CN2094393U

CN2094393U - Fine mill

Info

Publication number: CN2094393U
Application number: CN 91216902
Authority: CN
Inventors: 王五四; 李广祥; 徐正一; 王梓奇
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-06-28
Filing date: 1991-06-28
Publication date: 1992-01-29

Abstract

The utility model discloses a fine mill, belonging to the processing equipment of powder lot, in particular to the processing equipment of fine powder. The fine mill comprises more than one set of fine grinding device which is arranged longitudinally, and each set of comprises a stereo structure support, a driving roller, a milling iron which is parallel and appressed with the roller wall of the driving roller and a motive power part. The milling iron is provided with a universal device and a spring attachment. The milling iron can be automatically adjusted and contact the roller wall of the driving roller in parallel, and the effect of fine milling can be ensured. Compared with traditional ball mill, the fine mill of the utility model has the advantages of small energy consumption and convenient migration, being suitable for being used in the powder lot processing industry of the mine, the cement, the chemical industry, the building material, etc.

Description

Fine mill

The utility model belongs to the powder process equipment, and is especially relevant with the process equipment of fine powder.

Mine, cement, chemical industry and building materials industry all need varigrained powder, will pass through fragmentation and fine grinding usually.The most frequently used fine grinding device is a ball mill, and it is made up of cylindrical shell, steel ball, support, must be fixedly mounted on the darker ground.This ball mill mainly is to finish grinding of powder by powder at the mill that constantly squeezes between the steel ball and between steel ball and cylindrical shell.Therefore, have following shortcoming inevitably: iron dyes greatly, and power consumption is big, needs big support and ground, can not move operation according to actual needs easily.

The purpose of this utility model is to design a kind of atomizer mill, and this atomizer mill energy consumption is low, is convenient to migration.

The atomizer mill of the utility model design is made up of cover fine grinding device above, that vertically be provided with.Every cover fine grinding device comprises mill body, support and power section, and its medium-height trestle is the stereochemical structure frame, and the mill body is the mill iron that is installed in the drive roll on the stereochemical structure frame and is close to drive roll roller wall.The stereochemical structure frame by at a distance of certain intervals, weld at an angle of 90 by the wall of the fastening all-in-one-piece of row's bolt two fan parallel vertical, with the wall bottom outwardly directed two tighten up plate and the machine underframe is formed, tighten up plate and the machine underframe fuses with bolt.Mill iron recede the inclination angle is set can be in 5-60 degree scope, the too little inconvenience in inclination angle is reinforced, the excessive inconvenient discharge in inclination angle.Its plane and parallel being close to of drive roll roller wall, its upper end center universal head is housed, make the mill iron can about, about freely rotate; The lower end homonymy of mill iron has spring attachment, under the acting in conjunction of universal head and spring attachment, mill iron can be adjusted in the course of the work automatically with drive roll roller wall keeping parallelism contact.Power section comprises motor and transmission mechanism, and wherein transmission mechanism can adopt common gear, belt pulley, variety of ways such as sprocket wheel.

According to the thickness requirement different to material, the fine grinding device can have a cover, is combined into multistage atomizer mill more than two covers or two overlap.Every cover atomizer mill is vertical configuration, and the axis of each drive roll is parallel to each other, but not on same vertical plane, can admit discharge material after higher level's fine grinding device grinds easily with the charging aperture of the fine grinding device that guarantees next stage.

For the discharge material that can make the higher level all feeds the further fine grinding of subordinate's fine grinding device, the opposite side with mill iron above the drive roll of next stage fine grinding device is provided with slideway.

The schematic diagram of three grades of atomizer mills that Fig. 1 designs for the utility model.

The front view of three grades of atomizer mills that Fig. 2 designs for the utility model.

Fig. 3 is the A-A cutaway view of Fig. 2.

Fig. 4 is the B-B cutaway view of Fig. 2.

The side view of three grades of atomizer mills that Fig. 5 designs for the utility model.

Fig. 6 is the C-C cutaway view of Fig. 2.

Be further described below in conjunction with the embodiment and the effect thereof of accompanying drawing the atomizer mill of the utility model design.

Fig. 1 is the structure principle chart of three grades of atomizer mills of the utility model design.It is made up of the identical fine grinding device of three covers, and every cover fine grinding device comprises drive roll 1, and with the mill iron 2 that drive roll roller wall is close to, the universal head 3 and the hold down gag 4 of mill iron one side are formed.Treat that grind materials adds the back by funnel and be expelled to next stage fine grinding device after grinding between drive roll and the mill iron.

Fig. 2,3,4, the 5th is by the front view of three grades of atomizer mills of this structural principle design.It is made up of three identical cover fine grinding devices of vertically disposed structure.Every cover fine grinding device comprises the stereochemical structure frame, is installed in the drive roll on the stereochemical structure frame, mill iron and the power section be close to drive roll roller wall.

