CN103394390A - Abrasive material crushing final grinding - Google Patents

Abrasive material crushing final grinding Download PDF

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Publication number
CN103394390A
CN103394390A CN2013103452082A CN201310345208A CN103394390A CN 103394390 A CN103394390 A CN 103394390A CN 2013103452082 A CN2013103452082 A CN 2013103452082A CN 201310345208 A CN201310345208 A CN 201310345208A CN 103394390 A CN103394390 A CN 103394390A
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powder
grinding
select
selects
storehouse
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陈家奎
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陈家奎
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Priority to CN2013103452082A priority Critical patent/CN103394390A/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/10Production of cement, e.g. improving or optimising the production methods; Cement grinding

Abstract

The invention relates to abrasive material crushing final grinding, and particularly relates to inorganic nonmetal material grinding. The invention needs to solve that crushed final ground cement can meet cement quality requirements in the particle size distribution and the particle shape. The technical scheme of the invention comprises fine steel balls are mixed into a cement ground material and perform roll-in grinding together with the cement ground material by a toothed rolling machine, the ground material is crushed and ground to reach the cement quality requirements by utilizing the fine steel balls, a qualified fine powder in the crushed ground ground material mixed with the fine steel balls is sorted and collected to form a finished product by an air returning powder selecting bin (5) and a powder selecting impeller powder selecting machine (19) and a spiral centrifugal separation pipe (41), and thus the invention objective of the invention is achieved.

Description

The whole grinding of abrasive crushing
Technical field: the invention provides a kind of Inorganic Non-metallic Materials grinding field for the grinding method of grinding and the whole grinding of abrasive crushing of system equipment thereof.
Background technology: present grinding field is in cement grinding is produced, in the past take the pipe ball mill as main, for reducing energy consumption, develop into present take pipe ball mill and roller press combination production as main, far above the pipe ball mill, for further reducing energy consumption, the roll squeezer cement finish grinding of ball mill useless with the direct roll-in grinding of roll squeezer appearred due to the available energy dissipation of roll squeezer.Patent take " a kind of roller press combination grinding device " patent No. of Tianjin Design Inst. of Cement Industry Co., Ltd as " 200710059748.9 " in pipe ball mill and roller press combination are produced is as example: its patent characteristic is; The new material of ingredient sector cooperation feeds the V-type powder concentrator through the elevating conveyor structure together with the material after roll squeezer pushes, in the V-type powder concentrator, carry out sorting, coarse fodder enters the extruding of roll-in machine side, fines is brought into the combination powder concentrator from bottom by air-flow through pipeline, the V-type powder concentrator is connected a system wind blower fan with the combination powder concentrator, the meal of combination powder concentrator sorting enters the ball mill grinding, the material feeding combination powder concentrator of ball mill grinding, the combination powder concentrator is through pipeline connecting bag dust-precipitator, and bag collector is collected the fine powder qualified products of combination powder concentrator sorting.With " roll squeezer cement finish grinding system and the grinding method thereof " of the whole grinding of the roll squeezer of the direct roll-in of roll squeezer with Jiangsu Haijan Co., Ltd., comprise the following steps: (1) course of conveying; Material is delivered to the current stabilization storehouse by ribbon conveyer, and said current stabilization storehouse is provided with load sensor and detects material level in storehouse; (2) extruding and cycle extrusion process; Material is from carrying out the extruding of comminution current stabilization storehouse supersaturation feeding roller press, material cake after extruding is sent in powder concentrator after by elevator, promoting, smash, roll, classification, tiny particle by pneumatic separation out, coarse granule together passes through ribbon conveyer with the compound of new feeding, enters the cycle extrusion process that the roll squeezer elevator forms; (3) purifying and dedusting process; In powder concentrator, smashed, roll the thin material that sorts out and by air-flow, brought to bag filter and gather dust, be discharged into the finished product transporter, by transporter, be transported to warehouse for finished product, air after dust cleaning partly enters atmosphere by circulating fan, and part enters powder concentrator and recycles.The cement quality of roll squeezer and ball mill Joint Production is compared with the cement quality of the whole grinding production of roll squeezer, and under specific area and the essentially identical condition of sulfur trioxide content, its performance of cement of the whole grinding production of roll squeezer has following defect: first; Particle forms medium and small fine powder amount in 5 microns and obviously on the low side greater than the meal amount of 30 microns, and the particle 80% or more concentrates between 10~30 microns, and grain diameter is narrower, and particle diameter is more even, and its gap is just larger, causes the water requirement increase.Second; The electron microscope observation discovery, its cement granules shape is corner angle and zigzag more, or in the form of sheets, strip, needle-like etc., and rough, with circular not the conforming to ellipse of cement granules requirement.They are three years old; Gypsum is pulverized thin not, and its hydration rate is slow, and deferred action is not strong, and its cement is anxious solidifying.The whole grinding production of roll squeezer and ball mill Joint Production and roll squeezer is compared on energy consumption, final grinding system of roll squeezer is energy-conservation 20%~50%, and volume increase 30%~60%. is by above-mentioned reason; More energy-conservation, it is due to pipe ball mill useless in its production system that the whole grinding of the roll squeezer that output is higher is not applied, so the cement of producing does not meet the quality requirement of cement on grain composition and grain shape.
Now the roll squeezer for manufacture of cement has two transmissions and single-drive, is all by two, and size is identical, and roll surface is welded with decorative pattern but opposed flattened does that roller is molecular in relative rotation.The material that material is produced by the material in the current stabilization storehouse on roll squeezer top is pressed by the feeding of roller top, along with two relative running materials of roller clamped into, and under high pressure be squeezed into the low fine powder that is full of crackle of intensity.During roll squeezer work, require high pressure, stable, full material.When present roll squeezer is worked, require the current stabilization storehouse that certain material will be arranged, can not operate by hole capital after selling all securities, otherwise produce material, press; The roll surface of roller press opposed flattened is unfavorable for that the pincers of expecting enter; The roll squeezer power consumption of under high pressure working.
Now the powder concentrator for manufacture of cement carries out primary election with " V " type static powder separating machine, allows thick material and fines separate, and by dynamic powder concentrator, carries out finished product choosing eventually; " V " type static powder separating machine is because cavity is large, the wind speed and the air quantity that require are also large, add windward only disposable through selecting materials, its power consumption, because the deflector of " V " type static powder separating machine can not be distributed in material on deflector equably, cause wind to pass through from the few place of blanking, some fine powders in material could not be selected and return roll squeezer, increased the systemic circulation energy consumption.In dynamic powder concentrator, mainly contain two classes; One class is take the osepa high-efficient powder concentrator as representative, its powder concentrator main body is to establish cage rotor in a volute type cyclone cylinder, there is a circle guide vane its outer ring, sorted materials is fallen on spreading disk from the top feeding, material is shed by centrifugal force, coarse grain is subjected to the effect of centrifugal force and bottom, whereabouts separating chamber, after 3 wind selection by winnowing that are blown into via bottom, fine powder rises with the wind, and coarse grain falls into the cone bucket; When the powder of carrying secretly with the wind passed through guide vane, owing to being subjected to the cage rotor High Rotation Speed to produce the effect of centrifugal force, the guide vane of cage rotor threw away coarse dust to drop to bottom separating chamber, then falls into the cone bucket and drive out.Thinner powder is brought in cage rotor and is dished out by wind, then by dust-precipitator, is gathered into finished product.another kind of take the NHX high performance rotary powder separator as representative, its powder concentrator main body is a circular cyclone cylinder, inside establish the spreading rotating disk, material is fed by powder concentrator top charge door, fall with rotor all-in-one-piece spreading disk on, when rotor electric machine drives, material on spreading disk is under the effect of centrifugal force, radially throw away and be scattered in separating chamber, the air-flow that rises with rotation meets, thin is taken away by wind, select into finished product, thick while under the effect of centrifugal force, along the powder concentrator wall, dropping to dropping system, be subjected to carry out sorting for the second time under the weatherly effect of air inlet, fine powder rises with the wind, the thick cone that drops to is drawn off by the meal mouth.Above-mentioned two class dynamic powder concentrators have represented now and dynamically to have selected powder equipment for manufacture of cement; Be characterized in advancing powder by top, powder is subjected to parts High Rotation Speed in the effect of air-flow and powder concentrator powder to be produced to the effect of centrifugal force in powder concentrator; The counter motion under the effect of centrifugal force of thick powder breaks away from air-flow and drops to cone, and the reverse centrifugal force of thin powder, less than wind-force, is taken away by wind, selects finished product.
