CN212524348U - Food-grade calcium carbonate raw ore ball-milling device - Google Patents
Food-grade calcium carbonate raw ore ball-milling device Download PDFInfo
- Publication number
- CN212524348U CN212524348U CN202020919691.6U CN202020919691U CN212524348U CN 212524348 U CN212524348 U CN 212524348U CN 202020919691 U CN202020919691 U CN 202020919691U CN 212524348 U CN212524348 U CN 212524348U
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- Prior art keywords
- main pipe
- air
- calcium carbonate
- food
- rotary drum
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- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 title claims abstract description 90
- 229910000019 calcium carbonate Inorganic materials 0.000 title claims abstract description 45
- 238000000498 ball milling Methods 0.000 title claims abstract description 15
- 239000000428 dust Substances 0.000 claims abstract description 23
- 235000013305 food Nutrition 0.000 claims abstract description 11
- 238000001914 filtration Methods 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 claims description 6
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 1
- 235000017491 Bambusa tulda Nutrition 0.000 claims 1
- 241001330002 Bambuseae Species 0.000 claims 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 1
- 239000011425 bamboo Substances 0.000 claims 1
- 238000012216 screening Methods 0.000 abstract description 10
- 239000000463 material Substances 0.000 description 17
- 239000004744 fabric Substances 0.000 description 11
- 239000002245 particle Substances 0.000 description 9
- 239000008187 granular material Substances 0.000 description 6
- 238000000227 grinding Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 235000013365 dairy product Nutrition 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 230000035764 nutrition Effects 0.000 description 2
- 239000011236 particulate material Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 235000013622 meat product Nutrition 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
A food-grade calcium carbonate raw ore ball milling device comprises a ball mill body, wherein the ball mill body comprises a rotary drum, two ends of the rotary drum are provided with rotary shafts, the rotary shafts are connected through bearing seats, the wall of the rotary drum is provided with gear rings, the gear rings are driven to rotate by a driving device, balls are placed in the rotary drum, the rotary shafts are hollow rotary shafts, two ends of each hollow rotary shaft are of an opening structure, and the hollow rotary shafts are communicated with an inner cavity of the rotary drum; the two hollow rotating shafts are respectively and rotatably connected with the air inlet main pipe and the air outlet main pipe through bearings, the air outlet main pipe is communicated with an air inlet of the bag-type dust remover through a pipeline, and an air outlet of the bag-type dust remover is connected with an induced draft fan through a pipeline; a filtering screen is arranged in the air outlet main pipe, and a first ventilating baffle is arranged in the air inlet main pipe. The utility model discloses improve traditional ball mill to filter and collect food level calcium carbonate effectively, the screening quality is high, and the screening efficiency is high.
Description
Technical Field
The utility model belongs to food level calcium carbonate apparatus for producing field, in particular to food level calcium carbonate raw ore ball-milling device.
Background
The food-grade calcium carbonate is used as a high-quality calcium source for supplementing calcium and various nutrition enhancers, is widely applied to the industries of calcium-supplementing nutrition and health care food and medicine in modern life, and is a high-quality nutrition-enhancing additive in the industries of dairy products, meat products, flour products, dairy products and the like. Food grade calcium carbonate is prepared from raw ore which is typically first crushed and second crushed to form small particle stones which are then ground by a grinder. The grinding requirement of the food-grade calcium carbonate is higher than that of industrial-grade calcium carbonate, the food-grade calcium carbonate powder is finer, and the particle diameter is 38 micrometers.
At present, most of grinding devices adopted for producing industrial-grade calcium carbonate are ball mills, the existing ball mill is shown in figure 8, a ball body is placed in a cylinder body, the rotating cylinder body drives the ball body and a material to rotate together, the ball body can fall down to smash the material when rotating to a high point, then hammering and grinding are carried out, strip-shaped bulges are generally arranged on the inner wall of the cylinder body, and the ball body can be driven to rise to a certain height. The outer wall of the cylinder body is provided with a plurality of sieve pores for screening small granular materials.
However, the particle diameter screened by the existing ball mill is large, and the requirement of food-grade calcium carbonate cannot be met, so that how to screen the food-grade calcium carbonate meeting the requirement by using the ball mill is the technical problem to be solved by the technical scheme.
Disclosure of Invention
In view of the technical problem that the background art exists, the utility model provides a former ore ball-milling device of food level calcium carbonate has improved traditional ball mill to screening and collection food level calcium carbonate effectively, the screening quality is high, and the screening efficiency is high.
