CN105855016A - Superfine needle-shaped wollastonite powder production process and device - Google Patents
Superfine needle-shaped wollastonite powder production process and device Download PDFInfo
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- CN105855016A CN105855016A CN201610201457.8A CN201610201457A CN105855016A CN 105855016 A CN105855016 A CN 105855016A CN 201610201457 A CN201610201457 A CN 201610201457A CN 105855016 A CN105855016 A CN 105855016A
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- powder
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- dental lamina
- wollastonite
- needle shape
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C1/00—Crushing or disintegrating by reciprocating members
- B02C1/02—Jaw crushers or pulverisers
- B02C1/04—Jaw crushers or pulverisers with single-acting jaws
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C1/00—Crushing or disintegrating by reciprocating members
- B02C1/02—Jaw crushers or pulverisers
- B02C1/10—Shape or construction of jaws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/28—Shape or construction of beater elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/28—Shape or construction of beater elements
- B02C2013/2808—Shape or construction of beater elements the beater elements are attached to disks mounted on a shaft
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention provides a superfine needle-shaped wollastonite powder production process and device. The superfine needle-shaped wollastonite powder production process comprises the following steps that wollastonite raw ore is crushed till the average particle size is smaller than 1 cm and is pulverized through a pulverizer, so that needle-shaped powder with the sedimentation value being 60-90 is obtained; the needle-shaped powder is vibrated and screened, and thus needle-shaped powder large in length-diameter ratio is obtained; and the needle-shaped powder large in length-diameter ratio enters an airflow mill to be subjected to airflow pulverization, so that needle-shaped wollastonite powder with the fineness being 600-3000 meshes and the length-diameter ratio being larger than 10:1 is obtained. Specifically, the superfine needle-shaped wollastonite powder production process further comprises the steps that the wollastonite raw ore is subjected to primary crushing till the average particle size is smaller than 5 cm and then sent into a dental plate jaw type crusher to be crushed till the average particle size is smaller than 0.5 cm. According to the superfine needle-shaped wollastonite powder production process and device, the problem that a superfine needle-shaped wollastonite powder production process and device are not mature enough in the prior art is solved.
Description
Technical field
The present invention relates to field mineral produce, particularly relate to the production technology of a kind of ultra-fine needle shape wollastonite powder
And device.
Background technology
Ultra-fine needle shape wollastonite powder is mainly used in the high-grade high-end filling such as anticorrosive paint, automobile engineering plastics neck
Territory, has the excellent properties of uniqueness.At present, ultra-fine needle shape wollastonite powder mainly uses two kinds of techniques to prepare,
One is that ultra-fine mechanical abrasion is standby, and two is prepared by airflow milling.Although both Processes and apparatus are used for other things
The time that puts goods on the market during material is longer, but when applying to the production of ultra-fine needle shape wollastonite powder, has a series of
It is difficult to the defect overcome.Such as:
1. wollastonite raw ore often contains the impurity such as quartz, garnet, diopside.The Mohs of wollastonite
Hardness is 4～4.5 grades, and the Mohs' hardness of the accompanying impurities such as quartz is more than 6 grades.These impurity is often
Embedded association, in wollastonite, is difficult to be separated by means such as color choosings.And, these impurity are hard
Hard difficult mill, not only has a strong impact on the service life of consumable accessory, is greatly increased production cost, and serious shadow
Ring quality and the product specification of wollastonite finished product, and range.
2. with ultra-fine mechanical abrasion for ultra-fine needle shape wollastonite powder time, due to ultra-fine wollastonite in powder typically 600
Mesh～3000 mesh, and when the wollastonite in powder of this fineness is acicular texture, if using ultra-fine machinery mill this
Pulverizer can make aciculiform rupture, thus i.e. makes powder body finished product reach its fineness standard, but needle-like ratio
(i.e. draw ratio) does not reaches far away market demands.
3., when preparing ultra-fine needle shape wollastonite powder by airflow milling, mainly use between powder body mutual due to airflow milling
The active force collided is pulverized, and now wollastonite in powder typically can divide along its intrinsic cleavage surface,
It is possible to preferably keep its acicular nature.But airflow milling energy consumption is higher, this technique is used to make
The finished product come, owing to price is the highest, market is often difficult to accept.
