CN105797840A - Secondary inlet air type ultrafine grinding device for grinding limestone - Google Patents
Secondary inlet air type ultrafine grinding device for grinding limestone Download PDFInfo
- Publication number
- CN105797840A CN105797840A CN201610186787.4A CN201610186787A CN105797840A CN 105797840 A CN105797840 A CN 105797840A CN 201610186787 A CN201610186787 A CN 201610186787A CN 105797840 A CN105797840 A CN 105797840A
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- Prior art keywords
- housing
- rotor
- mill
- transmission device
- fine powder
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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
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/20—Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating
- B02C23/22—Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating with recirculation of material to crushing or disintegrating zone
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
- Developing Agents For Electrophotography (AREA)
Abstract
The invention discloses a secondary inlet air type ultrafine grinding device for grinding limestone. In the grinding process, secondary inlet air is guided for further elutriation when coarse particles fall in the grinding process, and therefore micro-particles mixed into the coarse particles rise along with the secondary inlet air, classification is carried out again, and therefore the classification efficiency can be improved. Coarse material subjected to elutriation falls into a grinder along a cylinder wall for being ground again.
Description
Technical field
The present invention relates to ultrafine grinding device, in particular it relates to a kind of secondary air ultrafine grinding device for crushed limestone.
Background technology
At present, superfine grinding is accompanied by the new material industry that modern high technology grows up, and the milling product of superfine grinding has fine size, good evenness, added value of product advantages of higher, product is widely used in the related industrial fields such as building materials, papermaking, medicine, coating.Following nonmetallic ore raw material or the total development trend of material are high-purity, ultra-fine and functionalization.Leading with high pure and ultra-fine nonmetallic mineral deep processing raw material, the various nonmetallic minerals of comprehensive development and utilization.Although by chemical synthesis high pure and ultra-fine powder body can be prepared, but high cost, fail so far for industrialized production.The Main Means obtaining superfine powder remains mechanical activation comminution mode, and the difficulty mechanically producing superfine grinding that superfine powder relies on and classification technique constantly increases.By the research and development of nearly 30 years, have developed grinder respectively with some countries that the U.S., Germany, Japan and the former Soviet Union are representative, rotate the research of super-pine crush equipment of the tens of kinds of types such as crusher, liquid stream pulverizer, high-speed impact type pulverizer, freezing crusher.Mechanical Method is adopted by crushing material to micron or submicron, but to be difficult to obtain nanometer grade powder typically by mechanical crushing method at present.Having the different pulverizing limit for different equipment, the limit of general comminution by gas stream is in submicron order.
Summary of the invention
It is an object of the invention to, for the problems referred to above, it is proposed to a kind of secondary air ultrafine grinding device for crushed limestone, low to realize cost, advantage that efficiency is high.
nullFor achieving the above object，The technical solution used in the present invention is: a kind of secondary air ultrafine grinding device for crushed limestone，Including support、Power set、Mill transmission device、Housing、Rotor、Stepped transmission device、Slewing equipment、Fine powder exports、Feeding mouth、Mill、Main air inlet and pneumatic sealing device，Support is the bottom of whole device，Base is built with mill transmission device，Connecting power device and rotor，Rotor is in the inside of housing parts，The top of housing is connected to stepped transmission device，Housing vertical section is two trapezoidal docking，Top is trapezoidal for wide at the top and narrow at the bottom，Bottom is trapezoidal for upper narrow complimentary close，Housing cross-sectional is all positive round，Below stepped transmission device，The inside of housing is equipped with slewing equipment，Slewing equipment bottom connects from the outwardly directed fine powder outlet of enclosure interior，In fine powder outlet lower section，The lower outside of housing is provided with the upward feeding mouth stretched out，Below feeding mouth，What housing bottom was connected with rotor is mill，The main air inlet arranged below of mill；Also secondary air inlet is set on the top of fine powder outlet.
