CN220004134U - Modified grinding device of heavy calcium carbonate powder - Google Patents

Abstract

The utility model discloses a modified grinding device for heavy calcium carbonate powder, which comprises a base, wherein a grinding box is fixedly arranged on the base, a grinding assembly is arranged on the grinding box through an adjusting assembly, a primary grinding assembly and a fine grinding assembly are arranged in the grinding box, the primary grinding assembly and the fine grinding assembly are positioned below the fine grinding assembly, and a stirring mechanism is arranged in the grinding box. According to the utility model, the gap between the reverse taper grinding cylinder and the reverse taper grinding head is adjusted through the adjusting component, when the gap between the reverse taper grinding cylinder and the reverse taper grinding head is overlarge due to abrasion between the inner wall of the reverse taper grinding cylinder and the surface of the reverse taper grinding head, the adjusting component drives the reverse taper grinding head to move downwards, so that the overlarge gap is compensated, the stirring mechanism fully mixes the heavy calcium carbonate powder and the modifier without blind spots, and the coating and modifying effects of the modifier on the heavy calcium carbonate powder are improved.

Description

Modified grinding device of heavy calcium carbonate powder

Technical Field

The utility model belongs to the technical field of heavy calcium carbonate production, and particularly relates to a modified grinding device for heavy calcium carbonate powder.

Background

Heavy calcium carbonate, called heavy calcium carbonate for short, is prepared by grinding natural carbonate minerals such as calcite, marble, and limestone. The modified calcium carbonate is a common powdery inorganic filler, has high chemical purity, large inertia, difficult chemical reaction, good thermal stability, is widely used in the fields of paint, rubber, desulfurization, plastics and the like, has strong surface hydrophilicity, is poor in affinity and compatibility with organic matters, is easy to agglomerate in a matrix material, and further forms defects on the interface of the filler and a high polymer, and needs to carry out surface coating modification on the heavy calcium carbonate by adopting a modifier.

The patent of application number CN202221858538.2 discloses a heavy calcium carbonate grinds modification equipment, including handling the case and being fixed in the lapping piece of handling the incasement, handle fixedly connected with and grind the frame in the case, the biax motor is installed to the bottom of lapping piece, the top fixedly connected with of biax motor grinds the intraductal pivoted grinding head of piece, the bottom fixedly connected with rotation axis of biax motor, the equal fixedly connected with grinding rod of both sides outer wall of rotation axis, the diapire fixedly connected with support column of the inner chamber of handling the case, the top fixedly connected with protective housing of support column, the protective housing internal rotation is connected with the (mixing) shaft, the outer wall symmetry of (mixing) shaft is equipped with a plurality of stirring rake, the delivery wagon is installed to one side outer wall of handling the case.

When the device is used, the grinding block is matched with the grinding head to crush heavy calcium carbonate, after a period of operation, abrasion is easy to occur on the surface of the grinding head and the inner wall of the grinding block, so that gaps between the surface of the grinding head and the inner wall of the grinding block become larger, the gaps cannot be compensated, further heavy calcium carbonate particles after primary grinding become larger, abrasion to the grinding rod also becomes larger, grinding efficiency becomes lower, grinding quality is affected, and further the coating modification effect of the modifier is affected.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to provide a device for modifying and grinding heavy calcium carbonate powder, which aims to solve the technical defects that the prior heavy calcium carbonate grinding and modifying equipment adopts a grinding block to match a grinding head to crush heavy calcium carbonate, the surface of the grinding head and the inner wall of the grinding block are easy to wear after a period of operation, so that the gap between the surface of the grinding head and the inner wall of the grinding block is enlarged, the gap cannot be compensated, further, the heavy calcium carbonate particles after primary grinding are enlarged, further the abrasion to a grinding rod is enlarged, the grinding efficiency is reduced, the grinding quality is influenced, and the coating and modifying effects of a modifier are influenced.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a modification grinding device of heavy calcium carbonate powder, includes the base, fixed mounting has the grinding case on the base, be provided with the rubbing crusher who is used for the garrulous crushing mechanism of heavy calcium carbonate on the grinding case through adjusting part, the inside of grinding case is provided with primary grinding subassembly and fine grinding subassembly from top to bottom respectively, is located fine grinding subassembly below, the inside of grinding case is provided with the rabbling mechanism who is used for heavy calcium carbonate powder and modifier mixing.

