CN102950055A - Wet grinding manufacturing method and device of calcium carbonate size - Google Patents
Wet grinding manufacturing method and device of calcium carbonate size Download PDFInfo
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- CN102950055A CN102950055A CN2012104006224A CN201210400622A CN102950055A CN 102950055 A CN102950055 A CN 102950055A CN 2012104006224 A CN2012104006224 A CN 2012104006224A CN 201210400622 A CN201210400622 A CN 201210400622A CN 102950055 A CN102950055 A CN 102950055A
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Abstract
The invention relates to the field of papermaking devices and aims to provide a wet grinding manufacturing method and device of calcium carbonate size. The wet grinding manufacturing method of the calcium carbonate size comprises the following steps of: carrying out vibration cleaning on a raw marble material by clean water; crushing the raw marble material into calcium carbonate particles by a crushing device; absorbing and removing iron impurities of the particles by a magnetic device; carrying out vibrating screening on the calcium carbonate particles, and crushing the calcium carbonate particles with grain sizes being more than 3mm again; grinding and mixing the calcium carbonate particles with grain sizes being less than 3mm, water and a dispersing agent in a front-segment wet grinding device to form calcium carbonate size; regulating the volume of the clean water or the quantity of the calcium carbonate particles by detection; storing and stirring the calcium carbonate particles flowing into a buffer tank with a stirrer to prevent the precipitation of the calcium carbonate particles; and grinding the calcium carbonate particles by a back-segment wet grinding device to obtain the calcium carbonate size and sending the calcium carbonate size into a finished product tank, wherein the grain sizes of calcium carbonate particles of the finished calcium carbonate size are about 2 microns. The wet grinding manufacturing method of the calcium carbonate size is simple in technological process, not easy to cause device abrasion, and low in energy consumption and capital investment.
Description
Technical field
The present invention relates to the paper making equipment field, especially a kind of calcium carbonate slurry wet grinding manufacture method and equipment.
Background technology
By filler or the fabric of the calcium carbonate granule behind the marble crushing grinding as papermaking, the calcium carbonate slurry that calcium carbonate and water mix is the important component part of paper pulp.Traditional calcium carbonate slurry often adopts the dry grinding manufacture method, the steps include: that the marble raw material is transported to material charging region with loading machine and drops in the hopper, and under the effect of reciprocal dispenser, raw material carries out vibration washing through tape transport to cleaning vibratory sieve; Raw material after the cleaning is broken into the particle less than 50MM under mechanical force in the I and II disintegrating machine; Calcium carbonate granule after the fragmentation is transferred band and distributing trolley is delivered to stockyard storage in the factory building; Strong magnetic device is housed on the conveyer belt is used for removing iron and steel impurity, and deduster is housed with meet the requirement of environmental protection at on-site; Fracture area is provided with the melt pit pond that the melt pit water-level gauge is housed, and is replenished by the clear water supervisor when water level is low; Water behind the fractional precipitation is used for cleaning raw material, and the impurity that washes down is by the extremely interim stockyard of washing feed back helical feed; Calcium carbonate granule behind the two-stage crushing is delivered to the stockyard by the distributing trolley conveyer belt and is carried out the reasonable distribution stacking; Raw material drops down onto conveyer belt through the vibration blanking end of bottom, stockyard during demand; Elevator is done the holding vessel that level-sensing device is housed that calcium carbonate granule is delivered to milling zone to deposit; When need grinding, be stored in calcium carbonate granule in the holding vessel through the belt conveyor of weighing after, again enter beater grinder raw material carried out fragmentation; Calcium carbonate granule after the fragmentation is by chain elevator and conveying worm and rotary valve, and enter in the mill that LC-GM1400 vertical dry grinding machine falls within dry mill in the heart through feeding packing auger, be ground into powder by rolling of three emery wheels, the powder of release mesh (≤325 order) is extracted out by the grader at dry mill top; The defective particle of granularity continues to grind at dry mill; The part particle can fall into to the feed back conveying worm, is circulated back to dry mill by elevator before the main frame again and grinds; Weigh conveyer by VFC, the inlet amount of metering and control raw material; Dry mill main frame motor also adopts VFC, is used for adjusting the rotating speed of rotating disk with the output of control dry mill; Grader adopts VFC, guarantees to extract out the powder of release mesh in order to control air quantity; Grind emery wheel and adopt hydraulic control, its pressure can adjust according to actual needs; The qualified powder that is filtered out by the grader on dry mill top is sent to the dust collection tank, because the Action of Gravity Field powder falls into the collecting tank bottom; Less powder can be extracted out with air by main air blower, by the effect of pocket type pulsed dust arrester, rapping apparatus and Air Reverse blowing apparatus powder is sent to drop down onto the collecting tank bottom; Conveying worm and rotary feeder are equipped with in the collecting tank bottom; By roots blower the powder pneumatic transporting is delivered in the dry powder storehouse, wet-milling bubble slurry is for wet-milling production; Level-sensing device or poidometer are equipped with up and down in the dry powder storehouse, with the material level in metering dry powder storehouse.There is the technological process complexity in present calcium carbonate slurry dry grinding manufacture method, equipment is easy to wear, energy consumption is high and the large height height of occupation area of equipment causes the large deficiency of capital expenditure; Therefore, design a kind of technological process is simple, equipment is not easy to wear, energy consumption is low and capital expenditure is little calcium carbonate slurry wet grinding manufacture method and equipment, become problem demanding prompt solution.
