CN2399096Y

CN2399096Y - Super-fine grinder

Info

Publication number: CN2399096Y
Application number: CN 99254698
Authority: CN
Inventors: 王继忠; 张建华; 庞俊峰
Original assignee: CHANGCHENG MINE MACHINERY PLANT XINXIANG CITY HENAN PROV
Current assignee: CHANGCHENG MINE MACHINERY PLANT XINXIANG CITY HENAN PROV
Priority date: 1999-12-02
Filing date: 1999-12-02
Publication date: 2000-10-04
Anticipated expiration: 2009-12-02

Abstract

The utility model relates to a super-fine grinder, which a grinder cylinder body, a material inlet end hollow shaft, a material outlet end hollow shaft, a separated plate, a grinding body, and a sieving barn separating device. The utility model is characterized in that the sieving barn separating device is provide with a circular grid guide device, and the structure is that an outer surface of an inner ring is evenly distributed with axial side plates along circumference. An inner ring is divide into grids, and the number of the grid is two times than the number of the screening, and a sloping plate is arranged between two side plates of each grid. The sloping directions of the sloping plates of contiguous grids are opposite, and the side plates of the inner ring is respectively connected with a grid plate and a blind plate. Coarse materials of the screening sieve can smoothly pass through a material guide device and are conveyed to a front barn to be repeatedly ground. The utility model avoids the accumulation of the screening sieve and has high screening efficiency.

Description

A kind of Super-fine grinder

The utility model relates to a kind of grinding machine, is specially adapted to material is carried out the Super-fine grinder of fine-grinding.

As everyone knows, in many industries such as building materials, metallurgy, chemical industry, need carry out fine-grinding, still, use general grinding machine after being milled to certain fineness, tend to occur the sizing aggregation phenomenon, influence the operate as normal of grinding machine material.This phenomenon is especially serious in the grinding of cement, and its main cause is to be milled to specific area above 3400CM ²When/g was above, more serious gathering, glue and roll into a ball a phenomenon will appear in cement in mill, hindered the carrying out of fine-grinding, causes the pulverizing cement unit power consumption to rise rapidly, damages grinding machine etc.

CN85106781 discloses a kind of pulverizer for fine powder technology, solved with one-level open the stream Super-fine grinder can realize the grinding portland cement time specific area can reach 5500cm ²/ g, during pulverizing flyash clinker-less cement, specific area can reach 7000-8000cm ²The problem of/g.But, this Super-fine grinder returns discharging to the coarse fodder on the screening sieve to little storehouse, it is the castor hole discharging of taking close grinding machine center on the overflow grate plate, fines through the screening sieve is gone into second storehouse by dumping pit and the orifice flow on the blind plate on the double-deck arc bolter side plate, and the distinct disadvantage of this structure is to have only the coarse fodder that is drawn off when quilt to collect on compass screen surface when depositing certain altitude, just can return preceding storehouse, this discharging structure causes the collection of material to deposit, and causes material discharging in grinding machine not smooth, influences screening efficiency.

The purpose of this utility model provide a kind of the thickness material all can be drawn off smoothly and do not collect the Super-fine grinder deposited,

Task of the present utility model is to realize like this, this Super-fine grinder, it comprises grinding mill barrel, the feed end hollow shaft, the discharge end hollow shaft, partition panel, abrasive body and second, there is one between three storehouses by grate plate, the screening partition device for barn that sieve bend sub-sieve and blind plate are formed, it is characterized in that: in the screening partition device for barn an annular grid drop guide is arranged, its structure is to be uniformly distributed with axial lateral plate along the circumference on the outer surface of interior ring, interior ring is separated into the grid that is twice in screening sieve number, one swash plate is arranged between the biside plate of each grid, the incline direction of swash plate is opposite in the adjacent grid, and the side plate on the interior ring is connected with blind plate with the grate plate that each sieves in partition device for barn respectively.

The utility model is owing to be provided with annular grid drop guide, the coarse fodder that screening is sieved can be sent into preceding storehouse by drop guide swimmingly and repeat to grind, avoided the collection of coarse fodder on the screening sieve to deposit, then sent into the storehouse, back swimmingly from another passage of grid drop guide through the fines of screening.Therefore, the utility model compared with prior art has the high advantage of screening efficiency.

Fig. 1 is the structural representation of a kind of Super-fine grinder of the utility model.

Fig. 2 is the structural representation of screening partition device for barn.

Fig. 3 is the B-B profile of Fig. 2.

Fig. 4 is the structural representation of annular grid drop guide.

Fig. 5 is that the A of Fig. 4 is to partial sectional view.

Drawing explanation: 1. partition panel 2. grate plates 3. annular grid drop guide 4. sieve bend sub-sieves 5. blind plates 6. grinding mill barrels

Now embodiment of the present utility model is described further in conjunction with above accompanying drawing.Be provided with partition panel 1 in the grinding mill barrel 6, be provided with a screening partition device for barn between second and third storehouse, it includes grate plate 2, sieve bend sub-sieve 4 and blind plate 5 and forms.In the screening partition device for barn, an annular grid drop guide 3 is set, its structure is to be uniformly distributed with side plate along the circumference on the outer surface that encircles in, interior ring is divided into several grid, the grid number for two cloth of screening sieve number doubly, one swash plate is arranged between the biside plate of each grid, the incline direction of swash plate should be opposite in the adjacent grid, and the grid of storehouse guide should be relative with the screen cloth upper space of screening sieve forward in the drop guide, and the screen cloth lower space guide grid adjacent with above-mentioned guide grid is relative.The side plate of annular grid drop guide is connected with blind plate with grate plate.Enter the sieve bend sub-sieve through the material after grinding through the castor hole of grate plate, thick material after the screening can enter Qian Cang from annular grid drop guide at any time, grind, and the fines after the screening is sent into the storehouse, back by annular grid drop guide, the realization coarse fodder does not collect on the screening sieve to be deposited again.

Claims

1, a kind of Super-fine grinder, it comprises grinding mill barrel, the feed end hollow shaft, the discharge end hollow shaft, partition panel, abrasive body and second, there is one between three storehouses by grate plate, the screening partition device for barn that sieve bend sub-sieve and blind plate are formed, it is characterized in that: in the screening partition device for barn an annular grid drop guide is arranged, its structure is to be uniformly distributed with axial lateral plate along the circumference on the outer surface of interior ring, interior ring is separated into the grid that is twice in screening sieve number, one swash plate is arranged between the biside plate of each grid, the incline direction of swash plate is opposite in the adjacent grid, and the side plate on the interior ring is connected with blind plate with the grate plate that each sieves in partition device for barn respectively.