In sum, the most commercially, there is no a set of technology maturation, lower-cost technique and equipment
May be used for producing ultra-fine needle shape wollastonite powder, therefore, invent and develop a set of for producing ultra-fine pin
The technique of shape wollastonite in powder and complete set of equipments, be the inevitable requirement of market development.
Summary of the invention
The technical problem to be solved in the present invention, be to provide a kind of ultra-fine needle shape wollastonite powder production technology and
Device, solves the problem that in prior art, technical equipment is not mature enough.
The present invention is achieved in that
A kind of ultra-fine needle shape wollastonite powder production technology, comprises the steps,
By wollastonite crushing raw ore to mean diameter less than 1cm, pulverize with pulverizer, settled
The acicular powder of value 60-90, carries out vibrosieve by acicular powder, it is thus achieved that the acicular powder of high length-diameter ratio, enters back into
Airflow milling carries out comminution by gas stream, obtains fineness 600-3000 mesh, the draw ratio acicular wollastonite more than 10:1
Powder.
Specifically, also include step, wollastonite raw ore be crushed to mean diameter through one-level and be less than 5cm,
It is re-fed into dental lamina jaw crusher and is crushed to mean diameter less than 0.5cm.
A kind of ultra-fine needle shape wollastonite powder process units, including conveying mouth, disintegrating machine, impact grinder,
Acicular powder collector unit；
Described conveying mouth is connected with disintegrating machine feed, and described disintegrating machine is connected with impact grinder, impacts powder
Broken machine is connected with acicular powder collector unit；
Wherein, described impact grinder includes grating disk, pay-off, grader；Described grating disk is pacified
Being loaded in impact grinder body, described pay-off is positioned at the top of grating disk, and grader is positioned at pulverizing
The top of machine body, is connected with slag-drip opening also by slagging channel bottom grating disk, described grating disk around in
The heart rotates, and on grating disk, the position near circumference is provided with tup, and grating disk sets by paracentral position
It is equipped with mud hole.Described tup and mud hole quantity are two or more, and described tup and mud hole are to powder
The distance of broken disk center is the most equal, and described tup is convex surface towards the one side of grating disk rotation direction.
Further, described tup and the mud hole different orientations on grating disk is crisscross arranged.
Specifically, deironing apparatus, described deironing apparatus bag are also included between described disintegrating machine and impact grinder
Including filtering surface, material channel, described filtering surface is positioned at below material channel, and described filtering surface includes screen cloth,
Described sieve screen apertures is square and bar shaped.
Further, described filtering surface includes that bar magnet jack, described bar magnet jack are arranged in pairs in sieve
The both sides of side off the net, described bar magnet jack is used for the two ends offer after inserting bar magnet to bar magnet
Support.
Preferably, described disintegrating machine includes one-level jaw crusher and dental lamina jaw crusher, described dental lamina
Jaw crusher includes fixing dental lamina and movable dental lamina, and described fixing dental lamina is vertically placed, movable dental lamina
Bottom is parallel with fixing dental lamina, and the upper section slants outward of movable dental lamina makes the top of movable dental lamina with fixing
Gap between dental lamina is more than the gap between bottom and fixing dental lamina, and the top of described movable dental lamina is provided with perpendicular
Tooth, bottom is provided with contrate.
Preferably, described impact comminution barrel wall includes opening, described opening part are provided with outside cylinder extension
Blast pipe, described blast pipe is two or more, and the bearing of trend of described blast pipe and opening are to cylinder circle
The line of the heart is predetermined angle, and the end of described blast pipe also includes air door and regulating device of air door, described
Regulating device of air door is for changing the size of air door cross-sectional area.
Further, described predetermined angle is 90 degree or 270 degree.
Further, vibrosieve unit, airflow milling, ultra-fine acicular powder collector unit are also included；
Described acicular powder collector unit is also connected with vibrosieve unit, and vibrosieve unit is with airflow milling even
Connecing, airflow milling is also connected with ultra-fine acicular powder collector unit.