Summary of the invention
The objective of the invention is to have in order to overcome present calcium carbonate slurry dry grinding manufacture method that technological process is complicated, equipment is easy to wear, energy consumption is high and the large height height of occupation area of equipment causes the large deficiency of capital expenditure, a kind of technological process is simple, equipment is not easy to wear, energy consumption is low and capital expenditure is little calcium carbonate slurry wet grinding manufacture method and equipment are provided.
Concrete technical scheme of the present invention is:
A kind of calcium carbonate slurry wet grinding manufacture method, it comprises the following steps: that (1) marble raw material is by reciprocating feeder clear water vibration washing; (2) the marble raw material behind the vibration washing is broken into calcium carbonate granule by breaker; (3) with magnetic attracting device the iron impurity in the calcium carbonate granule is absorbed; (4) calcium carbonate granule is through vibrosieve, and particle diameter re-starts fragmentation greater than the calcium carbonate granule of 3mm; (4) by ratio requirement particle diameter being put into leading portion wet-milling device less than or equal to calcium carbonate granule, water and the dispersant of 3mm carries out ground and mixed Cheng Gu and contains 70% to 80% calcium carbonate and calcium carbonate granule particle diameter less than or equal to 325 purpose calcium carbonate slurries; (5) detect the solid ratio calciferous of calcium carbonate slurry by mass flowmenter, namely automatically adjust clear water amount or calcium carbonate granule amount by Distributed Control System control if any deviation; (6) calcium carbonate slurry flows into the surge tank storage that is provided with mixer and stirs and prevents precipitation; (7) calcium carbonate slurry in the surge tank is sent into back segment wet-milling device and is ground and obtain the calcium carbonate slurry about calcium carbonate granule particle diameter 2um and send into finished pot.This calcium carbonate slurry wet grinding manufacturing approach craft flow process is simple, equipment is not easy to wear, energy consumption is low and capital expenditure is little.
As preferably, describedly by ratio requirement particle diameter is put into leading portion wet-milling device less than or equal to calcium carbonate granule, water and the dispersant of 3mm and carry out ground and mixed Cheng Gu and contain 75% calcium carbonate and calcium carbonate granule particle diameter less than or equal to 325 purpose calcium carbonate slurries.Admittedly it is more suitable as filler or the fabric of papermaking less than or equal to 325 purpose calcium carbonate slurries to contain 75% calcium carbonate and calcium carbonate granule particle diameter.
A kind of equipment of realizing calcium carbonate slurry wet grinding manufacture method claimed in claim 1 comprises the reciprocating feeder that is provided with feed hopper, the breaker that feed end is relative with the discharge end of reciprocating feeder, leading portion wet-milling device, back segment wet-milling device, feed end and discharge end be the band elevator relative with the feed end of the discharge end of breaker and leading portion wet-milling device respectively, the surge tank that is provided with mixer and centrifugal pump and liquid level gauge that feed end and discharge end are communicated with the feed end of the discharge end of leading portion wet-milling device and back segment wet-milling device respectively, the finished pot that is provided with mixer and is communicated with the discharge end of back segment wet-milling device, being used for reciprocating feeder and leading portion wet-milling device supplies water and is provided with the feed pipe of flowmeter and is used for leading portion wet-milling device and back segment wet-milling device adds the dispersant pipe that send dispersant and be provided with flowmeter.The equipment of realizing calcium carbonate slurry wet grinding manufacture method can make calcium carbonate slurry reach technological requirement effectively.
As preferably, described breaker comprises two jaw crushers, storage warehouse, accumulator tank, particle vibration sieve, three bucket elevators and three belt conveyors with magnetic attracting device; The discharge end of reciprocating feeder is relative with the feed end of First jaw crusher, and the two ends of the First belt conveyor respectively feed end with the discharge end of First jaw crusher and First bucket elevator are relative; The discharge end of First bucket elevator is relative with the feed end of storage warehouse; The two ends of second belt conveyor respectively feed end with the discharge end of storage warehouse and second bucket elevator are relative; The discharge end of second bucket elevator is relative with the feed end of second jaw crusher, the feed end of particle vibration sieve is relative with the discharge end of second jaw crusher, and particle vibration sieve is provided with particulate discharge end and the coarse grain discharge end relative with the feed end of the 3rd bucket elevator; The discharge end of the 3rd bucket elevator is relative with the feed end of accumulator tank; The discharge end of accumulator tank is relative with the feed end of band elevator; The two ends of the 3rd the belt conveyor respectively feed end with coarse grain discharge end and second bucket elevator are relative.Breaker is simple and practical.
