CN115999755A - Calcium carbonate fine grinding control system with improved structure - Google Patents
Calcium carbonate fine grinding control system with improved structure Download PDFInfo
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- CN115999755A CN115999755A CN202310109234.9A CN202310109234A CN115999755A CN 115999755 A CN115999755 A CN 115999755A CN 202310109234 A CN202310109234 A CN 202310109234A CN 115999755 A CN115999755 A CN 115999755A
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- finished product
- powder
- bin
- control system
- calcium carbonate
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- 238000000227 grinding Methods 0.000 title claims abstract description 70
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 title claims abstract description 58
- 229910000019 calcium carbonate Inorganic materials 0.000 title claims abstract description 29
- 239000000843 powder Substances 0.000 claims abstract description 56
- 239000002994 raw material Substances 0.000 claims abstract description 28
- 238000004806 packaging method and process Methods 0.000 claims description 11
- 239000000428 dust Substances 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- 239000012535 impurity Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 239000010813 municipal solid waste Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 7
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
A calcium carbonate fine grinding control system with an improved structure relates to the technical field of calcium carbonate powder production. Comprises a jaw crusher, a fine jaw crusher, a first bucket elevator, a belt conveyor, a raw material bin, a vertical grinding roller machine, a finished product collector, a buffer bin, a PLC control system and a plurality of finished product bins and fine classification devices. According to the invention, raw ore powder is fed into a vertical grinding roller machine through a wind locking feeder after the crushing and purifying processes, and is blown up under the high-speed wind power of a fan and the grinding action of the grinding roller, qualified powder is filtered through a separator, and grading separation treatment is carried out according to the granularity fineness of the calcium carbonate powder, so that the finished powder is produced efficiently and simultaneously has high enough quality; the whole control system has reasonable design, high productivity and high production safety; the calcium carbonate grinding control system has the advantages of compact structure, high raw ore utilization rate, high production safety and energy conservation and high efficiency.
Description
Technical Field
The invention relates to the technical field of calcium carbonate powder production, in particular to a calcium carbonate fine grinding control system with an improved structure.
Background
In recent years, the utilization rate of calcium carbonate in various industries is rapidly improved, and the market demand for calcium carbonate powder products mainly meets the requirements of certain particle size distribution and particle morphology. The existing nonmetallic ore grinding system has the defects of low process design, low system automation degree, poor production safety, distinct sizes and edges and corners in the finished powder, does not meet the market demand, and increases the production energy consumption. The above-mentioned drawbacks are thus a problem that is currently in urgent need to be solved.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a calcium carbonate ore fine grinding control system with an improved structure, which can prepare and obtain calcium carbonate powder with composite requirements and can realize an integrated control system with intelligent control, high safety and low energy consumption.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a calcium carbonate fine grinding control system with an improved structure comprises a jaw crusher, a fine jaw crusher, a first bucket elevator, a belt conveyor, a raw material bin, a vertical grinding roller machine, a finished product collector, a buffer bin, a PLC control system, a plurality of finished product bins and a fine classification device;
the lower end of the first bucket elevator is connected with a fine crushing jaw crusher, the fine crushing jaw crusher is connected with the jaw crusher, and the upper end of the first bucket elevator is connected with a raw material bin through a belt conveyor; the raw material powder transported by the first bucket elevator is transported to a raw material bin through a belt conveyor; the lower part of the raw material bin is connected with the lower end of a second bucket elevator through a belt scale, and raw material powder is conveyed to a vertical grinding roller machine through the second bucket elevator;
the upper end of the second bucket elevator is connected with the vertical grinding roller machine through the air locking feeding machine; the vertical grinding roller machine is provided with a motor and is used for driving the grinding roller to operate; the vertical grinding roller machine is provided with an exhaust fan which is used for blowing the powder ground in the grinding roller machine to pass through the upper separator and enter the finished product collector through a pipeline; the powder in the finished product collector flows into a buffer bin, then is finely classified by a fine classification device, and finally is packaged into bags by a packaging machine.
Preferably, in the calcium carbonate fine grinding control system with the improved structure, the fine grading device is composed of a grader, a graded finished product collector, a finished product bin and a packaging machine, wherein an inlet of the grader is connected with a buffer bin, an outlet of the top of the grader is connected with the graded finished product collector, an outlet of the bottom of the grader is connected with a screw conveyor through a precise air locking blanking valve, a discharging end of the screw conveyor is connected with the bottom of a third bucket elevator, the upper part of the third bucket elevator is connected with a finished product bin II and a finished product bin III, and the graded finished product collector is connected with a finished product bin I through a rigid air locking blanking valve.
