band individual drive, feeding device feeding tube 107 is inserted in the charging end cap of the one-level ball grinder 4 of ball mill, it is connected by coupling device 3 between one-level ball grinder 4 and adjacent two grades of ball grinders 7, two grades of ball grinders have three grades, it is connected by coupling device 3 between two grades of adjacent ball grinders 7, coupling device 3 is responsible in non-stop-machine situation to add grinding ball medium and slip to two grades of ball grinders 7, drawing mechanism 6 is positioned at the discharge end of two grades of ball grinders 7 of end, it is responsible for slip to the position discharge of regulation. feeding device 1, one-level ball grinder 4, coupling device 3, two grades of ball grinders 7, transmission mechanism 2 and drawing mechanism 6 all according to the rules position relation be arranged on the installation foundation 5 of Steel Concrete.
As shown in Figure 3: the length of one-level ball grinder 4 is 12m, one-level tank body 404 two ends of one-level ball grinder 4 arrange tank flange respectively, one-level tank body 404 has a manhole 402, the main effect of manhole 402 is convenient to safeguard and clear up one-level tank body 404 in time, and the manhole plate 403 that manhole 402 is bolted on one-level tank body 404 outer wall seals. One-level tank body 403 feed end is the charging end cap being bolted on tank flange, and discharge end is the crusher discharge end cover being bolted on tank flange; One-level tank body 404 feed end has the master wheel dish being bolted on feed end tank flange, and master wheel dish and one-level tank body 404 are arranged on the same axis, in case one-level tank body 404 produces bigger vibrations during work. One-level tank body 404 inwall inlays one-level ceramic lining plate 405, and one-level ceramic lining plate 405 arranges the helical raised around inwall, and the rotation direction of helical raised is contrary with turning to of one-level ball grinder 4; The inner chamber of one-level ball grinder 4 has the tapering reduced gradually from feed end to discharge end diameter. Charging end cap and crusher discharge end cover inwall inlay rubber liner respectively, crusher discharge end cover inwall is bolted and carries stream dish 401, putting forward stream dish 401 profile is the horizontal funnel-form put, interior portion is slit into multiple sector every storehouse, carrying stream dish 401 osculum is discharge port, big mouth is opening for feed, rubber sieve plate is bolted on the opening for feed carrying stream dish 401, the sieve aperture of slip on rubber sieve plate enters the opening for feed carrying stream dish 401, slip can be carried out filtering screening by rubber sieve plate, makes every grade of ball grinder can both obtain the slip of desired particle size. Installing main bearing babbitting jig respectively on charging end cap and crusher discharge end cover, main bearing babbitting jig is arranged in main shaft bearing, and one-level ball grinder 4 installs location mainly through main bearing babbitting jig and main shaft bearing.
The length of two grades of ball grinders 7 is 6m, and the inwall of two grades of ball grinders 7 inlays common two grades of circular liner plates, and the inner chamber of two grades of ball grinders 7 is cylinder shape, and remaining shape, structure and assembling mode are such as one-level ball grinder.
Carrying stream filtration unit can also be that waterwheel pattern carries stream dish, carries the side fixing rubber sieve plate of stream dish away from crusher discharge end cover.
As shown in Figure 5,6: motor seat is positioned at the most right-hand member of whole transmission mechanism 2, it it is the motor 203 being bolted above motor seat, the output shaft of motor 203 is connected with step-down gear 202 input shaft by little pin coupler, step-down gear 202 is bolted on reducer pedestal, reducer pedestal is bolted on the installation foundation 5 of Steel Concrete, and the output shaft of step-down gear 202 is connected with one end of shaft pinion by big pin coupler. Shaft pinion two ends have two shaft pinion bearings respectively, and shaft pinion bearing is arranged in shaft pinion bearing support, and shaft pinion bearing support is bolted on installation foundation 5. Pinion(gear) 201 is arranged between the middle part of shaft pinion, two shaft pinion bearings.
As shown in Fig. 1,2,3,5 and 6: ball grinder and corresponding transmission mechanism 2 form one-level independence ball milling unit, the master wheel dish of ball grinder is wanted to engage with the pinion(gear) 201 of transmission mechanism 2, master wheel dish is driven to rotate by pinion(gear) 201 during work, the dynamic ball grinder of master wheel dribbling rotates, and the length of one-level ball grinder 4 is 1.5 ~ 3 times that two grades of ball millings hang length.
