CN214974695U

CN214974695U - Grinder is used in calcium carbonate production

Info

Publication number: CN214974695U
Application number: CN202121462575.7U
Authority: CN
Inventors: 宗永波
Original assignee: Changzhou Calcium Carbonate Co
Current assignee: Changzhou Calcium Carbonate Co
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2021-12-03
Anticipated expiration: 2031-06-29

Abstract

The utility model relates to a grinder is used in calcium carbonate production, including grinding the main part, from top to bottom is equipped with first grinding chamber and second grinding chamber in proper order in the grinding main part, first grinding chamber top intercommunication is provided with the feeder hopper, second grinding chamber below intercommunication is provided with out the hopper, first grinding chamber and second grinding chamber bottom are equipped with first screen cloth and second screen cloth respectively, first grinding intracavity is equipped with the first grinding subassembly of going on grinding on first screen cloth, first grinding subassembly is including rotationally the main shaft and connect first puddler and the first grinding roller in the main shaft both sides respectively, the second is ground the intracavity and is equipped with second grinding subassembly, second grinding subassembly includes at least one second grinding roller, be equipped with on the inside wall in second grinding chamber and grind roller matched with piece with the second. The utility model discloses a predominant use provides a two grinding chamber combined work, grinds the high efficiency, and the powder after the grinding is meticulous even, and the grinder is used in calcium carbonate production that finished product quality is good.

Description

Grinder is used in calcium carbonate production

Technical Field

The utility model relates to a grinding device especially relates to a grinder is used in calcium carbonate production.

Background

Calcium carbonate is an inorganic compound, commonly known as limestone, stone powder, marble and the like, is neutral, is basically insoluble in water, is soluble in hydrochloric acid, is one of common substances on earth, exists in rocks such as aragonite, calcite, chalk, limestone, marble, travertine and the like, is also a main component of animal bones or shells, is also an important building material, and has wide industrial application.

Need use the milling machine in the course of working of calcium carbonate, but current milling machine generally only has a grinding chamber, and work efficiency is lower, when the calcium carbonate volume that will grind is bigger, need many milling machines simultaneous workings, the extravagant energy, and current milling machine just gets into next process after grinding the intracavity once with calcium carbonate, can't guarantee the grinding effect, the calcium carbonate powder thickness that makes the processing out is inhomogeneous, directly influences the quality of product, has reduced the practicality of milling machine.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, the utility model aims to provide a design benefit, two grinding chamber joint work grind the high efficiency, and the powder after the grinding is meticulous even, the high-quality grinder is used in calcium carbonate production of finished product.

In order to solve the above problem, the utility model discloses the technical scheme who adopts as follows:

the utility model provides a grinder is used in calcium carbonate production, is including grinding the main part, from top to bottom is equipped with first grinding chamber and second grinding chamber in proper order in the grinding main part, first grinding chamber top intercommunication is provided with the feeder hopper, second grinding chamber below intercommunication is provided with out the hopper, first grinding chamber and second grinding chamber bottom are equipped with first screen cloth and second screen cloth respectively, first grinding intracavity is equipped with the first grinding subassembly of going on grinding on first screen cloth, first grinding subassembly is including rotationally the main shaft and connect first puddler and the first grinding roller in the main shaft both sides respectively, the second is ground the intracavity and is equipped with second grinding subassembly, second grinding subassembly includes at least one second grinding roller, be equipped with on the inside wall in second grinding chamber and grind roller matched with piece with the second.

Further, the first screen is a vibrating screen, and the vibrating screen is in transmission connection with a vibrating motor.

Further, the grinding device further comprises a screw conveyor, the second screen is obliquely arranged, the lower side of the second screen is communicated with an inlet of the screw conveyor, an outlet of the screw conveyor is communicated with the upper part of the second grinding cavity, and an outlet of the screw conveyor is positioned above the second grinding roller.

Further, the downside top of two screens is equipped with rotationally second puddler, the one end and the agitator motor transmission of second puddler are connected, be equipped with a plurality of stirring piece on the second puddler, a plurality of stirring piece distributes along two spirals on the axial direction of second puddler.