Preferably, in the calcium carbonate fine grinding control system with the improved structure, finished product powder after grinding treatment by the vertical roller mill is conveyed to a buffer bin and further conveyed to a classifier to carry out fine treatment on the finished product; the high-quality fine powder material is conveyed to a graded finished product collector, flows into a finished product bin I through a rigid air locking blanking valve, and is packaged into bags through a packaging machine below; coarse powder flows into the screw conveyor through the precise air locking blanking valve, is conveyed through the third bucket elevator, flows into the second and third finished product bins, and is packaged into bags through the packaging machine below.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, raw ore powder is fed into a vertical grinding roller machine through a wind locking feeder after the crushing and purifying processes, and is blown up under the high-speed wind power of a fan and the grinding action of the grinding roller, qualified powder is filtered through a separator, and grading separation treatment is carried out according to the granularity fineness of the calcium carbonate powder, so that the finished powder is produced efficiently and simultaneously has high enough quality; the whole control system has reasonable design, high productivity and high production safety; the calcium carbonate grinding control system has the advantages of compact structure, high raw ore utilization rate, high production safety and energy conservation and high efficiency.
2. The invention adopts a two-stage crushing method to control the crushing fineness of the raw ore, so as to improve the efficiency and ensure the quality of the grinding later. The multi-step buffering method is adopted, the impurity in the raw ore and the impurity doped in the grinding process are removed by matching with the impurity removing device, and the integral grinding speed can be controlled within a certain range. By arranging the air quantity regulating valve, the stability of air quantity and air pressure in the system is ensured, and the fluctuation of quality indexes of finished powder caused by overlarge or undersize instantaneous flow is avoided.
Drawings
Fig. 1 is a schematic structural view of a calcium carbonate fine grinding control system of the improved structure of the present invention.
The reference numerals in the drawings mean:
1-jaw crusher, 2-fine crushing jaw crusher, 3-first bucket elevator, 31-iron remover, 4-raw material bin, 41-belt conveyor, 42-first pulse bag dust collector, 43-belt scale, 44-bar gate, 5-vertical grinding roller, 51-separator, 52-air locking feeder, 53-motor, 54-air volume regulating valve, 55-exhaust fan, 6-finished product collector, 7-buffer bin, 8-finished product bin, 81-rigid air locking blanking valve, 82-classified finished product collector, 83-second pulse bag dust collector, 84-rotary blanking device, 85-vibrator, 9-packing machine, 10-classifier, 101-precise air locking blanking valve and 11-screw conveyor.
Detailed Description
As shown in fig. 1, the calcium carbonate fine grinding control system with the improved structure provided by the invention comprises a jaw crusher 1, a fine jaw crusher 2, a first bucket elevator 3, a belt conveyor 41, a raw material bin 4, a vertical grinding roller 5, a finished product collector 6, a buffer bin 7, a PLC control system, a plurality of finished product bins and a fine classification device.
The lower end of the first bucket elevator 3 is connected with the fine crushing jaw crusher 2, the fine crushing jaw crusher 2 is connected with the jaw crusher 1, and the upper end of the first bucket elevator 3 is connected with the raw material bin 4 through the belt conveyor 41. The raw ore is crushed into small pieces by two stages through a jaw crusher 1 and a fine crushing jaw crusher 2, and is continuously conveyed through a first bucket elevator 3; the raw material bin 4 plays a role in storing raw material powder; the raw material powder transported by the first bucket elevator 3 is transported to the raw material bin 4 by the belt conveyor 41; the lower part of the raw material bin 4 is connected with the lower end of a second bucket elevator through a belt scale 43, and raw material powder is conveyed to the vertical grinding roller machine 5 through the second bucket elevator. The belt scale 43 mainly controls the flow rate of the powder so that a sufficient amount of stable powder enters the vertical grinding roll machine 5.
And an iron remover 31 is also arranged on the connecting pipeline between the fine crushing jaw crusher 2 and the first bucket elevator 3 and is used for adsorbing iron-containing sundries in mineral aggregate. The inlet of the raw material bin 4 is provided with a first pulse bag type dust collector 42 for filtering impurity dust in raw materials; the outlet is provided with a bar gate 44 for controlling the flow rate of the feedstock.