As shown in Figure 4: the feeder frame of feeding device 1 is fixed on the installation foundation 5 of Steel Concrete position according to the rules by bolt. Feeder frame top is provided with two triangle tracks separated by a distance, and track is the support 102 that can move along track, and two roller shafts 101 are installed at support 102 two ends near position, edge, roller shaft 101 and triangle track at right angle setting. Roller shaft 101 two ends are V grooved roller, and roller shaft 101 is bolted bottom support 102 by roller shaft bearing and roller shaft bearing support, and the triangle track in V grooved roller and feeder frame agrees with and can roll along triangle track. Cycloidal planetary gear speed reducer 103 is bolted on the left end of support 102, the output shaft of cycloidal planetary gear speed reducer 103 is connected by one end of sliding block type coupler with transmission shaft 104, transmission shaft 104 two ends arrange two transmission shaft bearings respectively, and transmission shaft bearing is arranged in the transmission shafts bearing being bolted on support 102. Transmission shaft 104 the other end is connected by spindle nose tack bolt with screw shaft 109, screw shaft 109 is welded with to material screw-blade. It is in U shape bucket 105 and feeding device feeding tube 107 inside to material screw-blade part, U shape bucket 105 has a screw shaft axis hole near the side of transmission shaft 104, one end of screw shaft 109 is stretched out from axis hole and is connected with transmission shaft 104, axis hole place is by the sealing plate sealing being fixed on U shape bucket 105 by bolt and sealing clamp, the top of U shape bucket 105 is the hopper 106 being bolted, U shape bucket 105 is connected with hopper 106, U shape bucket 105 the other end is connected with feeding device feeding tube 107 by bolt, and junction is sealed by caulking gum. It is screw shaft 109 in feeding device feeding tube 107, outer sheath has one to water drum 110, feeding device feeding tube 107 and give and form an annular feedwater passage between water drum 110, feedwater passage end is closed, the other end is connected with the feed end of one-level ball grinder 4, to water drum is offered be connected with feedwater passage to water hole, it is possible to add water and alkaline additive. On one end insertion feed opening flange of feeding device feeding tube 107, sealed by graphite packing 108, graphite packing 108 is fixed on feed opening flange by bolt and packing pressing plate, and feed opening flange has the feed inlet end being bolted to one-level ball grinder 4 to cover.
As shown in Figure 7: the support of coupling device 3 is bolted between two ball grinders adjacent on the installation foundation 5 of Steel Concrete, putting on support and be bolted lower outer cover 304, lower outer cover 304 is connected and fixed, by bolt, the outer cover that forms a whole with upper outer cover 302 above. On upper outer cover 302, mid-way has a square mouth, is the filling tube 303 being bolted on outer cover 302 above square mouth. The flange of overall outer cover one end installs the caulking gum pressing plate and caulking gum that are bolted, caulking gum and the sealing of coupling device feeding tube 301 outer wall; The end of the coupling device feeding tube 301 that the other end Flange joint of overall outer cover is bolted. The inside of overall outer cover is coupling device feeding tube 301. Coupling device feeding tube 301 front end is installed a mounting flange, coupling device feeding tube 301 is bolted the discharge end at one-level ball grinder 4 and two grades of ball grinders 7 by mounting flange, coupling device feeding tube 301 rear portion outer wall is provided with screw-blade 306, and screw-blade 306 can by the grinding ball medium that added by filling tube 303 or supplementary slip advancing ball grinding jar; The front port of coupling device feeding tube 301 is connected with the discharge port carrying stream dish 401 of ball grinder, and rear end is rotated in the two grades of tank bodies putting in adjacent two grade ball grinder 7. It is peripheral that rear-fed mouth 305 is in coupling device feeding tube 301 deutomerite, and the flange of rear-fed mouth 305 one end is sealed by caulking gum and coupling device feeding tube 301, and caulking gum has caulking gum pressing plate and is bolted on rear-fed mouth 305. Rear-fed mouth 305 the other end flange is bolted on feed opening flange, and feed opening flange has the feed end being bolted to next stage ball grinder to cover.
As shown in Figure 8: drawing mechanism 6 is positioned at the least significant end of whole tandem continuous ball mill, the support of drawing mechanism 6 is bolted on the installation foundation 5 of Steel Concrete, the top of support is the U-shaped hopper 602 of the back-end closure being bolted, having a circular hole bottom U-shaped hopper 602 rear end, circular hole is connected with the discharging pipe of vertical direction. U-shaped hopper 602 front end has a circular hole, and is connected with a circle pipe, and the circle pipe the other end arranges joint flange, and outside is the caulking gum being bolted and caulking gum buckle, sealing bound feet and the sealing of drawing mechanism feeding tube 601 outer wall. Drawing mechanism feeding tube 601 is bolted on discharge port flange, the front port of drawing mechanism feeding tube 601 is connected with stream dish 401 discharge port of carrying of end secondary ball grinder 7, rear port inserts in U-shaped hopper 602, and discharge port flange is bolted on the crusher discharge end cover of end secondary ball grinder 7.
