CN211463483U - Multistage calcium carbonate superfine powder grinds machine - Google Patents
Multistage calcium carbonate superfine powder grinds machine Download PDFInfo
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- CN211463483U CN211463483U CN201922255019.1U CN201922255019U CN211463483U CN 211463483 U CN211463483 U CN 211463483U CN 201922255019 U CN201922255019 U CN 201922255019U CN 211463483 U CN211463483 U CN 211463483U
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Abstract
The utility model discloses a multistage calcium carbonate superfine powder grinding machine, which comprises a grinding machine body, wherein a centrifugal turbine, a first gas-collecting hood, a stopping hood and a second gas-collecting hood are distributed in the grinding machine body; a material through cavity is formed in the middle of the centrifugal turbine; the first gas-collecting hood and the second gas-collecting hood are integrally in a funnel-shaped structure; an air outlet at the upper end of the second air collecting hood is distributed corresponding to the material through cavity of the centrifugal turbine and is distributed below the centrifugal turbine; the blocking cover and the first gas-collecting cover are sequentially distributed in the second gas-collecting cover from top to bottom; the blocking cover is of an approximate funnel-shaped structure, the upper end of the blocking cover is a sealed circular flat plate, and the side wall of the blocking cover is provided with a plurality of blocking air outlets. Adopt the utility model discloses can show the pollution amount of each other that reduces each superfine powder particle diameter, show the whole quality that promotes each model powder, realize that each model powder particle diameter scope is narrower, the quality is more excellent, excellent in use effect.
Description
Technical Field
The utility model relates to a calcium carbonate powder particle size divides sieve technical field, concretely relates to multistage calcium carbonate superfine powder grinds machine.
Background
The calcium carbonate is generally ground by a grinding device, and then the powder is conveyed upwards by airflow, and then the powder with a certain particle size range is screened by a screening device. But when present dividing the sieve to superfine powder, do not have the better branch sieve of realizing multistage particle size superfine powder yet, simultaneously, adopt present grinding machine because grind the intracavity and design to the coarse particle size powder mostly, powder after the grinding moves all around after the intake pipe air blast, can appear easily when leading to dividing the sieve that too big particle size sneaks into the finished product from negative pressure discharge gate gap department, lead to thoughtlessly having the coarse grain impurity that surpasss this model product maximum particle size in the product, seriously reduce the quality of superfine powder product.
The above background disclosure is only provided to aid in understanding the concepts and technical solutions of the present invention, and it does not necessarily belong to the prior art of the present patent application, and it should not be used to assess the novelty and inventive step of the present application without explicit evidence that the above content has been disclosed at the filing date of the present patent application.
SUMMERY OF THE UTILITY MODEL
The utility model provides a to above-mentioned technical problem provide one kind can realize that multistage particle diameter superfine powder divides the sieve, and divides sieve effectual grinding machine.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a multi-stage calcium carbonate superfine powder grinding machine comprises a grinding machine body, wherein a centrifugal turbine, a first gas-collecting hood, a blocking hood and a second gas-collecting hood are distributed in the grinding machine body; a material through cavity is formed in the middle of the centrifugal turbine; the first gas-collecting hood and the second gas-collecting hood are integrally in a funnel-shaped structure; an air outlet at the upper end of the second air collecting hood is distributed corresponding to the material through cavity of the centrifugal turbine and is distributed below the centrifugal turbine; the blocking cover and the first gas-collecting cover are sequentially distributed in the second gas-collecting cover from top to bottom; the blocking cover is of an approximate funnel-shaped structure, the upper end of the blocking cover is a sealed circular flat plate, and the side wall of the blocking cover is provided with a plurality of blocking air outlets; and the air outlets at the upper ends of the first air collecting hoods are correspondingly distributed below the sealed circular flat plate.
Furthermore, an exhaust fan is arranged in the first gas collecting hood.
Furthermore, a blocking sheet is arranged above the blocking air outlet and is in a shape of a tile.
