CN116174136A

CN116174136A - Quantitative feeding grinding equipment and method for processing barite powder

Info

Publication number: CN116174136A
Application number: CN202310484766.0A
Authority: CN
Inventors: 余刚
Original assignee: Tangshan Youxing Drilling Mud Additives Co ltd
Current assignee: Tangshan Youxing Drilling Mud Additives Co ltd
Priority date: 2023-05-04
Filing date: 2023-05-04
Publication date: 2023-05-30
Anticipated expiration: 2043-05-04
Also published as: CN116174136B

Abstract

The invention relates to the technical field of processing of barite powder, in particular to quantitative feeding grinding equipment and a quantitative feeding grinding method for processing of barite powder, wherein the quantitative feeding grinding equipment comprises a grinding cylinder, a feeding unit and a grinding unit; the invention can solve the following problems of the existing barite powder processing equipment: the feeding amount of the barite cannot be controlled, and the accumulation of the barite is easy to cause, so that the normal crushing and grinding of the barite are affected; the meshes cannot be dredged, so that blockage is easy to occur, and normal discharging of barite particles is influenced; according to the invention, the feeding amount of the barite particles is controlled by controlling the inclination angle of the baffle plate, so that the barite particles are prevented from being accumulated to influence the normal grinding; the invention carries out multistage grinding treatment on the barite particles through the annular seat and the grinding column, and can blow up the barite particles at the mesh holes of the bearing mesh plate in a blowing mode, thereby preventing the barite particles from blocking the bearing mesh plate and affecting the discharging of the bearing mesh plate.

Description

Quantitative feeding grinding equipment and method for processing barite powder

Technical Field

The invention relates to the technical field of processing of barite powder, in particular to quantitative feeding grinding equipment and method for processing of barite powder.

Background

The barite is usually thick plate-shaped or columnar crystal, is mostly compact block-shaped or plate-shaped or granular aggregate, is colorless and transparent when pure, is dyed into various colors when containing impurities, has white streak and glass luster, is transparent to semitransparent, and is required to be crushed by a jaw crusher in the process of processing the barite into powder, and then is quantitatively put into a grinder for full grading grinding.

The prior art provides technical solutions for processing barite powder, such as: the utility model discloses a novel barite powder processing equipment of chinese patent publication No. CN217431889U, it firstly puts into crushing frame with the spar, then rotates the spar through two sets of crushing rollers and smashes the processing, and the spar that falls to its inboard is smashed in friction through two sets of friction plates back and forth slip, then drives the clamp plate through the pendulum rod and beats the spar on the inner bottom wall of the processing case and roll, further smashes the processing to the spar, and then carries out filtration treatment and separation collection to the spar through first filter and second filter.

However, the above patent also has the following problems: 1. the above-mentioned patent is poured into the barite and is smashed the batch volume when being unable to control in the frame, if the barite batch volume is too big, causes the piling up of barite easily to can't fully grind piled up barite, and then influence the normal crushing and the grinding of barite.

2. Above-mentioned patent is to the separation of crystal powder and is collected the time, filters the barite granule through first filter and second filter, and above-mentioned patent can't dredge the mesh of first filter and second filter, causes the jam of first filter and second filter mesh easily, and then influences the normal ejection of compact of barite granule.

Disclosure of Invention

In order to solve the problems, the invention provides quantitative feeding grinding equipment for processing barite powder, which comprises a grinding cylinder, a feeding unit and a grinding unit, wherein a feed inlet is formed in the upper end of the grinding cylinder, the feeding unit is arranged above the grinding cylinder, and the grinding unit is arranged inside the grinding cylinder.

The feeding unit comprises a supporting cylinder, the upper end of the grinding cylinder is provided with the supporting cylinder, the supporting cylinder is penetrated and provided with a feeding cylinder, the lower end of the feeding cylinder is positioned above the feeding port, the feeding cylinder is rotationally connected with a rotating rod which is vertically arranged with the axis of the feeding cylinder, the right end of the rotating rod penetrates through the supporting cylinder, the outer wall of the rotating rod is provided with a fixed sleeve which is positioned in the feeding cylinder, the outer wall of the fixed sleeve is symmetrically provided with two baffle plates relative to the axis of the fixed sleeve, and a limiting assembly is arranged between the rotating rod and the feeding cylinder.