As preferably, described leading portion wet-milling device comprises two wet milks, is provided with the transition tank of mixer and centrifugal pump, for detection of solid mass flowmenter calciferous, delivery pump and five slurry vibratory sieves in the calcium carbonate slurry; Described wet milk is provided with charging aperture and discharging opening, and the slurry vibratory sieve is provided with slurry import, screened stock outlet and thick slurry outlet; The discharge end of band elevator is relative with the charging aperture of First wet milk; The slurry import of First slurry vibratory sieve is connected with screened stock respectively is connected feed end with the discharging opening of First wet milk and is connected with transition tank; The discharge end of transition tank is connected with the slurry import of second slurry vibratory sieve and the slurry import of the 3rd slurry vibratory sieve respectively by mass flowmenter; The screened stock outlet of second slurry vibratory sieve and the screened stock outlet of the 3rd slurry vibratory sieve are connected with the charging aperture of second wet milk respectively; The thick slurry outlet of the thick slurry outlet of second slurry vibratory sieve and the 3rd slurry vibratory sieve is connected with the charging aperture of First wet milk respectively; The discharging opening of second wet milk is connected with the slurry import of the 4th slurry vibratory sieve; The screened stock outlet of the 4th slurry vibratory sieve is connected by the slurry import of delivery pump with the 5th slurry vibratory sieve; The screened stock outlet of the 5th slurry vibratory sieve is connected with the feed end of surge tank by delivery pump; Feed pipe is communicated with two wet milks respectively; The dispersant pipe is communicated with two wet milks respectively.Leading portion wet-milling apparatus structure is simple and practical.
As preferably, described back segment wet-milling device comprises two wet milks, electromagnetic flowmeter, deironing filter, three delivery pumps and three slurry vibratory sieves; Described wet milk is provided with charging aperture and discharging opening, and the slurry vibratory sieve is provided with slurry import, screened stock outlet and thick slurry outlet; The discharge end of surge tank is connected by the charging aperture of electromagnetic flowmeter with the First wet milk; The discharging opening of First wet milk is connected with the slurry import of First slurry vibratory sieve; The screened stock outlet of First slurry vibratory sieve is connected with the charging aperture of second wet milk by the First delivery pump; The discharging opening of second wet milk is connected with deironing filter with the slurry import of second slurry vibratory sieve and the slurry import of the 3rd slurry vibratory sieve and is connected by second delivery pump; The screened stock outlet of second slurry vibratory sieve and the screened stock outlet of the 3rd slurry vibratory sieve are connected with finished pot by the 3rd delivery pump respectively; The dispersant pipe is communicated with two wet milks respectively.Back segment wet-milling apparatus structure is simple and practical.
As preferably, described wet milk comprises that the bottom is provided with the staving of abrasive media outlet, is provided with the drive unit that is fixedly connected with the upper end of shaft into water interface and dispersant interface and the loam cake that is fixedly connected with the upper end of staving, with shaft, several stirring rod that are fixedly connected with the gusset of shaft, output that loam cake articulates and is located at sieving of discharging opening place; The inboard of described staving is arranged with several wear resistant lugs; The charging aperture of described wet milk is positioned at and covers, and discharging opening is positioned at the bottom of staving.During this wet milk work, be placed with abrasive media (ceramic bead) in the staving; Mix with abrasive media after entering wet milk by the particle diameter of ratio requirement less than or equal to calcium carbonate granule, water and the dispersant of 3mm or calcium carbonate slurry, drive unit drives the stirring rod High Rotation Speed and stirs, calcium carbonate granule and abrasive media strong collision and shearing, calcium carbonate slurry and abrasive media bump and rebound with staving and wear resistant lug under centrifugal action simultaneously, produce a large amount of irregular eddy current, make calcium carbonate granule obtain grinding refinement.The wet milk grinding effect is good.
As preferably, described staving comprises that the gusset shape of cross section is the interior bucket of regular polygon and the wearing plate that equates with the regular polygon limit number of interior bucket for circular outer barrel, shape of cross section; Every wearing plate is fixedly connected with one side of the interior gusset of interior bucket; Be provided with the cooling water deflector between the described outer barrel and inner barr; Described several wear resistant lugs are in a row arranged, and the row of wear resistant lug equates that with the limit number of interior bucket every row's wear resistant lug is fixedly connected with the abutting end of adjacent two wearing plates respectively.Bucket can be strengthened grinding effect in the regular polygon; Wearing plate can prolong the service life of staving.
As preferably, described several stirring rod are arranged above and below into and are uniformly distributed along the circumference two layers to six layers, and the levels stirring rod is staggered and is fixedly connected with the gusset of shaft bottom respectively.The arrangement mode of stirring rod can be strengthened grinding effect.
As preferably, be covered with the abrasive media import on described and be used for the impeller of opening and closing of fault abrasive media import.Wheel rotor can make abrasive media import opening and closing of fault, and the abrasive media of packing into is convenient.