In order to solve the technical problem, the utility model discloses following technical scheme has been taken and has been realized:
a food-grade calcium carbonate raw ore ball milling device comprises a ball mill body, wherein the ball mill body comprises a rotary drum, two ends of the rotary drum are provided with rotary shafts, the rotary shafts are connected through bearing seats, the wall of the rotary drum is provided with gear rings, the gear rings are driven to rotate by a driving device, balls are placed in the rotary drum, the rotary shafts are hollow rotary shafts, two ends of each hollow rotary shaft are of an opening structure, and the hollow rotary shafts are communicated with an inner cavity of the rotary drum; the two hollow rotating shafts are respectively and rotatably connected with the air inlet main pipe and the air outlet main pipe through bearings, the air outlet main pipe is communicated with an air inlet of the bag-type dust remover through a pipeline, and an air outlet of the bag-type dust remover is connected with an induced draft fan through a pipeline; a filtering screen is arranged in the air outlet main pipe, and a first ventilating baffle is arranged in the air inlet main pipe.
In a preferred scheme, the diameters of the air inlet main pipe and the air outlet main pipe are both smaller than the inner diameter of the hollow rotating shaft, the air inlet main pipe and the air outlet main pipe are inserted into the middle idle shaft, and the air inlet main pipe and the air outlet main pipe are both communicated with the inner cavity of the rotating drum; the filtering screen and the first air-permeable baffle are respectively positioned on the end surfaces of the two sides of the rotary drum.
In a preferred scheme, a second air-permeable baffle is arranged in the rotary drum, and the second air-permeable baffle is arranged close to the filtering screen.
In the preferred scheme, a plurality of reducing air holes are formed in the middle of the second air baffle, and the inner diameter of each reducing air hole is gradually increased from one side of the filter screen to the other side of the filter screen.
In a preferred scheme, the first ventilating baffle is provided with a plurality of reducing ventilating holes, and the inner diameters of the reducing ventilating holes are gradually reduced from one side of the inner cavity of the rotary drum to one side of the air inlet main pipe.
In a preferable scheme, an air heater is arranged on the air inlet main pipe.
In a preferred scheme, an air filter is arranged at an inlet of the air inlet main pipe.
In the preferred scheme, a discharge hole at the bottom of the bag-type dust collector is provided with a screw conveyor, and the screw conveyor is used for conveying and collecting calcium carbonate powder.
This patent can reach following beneficial effect:
the utility model provides an in the scheme, improve the ejection of compact mode of material, the draught fan provides the air suction, and the air is responsible for one end from the admission and gets into, and mobile air drives the calcium carbonate dust and gets into to the sack cleaner in, and the sack cleaner is collected the calcium carbonate dust, filter screen cloth adopt the mesh screen cloth, the screen cloth of this specification satisfies food level calcium carbonate requirement. The particle diameter of the target sieve corresponding to the screening is about micron, and the calcium carbonate powder of the grade is easy to generate dust suspension in flowing air. Therefore, the technical scheme can effectively screen out food-grade calcium carbonate powder meeting the requirements.
This technical scheme has adopted the ventilative baffle of second, and is equipped with the reducing bleeder vent on the ventilative baffle of second, and the advantage lies in: in the grinding process, the material of probably appearing small granule splashes in the reducing breather hole, and the shape of reducing breather hole is the horn mouth design, and on the inclined plane of horn mouth was strikeed to particulate material, more did benefit to the particulate material and kick-backed, reduced the direct risk that strikes filter screen cloth of material to filter screen cloth's life has been improved.
Drawings
The invention will be further explained with reference to the following figures and examples:
FIG. 1 is a schematic diagram of the process of the present invention;
FIG. 2 is a view of the external structure of the ball mill body of the present invention;
FIG. 3 is a cross-sectional view A-A of the body of the ball mill of FIG. 1;
FIG. 4 is a cross-sectional view of the body B-B of the ball mill of FIG. 1;
FIG. 5 is a cross-sectional view of the body C-C of the ball mill of FIG. 1;
FIG. 6 is a structural view of a second air permeable baffle of the present invention;
FIG. 7 is a sectional view of a second baffle of the present invention;
fig. 8 is a three-dimensional structural view of a conventional ball mill.
In the figure: the ball mill comprises a ball mill body 1, a hollow rotating shaft 2, an air inlet main pipe 3, an air outlet main pipe 4, a bag-type dust collector 5, a spiral conveyor 51, an induced draft fan 6, a filter screen 7, a first ventilating baffle 81, a second ventilating baffle 82, a reducing ventilating hole 9, an air heater 10 and an air filter 11.