When dynamic powder concentrator selects powder, allow thick powder under centrifugal action, counter motion breaks away from air-flow and drops to cone, is the effect of powder concentrator to the motion generation opposite force of whole section gas material stream in fact, powder concentrator consumes energy very much like this, and the effect that system fan will overcome the opposite force of powder concentrator is also consumed energy.
Summary of the invention: the object of the invention is to propose a kind of cement grinding method and production system to reach the grain composition of improving cement and grain shape with the quality requirement that conforms to cement and the more energy-conservation whole grinding of abrasive crushing.
The present invention is by crushing after grinding grinding to deliver to again and select powder equipment to select qualified cement fine powder to realize goal of the invention in the cement flour abrasive material, adding thin steel ball abrasive or with thin steel ball, equally have the material of pulverizing grinding function after crushing equipment crushing grinding, by elevator, to be delivered to together crushing equipment joint group.technical scheme of the present invention is the serrated roller press that design makes new advances, multiple roll roll squeezer joint group and return air select the powder storehouse, select powder impeller powder concentrator, the spiral centrifugal separator tube, adopt the circulation of adjustable speed to select powder blower fan and dust collecting fan, form new cement grinding method and production system the cement raw material that is added with thin steel ball is carried out to grinding processing, for the optimal case of the serrated roller press of production system of the present invention design is single-drive serrated roller press, the roll surface of roll squeezer becomes profile of tooth, wherein the roll surface of fixed roll (2) is larger than the roll surface of action roller (1), the circular pitch of a large tooth, the action roller of two pressure rollers (1) moves through the interlock dentition and is transmitted by fixed roll (2), two pressure rollers rotate with the interlock dentition synchronous, it is all the flat tooth (3) of roll-in and material feeding that one remaining tooth of pointed tooth (4) of using except buildup is respectively arranged on fixed roll (2) and action roller (1), due to the many teeth of fixed roll (2) gear ratio action roller (1) number of teeth, the pointed tooth (4) of fixed roll (2) often circles total corresponding with next tooth of action roller (1), pointed tooth (4) circulation of fixed roll (2) is corresponding with each tooth of action roller (1) when work like this, with the pointed tooth pressure break, remove action roller (1) between cog and be stained with the material that connects, the pointed tooth (4) of same action roller (1) is removed too the upper between cog of fixed roll (2) and is stained with the material that connects, when no material does not dally, the tooth of two pressure rollers mutually clamps into but is not in contact with one another in order to avoid weares and teares, having material to enter to carry out roll-in while pulverizing, the flat tooth (3) of serrated roller press two pressure rollers can be well by material, tooth enters to sting into carrying out roll-in.The roll surface of profile of tooth is the same applicable with two live-roller press at used single-drive.By many small-sized multiple roll roll squeezer overlapping compositions, the multiple roll roll squeezer is comprised of the pressure roller more than two pairs for the multiple roll roll squeezer joint group of production system of the present invention design.Multiple roll serrated roller press is by three pairs of stitchers during overlapping the composition; When multiple roll serrated roller press was two live-roller press, the fixed roll of middle a pair of pressure roller and action roller were respectively by two driven by motor, and fixed roll drives up and down two fixed roll rotating in same directions by transmission system; Action roller drives up and down two action roller rotating in same directions by transmission system, and action roller and fixed roll rotate in opposite directions, and the minimum spacing of action roller and fixed roll is that crown is to crown and do not contact.When the capable roll squeezer of multiple roll tooth is single live-rollers press, the fixed roll of middle a pair of pressure roller is by driven by motor, by the fixed roll of driven by motor, by transmission system, drive up and down two fixed roll rotating in same directions, by the fixed roll of driven by motor, by transmission system, drive three action rollers and do backward rotation.The operating pressure of multiple roll roll squeezer joint group is enough to powder and fines are carried out to roll-in and grinding, and such design is in order to energy-conservation and powder and fines are carried out to repeatedly roll-in, with grain composition and the grain shape of improving cement.the powder equipment that selects that designs for production system of the present invention has return air to select powder storehouse (5), selects powder impeller powder concentrator (19) and spiral centrifugal separator tube (41), return air selects powder storehouse (5), by return air, select powder storehouse (5) and cone bucket of the coarse fodder under it (11) to form, there is a charging aperture (6) at middle part on return air selects powder storehouse (5), there is tilting deflector (9) at middle part in return air selects powder storehouse (5), deflector (9) rear end selects powder storehouse (5) bulkhead to be connected with return air, the middle part of leading portion in return air selects powder storehouse (5), deflector (9) dual-side selects powder storehouse (5) bulkhead to be connected with return air, deflector (9) and return air select powder storehouse (5) bulkhead to form air-return duct (10), below in charging aperture (6), one air inlet (7) is arranged at the top of selecting powder storehouse (5) bulkhead to be connected with return air in deflector (9) rear end, at return air, select powder storehouse (5) lower side that an air outlet (8) is arranged, when selecting powder work, material enters return air by charging aperture (6) and selects under powder storehouse (5) and drop on deflector (9) front end, material on deflector (9) drops in coarse fodder cone bucket (11) again, at first the wind that air inlet (7) advances carry out selection by winnowing for the first time by the blanking stream that charging aperture (6) drops to deflector (9), wind after selection by winnowing selects at return air under the block resistance of powder storehouse (5) bulkhead and circles round for the first time, by air-return duct (10), by the blanking that deflector (9) falls into coarse fodder cone bucket (11), carry out selection by winnowing for the second time for the second time, requirement according to selection by winnowing, the number that can set up deflector (9) allows wind Multiple through then out blanking stream carry out effective selection by winnowing, the coarse fodder of not taken away by selection by winnowing falls in coarse fodder cone bucket (11), and fines and the powder by wind, taken away out enter by ventilation duct the lower whirlwind entrance (37) that selects powder impeller powder concentrator (19) through lower air outlet (8), select powder impeller powder concentrator (19) by the casing (20) of circle and the buncher above it (21) and under fine powder cone bucket (22) form ectosome, bottom in circular outer cage (20) is the whirlwind storehouse (23) of selecting materials, whirlwind is selected materials on storehouse (23) to have and is selected powder impeller (24) by variable speed electric motors, particularly (21) driven rotary, select the upper bearing (metal) of powder impeller (24) to be fixed on outer cage (20), lower bearing is fixed in outer cage (20) by three built-in beams (18), select powder impeller (24) by selecting powder impeller shaft (25) and columnar inner barrel (26) and outer cylinder body (27) to form main body, its inner barrel (26) upper and lower end face seals and is connected with selecting powder impeller shaft (25), outer cylinder body (27) is by selecting powder panel (28) and selecting powder backboard (29) to be connected with inner barrel (26), the space that outer cylinder body (27) and inner barrel (26) fold does not select the powder backboard (29) that selects of powder slotted