Compared with prior art, the invention has the beneficial effects as follows: one. this calcium carbonate slurry wet grinding manufacturing approach craft flow process is simple, equipment is not easy to wear, energy consumption is low and capital expenditure is little; Admittedly it is more suitable as filler or the fabric of papermaking less than or equal to 325 purpose calcium carbonate slurries to contain 75% calcium carbonate and calcium carbonate granule particle diameter.Two. the equipment of realizing calcium carbonate slurry wet grinding manufacture method can make calcium carbonate slurry reach technological requirement effectively.Three. breaker, leading portion wet-milling device, back segment wet-milling apparatus structure are simple and practical.Four. bucket can be strengthened grinding effect in the regular polygon; Wearing plate can prolong the service life of staving.Five. the arrangement mode of stirring rod can be strengthened grinding effect.Six. wheel rotor can make abrasive media import opening and closing of fault, and the abrasive media of packing into is convenient.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is a kind of structural representation of wet milk among Fig. 1.
Among the figure: feed pipe-1, dispersant pipe-2, reciprocating feeder-3, feed hopper-31, surge tank-4, centrifugal pump-41, liquid level gauge-42, belt conveyor-5, magnetic attracting device-51, particle vibration sieve-6, particulate discharge end-61, coarse grain discharge end-62, wet milk-7, charging aperture-71, discharging opening-72, abrasive media outlet-73, staving-74, outer barrel-741, interior bucket-742, wearing plate-743, water inlet interface-75, dispersant interface-76, loam cake-77, shaft-78, stirring rod-79, door sieve-710, wear resistant lug-711, abrasive media import-712, impeller-713, motor-714, reduction box-715, shaft coupling-716, cooling water deflector-717, slurry vibratory sieve-8, slurry import-81, screened stock outlet-82, thick slurry outlet-83, band elevator-11, finished pot-12, jaw crusher-13, storage warehouse-14, accumulator tank-15, bucket elevator-16, transition tank-17, mass flowmenter-18, delivery pump-19, electromagnetic flowmeter-20, deironing filter-21.
The specific embodiment
The present invention is described further below in conjunction with shown in the accompanying drawing.
A kind of calcium carbonate slurry wet grinding manufacture method, it comprises the following steps: that (1) marble raw material is by reciprocating feeder clear water vibration washing; (2) the marble raw material behind the vibration washing is broken into calcium carbonate granule by breaker; (3) with magnetic attracting device the iron impurity in the calcium carbonate granule is absorbed; (4) calcium carbonate granule is through vibrosieve, and particle diameter re-starts fragmentation greater than the calcium carbonate granule of 3mm; (4) by ratio requirement particle diameter being put into leading portion wet-milling device less than or equal to calcium carbonate granule, water and the dispersant of 3mm carries out ground and mixed Cheng Gu and contains 70% to 80% calcium carbonate and calcium carbonate granule particle diameter less than or equal to 325 purpose calcium carbonate slurries; (5) detect the solid ratio calciferous of calcium carbonate slurry by mass flowmenter, namely automatically adjust clear water amount or calcium carbonate granule amount by Distributed Control System control if any deviation; (6) calcium carbonate slurry flows into the surge tank storage that is provided with mixer and stirs and prevents precipitation; (7) calcium carbonate slurry in the surge tank is sent into back segment wet-milling device and is ground and obtain the calcium carbonate slurry about calcium carbonate granule particle diameter 2um and send into finished pot.
In the present embodiment, describedly by ratio requirement particle diameter is put into leading portion wet-milling device less than or equal to calcium carbonate granule, water and the dispersant of 3mm and carry out ground and mixed Cheng Gu and contain 75% calcium carbonate and calcium carbonate granule particle diameter less than or equal to 325 purpose calcium carbonate slurries.
Such as accompanying drawing 1, shown in the accompanying drawing 2: a kind of equipment of realizing calcium carbonate slurry wet grinding manufacture method claimed in claim 1 comprises the reciprocating feeder 3 with feed hopper 31, the breaker that feed end is relative with the discharge end of reciprocating feeder 3, leading portion wet-milling device, back segment wet-milling device, feed end and discharge end be the band elevator 11 relative with the feed end of the discharge end of breaker and leading portion wet-milling device respectively, the surge tank 4 with mixer and centrifugal pump 41 and liquid level gauge 42 that feed end and discharge end are communicated with the feed end of the discharge end of leading portion wet-milling device and back segment wet-milling device respectively, the finished pot 12 that has mixer and be communicated with the discharge end of back segment wet-milling device, being used for reciprocating feeder 3 and leading portion wet-milling device supplies water and has the feed pipe 1 of flowmeter and be used for leading portion wet-milling device and back segment wet-milling device adds the dispersant pipe 2 that send dispersant and have flowmeter.
