CN214599449U

CN214599449U - Screening feeding ball mill

Info

Publication number: CN214599449U
Application number: CN202120145890.0U
Authority: CN
Inventors: 马立荣
Original assignee: Shizuishan Huayue Chemical Co ltd
Current assignee: Shizuishan Huayue New Material Technology Co ltd
Priority date: 2021-01-20
Filing date: 2021-01-20
Publication date: 2021-11-05
Anticipated expiration: 2031-01-20

Abstract

The utility model provides a screening feeding ball mill, this ball mill includes: rotatory cylinder ball-milling bucket, the rotatory driving motor of drive ball-milling bucket sets up in the speed reducer of driving motor and ball-milling bucket support, sets up in the support tile of ball-milling bucket below, and the ball-milling bucket includes: the device comprises a rough grinding bin and a fine grinding bin, wherein the rough grinding bin is positioned on one side, close to a driving motor and a speed reducer, of a ball grinding barrel, a feeding pipe of the ball grinding mill penetrates into the ball grinding barrel from the center of one side of the fine grinding bin and extends to the rough grinding bin, a plurality of material passing holes are formed in the part, penetrating through the fine grinding bin, of the feeding pipe, and the rough grinding bin and the fine grinding bin are mainly used for sorting materials entering the ball grinding mill in a bin mode.

Description

Screening feeding ball mill

Technical Field

The utility model relates to a screening ball mill especially relates to a screening feeding ball mill.

Background

The ball mill is a key device for crushing materials after the materials are crushed, the ore mill of the type is characterized in that a certain amount of steel balls are filled in a cylinder body of the ore mill to serve as grinding media, and the ore mill is widely applied to production industries of cement, silicate products, novel building materials, refractory materials, chemical fertilizers, nonferrous metal ore dressing, glass ceramics and the like.

In the process of using the carbide preparation to desalt this, need grind the carbide into likepowder, just can put into the setting furnace with it and carry out the nitridation reaction, but blocking phenomenon is serious in the carbide raw materials, need pass through multi-stage screening, just can send into the ball mill with the particulate matter that the size is suitable and grind, but remaining cubic material needs to increase crushing process.

SUMMERY OF THE UTILITY MODEL

The utility model provides a screening feeding ball mill for solving the problems existing in the prior art.

This ball mill includes: the ball milling device comprises a rotary cylindrical ball milling barrel, a driving motor for driving the ball milling barrel to rotate, a speed reducer arranged on the driving motor and a ball milling barrel bracket, and a supporting tile arranged below the ball milling barrel;

wherein, ball-milling bucket includes: the device comprises a rough grinding bin and a fine grinding bin, wherein the rough grinding bin is positioned on one side, close to a driving motor and a speed reducer, in a ball grinding barrel, a feeding pipe of the ball mill penetrates into the ball grinding barrel from the center of one side of the fine grinding bin and extends to the rough grinding bin, and a plurality of material passing holes are formed in the part, penetrating through the fine grinding bin, of the feeding pipe.

Furthermore, a discharging sieve barrel is arranged outside the fine grinding bin, a plurality of sieve holes are arranged on the circumference of the discharging sieve barrel, the discharging sieve barrel is sleeved outside the feeding pipe, the diameter of the discharging sieve barrel is larger than that of the feeding pipe, and the height of the discharging sieve barrel is smaller than the length of the part, outside the ball milling barrel, of the feeding pipe.

Furthermore, be equipped with first sieve between coarse grinding storehouse and the accurate grinding storehouse, set up the second sieve between accurate grinding storehouse and the ejection of compact sieve bucket, first sieve and second sieve are all setting up material passageway.

Further, in order to ensure that the materials are screened or crushed before entering the fine grinding bin, the maximum size of the material channel on the first sieve plate is larger than or equal to the diameter of the material passing hole and larger than the maximum size of the material channel on the second sieve plate.

Further, still set up spiral propulsion bucket on the inner wall of ball-milling bucket to promote the material and remove according to the direction from the corase grind storehouse to the correct grinding storehouse.

Further, in order to ensure that the motor is driven, when the ball milling bin is driven to rotate, the material in the feeding pipe moves along the direction from the fine grinding bin to the coarse grinding bin, and a reverse spiral pushing blade which is opposite to the spiral pushing blade in a rotating direction is arranged in the feeding pipe.