Further, the centrifugal turbine comprises a centrifugal turbine body, and the centrifugal turbine body is sequentially provided with a rotating shaft connecting strut, a first material through cavity, a first centrifugal blade combined roller, a centrifugal material deceleration cavity, a centrifugal material blocking plate, a second material through cavity and a second centrifugal blade combined roller from inside to outside; the upper part and the lower part of the centrifugal turbine body are respectively provided with an inner flange and an outer flange; the inner flange is connected with the rotating shaft connecting strut and the outer flange is connected with the inner flange through spokes; the centrifugal material blocking plate is of a tubular structure, and the upper end of the centrifugal material blocking plate is hermetically connected with an inner flange at the upper part of the centrifugal turbine body; a centrifugal material buffer chamber is also arranged below the inner flange and the outer flange at the lower part of the centrifugal turbine body; the centrifugal material speed reduction cavity and the second material through cavity are communicated with the centrifugal material buffer chamber.
Furthermore, a gas collection cavity is correspondingly arranged below the first material through cavity, and the gas collection cavity is distributed in a funnel-shaped structure.
Further, a plurality of breathing openings have been seted up to the lower extreme of centrifugal material surge chamber, the mouth of breathing corresponds to distribute centrifugal material speed reduction chamber with between the second material leads to the chamber, and be the even cloth of round.
Furthermore, an air outlet at the upper end of the second air collecting hood is correspondingly distributed below the air collecting cavity.
Furthermore, labyrinth seal rings are respectively arranged on an inner flange and an outer flange at the upper part of the centrifugal turbine body; the labyrinth seal ring is respectively arranged on the periphery of the first material through cavity and the periphery of the second material through cavity.
Furthermore, a plurality of high-pressure air inlet pipes are correspondingly arranged at the positions, corresponding to the upper cover of the labyrinth seal ring, on the grinding machine body, and the high-pressure air inlet pipes are uniformly distributed for one circle along the labyrinth seal ring. Furthermore, the position, corresponding to the upper cover of the labyrinth seal ring, of the grinding machine body is correspondingly provided with a high-pressure air chamber ring, the lower part of the high-pressure air chamber ring is uniformly provided with a plurality of through holes which are the same as the labyrinth seal ring below the high-pressure air chamber ring, and the high-pressure air chamber ring is communicated with a high-pressure air inlet pipe.
The utility model has the advantages of compared with the prior art: by adopting the utility model, the first gas-collecting hood, the blocking hood and the second gas-collecting hood are arranged, the powder body is promoted to be lifted upwards after being ground by the boosting air draft acting force of the first gas-collecting hood, through the blocking effect of the sealing round flat plate at the top of the blocking cover, the powder airflow changes the flow direction along with the speed reduction of the inner cavity of the blocking cover and flows out from the blocking air outlet, the heavy particle powder is subjected to preliminary speed reduction in the process and is downwards drawn and flows back to the grinding device, the light particle powder continuously flows upwards, and the light powder and the heavy powder are further shunted under the guiding action of the second gas-collecting hood, the light powder continuously rises to the gas-collecting cavity and the centrifugal turbine, at the moment, before entering the centrifugal turbine, the coarse particle powder is mostly shunted downwards, the proportion of the coarse particle powder of the raw material of the centrifugal turbine is obviously reduced, and the centrifugal screening and the superfine powder screening effects are further improved. Meanwhile, the centrifugal turbine of the utility model is provided with a first material through cavity and a second material through cavity, so that the screening of the powder with two sizes of particle diameters can be realized; the first centrifugal material is blocked and decelerated by the centrifugal material blocking plate, and enters the centrifugal material buffer chamber by the buffering and sinking action of the centrifugal material deceleration cavity, and enters the second material through cavity from bottom to top under the suction action of the second centrifugal blade combined roller, so that the centrifugal screening of the secondary material is realized; the centrifugal material buffer chamber is provided with a breathing port through correspondence, so that the normal buffering stability of airflow pressure such as centrifugation and air extraction is ensured, and the using effect is good.
Drawings
FIG. 1 is a schematic view of the external structure of the upper half of the centrifugal turbine of the present invention;
FIG. 2 is a cut-away view of the centrifugal turbine of the present invention;
FIG. 3 is a schematic view of the internal structure of the grinder of the present invention;
FIG. 4 is a top view of the pulverizer and screen machine body of the present invention in a manner of combined sealing of the high-pressure intake pipes;
fig. 5 is the utility model discloses a top view of milling sieve material machine organism under the sealed mode of plenum ring combination.