The crushing mechanism comprises an inverted cone grinding cylinder and an inverted cone grinding head, wherein the bottom of the inverted cone grinding cylinder is provided with an opening, the top of the grinding box is provided with a blanking port, the bottom of the inverted cone grinding cylinder is communicated with the blanking port, the inverted cone grinding head is rotationally arranged in the inverted cone grinding cylinder, the top of the inverted cone grinding head is fixedly connected with a rotating rod, and the top of the rotating rod is fixedly connected with a rotating shaft of a first motor.

The adjusting component comprises a hydraulic cylinder, a supporting plate is fixed at the top of a piston rod of the hydraulic cylinder, and the first motor is fixedly installed on the supporting plate.

As a preferable scheme of the utility model, the side surface of the inverted cone-shaped grinding cylinder is fixedly connected with a supporting frame, the bottom of the supporting frame is fixedly connected with the top of the base, and the hydraulic cylinder is fixedly arranged at the upper end of the supporting frame.

As a further scheme of the utility model, the bottom of the supporting plate is fixedly connected with a U-shaped frame, and the upper end of the rotating rod is fixedly connected with the rotating shaft of the first motor through a coupler after penetrating through the bottom of the U-shaped frame through bearing rotation.

As a further scheme of the utility model, the primary grinding assembly comprises two grinding rollers, the two grinding rollers are rotatably arranged at the upper end of the inside of the grinding box, first gears are fixedly connected to rotating shafts on one side of the two grinding rollers, the two first gears are meshed, one rotating shaft of the grinding roller is fixedly connected with a rotating shaft of a second motor, and the second motor is fixedly arranged on the outer wall of one side of the grinding box.

As a further scheme of the utility model, the fine grinding assembly comprises two fine grinding rollers, the two fine grinding rollers are rotatably arranged in the grinding box, the fine grinding rollers are positioned below the grinding rollers, a second gear is fixedly connected to one side rotating shaft of each of the two fine grinding rollers, the two second gears are meshed, a first synchronous wheel is fixedly connected to one rotating shaft of one of the grinding rollers, a second synchronous wheel is fixedly connected to one rotating shaft of the other fine grinding roller, and the first synchronous wheel and the second synchronous wheel are in transmission connection through a synchronous belt.

As a further preferable scheme of the utility model, the stirring mechanism comprises a stirring shaft, an arc-shaped collecting hopper and a third motor, wherein the third motor is fixedly arranged on the outer wall of one side of the grinding box, the arc-shaped collecting hopper is fixedly connected with the lower end of the interior of the grinding box, the arc-shaped collecting hopper is positioned below the fine grinding roller, the stirring shaft is rotationally arranged in the interior of the grinding box, one end of the stirring shaft is rotationally penetrated through one side of the grinding box and then is fixedly connected with a rotating shaft of the third motor, and one end of the stirring shaft far away from the third motor is fixedly connected with a helical blade.

As a preferable scheme of the utility model, the arc-shaped collecting hopper is obliquely arranged, the stirring shaft is parallel to the arc-shaped collecting hopper, the lower end of the grinding box is communicated with a discharging pipe, one end of the stirring shaft, which is far away from the third motor, is rotationally connected with the inside of the discharging pipe through a bearing, and a hole for a heavy calcium carbonate powder row coated with a modifier is reserved between the stirring shaft and the inside of the discharging pipe.

As a preferable scheme of the utility model, a guide plate is fixedly connected in the grinding box, and the guide plate is positioned between the fine grinding roller and the crushing roller.

Compared with the prior art, the modified grinding device for the heavy calcium carbonate powder has the following beneficial effects:

according to the utility model, the gap between the reverse taper grinding cylinder and the reverse taper grinding head is adjusted by the adjusting component, and when the gap between the reverse taper grinding cylinder and the reverse taper grinding head is overlarge due to abrasion between the inner wall of the reverse taper grinding cylinder and the surface of the reverse taper grinding head, the reverse taper grinding head is driven to move downwards by the adjusting component, so that the overlarge gap is compensated.

According to the utility model, the primary grinding component and the fine grinding component grind crushed heavy calcium carbonate fragments sufficiently in multiple stages, so that the finally obtained heavy calcium carbonate powder is fine and uniform.

According to the utility model, the stirring mechanism is used for fully and uniformly mixing the heavy calcium carbonate powder and the modifier without blind spots, so that the coating and modifying effects of the modifier on the heavy calcium carbonate powder are improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only examples of embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a first embodiment of the present utility model;

FIG. 2 is a schematic diagram of a second embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view of a polishing box according to an embodiment of the present utility model;

fig. 4 is a schematic cross-sectional view of a polishing box according to an embodiment of the utility model.