Present invention have the advantage that by two-stage crushing system, make wollastonite enter the grain before pulverizer
Degree size is about 0.5cm, and uses hammer mill to wollastonite when two-stage crushing is greatly reduced
The destruction of aciculiform.Use specially designed abnormity tup to carry out pulverizing structure in crushing process, reduce hammer
The head hitting dynamics to wollastonite, and strengthen distinguished and admirable rotation dynamics by design blast pipe, thus protect
The acicular texture of wollastonite, improves draw ratio and the sedimentation value of wollastonite powder body.At impact mechanical pulverizing
Broken complete after, powder body enter vibrosieve carry out classification, be classified into the product of multiple category, by high sedimentation value
Category put into airflow milling and pulverize further, the product of other categories is sold to respectively other segmentation cities
?.The finished product making the present invention can reach fine size, and draw ratio is high, and acicular texture is intact
Effect.
Accompanying drawing explanation
Fig. 1 is the ultra-fine needle shape wollastonite powder production technology schematic diagram described in the specific embodiment of the invention；
Fig. 2 is the ultra-fine needle shape wollastonite powder process units figure described in the specific embodiment of the invention；
Fig. 3 is the movable dental lamina schematic diagram described in the specific embodiment of the invention；
Fig. 4 is the dental lamina jaw crusher schematic diagram described in the specific embodiment of the invention；
Fig. 5 is the deironing apparatus schematic diagram described in the specific embodiment of the invention；
Fig. 6 is the filtering surface schematic diagram described in the specific embodiment of the invention；
Fig. 7 is the grating disk schematic diagram described in the specific embodiment of the invention；
Fig. 8 is the impact grinder structure chart described in the specific embodiment of the invention；
Fig. 9 is the air-intake device schematic diagram described in the specific embodiment of the invention；
Figure 10 is the blast pipe schematic diagram described in the specific embodiment of the invention.
Description of reference numerals:
1, conveying mouth；
2, one-level jaw crusher；
3, dental lamina jaw crusher；
30, fixing dental lamina；
31, movable dental lamina；
32, vertical line；
33, band；
4, deironing apparatus；
40, filtering surface；
41 screen clothes；
42, material channel；
43, bar magnet jack
44, bar magnet；
5, impact grinder；
50, grating disk；
51, pay-off；
52, grader；
53, tup；
54, mud hole；
55, blast pipe；
56, air door；
57, regulating device of air door；
6, acicular powder collector unit；
7, vibrosieve unit；
8, impact grinder air-introduced machine；
9, airflow milling；
10, ultra-fine acicular powder collector unit；
11, airflow milling air-introduced machine.
Detailed description of the invention
By describing the technology contents of the present invention, structural feature in detail, being realized purpose and effect, below tie
Close embodiment and coordinate accompanying drawing to be explained in detail.
Refer to a kind of ultra-fine needle shape wollastonite powder production technology of Fig. 1 present invention, comprise the steps,
By wollastonite crushing raw ore to mean diameter less than 1cm, pulverize with pulverizer, settled
The acicular powder of value 60-90, carries out vibrosieve by acicular powder, it is thus achieved that the acicular powder of high length-diameter ratio, enters back into
Airflow milling carries out comminution by gas stream, obtains fineness 600-3000 mesh, the draw ratio acicular wollastonite more than 10:1
Powder.
Specifically, also include step, wollastonite raw ore be crushed to mean diameter through one-level and be less than 5cm,
It is re-fed into dental lamina jaw crusher and is crushed to mean diameter less than 0.5cm.By said method step, it is possible to
Acquisition particle diameter is little, and fineness is high, the acicular wollastonite powder that crystalline reservation is intact.
Next please see Figure 2, for a kind of ultra-fine needle shape wollastonite powder process units, including conveying mouth 1, break
Broken machine, impact grinder 5, acicular powder collector unit 6；
Described conveying mouth 1 is connected with disintegrating machine feed, and described disintegrating machine is connected with impact grinder 5, punching
Hit pulverizer to be connected with acicular powder collector unit 6；
Wherein, as shown in Figure 7 and Figure 8, described impact grinder include grating disk 50, pay-off 51,
Grader 52；Described grating disk is installed in impact grinder body, and described pay-off is positioned at grating disk
Top, grader is positioned at the top of crusher body, also by slagging channel and deslagging bottom grating disk
Mouth connects, and described grating disk position of close circumference on central rotation, grating disk is provided with tup 53,
On grating disk, paracentral position is provided with mud hole 54.Described tup and mud hole quantity are two
Above, described tup and mud hole are the most equal to the distance at grating disk center, and described tup is towards pulverizing
The one side of dish rotation direction is convex surface.Grating disk operationally high speed rotating, for entering on grating disk
Material, heavier impurity and lighter product can separate due to the effect of centrifugal force, and impurity stops
At grating disk near center of circle part, being discharged by slag-drip opening, lighter material is thrown to periphery and sends out with tup
Raw collision, pulverizes, above-mentioned design reached pulverize the most again can the effect of stock remove impurity deslagging, solve
Determine the problem of the how easy wear equipment of comminuting matter impurity, simultaneously by tup 53 towards grating disk rotation side
To one side be set to convex surface, it is possible to make the impact process of collision crashing become the softest, pulverize
While can protect the crystal structure of acicular wollastonite further.Contribute to ensureing the quality of product.