Detailed Description
As shown in fig. 1 to 5, a multistage calcium carbonate ultrafine powder grinding machine comprises a grinding machine body 23, wherein a centrifugal turbine, a first gas-collecting hood 21, a blocking hood 18 and a second gas-collecting hood 17 are distributed in the grinding machine body 23; the first gas-collecting hood 21 and the second gas-collecting hood 17 are integrally in a funnel-shaped structure; the blocking hood 18 and the first gas-collecting hood 21 are sequentially distributed in the second gas-collecting hood 17 from top to bottom, and of course, the first gas-collecting hood 21 is correspondingly distributed above the grinding device 25 of the grinder body 23; the blocking cover 18 is of an approximate funnel-shaped structure, the upper end of the blocking cover is a sealed circular flat plate, and the side wall of the blocking cover is provided with a plurality of blocking air outlets 20; the barrier sheet 19 is arranged above the barrier air outlet 20, and the barrier sheet 19 is in a tile shape, so that the downward drainage of coarse particle powder is facilitated. And the air outlets at the upper ends of the first air collecting hoods 21 are correspondingly distributed below the sealed circular flat plate. An exhaust fan 22 is further arranged in the chamber 21-1 in the first gas-collecting hood 21. The centrifugal turbine comprises a centrifugal turbine body, and the centrifugal turbine body is sequentially provided with a rotating shaft connecting pillar 1, a first material through cavity 3, a first centrifugal blade combined roller 12, a centrifugal material deceleration cavity 13, a centrifugal material blocking plate 11, a second material through cavity 5 and a second centrifugal blade combined roller 8 from inside to outside; the upper part and the lower part of the centrifugal turbine body are respectively provided with an inner flange 4 and an outer flange 10; the inner flange 4 is connected with the rotating shaft connecting strut 1 through spokes 2; the outer flange 10 is connected with the inner flange 4 through spokes 6; the centrifugal material baffle plate 11 is of a tubular structure, the upper end of the centrifugal material baffle plate is connected with the inner flange 4 on the upper part of the centrifugal turbine body in a closed mode, the lower end of the centrifugal material baffle plate can be opened or connected with the inner flange 4 on the lower part of the centrifugal turbine body through spokes, and the centrifugal material baffle plate mainly reduces the speed of materials which are centrifuged by the first centrifugal blade combination roller 12 and stops the materials, and prevents the centrifuged high-speed materials from being directly mixed into the second material through cavity 5; a centrifugal material buffer chamber 14 is also arranged below the inner flange and the outer flange at the lower part of the centrifugal turbine body; the centrifugal material speed reducing cavity 13 is communicated with the centrifugal material buffer chamber 14 only through a buffer discharge hole 13-1 at the lower end of the centrifugal material speed reducing cavity; the lower feed inlet of the second material through cavity 5 is communicated with the centrifugal material buffer chamber 14. A plurality of breathing openings 16 have been seted up to the lower extreme of centrifugal material buffer 14 of this embodiment, breathing opening 16 corresponds to distribute centrifugal material speed reduction chamber 13 with between the second material logical chamber 5, and be the even cloth of round. A gas collecting cavity 15 is correspondingly arranged at a feed inlet below the first material through cavity 3, and the gas collecting cavity 15 is distributed in a funnel-shaped structure and is used for collecting gas-powder mixture rising after the materials are ground; the air outlet at the upper end of the second air-collecting hood 17 is correspondingly distributed below the air-collecting cavity 15. The inner flange 4 and the outer flange 10 at the upper part of the centrifugal turbine body are respectively provided with a labyrinth seal ring 7 and a labyrinth seal ring 9; labyrinth seal 7 with labyrinth seal 9 establishes respectively first material leads to the chamber 3 with the periphery in second material leads to chamber 5. Of course, the lower portion of the present invention is further provided with an air inlet duct 24 to provide a blowing air flow.