Reference numerals:

1. a base; 2. a support frame; 3. a hydraulic cylinder; 4. an inverted cone-shaped grinding cylinder; 5. an inverted cone grinding bit; 6. a support plate; 7. a first motor; 8. a U-shaped frame; 9. a grinding box; 10. a second motor; 11. a first gear; 12. a first synchronizing wheel; 13. a second gear; 14. a synchronous belt; 15. a second synchronizing wheel; 16. a third motor; 17. arc-shaped material collecting hoppers; 18. a stirring shaft; 19. a helical blade; 20. a blanking port; 21. a pulverizing roller; 22. a fine grinding roller; 23. a guide plate; 24. and a discharging pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the following detailed description of the implementation routine of the present utility model is provided with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the embodiments of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "inner", "outer", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model.

In the description of the embodiments of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, integrally connected, or detachably connected; may be a communication between the interiors of two elements; either directly or indirectly through intermediaries, the specific meaning of the terms in the embodiments of the utility model will be understood by those skilled in the art in the specific case.

Referring to fig. 1-4, a modified grinding device for heavy calcium carbonate powder according to an embodiment of the present utility model is composed of a base 1, a grinding mechanism, a grinding box 9, a primary grinding assembly, a fine grinding assembly and a stirring mechanism.

Wherein, crushing mechanism passes through adjusting part setting at the top of grinding case 9, crushing mechanism includes back taper grinding vessel 4 and back taper grinding head 5, the bottom of back taper grinding vessel 4 sets up for the opening, blanking mouth 20 has been seted up at the top of grinding case 9, the bottom of back taper grinding vessel 4 is linked together with blanking mouth 20, back taper grinding head 5 rotates the inside that sets up at back taper grinding vessel 4, back taper grinding head 5 top fixedly connected with dwang, the top of dwang and the pivot fixed connection of first motor 7, first motor 7 fixed mounting is in backup pad 6.

The adjusting part includes pneumatic cylinder 3, and the piston rod top of pneumatic cylinder 3 is fixed in the bottom of backup pad 6, in order to improve the stability of back taper grinding vessel 4, the side fixedly connected with support frame 2 of back taper grinding vessel 4, the bottom of support frame 2 and the top fixed connection of base 1, pneumatic cylinder 3 fixed mounting is in the upper end of support frame 2.

The adjusting principle of the crushing mechanism is as follows: when the grinding device is used, large-particle heavy calcium carbonate and a modifier are placed in a gap between the inverted cone grinding cylinder 4 and the inverted cone grinding head 5, the first motor 7 is started to drive the inverted cone grinding head 5 to rotate, then heavy calcium carbonate blocks between the inverted cone grinding cylinder 4 and the inverted cone grinding head 5 are crushed, and when the gap between the inverted cone grinding cylinder 4 and the inverted cone grinding head 5 is overlarge, a piston rod of the hydraulic cylinder 3 is controlled to retract for a certain distance, so that the inverted cone grinding head 5 moves downwards.

Specifically, in order to improve the stability of the inverted cone grinding bit 5 during rotation, the bottom of the support plate 6 is fixedly connected with the U-shaped frame 8, and the upper end of the rotating rod is fixedly connected with the rotating shaft of the first motor 7 through a coupler after penetrating through the bottom of the U-shaped frame 8 through bearing rotation.

Referring to fig. 2-4, the primary grinding assembly comprises two grinding rollers 21, the two grinding rollers 21 are rotatably arranged at the upper end of the interior of the grinding box 9, a first gear 11 is fixedly connected to one side of the rotating shaft of the two grinding rollers 21, the two first gears 11 are meshed, the rotating shaft of one grinding roller 21 is fixedly connected with the rotating shaft of the second motor 10, and the second motor 10 is fixedly arranged on the outer wall of one side of the grinding box 9.

The fine grinding assembly comprises two fine grinding rollers 22, the two fine grinding rollers 22 are rotatably arranged in the grinding box 9, the fine grinding rollers 22 are located below the grinding rollers 21, one side rotating shafts of the two fine grinding rollers 22 are fixedly connected with second gears 13, the two second gears 13 are meshed, one rotating shaft of the grinding rollers 21 is fixedly connected with a first synchronizing wheel 12, one rotating shaft of the fine grinding rollers 22 is fixedly connected with a second synchronizing wheel 15, and the first synchronizing wheel 12 is in transmission connection with the second synchronizing wheel 15 through a synchronous belt 14.

