CN101773863A

CN101773863A - Disc grinder

Info

Publication number: CN101773863A
Application number: CN201010101511A
Authority: CN
Inventors: 郭宝东
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-01-27
Filing date: 2010-01-27
Publication date: 2010-07-14

Abstract

The invention relates to a disc grinder, which can grind iron powder or ores instead of a ball mill and comprises an upper grinding table and a lower grinding table. The disc grinder is characterized in that the drive shaft of a motor is connected with a stand by the centers of the upper grinding table and the lower grinding table by a bearing, wherein the lower grinding table is fixed on the stand; the upper grinding table is connected with the drive shaft by a mace; the upper grinding table is provided with a blanking hole 7; the lower middle part of the upper grinding table is sunk, and the upper grinding table is provided with a material distribution plate 9; the external grinding part of the upper grinding table is provided with a grinding slot 13; the direction of the material distribution plate is the same with the oblique direction of the grinding slot; the grinding slot of the lower grinding table and the grinding slot when the upper grinding table is inverted are correspondingly arranged in the same direction and the same angle; moreover, the upper grinding table is also provided with an inner striker plate and an outer striker plate; the center of the lower grinding table is provided with the inner striker plate; and the upper shafts of the grinding tables are provided with screws and springs. The disc grinder can be used for processing low-grade iron powder, can also directly process ores with smaller particle sizes, crushed by a hammer crusher and can also be matched with the ball mill to process return sand on a high-frequency screen, thereby improving the quality of the ball mill.

Description

The disk mill

Technical field: patent of the present invention relates to a kind of machinery of attrition process iron powder.

Technical background: in the ore dressing processing of reality, ball mill is widely used, yet ball mill has shortcomings such as cost height, power consumption is big, noise is big.

The patent of invention content:

The task of patent of the present invention is: at the problems referred to above, provide a kind of disk mill, it can replace ball mill to process low-grade iron powder, to its porphyrize processing, thereby reaches needed high-grade iron powder; Can also directly process the less ore of granularity after hammer mill is pulverized; Can also cooperate the sand that returns on the ball mill processing high frequency sieve, thereby improve the output of ball mill.Its technical solution is: a kind of disk mill, comprise two mills up and down, it is characterized in that: motor driving shaft passes through the center of two mills up and down, and be connected on the frame by bearing, wherein lower millstone is fixed on the frame, upper millstone is connected on the driving shaft by mace, making it follow driving shaft together rotates, the center hole of upper millstone than driving shaft slightly larger in diameter some, like this along with the wearing and tearing of mill means of abrasion, but the upper millstone free-falling, the center hole of lower millstone is greater than the driving shaft diameter.Upper millstone is provided with material-dropping hole, intermediate recess and be provided with cutting plate below it, and outside means of abrasion is provided with grinding groove, and the outside means of abrasion of lower millstone also is provided with grinding groove.Wherein, said material-dropping hole is radioactivity and evenly distributes around the upper millstone center; Said cutting plate is arranged between material-dropping hole and the grinding groove, sub-material from inside to outside, the oblique same direction of its direction and grinding groove; Grinding groove when the grinding groove above the said lower millstone and upper millstone turn over and put below it is equidirectional with the corresponding setting of angle; In addition, on the mill upper axis, be provided with spiral and spring, on upper millstone, being provided with striker plate and outside striker plate, be provided with interior striker plate at the lower millstone center.

Its operation principle: the less ore of the low-grade iron powder of required processing or granularity enters in the mill by the material-dropping hole of upper millstone, assign in the grinding groove through cutting plate by flow action, because the upper millstone rotation produces friction with lower millstone, grind through grinding groove, thereby iron powder or ore porphyrize are reached the purpose of powder material.The thickness of grinding can be effective through overregulating mill top spiral, is screwed down the spiral pressuring spring, produces downward power, thereby makes the thinner of improved grinding.

Compare under the situation with Isoquant with ball mill, the advantage of patent of the present invention is:

1, cost is low.Making a ball mill needs hourglass head, two bistriques, staving, gear ring, bistrique sieve, reductor, motor, frame etc., also will all spread liner plate in its staving, loads onto iron ball.Patent of the present invention only needs motor, frame, reductor, axle, two mills are just passable up and down, and cost only is equivalent to the 20%-40% of ball mill.

2, energy savings, power consumption is few.Patent of the present invention is to produce friction through upper millstone rotation and lower millstone, grind the purpose that reaches powder material through grinding groove, therefore need not add iron ball, and the liner plate of casting with manganese steel or steel alloy than ball mill with two mill means of abrasion that manganese steel or steel alloy are cast lacks a lot, need the liner plate about the 3-6 ton on the general ball mill, and two used mill means of abrasion only need about the 1-2 ton on the patent of the present invention just much of that.The rotation of motor-driven ball milling on the ball mill need overcome the weight of iron powder in the weight, staving of weight, the iron ball of weight, the liner plate of ball mill self or ore, and its power consumption is huge; And the frictional force that patent of the present invention only need overcome upper millstone and lower millstone just, and power consumption economizes a lot than ball mill.