eye to be divided into and impeller shaft (25) eight the identical De Xuanfen of size roads (31) and eight material dropping channels (32) that size is identical in the same way by eight with select powder panel (28) and eight that select powder slotted eye (30), Xuan Fen road (31) is to select powder impeller (24) direction of rotation fixed, front is that to select powder backboard (29) back be to select powder panel (28), select powder panel (28) and outer cylinder body (27) root friendship place to have and get rid of material mouthful (33), Xuan Fen road (31) ventilates up and down, its front of material dropping channel (32) is that to select powder panel (28) back be to select powder backboard (29), it seals up and down, on the outer cylinder body (27) in the outside, have getting rid of of blanking and expect mouthful (33), Xuan Fen road (31) is alternate with material dropping channel (32), selecting powder impeller (24) upper end to be connected with selecting powder impeller (24) work, what periphery was connected with outer cage (20) is partition panel (34), partition panel (34) forms wind chamber (35) with outer cage (20) top, wind chamber (35) periphery has upper whirlwind outlet (36), the number of upper whirlwind outlet (36) is fixed by the number of the spiral centrifugal separator tube (41) of joining outward, when selecting powder work, wind selects secondary selection by winnowing return air fines and the powder in powder storehouse (5), selected through lower whirlwind entrance (37) band people whirlwind, to select powder storehouse (23) by ventilation duct, fines throws away and distinguished and admirablely along wall, falls into fines cone bucket (22) under the effect of cyclone centrifugal power, powder and some little fineves enter Xuan Fen road (31) from selecting under powder impeller (24) with the wind, select powder impeller (24) High Rotation Speed under the drive of variable speed electric motors, particularly (21), in little fines and some powder Zai Xuanfen roads (31), be subjected to the effect of self inertia and select powder panel (28) to rotatablely move under the acting in conjunction of the centrifugal force that little fines and powder are produced and block resistance power to be close to select on powder panel (28) to move upward, underproof powder under the effect of centrifugal force, be thrown to select powder panel (28) and outer cylinder body (27) intersection get rid of material mouthful (33) time throw away and drop to whirlwind and select powder storehouse (23), the qualified powder of underproof powder and minority through choosing on powder panel (28) select powder slotted eye (30) time, by selecting powder slotted eye (30) to enter material dropping channel (32), the material that enters material dropping channel (32) has lost the effect of wind-force, be subjected to self gravitation and material dropping channel (32) rotation under the effect of the centrifugal force of its generation, through getting rid of, expecting that mouthful (33) throw away disengaging and select powder impeller (24), then drop to whirlwind and select powder storehouse (23), little fines and underproof material drop to fines cone bucket (22) along wall, qualified powder is taken up and is entered Xuan Fen road (31) by whirlwind again, qualified fine powder enters wind chamber (35) by Xuan Fen road (31) with the wind, upper whirlwind outlet (36) by wind chamber (35) periphery is out entered in the blast pipe (43) of spiral centrifugal separator tube (41) by ventilation duct again.spiral centrifugal separator tube (41) forms main body by three pipes, centre is a long discharge pipe (44), discharge pipe (44) overcoat has a larger blast pipe (43), bind in blast pipe (43) upper end, blast pipe air inlet (49) on it is connected with the upper whirlwind outlet (36) of selecting powder impeller powder concentrator (19) by ventilation duct, the space that blast pipe (43) and discharge pipe (44) fold is spiral spiral centrifugal ventilating duct (45), on the outer wall blast pipe (43) of spiral centrifugal ventilating duct (45), there are a plurality of vertical taking off to expect mouthful (46), it in blast pipe (43) lower end, is blast pipe cone bucket (47), discharge pipe (44) lower end is on blast pipe cone bucket (47), discharge pipe (44) upper end passes outside spiral centrifugal separator tube (41), blast pipe (43) overcoat be to receive tube cells (42), bind and with any pipeline, be not connected in receipts tube cell (42) upper end, receiving tube cell (42) lower end is to receive tube cell cone bucket (48), receipts tube cell cone buckets (48) are enclosed within outside blast pipe cone bucket (47) and do not interconnect, with anti-channeling wind effect collection powder, when the work of collection powder, with the wind of fine powder, from upper whirlwind, exporting (36) enters after blast pipe air inlet (49) and enters the spiral centrifugal ventilating duct (45) that blast pipe (43) and discharge pipe (44) fold and carry out continuous cyclone centrifugal formula collection powder by ventilation duct, powder is being thrown under the effect of cyclone centrifugal power on spiral centrifugal ventilating duct (45) outer wall, when through taking off on outer wall, expecting mouth (46), by taking off material mouthful (46), enter receipts tube cell (42), owing to receiving in tube cell (42), there is no strong air-flow, powder enters to receive after tube cells (42) just to drop to receive in tube cell cone bucket (48) and is gathered into finished product, with after wind footpath spiral centrifugal ventilating duct (45) shedding of fine powder by spiral centrifugal ventilating duct (45) lower end out, in blast pipe cone bucket (47) top, remake free cyclone centrifugal and select powder, from the powder that spiral centrifugal ventilating duct (45) falls and free cyclone centrifugal throws away, fall into blast pipe cone bucket (47) and be gathered into finished product, distinguished and admirable after shedding entered by discharge pipe (44) lower end, discharge pipe air outlet (50) by discharge pipe (44) upper end goes out spiral centrifugal separator tube (41).
cement production system of the present invention is by the new serrated roller press that designs for the present invention, multiple roll roll squeezer joint group and return air select powder storehouse (5), select powder impeller powder concentrator (19), spiral centrifugal separator tube (41) forms with existing equipment, its production system is apparatus for feeding, the discharge bucket of apparatus for feeding is connected with the lower feed hopper of reinforced elevator, reinforced elevator top discharge bucket is communicated with the current stabilization storehouse, it below the current stabilization storehouse, is the serrated roller press, serrated roller press hopper is connected with feed hopper under circulating lifting machine, circulating lifting machine top discharge bucket is connected with the charging aperture above multiple roll roll squeezer joint group, discharging opening under multiple roll roll squeezer joint group selects powder storehouse (5) charging aperture to be connected with the return air under it, return air selects the lower air outlet (8) in powder storehouse (5) to be connected with the lower whirlwind entrance (37) that selects powder impeller powder concentrator (19) by ventilation duct, select the upper whirlwind outlet (36) of powder impeller powder concentrator (19) to be communicated with the blast pipe air inlet (49) of spiral centrifugal separator tube (41) by ventilation duct, return air selects the coarse fodder cone bucket (11) in powder storehouse (5) and selects the fines cone bucket (22) of powder impeller powder concentrator (19) to be connected with the current stabilization storehouse under it, receipts tube cell cone bucket (48) and the blast pipe cone bucket (47) of spiral centrifugal separator tube (41) are connected with the finished product conveying equipment to warehouse for finished product, the air inlet of adjustable speed circulating fan selects the air inlet (7) of powder storehouse (5) to be connected with return air, and the air inlet of adjustable speed circulating fan is connected with the discharge pipe air outlet (50) of spiral centrifugal separator tube (41), the blast pipe of dust-precipitator is connected with the discharge pipe air outlet (50) of spiral centrifugal separator tube (41), and the discharge pipe of dust-precipitator communicates with atmosphere, and the dust-precipitator blower fan is the adjustable speed blower fan.