The grinding unit comprises a driving motor, the lower end of a grinding cylinder is provided with the driving motor through a motor base, a positioning shaft is installed on an output shaft of the driving motor, a shaft sleeve is sleeved on the upper side of the positioning shaft, a plurality of linkage rods are evenly installed on the outer wall circumference of the shaft sleeve, an annular positioning frame is installed on the inner wall of the grinding cylinder, an annular groove connected with the end of the linkage rod in a rotating mode is formed in the inner wall of the annular positioning frame, a supporting mesh plate which is rotatably sleeved on the outer wall of the positioning shaft is installed at the lower end of the annular positioning frame, a plurality of annular seats which are staggered with meshes of the supporting mesh plate are arranged at the upper end of the supporting mesh plate, a plurality of grinding columns are installed at the lower end of the linkage rod at equal intervals along the length direction of the linkage rod, and a discharging component is arranged at the bottom of the grinding cylinder.

As a preferable technical scheme of the invention, the discharging component comprises mounting rods, the lower end of the grinding cylinder is provided with an air storage chamber through two mounting rods symmetrically arranged about the axis of the grinding cylinder, the lower end of the air storage chamber is provided with an air pump, the inner bottom wall of the grinding cylinder is circumferentially and uniformly provided with a plurality of air discharge cylinders, the outer wall of the air storage chamber is circumferentially and uniformly provided with a plurality of connecting pipes communicated with the air discharge cylinders, and one end of each connecting pipe, which is far away from the air storage chamber, is communicated with the air discharge cylinders.

As a preferable technical scheme of the invention, the limiting component comprises a locating seat, a plurality of locating seats are uniformly arranged on the outer wall of the rotating rod and positioned on the right side of the feeding barrel in the circumferential direction, a connecting rod is hinged to one side of the locating seat far away from the rotating rod through a torsion spring, a limiting ball is arranged on one side of the connecting rod far away from the locating seat, an annular frame is arranged on the right side wall of the feeding barrel, and a plurality of limiting grooves which are in sliding conflict with the limiting ball are uniformly arranged on the right end of the annular frame in the circumferential direction.

As a preferable technical scheme of the invention, the outer wall of the exhaust funnel is circumferentially uniform and is provided with a plurality of air outlet holes in a penetrating way from top to bottom at equal intervals, the outer wall of each air outlet hole is provided with a dust cover, and the diameter of one side of the dust cover far away from the axis of the exhaust funnel is gradually reduced.

As a preferable technical scheme of the invention, the longitudinal section of the annular seat is of a semicircular structure, the lower end of the grinding column is of a hemispherical structure, and the lower end of the grinding column is positioned between two adjacent annular seats and is in sliding contact with the annular seats.

As a preferable technical scheme of the invention, a plurality of discharge holes are uniformly formed in the circumferential direction of the outer wall of the bottom of the grinding cylinder, one side, far away from the axis of the grinding cylinder, of the discharge holes is gradually inclined downwards, and a guide cylinder is arranged on the outer wall of the discharge hole.

As a preferable technical scheme of the invention, the pointer is arranged on the outer wall of the right side of the rotating rod, and a plurality of scales matched with the pointer are uniformly arranged on the right side wall of the supporting cylinder along the circumferential direction of the rotating rod.

As a preferable technical scheme of the invention, the cross section of the material baffle plate is of a semicircular structure, and the two material baffle plates can form a circular structure which is attached to the inner wall of the feeding cylinder.

In addition, the invention provides a quantitative feeding grinding method for processing the barite powder, which comprises the following steps:

the first step: barite feeding: firstly, pouring crushed barite particles into a feeding unit, and realizing quantitative feeding of the barite particles through the feeding unit;

and a second step of: grinding barite: grinding the barite particles by grinding;

and a third step of: discharging the barite powder: the barite powder is discharged and collected by a grinding unit.

The invention has the beneficial effects that: 1. according to the feeding unit provided by the invention, the baffle plate is driven to rotate through the rotating rod, so that gaps exist between the baffle plate and the inner wall of the feeding cylinder, and the barite particles are blanked into the grinding cylinder through the gaps.

2. According to the grinding unit provided by the invention, the barite particles are ground into the barite powder through the multistage grinding treatment of the grinding column which moves relative to the annular seat, and in the process, the barite particles at the positions of the meshes of the supporting mesh plate can be blown up by air blown out through the exhaust pipe, so that the barite particles are prevented from blocking the supporting mesh plate to influence the discharging of the barite powder.