In some further embodiments, described tup and the mud hole different orientations on grating disk
It is crisscross arranged.Can be as a example by 0 degree of azimuth by front-right refering to Fig. 7, clockwise or inverse at azimuth
During hour hands turn to 360 degree, on grating disk, the arrangement of workpiece is always tup-mud hole-tup friendship
Wrong setting, this kind of design is advantageous in that the separation being more beneficial for impurity and wollastonite in powder, and design sense is strong also
And it is elegant in appearance.Owing to wollastonite powder body needs to move along tup direction and pulverized, so, this
Kind design is advantageous in that and impurity can either be made to drop towards slag-drip opening, slag-drip opening can be made again to be not take up main
Want comminuting space, do not affect grindability.
In some specific embodiments, as in figure 2 it is shown, also wrap between described disintegrating machine and impact grinder
Including deironing apparatus 4, specifically please see Figure 5 and Fig. 6, described deironing apparatus includes filtering surface 40, material channel
42, described filtering surface is positioned at below material channel, and described filtering surface includes that screen cloth 41, described sieve screen apertures are
Square and bar shaped.When processing acicular wollastonite raw material, this material through general screen cloth, as
Square sieve screen apertures can could not be passed through sieve screen apertures because the relation of angle, and in fact be to meet fineness to want
The qualified material asked, if simply increasing mesh size, is then unable to reach the effect of impurity screening, therefore
By designing the sieve screen apertures of bar shaped, laterally or longitudinally can interlock with certain rule setting in screen cloth
Strip-type screen mesh, then the square mesh hole of routine of arranging in pairs or groups, it is possible to reach despumation, screen given shape
The effect of material.
In a further embodiment, described filtering surface includes bar magnet jack 43, described bar magnet jack
43 are arranged in pairs in the both sides below screen cloth, and described bar magnet jack is used for after inserting bar magnet 44 magnetic
The two ends of iron staff provide and support.Be there is the bar magnet of stronger magnetic force by use, it is possible to make in material mixed
The impurity such as miscellaneous iron filings are adsorbed, and described iron filings are because raw material in disintegrating machine and produce with machine friction,
Belong to inevitable natural wastage, increase the iron filings etc. being designed in removal material of one layer of bar magnet
Impurity, the problem preferably solving contaminant filter.
In some other preferred embodiment, described disintegrating machine includes one-level jaw crusher 2 and dental lamina
Jaw crusher 3, described dental lamina jaw crusher can refer to Fig. 3 and Fig. 4, and it includes fixing dental lamina 30
With movable dental lamina 31, described fixing dental lamina vertically places, and the bottom of movable dental lamina is parallel with fixing dental lamina,
The upper section slants outward of movable dental lamina makes the gap between the top of movable dental lamina and fixing dental lamina more than bottom
And the gap between fixing dental lamina, the top of described movable dental lamina is provided with perpendicular tooth 32, and bottom is provided with contrate
33.The bottom of movable dental lamina is arranged to, with to fix dental lamina parallel, be different from changing of general jaw crusher
Enter, it is possible to increase the compression area of wollastonite, erect tooth in upper design simultaneously, design contrate in bottom,
It is also possible that acicular wollastonite be broken thinner, ultimate size can reach 0.5cm.