Described breaker comprises two jaw crushers 13, storage warehouse 14, accumulator tank 15, particle vibration sieve 6, three bucket elevators 16 and three belt conveyors 5 with magnetic attracting device 51; Described magnetic attracting device 51 is electromagnet; The discharge end of reciprocating feeder 3 is relative with the feed end of First jaw crusher 13, and the two ends of the First belt conveyor 5 respectively feed end with the discharge end of First jaw crusher 13 and First bucket elevator 16 are relative; The discharge end of First bucket elevator 16 is relative with the feed end of storage warehouse 14; The two ends of second belt conveyor 5 respectively feed end with the discharge end of storage warehouse 14 and second bucket elevator 16 are relative; The discharge end of second bucket elevator 16 is relative with the feed end of second jaw crusher 13, the feed end of particle vibration sieve 6 is relative with the discharge end of second jaw crusher 13, and particle vibration sieve 6 has particulate discharge end 61 and the coarse grain discharge end 62 relative with the feed end of the 3rd bucket elevator 16; The discharge end of the 3rd bucket elevator 16 is relative with the feed end of accumulator tank 15; The discharge end of accumulator tank 15 is relative with the feed end of band elevator 11; The two ends of the 3rd the belt conveyor 5 respectively feed end with coarse grain discharge end 62 and second bucket elevator 16 are relative.
Described leading portion wet-milling device comprises two wet milks 7, has the transition tank 17 of mixer and centrifugal pump 41, for detection of solid mass flowmenter 18 calciferous, delivery pump 19 and five slurry vibratory sieves 8 in the calcium carbonate slurry; Described wet milk 7 has charging aperture 71 and discharging opening 72, and slurry vibratory sieve 8 has slurry import 81, screened stock outlet 82 and thick slurry outlet 83; The discharge end of band elevator 11 is relative with the charging aperture 71 of First wet milk 7; The slurry import 81 of First slurry vibratory sieve 8 is connected 82 and is connected with the feed end that the discharging opening 72 of First wet milk 7 is connected with transition tank respectively with screened stock; The discharge end of transition tank 17 is connected with the slurry import 81 of second slurry vibratory sieve 8 and the slurry import 81 of the 3rd slurry vibratory sieve 8 respectively by mass flowmenter 18; The screened stock outlet 82 of second slurry vibratory sieve 8 and the screened stock outlet 82 of the 3rd slurry vibratory sieve 8 are connected with the charging aperture 71 of second wet milk 7 respectively; The thick slurry outlet 83 of the thick slurry outlet 83 of second slurry vibratory sieve 8 and the 3rd slurry vibratory sieve 8 is connected with the charging aperture 71 of First wet milk 7 respectively; The discharging opening 72 of second wet milk 7 is connected with the slurry import 81 of the 4th slurry vibratory sieve 8; The screened stock outlet 82 of the 4th slurry vibratory sieve 8 is connected with the slurry import 81 of the 5th slurry vibratory sieve 8 by delivery pump 19; The screened stock outlet 82 of the 5th slurry vibratory sieve 8 is connected with the feed end of surge tank 4 by delivery pump 19; Feed pipe 1 is communicated with two wet milks 7 respectively; Dispersant pipe 2 is communicated with two wet milks 7 respectively.
Described back segment wet-milling device comprises two wet milks 7, electromagnetic flowmeter 20, deironing filter 21, three delivery pumps 19 and three slurry vibratory sieves 8; Described wet milk 7 has charging aperture 71 and discharging opening 72, and slurry vibratory sieve 8 has slurry import 81, screened stock outlet 82 and thick slurry outlet 83; The discharge end of surge tank 4 is connected with the charging aperture 71 of First wet milk 7 by electromagnetic flowmeter 20; The discharging opening 72 of First wet milk 7 is connected with the slurry import 81 of First slurry vibratory sieve 8; The screened stock outlet 82 of First slurry vibratory sieve 8 is connected with the charging aperture 71 of second wet milk 7 by First delivery pump 19; The discharging opening 72 of second wet milk 7 is connected with deironing filter by second delivery pump 19 and is connected with the slurry import 81 of second slurry vibratory sieve 8 and the slurry import 81 of the 3rd slurry vibratory sieve 8 respectively; The screened stock outlet 82 of second slurry vibratory sieve 8 and the screened stock outlet 82 of the 3rd slurry vibratory sieve 8 are connected with finished pot 12 by the 3rd delivery pump 19 respectively; Dispersant pipe 2 is communicated with two wet milks 7 respectively.
Described wet milk 7 comprise the bottom have the staving 74 of abrasive media outlet 73, have into water interface 75 are connected with the dispersant interface and the loam cake 77 that is connected with the upper end screw of staving 74, the drive unit that is fixedly connected with the upper end of shaft 78 by the shaft 78 of bearing hinge joint, several stirring rod 79 that are connected with the gusset screw of shaft 78, output with loam cake 77 and be located at discharging opening place 72 sieve 710; The interior gusset of described staving 74 has several wear resistant lugs 711; The charging aperture 71 of described wet milk is positioned on the loam cake 77, and discharging opening 72 is positioned at the bottom of staving 74.Described loam cake 77 has abrasive media import 712 and is used for the impeller 713 of opening and closing of fault abrasive media import 712.
