CN201389478Y

CN201389478Y - Vertical ball mill

Info

Publication number: CN201389478Y
Application number: CN200920012750U
Authority: CN
Inventors: 那贵明; 赵溪泉; 那贵彬
Original assignee: Individual
Current assignee: Zhao Xiquan
Priority date: 2009-04-02
Filing date: 2009-04-02
Publication date: 2010-01-27
Anticipated expiration: 2019-04-02

Abstract

The utility model relates to a vertical ball mill, which comprises a shell in which at least four grinding discs, grinding balls and a central shaft are mounted, the middle of each grinding disc is provided with a through hole, the grinding discs are axially arranged, each grinding ball is mounted between two neighboring grinding discs, and the central shaft is driven by a power unit and can be inserted into the through holes of the middles of the grinding discs to drive the grinding discs to synchronously rotate. The grinding discs of the ball mill not only can drive the grinding balls to roll, but also can rotate the grinding balls; on one hand, due to a number of stages, the ball mill with the structure can ensure that the particles of the ground material can become thinner, on the other hand, because the grinding balls can become smaller and smaller and can roll, the grinding balls can be driven by little external force, and therefore energy can be saved when the ball mill operates.

Description

A kind of vertical ball mill

Technical field:

The utility model relates to a kind of vertical ball mill.

Background technology:

Existing ball mill adopts horizontal type structure usually, and the ball mill of this kind structure is by drive motors, driving gear set, revolution main shaft and rotating disk, and the cylinder that pivots constitutes.Ball mill at first is placed with many rigid balls in when work in cylinder, when cylinder swayed, rigid ball was subjected to action of centrifugal force, and relies on the frictional resistance between itself and the liner to be turned to lofty perch free-falling again, and then abrasive material is pulverized.This shows, the ball mill of this kind structure is when comminuting matter, be to rely on the mode of rigid ball disordered motion to clash into material, so that material is pulverized, and the problem that this grinding mode at first reflects is to waste energy, because of cylinder volume and quality huge, want to make its rotation must apply powerful driving force, it is its main cause that wastes energy, simultaneously can not independently select clash into the material at which position when the comminuting matter because of the rigid ball of disordered motion, and this blindness can cause the pulverized material of repeated impact, and this is the Another reason that wastes energy; Another major issue be because of rigid ball be rely on and the cylinder liner between frictional resistance promote, so the cylinder interior lining panel very easily weares and teares, and the cost of liner plate is higher relatively, and change quite difficulty, not only improve production cost, and waste a large amount of raw material.In the prior art,, can only delay its service life, really can not solve this substantive issue that wastes energy by material or the structure of improving liner plate though those skilled in the art recognize the problems referred to above.

For this reason, the name of Chinese patent 2542327Y number bulletin is called " a kind of vertical double mineral flour mill " and provides a kind of improvement project.This flour mill comprises the abrasive material parts of two continuous comminuting matters, each abrasive material parts is by upper millstone and lower millstone, and be installed in two abrading-balls between the mill and constitute, and the press member that is made of hydraulic test is installed in the abrasive material upper parts of components, its feed is to be provided by the electromagnetic shock loader, and discharging adopts the induced air type gatherer that material is forced to absorb in the gatherer.Yet, because adopting last lower millstone in this flour mill fixes, middle mill rotation is with the structure of the mode grinding material of drive abrading-ball rotation, cause the abrading-ball can only autorotation in the plane at its place, can not be along with mill rotate synchronous rolling, produce relative big frictional resistance and rely on the autorotation grinding material to make merely between mill and the abrading-ball, and then easily cause mill and abrading-ball to damage too early, so the service life of this flour mill is short; Because of adopting the mode of induced draft blower withdraws, this flour mill collects pulverized material simultaneously, and be trapped in usually by levigate powder in the mill track of abrading-ball bottom, when induced draft blower withdraws, it is very difficult wanting to make the interior powder of mill track to be drawn in the gatherer, because of when wind-force is too small, the material collection that is difficult for being scheduled to fineness is in gatherer, and wind-force is excessive, large granular materials can be collected in the gatherer together, and then influenced by the quality of comminuting matter; In addition, for vertical flour mill, comminuting matter mainly is to rely on the weight and the mill of abrading-ball self that abrading-ball institute applied pressure is realized, and the weight of abrading-ball self and mill are directly proportional with the driving force that driving mechanism provides to abrading-ball institute applied pressure, under normal conditions, in layering or classification pulverizing, its layer or level are many more energy-conservation more, and material pulverized carefully more, so, the double-deck flour mill of this kind wastes energy relatively, and the fineness that material is pulverized is undesirable.

Summary of the invention:

Task of the present utility model provides a kind of also roll when utilizing the abrading-ball rotation and the mode of multistage pulverizing solves the vertical ball mill of problems such as energy waste and fineness be undesirable.

The vertical ball mill that the utility model proposed comprises housing, the middle part is installed in this housing is provided with at least four mills of through hole and axially-aligned and is installed in abrading-ball between adjacent two mills, and drive by power set and can insert in the through hole of mill middle part to drive the axis that mill rotates synchronously.

The assembly of exerting pressure that is used to push mill also is installed in the described housing.The described assembly of exerting pressure is made of the spring or the hydraulic test of the lower surface of upper surface that is installed in the topmost mill and foot mill.The top of described housing also is provided with dog-house and water inlet.

Described power set comprise the motor that is installed in housing top and by this electric motor driven decelerator, and the output of decelerator is connected with axis.