In some preferred embodiments shown in Fig. 9 and Figure 10, described impact comminution barrel wall includes
Opening, described opening part is provided with outside cylinder the blast pipe 55 extended, and described blast pipe 55 is two or more,
The bearing of trend of described blast pipe and opening are predetermined angle to the line in the cylinder center of circle, described blast pipe
End also includes air door 56 and regulating device of air door 57, and it is transversal that described regulating device of air door is used for changing air door
The size of area.First-class at the circumference of cylinder by arranging blast pipe blast pipe in impact comminution barrel wall
Spacing arranges, and is more beneficial for blast everywhere in equilibrium inner chamber, it is also possible to changed by regulating device of air door
Air door size, forms air-flow more regularly.Solve pulverizer internal gas flow intensity in prior art not enough,
The problem being difficult to form effective cyclone.Wherein regulating device of air door can be the cover plate of manually regulation, also may be used
To be the flow valve etc. of electrical adjustment, by the size control intake of damper cross-sectional area, more
Form cyclone in being conducive to pulverizer, make the state that wollastonite is kept upright in crushing chamber or class is upright,
Wollastonite collides with each other under this kind of state under the drive of high wind, and beneficially wollastonite is towards the cleavage of needle-like
Face is pulverized, thus is conducive to keeping the feature of needle-like.
In further embodiment, described predetermined angle is 90 degree or 270 degree.I.e. blast pipe and cylinder
Tangential direction is parallel, to tilting clockwise or counterclockwise, in embodiment as shown in Figure 9, and three
Blast pipe tilts the most clockwise, and blast pipe is parallel with tangential direction to be advantageous in that, air-flow along
When blast pipe enters inner chamber by opening, direction is parallel with pulverizer barrel, will not be hindered, causes
Dynamic loss of energy, the cyclone therefore formed at inner chamber also has the highest intensity.Preferably solve existing
The problem that in technology, pulverizer internal gas flow intensity is not enough.
In some other embodiment, also include that vibrosieve unit 7, airflow milling 9, ultra-fine acicular powder are received
Collection unit 10；
Described acicular powder collector unit is also connected with vibrosieve unit, and vibrosieve unit is with airflow milling even
Connecing, airflow milling is also connected with ultra-fine acicular powder collector unit.Impact mechanical pulverizing is broken complete after, powder
Body enters vibrosieve and carries out classification, is classified into the product of multiple category, the category of high sedimentation value is put into
Airflow milling is pulverized further, the product of other categories is sold to respectively and segments market.Above-mentioned design
Be conducive to improving the practicality of the present invention, the product of diversification can be made the best use of everything.
The foregoing is only embodiments of the invention, not thereby limit the scope of patent protection of the present invention,
Every equivalent structure utilizing description of the invention and accompanying drawing content to be made or equivalence flow process conversion, or directly
Or indirectly it is used in other relevant technical fields, the most in like manner it is included in the scope of patent protection of the present invention.
Claims (10)
1. a ultra-fine needle shape wollastonite powder production technology, it is characterised in that comprise the steps,
By wollastonite crushing raw ore to mean diameter less than 1cm, pulverize with pulverizer, settled
The acicular powder of value 60-90, carries out vibrosieve by acicular powder, it is thus achieved that the acicular powder of high length-diameter ratio, enters back into
Airflow milling carries out comminution by gas stream, obtains fineness 600-3000 mesh, the draw ratio acicular wollastonite more than 10:1
Powder.
Ultra-fine needle shape wollastonite powder production technology the most according to claim 1, it is characterised in that also
Including step, wollastonite raw ore is crushed to mean diameter through one-level and is less than 5cm, be re-fed into dental lamina jaw
Formula crusher in crushing is less than 0.5cm to mean diameter.
3. a ultra-fine needle shape wollastonite powder process units, it is characterised in that include conveying mouth, disintegrating machine,
Impact grinder, acicular powder collector unit；
Described conveying mouth is connected with disintegrating machine feed, and described disintegrating machine is connected with impact grinder, impacts powder
Broken machine is connected with acicular powder collector unit；
Wherein, described impact grinder includes grating disk, pay-off, grader；Described grating disk is pacified
Being loaded in impact grinder body, described pay-off is positioned at the top of grating disk, and grader is positioned at pulverizing
The top of machine body, is connected with slag-drip opening also by slagging channel bottom grating disk, described grating disk around in
The heart rotates, and on grating disk, the position near circumference is provided with tup, and grating disk sets by paracentral position
It is equipped with mud hole.Described tup and mud hole quantity are two or more, and described tup and mud hole are to powder
The distance of broken disk center is the most equal, and described tup is convex surface towards the one side of grating disk rotation direction.
Ultra-fine needle shape wollastonite powder process units the most according to claim 3, it is characterised in that institute
State tup and the mud hole different orientations on grating disk to be crisscross arranged.