Detailed Description
A preferred scheme is as shown in fig. 1 to 7, the food-grade calcium carbonate raw ore ball milling device comprises a ball mill body 1, wherein the ball mill body 1 comprises a rotary drum, rotary shafts are arranged at two ends of the rotary drum and connected through bearing seats, a gear ring is arranged on the wall of the rotary drum and driven by a driving device to rotate, a ball is placed in the rotary drum, the rotary shaft is a hollow rotary shaft 2, two ends of the hollow rotary shaft 2 are of an opening structure, and the hollow rotary shaft 2 is communicated with an inner cavity of the rotary drum; the two hollow rotating shafts 2 are respectively and rotatably connected with the air inlet main pipe 3 and the air outlet main pipe 4 through bearings, the air outlet main pipe 4 is communicated with an air inlet of the bag-type dust remover 5 through a pipeline, and an air outlet of the bag-type dust remover 5 is connected with the induced draft fan 6 through a pipeline; a filtering screen 7 is arranged in the air outlet main pipe 4, and a first ventilating baffle 81 is arranged in the air inlet main pipe 3.
As shown in fig. 8, a ball is placed in a cylinder of an existing ball mill, the rotating cylinder drives the ball and a material to rotate together, the ball falls down to hit the material when rotating to a high point, and then is hammered and ground, and generally, a strip-shaped protrusion is arranged on the inner wall of the cylinder and can drive the ball to rise to a certain height. The outer wall of the cylinder body is provided with a plurality of sieve pores for screening small granular materials. However, the particle diameter screened by the existing ball mill is large, and the requirement of food-grade calcium carbonate cannot be met.
Among this technical scheme, improve the ejection of compact mode of material, draught fan 6 provides the air draft, and the air is responsible for 3 one ends from admitting air and gets into, and the air that flows drives the calcium carbonate dust and gets into to sack cleaner 5 in, sack cleaner 5 collects the calcium carbonate dust, filter screen 7 adopt 400 mesh screen cloth, the screen cloth of this specification satisfies the requirement of food level calcium carbonate.
Further, the diameters of the main air inlet pipe 3 and the main air outlet pipe 4 are both smaller than the inner diameter of the hollow rotating shaft 2, the main air inlet pipe 3 and the main air outlet pipe 4 are inserted into the hollow rotating shaft 2, and the main air inlet pipe 3 and the main air outlet pipe 4 are both communicated with the inner cavity of the rotating drum; the filter screen 7 and the first air-permeable baffle 81 are respectively positioned on the two side end surfaces of the rotary drum. The air inlet main pipe 3 and the air outlet main pipe 4 are connected with the hollow rotating shaft 2 by adopting bearings, so that the air inlet main pipe 3 and the air outlet main pipe 4 can not rotate in the rotating process of the hollow rotating shaft 2,
further, a second air-permeable barrier 82 is provided in the drum, and the second air-permeable barrier 82 is provided adjacent to the filter screen 7. The second air-permeable barrier 82 functions to: at the rotatory in-process of ball mill, the particle material can strike filter screen 7, causes filter screen 7 to warp easily, has installed second air-permeable baffle 82 before filter screen 7 additional, and preferably, second air-permeable baffle 82 laminates the setting of rotary drum curb plate inner wall, and second air-permeable baffle 82 laminates mutually with filter screen 7 simultaneously, and filter screen 7 prevents that the material from directly striking filter screen 7.
Furthermore, a plurality of diameter-variable air holes 9 are formed in the middle of the second air baffle 82, and the inner diameter of each diameter-variable air hole 9 is gradually increased from one side of the filter screen 7 to the other side thereof. Reducing bleeder vent 9 aim at: in the material that probably appears the tiny granule splashes reducing bleeder vent 9, the shape of reducing bleeder vent 9 is the horn mouth design, and on the inclined plane of horn mouth was strikeed to granule material, more do benefit to granule material and kick-back, reduced the direct risk that strikes filter screen cloth 7 of material to filter screen cloth 7's life has been improved.
Furthermore, the first air-permeable baffle 81 is provided with a plurality of reducing air holes 9, and the inner diameter of the reducing air holes 9 gradually decreases from one side of the inner cavity of the drum to one side of the main air inlet pipe 3. The first air baffle 81 can prevent the material from splashing into the main air inlet pipe 3.
Further, an air heater 10 is provided on the main air intake pipe 3. The hot air is advantageous to reduce the humidity of the material, thereby suspending the calcium carbonate dust, and the air heater 10 may be a heating wire heater.
Further, an air filter 11 is provided at an inlet of the main intake pipe 3. The air filter 11 is used to improve the cleanliness of air and filter out dust in the air.
Further, a discharge hole at the bottom of the bag-type dust collector 5 is provided with a screw conveyor 51, and the screw conveyor 51 is used for conveying and collecting calcium carbonate powder.
