CN101845240B - Manufacturing method of granular iron oxide black pigment and double-roller grinder for realizing same - Google Patents
Manufacturing method of granular iron oxide black pigment and double-roller grinder for realizing same Download PDFInfo
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- CN101845240B CN101845240B CN201010158975A CN201010158975A CN101845240B CN 101845240 B CN101845240 B CN 101845240B CN 201010158975 A CN201010158975 A CN 201010158975A CN 201010158975 A CN201010158975 A CN 201010158975A CN 101845240 B CN101845240 B CN 101845240B
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- iron oxide
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- oxide black
- double
- chock
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Abstract
The invention mainly discloses a manufacturing method of granular iron oxide black pigment, which comprises the steps of: sending iron black block material with the water content of 1-2% into a double-roller grinder, and grinding the dry iron black block material into granules with the needed size in the double-roller grinder; then, classifying by a rotary vibration sieve; and collecting granular iron oxide black of 20-80 meshes. The technique has the advantages of solving the problem of the occupational disease caused by dust pollution of iron oxide pigment industry, improving the working environment of workers and protecting the health of the workers. The invention also discloses the double-roller grinder for realizing the method, the upper part of the grinder is provided with a pair of rollers which are provided with a fit clearance adjusting mechanism; three layers of vibrating screens which are driven by an eccentric motor and have the number of sieve meshes that are increased gradually from top to bottom are positioned just under the rollers; and the edges of the vibrating screens are provided with discharge holes. The double-roller grinder leads the material to be bitten into a grinding area by utilizing the frictional force of roller surfaces, thus crushing the material by extruding or splitting.
Description
Technical field:
The technology of the granular iron oxide black pigment of the characteristics that the present invention relates to a kind of making and have good flow characteristics, be prone to dispersion, no dust, particle mechanical hardness are moderate.In order to realize this technology, the invention still further relates to a kind of pair roller kibbler of realizing this method.
Background technology:
Iron oxide black is called for short iron black, and staple is a Z 250, and molecular formula is Fe
3O
4Or Fe
2O
3FeO, it has saturated blue black light black, and opacifying power and tinting strength are all very high, and be very stable to light and atmospheric effect; It is painted to be widely used in building material industry cement, paint, this external printing ink; Printing, coloring plastic, the application of aspects such as polishing and metal defect detection.Through market survey, along with improving constantly of domestic and international pigment applications field automatization level, and various countries are to the attention of worker health, environment protection, and the demand of granular iron oxide black pigment is also in continuous increase.
Though particulate iron oxide pigment method of manufacture was had report both at home and abroad: like U.S. ROCKWOOD patent report is to adopt the mist projection granulating method; Germany BAYER adopts the mechanical presses prilling process; Domestic Zhejiang Hangzhou Xiao Xiang pigment chemical industry ltd discloses a kind of particulate iron oxide red and method of manufacture thereof, the patent No.: 03103924; Shanghai Yipin International Pigments Co., Ltd. discloses a kind of prilling process of powder pigment, the patent No.: 03115597.The two on croci pigment, sprays the certain quantity of fluid tackiness agent all through tablets press; Make powder pigment and tackiness agent under the high-speed stirring effect in bed around radially doing the high speed cyclotron motion; Bonded dose of powder surface of pigments is moistening, and particle runs foul of each other bonding, and particle diameter increases to processing requirement gradually; Adopt conventional method to carry out drying and screening then, obtain granular pigments.
Above granulation all has following shortcoming, and the one, pigment has repetition exsiccant process, and product energy consumption is increased greatly; The 2nd, add auxiliary agents such as tackiness agent at granulation process, make the granular pigments tinctorial strength descend about 20%, but also influence shade of color and other use properties than previous powder-like.
Summary of the invention:
The method of manufacture that main task of the present invention is that a kind of Working environment that can reduce iron oxide pigment industry dust pollution, improve the worker is provided, protects the granular iron oxide black pigment of worker health.
The preparation method of a kind of granular iron oxide black of the present invention is following: be about to conveyor dryer oven dry iron black block material up to standard; Pair roller kibbler through a special band groove; The block siccative in iron oxide black is broken into needed granularity; Then through revolving the screen sizing that shakes; Will greater than 20 purpose particles return the pair roller kibbler once more fragmentation recycle, will pulverize the back through eddy mill less than 80 purpose fine particles and sell as Powdered iron oxide pigment, collection 20-80 purpose granular iron oxide black is as finished product.
The present invention also provides a kind of specific equipment for preparing granular iron oxide black; Comprise frame and be located at the housing on the frame; It is characterized in that: housing top is provided with a pair of roll that cooperatively interacts; The two ends of roll are bearing on the chock through bearing, and chock is installed on the frame, and this breaker roll is connected with servomotor with belt transmission through speed reduction unit respectively; Be provided with a three-deck vibrating screen by the eccentric motor driving under the roll, the screen number of said three-deck vibrating screen increases from top to bottom gradually, and is provided with discharge port at the edge of each layer vibratory screening apparatus.