Further, the first grinding roller can be connected with the main shaft in a self-rotating mode, and the gap between the first grinding roller and the first screen is gradually reduced from inside to outside.

Furthermore, a plurality of stirring columns are uniformly distributed on the first stirring rod at intervals, and the gap between each stirring column and the first screen is 5-8 mm.

Further, the tip of first puddler sets firmly the scraper blade of vertical distribution, the lateral surface of scraper blade contacts with the lateral wall in first grinding chamber.

Further, the inclination angle of the second screen is 30-45 degrees.

Furthermore, a material collecting box with an opening at the upper end is arranged below the discharge hopper.

Furthermore, one end of the main shaft extends out of the grinding main body and is in transmission connection with a driving motor.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model structurally improves the existing calcium carbonate grinding equipment, divides the grinding process into two-stage grinding, and sets a stirring device to stir the materials, thereby improving the grinding uniformity and the screening efficiency; in addition, the spiral conveyor is arranged to convey the calcium carbonate particles which do not meet the requirements to the grinding cavity again for grinding, so that the grinding automation and the grinding efficiency are greatly improved.

Drawings

FIG. 1 is a schematic structural view of a grinding apparatus for calcium carbonate production according to the present invention;

wherein, 1, grinding the main body; 11. a feed hopper; 12. a first grinding chamber; 13. a second grinding chamber; 14. a first screen; 15. a second screen; 16. a discharge hopper; 2. a first stirring rod; 21. a squeegee; 22. a stirring column; 3. a main shaft; 31. a drive motor; 4. a first grinding roller; 5. a second grinding roller; 6. a second stirring rod; 7. a screw conveyor; 8. a material collecting box; 9. and (6) matching the blocks.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

It should be noted that, in the description of the technical solutions of the present invention, some directional words, such as "front", "rear", "upper", "lower", "top", "bottom", "inner", "outer", etc., used for clearly describing the technical features of the present invention are all in terms of the orientation of the drawings of the present invention.

Examples

As shown in fig. 1, the grinding device for calcium carbonate production of this embodiment, including grinding main body 1, grinding main body 1 is interior from top to bottom to be equipped with first grinding chamber 12 and second grinding chamber 13 in proper order, first grinding chamber 12 top intercommunication is provided with feeder hopper 11, big granule calcium carbonate that does not grind gets into grinding main body 1 inside from feeder hopper 11, second grinding chamber 13 below intercommunication is provided with out hopper 16, it is open-ended collection box 8 to go out hopper 16 below to be equipped with the upper end, hopper 16 department sets up the valve in this embodiment, open the valve when needing the ejection of compact, calcium carbonate after the grinding leaves grinding main body 1 and goes into collection box 8 from going out hopper 16 and collects, collection box 8 collects after full, close the valve, take out collection box 8 and more renew collection box 8. First grinding chamber 12 and second grinding chamber 13 bottom are equipped with first screen cloth 14 and second screen cloth 15 respectively, and evenly distributed has a plurality of sieve mesh on first screen cloth 14 and the second screen cloth 15, and the sieve mesh aperture of first screen cloth 14 is greater than the sieve mesh aperture of second screen cloth 15, and first screen cloth 14 is the shale shaker, and this shale shaker is connected with the vibrating motor transmission. The adoption of the vibrating screen can improve the screening efficiency and avoid the materials meeting the requirements from continuously accumulating on the first screen 14. The first grinding chamber 12 is internally provided with a first grinding assembly for grinding on the first screen 14, the first grinding assembly comprises a rotatable main shaft 3, and a first stirring rod 2 and a first grinding roller 4 which are respectively connected to two sides of the main shaft 3, and one end of the main shaft 3 extends out of the grinding main body 1 and is in transmission connection with a driving motor 31. The driving motor 31 controls the main shaft 3 to rotate so as to drive the first stirring rod 2 and the first grinding roller 4 to rotate around the main shaft 3. The second is ground and is equipped with second grinding assembly in the chamber 13, and second grinding assembly includes at least one second and grinds roller 5, is equipped with on the inside wall of second grinding chamber 13 and grinds roller 5 matched with cooperation piece 9 with the second, specifically in this embodiment, has two relative pivoted second and grinds roller 5 for carry out the second grade to the material and grind.