3. According to the limiting assembly, the limiting ball is abutted against the inside of the limiting groove, so that the rotating rod can be limited, the rotating rod cannot rotate at will under the action of no external force, and the feeding amount of barite particles can be controlled.

4. According to the discharging component provided by the invention, the air blown out by the exhaust barrel can lift the barite powder at the bottom of the grinding barrel and discharge the barite powder to the outside of the grinding barrel through the discharging hole and the guide barrel, so that the discharging efficiency of the barite powder can be improved.

Drawings

The invention will be further described with reference to the drawings and examples.

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a cross-sectional view (from front to back) of the present invention.

Fig. 3 is a partial cutaway view of a dosing unit of the present invention.

Fig. 4 is an enlarged view of a portion of fig. 3 a of the present invention.

Fig. 5 is an operational view of the striker plate of the present invention.

Fig. 6 is a partial enlarged view at B of fig. 5 of the present invention.

Fig. 7 is a partial cutaway view of the grinding unit of the invention.

Fig. 8 is a partial enlarged view at C of fig. 7 of the present invention.

Fig. 9 is a partial cutaway view of the outfeed assembly of the present invention.

Fig. 10 is a partial cutaway view of the vent of the present invention.

In the figure: 1. a grinding cylinder; 11. a discharge port; 12. a guide cylinder; 2. a feeding unit; 21. a support cylinder; 22. a charging barrel; 23. a rotating rod; 231. a pointer; 232. a scale; 24. a fixed sleeve; 25. a striker plate; 26. a limit component; 261. a positioning seat; 262. a connecting rod; 263. a limit ball; 264. an annular frame; 3. a grinding unit; 31. a driving motor; 32. positioning a shaft; 33. a shaft sleeve; 34. a linkage rod; 35. an annular positioning frame; 36. supporting the mesh plate; 37. an annular seat; 38. grinding the column; 39. a discharge assembly; 391. a mounting rod; 392. an air storage chamber; 393. an air pump; 394. an exhaust pipe; 395. a connecting pipe; 396. an air outlet hole; 397. a dust cover.

Detailed Description

The invention is further described with reference to the following detailed drawings in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the invention easy to understand. It should be noted that, without conflict, the embodiments and features of the embodiments in the present application may be combined with each other.

Referring to fig. 1 and 2, a quantitative feeding grinding device for processing barite powder comprises a grinding cylinder 1, a feeding unit 2 and a grinding unit 3, wherein a feed inlet is formed in the upper end of the grinding cylinder 1, the feeding unit 2 is arranged above the grinding cylinder 1, and the grinding unit 3 is arranged inside the grinding cylinder 1; a plurality of discharge ports 11 have evenly been seted up to grinding vessel 1 bottom outer wall circumference, and one side that grinding vessel 1 axis was kept away from to discharge port 11 is gradually downward sloping, and guide cylinder 12 is installed to the discharge port 11 outer wall, is convenient for discharge the heavy crystal powder that the grinding was accomplished through discharge port 11 to discharge heavy crystal powder to grinding vessel 1 outside through guide cylinder 12.

Referring to fig. 2, fig. 3, fig. 4 and fig. 5, the feeding unit 2 comprises a supporting cylinder 21, the upper end of the grinding cylinder 1 is provided with the supporting cylinder 21, the supporting cylinder 21 is provided with a feeding cylinder 22 in a penetrating manner, the lower end of the feeding cylinder 22 is positioned above a feeding port, the feeding cylinder 22 is rotationally connected with a rotating rod 23 which is vertically arranged with the axis of the feeding cylinder 22, the right end of the rotating rod 23 passes through the supporting cylinder 21, the right outer wall of the rotating rod 23 is provided with a plurality of scales 232 which are matched with the pointers 231, the right side wall of the supporting cylinder 21 is uniformly provided with a plurality of positioning seats 261 along the circumferential direction of the rotating rod 23, the outer wall of the rotating rod 23 is fixedly sleeved with a fixed sleeve 24, the outer wall of the fixed sleeve 24 is symmetrically provided with two baffle plates 25 about the axis of the fixed sleeve, the cross section of the baffle plates 25 is of a semicircular structure, a circular structure which is attached to the inner wall of the feeding cylinder 22 is formed, a limit component 26 is arranged between the rotating rod 23 and the feeding cylinder 22, the limit component 26 comprises a positioning seat 261, the outer wall of the rotating rod 23 and the rotating rod is uniformly provided with a plurality of positioning seats 261, the positioning seats 261 are uniformly arranged on the right side of the rotating rod 23, one side of the positioning seats 261 is far away from the connecting rod 262, and is far away from the annular positioning seat 262, and is far from the annular positioning seat 262, and far from the annular positioning seat 262 is far away from the annular positioning seat 262, and far from the connecting rod is far from the annular positioning seat 262, and far from the rotating seat 262 is far from the connecting rod and far from the annular seat 262; in the initial state, the baffle 25 is horizontally placed, so that the charging barrel 22 can be blocked (as shown in fig. 5), and the barite particles on the upper side of the charging barrel 22 are prevented from falling.