Furthermore, a plurality of arc convex bodies are uniformly arranged on the inner wall of the ball milling barrel, so that the steel balls in the ball milling barrel have larger contact area with the inner wall of the ball milling barrel when falling.

Furthermore, a housing fixedly arranged on the ground is surrounded outside the discharging screen barrel, and a discharging port is arranged below the housing.

The technical effects of the utility model reside in that: set up the sieve mesh on the feed channel of ball mill, make the carbide that has cubic material when the feeding, the granularity accords with the entering accurate grinding storehouse that grinds the requirement and grinds, and the great granule degree falls into the corase grind storehouse and carries out the breakage earlier, and the tiny particle raw materials after the breakage gets into the accurate grinding storehouse again through the material passageway on the first sieve, guarantees all materials at last to flow from the sieve material hole on the sieve bucket after the accurate grinding.

In order to improve the efficiency of the ball mill, the inner wall of the ball mill is provided with the arc convex body, so that when a steel ball falls and hits the inner wall of the ball milling bin, a larger impact contact area is generated between the steel ball and materials, and more materials can be crushed or ground when the steel ball falls each time.

Drawings

FIG. 1 is a front view of a ball mill according to the present invention;

FIG. 2 is a cross-sectional view of the inner wall of the ball mill of the present invention;

figure 3 is the cross-sectional view of the discharge port of the ball mill of the present invention.

In the figure, 1 is a ball milling bin, 2 is a driving motor, 3 is a speed reducer, 4 is a feeding pipe, 5 is a supporting tile, 6 is a discharging sieve barrel, 7 is a housing, 11 is a fine grinding bin, 12 is a coarse grinding bin, 13 is a first sieve plate, 14 is a second sieve plate, 15 is a spiral pushing movable blade, 16 is an arc convex body, 17 is a steel ball, 41 is a material passing hole, 42 is a reverse spiral pushing movable blade, and 71 is a discharging hole.

Detailed Description

The following describes embodiments of the present invention with reference to fig. 1 to 3.

Fig. 1 shows the structure of each part from the feed to the grinding inside a ball mill comprising: the ball milling device comprises a rotary cylindrical ball milling barrel 1, a driving motor 2 for driving the ball milling barrel 1 to rotate, a speed reducer 3 arranged on a bracket of the driving motor 2 and the ball milling barrel 1, and a supporting tile 5 arranged below the ball milling barrel 1; wherein, ball-milling bucket 1 includes: the device comprises a rough grinding bin 12 and a fine grinding bin 11, wherein the rough grinding bin 12 is positioned at one side, close to the driving motor 2 and the speed reducer 3, in the ball grinding barrel 1, a feeding pipe 4 of the ball grinding mill penetrates into the ball grinding barrel 1 from the center of one side of the fine grinding bin 11 and extends to the rough grinding bin 12, and a plurality of material passing holes 41 are formed in the part, passing through the fine grinding bin 11, of the feeding pipe 4.

A discharging sieve barrel 6 is arranged outside the fine grinding bin 11, a plurality of sieve holes are arranged on the circumference of the discharging sieve barrel 6, the discharging sieve barrel 6 is sleeved outside the feeding pipe 4, the diameter of the discharging sieve barrel 6 is larger than that of the feeding pipe 4, and the height of the discharging sieve barrel 6 is smaller than the length of the part, outside the ball milling barrel 1, of the feeding pipe 4; the maximum size of the material channel on the first sieve plate 13 is more than or equal to the diameter of the material passing hole 41 and more than the maximum size of the material channel on the second sieve plate 14.

The inner wall of the ball milling barrel 1 is also provided with a spiral propelling blade 15 to push the materials to move in the direction from the coarse grinding bin 12 to the fine grinding bin 11, and the feeding pipe 4 is internally provided with a reverse spiral propelling blade 42 which is opposite to the spiral propelling blade 15 in the rotating direction.

Fig. 2 illustrates a sectional structure of the inner wall of the ball milling bin, and a plurality of arc convex bodies 16 are uniformly arranged on the inner wall of the ball milling barrel 1, so that a larger contact area is formed between the inner wall of the ball milling barrel 1 and a steel ball 17 in the ball milling barrel 1 when the steel ball falls down.