Heavy calcium carbonate fragments after crushing by the crushing mechanism fall into between two crushing rollers 21 in the grinding box 9, the second motor 10 is started to cooperate with two meshed first gears 11, so that the two crushing rollers 21 rotate to perform preliminary grinding on the heavy calcium carbonate fragments, and the two fine grinding rollers 22 perform secondary grinding on the heavy calcium carbonate powder subjected to preliminary grinding by cooperating with two meshed second gears 13 through the arranged first synchronizing wheels 12, second synchronizing wheels 15 and synchronizing belts 14.

The inside fixedly connected with deflector 23 of grinding case 9, deflector 23 are located between fine grinding roller 22 and the crushing roller 21, through the deflector 23 that sets up, can make the heavy calcium carbonate powder that grinds through crushing roller 21 fall into between two fine grinding rollers 22, avoid appearing directly dropping the phenomenon emergence of the interior bottom of grinding case 9, guarantee the grinding quality.

The stirring mechanism comprises a stirring shaft 18, an arc-shaped collecting hopper 17 and a third motor 16, wherein the third motor 16 is fixedly arranged on the outer wall of one side of the grinding box 9, the arc-shaped collecting hopper 17 is fixedly connected to the lower end of the inside of the grinding box 9, the arc-shaped collecting hopper 17 is positioned below the fine grinding roller 22, the stirring shaft 18 is rotatably arranged in the grinding box 9, one end of the stirring shaft 18 is rotatably connected with a rotating shaft fixedly connected with the third motor 16 after penetrating through one side of the grinding box 9, one end of the stirring shaft 18, which is far away from the third motor 16, is fixedly connected with a helical blade 19, the arc-shaped collecting hopper 17 is obliquely arranged, the stirring shaft 18 is parallel to the arc-shaped collecting hopper 17, the lower end of the grinding box 9 is communicated with a discharging pipe 24, one end of the stirring shaft 18, which is far away from the third motor 16, is rotatably connected to the inside of the discharging pipe 24 through a bearing, and a hole for a heavy calcium carbonate powder row coated with a modifier is reserved between the stirring shaft 18 and the inside the discharging pipe 24.

When modifier and heavy calcium carbonate powder pass through multistage grinding, preliminary mixing has been carried out, modifier and heavy calcium carbonate powder after multistage grinding fall to arc collecting hopper 17 inside, start third motor 16, make third motor 16 drive (mixing) shaft 18 and helical blade 19 and rotate, and then promote the heavy calcium carbonate powder that is located arc collecting hopper 17 lower extreme to the upper end of arc collecting hopper 17, because arc collecting hopper 17 is the slope setting, and then under the effect of gravity, the heavy calcium carbonate powder that gathers in arc collecting hopper 17 upper end falls to the bottom of arc collecting hopper 17 again, so the circulation, make modifier and heavy calcium carbonate powder can carry out abundant no blind spot's stirring, after the stirring, control third motor 16 drive (mixing) shaft 18 and helical blade 19 and carry out reverse rotation, and then release heavy calcium carbonate powder from discharging pipe 24, accomplish the ejection of compact operation.

To sum up:

the clearance between the back taper grinding cylinder 4 and the back taper grinding head 5 can be adjusted by the adjusting component, when the clearance between the back taper grinding cylinder 4 and the back taper grinding head 5 is overlarge due to abrasion between the inner wall of the back taper grinding cylinder 4 and the surface of the back taper grinding head 5, the back taper grinding head 5 can be driven to move downwards through the adjusting component, and then the overlarge clearance is compensated.

The primary grinding component and the fine grinding component can grind crushed heavy calcium carbonate fragments in multiple levels and fully, so that the finally obtained heavy calcium carbonate powder is fine and uniform.

The stirring mechanism can fully and evenly mix the heavy calcium carbonate powder and the modifier without blind spots, and improves the coating modification effect of the modifier on the heavy calcium carbonate powder.

While the basic principles of the present utility model have been shown and described, the foregoing is provided by way of illustration of a preferred embodiment of the utility model, and not by way of limitation, the foregoing embodiment and description are merely illustrative of the principles of the utility model, and any modifications, equivalents, improvements or modifications not within the spirit and scope of the utility model should be included within the scope of the utility model.