Further; Also be provided with the tolerance clearance regulating mechanism on said this breaker roll: wherein have horizontal guide groove on the frame of a roll two end axles bearing position; Said chock drops in the horizontal guide groove and can move horizontally along it; On the outer side frame of said chock the setting nut that props up chock is installed, the inboard is provided with return spring.
Advantage of the present invention is:
1, because granular iron oxide black of the present invention is directly to make from block siccative, thereby saves after drying and crushing process, thereby can practice thrift mass energy consumption; In addition owing to do not add any auxiliary agent in the pigment, can definitely guarantee pigment color pure, tinctorial strength is constant, environmental protection and other use properties.
2,, on original production line, do slightly to drop into and transform and to accomplish scale production, and production cost is low because this preparation technology flow process is simple; Prepared granular iron oxide black application performance is the same with powder pigment; And have good flow characteristics, be prone to dispersion, no dust, the moderate characteristics of particle mechanical hardness; Thereby in use; Do not glue wall, be convenient to material pipe conveying, automatic accurate measurement etc.,, be convenient to industrializing implementation so this pigment is with a wide range of applications.
3, unrestricted flow: require prepared black iron oxide pigment particle to have good flow characteristics, in use, be convenient to that material pipe is carried, automatic gauge is accurate etc., no powder wall stagnation behavior in pipeline and container.
4, adopt specific equipment to prepare, iron oxide black has the following advantages: pellet hardness is suitable: guarantee in transportation, to be rocked, slightly extruding and when in pipeline, adopting high-pressure delivery, also can not produce the grain breakage phenomenon.
5, be prone to disperse: require granules of pigments in aqueous medium, use a small amount of mechanical external force, the short period of time can be uniformly dispersed; Promptly in use easy and water-bearing concreae stirs into the concrete with color.
6, no dust: the particle of pigment is almost spotless, helps health of operators and environmental health.
7, particle appearance dimensional requirement: particle diameter is at the 180-840 micron.
Description of drawings
Fig. 1 is a pair roller mill structure synoptic diagram of the present invention.
Fig. 2 is along the sectional view of A-A line among Fig. 1.
Fig. 3 is along the sectional view of B-B line among Fig. 1.
Specific embodiment:
Through embodiment the present invention is described further below:
In order to realize technology of the present invention, the present invention relates to a kind of pair roller kibbler, like Fig. 1,2, shown in 3, comprise frame 1, housing 2, roll 3, chock 4, eccentric motor 5, vibratory screening apparatus 6, discharge port 7, setting nut 8, return spring 9.
Above-mentioned frame 1 is provided with housing 2; The top of housing 2 is provided with a pair of roll 3a, the 3b that cooperatively interacts and pulverize; The two ends of this breaker roll 3a, 3b respectively through bearing be bearing in chock 4a, 4b is last; Chock 4 is installed on the frame 1, and roll 3a, 3b are connected with servomotor with belt transmission through speed reduction unit respectively.After two servomotors start, rotate in opposite directions and pulverize through belt transmission and speed reduction unit drive roll 3a, 3b.
Under the bottom of housing 2, roll 3, be provided with the three-deck vibrating screen 6 that driven by eccentric motor 5, these vibratory screening apparatus 6 upper strata screen numbers are 20 orders, middle level sieve aperture 80 orders, and lower floor's order number is littler or do not establish sieve aperture, each layer vibratory screening apparatus edge is provided with discharge port 7.After particle after roll 3a, 3b pulverize gets into vibratory screening apparatus 6; Under the driving of eccentric motor 5; The screening of particle size is carried out in the vibration that vibratory screening apparatus 6 does not stop, and stays the upper strata less than 20 purpose macrobeads; Satisfactory 20-80 order medium grain is stayed the middle level, and too small particle then falls into the orlop vibratory screening apparatus.Can collect to be reentered between the roll 3 less than 20 purpose small-particles and repeatedly pulverize, be ground into satisfactory particle until it.
Particulate is of moderate size when pulverizing for assurance; Faster and better is ground into satisfactory particle size with block black iron oxide pigment; Also be provided with the tolerance clearance regulating mechanism on this breaker roll 3: have horizontal guide groove on the frame 1 of roll 3a two end axles bearing 4a position; Chock 4a drops in the horizontal guide groove and can move horizontally along it; On the side frame 1 of chock 4a away from roll 3b setting nut 8 is installed, this setting nut 8 props up chock 4, is embedded with return spring 9 near the inboard of roll 3b.
When needing the tolerance clearance of adjustment roll 3a, 3b, the setting nut 8 of roll 3a diaxon bearing of screwing, make its prop up chock 4 to roll 3b near; Thereby realize reducing of gap; When needing to increase the gap, unclamp setting nut 8, roll 3a outwards moves under the effect of return spring 9 and gets final product; Adjust thereby pulverize back particulate size situation, find best tolerance clearance according to pigment.
