CN201140087Y

CN201140087Y - Series connected roller mill

Info

Publication number: CN201140087Y
Application number: CNU200720094825XU
Authority: CN
Inventors: 于本良
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-21
Filing date: 2007-12-21
Publication date: 2008-10-29
Anticipated expiration: 2017-12-21

Abstract

A tandem type roller mill comprises an upper cover, a housing, a pressure device, a discharge outlet, a speed reducer and a spindle, wherein the center of the upper cover is equipped with a feed inlet, the lower end of the spindle is equipped with a discharge unit, and the spindle is connected with an output shaft of the speed reducer. The housing is divided into an upper plate and a lower plate, wherein a middle plate connected on the spindle is disposed between the upper plate and the lower plate, grinding rollers are respectively positioned between the upper plate and the middle plate, and between the middle plate and the lower plate, tandem shafts are arranged between the grinding rollers, two ends of the tandem are fixed with an annular retaining frame, and a collecting cavity is formed between the lower plate and the housing bottom. The tandem type roller mill has the advantages that the effect is high and energy-saving effect is good because material is in directly rolled and ground by the grinding rollers continuously, the sealing difficulty and the manufacture cost are reduced because the mill has no bearing, and final grinding is achieved and system investment is reduced because the roller mill can be used in series.

Description

Tandem roller mill

Technical field:

The utility model relates to mineral grinding processing unit (plant), especially relates to a kind of tandem roller mill.

Background technology:

The mineral grinding is the important step in mineral products processing and the cement production process, affects energy consumption and cost, and therefore, people are seeking more energy-efficient milling equipment always.At present, the capital equipment that the mineral grinding uses is tube mill and vertical grinder, and wherein: tube mill adaptability is strong, and cost is low, but power consumption is high, and effective power has only about 5% to be used for the mineral grinding, and all the other all change into heat energy and noise is wasted.Vertical grinder found application on large project in recent years, and to compare energy-saving effect remarkable with tube mill, but because manufacture difficulty is big, difficult in maintenance, and cost is too high, had influenced to promote and use.

The utility model content:

The utility model aims to provide a kind of efficient height at the too high and too high defective of vertical grinder cost of tube mill power consumption, good energy-conserving effect, and the tandem roller mill that cost is low is to overcome the defective that background technology exists.

The technical solution of the utility model is: comprise loam cake, housing, pressue device, feed opening, decelerator, main shaft, the loam cake center is provided with feeding mouth, the lower end of main shaft is provided with removal device, main shaft is connected with the output shaft of decelerator, layering is provided with dish and lower wall in the housing, be provided with the mid-game that is connected on the main shaft between last dish and the lower wall, be respectively equipped with grinding roller between last dish and mid-game and mid-game and the lower wall, be provided with series shaft in the middle of the grinding roller, the series shaft two ends are fixed with annular retainer, form the chamber that gathers materials between lower wall and the housing bottom.

The utility model has the advantages that: material is by grinding roller directly roll extrusion continuously, efficient height, good energy-conserving effect; Do not have bearing in the mill, reduced the sealing difficulty, reduce cost; The use of can connecting realizes whole grinding, the investment of minimizing system.

Description of drawings:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the cutaway view along A-A line among Fig. 1.

The specific embodiment:

With reference to Fig. 1, Fig. 2, the utility model loam cake 10, housing 11, pressue device 2, feed opening 13, decelerator 14, main shaft 15, loam cake 10 centers are provided with feeding mouth 1, the lower end of main shaft 15 is provided with removal device 12, main shaft 15 is connected with the output shaft 16 of decelerator 14, layering is provided with dish 9 and lower wall 7 in the housing 11, last dish 9 usefulness keys and housing are slidingly connected, lower wall 7 is fixed on the housing, form the chamber 8 that gathers materials between lower wall 7 and housing 11 bottoms, be provided with between last dish 9 and the lower wall 7 with key and be slidingly connected at mid-game 5 on the main shaft 15, be respectively equipped with some grinding rollers 3 between last dish 9 and mid-game 5 and mid-game 5 and the lower wall 7, be provided with series shaft 4 in the middle of the grinding roller 3, series shaft 4 two ends are fixed with annular retainer 6, form a plurality of grinding roller annular tandem working states.

The course of work: material is fed grinding machine by feeding mouth 1, reducer output shaft 16 drive main shafts 15 and mid-game 5 simultaneously rotated together, material is under action of centrifugal force, enter the last grinding chamber that forms between dish 9 and the mid-game 5, on, down two-layer grinding roller 3 last coil 9 and the pressure of pressure apparatus 2 under with mid-game on, following card closely contacts and produces friction, around main shaft, in last dish and mid-game, revolution in the cannelure between lower wall and the mid-game, material is carried out continuous roll extrusion and pulverizes, material after the pulverizing is discharged from grinding chamber under action of centrifugal force, enter in the storage bin 16 that forms between housing and the mill, after material surpasses the following grinding chamber of lower wall and mid-game formation downwards, under material self pressure, enter down grinding chamber, continue by the continuous roll extrusion grinding of grinding roller.Through the material of grinding, under the storage bin material pressure, be pushed out grinding chamber down, enter in the chamber 8 that gathers materials, and scraped to feed opening 13 back discharges by removal device 12.If do not reach the requirement of grinding, can increase the grinding chamber number of plies, form the work structuring of multilayer series connection, till reaching requirement, series shaft 4 and retainer 6 remain unchanged the distance between the grinding roller, form the continuous roll extrusion of tandem.

Claims

1, a kind of tandem roller mill, comprise loam cake (10), housing (11), pressue device (2), feed opening (13), decelerator (14), main shaft (15), loam cake (10) center is provided with feeding mouth (1), the lower end of main shaft (15) is provided with removal device (12), main shaft (15) is connected with the output shaft (16) of decelerator (14), it is characterized in that: the interior layering of housing (11) is provided with dish (9) and lower wall (7), be provided with the mid-game (5) that is connected on the main shaft (15) between last dish (9) and the lower wall (7), be respectively equipped with grinding roller (3) between last dish (9) and mid-game (5) and mid-game (5) and the lower wall (7), be provided with series shaft (4) in the middle of the grinding roller (3), series shaft (4) two ends are fixed with annular retainer (6), form the chamber (8) that gathers materials between lower wall (7) and housing (11) bottom.