In first order fine grinding device, also can add charging hopper.The stereochemical structure frame is by at a distance of two fan parallel vertical walls 6 certain intervals, that fastened as one by row's bolt 5, form with outwardly directed two bindings 7 and the machine underframe that weld at an angle of 90 the wall bottom, tighten up plate 7 and link into an integrated entity with bolt with the machine underframe.The front portion is mainly used in the supportive body structure, and the rear portion is a motor bed-plate.The transmission mechanism of single-stage atomizer mill can adopt belt transmission, with three O type belts power is transferred to agent structure between motor small belt pulley and the main body big belt pulley.Three cover fine grinding devices can be provided with motor separately, also can form the in-phase synchronization rotation through belt and chain drive by same motor.

What provide among Fig. 4 is exactly a kind of kind of drive in back, and its power is passed to upper and lower level drive roll by intermediate calender rolls by chain drum 15 and chain again by the drive roll 14 of motor 29 one-level in the middle of belt pulley 13 and belt are passed to, and forms synchronously with rotating.

Drive roll is one of critical piece in the fine grinding device, and it is by roller skin 8, and roll shaft 9, two cover bearing and bearing blocks 10 reach chain drum 11 and form.The 8 general available wear-resisting rich chromium cast iron cast forms of roller skin, roller skin two ends are welded with support disk 12, and roll shaft 9 is packed in the support disk centre bore, use bolted, make roller skin 8 and roll shaft 9 form one.Each is connected roll shaft 9 two ends with wall 6 with bearing block 10 with a cover bearing, makes back, drive roll location free to rotate.One end of roll shaft is equipped with chain drum 11, to accept the power that chain transmits.

Mill iron is another critical piece in the fine grinding device, and it moves the effect of playing fine grinding with drive roll.It is formed by mill retort stand 16 with the mill iron plate 17 that support fuses.

Mill retort stand and mill iron plate can be overall structures, also can be package assemblies.Because mill iron is vulnerable part at work, for the ease of changing and save quality material, usually adopt package assembly, the mode of most convenient is to open the elongated slot of a buckle in mill front, retort stand lower end, in dress mill iron plate 17 insertion grooves, when needing to change, can easily the mill iron plate be taken out and install new mill iron plate from support.Center, mill retort stand upper end is connected with universal head, and spring attachment is equipped with in its lower end.

Owing to error may occur in processing of other part and installation process, and wearing and tearing in the course of the work all can make between the plane of grinding iron and the drive roll roller wall and produce nonparallelism, thereby influence the fine grinding effect of material.

At the upper and lower side that grinds iron universal head being set respectively then can make automatic adjustment of mill iron contact with drive roll roller keeping parallelism with spring attachment.In general, about can realizing, the universal head of left-right rotation all can be used for this device, but because the nonparallelism that is produced is less, simultaneously for reducing cost, can adopt the universal head structure shown in Fig. 2 and Fig. 3.It is by lateral shaft 18, swinging mounting 19 up and down, left-right rotation support 20, and perpendicular pin 21 is formed.Swinging mounting 19 is installed in the centre position of lateral shaft 18 up and down, is slidingly matched between the two, and swinging mounting 19 can freely rotate around lateral shaft 18 up and down.Lateral shaft 18 is fixed between the wall of machine body.Left-right rotation support 20 ends with holes link to each other with swinging mounting up and down with perpendicular pin 21, and form and be slidingly matched, and the other end is connected with bolting with the centre position, upper end of grinding retort stand 16.The mill retort stand of being furnished with this universal head can be realized respectively rotating up and down about perpendicular pin 21 and lateral shaft 18 are done.

Spring attachment comprises: 23, two top bolts 24,27 of 22, two latch brackets of two springs, and top bolt holder 25.Top bolt holder 25 is fixed on the wall 6 of stereochemical structure frame, and capping 26 is equipped with at two ends, to prevent holder 25 displacements.Two top bolts 24,27 1 ends are screwed in respectively in the screwed hole of the bolt holder left and right sides, top, the other end is adaptive with latch bracket 23 1 ends respectively, spring 22 is installed between latch bracket 23 and the mill retort stand 16, turning top bolt 24 can make top bolt 24 with respect to top bolt holder 25 action that moves forward and backward, thereby promote or the pulling spring, in order to adjust pressure to mill retort stand 16.Since top bolt and spring be about two covers be provided with, can be respectively to pressurization simultaneously about mill retort stand lower end, and universal head by installing in the middle of the mill retort stand upper end, just can make mill iron automatically adjustment contact with drive roll roller wall keeping parallelism.

For the levigate less demanding powder of material, the atomizer mill that can use a cover fine grinding device to form.When requiring powder thin, as less than 0.5 millimeter the time, can adopt two covers, the multistage atomizer mill that three covers or more covers are formed.The structure of every cover fine grinding device is basic identical, is vertical setting, and the axis of each drive roll is parallel to each other, but not on same vertical plane, and the charging aperture of next stage fine grinding device is roughly at the inferoanterior of upper level discharging opening.

For the discharge material that makes higher level's fine grinding device all feeds subordinate's fine grinding device, above the drive roll of subordinate's fine grinding device, be provided with slideway 28 with mill iron phase offside, the length of slideway 28 is basically with the drive roll appearance etc., and is fixed on the wall.