For the ball milling unit of level Four individual drive, a tandem continuous ball mill is assembled according to Fig. 1 and Fig. 2, wherein: the length of one-level ball grinder 4 is 12m, one-level ball grinder 4 feed end is connected with feeding device 1, the discharge end of one-level ball grinder 4 is connected with coupling device 3, the discharge end of coupling device 3 is connected with the feed end of the first step two grades of ball grinders 7, once analogize, the discharge end of the third stage two grades of ball grinders 7 is connected with the feed end of drawing mechanism 6, and the transmission mechanism 2 of the ball milling unit of every one-level individual drive is positioned at the same side of corresponding ball grinder. Feeding device 1, one-level ball grinder 4, coupling device 3, two grades of ball grinders 7, transmission mechanism 2 and drawing mechanism 6 are fixed on the installation foundation 5 of Steel Concrete.
The ball milling method of this tandem continuous ball mill is as follows:
First pass through to add a certain amount of grinding ball medium in all ball grinders of manhole 402, the grinding ball medium granularity added in one-level ball grinder 4 is 50-110mm, the grinding ball medium granularity of first two grades of ball grinder 7 is 40-90mm, the grinding ball medium granularity of the 2nd two grades of ball grinders 7 is 30-70mm, and the grinding ball medium granularity of the 3rd two grades of ball grinders 7 is 20-50mm; In one-level ball grinder 4, the material of granularity at 20-25mm is added by the manhole 402 of one-level ball grinder 4;
Starting the cycloidal planetary gear speed reducer of feeding device 1, cycloidal planetary gear speed reducer drives screw shaft 109 to rotate by transmission shaft 104; Starting the motor 203 of all transmission mechanisms 2 successively, motor 203 is by driving the pinion(gear) 201 on shaft pinion to rotate after step-down gear 202 speed change, pinion(gear) 201 drives master wheel dish to rotate, and the dynamic ball grinder of master wheel dribbling rotates; The rotating speed of ball grinder is regulated by the step-down gear 202 of transmission mechanism 2, and the rotating speed of one-level ball grinder 4 is the fastest, and reduces successively, and the rotating speed of last two grades of ball grinder 7 is the slowest;
The material that granularity is 20-25mm is added to the hopper 106 of feeding device 1, attrition degree according to grinding ball medium, in hopper 106, supplement the grinding ball medium that granularity is 50-110mm, add water and alkaline additive by the water drum 110 of giving on feeding device feeding tube 107;
In working process, after the size sieving and grading of raw meal particle size, the material of different size is joined in this ball grinder from the filling tube 303 of the coupling device 3 of this grade of ball grinder front end; The raw meal particle size of one-level ball grinder 4 requires as 20-25mm, first two grades of ball grinder 7 is 12-14mm, and the 2nd two grades of ball grinders 7 are 5-7mm, and the 3rd two grades of ball grinders 7 are 0.1-0.5mm, scope belonging to raw meal particle size, directly joins in corresponding ball grinder;
For clay class or granularity at the material of 15-48um, directly join in last two grades of ball grinder 7 with pump by the filling tube 303 of last step coupling device 3 after slurryization;
Through ground raw meal particle size substantially all between 15-48um, enter U-shaped hopper 602 by drawing mechanism feeding tube 601, then discharged by the discharging pipe of U-shaped hopper 602 rear end.
Embodiment 2
When to the granularity requirements of material lower time, can selecting to connect two two grades of ball grinders 7 below at one-level ball grinder 4, the length of one-level ball grinder 4 is 15m, and the length of two grades of ball grinders 7 is 5m, all the other shape and structures are constant, and assembling mode, ball milling method are such as embodiment 1.
Embodiment 3
If material requirement is higher, can select to connect multiple two grades of ball grinders 7 below at one-level ball grinder 4, concrete progression is selected according to actual needs, the length of one-level ball grinder 4 is 15m, the length of two grades of ball grinders 7 is 8m, all the other structural shapes are constant, and assembling mode, ball milling method are such as embodiment 1.
The above is only the better embodiment of the present invention, is not the restriction that the present invention does other form, and any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations. But every not departing from technical solution of the present invention content, any simple modification, equivalent variations and the remodeling above embodiment done according to the technical spirit of the present invention, still belongs to the protection domain of technical solution of the present invention.