The working principle of the whole device is as follows:
the utility model provides an in the scheme, improve the ejection of compact mode of material, draught fan 6 provides the air draft, and the air is responsible for 3 one ends from admitting air and gets into, and mobile air drives the calcium carbonate dust and gets into to sack cleaner 5 in, sack cleaner 5 is collected the calcium carbonate dust, filter screen 7 adopt 400 mesh screen cloth, the screen cloth of this specification satisfies food level calcium carbonate requirement. In the technical scheme, the other factor for controlling the screening quality is the wind power of the draught fan 6, the larger the wind power is, the larger the diameter of the calcium carbonate dust particles suspended in the air is, and the smaller the wind power is, the smaller the diameter of the calcium carbonate dust particles suspended in the air is, so that the air quantity of the draught fan 6 is well controlled, the screening quality is improved, the phenomenon that the calcium carbonate with larger particles splashes to the position of the filter screen 7 is avoided, and the burden is brought to the filter screen 7.
Claims (8)
1. The utility model provides a raw ore ball-milling device of food level calcium carbonate, includes ball mill body (1), and ball mill body (1) includes the rotary drum, and the rotary drum both ends are provided with the pivot, and the pivot is passed through the bearing frame and is connected, and the section of thick bamboo wall of rotary drum is provided with the ring gear, and the ring gear is rotatory by the drive arrangement drive, has placed spheroid, its characterized in that in the rotary drum: the rotating shaft is a hollow rotating shaft (2), two ends of the hollow rotating shaft (2) are of an opening structure, and the hollow rotating shaft (2) is communicated with an inner cavity of the rotating drum; the two hollow rotating shafts (2) are respectively and rotatably connected with the air inlet main pipe (3) and the air outlet main pipe (4) through bearings, the air outlet main pipe (4) is communicated with an air inlet of the bag-type dust collector (5) through a pipeline, and an air outlet of the bag-type dust collector (5) is connected with a draught fan (6) through a pipeline; a filtering screen (7) is arranged in the air outlet main pipe (4), and a first ventilating baffle (81) is arranged in the air inlet main pipe (3).
2. The food-grade calcium carbonate raw ore ball milling device according to claim 1, characterized in that: the diameters of the air inlet main pipe (3) and the air outlet main pipe (4) are smaller than the inner diameter of the hollow rotating shaft (2), the air inlet main pipe (3) and the air outlet main pipe (4) are inserted into the hollow rotating shaft (2), and the air inlet main pipe (3) and the air outlet main pipe (4) are communicated with the inner cavity of the rotating drum; the filtering screen (7) and the first air-permeable baffle (81) are respectively positioned on the end surfaces of the two sides of the rotary drum.
3. The food-grade raw calcium carbonate ore ball milling device according to claim 2, characterized in that: a second air-permeable baffle (82) is arranged in the rotary drum, and the second air-permeable baffle (82) is arranged close to the filtering screen (7).
4. The food-grade raw calcium carbonate ore ball milling device according to claim 3, characterized in that: the middle part of the second ventilating baffle plate (82) is provided with a plurality of reducing ventilating holes (9), and the inner diameter of the reducing ventilating holes (9) is gradually increased from one side of the filtering screen (7) to the other side.
5. The food-grade calcium carbonate raw ore ball milling device according to claim 1, characterized in that: the first ventilating baffle (81) is provided with a plurality of reducing air holes (9), and the inner diameter of each reducing air hole (9) is gradually reduced from one side of the inner cavity of the rotary drum to one side of the main air inlet pipe (3).
6. The food-grade calcium carbonate raw ore ball milling device according to claim 1, characterized in that: an air heater (10) is arranged on the air inlet main pipe (3).
7. The food-grade calcium carbonate raw ore ball milling device according to claim 1, characterized in that: an air filter (11) is arranged at the inlet of the air inlet main pipe (3).
8. The food-grade calcium carbonate raw ore ball milling device according to claim 1, characterized in that: a discharge hole at the bottom of the bag-type dust collector (5) is provided with a screw conveyor (51), and the screw conveyor (51) is used for conveying and collecting calcium carbonate powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020919691.6U CN212524348U (en) | 2020-05-27 | 2020-05-27 | Food-grade calcium carbonate raw ore ball-milling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020919691.6U CN212524348U (en) | 2020-05-27 | 2020-05-27 | Food-grade calcium carbonate raw ore ball-milling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212524348U true CN212524348U (en) | 2021-02-12 |
Family
ID=74544506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020919691.6U Expired - Fee Related CN212524348U (en) | 2020-05-27 | 2020-05-27 | Food-grade calcium carbonate raw ore ball-milling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212524348U (en) |
-
2020
- 2020-05-27 CN CN202020919691.6U patent/CN212524348U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210212 |