When needing the fine grinding powder, to treat that grind materials is added by funnel, enter by drive roll and mill iron plate and be close to the charging fine grinding district that the back forms, in the continuous rotating process of driving shaft, the abrasive material for the treatment of in this district is compelled to by drive roll with mill being close to contact portion of iron plate and by milling, discharge downwards by being close to contact portion simultaneously, finish a fine grinding.Discharge powder through a fine grinding falls into second level fine grinding device, repeats the fine grinding action identical with the first order, makes powder finish fine grinding for the second time ...The atomizer mill that is provided with slideway 28 can prevent effectively that the discharge material of upper level from not entering next stage fine grinding device and falling into bottom finished product powder, and causes the irregular situation of product granularity to take place.

Through work after a while, when the mill iron plate has certain wearing and tearing, can be by tightening the pressure that top bolt 24 comes regulating spring 22, to guarantee the fine grinding effect.

Adopt 150 millimeters in roller footpath, the drive roll that roller is long 200 millimeters, three grades of atomizer mills that power of motor is 7.5 kilowatts do not comprise 0.6 ton of the atomizer mill deadweight of motor, and during 8 millimeters of maximum feeding granularities, a marker size is less than 0.5 millimeter, and per hour treating capacity is greater than 4 tons.If adopt conventional ball mill, will reach same effect, then need motor, so energy-saving effect is very obvious with 55 kilowatts.Because atomizer mill weight of the present utility model is little, operation principle is different from traditional ball mill, therefore install and use and do not need big support and ground, so migration is convenient, and traditional ball mill be will reach same effect the time, and must have an appointment 1.5 meters ground support of its equipment is not only consuming time, expend materials such as cement, and equipment inconvenience migration.Being fit to industry powder processing such as mine, cement, chemical industry, building materials uses.

Claims

1, a kind of atomizer mill that grinds body, support and power section that comprises is characterized in that:

[1] described atomizer mill is by more than the cover, and vertically the fine grinding device that is provided with is formed,

[2] the described support that respectively overlaps in the fine grinding device is the stereochemical structure frame, and described mill body is the mill iron that is installed in the drive roll on the stereochemical structure frame and is close to drive roll roller wall,

Described stereochemical structure frame by at a distance of certain intervals, by the wall 6 of the fastening all-in-one-pieces two fan parallel vertical of row's bolt 5, outwardly directed two that weld at an angle of 90 with the wall bottom tighten up plate 7 and machine underframe and form, tightening up plate 7 links into an integrated entity with bolt with the machine underframe

Described drive roll is by roller skin 8, and roll shaft 9, two cover bearings and bearing block 10 are formed, and roller skin 8 and roll shaft 9 fuse, be connected with wall with bearing block by the bearing that is arranged on the roll shaft two ends,

The setting that recedes of described mill iron, it is made up of mill retort stand 16 and mill iron plate 17, the plane and parallel being close to of drive roll roller wall of mill iron plate 17, universal head is equipped with in the center on the described mill iron, and spring attachment is equipped with in the lower end.

2, by the described atomizer mill of claim 1, it is characterized in that, described universal head comprises lateral shaft 18, swinging mounting 19 up and down, left-right rotation support 20, perpendicular pin 21 is formed, described swinging mounting 19 up and down is installed in the centre position of lateral shaft 18, both are slidingly matched, lateral shaft 18 is fixed between the wall, and described left-right rotation support 20 ends with holes link to each other with swinging mounting up and down with perpendicular pin 21, and formation is slidingly matched, its other end is connected with the centre position, upper end of mill retort stand 16, described spring attachment comprises 23, two top bolts 24 of 22, two latch brackets of two springs, 27 and top bolt holder 25, described top bolt holder 25 is fixed on the wall 6, and there are 26, two top bolts 24 of capping at two ends, an end of 27 is screwed in respectively in the left and right sides screwed hole of bolt holder both sides, top, the other end is adaptive with an end of two latch brackets 23 respectively, and two springs 22 are installed in respectively between spring 23 and the mill retort stand 16.

By the described atomizer mill of claim 2, it is characterized in that 3, described mill retort stand 16 and mill iron plate 17 are package assembly, there is the elongated slot of a buckle in front, said mill retort stand 16 lower end, and described mill iron plate 17 inserts in the elongated slot.

4, by the described atomizer mill of claim 3, it is characterized in that described atomizer mill is three grades of atomizer mills, it is made up of the 3 fine grinding devices cover same structures, that vertically be provided with, above the drive roll of next stage fine grinding device with grind the iron phase offside and be provided with slideway 28.

5, by the described atomizer mill of claim 4, it is characterized in that, described power section comprises motor and transmission mechanism, described transmission mechanism comprises belt transmission and chain gear transmission, motor is the driving shaft of one-level in the middle of belt transmission is passed to power, again by the chain drum and the upper and lower level of the chain drive drive roll of the middle driving shaft other end.