CN101549319B

CN101549319B - Circulating grinding micropulverizer

Info

Publication number: CN101549319B
Application number: CN2008100902560A
Authority: CN
Inventors: 李宪章
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-03-31
Filing date: 2008-03-31
Publication date: 2012-07-18
Anticipated expiration: 2028-03-31
Also published as: CN101549319A

Abstract

The invention relates to a circulating grinding micropulverizer comprising an electromotor, a reducer, a small gear, a big gear and a revolution barrel, wherein the revolution barrel inlcudes a feeding device, a hollow shaft at a feeding end, a feed back device in front of the grinder, a circulating feed back pipeline out of the barrel, a partition comb board, a sieving device, a discharging device on the periphery, a double partition device, the barrel, a barrel liner plate quick-wear part, a hollow shaft at the discharge end, a main bearing seat, a discharging device, and a grinder tail. The method for grinding micropulverizer includes the steps of: when the material is grinded from a barrel front bin and enters the next bin or the grinder tail before the material is discharged, screening the material, the screened big particle material, through the discharging device on the periphery, entering the circulating feed back pipe out of the barrel, pushing the big particle material rotating along the grinder barrel to the feed back device in front of the grinder arranged at the front of one bin along the grinder barrel, then returning the front end of the one bin through the feed back device arranged in front of one bin, and realizing a re-grinding for the big particle from the front of one bin to one bin tail.

Description

Circulating grinding micropulverizer

Technical field:

Said 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.Said 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 the comb 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, be that the charging gear from front end quill shaft position feeds difficult mill, be prone to mill, the uneven various mixed material of granule size.Material is worn into fine grained gradually and is discharged outside the mill after in grinding mill barrel, receiving the impact and grinding of abrasive body when moving from front to back.Its shortcoming is: the material thickness behind the grinding is uneven, 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 scheme 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 said 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 through mill tail drawing mechanism.Large granular materials is discharged through 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 get into 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 think that all power consumption is high, 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.During also can being applied in and now just using, this new technology in the technological transformation of old-fashioned grinding machine, make old-fashioned grinding machine reach the technique effect of micron mill equally.

Embodiment

Embodiment one: said micron mill (Fig. 1); It is to drive reductor (2) by motor (1); Reductor (2) drives pinion (3), and pinion (3) drives gear wheel (4), and 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; Cylindrical shell is outside loops back pipe material (4), compartment grate plate (5), the 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 like Fig. 3 before the mill, and what cylindrical shell was outside loops back pipe material (4) like Fig. 5; Compartment grate plate (5), the discharge device (6) on sieve powder device and the circumference be like Fig. 4, 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.

Fig. 3: front end feeding back device

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

Fig. 5: cylindrical shell is outside loops back pipe material

Claims

1. the grinding method of a circulating grinding micropulverizer; This flour mill comprises motor, reductor, pinion, gear wheel and rotating cylinder; Rotating cylinder comprise feeding back device before charging gear, feed end quill shaft, the mill, cylindrical shell outside loop back discharge device, two partition device for barn, cylindrical shell, shell liner consumable accessory, discharge end quill shaft, main bearing seat, discharge device, the mill tail on pipe material, compartment grate plate, sieve powder device, the circumference; Before material is entering into next storehouse or mill tail after grinding is carried out in preceding storehouse from cylindrical shell and is discharging material; Material is screened, and the discharge device that the large granular materials that filters out is provided with through the cylindrical shell circumference gets into the pipe material that loops back that the cylindrical shell outside is provided with; Along with the rotation of grinding mill barrel is advanced into feeding back device before the mill that the front end in a storehouse is provided with large granular materials along grinding mill barrel; Feeding back device before the mill that is provided with through a storehouse front end is again got back to the front end in a storehouse, and large granular materials is realized before a storehouse, repeating to grind to a storehouse tail.