Fig. 3 illustrates the structure of the discharge end of the ball mill, the discharge sieve barrel 6 surrounds a housing 7 fixedly arranged on the ground, and a discharge hole 71 is arranged below the housing 7.

The working principle is as follows: except the housing 7, the fine grinding bin 11, the coarse grinding bin 12, the first sieve plate 13, the second sieve plate 14, the feeding pipe 4 and the discharging sieve barrel 6 all rotate along with the ball milling bin 1, the material enters the ball milling bin 1 from the feeding pipe 4, under the action of the reverse spiral pushing blades 42, when the materials pass through the fine grinding bin 11, small-particle materials fall into the fine grinding bin 11 from the material passing hole 41, large-particle materials fall into the coarse grinding bin 12 from the left side of the first sieve plate 13, the ball grinding bin 1 is driven by the driving motor 2 and the speed reducer 3 to rotate ceaselessly, so that the steel balls 17 in the bin body fall down, the materials are crushed and ground, after the materials in the coarse grinding bin 12 are crushed, under the action of the spiral pushing blade 15, enters the fine grinding bin 11 through a material channel on the first sieve plate 13, and after the material is further ground in the fine grinding bin 11, enters the discharging screen barrel 6 through the material channel on the second screen plate 14 and finally flows out from the discharging hole 71 below the casing.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims

1. A screen feed ball mill, characterized in that it comprises: the ball milling device comprises a rotary cylindrical ball milling barrel (1), a driving motor (2) for driving the ball milling barrel (1) to rotate, a speed reducer (3) arranged on the driving motor (2) and a support of the ball milling barrel (1), and a supporting tile (5) arranged below the ball milling barrel (1);

wherein, ball-milling bucket (1) includes: rough grinding storehouse (12) and accurate grinding storehouse (11), rough grinding storehouse (12) are located ball-milling bucket (1) and are close to the one side of connecting driving motor (2) and speed reducer (3), and inlet pipe (4) of ball mill penetrate ball-milling bucket (1) from the center of accurate grinding storehouse (11) one side to extend to rough grinding storehouse (12), a plurality of punishment in advance hole (41) have been seted up to the part that inlet pipe (4) passed through accurate grinding storehouse (11).

2. A screen-fed ball mill according to claim 1, characterized in that the fine grinding chamber (11) is externally provided with a discharge screen barrel (6), the circumference of the discharge screen barrel (6) is provided with a plurality of screen holes, the discharge screen barrel (6) is sleeved outside the feed pipe (4), the diameter of the discharge screen barrel (6) is larger than that of the feed pipe (4), and the height of the discharge screen barrel (6) is smaller than the length of the part of the feed pipe (4) leaking out of the ball mill barrel (1).

3. A screen-fed ball mill according to claim 2, characterized in that a first screen deck (13) is arranged between the coarse grinding chamber (12) and the fine grinding chamber (11), a second screen deck (14) is arranged between the fine grinding chamber (11) and the discharge screen basket (6), and material channels are arranged on both the first screen deck (13) and the second screen deck (14).

4. A screen fed ball mill according to claim 3, characterized in that the maximum size of the material passage on the first screen deck (13) is larger than or equal to the diameter of the material passing hole (41) and larger than the maximum size of the material passage on the second screen deck (14).

5. A screen fed ball mill according to claim 3, characterized in that the inner wall of the mill bowl (1) is further provided with spiral propelling blades (15) to propel the material in a direction from the rough grinding silo (12) to the fine grinding silo (11).

6. A screen fed ball mill according to claim 5, characterized in that inside the feed pipe (4) are arranged opposite helical impelling blades (42) in a direction opposite to the direction of the helical impelling blades (15).

7. A screen fed ball mill according to claim 1, characterized in that the inner wall of the ball milling bowl (1) is provided with a plurality of circular arc convex bodies (16) in uniform steps, so that the ball milling bowl (1) has a larger contact area with the inner wall of the ball milling bowl (1) when the steel balls (17) fall down.

8. A screen-fed ball mill according to claim 2, characterized in that the discharge screen basket (6) surrounds a housing (7) fixedly arranged on the ground, and a discharge opening (71) is arranged below the housing (7).