During operation, crushed barite particles are poured into the feeding barrel 22, then the rotating rod 23 is rotated, the rotating rod 23 drives the baffle plate 25 to rotate through the fixed sleeve 24, so that the baffle plate 25 rotates to be in an inclined state, gaps exist between the baffle plate 25 and the inner wall of the feeding barrel 22, the blocking effect on the feeding barrel 22 is relieved, the barite particles are blanked into the grinding barrel 1 through the gaps, in addition, the rotation amplitude of the baffle plate 25 can be controlled through the pointer 231 and the scale 232, the inclination angle of the baffle plate 25 is controlled, and when the inclination angle of the baffle plate 25 is smaller, the gaps between the baffle plate 25 and the inner wall of the feeding barrel 22 are smaller, so that the feeding amount of the barite particles can be reduced; when the baffle 25 rotates to a vertical state, the gap between the baffle 25 and the inner wall of the feeding barrel 22 is the largest (as shown in fig. 3), so that the feeding amount of barite particles is increased, the feeding amount of barite particles can be controlled, during this period, the rotating rod 23 drives the connecting rod 262 and the limiting ball 263 to move circumferentially through the positioning seat 261, when the rotating rod 23 rotates to a certain angle, the connecting rod 262 drives the limiting ball 263 to abut against the inside of the limiting groove under the action of the torsion spring, and thus the rotating rod 23 can be limited, the rotating rod 23 can not rotate at will under the action of no external force, the feeding amount of barite particles can be controlled, and the barite particles are prevented from being accumulated to influence normal grinding.

Referring to fig. 2, 7 and 8, the grinding unit 3 includes a driving motor 31, the lower end of the grinding drum 1 is provided with the driving motor 31 through a motor base, a positioning shaft 32 is installed on an output shaft of the driving motor 31, a shaft sleeve 33 is sleeved on the upper side of the positioning shaft 32, a plurality of linkage rods 34 are uniformly installed on the outer wall circumference of the shaft sleeve 33, an annular positioning frame 35 is installed on the inner wall of the grinding drum 1, an annular groove rotationally connected with the end part of the linkage rod 34 is formed in the inner wall of the annular positioning frame 35, the linkage rod 34 can be supported through the annular positioning frame 35, one end of the linkage rod 34, which is far away from the positioning shaft 32, is prevented from tilting downwards, an annular seat 37 rotationally sleeved on the outer wall of the positioning shaft 32 is installed at the lower end of the annular positioning frame 35, a plurality of annular seats 37 which are staggered with meshes are arranged at the upper end of the annular seat 36, a plurality of grinding columns 38 are installed at equal intervals along the length direction of the lower end of the linkage rod 34, the longitudinal section of the annular seat 37 is in a semicircular structure, the lower end of the grinding columns 38 are in hemispherical structure, the lower ends of the two adjacent annular seats 37 are located, and slide against the annular seats 37, and the annular seats 37 are in sliding contact with the annular seats 37, and a discharging assembly 39 is arranged at the bottom of the grinding drum 1.

During operation, after barite particles are fed into the grinding drum 1, the driving motor 31 is started, the driving motor 31 drives the positioning shaft 32 to rotate, the positioning shaft 32 drives the linkage rod 34 and the grinding column 38 to move circumferentially through the shaft sleeve 33, and the bearing mesh plate 36 and the annular seat 37 do not rotate, so that the grinding column 38 and the annular seat 37 move relatively, and the barite particles are subjected to multistage grinding treatment through the cooperation between the grinding column 38 and the annular seat 37, so that the barite particles are ground into barite powder, and then the ground barite powder is discharged through the bearing mesh plate 36 and falls to the bottom of the grinding drum 1.