the grinding method of cement production system of the present invention is comprised of material circulation and wind circulation, its material circulation is that the lower feed hopper of reinforced elevator delivered to virgin material by apparatus for feeding, reinforced elevator enters the current stabilization storehouse by reinforced elevator top discharge bucket after virgin material is promoted, thin steel ball and the steel ball powder of the different-grain diameter after thin steel ball and thin steel ball wear and tear are housed in the current stabilization storehouse, also has after circulating the old material that enters the current stabilization storehouse, virgin material and old feed collet are with thin steel ball and the thin levigate steel ball powder of steel ball, entering together the roll-in of serrated roller press pulverizes, compound after roll-in enters further roll-in in multiple roll roll squeezer joint group and grinds grinding after by circulating lifting machine, being promoted, after the roll-in grinding, entering return air under multiple roll roll squeezer joint group selects in powder storehouse (5) and carries out sorting, material enters return air by charging aperture (6) and selects under powder storehouse (5) and drop on deflector (9) front end, material on deflector (9) drops in coarse fodder cone bucket (11) again, at first the wind that air inlet (7) advances carry out selection by winnowing for the first time by the blanking stream that charging aperture (6) drops to deflector (9), wind after selection by winnowing selects at return air under the block resistance of powder storehouse (5) bulkhead and circles round for the first time, by air-return duct (10), by the blanking that deflector (9) falls into coarse fodder cone bucket (11), carry out selection by winnowing for the second time for the second time, thin steel ball and steel ball powder also have thick material by selection by winnowing, to be gone out to fall into coarse fodder cone bucket (11) return air selects powder storehouse (5) in to fall in the current stabilization storehouse again and recycle, fines and powder are by the further sorting of the selected powder impeller powder concentrator (19) of wind band, wind selects secondary selection by winnowing return air fines and the powder in powder storehouse (5), selected through lower whirlwind entrance (37) band people whirlwind, to select powder storehouse (23) by ventilation duct, fines throws away and distinguished and admirablely along wall, falls into fines cone bucket (22) under the effect of cyclone centrifugal power, powder and some little fineves enter Xuan Fen road (31) from selecting under powder impeller (24) with the wind, select powder impeller (24) High Rotation Speed under the drive of variable speed electric motors, particularly (21), in little fines and some powder Zai Xuanfen roads (31), be subjected to the effect of self inertia and select powder panel (28) to rotatablely move under the acting in conjunction of the centrifugal force that little fines and powder are produced and block resistance power to be close to select on powder panel (28) to move upward, underproof powder under the effect of centrifugal force, be thrown to select powder panel (28) and outer cylinder body (27) intersection get rid of material mouthful (33) time throw away and drop to whirlwind and select powder storehouse (23), the qualified powder of underproof powder and minority through choosing on powder panel (28) select powder slotted eye (30) time, by selecting powder slotted eye (30) to enter material dropping channel (32), the material that enters material dropping channel (32) has lost the effect of wind-force, be subjected to self gravitation and material dropping channel (32) rotation under the effect of the centrifugal force of its product dirt, through getting rid of, expecting that mouthful (33) throw away disengaging and select powder impeller (24), then drop to whirlwind and select powder storehouse (23), little fines and underproof material drop to fines cone bucket (22) along wall, qualified powder is taken up and is entered Xuan Fen road (31) by whirlwind again, fines and thick powder are selected and fall into fines cone bucket (22) and fall into the recirculation of current stabilization storehouse again.qualified powder enters wind chamber (35) with the wind after selecting powder impeller (24), the mixing wind of wind chamber (35) exports (36) with fine powder by upper whirlwind and by blast pipe air inlet (49), enters spiral centrifugal separator tube (41) by ventilation duct, fine powder enters and receives tube cells (43) and drop to receive in tube cell cone bucket (48) again and be gathered into finished product at the material mouthful (46) that takes off through blast pipe (43) under the effect of continuous centrifugal power in spiral centrifugal ventilating duct (45), wind after the shedding of spiral centrifugal ventilating duct is out done the shedding of free spiral rotation cyclone centrifugal formula in blast pipe cone bucket (47) top again by spiral centrifugal ventilating duct (45) end opening, the powder that breaks away from from mix wind drops in blast pipe cone bucket (47) and is gathered into finished product, the finished product of receiving in tube cell cone bucket (48) and blast pipe cone bucket (47) is delivered to warehouse for finished product by the finished product conveying equipment again, with the wind of a small amount of fine powder, through dust-precipitator, being gathered into finished product later enters the finished product conveying equipment and delivers to warehouse for finished product.Its wind circulation is jointly to be completed by adjustable speed circulating fan and adjustable speed dust collecting fan; The wind of adjustable speed circulating fan air outlet delivers to by ventilation duct the air inlet (7) that return air selects powder storehouse (5), wind enters after air inlet (7) at first the blanking stream that drops to deflector (9) by charging aperture (6) and carries out selection by winnowing for the first time, advances for the first time the wind of selection by winnowing and by air-return duct (10) revolution, by deflector (9), drops to the interior blanking stream of coarse fodder cone bucket (11) for the second time again and carry out selection by winnowing for the second time; the wind of selection by winnowing out enters by ventilation duct the lower whirlwind entrance (37) that selects powder impeller powder concentrator (19) by air outlet (8) for the second time, at whirlwind, selecting powder storehouse (23) to make the cyclone centrifugal formula selects the laggard selected powder impeller of powder (24) to select powder again, by the wind that selects powder impeller (24), from upper whirlwind, export (36) and out by ventilation duct, entered the blast pipe air inlet (49) of spiral centrifugal separator tube (41), wind goes out spiral centrifugal separator tube (41) by discharge pipe outlet (50) after centrifugal shedding again at spiral centrifugal ventilating duct (45), wind is got back to the air inlet recirculation of adjustable speed circulating fan again by ventilation duct.The suction of adjustable speed dust collecting fan, from the wind of production cycle internal system, allows production system not emit cigarette ash, then enter atmosphere after the dust-precipitator dedusting.