In the present embodiment, described drive unit comprises that motor 714, reduction box 715 be connected the shaft coupling 716 that the input axle key of being connected with reduction box with the output shaft of motor 714 is connected with two ends; The upper end of shaft 78 is connected with the output key of reduction box 715.
In the present embodiment, described staving 74 comprises that the gusset shape of cross section is the interior bucket 742 of octagon and eight wearing plates 743 that equate with the octagon limit number of interior bucket 742 for circular outer barrel 741, shape of cross section; Every wearing plate 743 is connected with one side screw of the interior gusset of interior bucket 742; Has cooling water deflector 717 between described outer barrel 741 and the interior bucket 742; Described wear resistant lug 711 has 48,48 wear resistant lugs 711 are in a row arranged, the row of wear resistant lug 711 equates to be eight rows with the limit number of interior bucket 742, and every row's wear resistant lug 711 has six, and every row's wear resistant lug 711 is connected with the abutting end screw of adjacent two wearing plates 743 respectively.
Described several stirring rod 79 are arranged above and below into and are uniformly distributed along the circumference two layers to six layers, and levels stirring rod 79 is staggered and is fixedly connected with the gusset of shaft 78 bottoms respectively; In the present embodiment, described stirring rod 79 has 18,18 stirring rod 79 six every layer be arranged above and below into three layers that are uniformly distributed along the circumference, levels stirring rod 79 is staggered and is connected with the gusset screw of shaft 78 bottoms respectively.
Realize the equipment of calcium carbonate slurry wet grinding manufacture method by Distributed Control System (DCS) control, the marble raw material is by cleaning used by oscillating screen clear water vibration washing; Marble raw material behind the vibration washing is absorbed iron impurity and send into second jaw crusher 13 by the First belt conveyor 5 that magnetic attracting device 51 is housed on the conveyer belt afterwards by 13 fragmentations of First jaw crusher and is broken into calcium carbonate granule; Calcium carbonate granule is through particle vibration sieve 6 screening, and size is sieved out less than the calcium carbonate granule of 3mm and delivered to holding vessel through bucket elevator 16 and store, and size sends back to second jaw crusher 13 more than or equal to the calcium carbonate granule of 3mm and re-starts fragmentation; A certain amount of calcium carbonate granule sent into leading portion First wet milk 7 and add First wet milk 7 by the water of ratio requirement and dispersant carry out elementary grinding, under the effect of high speed strong agitation, be mixed into the calcium carbonate slurry that admittedly contains 75% calcium carbonate; Calcium carbonate slurry after the elementary grinding flows into transition tank 17 storages with mixer and stirs and prevents precipitation after 8 screenings of slurry vibratory sieve; By the solid ratio calciferous of slurry in the mass flowmenter 18 detection transition tanks 17, namely control the calcium carbonate granule of automatic adjustment First wet milk 7 or the addition of water by Distributed Control System if any deviation; The slurry that proportioning is qualified enters second wet milk of leading portion 7 and grinds and sieve through door sieve 710, and the calcium carbonate granule particle diameter is squeezed into surge tank 4 storages with mixer and stirred with delivery pump-19 less than or equal to the qualified calcium carbonate slurry of 325 purposes and prevents precipitation; Slurry in the surge tank 4 is sent into back segment First wet milk 7 through centrifugal pump 41 and is ground, calcium carbonate slurry after First wet milk 7 grinds is driven into second wet milk 7 and grinds, by the power division of wet milks 7 at different levels, the particle diameter of the final calcium carbonate granule in the calcium carbonate slurry after last wet milk 7 wet-millings is about 2um; The iron impurity of deironing filter 21 in can the filtering calcium carbonate slurry.
During wet milk 7 work, be placed with abrasive media (ceramic bead) in the staving 74; Enter less than or equal to calcium carbonate granule, water and the dispersant of 3mm by the particle diameter of ratio requirement and to mix with abrasive media after First wet milk 7 or calcium carbonate slurry enter all the other wet milks 7, opening motor 714 drives stirring rod 79 High Rotation Speeds and stirs through reduction box 715, shaft 78, calcium carbonate granule and abrasive media strong collision and shearing, calcium carbonate slurry and abrasive media bump and rebound with wearing plate 743 and wear resistant lug 711 under centrifugal action simultaneously, produce a large amount of irregular eddy current, make calcium carbonate granule obtain grinding refinement; Between the outer barrel 741 of staving 74 and interior bucket 742, can pass into the circulating cooling water cooling.