Technical scheme has the advantages that
The ultrafine grinding device of various embodiments of the present invention, owing to including secondary air inlet, it is possible to improves crush efficiency；Such that it is able to overcome the defect being difficult to obtain nanometer grade powder in prior art, to realize the advantage that ultra-fine precision is pulverized.
Below by drawings and Examples, technical scheme is described in further detail.
Accompanying drawing explanation
Fig. 1 is the super-fine classified mill structure chart described in the embodiment of the present invention；
Wherein accompanying drawing labelling is as follows: 1 support, 2 mill transmission devices, 3 secondary air inlets, 4 housings, 5 stepped transmission devices, 6 slewing equipments, and 7 start sealing device, 8 fine powder outlets, 9 feeding mouths, 10 mills, 11 main air inlets.
Fig. 2 is powder body movement locus sketch；
Powder body movement locus after 21 grindings, 22 coarse powder movement locus, 23 fine powder movement locus.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are illustrated, it will be appreciated that preferred embodiment described herein is merely to illustrate and explains the present invention, is not intended to limit the present invention.
As it is shown in figure 1, a kind of secondary air ultrafine grinding device for crushed limestone, including support, mill transmission device, housing, rotor, stepped transmission device, slewing equipment, fine powder exports, feeding mouth, mill, main air inlet, additionally, also arrange secondary air inlet on the top of fine powder outlet.
nullWherein support 1 is the bottom of whole device，The material selecting density higher is made，The metals such as such as ferrum copper，Base is built with mill transmission device，Connect power part and rotor，Power part can be motor、Diesel engine or gasoline engine etc.，The inside of rotor housing 4 in the drawings，Housing 4 vertical section is two trapezoidal docking，Top is trapezoidal for wide at the top and narrow at the bottom，Bottom is trapezoidal for upper narrow complimentary close，Housing 4 cross section is all positive round，The top of housing 4 is connected to stepped transmission device 5，Below stepped transmission device 5，The inside of housing 4 is equipped with slewing equipment 6，Slewing equipment 6 bottom connects from the internal outwardly directed fine powder outlet 8 of housing 4，Export below 8 at fine powder，The lower outside of housing 4 has the upward feeding mouth 9 stretched out，Below feeding mouth 9，What be connected with rotor bottom housing parts 4 is mill 10，The main air inlet arranged below 11 of mill 10，It is support 1 below；The top exporting 8 at fine powder arranges secondary air inlet 3, and the opening direction that its opening exports 8 with fine powder is contrary.
Owing to introducing secondary air inlet, in crushing process, when coarse granule falls, introduce the further elutriation of secondary air, make the microparticle being mixed into again increase with secondary air, again carry out graded operation, to improve classification efficiency.Coarse-grained material after elutriation falls back in pulverizer under barrel to be pulverized again.
The internal powder body movement locus of common grinder will be as in figure 2 it is shown, after installing secondary air inlet, coarse powder track rising trace will occur again at discharging opening descending phase.
Further, preventing chemical reaction for adapting to the feature of limestone own, the body inner surface of this pulverizer is all zinc surfacing.
Further, the diameter of rotor is 1600-1800mm, and the diameter of upper-lower casing is that root diameter adds 50mm, body height 900-1100mm.
Further, the mode of being in transmission connection of power part and rotor can be gear or belt.
Further, startup sealing device 7 can be set outside slewing equipment 6 bottom fine powder outlet 8.