Claims (7)

1. a tandem continuous ball mill, it is characterized in that: comprise feeding device (1), one-level ball grinder (4), two grades of ball grinders (7) and drawing mechanism (6), feeding device (1) is connected with one-level ball grinder (4) feed end, two grades of ball grinders (7) have the multiple of series connection, one-level ball grinder (4) is connected by coupling device (3) with adjacent two grades of ball grinders (7), it is connected by coupling device (3) between two grades of adjacent ball grinders (7), one-level ball grinder (4) and each two grades of ball grinders (7) all individual drive, the discharge end of two grades of ball grinders (7) of end is connected with drawing mechanism (6), the length of one-level ball grinder (4) is 1.5��3 times of one two grades ball grinder (7) length, the inner chamber of one-level ball grinder (4) has the tapering reduced gradually from feed end to discharge end diameter, one-level ball grinder (4) comprises one-level tank body (404), charging end cap and crusher discharge end cover, charging end cap is fixed on one-level tank body (404) front end, crusher discharge end cover is fixed on one-level tank body (404) rear end, one-level tank body (404) terminus inner arranges and carries stream filtration unit, and one-level tank body (404) inwall inlays one-level ceramic lining plate (405), one-level ceramic lining plate (405) inwall is provided with helical raised, and the rotation direction of helical raised is contrary with turning to of one-level tank body (404), carry stream filtration unit to comprise and carry stream dish (401) and rubber sieve plate, putting forward stream dish (401) profile is the horizontal funnel-form put, interior portion is slit into multiple every storehouse, the osculum carrying stream dish (401) is discharge port, big mouth is opening for feed, rubber sieve plate is fixed on the opening for feed place carrying stream dish (401), and the sieve aperture of slip on rubber sieve plate enters the opening for feed carrying stream dish (401).
2. tandem continuous ball mill according to claim 1, it is characterised in that: the length of described one-level ball grinder (4) is 12��15m, and the length of two grades of ball grinders (7) is 5��8m.
3. tandem continuous ball mill according to claim 1, it is characterized in that: described feeding device (1) comprises hopper (106), U shape bucket (105) and step-down gear, hopper (106) is fixed on the upper side opening place of U shape bucket (105), hopper (106) is connected with U shape bucket (105), the side of U shape bucket (105) is connected the feed end of one-level ball grinder (4) by feeding device feeding tube (107), it is provided with screw shaft (109) in U shape bucket (105) and feeding device feeding tube (107), screw shaft (109) is provided with screw-blade, step-down gear is connected with screw shaft (109) by transmission shaft (104).
4. tandem continuous ball mill according to claim 3, it is characterized in that: described feeding device feeding tube (107) outer sheath has one to water drum (110), feeding device feeding tube (107) and give and form an annular feedwater passage between water drum (110), feedwater passage end is closed, the other end is connected with the feed end of one-level ball grinder (4), to water drum (110) is offered with feedwater channel connection give water hole.
5. tandem continuous ball mill according to claim 1, it is characterized in that: described coupling device (3) comprises coupling device feeding tube (301) and rear-fed mouth (305), coupling device feeding tube (301) front end is fixed on one-level ball grinder (4) or the discharge end of two grades of ball grinders (7), the fixing feed end being connected two grades of adjacent ball grinders (7) of rear-fed mouth (305), coupling device feeding tube (301) posterior rotation stretches in rear-fed mouth (305); Coupling device feeding tube (301) rear outside is provided with screw-blade, and at screw-blade arranged outside outer cover, outer cover is fixedly connected with rear-fed mouth (305), and outer cover is provided with filling tube (303).
6. tandem continuous ball mill according to claim 1, it is characterized in that: described drawing mechanism (6) comprises drawing mechanism feeding tube (601) and U-shaped hopper (602), drawing mechanism feeding tube (601) is fixed on the discharge end of end secondary ball grinder (7), drawing mechanism feeding tube (601) rotates and stretches in U-shaped hopper (602), U-shaped hopper (602) is fixed on the discharge end of end secondary ball grinder (7) by a circle pipe, arranges discharging pipe bottom U-shaped hopper (602) end.
7. one kind utilizes the ball milling method of the tandem continuous ball mill described in the arbitrary item of claim 1��6, it is characterised in that: step is as follows:
First add grinding ball medium in each ball grinder, and add materials in one-level ball grinder (4);
Rotate one-level ball grinder (4) and each two grades of ball grinders (7);
Start feeding device (1), to adding materials in one-level ball grinder (4) and grind ball medium by feeding device (1);
Granularity be 0.5��15mm material slurryization after directly join in two grades of ball grinders (7) by coupling device (3), granularity be 0.1��0.5mm material slurryization after directly join in end secondary ball grinder (7) by coupling device (3);
Discharged by the drawing mechanism (6) of end through ground material.
CN201410560033.1A 2014-10-18 2014-10-18 Tandem continuous ball mill and ball milling method Active CN104258938B (en)

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