CN101549319A

CN101549319A - Circulating grinding micropulverizer

Info

Publication number: CN101549319A
Application number: CNA2008100902560A
Authority: CN
Inventors: 李宪章
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-03-31
Filing date: 2008-03-31
Publication date: 2009-10-07
Anticipated expiration: 2028-03-31
Also published as: CN101549319B

Abstract

The invention relates to a circulating grinding micropulverizer which is mechanical equipment for performing the micro-fine grinding to harder materials. The invention uses the circulating grinding micropulverizer to replace the old-style tube mill and the old-style globe mill. The technical principle of the circulating grinding micropulverizer is as follows: the materials are ground in a front bin of a cylinder body and then are filtered, and filtered small materials enter an intermediate bin for being fine-ground or discharged out of the micropulverizer through a micropulverizer-tail discharging device. Big materials on a mesh screen are discharged through a discharging device on the circumference of the cylinder body, enter into a circulating feed back pipe outside the cylinder, are sent to a front feed back device in front of the bin following the rotation of the cylinder and enter into the bin for being ground again, thereby ensuring the uniformity of material grains discharged out of the micropulverizer or materials entering a bin at the lower section. The invention simplifies the process, saves the investment, reduces electricity consumption, and improves the equipment-hour yield. The new technology can also be applied to the technology improvement of the old-style mill used at present to lead micro-fine grinding operation process and equipment to realize the technical progress.

Description

Circulating grinding micropulverizer

Technical field:

Described circulating grinding micropulverizer is to be applied in industries such as China's building materials, mine, electric power, the harder objuct material is carried out the plant equipment of fine grinding operation.As the cement manufacturing be used for lime stone grinding, burn till grog and add the composite material grinding and become finished cement.Mine ore dressing factory sorts the ore fine grinding to upgrade.The power plant fully so burns levigate being convenient to of lump coal.Described micron mill is to replace the tube mill that uses on the present market, the advanced micropowder grinding machinery equipment of ball mill.

The state of the art: at present, in the old-fashioned tube mill that uses on the market, the rotating cylinder of ball mill, all be to become, separate with grate plate between each storehouse by a storehouse or a plurality of storehouses row.Important technological parameters is to adapt to the milling equipment of grinding material finish fineness about 80 microns.It feeds the mode of material the tube mill of prior art, ball mill, is that charging gear from front end quill shaft position feeds difficult mill, the easy various mixed material of mill, granule size inequality.Material is worn into fine grained gradually and is discharged outside the mill be subjected to the impact and grinding of abrasive body in grinding mill barrel after when mobile from front to back.Its shortcoming is: the material thickness inequality behind the grinding, and yield rate is low, and needing increases the external classification device processes.Design many, complex process of equipment needed thereby during grinding process, investment are big.The tube mill that these configurations form, ball mill are for the supporting very incompatibility of at present new grinding process design.The material finish fineness requires about 40 microns behind its grinding of material grinding process equipment of existing design.Because the variation of grinding material finish fineness, old-fashioned tube mill can not satisfy the requirement of existing micro mist fine grinding.Technical solution of the present invention is to adopt circulating grinding micropulverizer to replace old-fashioned tube mill, ball mill.On the basis of having adopted grinder rolling bearing and a kind of new quill shaft device new technology, invent grinding machine self and realized circulation grinding process device, can be applied on the tube mill, ball mill in a storehouse or a plurality of storehouses.Reached the good action that reduces power of motor consumption and improve the grinding material unit-hour output.

Technology contents:

The know-why of the circulation grinding of described micron mill is, material carries out from the preceding storehouse of cylindrical shell behind the grinding when entering into next storehouse, or single storehouse grinding machine all taked material is carried out method for screening before mill tail discharge, and sieve small particles material down enters into down storehouse continuation fine grinding.If storehouse mill is then discharged outside the mill by mill tail drawing mechanism.Large granular materials is discharged by the discharge device on the cylindrical shell circumference on the sieve, enter into the pipe material that loops back that is installed on the cylindrical shell outside, sent back to the front end feeding back device and enter into before the storehouse or carry out grinding again in the preceding storehouse along with the rotation of cylindrical shell, guaranteed to enter the material particles uniformity in next storehouse of cylindrical shell.Or material particles uniformity and average fineness that single storehouse grinding machine is discharged at the mill tail all are improved largely.

Old-fashioned tube mill is used for the operation of grinding micro mist, on market, use all think the power consumption height, yield poorly, the performance of enterprises is poor.After adopting circulating grinding micropulverizer of the present invention, when the grinding system technology of design factory, the material that just can remove the grinding machine body exterior selects powder equipment, thickness grading equipment, and equipment such as supporting lifting, conveying.Reduce investment outlay, simplify technological process, make fine grinding operation technology and equipment realize technological progress.Reached than old-fashioned tube mill reduction work power consumption, mill tail discharging uniform particles, the fineness index is stable.Increase substantially unit-hour output.This new technology also can be applied in the technological transformation of the old-fashioned grinding machine in now just using, and makes old-fashioned grinding machine reach the technique effect of micron mill equally.

Embodiment

Embodiment one: described micron mill (Fig. 1), it is to drive reductor (2) by motor (1), reductor (2) drives pinion (3), pinion (3) drives gear wheel (4), gear wheel (4) is installed on the grinding machine rotating cylinder structure (5), grinding machine rotating cylinder structure (5) two ends are by being equipped with two " U " type rolling bearing pedestals (6), and rolling bearing pedestal (6) is installed on the concrete pedestal.Realize the assembling of complete machine.

Embodiment two: grinding machine revolving structure (Fig. 2) is the charging gear (1) by front end quill shaft position, feed end quill shaft (2), feeding back device (3) before the mill, the cylindrical shell outside loop back pipe material (4), compartment grate plate (5), discharge device (6) on sieve powder device and the circumference, two partition device for barn (7), cylindrical shell (8), shell liner are consumable accessory (9), discharge end quill shaft (10), main bearing seat (11), discharge device be installed in the mill tail (12, formed a grinding machine revolving structure cylindrical shell.

Description of drawings

Fig. 1: be the ball mill general assembly drawing.Form by parts 1 motor, parts 2 reductors, parts 3 pinions, parts 4 gear wheels, parts 5 rotating cylinder structures.

Fig. 2: grinding machine rotating cylinder structure chart.Be charging gear (1) by front end quill shaft position, feed end quill shaft (2), feeding back device (3) is as Fig. 3 before the mill, the cylindrical shell outside loop back pipe material (4) as Fig. 5, compartment grate plate (5), the discharge device (6) on sieve powder device and the circumference be as Fig. 4, two partition device for barn (7), cylindrical shell (8), shell liner is consumable accessory (9), discharge end quill shaft (10), main bearing seat (11), discharge device be installed in the mill tail (12, formed a grinding machine revolving structure cylindrical shell.

Fig. 3: front end feeding back device

Fig. 4: the discharge device on cylindrical shell inner sieving mechanism and the circumference

Fig. 5: the cylindrical shell outside loop back pipe material.

Claims

The know-why of described circulating grinding micropulverizer is; Before material is entering into next storehouse or mill tail after grinding is carried out in preceding storehouse from cylindrical shell and discharges material, material is screened.The large granular materials that filters out by the discharge device that the cylindrical shell circumference is provided with, is entered the pipe material that loops back that the cylindrical shell outside is provided with, and the feeding back device that is provided with by a storehouse front end is got back to the mode and the device that repeat to grind before first storehouse again.This new technology also can be applied in the technological transformation of the old-fashioned grinding machine in now just using.To reach the good purpose of the mixed material of different hardness being carried out fine grinding.