The upper end of the second bucket elevator is connected with a vertical grinding roller machine 5 through an air locking feeding machine 52, and the vertical grinding roller machine 5 is a main grinding device part; the raw materials to be processed are quantitatively conveyed from a raw material bin 4 through a belt scale 43 and a second bucket elevator, and the flow is controlled by a locking air feeder 52 to enter from a feed inlet of a vertical grinding roller machine 5; the top of the vertical grinding roller machine 5 is provided with a separator 51, the separator 51 is used for separating and grading discharge of powder materials with different granularity processed in the vertical grinding roller machine 5, the powder materials are discharged when the qualified size granularity requirement is met, and the powder materials continuously return to the grinding roller for further grinding when the size granularity requirement is not met; the vertical grinding roller machine 5 is provided with a motor 53 for driving the grinding roller to operate; the vertical roller mill 5 is provided with an exhaust fan 55 for blowing the powder ground in the roller mill to pass through the upper separator 51 and enter the finished product collector 6 through a pipeline; the powder in the finished product collector 6 flows into the surge bin 7, then is finely classified by the fine classification device, and finally is packed into bags by the packing machine 9.
The outlet end of the exhaust fan 55 is provided with an air quantity regulating valve 54, which mainly controls the air quantity and the air pressure in the mill and improves the grinding efficiency and the powder granularity quality.
The fine grading device consists of a grading machine 10, a grading finished product collector 82, a finished product bin and a packaging machine 9, wherein an inlet of the grading machine 10 is connected with the buffer bin 7, an outlet of the top of the grading machine is connected with the grading finished product collector 82, an outlet of the bottom of the grading machine is connected with the screw conveyor 11 through a precise air locking blanking valve 101, a discharging end of the screw conveyor 11 is connected with the bottom of a third bucket elevator, the upper part of the third bucket elevator is connected with a finished product bin II and a finished product bin III, and the grading finished product collector 82 is connected with a finished product bin I through a rigid air locking blanking valve 81.
The finished product powder after grinding treatment by the vertical roller mill 5 is conveyed to a buffer bin 7 and further conveyed to a classifier 10 for fine treatment of the finished product. The high-quality fine powder is conveyed to a classified finished product collector 82, flows into a finished product warehouse I through a rigid air locking blanking valve 81, and is packaged into bags through a packaging machine 9 below; coarse powder flows into the screw conveyor 11 through the precise air locking blanking valve 101, is conveyed through the third bucket elevator, flows into the second and third finished product bins, and is packaged into bags through the lower packaging machine 9.
A second pulse bag type dust collector 83 is arranged at the inlet of the finished product bin and is used for filtering impurity dust in the finished product powder; the wall of the finished product bin is provided with a vibrator 84 for preventing powder from being attached in the bin; the outlet is provided with a rotary blanking device 85 for controlling the flow rate of the finished powder.
According to the invention, raw ore powder is fed into a vertical grinding roller machine through a wind locking feeder after the crushing and purifying processes, and is blown up under the high-speed wind power of a fan and the grinding action of the grinding roller, qualified powder is filtered through a separator, and grading separation treatment is carried out according to the granularity fineness of the calcium carbonate powder, so that the finished powder is produced efficiently and simultaneously has high enough quality; the whole control system has reasonable design, high productivity and high production safety; the calcium carbonate grinding control system has the advantages of compact structure, high raw ore utilization rate, high production safety and energy conservation and high efficiency.
The foregoing is merely illustrative and explanatory of the principles of the invention, as various modifications and additions may be made to the specific embodiments described, or similar thereto, by those skilled in the art, without departing from the principles of the invention or beyond the scope of the appended claims.
Claims (8)
1. The calcium carbonate fine grinding control system with the improved structure is characterized by comprising a jaw crusher (1), a fine crushing jaw crusher (2), a first bucket elevator (3), a belt conveyor (41), a raw material bin (4), a vertical grinding roller machine (5), a finished product collector (6), a buffer bin (7), a PLC control system, a plurality of finished product bins and a fine classification device;
the lower end of the first bucket elevator (3) is connected with a fine crushing jaw crusher (2), the fine crushing jaw crusher (2) is connected with the jaw crusher (1), and the upper end of the first bucket elevator (3) is connected with a raw material bin (4) through a belt conveyor (41); the raw material powder transported by the first bucket elevator (3) is transported to a raw material bin (4) through a belt conveyor (41); the lower part of the raw material bin (4) is connected with the lower end of a second bucket elevator through a belt scale (43), and raw material powder is conveyed to a vertical grinding roller machine (5) through the second bucket elevator;
the upper end of the second bucket elevator is connected with the vertical grinding roller machine (5) through the air locking feeding machine (52); the vertical roller mill (5) is provided with a motor (53) for driving the roller mill to operate; the vertical roller mill (5) is provided with an exhaust fan (55) for blowing the powder ground in the roller mill to pass through the upper separator (51) and enter the finished product collector (6) through a pipeline; the powder in the finished product collector (6) flows into a buffer bin (7), then is finely classified by a fine classification device, and finally is packaged into bags by a packaging machine (9).