Described mill is provided with the slideway that is used to limit the abrading-ball position.Described mill is provided with feed opening near the position of slideway.Described mill is provided with 5-8, and the volume of the abrading-ball of installing between adjacent two mills dwindles from top to bottom gradually.

The vertical ball mill that the utility model proposed adopts the structure of at least three grades of abrading-ball comminuting matters, and the volume of each grade abrading-ball dwindles from top to bottom gradually, its working method is that the mill rotation can drive the abrading-ball rolling, can make the abrading-ball rotation again, the ball mill of this structure can make by the particle of comminuting matter thinner on the one hand because of progression is many, dwindle gradually because of the abrading-ball volume on the other hand and can roll, only need relatively little external force just it can be driven, so this ball mill in the course of the work can be energy-conservation; Adopt the mode separation of material of water flushing simultaneously because of this ball mill,, continue to pulverize so that large granular materials stops or enter the next stage abrading-ball, so this kind separate mode can obtain the material of even and predetermined fineness so that fine granular materials can float; In addition, applying assembly makes and production cost as adopting spring to reduce.

Description of drawings:

Accompanying drawing 1 is the outward appearance cross-sectional view of the embodiment of vertical ball mill that proposes of the utility model;

Accompanying drawing 2 is the surface structure schematic diagrames of an embodiment of mill among Fig. 1;

Accompanying drawing 3 is the surface structure schematic diagrames of another embodiment of mill among Fig. 1.

The specific embodiment:

Referring to Fig. 1, this figure provides the overall appearance structure of the embodiment of vertical ball mill that the utility model proposes.This ball mill comprises columniform housing 1, the assembly 4 of exerting pressure, mill 2, power set 3 and abrading-ball 5.

The end of housing 1 is provided with dog-house 11 and water inlet 12, and power set 3.Power set 3 comprise motor 31 and by this electric motor driven decelerator 32, and the output of decelerator 32 is connected with axis 6.The surface of axis 6 is provided with the axial notch 61 that extends internally, and the middle part of each mill 2 is provided with the through hole 21 that allows axis 6 to insert, outward extending and the fin 24 that be complementary with the quantity and the shape of described groove 61 radially being provided with of through hole 21, in inserting through holes 21, axis 6 afterwards and when rotating, can drive mill 2 rotations synchronous with it.Though only provide five mills, 2 these a kind of structures in the present embodiment, according to four or six to eight mills 2 also being set by the kind of comminuting matter and fineness.

Between adjacent two mills 2, abrading-ball 5 is installed, five mills 2 that provide in the present embodiment form four layers or level Four abrading-ball 5 altogether, and the volume of abrading-ball 5 dwindles from top to bottom gradually, adopt four layers of abrading-ball 5 and the abrading-ball 5 diminishing structures can be so that material is pulverized very carefully or the fineness that requires, again can be energy-conservation because of the minimizing of the volume or weight of abrading-ball 5.In order to guarantee can to produce bigger active force between abrading-ball 5 and the material, be separately installed with the assembly 4 of exerting pressure that constitutes by spring at the upper surface of topmost mill 5 and the lower surface of foot mill 5, this assembly 4 of exerting pressure can also be made of hydraulic test.

Referring to Fig. 2, this figure provides the surface structure schematic diagram of

topmost mill

2 or 2 one embodiment of foot mill.The middle part of this mill 2 is provided with through hole 21, is provided with the projection 23 that is used to limit spring or hydraulic test at upper surface, and lower surface is provided with the slideway 22 that is used for limiting abrading-ball 5 positions (figure does not demonstrate, but identical with slideway shown in Figure 3 22).

Referring to Fig. 3, this figure provides the surface structure schematic diagram of 2 one embodiment of middle part mill.The middle part of this mill 2 is provided with through hole 21, is respectively arranged with the annular slide track 22 that caves inward on two face, and is provided with feed opening 25 between through hole 21 and slideway 22.Because the material after abrading-ball 5 grinds promptly can fall into down one deck mill 2 from feed opening 25 positions, also can fall into down behind one deck in the mill 2, by mill 2 peripheries so mill 2 also can adopt the structure (not providing among the figure) that feed opening 25 is not set.

Claims

1, a kind of vertical ball mill, it is characterized in that: this ball mill comprises housing, the middle part is installed in this housing is provided with at least four mills of through hole and axially-aligned and is installed in abrading-ball between adjacent two mills, and drive by power set and can insert in the through hole of mill middle part to drive the axis that mill rotates synchronously.

2, vertical ball mill according to claim 1 is characterized in that: the assembly of exerting pressure that is used to push mill also is installed in the described housing.

3, vertical ball mill according to claim 2 is characterized in that: the described assembly of exerting pressure is made of the spring or the hydraulic test of the lower surface of upper surface that is installed in the topmost mill and foot mill.

4, vertical ball mill according to claim 1 is characterized in that: described mill is provided with 5-8 from top to bottom.

5, vertical ball mill according to claim 1 is characterized in that: the top of described housing also is provided with dog-house and water inlet.

6, vertical ball mill according to claim 1 is characterized in that: described power set comprise the motor that is installed in housing top and by this electric motor driven decelerator, and the output of decelerator is connected with axis.

7, vertical ball mill according to claim 1 is characterized in that: described mill is provided with the slideway that is used to limit the abrading-ball position.

8, vertical ball mill according to claim 7 is characterized in that: described mill is provided with feed opening near the position of slideway.

9, according to claim 1 or 4 described vertical ball mills, it is characterized in that: the volume of the abrading-ball of installing between the described mill dwindles from top to bottom gradually.