In order to improve the sealing effect, in this embodiment, a plurality of high-pressure air inlet pipes are correspondingly arranged on the upper cover of the grinding machine body 23 corresponding to the labyrinth seal rings 7 and 9, and the high-pressure air inlet pipes are uniformly distributed for one circle along the labyrinth seal rings, for example, in this embodiment, 8 high-pressure air inlet pipes 26 can be used for combined sealing; the high pressure at the labyrinth seal ring is realized by arranging the high-pressure air inlet pipe 26 (the finished product discharge ports 27 and 28 at the inner side of the labyrinth seal ring are in a negative pressure pumping state, while the outer side of the labyrinth seal ring is generally in a higher pressure state), so that the impurity powder is effectively prevented from being mixed into the inner side from the periphery of the labyrinth seal ring.
Aiming at improving the sealing effect, the embodiment can also be correspondingly provided with a high-pressure air chamber ring 29 through the correspondence on the grinding machine body 23 between the labyrinth seal ring 7 and the upper cover of the labyrinth seal ring 9, a plurality of through holes which are the same as the labyrinth seal ring below the high-pressure air chamber ring 29 are uniformly distributed on the lower part of the high-pressure air chamber ring 29, and the high-pressure air chamber ring is communicated with a high-pressure air inlet pipe 26.
Through the utility model discloses, the powder air current is advanced to go into cavity 21-1 of first gas collecting channel 21, the powder air current dashes at first to the sealed circular flat board of obstruction cover 18, then by the reposition of redundant personnel of slowdown in its cavity 18-1, lighter weight granule blows off from obstruction gas outlet 20, part heavy weight granule slows down to sink and flows back to grinder 25 department from its lower part, lighter weight granule is again under obstruction piece 19 and second gas collecting channel 17 guide effect, further shunts heavy weight granule and light weight granule, part heavy weight granule powder is down-flow from the inner chamber 17-1 lower part of second gas collecting channel 17 slowdown, lighter weight powder then continues to flow upwards, sieve most large granule particle diameter powder for centrifugal turbine's feeding, ensure that the further centrifugal screening effect of superfine powder and promote the product quality. After getting into centrifugal turbine, the superfine powder of each model particle diameter scope is further sieved out under centrifugal turbine high-speed rotation centrifugation, adopts the utility model discloses, through regulating and controlling the negative pressure size of finished product discharge gate 27 (through the corresponding swing joint of labyrinth sealing washer the first material leads to the top in chamber 3), discharge gate 28 (through the corresponding swing joint of labyrinth sealing washer the second material leads to the top in chamber 5) to and the centrifugal rotational speed of matching control centrifugal turbine, can realize the preparation of different particle diameter superfine powder products, and traditional device product particle diameter scope is narrower relatively, excellent in use effect. Adopt the sealed mode of above-mentioned labyrinth seal + high-pressure gas circle simultaneously, can show the pollution amount of each other that reduces each superfine powder particle diameter, show the whole quality that promotes each type of powder, adopt the utility model discloses realize that each type of powder particle diameter range is narrower, the quality is more excellent, excellent in use effect.
Claims (10)
1. The utility model provides a multistage calcium carbonate superfine powder grinds machine which characterized in that: the grinder comprises a grinder body, wherein a centrifugal turbine, a first gas-collecting hood, a blocking hood and a second gas-collecting hood are distributed in the grinder body; a material through cavity is formed in the middle of the centrifugal turbine; the first gas-collecting hood and the second gas-collecting hood are integrally in a funnel-shaped structure; an air outlet at the upper end of the second air collecting hood is distributed corresponding to the material through cavity of the centrifugal turbine and is distributed below the centrifugal turbine; the blocking cover and the first gas-collecting cover are sequentially distributed in the second gas-collecting cover from top to bottom; the blocking cover is of an approximate funnel-shaped structure, the upper end of the blocking cover is a sealed circular flat plate, and the side wall of the blocking cover is provided with a plurality of blocking air outlets; and the air outlets at the upper ends of the first air collecting hoods are correspondingly distributed below the sealed circular flat plate.
2. The multi-stage calcium carbonate ultrafine powder grinding machine according to claim 1, characterized in that: an exhaust fan is also arranged in the first gas-collecting hood.