Ultra-fine needle shape wollastonite powder process units the most according to claim 3, it is characterised in that institute
State and between disintegrating machine and impact grinder, also include that deironing apparatus, described deironing apparatus include filtering surface, material
Passage, described filtering surface is positioned at below material channel, and described filtering surface includes that screen cloth, described sieve screen apertures are
Square and bar shaped.
Ultra-fine needle shape wollastonite powder process units the most according to claim 5, it is characterised in that institute
State filtering surface and include that bar magnet jack, described bar magnet jack are arranged in pairs in the both sides below screen cloth, institute
State bar magnet jack for providing support to the two ends of bar magnet after inserting bar magnet.
Ultra-fine needle shape wollastonite powder process units the most according to claim 3, it is characterised in that institute
State disintegrating machine and include that one-level jaw crusher and dental lamina jaw crusher, described dental lamina jaw crusher include
Fixing dental lamina is vertically placed with movable dental lamina, described fixing dental lamina, the bottom of movable dental lamina and fixing dental lamina
Parallel, the upper section slants outward of movable dental lamina makes the gap between the top of movable dental lamina and fixing dental lamina big
Gap between bottom and fixing dental lamina, the top of described movable dental lamina is provided with perpendicular tooth, and bottom is provided with
Contrate.
Ultra-fine needle shape wollastonite powder process units the most according to claim 3, it is characterised in that institute
State and in impact comminution barrel wall, include that opening, described opening part are provided with outside cylinder the blast pipe extended, described
Blast pipe is two or more, and the line of the bearing of trend of described blast pipe and opening to the cylinder center of circle is in presetting
Angle, the end of described blast pipe also includes air door and regulating device of air door, and described regulating device of air door is used
In the size changing air door cross-sectional area.
Ultra-fine needle shape wollastonite powder process units the most according to claim 8, it is characterised in that institute
Stating predetermined angle is 90 degree or 270 degree.
Ultra-fine needle shape wollastonite powder process units the most according to claim 3, it is characterised in that
Also include vibrosieve unit, airflow milling, ultra-fine acicular powder collector unit；
Described acicular powder collector unit is also connected with vibrosieve unit, and vibrosieve unit is with airflow milling even
Connecing, airflow milling is also connected with ultra-fine acicular powder collector unit.
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| CN110743697A (en) * | 2019-10-29 | 2020-02-04 | 广东五岭硅灰石有限公司 | Selection method for recovering needle-shaped wollastonite from mixed ore |
| CN111005222A (en) * | 2019-12-12 | 2020-04-14 | 湖北冯家山硅纤有限公司 | Surface treatment method of superfine and overlong silicon fiber |
| CN111232987A (en) * | 2020-04-10 | 2020-06-05 | 昆明理工大学 | Method for efficiently recovering elemental silicon in industrial silicon slag |
| CN111282699A (en) * | 2020-03-05 | 2020-06-16 | 大连环球矿产股份有限公司 | Device capable of controlling fine structure of mineral fiber crystal form and control method using device |
| CN112138826A (en) * | 2019-06-26 | 2020-12-29 | 西南科技大学 | Method for preparing high-length-diameter-ratio fibrous superfine powder |
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| CN110743697A (en) * | 2019-10-29 | 2020-02-04 | 广东五岭硅灰石有限公司 | Selection method for recovering needle-shaped wollastonite from mixed ore |
| CN111005222A (en) * | 2019-12-12 | 2020-04-14 | 湖北冯家山硅纤有限公司 | Surface treatment method of superfine and overlong silicon fiber |
| CN111005222B (en) * | 2019-12-12 | 2022-09-13 | 湖北冯家山硅纤有限公司 | Surface treatment method of superfine and overlong silicon fiber |
| CN111282699A (en) * | 2020-03-05 | 2020-06-16 | 大连环球矿产股份有限公司 | Device capable of controlling fine structure of mineral fiber crystal form and control method using device |
| CN111282699B (en) * | 2020-03-05 | 2022-04-12 | 大连环球矿产股份有限公司 | Device capable of controlling fine structure of mineral fiber crystal form and control method using device |
| CN111232987A (en) * | 2020-04-10 | 2020-06-05 | 昆明理工大学 | Method for efficiently recovering elemental silicon in industrial silicon slag |
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