Specifically, the first grinding roll 4 is rotatably connected to the main shaft 3, and the first grinding roll 4 rotates while rotating about the main shaft 3, so that calcium carbonate on the first mesh 14 is more effectively ground and the heat generated by friction is reduced. The clearance between first grinding roller 4 and the first screen cloth 14 reduces by interior to outer gradually, and first grinding roller 4 is frustum shape structure promptly, and the one end that is close to main shaft 3 is the tip, and the one end of keeping away from main shaft 3 is the main aspects, adopts this kind of structure, and the one end that the clearance is big is convenient to be ground large granule calcium carbonate, grinds to remove to the one end that the clearance is little gradually behind the tiny particle for grind more smoothly high-efficient. A plurality of stirring columns 22 are uniformly distributed on the first stirring rod 2 at intervals, the stirring columns 22 are of cylindrical structures, the included angle between each stirring column 22 and the vertical direction is 0-30 degrees, particularly, the included angle between each stirring column 22 and the vertical direction is preferably 30 degrees in the embodiment, so that the friction resistance between the stirring columns and calcium carbonate to be ground during movement can be reduced, and further the abrasion is reduced. The gap between each stirring rod 22 and the first screen 14 is 5-8 mm. Within this range, the stirring column 22 serves both to stir the calcium carbonate to be ground and to avoid collision with the vibrating screen. When the main shaft 3 rotates, the first stirring rod 2 rotates along with the main shaft, and the stirring columns 22 move and stir in the calcium carbonate to be ground, so that the grinding efficiency is improved, and the grinding is more uniform and sufficient. The tip of first puddler 2 sets firmly the scraper blade 21 of vertical distribution, and the lateral surface of scraper blade 21 contacts with the lateral wall of first grinding chamber 12 for pile up when will grinding and wait to grind calcium carbonate on first grinding chamber 12 edge and the lateral wall and scrape down, improve the efficiency of grinding. The primary grinding is carried out by adopting the grinding structure, the calcium carbonate particles with the granularity meeting the requirement after grinding fall from the sieve pores of the first sieve 14 to enter the second grinding cavity 13, the calcium carbonate particles with the granularity not meeting the requirement are left on the first sieve 14 to be continuously ground by the first grinding roller 4,

the present embodiment further comprises a screw conveyor 7, the second screen 15 is arranged obliquely, and specifically, the angle of inclination of the second screen 15 is 30-45 degrees. The lower side of the second screen 15 communicates with the inlet of the screw conveyor 7, the outlet of the screw conveyor 7 communicates with the upper part of the second grinding chamber 13, and the outlet of the screw conveyor 7 is located above the second grinding rollers 5. The calcium carbonate particles with the required granularity fall from the sieve holes of the second sieve 15 and enter the collection box 8 through the discharge hopper 16, the calcium carbonate particles with the unsatisfactory granularity remain on the second sieve 15 and move downwards along the slope until entering the screw conveyor 7 from the inlet of the screw conveyor 7, the screw conveyor 7 conveys the part of the material to the upper part of the second grinding roller 5 and outputs the part of the material from the outlet to reenter the second grinding cavity 13 for grinding again, and the operation is repeated in this way until all the calcium carbonate particles meet the requirement and enter the collection box 8.