Claims (8)

1. The utility model provides a modification grinding device of heavy calcium carbonate powder, includes base (1), fixed mounting has grinding case (9), its characterized in that on base (1): the grinding box (9) is provided with a crushing mechanism for crushing the heavy calcium carbonate through an adjusting component, a primary grinding component and a fine grinding component are respectively arranged in the grinding box (9) from top to bottom and are positioned below the fine grinding component, and a stirring mechanism for uniformly mixing the heavy calcium carbonate powder with a modifier is arranged in the grinding box (9);

the crushing mechanism comprises an inverted cone grinding cylinder (4) and an inverted cone grinding head (5), wherein the bottom of the inverted cone grinding cylinder (4) is provided with an opening, the top of the grinding box (9) is provided with a blanking port (20), the bottom of the inverted cone grinding cylinder (4) is communicated with the blanking port (20), the inverted cone grinding head (5) is rotatably arranged in the inverted cone grinding cylinder (4), the top of the inverted cone grinding head (5) is fixedly connected with a rotating rod, and the top of the rotating rod is fixedly connected with a rotating shaft of a first motor (7);

the adjusting assembly comprises a hydraulic cylinder (3), a supporting plate (6) is fixed at the top of a piston rod of the hydraulic cylinder (3), and a first motor (7) is fixedly installed on the supporting plate (6).

2. The modified grinding device for heavy calcium carbonate powder according to claim 1, wherein: the side fixedly connected with support frame (2) of back taper grinding vessel (4), the bottom of support frame (2) with the top fixed connection of base (1), pneumatic cylinder (3) fixed mounting is in the upper end of support frame (2).

3. The modified grinding device for heavy calcium carbonate powder according to claim 2, wherein: the bottom of backup pad (6) fixedly connected with U-shaped frame (8), the upper end of dwang pass through behind the bottom of bearing rotation U-shaped frame (8) with the pivot of first motor (7) passes through shaft coupling fixed connection.

4. A modified grinding device for heavy calcium carbonate powder according to claim 3, characterized in that: the primary grinding assembly comprises two grinding rollers (21), wherein the two grinding rollers (21) are rotatably arranged at the upper end of the inside of the grinding box (9), the two grinding rollers (21) are fixedly connected with first gears (11) on one side of a rotating shaft, the two grinding rollers are meshed with the first gears (11), one grinding roller (21) is fixedly connected with a rotating shaft of a second motor (10), and the second motor (10) is fixedly arranged on the outer wall of one side of the grinding box (9).

5. The modified grinding device for heavy calcium carbonate powder according to claim 4, wherein: the fine grinding assembly comprises two fine grinding rollers (22), the two fine grinding rollers (22) are rotatably arranged in the grinding box (9), the fine grinding rollers (22) are located below the grinding rollers (21), two second gears (13) are fixedly connected to one side rotating shafts of the fine grinding rollers (22), the two second gears (13) are meshed, one of the second gears is fixedly connected with a first synchronous wheel (12) in the rotating shaft of the grinding rollers (21), one of the second synchronous wheels (15) is fixedly connected to the rotating shaft of the fine grinding rollers (22), and the first synchronous wheel (12) is connected with the second synchronous wheel (15) in a transmission mode through a synchronous belt (14).

6. The modified grinding device for heavy calcium carbonate powder according to claim 5, wherein: the stirring mechanism comprises a stirring shaft (18), an arc-shaped collecting hopper (17) and a third motor (16), wherein the third motor (16) is fixedly installed on the outer wall of one side of the grinding box (9), the arc-shaped collecting hopper (17) is fixedly connected with the lower end of the inside of the grinding box (9), the arc-shaped collecting hopper (17) is located below the fine grinding roller (22), the stirring shaft (18) is rotationally arranged inside the grinding box (9), one end of the stirring shaft (18) rotationally penetrates through one side of the grinding box (9) and then is fixedly connected with a rotating shaft of the third motor (16), and one end of the stirring shaft (18) away from the third motor (16) is fixedly connected with a helical blade (19).

7. The modified grinding device for heavy calcium carbonate powder according to claim 6, wherein: the utility model discloses a grinding box, including grinding box, stirring axle, third motor (16), stirring axle (18), arc collecting hopper (17) slope setting, (18) with arc collecting hopper (17) parallel arrangement, the lower extreme intercommunication of grinding box (9) has discharging pipe (24), stirring axle (18) are kept away from one end of third motor (16) is rotated through the bearing and is connected the inside of discharging pipe (24), stirring axle (18) with leave the hole that supplies the cladding to have the heavy calcium carbonate powder row of modifier between discharging pipe (24) inside.

8. The modified grinding device for heavy calcium carbonate powder according to claim 5, wherein: the inside fixedly connected with deflector (23) of grinding case (9), deflector (23) are located fine grinding roller (22) with smash between roller (21).