grinding system and the grinding method thereof of the whole grinding of abrasive crushing of the present invention are compared with present cement production system and grinding method thereof, its advantage is: in production method of the present invention, thin steel ball is added in the grinding material and be mixed together roll-in with material, this is the processing method that present roll-in grinding does not have, its advantage is the thin steel ball of the different-grain diameter after the thin steel ball experience wear that adds of the thin steel ball that newly adds and different time and the pulverizing that thin steel ball powder has together formed the roll-in grinding, grinding and abrasive action body, the steel ball that can form same particle diameter mainly for the grinding material of same particle diameter under the roll-in of roll squeezer, be easy to by in the grinding material in the form of sheets, strip, the powder crushing of the shapes such as needle-like, the thin steel ball of grinding material and different-grain diameter mutually pushes slippage and bumps friction by the corner angle of powder when roll-in, the sawtooth profile, coarse appearance is hit wiping and is ground smooth, this is conducive to produce the spherical and oval powder of the different-grain diameter that meets the cement quality requirement, with the steel ball of particle diameter, for the powder of same particle diameter, pulverizing is the most effective grinding mode, for a large steel ball levy concerning be the pipe ball mill of powder of the point of impingement, roll squeezer steel ball roll-in grinding is far above the pipe ball mill with do not have showing of refinement steel ball to use roll squeezer on mill efficiency and available energy dissipation.In the grinding material, add thin steel ball to carry out roll-in, for be fines and powder, for carrying out effective roll-in grinding spy, the fines to being added with thin steel ball and powder designed serrated roller press of the present invention, the serrated roller press is compared with used roll squeezer, its advantage be profile of tooth roll surface in the situation that not material press also and can be well by containing the grinding fines of thin steel ball and powder tooth, to enter that pressure roller is pulverized and grinding; When crown is changed by the material bed of roll-in with mark of mouth during in relative roll-in with the variation of crown and mark of mouth on body, the thin steel ball of pressurized and powder extruding mutually, slippage, friction, collision, so expeditiously the roll-in grinding and in high quality the roll-in grinding go out circle and the oval-shaped cement powder of various particle diameters.The pressure of used roll squeezer is large, and its power consumption is also large, and material passes through the roll squeezer roll-in once and mistake, and multiple roll roll squeezer joint group of the present invention is by many small-sized overlapping the forming of multiple roll serrated roller press, and its operating pressure is enough to fines and powder are carried out to the roll-in grinding.Multiple roll roll squeezer joint group of the present invention can carry out repeatedly effectively roll-in grinding to powder when energy consumption is equally large, and the only effective ground roll of used roll squeezer is pressed once, so multiple roll roll squeezer joint group of the present invention is higher than the effect of used roll squeezer roll-in grinding.in order the fines from being added with thin steel ball and powder, the sorting of three kinds of material of thin steel ball, fines, powder to be opened, controls thin steel ball and fines again roll-in mixing ratio and effectively by qualified fine powder separation and collection and the simplification production system is ad hoc has counted return air of the present invention and select powder storehouse (5) and select powder impeller powder concentrator (19) spiral centrifugal separator tube (41) in addition, the disposable process of wind of " V " type powder concentrator is selected materials, and return air of the present invention selects the wind in powder storehouse under the effect of air-return duct (10), can allow the wind revolution repeatedly through selecting materials to reach, fully select fines and powder grinding efficiency higher, and " V " type powder concentrator is not all right, it is the fast rotational by powder concentrator spare that used dynamic powder concentrator selects powder, effect to the material that passes through stream and the reverse centrifugal force of distinguished and admirable generation, defective thick powder is thrown away to air-flow select powder under the effect of reverse centrifugal force, produce this reverse centrifugal force consumes energy very much, and the present invention selects powder impeller (24) rotation of selecting of powder impeller powder concentrator (19) to select powder, to collect and catch underproof meal, select the rotation of powder impeller (24) can not affect material stream and distinguished and admirable flowing, it is not flowed and produces the effect of reverse power, so powder impeller (24) power that selects of powder impeller powder concentrator (19) that selects of the present invention selects powder to select powder more energy-conservation than the power of present power powder concentrator, due to the width that select powder blade of the length of selecting powder impeller (24) De Xuanfen road (31) much larger than the cage rotor of present power powder concentrator, so of the present invention select powder impeller powder concentrator (19) select powder impeller (24) grinding efficiency far above present power powder concentrator, for more effectively by qualified fine powder from separated and collected wind, allow the wind cycle operation of circulating fan effectively move, the material that the present invention allows gas carry secretly spiral centrifugal separator tube (41) separated from the gas increases discharge pipe on used cyclone, increase a blast pipe (43) and spiral centrifugal ventilating duct (45), powder is done continuous cyclone centrifugal formula collection powder in spiral centrifugal ventilating duct (45), when wind is being carried a small amount of powder secretly under spiral centrifugal ventilating duct (45) out the time, do again the collection powder of used cyclone formula, because spiral centrifugal separator tube of the present invention (41) has been established the spiral centrifugal ventilating duct (45) of active set powder more so spiral centrifugal separator tube of the present invention (41) is higher than used cyclone collection powder efficiency than used cyclone more.With existing grinding production system, compare; Production system of the present invention is a line setting from top to bottom, upper is multiple roll roll squeezer joint group, under it, be that the return air that connects together selects powder storehouse (5), with select powder impeller powder concentrator (19) to also have spiral centrifugal separator tube (41), under it, being the current stabilization storehouse, is the serrated roller press under the current stabilization storehouse, then proposes circulation on by circulating lifting machine, being expected, this operation system structure is reasonable, and institute takes up space few; This production system has serrated roller press and multiple roll roll squeezer joint group more energy-conservation and that efficiency is higher also have return air to select powder storehouse (5) and select powder impeller powder concentrator (19) spiral centrifugal separator tube (41) in addition owing to having added in its production system composition of the thin steel ball of abrasive, so this production system is also more energy-conservation, efficiency is also higher; The adjustable speed circulating fan of this production system and the wind of dust collecting fan, due to all by selecting powder equipment, take full advantage of various wind energies and select powder, the resistance of the resistance of powder much smaller than the selection by winnowing powder of dust-precipitator blower fan selected in the wind circulation of circulating fan, its power consumption is lower, dust-precipitator of the present invention mainly works the effect of gathering dust, adjustable speed circulating fan of the present invention and dust collecting fan can need in time be regulated wind speed to reach energy-conservation and high yield according to what produce when producing, so this production system is also more energy-conservation in the wind circulation.
The present invention adds thin steel ball in the pulverizing cement material, and also have return air to select powder storehouse (5) and select powder impeller powder concentrator (19) spiral centrifugal separator tube (41) in addition for the crushing grinding is added with the higher more energy-conservation serrated roller press of efficiency and the multiple roll roll squeezer joint group that the cement material of thin steel ball invents, the grinding system and the grinding method thereof that together with existing equipment, form the whole grinding of the higher more energy-conservation abrasive crushing of efficiency are produced cement conforms to quality requirements on grain composition and grain shape goal of the invention, have also just reached invention task of the present invention
Accompanying drawing explanation: Fig. 1 is profile of tooth surface structure and the cooperation schematic diagram of the single-drive serrated roller press of the whole grinding of abrasive crushing of the present invention.
Fig. 2 is the structural representation that the secondary selection by winnowing return air of the whole grinding of abrasive crushing of the present invention selects the powder storehouse.
Fig. 3 is the structural representation that four selection by winnowing return air of the whole grinding of abrasive crushing of the present invention select the powder logical sequence.
Fig. 4 is the structural representation that selects powder impeller powder concentrator of the whole grinding of abrasive crushing of the present invention.
Fig. 5 be Fig. 4 of the present invention select powder impeller side TV structure schematic diagram.
Fig. 6 be Fig. 4 of the present invention select powder impeller plan structure schematic diagram.
Fig. 7 be Fig. 4 of the present invention select the powder impeller select powder panel construction schematic diagram.
Fig. 8 is the structural representation of the spiral centrifugal separator tube of the whole grinding of abrasive crushing of the present invention.
Fig. 9 is the structural representation of the spiral centrifugal separator tube of the whole grinding of abrasive crushing of the present invention.
Figure 10 is the combining structure schematic diagram of Fig. 2 of the present invention, Fig. 4 and Fig. 8
Figure 11 is the plan structure schematic diagram of figure Figure 10 of the present invention.
The specific embodiment: describe two embodiment of the present invention in detail below in conjunction with accompanying drawing.