The invention has the beneficial effects as follows: this calcium carbonate slurry wet grinding manufacturing approach craft flow process is simple, equipment is not easy to wear, energy consumption is low, wet grinding substitutes dry grinding Energy Intensity Reduction 2% to 5%, and capital expenditure is little: factory building height is reduced to≤10M from 〉=16M; Plant area reduces to≤200 ㎡ from 〉=400 ㎡; The main equipment given tensile load is reduced to≤530KN from 〉=2200KN; The abrasive media of wet grinding machine adopts 7000 yuan/tons ceramic bead, and the abrasive media of dry grinding machine is 150,000 yuan/tons zirconium pearl.Admittedly it is more suitable as filler or the fabric of papermaking less than or equal to 325 purpose calcium carbonate slurries to contain 75% calcium carbonate and calcium carbonate granule particle diameter.The equipment of realizing calcium carbonate slurry wet grinding manufacture method can make calcium carbonate slurry reach technological requirement effectively.Breaker, leading portion wet-milling device, back segment wet-milling apparatus structure are simple and practical.Bucket can be strengthened grinding effect in the regular polygon; Wearing plate can prolong the service life of staving.The arrangement mode of stirring rod can be strengthened grinding effect.Wheel rotor can make abrasive media import opening and closing of fault convenient.
It is apparent to one skilled in the art that the present invention can change into various ways, and such change is not thought and departed from the scope of the present invention.The apparent modification of the technical staff to described field that all are such will be included within the scope of this claim.
Claims (10)
1. a calcium carbonate slurry wet grinding manufacture method is characterized in that, it comprises the following steps: that (1) marble raw material is by reciprocating feeder clear water vibration washing; (2) the marble raw material behind the vibration washing is broken into calcium carbonate granule by breaker; (3) with magnetic attracting device the iron impurity in the calcium carbonate granule is absorbed; (4) calcium carbonate granule is through vibrosieve, and particle diameter re-starts fragmentation greater than the calcium carbonate granule of 3mm; (4) by ratio requirement particle diameter being put into leading portion wet-milling device less than or equal to calcium carbonate granule, water and the dispersant of 3mm carries out ground and mixed Cheng Gu and contains 70% to 80% calcium carbonate and calcium carbonate granule particle diameter less than or equal to 325 purpose calcium carbonate slurries; (5) detect the solid ratio calciferous of calcium carbonate slurry by mass flowmenter, namely automatically adjust clear water amount or calcium carbonate granule amount by Distributed Control System control if any deviation; (6) calcium carbonate slurry flows into the surge tank storage that is provided with mixer and stirs and prevents precipitation; (7) calcium carbonate slurry in the surge tank is sent into back segment wet-milling device and is ground and obtain the calcium carbonate slurry about calcium carbonate granule particle diameter 2um and send into finished pot.
2. calcium carbonate slurry wet grinding manufacture method according to claim 1 is characterized in that: describedly by ratio requirement particle diameter is put into leading portion wet-milling device less than or equal to calcium carbonate granule, water and the dispersant of 3mm and carry out ground and mixed Cheng Gu and contain 75% calcium carbonate and calcium carbonate granule particle diameter less than or equal to 325 purpose calcium carbonate slurries.
3. an equipment of realizing calcium carbonate slurry wet grinding manufacture method claimed in claim 1 is characterized in that: comprise the reciprocating feeder that is provided with feed hopper, the breaker that feed end is relative with the discharge end of reciprocating feeder, leading portion wet-milling device, back segment wet-milling device, feed end and discharge end be the band elevator relative with the feed end of the discharge end of breaker and leading portion wet-milling device respectively, the surge tank that is provided with mixer and centrifugal pump and liquid level gauge that feed end and discharge end are communicated with the feed end of the discharge end of leading portion wet-milling device and back segment wet-milling device respectively, the finished pot that is provided with mixer and is communicated with the discharge end of back segment wet-milling device, being used for reciprocating feeder and leading portion wet-milling device supplies water and is provided with the feed pipe of flowmeter and is used for leading portion wet-milling device and back segment wet-milling device adds the dispersant pipe that send dispersant and be provided with flowmeter.
4. the equipment of realization calcium carbonate slurry wet grinding manufacture method according to claim 3, it is characterized in that: described breaker comprises two jaw crushers, storage warehouse, accumulator tank, particle vibration sieve, three bucket elevators and three belt conveyors with magnetic attracting device; The discharge end of reciprocating feeder is relative with the feed end of First jaw crusher, and the two ends of the First belt conveyor respectively feed end with the discharge end of First jaw crusher and First bucket elevator are relative; The discharge end of First bucket elevator is relative with the feed end of storage warehouse; The two ends of second belt conveyor respectively feed end with the discharge end of storage warehouse and second bucket elevator are relative; The discharge end of second bucket elevator is relative with the feed end of second jaw crusher, the feed end of particle vibration sieve is relative with the discharge end of second jaw crusher, and particle vibration sieve is provided with particulate discharge end and the coarse grain discharge end relative with the feed end of the 3rd bucket elevator; The discharge end of the 3rd bucket elevator is relative with the feed end of accumulator tank; The discharge end of accumulator tank is relative with the feed end of band elevator; The two ends of the 3rd the belt conveyor respectively feed end with coarse grain discharge end and second bucket elevator are relative.