In sum, due to the fact that and include secondary air inlet, it is possible to improve crush efficiency；Such that it is able to overcome the defect being difficult to obtain nanometer grade powder in prior art, to realize the advantage that ultra-fine precision is pulverized.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, it is not limited to the present invention, although the present invention being described in detail with reference to previous embodiment, for a person skilled in the art, technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature carries out equivalent replacement.All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (3)
- null1. the secondary air ultrafine grinding device for crushed limestone，It is characterized in that，Including support、Power set、Mill transmission device、Housing、Rotor、Stepped transmission device、Slewing equipment、Fine powder exports、Feeding mouth、Mill、Main air inlet and pneumatic sealing device，Support is the bottom of whole device，Base is built with mill transmission device，Connecting power device and rotor，Rotor is in the inside of housing parts，The top of housing is connected to stepped transmission device，Casing center vertical section is two trapezoidal docking，Top is trapezoidal for wide at the top and narrow at the bottom，Bottom is trapezoidal for upper narrow complimentary close，Housing cross-sectional is all positive round，Below stepped transmission device，The inside of housing is equipped with slewing equipment，Slewing equipment bottom connects from the outwardly directed fine powder outlet of enclosure interior，In fine powder outlet lower section，The lower outside of housing is provided with the upward feeding mouth stretched out，Below feeding mouth，What housing bottom was connected with rotor is mill，The main air inlet arranged below of mill；On the top of fine powder outlet, secondary air inlet is set.
- 2. ultrafine grinding device according to claim 1, it is characterised in that the diameter of rotor is 1200-1600mm, the maximum gauge of housing is that root diameter adds 100mm, body height 800-900mm.
- 3. ultrafine grinding device according to claim 2, it is characterised in that apparatus body inner surface is zinc surfacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610186787.4A CN105797840A (en) | 2016-03-29 | 2016-03-29 | Secondary inlet air type ultrafine grinding device for grinding limestone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610186787.4A CN105797840A (en) | 2016-03-29 | 2016-03-29 | Secondary inlet air type ultrafine grinding device for grinding limestone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105797840A true CN105797840A (en) | 2016-07-27 |
Family
ID=56454171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610186787.4A Pending CN105797840A (en) | 2016-03-29 | 2016-03-29 | Secondary inlet air type ultrafine grinding device for grinding limestone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105797840A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3093327A (en) * | 1962-05-23 | 1963-06-11 | Babcock & Wilcox Co | Pulverizer |
| EP0118782A2 (en) * | 1983-02-10 | 1984-09-19 | Kabushiki Kaisha Hosokawa Funtai Kogaku Kenkyusho | Vertical type pulverizing and classifying apparatus |
| JP2769859B2 (en) * | 1989-05-10 | 1998-06-25 | キヤノン株式会社 | Color toner manufacturing method |
| CN2389004Y (en) * | 1999-08-23 | 2000-07-26 | 白霖 | Vertical high-speed impact ultrafine disintegrating machine |
| CN105013568A (en) * | 2015-08-12 | 2015-11-04 | 江苏新业重工股份有限公司 | Vertical type rolling flour mill |
| CN204933572U (en) * | 2015-08-12 | 2016-01-06 | 江苏新业重工股份有限公司 | A kind of vertical rolls grinds formula flour mill |
-
2016
- 2016-03-29 CN CN201610186787.4A patent/CN105797840A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3093327A (en) * | 1962-05-23 | 1963-06-11 | Babcock & Wilcox Co | Pulverizer |
| EP0118782A2 (en) * | 1983-02-10 | 1984-09-19 | Kabushiki Kaisha Hosokawa Funtai Kogaku Kenkyusho | Vertical type pulverizing and classifying apparatus |
| JP2769859B2 (en) * | 1989-05-10 | 1998-06-25 | キヤノン株式会社 | Color toner manufacturing method |
| CN2389004Y (en) * | 1999-08-23 | 2000-07-26 | 白霖 | Vertical high-speed impact ultrafine disintegrating machine |
| CN105013568A (en) * | 2015-08-12 | 2015-11-04 | 江苏新业重工股份有限公司 | Vertical type rolling flour mill |
| CN204933572U (en) * | 2015-08-12 | 2016-01-06 | 江苏新业重工股份有限公司 | A kind of vertical rolls grinds formula flour mill |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160727 |