3, simple in structure, easy to manufacture, operation and maintenance is all very convenient.

4, noise is low.Ball mill is that the impulsive force when by the rotation staving ore of its inside or the rolling of iron powder and iron ball being fallen is ground, and its noise is huge, and patent of the present invention is the purpose that reaches powder material by the friction of last lower millstone, and its noise is very little.

Patent shortcoming of the present invention is and can not processes the bulky grain ore, need to grind again behind the big grain ore fine ore with the hammer mill that generally uses now, a kind of benefit is so also arranged, granule ore after the pulverizing can select one time through magnetic separator earlier, grind through patent of the present invention after mine tailing selected, so therefore output also can increase again.

Patent of the present invention is of many uses, on can be used on iron ore, also can be used on the industries such as gold mine or lime ore deposit.

Description of drawings:

Fig. 1 is the structural representation of patent of the present invention.

Fig. 2 is the last floor map of upper millstone.

Fig. 3 is the lower plane schematic diagram of upper millstone.

Fig. 4 is the last floor map of lower millstone.

Fig. 5 is the shape schematic diagram of grinding groove.

The specific embodiment:

As shown in Figure 1, patent of the present invention provides a kind of disk mill, it comprises two mills up and down, it is characterized in that: motor driving shaft 1 passes through the center of two mills up and down, and be connected on the frame 3 by bearing 2, its lower millstone 4 is fixed on the frame 3, and upper millstone 5 is connected on the driving shaft 1 by mace 10, upper millstone 5 is provided with material-dropping hole 7, intermediate recess and be provided with cutting plate 9 and grinding groove 13 below it.As shown in Figure 2, said here material-dropping hole 7 is radioactivity around the center of upper millstone and evenly distributes.As shown in Figure 3, said cutting plate 9 is arranged between material-dropping hole 7 and the grinding groove 13, sub-material from inside to outside, the oblique same direction of its direction and grinding groove.Grinding groove 13 below when grinding grooves 14 and upper millstone 5 turn over and put above the said as shown in Figure 4 lower millstone 4 is equidirectional with the corresponding setting of angle.Like this, just upper millstone is turned over when putting, watch two mills, their grinding groove is identical, and when this patent of invention was in running order, their grinding groove intersected, only in this way when it is in relative motion, and the grinding effect that can produce.In addition, not excessive in order to ensure mineral aggregate, on upper millstone 5, be respectively equipped with Internal baffle 8 and outer backgauge weighs 6, striker plate 15 in being provided with on lower millstone 4.

Claims

1. a disk grinds, comprise two mills up and down, it is characterized in that: motor driving shaft (1) passes through the center of two mills up and down, and be connected on the frame (3) by bearing (2), its lower millstone (4) is fixed on the frame (3), upper millstone (5) is connected on the driving shaft (1) by mace (10), the center hole of upper millstone (5) than the slightly larger in diameter of driving shaft (1) some, the center hole diameter of lower millstone (4) is greater than the diameter of driving shaft (1), upper millstone (5) is provided with material-dropping hole (7), its underpart intermediate recess also is provided with cutting plate (9), and outside means of abrasion is provided with grinding groove (13), and the outside means of abrasion of lower millstone (4) is provided with grinding groove (14).The mill upper axis is provided with spiral (11) and spring (12).

2. according to the disk mill of claim 1, it is characterized in that: said material-dropping hole (7) is radioactivity around the mill center and evenly distributes.

3. the disk according to claim 1 or 2 grinds, it is characterized in that: on upper millstone (5), be provided with several material-dropping holes (7) and just be provided with several cutting plates (9), its cutting plate (9) is arc and is arranged between material-dropping hole (7) and the grinding groove (13), sub-material, the direction of cutting plate (9) and the oblique same direction of grinding groove (13) from inside to outside.

4. the disk according to claim 1 or 2 grinds, it is characterized in that: the grinding groove (13) the when grinding groove (14) above the said lower millstone (4) and upper millstone (5) turn over and put below it is equidirectional with the corresponding setting of angle, and the grinding groove (14) on grinding groove (13) on the upper millstone (5) and the lower millstone (4) intersects in working order the time.The grinding groove (13) of its upper millstone (5) is sharp triangle and changes from small to big to the direction of rotation height, and the grinding groove (14) of lower millstone (4) is sharp triangle to the direction of rotation height from large to small.Grinding groove can be established long grinding groove and short grinding groove.

5. the disk according to claim 1 or 2 grinds, it is characterized in that: upper millstone (5) contacts means of abrasion outside with lower millstone (4) be the plane, caves in gradually and be provided with grinding groove in the inside, and its means of abrasion is made by high abrasion resisting material, by bolting, can unload freely after the wearing and tearing and change.

6. according to the disk of claim 1 or 2 mill, it is characterized in that: on upper millstone (5), be provided with interior striker plate (8) and outside striker plate (6), be provided with interior striker plate (15) at lower millstone (4) center.