Embodiment 1: with reference to figure 1, Fig. 2, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11
the device systems of the whole grinding of abrasive crushing of the present invention forms: the virgin material conveying equipment is connected and presses with feed hopper under reinforced elevator, reinforced elevator top discharge bucket is connected with the current stabilization storehouse, the serrated roller press is set under the current stabilization storehouse, serrated roller press hopper is connected with feed hopper under circulating lifting machine, circulating lifting machine top discharge bucket is connected with multiple roll roll squeezer joint group charging aperture, multiple roll roll squeezer joint group lower discharge port selects the charging aperture (6) of powder storehouse (5) to be connected with secondary selection by winnowing return air, arrange connect together select powder equipment secondary selection by winnowing return air to select powder storehouse (5) and select powder impeller powder concentrator (19) spiral centrifugal separator tube (41) in addition, secondary selection by winnowing return air selects the coarse fodder cone bucket (11) in powder storehouse (5) and selects the fines cone bucket (22) of powder impeller powder concentrator (19) to be connected with the current stabilization storehouse under selecting powder equipment by tremie pipe, select under powder equipment and have the finished product conveying equipment to be connected with blast pipe cone bucket (47) with the receipts tube cell cone bucket (48) of spiral centrifugal separator tube (41), the air outlet of adjustable speed circulating fan selects the air inlet (7) of powder storehouse (5) to be connected by ventilation duct and the secondary selection by winnowing return air that selects powder equipment, secondary selection by winnowing return air selects the air outlet (8) of powder storehouse (5) to be communicated with the lower whirlwind entrance (37) that selects powder impeller powder concentrator (19) by ventilation duct, select the upper whirlwind outlet (36) of powder impeller powder concentrator (19) to be connected with the blast pipe air inlet (49) of spiral centrifugal separator tube (41) by ventilation duct, the discharge pipe air outlet (50) of spiral centrifugal separator tube (41) is communicated with the air intake vent of circulating fan by ventilation duct, the air inlet of dust-precipitator is connected with the discharge pipe air outlet (50) of spiral centrifugal separator tube (41) by ventilation duct, and the air outlet of adjustable speed dust-precipitator blower fan leads directly to atmosphere
the grinding method of the whole grinding of abrasive crushing of the present invention is by apparatus for feeding, virgin material to be delivered to the lower feed hopper of reinforced elevator, after by reinforced elevator, virgin material being promoted, by the top discharge bucket, enter the current stabilization storehouse, the material and for thin steel ball and the steel ball powder of the different-grain diameter after the thin steel ball of roll-in and thin steel ball wearing and tearing of haveing been friends in the past being housed in the current stabilization storehouse, virgin material in the current stabilization storehouse, old material, the thin steel ball of various particle diameters and steel ball powder compound enter serrated roller press under the current stabilization storehouse together carry out roll-in and pulverize grinding after, enter the lower feed hopper of circulating lifting machine, top discharge bucket by circulating lifting machine after lifting enters multiple roll roll squeezer joint group, compound in multiple roll roll squeezer joint group through the roll-in of nine pairs of stitchers of three multiple roll serrated roller press, pulverize, after grinding, by charging aperture (6), falling into secondary selection by winnowing return air selects in powder storehouse (5) and carries out selection by winnowing, at first compound after the roll-in grinding is entered by air inlet (7) between charging aperture (6) and deflector (9) the wind that mixes carries out selection by winnowing for the first time, big and heavy compound drops to deflector (9), again by fall coarse fodder cone bucket (11) under back selection by winnowing powder storehouse (5) of deflector (9), the mixing wind of selection by winnowing is being carried the fines of selection by winnowing for the first time and powder secretly and is being selected convolution under the stopping of powder bulkhead by air-return duct (10) at return air for the first time) enter in the material that deflector (9) drops to coarse fodder cone bucket (11) and carry out selection by winnowing for the second time, big and heavy material falls into coarse fodder cone bucket (11) and falls into the current stabilization storehouse again and circulate, fines and powder enter by lower whirlwind entrance (37) whirlwind that selects under powder impeller powder concentrator (19) by ventilation duct by the mixing wind of selection by winnowing for the second time and select powder storehouse (23) to carry out the cyclone centrifugal formula to select powder, fines falls into fines cone bucket (22) under it and falls into the current stabilization storehouse again and circulate, powder is with mixing wind by selecting the following De Xuanfen road (31) of powder impeller (24) to enter powder impeller (24), entering the meal that the mixing wind that selects powder impeller (24) carries secretly is selecting under powder impeller (24) fast rotational by selecting powder panel (28) gear to obtain, the meal that obtains of gear under the effect of self inertia and centrifugal force by select on powder panel (28) outside getting rid of that material mouth (33) throws away or by selecting the powder slotted eye (30) that selects on powder panel (28) to enter material dropping channel (32), the material that enters material dropping channel is thrown away by the material mouthful (33) that gets rid of of material dropping channel (32) outside again, the whirlwind that the material that throws away drops to bottom selects powder storehouse (23), then drops to fines cone bucket (22), and thin powder selects the mixed wind in powder storehouse (23) to take up to enter at whirlwind again and selects powder impeller (24), qualified fine powder is with mixing wind by selecting powder impeller (24) to enter wind chamber (35) again, controls the fineness of the powder by selecting powder impeller (24) and selects the rotating speed of the variable speed electric motors, particularly (21) of powder impeller (24) rotation to control by drive, the mixing wind of wind chamber (35) is being carried fine powder secretly and by upper whirlwind, is being exported (36) and by blast pipe air inlet (49), enter spiral centrifugal separator tube (41) by ventilation duct, fine powder enters and receives tube cells (43) and drop to receive in tube cell cone bucket (48) again and be gathered into finished product at the material mouthful (46) that takes off through blast pipe (43) under the effect of continuous centrifugal power in spiral centrifugal ventilating duct (45), wind after the shedding of spiral centrifugal ventilating duct is out done the shedding of free spiral rotation cyclone centrifugal formula in blast pipe cone bucket (47) top again by spiral centrifugal ventilating duct (45) end opening, the powder that breaks away from from mix wind drops in blast pipe cone bucket (47) and is gathered into finished product, the finished product of receiving in tube cell cone bucket (48) and blast pipe cone bucket (47) is delivered to warehouse for finished product by the finished product conveying equipment again, out by the discharge pipe air outlet (50) of spiral centrifugal separator tube (41), the air intake vent that is returned into the adjustable speed circulating fan by ventilation duct enters air inlet (7) recirculation in secondary selection by winnowing return air powder concentrator storehouse (5) in the effect leeward of blower fan to wind after shedding more again by ventilation duct finally, the blast pipe of dust-precipitator is connected with the discharge pipe air outlet (50) of spiral centrifugal separator tube (41), extract the wind of airduct (44), namely extract the wind of production system inside, allow production system not emit cigarette ash, the wind after the dust-precipitator dedusting enters atmosphere, the wind of adjustable speed circulating fan and adjustable speed dust collecting fan forms and mixes wind together through selecting powder equipment to participate in selection by winnowing.