5. the equipment of realization calcium carbonate slurry wet grinding manufacture method according to claim 3 is characterized in that: described leading portion wet-milling device comprises two wet milks, is provided with the transition tank of mixer and centrifugal pump, for detection of solid mass flowmenter calciferous, delivery pump and five slurry vibratory sieves in the calcium carbonate slurry; Described wet milk is provided with charging aperture and discharging opening, and the slurry vibratory sieve is provided with slurry import, screened stock outlet and thick slurry outlet; The discharge end of band elevator is relative with the charging aperture of First wet milk; The slurry import of First slurry vibratory sieve is connected with screened stock respectively is connected feed end with the discharging opening of First wet milk and is connected with transition tank; The discharge end of transition tank is connected with the slurry import of second slurry vibratory sieve and the slurry import of the 3rd slurry vibratory sieve respectively by mass flowmenter; The screened stock outlet of second slurry vibratory sieve and the screened stock outlet of the 3rd slurry vibratory sieve are connected with the charging aperture of second wet milk respectively; The thick slurry outlet of the thick slurry outlet of second slurry vibratory sieve and the 3rd slurry vibratory sieve is connected with the charging aperture of First wet milk respectively; The discharging opening of second wet milk is connected with the slurry import of the 4th slurry vibratory sieve; The screened stock outlet of the 4th slurry vibratory sieve is connected by the slurry import of delivery pump with the 5th slurry vibratory sieve; The screened stock outlet of the 5th slurry vibratory sieve is connected with the feed end of surge tank by delivery pump; Feed pipe is communicated with two wet milks respectively; The dispersant pipe is communicated with two wet milks respectively.
6. the equipment of realization calcium carbonate slurry wet grinding manufacture method according to claim 3, it is characterized in that: described back segment wet-milling device comprises two wet milks, electromagnetic flowmeter, deironing filter, three delivery pumps and three slurry vibratory sieves; Described wet milk is provided with charging aperture and discharging opening, and the slurry vibratory sieve is provided with slurry import, screened stock outlet and thick slurry outlet; The discharge end of surge tank is connected by the charging aperture of electromagnetic flowmeter with the First wet milk; The discharging opening of First wet milk is connected with the slurry import of First slurry vibratory sieve; The screened stock outlet of First slurry vibratory sieve is connected with the charging aperture of second wet milk by the First delivery pump; The discharging opening of second wet milk is connected with deironing filter with the slurry import of second slurry vibratory sieve and the slurry import of the 3rd slurry vibratory sieve and is connected by second delivery pump; The screened stock outlet of second slurry vibratory sieve and the screened stock outlet of the 3rd slurry vibratory sieve are connected with finished pot by the 3rd delivery pump respectively; The dispersant pipe is communicated with two wet milks respectively.
7. it is characterized in that according to claim 5 or the equipment of 6 described realization calcium carbonate slurry wet grinding manufacture methods: described wet milk comprises that the bottom is provided with the staving of abrasive media outlet, is provided with the drive unit that is fixedly connected with the upper end of shaft into water interface and dispersant interface and the loam cake that is fixedly connected with the upper end of staving, with shaft, several stirring rod that are fixedly connected with the gusset of shaft, output that loam cake articulates and is located at sieving of discharging opening place; The inboard of described staving is arranged with several wear resistant lugs; The charging aperture of described wet milk is positioned at and covers, and discharging opening is positioned at the bottom of staving.
8. the equipment of realization calcium carbonate slurry wet grinding manufacture method according to claim 7 is characterized in that: described staving comprises that the gusset shape of cross section is the interior bucket of regular polygon and the wearing plate that equates with the regular polygon limit number of interior bucket for circular outer barrel, shape of cross section; Every wearing plate is fixedly connected with one side of the interior gusset of interior bucket; Be provided with the cooling water deflector between the described outer barrel and inner barr; Described several wear resistant lugs are in a row arranged, and the row of wear resistant lug equates that with the limit number of interior bucket every row's wear resistant lug is fixedly connected with the abutting end of adjacent two wearing plates respectively.
9. the equipment of realization calcium carbonate slurry wet grinding manufacture method according to claim 7, it is characterized in that: described several stirring rod are arranged above and below into and are uniformly distributed along the circumference two layers to six layers, and the levels stirring rod is staggered and is fixedly connected with the gusset of shaft bottom respectively.
10. the equipment of realization calcium carbonate slurry wet grinding manufacture method according to claim 7 is characterized in that: be covered with the abrasive media import on described and be used for the impeller of opening and closing of fault abrasive media import.
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| CN104941751A (en) * | 2015-06-30 | 2015-09-30 | 长沙万荣粉体设备科技有限公司 | Powder grinding equipment |
| CN105032579A (en) * | 2015-06-03 | 2015-11-11 | 安徽省铜陵县牛山矿业有限责任公司 | Envelope TiO2 slurry continuous grinding device |
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| CN110683909A (en) * | 2019-09-24 | 2020-01-14 | 宁坚 | Novel plant snail-killing herbicide regulator production equipment and process method thereof |
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| CN115069386A (en) * | 2022-06-06 | 2022-09-20 | 徐杰 | Combined mounting platform of crushing, washing and mineral separation system |
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