2. The calcium carbonate fine grinding control system with the improved structure according to claim 1, wherein the fine classifying device is composed of a classifier (10), a classified finished product collector (82), a finished product bin and a packaging machine (9), an inlet of the classifier (10) is connected with a buffer bin (7), a top outlet of the classifier is connected with the classified finished product collector (82), a bottom outlet of the classifier is connected with a screw conveyor (11) through a precise air-locking blanking valve (101), a discharging end of the screw conveyor (11) is connected with the bottom of a third bucket elevator, the upper part of the third bucket elevator is connected with a finished product bin two and a finished product bin three, and the classified finished product collector (82) is connected with a finished product bin one through a rigid air-locking blanking valve (81).
3. The calcium carbonate fine grinding control system with improved structure according to claim 2, wherein the finished product powder after grinding treatment by the vertical grinding roller machine (5) is conveyed to a buffer bin (7) and further conveyed to a classifier (10) for fine treatment of the finished product; the high-quality fine powder is conveyed to a classified finished product collector (82), flows into a finished product warehouse I through a rigid air locking blanking valve (81), and is packaged into bags through a packaging machine (9) below; coarse powder flows into a screw conveyor (11) through a precise air locking blanking valve (101), is conveyed by a third bucket elevator, flows into a finished product bin II and a finished product bin III, and is packaged into bags through a packaging machine (9) below.
4. A calcium carbonate fine grinding control system with improved structure according to claim 3, characterized in that the inlet of the finished product bin is provided with a second pulse bag type dust collector (83) for filtering the impurity dust in the finished product powder; a vibrator (84) is arranged on the wall of the finished product bin and is used for preventing powder from being attached in the bin; the outlet is provided with a rotary blanking device (85) for controlling the flow rate of the finished powder.
5. The improved calcium carbonate fine grinding control system according to any one of claims 1 to 4, characterized in that an iron remover (31) is also installed on the connecting pipe between the fine crushing jaw crusher (2) and the first bucket elevator (3) for adsorbing iron-containing trash in mineral aggregate.
6. The improved calcium carbonate fine grinding control system according to any one of claims 1 to 4, wherein the inlet of the raw material bin (4) is provided with a first pulse bag type dust collector (42) for filtering the impurity dust in the raw material; an outlet is provided with a bar gate (44) for controlling the flow rate of the feedstock.
7. The improved calcium carbonate fine grinding control system according to any one of claims 1 to 4, wherein the separator (51) at the top of the vertical grinding roll machine (5) is used for separating and classifying the powder materials with different particle sizes processed in the vertical grinding roll machine (5) for discharging, wherein the powder materials are discharged when the qualified size particle size requirement is met, and the powder materials are returned to the grinding roll for further grinding when the size particle size requirement is not met.
8. The improved calcium carbonate fine grinding control system according to any one of claims 1-4, wherein an air quantity adjusting valve (54) is arranged at the outlet end of the exhaust fan (55), and the air quantity and the air pressure in the grinding are mainly controlled, so that the grinding efficiency and the powder granularity quality are improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310109234.9A CN115999755A (en) | 2023-01-31 | 2023-01-31 | Calcium carbonate fine grinding control system with improved structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310109234.9A CN115999755A (en) | 2023-01-31 | 2023-01-31 | Calcium carbonate fine grinding control system with improved structure |
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| Publication Number | Publication Date |
|---|---|
| CN115999755A true CN115999755A (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310109234.9A Withdrawn CN115999755A (en) | 2023-01-31 | 2023-01-31 | Calcium carbonate fine grinding control system with improved structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117680257A (en) * | 2024-02-01 | 2024-03-12 | 晋江哈创投资有限公司 | Intelligent airflow powder crushing and grading system |
-
2023
- 2023-01-31 CN CN202310109234.9A patent/CN115999755A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117680257A (en) * | 2024-02-01 | 2024-03-12 | 晋江哈创投资有限公司 | Intelligent airflow powder crushing and grading system |
| CN117680257B (en) * | 2024-02-01 | 2024-04-26 | 晋江哈创投资有限公司 | Intelligent airflow powder crushing and grading system |
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Application publication date: 20230425 |