Embodiment 2: with reference to figure 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11.
the device systems of the whole grinding of abrasive crushing of the present invention forms and is comprised of corase grind system and fine grinding system, the corase grind system is connected by under virgin material conveying equipment and reinforced elevator, on reinforced elevator, with corase grind current stabilization storehouse, be connected, the virgin material current stabilization arranges roll squeezer under storehouse, the roll squeezer hopper is connected with feed hopper under the corase grind circulating lifting machine, corase grind circulating lifting machine top discharge bucket selects the charging aperture (13) of powder storehouse (12) to be connected with four selection by winnowing return air shown in Figure 3, and what four selection by winnowing return air selected that the coarse fodder cone in powder storehouse (12) struggles against (16) and lower setting is that virgin material current stabilization storehouse is communicated with, four times selection by winnowing return air selects the air outlet (15) of powder storehouse (12) to select the air inlet (7) of powder storehouse (5) to be connected with the secondary selection by winnowing return air that selects powder equipment of fine grinding system, the fine grinding system is topmost the powder equipment that selects that connects together, there is secondary selection by winnowing return air to select powder storehouse (5) and select powder impeller powder concentrator (19) to also have spiral centrifugal separator tube (41), select the thin steel ball current stabilization storehouse under powder equipment to select the coarse fodder cone bucket (11) in powder storehouse (5) to be connected with secondary selection by winnowing return air, there is fines current stabilization storehouse to be connected with the fines cone bucket (22) that selects powder impeller powder concentrator (19), there is the finished product conveying equipment to be connected with blast pipe cone bucket (47) with the receipts tube cell cone bucket (48) of spiral centrifugal separator tube (41), the blanking machine that controlled revolution is arranged under thin steel ball current stabilization storehouse and fines current stabilization storehouse, the blanking machine hopper in two current stabilization storehouses is connected with the charging aperture of the multiple roll roll squeezer joint group that four multiple roll serrated roller press of lower setting form, multiple roll roll squeezer joint group hopper is connected with feed hopper under the fine grinding circulating lifting machine, fine grinding circulating lifting machine top discharge bucket selects the charging aperture (6) of powder storehouse (5) to be connected with secondary selection by winnowing return air, the air outlet of adjustable speed circulating fan first selects the air inlet (14) of powder storehouse (12) to be connected with four selection by winnowing return air of corase grind system by ventilation duct successively, four times selection by winnowing return air selects the air outlet (15) of powder storehouse (12) by ventilation duct and the secondary selection by winnowing return air of fine grinding system, to select the air inlet (7) of powder storehouse (5) to be connected again, by air outlet (8), with the lower whirlwind entrance (37) that selects powder impeller powder concentrator (19), be communicated with again, the air inlet (49) of the blast pipe (44) of and spiral centrifugal separator tube (41) last by upper whirlwind outlet (36) is communicated with the air inlet of out getting back to the adjustable speed circulating fan by ventilation duct again by the air outlet (50) of discharge pipe (44) and recycles.The air inlet of dust-precipitator is connected with the discharge pipe air outlet (50) of spiral centrifugal separator tube (41), and the discharge pipe of dust-precipitator leads directly to atmosphere.
the grinding method of the whole grinding of abrasive crushing of the present invention is: virgin material is delivered to reinforced elevator by feeder equipment, reinforced elevator is sent into corase grind current stabilization storehouse after virgin material is promoted, the roll squeezer that the material in corase grind current stabilization storehouse enters under it carries out roll-in, material after roll-in is pulverized enters four selection by winnowing return air by charging aperture (13) after by the corase grind circulating lifting machine, being promoted and selects powder storehouse (12) to carry out sorting, mixing wind selects the air inlet (44) of powder storehouse (12) to enter by four selection by winnowing return air, under the effect of air-return duct, pass through blanking four times, carry out selection by winnowing four times, at first the material that roll-in is pulverized selects the charging aperture (13) of powder storehouse (12) between the first deflector (69), forming the first blanking stream at four selection by winnowing return air, blanking drops to the upper second blanking stream that forms of the second deflector (69) by the first deflector (69) front end again, blanking on the second deflector (69) drops to the 3rd deflector (69) by front end again and forms the 3rd blanking stream, material on the 3rd deflector (69) drops to four selection by winnowing return air again and selects the coarse fodder cone bucket (16) in powder storehouse (12) to form the 4th blanking stream, mix wind and carry out selection by winnowing for the first time by the first blanking stream, after selection by winnowing, by air-return duct (60), by the second blanking stream, carry out selection by winnowing for the second time more for the first time, after selection by winnowing, by air-return duct (60), by the 3rd blanking stream, carry out selection by winnowing for the third time more for the second time, after selection by winnowing, by air-return duct (60), by the 4th blanking stream, carry out selection by winnowing the 4th time more for the third time, the coarse fodder after four selection by winnowing falls into the corase grind current stabilization storehouse that the coarse fodder cone bucket (16) under it falls into it under again and recycles, the mixed wind of thin material and powder takes up the air outlet (15) that selects powder storehouse (12) by four selection by winnowing return air and out through the secondary selection by winnowing return air that selects powder equipment that ventilation duct enters the fine grinding system, selects the air inlet (7) of powder storehouse (5) to carry out selection by winnowing, the fine grinding system selects powder equipment secondary selection by winnowing return air to select in the thin steel ball current stabilization storehouse under powder storehouse (5) to be equipped with the thin steel ball of various particle diameters after thin steel ball and thin steel ball wearing and tearing, select in the fines current stabilization storehouse under powder impeller powder concentrator (19) fines and the powder of wanting the roll-in grinding arranged, material in thin steel ball current stabilization storehouse and fines current stabilization storehouse is by the blanking machine blanking by a certain percentage of controlled revolution, quantitative thin steel ball and quantitative roll-in grinding material enter by quantitative mixed proportion in the multiple roll roll squeezer joint group of four multiple roll serrated roller press compositions it under and carry out the continuous roll-in grinding of ten secondaries, compound after ten secondary roll-in grindings promotes by the fine grinding circulating lifting machine charging aperture (6) that laggard selected powder equipment secondary selection by winnowing return air selects powder storehouse (5), entering secondary selection by winnowing return air selects the compound in powder storehouse (5) by the mixing wind of carrying fines and powder secretly that the corase grind system blows, to be carried out selection by winnowing in secondary selection by winnowing return air selects powder storehouse (5), at first compound selects between the charging aperture (6) of powder storehouse (5) and deflector (9) and carries out selection by winnowing for the first time at secondary selection by winnowing return air, big and heavy compound drops to deflector (9), by deflector (9), fall and select the coarse fodder cone bucket (11) under powder storehouse (5) toward secondary selection by winnowing return air again, the mixing wind of selection by winnowing is being carried the fines of selection by winnowing for the first time and powder secretly and is selected return air under the stopping of powder bulkhead to carry out selection by winnowing for the second time in by air-return duct (10), being entered the blanking that deflector (9) drops to coarse fodder cone bucket (11) at return air for the first time, the thin steel ball of heavy different particle diameter can not mixed wind be taken away and is dropped to coarse fodder cone bucket (11), then drops to the recirculation of thin steel ball current stabilization storehouse, the mixed wind of fines and powder is being carried secretly and by the air outlet (8) in secondary returning selection by winnowing powder storehouse (5), out by ventilation duct, is being entered the lower whirlwind entrance (37) that selects powder impeller powder concentrator (19) and at whirlwind, select powder storehouse (23) to carry out the cyclone centrifugal formula to select powder, and the fines cone bucket (22) that fines falls under it falls into the recirculation of fines current stabilization storehouse again, powder selects powder impeller (24) with mixing wind by selecting under powder impeller (24) De Xuanfen road (31) to enter, entering the meal that the mixing wind that selects powder impeller (24) carries secretly is selecting under powder impeller fast rotational by selecting powder panel (28) gear to obtain, the meal that gear obtains is thrown away by the material mouthful (33) that gets rid of that selects