Referring to fig. 9 and 10, the discharging assembly 39 includes a mounting rod 391, the lower end of the grinding drum 1 is provided with an air storage chamber 392 through two mounting rods 391 symmetrically arranged about the axis thereof, the lower end of the air storage chamber 392 is provided with an air pump 393, the inner bottom wall of the grinding drum 1 is circumferentially and uniformly provided with a plurality of air discharge drums 394, the outer wall of the air storage chamber 392 is circumferentially and uniformly provided with a plurality of connecting pipes 395 communicated with the air discharge drums 394, one end of each connecting pipe 395 away from the air storage chamber 392 is communicated with the air discharge drums 394, the outer wall of each air discharge drum 394 is circumferentially and uniformly and equidistantly penetrated from top to bottom to form a plurality of air outlet holes 396, the outer wall of each air outlet hole 396 is provided with a dust cover 397, the diameter of one side of the dust cover 397 away from the axis of the air discharge drums 394 is gradually reduced, and the heavy crystal powder inside the grinding drum 1 can be prevented from entering the air discharge drums 394 through the dust cover 397; during grinding barite particles, the air pump 393 is started, the air pump 393 charges air into the air storage chamber 392, air in the air storage chamber 392 enters the exhaust barrel 394 through the connecting pipe 395, then air in the exhaust barrel 394 is blown out through the air outlet 396 and the dust cover 397, so that barite powder at the bottom of the grinding barrel 1 is lifted up and discharged to the outside of the grinding barrel 1 through the discharge hole 11 and the guide barrel 12, collection of the barite powder is finished, the discharge efficiency of the barite powder can be improved, fineness of the blown barite powder can be ensured, in addition, the barite particles at the mesh of the supporting mesh plate 36 can be blown up through the air blown out by the exhaust barrel 394, and the barite particles are prevented from blocking the supporting mesh plate 36 to influence the discharge of the barite powder, so that multistage grinding treatment of the barite powder particles is finished.

the first step: barite feeding: firstly, crushed barite particles are poured into a feeding barrel 22, then a rotating rod 23 is rotated, the rotating rod 23 drives a baffle plate 25 to rotate through a fixed sleeve 24, the baffle plate 25 rotates to be in an inclined state, gaps exist between the baffle plate 25 and the inner wall of the feeding barrel 22, the barite particles are enabled to fall into the grinding barrel 1 through the gaps, and in addition, the feeding amount of the barite particles can be controlled by controlling the inclination angle of the baffle plate 25.

And a second step of: grinding barite: the positioning shaft 32 is driven to rotate by the driving motor 31, the positioning shaft 32 drives the linkage rod 34 and the grinding column 38 to move circumferentially through the shaft sleeve 33, so that the barite particles are ground by the cooperation between the grinding column 38 and the annular seat 37, and the barite particles are ground into barite powder, and then the ground barite powder is discharged through the supporting mesh plate 36 and falls to the bottom of the grinding cylinder 1.

And a third step of: discharging the barite powder: the air pump 393 is started, the air pump 393 charges air into the air storage chamber 392, air in the air storage chamber 392 enters the exhaust barrel 394 through the connecting pipe 395, and then air in the exhaust barrel 394 is blown out through the air outlet 396 and the dust cover 397, so that the barite powder at the bottom of the grinding barrel 1 is lifted up and discharged to the outside of the grinding barrel 1 through the discharge hole 11 and the guide barrel 12, and the collection of the barite powder is conveniently completed.

The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the foregoing embodiments, and that the foregoing embodiments and description are merely illustrative of the principles of this invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, and these changes and modifications fall within the scope of the invention as hereinafter claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The quantitative feeding grinding equipment for processing the barite powder is characterized by comprising a grinding cylinder (1), a feeding unit (2) and a grinding unit (3), wherein a feed inlet is formed in the upper end of the grinding cylinder (1), the feeding unit (2) is arranged above the grinding cylinder (1), and the grinding unit (3) is arranged inside the grinding cylinder (1);

the feeding unit (2) comprises a supporting cylinder (21), the upper end of the grinding cylinder (1) is provided with the supporting cylinder (21), the supporting cylinder (21) is provided with a feeding cylinder (22) in a penetrating mode, the lower end of the feeding cylinder (22) is located above the feeding hole, the feeding cylinder (22) is rotationally connected with a rotating rod (23) which is vertically distributed with the axis of the feeding cylinder, the right end of the rotating rod (23) penetrates through the supporting cylinder (21), the outer wall of the rotating rod (23) is fixedly sleeved with a fixing sleeve (24) and is located inside the feeding cylinder (22), two stop plates (25) are symmetrically arranged on the outer wall of the fixing sleeve (24) around the axis of the fixing sleeve, and a limiting assembly (26) is arranged between the rotating rod (23) and the feeding cylinder (22);