3. The multi-stage calcium carbonate ultrafine powder grinding machine according to claim 1, characterized in that: and a blocking sheet is arranged above the blocking air outlet and is in a tile-like shape.
4. The multi-stage calcium carbonate ultrafine powder grinding machine according to claim 1, characterized in that: the centrifugal turbine comprises a centrifugal turbine body, and the centrifugal turbine body is sequentially provided with a rotating shaft connecting pillar, a first material through cavity, a first centrifugal blade combined roller, a centrifugal material speed reducing cavity, a centrifugal material blocking plate, a second material through cavity and a second centrifugal blade combined roller from inside to outside; the upper part and the lower part of the centrifugal turbine body are respectively provided with an inner flange and an outer flange; the inner flange is connected with the rotating shaft connecting strut and the outer flange is connected with the inner flange through spokes; the centrifugal material blocking plate is of a tubular structure, and the upper end of the centrifugal material blocking plate is hermetically connected with an inner flange at the upper part of the centrifugal turbine body; a centrifugal material buffer chamber is also arranged below the inner flange and the outer flange at the lower part of the centrifugal turbine body; the centrifugal material speed reduction cavity and the second material through cavity are communicated with the centrifugal material buffer chamber.
5. The multi-stage calcium carbonate ultrafine powder grinding machine according to claim 4, characterized in that: the lower part of the first material through cavity is also correspondingly provided with a gas collection cavity which is distributed in a funnel-shaped structure.
6. The multi-stage calcium carbonate ultrafine powder grinding machine according to claim 4, characterized in that: a plurality of breathing openings have been seted up to the lower extreme of centrifugal material surge chamber, the mouth of breathing corresponds to be distributed centrifugal material speed reduction chamber with between the second material leads to the chamber, and is the even cloth of round.
7. The multi-stage calcium carbonate ultrafine powder grinding machine according to claim 5, characterized in that: and the air outlets at the upper ends of the second air collecting hoods are correspondingly distributed below the air collecting cavity.
8. The multi-stage calcium carbonate ultrafine powder grinding machine according to claim 4, characterized in that: labyrinth seal rings are respectively arranged on the inner flange and the outer flange at the upper part of the centrifugal turbine body; the labyrinth seal ring is respectively arranged on the periphery of the first material through cavity and the periphery of the second material through cavity.
9. The multi-stage calcium carbonate ultrafine powder grinding machine according to claim 8, characterized in that: a plurality of high-pressure air inlet pipes are correspondingly arranged at the positions, corresponding to the upper cover of the labyrinth seal ring, on the grinding machine body, and the high-pressure air inlet pipes are evenly distributed for one circle along the labyrinth seal ring.
10. The multi-stage calcium carbonate ultrafine powder grinding machine according to claim 8, characterized in that: the high-pressure air chamber ring is correspondingly arranged at the position, corresponding to the upper cover of the labyrinth seal ring, of the grinding machine body, a plurality of through holes identical to the labyrinth seal ring below the high-pressure air chamber ring are uniformly distributed at the lower part of the high-pressure air chamber ring, and the high-pressure air chamber ring is communicated with a high-pressure air inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922255019.1U CN211463483U (en) | 2019-12-16 | 2019-12-16 | Multistage calcium carbonate superfine powder grinds machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922255019.1U CN211463483U (en) | 2019-12-16 | 2019-12-16 | Multistage calcium carbonate superfine powder grinds machine |
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| CN211463483U true CN211463483U (en) | 2020-09-11 |
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| CN201922255019.1U Active CN211463483U (en) | 2019-12-16 | 2019-12-16 | Multistage calcium carbonate superfine powder grinds machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114044536A (en) * | 2021-12-09 | 2022-02-15 | 安徽骏马新材料科技股份有限公司 | Environment-friendly red lead preparation process |
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2019
- 2019-12-16 CN CN201922255019.1U patent/CN211463483U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114044536A (en) * | 2021-12-09 | 2022-02-15 | 安徽骏马新材料科技股份有限公司 | Environment-friendly red lead preparation process |
| CN114044536B (en) * | 2021-12-09 | 2023-09-01 | 安徽骏马新材料科技股份有限公司 | Environment-friendly red lead preparation process |
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