powder panel (28) outside under the effect of self inertia and centrifugal force, or by selecting the powder slotted eye (30) that selects on powder panel (28) to enter material dropping channel (32), the material that enters material dropping channel (32) is thrown away by the material mouthful (33) that gets rid of of material dropping channel outside again, the whirlwind that the material that throws away drops to bottom selects powder storehouse (23), then drops to fines cone bucket (22), and thin powder selects powder impeller (24) selecting the mixed wind in powder storehouse (23) to take up to enter again, qualified fine powder is with mixing wind by selecting powder impeller (24) to enter wind chamber (35), the fineness of the powder of control by selecting powder impeller (24) selects the rotating speed of the variable speed electric motors, particularly (21) of powder impeller (24) rotation to regulate and control by drive, the mixing wind of wind chamber (35) is being carried qualified fine powder secretly and by upper whirlwind, is being exported (36) and out by blast pipe air inlet (49), enter spiral centrifugal separator tube (41), fine powder is done the shedding of continuous centrifugal formula in spiral centrifugal ventilating duct (45), powder throws away to enter after receiving tube cells (42) to drop to and receives tube cell cone bucket (48) and be gathered into finished product at the getting rid of material mouthful (46) that is thrown under the effect of centrifugal force on blast pipe (43), mixing wind after spiral centrifugal ventilating duct (45) shedding is out done the shedding of free spiral rotation cyclone centrifugal formula in blast pipe cone bucket (47) top again by spiral centrifugal ventilating duct (45) end opening, the powder that breaks away from from mix wind drops to blast pipe cone bucket (47) and is gathered into finished product, finished product in the pipe cone of calling prisoners in after letting them out for exercise struggles against (48) and the blast pipe cone struggles against (47) is transported to warehouse for finished product by the finished product conveying equipment, mixing wind after shedding out by spiral centrifugal separator tube (41) discharge pipe air outlet (50) finally, by ventilation duct, entered the air intake vent of adjustable speed circulating fan, four selection by winnowing return air that enter the corase grind system by ventilation duct in the effect leeward of adjustable speed circulating fan select the air inlet (14) of powder storehouse (12), wind after four selection by winnowing return air select interior four return air in powder storehouse (12) to select powder by air outlet (15) out, carrying the wind of fines and powder secretly, the secondary selection by winnowing return air that enters the fine grinding system by ventilation duct selects the air inlet (7) of powder storehouse (5), wind out enters by ventilation duct the lower whirlwind entrance (37) that selects powder impeller powder concentrator (19) by air outlet (8) after in secondary selection by winnowing return air selects powder storehouse (5), entering secondary returning selection by winnowing powder, wind centrifugal powder impeller (24) that selects that enters rotation after selecting powder in whirlwind selects powder storehouse (23) further selects powder, wind is by selecting powder impeller (24) to export (36) out by the upper whirlwind of wind chamber (35) outside, by ventilation duct, entered the blast pipe air inlet (49) of spiral centrifugal separator tube (41), wind out by ventilation duct is got back to the air intake vent recirculation of circulating fan by the discharge pipe air outlet (50) of discharge pipe (44) by powder after gentle separation in spiral centrifugal separator tube (41).The blast pipe of dust-precipitator is connected with the discharge pipe air outlet (50) of spiral centrifugal separator tube (41), and the wind of suction production system inside does not allow the production system ash of smoldering, and the wind after the dust-precipitator dedusting enters atmosphere.

Claims (12)

1. the whole grinding of abrasive crushing, the grinding material after crushing equipment crushing by selecting powder equipment to select qualified fine powder, underproof grinding material recirculation crushing grinding, wind after the grinding system dust-precipitator gathers dust enters atmosphere, and feature of the present invention is that abrasive is added in the grinding material in grinding system and is mixed through grinding system crushing grinding and selects powder to produce qualified fine powder.
2. the grinding system that is added with abrasive according to claim 1, it is characterized in that the grinding material sends into the current stabilization storehouse by the virgin material conveying equipment, current stabilization is equipped with abrasive in storehouse, the compound of grinding material and abrasive falls into the crushing equipment crushing grinding under it again, the compound of crushing after grinding falls into after circulating lifting machine is promoted by circulating lifting machine and falls into the crushing equipment joint group grinding of crushing again, the powder equipment that selects that compound after crushing equipment joint group crushing grinding falls under it carries out sorting, qualified fine powder is selected by collecting device and is gathered into finished product, underproof grinding material and abrasive fall into the current stabilization storehouse recirculation under it, the air outlet of circulating fan is connected with the air inlet that selects powder equipment by ventilation duct, the air inlet of circulating fan is connected with the discharge pipe that selects powder equipment by ventilation duct.
3. the grinding system that is added with abrasive according to claim 1, it is characterized in that the grinding material by the virgin material conveying equipment send into the corase grind current stabilization storehouse, the grinding material of corase grind in the current stabilization storehouse falls into after the crushing equipment crushing grinding it under to fall into to roughly grind after circulating lifting machine is raised to fall into to roughly grind and selects the powder equipment sorting, do not have the selected grinding material of walking to fall into the corase grind current stabilization storehouse recirculation under it, the selected fines of walking and powder are brought into fine grinding by wind by ventilation duct and are selected powder equipment to carry out sorting again, qualified powder out is gathered into finished product by collecting device by selection by winnowing, underproof fines and powder fall under it fine grinding current stabilization storehouse that abrasive is housed, abrasive in fine grinding current stabilization storehouse and fines also have powder to be mixed into after compound the crushing equipment joint group that falls under it again to crush after grinding to fall into after the fine grinding circulating lifting machine is raised and fall into fine grinding and select the powder equipment sorting, do not have the selected abrasive of walking and fines to also have powder to fall into the fine grinding current stabilization storehouse recirculation under it, qualified powder is selected by collecting device and is gathered into finished product, the air outlet of circulating fan selects the air inlet of powder equipment to be connected by ventilation duct with corase grind, corase grind selects the air outlet of powder equipment to select the air inlet of powder equipment to be connected by ventilation duct and fine grinding, fine grinding selects the air outlet of powder equipment to be connected with the air inlet of circulating fan by ventilation duct.
4. according to claim 1,2 or 3 described abrasives, is characterized in that abrasive is thin steel ball.
5. the crushing equipment that is added with the ad hoc meter of grinding material of abrasive for the crushing grinding has the serrated roller press, it is characterized in that the pressure roller roll surface of serrated roller press becomes profile of tooth.
6. the stitcher roll surface of serrated roller press according to claim 5, is characterized in that the stitcher roll surface has the flat tooth (3) of material feeding and roll-in.
7. according to claim 1, the 2 or 3 described powder equipments that select have return air to select powder storehouse (5), it is characterized in that the air-return duct (10) that return air selects powder storehouse (5) to participate in forming by deflector (9) allows the wind that flows by this paragraph material turn round again by another paragraph material stream.
8. deflector according to claim 7 (9), is characterized in that deflector (9) rear end and return air select powder storehouse (5) bulkhead to be connected.
9. according to claim 1, the 2 or 3 described powder equipments that select select powder impeller powder concentrator (19), it is characterized in that selecting in powder impeller powder concentrator (19) and select powder impeller (24), what wind De Xuanfen road (31) was arranged and select powder in selecting powder impeller (24) selects powder panel (28).
10. the powder impeller (24) that selects according to claim 9, is characterized in that selecting select powder panel (28) and outer cylinder body (27) intersection of selecting powder impeller (24) in powder impeller (24) to get rid of material mouthful (33).
11. according to claim 1, the 2 or 3 described powder equipments that select have spiral centrifugal separator tube (41), it is characterized in that there is the spiral centrifugal ventilating duct (45) that ventilates and select materials in the blast pipe (43) of spiral centrifugal separator tube and the space that discharge pipe (44) folds.
12. blast pipe according to claim 11 (43), is characterized in that on blast pipe (43) having taking off and expect mouthful (46).
CN2013103452082A 2013-08-09 2013-08-09 Abrasive material crushing final grinding Pending CN103394390A (en)

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