In addition, a rotatable second stirring rod 6 is arranged above the lower side of the second screen 15 in the embodiment, one end of the second stirring rod 6 is in transmission connection with a stirring motor, the stirring motor is used for controlling the second stirring rod 6 to rotate, and the rotation direction is clockwise as shown in fig. 1; be equipped with a plurality of stirring piece on second puddler 6, a plurality of stirring piece distributes along two spirals on second puddler 6's axial direction, sets up second puddler 6 and can will remove the calcium carbonate granule intensive mixing to second screen cloth 15 downside through the slope, not only can improve screening efficiency, can also accelerate the speed that the calcium carbonate granule that does not satisfy the requirement gets into auger delivery ware 7, prevents that the material from piling up.

The grinding device for calcium carbonate production of the utility model is structurally improved on the basis of the existing calcium carbonate grinding equipment, the grinding process is divided into two-stage grinding, and the stirring device is arranged to stir the materials, so that the grinding uniformity is improved and the screening efficiency is improved; in addition, the screw conveyor 7 is arranged to convey the calcium carbonate particles which do not meet the requirements to the grinding cavity again for grinding, so that the grinding automation and the grinding efficiency are greatly improved.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.

Claims

1. The utility model provides a grinder is used in calcium carbonate production which characterized in that: comprises a grinding main body (1), a first grinding cavity (12) and a second grinding cavity (13) are sequentially arranged in the grinding main body (1) from top to bottom, a feed hopper (11) is communicated with the top of the first grinding cavity (12), a discharge hopper (16) is communicated with the lower part of the second grinding cavity (13), a first screen (14) and a second screen (15) are respectively arranged at the bottoms of the first grinding cavity (12) and the second grinding cavity (13), a first grinding component for grinding on the first screen (14) is arranged in the first grinding cavity (12), the first grinding component comprises a rotatable main shaft (3) and a first stirring rod (2) and a first grinding roller (4) which are respectively connected with the two sides of the main shaft (3), a second grinding component is arranged in the second grinding cavity (13), and the second grinding component comprises at least one second grinding roller (5), and a matching block (9) matched with the second grinding roller (5) is arranged on the inner side wall of the second grinding cavity (13).

2. The grinding device for calcium carbonate production according to claim 1, characterized in that: the first screen (14) is a vibrating screen, and the vibrating screen is in transmission connection with a vibrating motor.

3. The grinding device for calcium carbonate production according to claim 1, characterized in that: the grinding device is characterized by further comprising a screw conveyor (7), the second screen (15) is obliquely arranged, the lower side of the second screen (15) is communicated with an inlet of the screw conveyor (7), an outlet of the screw conveyor (7) is communicated with the upper portion of the second grinding cavity (13), and an outlet of the screw conveyor (7) is located above the second grinding roller (5).

4. The grinding device for calcium carbonate production according to claim 3, characterized in that: the downside top of two screen cloth (15) is equipped with rotationally second puddler (6), the one end and the agitator motor transmission of second puddler (6) are connected, be equipped with a plurality of stirring piece on second puddler (6), a plurality of stirring piece distributes along two spirals in the axial direction of second puddler (6).

5. The grinding device for calcium carbonate production according to claim 1, characterized in that: the first grinding roller (4) is connected with the main shaft (3) in a rotating mode, and a gap between the first grinding roller (4) and the first screen (14) is gradually reduced from inside to outside.

6. The grinding device for calcium carbonate production according to claim 5, characterized in that: a plurality of stirring columns (22) are uniformly distributed on the first stirring rod (2) at intervals, and the gap between each stirring column (22) and the first screen (14) is 5-8 mm.

7. The grinding device for calcium carbonate production according to claim 6, characterized in that: the tip of first puddler (2) sets firmly scraper blade (21) of vertical distribution, the lateral surface of scraper blade (21) contacts with the lateral wall of first grinding chamber (12).

8. The grinding device for calcium carbonate production according to claim 3, characterized in that: the inclination angle of the second screen (15) is 30-45 degrees.

9. The grinding device for calcium carbonate production according to claim 1, characterized in that: a material collecting box (8) with an opening at the upper end is arranged below the discharge hopper (16).

10. The grinding device for calcium carbonate production according to claim 1, characterized in that: one end of the main shaft (3) extends out of the grinding main body (1) and is in transmission connection with a driving motor (31).