This mechanical principle of work is: the frictional force of utilizing roll surface makes it to bear extruding or splitting and broken machinery with the material fracture area of nipping.When being used for coarse crushing and maybe reduction ratio will being increased, make tooth or groove on the roll surface of being everlasting to increase slabbing action.Wedge shape or pad setting device are housed between two running rollers, and the adjustment bolt is equipped with on the top of Wedge device, when the adjustment bolt is pulled upwardly voussoir; Voussoir leaves fixed pulley with movable running roller top; Promptly two running roller gaps become big, and it is big that discharging-material size becomes, when voussoir is downward; Movable running roller two-wheeled gap smaller under the effect of holddown spring, discharging-material size diminishes.The pad device is to adjust the material granularity size through the quantity of increase and decrease pad or thickness, and two running roller gaps become big when increasing pad, two running roller gap smaller when reducing pad, and discharging-material size diminishes.
The invention has the advantages that: the one, solved under the occupational illness problem that iron oxide pigment industry dust pollution causes, the Working environment that improves the worker, the protection duty health and had very major and immediate significance is arranged; The 2nd, can improve building trade mechanize, automatization level, raising work is renderd a service, is improved operation site surrounding etc. and is significant.
Embodiment 1:
With 1000 kilograms of inputs of the iron black 330 block siccatives of our company preceding road production storehouse that feeds intake, with 15 rev/mins of rotating speeds, power of motor 3KW passes through conveyor screw then; Material is added 30 rev/mins of rotating speeds, and the pair roller kibbler of power of motor 7.5KW is broken into needed granularity with it; Revolve the sieve that shakes through two-stage then; Sieve through 20 orders earlier, sieve through 80 orders and carry out classification, the particle between 20 orders-80 order that comes out in the stage casing is finished product.Will be greater than 20 orders, promptly 840 microns particle return the pair roller kibbler once more fragmentation recycle, will less than 80 orders promptly 180 microns fine particle pulverize the back as Powdered black iron oxide pigment sale through eddy mill.Granular iron oxide black KS330G of the present invention and Powdered like product are more as shown in the table:
| The sample title | ΔE | ΔL | Δa | Δb | Tinting strength (%) | Fe304 content (%) | Physical strength (%) |
| Iron black KS330G particle (is standard specimen with Powdered KS330) | 0.25 | 0.24 | 0.03 | 0.08 | 99.63％ | 95.3％ | 85.7％ |
Can find out from last table: granular iron oxide black KS330G of our company and Powdered like product relatively have tinctorial strength, color form and aspect and powder-like basically identical, have product purity height and particle machinery advantages of high strength simultaneously.
Embodiment 2:
With 1000 kilograms of inputs of the iron black 330 block siccatives of preceding road production storehouse that feeds intake, pre-set 30 rev/mins of rotating speeds, the pair roller kibbler of power of motor 7.5KW utilizes and regulates the conveyor screw rotating speed, pulverizes broken feeding quantity with control.Its revolution speed of screw influences result such as following table to iron black color, physical strength and output:
Can find out from last table: its revolution speed of screw of the mechanical pelleting of our company is little to iron black color influence, but tinctorial strength is had slight influence, promptly increases along with the raising of revolution speed of screw; The particulate physical strength promptly descends along with the raising of revolution speed of screw; Output promptly progressively improves along with the raising of revolution speed of screw.Consider iron black color, physical strength and take into account factor such as volume cost, select revolution speed of screw between 14-16 rev/min for fitting.
Claims (3)
1. the method for manufacture of a granular iron oxide black pigment; It is characterized in that: conveyor dryer oven dry back water cut is controlled at the iron black block material between the 1-2%; Revolution speed of screw feeding to pair roller kibbler with 14-16 rev/min; In the pair roller kibbler, the block siccative in iron oxide black being broken into needs particle size, then through revolving the screen sizing that shakes, collects the granular iron oxide black between 20 orders-80 order.
2. pair roller kibbler of realizing the described granular iron oxide black pigment method of manufacture of claim 1; Comprise frame and be located at the housing on the frame; It is characterized in that: housing top is provided with a pair of roll that cooperatively interacts; The two ends of roll are bearing on the chock through bearing, and chock is installed on the frame, and this breaker roll is connected with servomotor with belt transmission through speed reduction unit respectively; Be provided with a three-deck vibrating screen by the eccentric motor driving under the roll, the screen number of said three-deck vibrating screen increases from top to bottom gradually, and is provided with discharge port at the edge of each layer vibratory screening apparatus.
3. pair roller kibbler according to claim 2; It is characterized in that: also be provided with the tolerance clearance regulating mechanism on said this breaker roll: wherein have horizontal guide groove on the frame of a roll two end axles bearing position; Said chock drops in the horizontal guide groove and can move horizontally along it; On the outer side frame of said chock the setting nut that props up chock is installed, the inboard is provided with return spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201010158975A CN101845240B (en) | 2010-04-29 | 2010-04-29 | Manufacturing method of granular iron oxide black pigment and double-roller grinder for realizing same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010158975A CN101845240B (en) | 2010-04-29 | 2010-04-29 | Manufacturing method of granular iron oxide black pigment and double-roller grinder for realizing same |
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| CN101845240A CN101845240A (en) | 2010-09-29 |
| CN101845240B true CN101845240B (en) | 2012-10-03 |
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