the grinding unit (3) comprises a driving motor (31), the lower end of the grinding cylinder (1) is provided with the driving motor (31) through a motor cabinet, a positioning shaft (32) is installed on an output shaft of the driving motor (31), a shaft sleeve (33) is sleeved on the upper side of the positioning shaft (32), a plurality of linkage rods (34) are evenly installed on the periphery of the outer wall of the shaft sleeve (33), an annular positioning frame (35) is installed on the inner wall of the grinding cylinder (1), an annular groove rotationally connected with the end part of the linkage rod (34) is formed in the inner wall of the annular positioning frame (35), a supporting mesh plate (36) rotationally sleeved on the outer wall of the positioning shaft (32) is installed at the lower end of the annular positioning frame (35), a plurality of annular seats (37) staggered with meshes of the supporting mesh plate (36) are arranged at equal intervals along the length direction of the lower end of the linkage rod (34), and a discharging assembly (39) is arranged at the bottom of the grinding cylinder (1).

2. The quantitative feeding grinding device for processing barite powder according to claim 1, wherein: the discharging assembly (39) comprises mounting rods (391), an air storage chamber (392) is arranged at the lower end of the grinding cylinder (1) through two mounting rods (391) which are symmetrically arranged around the axis of the grinding cylinder, an air pump (393) is arranged at the lower end of the air storage chamber (392), a plurality of air discharge cylinders (394) are uniformly arranged on the circumference of the inner bottom wall of the grinding cylinder (1), a plurality of connecting pipes (395) which are communicated with the air storage cylinders are uniformly arranged on the circumference of the outer wall of the air storage chamber (392), and one end, far away from the air storage chamber (392), of each connecting pipe (395) is communicated with the corresponding air discharge cylinder (394).

3. The quantitative feeding grinding device for processing barite powder according to claim 1, wherein: spacing subassembly (26) are including positioning seat (261), a plurality of positioning seats (261) are evenly installed to bull stick (23) outer wall and are located feeding barrel (22) right side circumference, and one side that bull stick (23) was kept away from to positioning seat (261) articulates through the torsional spring has connecting rod (262), and spacing ball (263) are installed to one side that positioning seat (261) was kept away from to connecting rod (262), and feeding barrel (22) right side wall is provided with annular frame (264), and a plurality of spacing grooves that contradict with spacing ball (263) slide have evenly been seted up to annular frame (264) right-hand member circumference.

4. The quantitative feeding grinding device for processing barite powder according to claim 2, wherein: the exhaust funnel (394) outer wall circumference is even and from the top down equidistant runs through and has offered a plurality of ventholes (396), and dust cover (397) are installed to venthole (396) outer wall, and the diameter of dust cover (397) one side of keeping away from exhaust funnel (394) axis reduces gradually.

5. The quantitative feeding grinding device for processing barite powder according to claim 1, wherein: the longitudinal section of the annular seats (37) is of a semicircular structure, the lower ends of the grinding columns (38) are of hemispherical structures, and the lower ends of the grinding columns (38) are located between two adjacent annular seats (37) and are in sliding contact with the annular seats (37).

6. The quantitative feeding grinding device for processing barite powder according to claim 1, wherein: a plurality of discharge ports (11) are uniformly formed in the circumferential direction of the outer wall of the bottom of the grinding cylinder (1), one side, far away from the axis of the grinding cylinder (1), of the discharge port (11) is gradually inclined downwards, and a guide cylinder (12) is arranged on the outer wall of the discharge port (11).

7. The quantitative feeding grinding device for processing barite powder according to claim 1, wherein: pointer (231) is installed to bull stick (23) right side outer wall, and the right side wall of support section of thick bamboo (21) evenly is provided with a plurality of scales (232) that use with pointer (231) cooperation along bull stick (23) circumference.

8. The quantitative feeding grinding device for processing barite powder according to claim 1, wherein: the cross section of each baffle plate (25) is of a semicircular structure, and the two baffle plates (25) can form a circular structure which is attached to the inner wall of the charging barrel (22).