CN1043887A - Ring centrifugal grinding mill - Google Patents

Abstract

The ring centrifugal grinding mill that a kind of centrifugal force that is produced with the rotor disk revolution by the vertical installation of motionless cylindrical shell, stone roller ring pulverizes ore, be respectively corrugated surface and shiny surface, silencer cover to be evacuated, to draw the bearing pin that grinds ring be architectural features such as two sections butt joint to fall the step-like stone roller ring outer rim that goes up doffing lining and corresponding height thereof of tower, have that corase grind in small, broken bits, noise low (90dB), volume are little, unit volume productive rate height, energy consumption and the steel consumption is low, easy advantage such as dustproof, be widely used in raw material production divisions such as mining and metallurgy, building materials and light industry.

Description

Ring centrifugal grinding mill

The present invention is a kind of efficient comminution equipment that mining and metallurgy, building materials and some light industry raw material production division are ore and brittle material processing that is widely used in.

The rotating cylinder type ore mill of using for hundred coming year such as the production efficiency of equipments such as ball milling, rod milling of being spread out are low and power consumption is to cause one of high principal element of relevant primary industry processing cost with steel consumption height, the present situation of grinding attachment for a change, the fifties Soviet Union, West Germany and our country all once developed centrifugal ball milling (or rod milling) machine, all owing to unreasonable structure, fail to address the above problem

The present inventor has developed centrifugal hoop grinding machine (seeing 1980 " mine technology " total 62 phases for details, " development of centrifugal hoop grinding machine and production practices ") again at late nineteen seventies.Though this machine production efficiency height, steel power consumption consumption is lower, but owing to exists feed preparation unit size strict (must less than 25mm), traction to grind the easily broken and feed maldistribution of the bearing pin of ring and the big defectives such as (105d β) of operating noise fails extensively to use in industry.

The purpose of this invention is to provide hold concurrently energy, convenient disassembly, reliable, energy consumption steel of a kind of corase grind in small, broken bits and consume the efficient comminution equipment low, that noise is little.

For achieving the above object, the technical solution adopted in the present invention is:

Upper and lower tube lining inner chamber is the stairstepping of falling the tower, ripple tooth or smooth etc. special are all adopted according to the ground material granularity requirements in the outer garden of stone roller ring on epimere tube lining internal chamber wall and the respective heights, and smooth cylinder is all adopted in the outer garden of the stone roller ring on bottom tube lining internal chamber wall and the respective heights; Be convenient disassembly, the bearing pin that ring is ground in traction is by upper and lower two sections butt joints; Adopt spline to connect between each rotor disk and vertical pivot; For ore is evenly distributed on the working face, in top cover, add a butt garden tapered sleeve tube; Be evacuated in the silencer cover mezzanine space of top cover and tube lining outside, with isolated noise unofficial biography; Be the unhelpful abrasion of further lowering energy consumption and alleviating the tube lining, on the rotor disk edge, a triangular incision is cut away by each fanning strip lap-joint, card with grind ring contact site, upper and lower end face built-up welding specific alloy, make rotor disk become non-consumption part; Add the recirculated cooling water cover on the bearing block of vertical pivot, bearing running hot problem when grinding high-temperature material to solve.

Structure of the present invention such as Fig. 1 or shown in Figure 2 mainly comprise five parts such as transmission, rotor, cylindrical shell, support and top cover, now are respectively described below:

(1) running part

Upper shell inner chamber maximum gauge be less than or equal to 800mm small dimension this invention as shown in Figure 2, by the directly transmission of the belt pulley (1) of body upper; And diameter is greater than the big specification of 800mm, and this is invented as shown in Figure 1, by belt pulley-bevel gear transmission system (13) transmission of underpart.

(2) rotor portion

Rotor is made up of distribution plate (3), vertical pivot (11), rotor disk (9), stone roller ring (4) and (10) bearing pin parts such as (7).

The splined shaft of vertical pivot (11) by cantilever segment in turn gone here and there distribution plate (3) and some rotor disks (9) and dressed up rotor subject, each rotor disk is the alternate fanning strip of convex-concave and takes the knot one, the edge of its lap-joint all is cut into a subtriangular otch, rotor disk thickness is highly the same with the stone roller ring, each adjacent rotors dish forms a neutral gear, in three layers of each neutral gear of corresponding top cylinder lining (5), placing an outer garden respectively is the stone roller ring ripple flank of tooth or shiny surface (4); In each neutral gear of each layer of corresponding doffing lining (8), place a light face respectively and grind ring; The endoporus of above-mentioned each stone roller ring is all being pind down by a pair of bearing pin (7), the other end of bearing pin is inlayed respectively in the hole, garden that is inserted in the corresponding dish of rotor disk up and down edge, at bearing pin and the contact site that grinds ring garden cylinder, rotor disk and stone roller ring end face contact site difference build-up wear-resistant alloy.

(3) shell portion

Shell portion is made up of silencer cover (6), top cylinder lining (5) and doffing lining (8).

Silencer cover (6) is the vacuum interlayer housing that is welded into by steel plate, and its inner chamber tapering is fixing with the tube lining, so silencer cover double as cylindrical shell is used; It is stepped that upper and lower tube lining (5) and (8) inwall are down tower, and each ladder height equates with the height that grinds ring (4) or (10); Top cylinder lining (5) each ladder inwall is the ripple flank of tooth or shiny surface, and each ladder of doffing lining inwall is shiny surface.

(4) top cover and support part

Header field comprises top cover (2) or (12), (15) two critical pieces of butt garden tapered sleeve.Top cover plays a part different again because of the kind of drive is different, the top cover (12) of large-scale machine (shown in the figure one) only plays sealing and mine feeding bucket; The top cover (2) of small-sized machine (shown in Figure 2) is except that playing sealing machine chamber and mine feeding bucket effect, and double as supports the support effect of vertical pivot and cylindrical shell; Only type of belt drive special use as shown in Figure 1 of support (14), the inside of support have a sealing gear-box, and pedestal is evacuated sandwich shell.

Drawing reference numeral and symbol description

Fig. 1 is the large corporation schematic diagram of top cylinder lining maximum inner diameter of the present invention greater than belt pulley-bevel gear type of belt drive of 800mm;

Fig. 2 is the small-sized structural scheme of mechanism of top cylinder lining maximum inner diameter of the present invention less than the direct type of belt drive of belt pulley of (or equaling) 800mm;

Size specification person type of belt drive difference of the present invention, the structure of its comminution workpiece is the same, so A-A and the B-B section structure schematic diagram of Fig. 3, Fig. 4 while presentation graphs 1, Fig. 2.

Label name among the figure is called:

1-pulley concial disk, 2-minicomputer top cover, 3-distribution plate, 4-corrugated surface grind ring, 5-top cylinder lining, 6-silencer cover, 7-bearing pin, 8-doffing lining, 9-rotor disk, 10-light face stone roller ring, 11-vertical pivot, the large-scale machine top cover of 12-, 13-belt pulley-gear drive, the large-scale machinery bed of 14-, 15-butt garden tapered sleeve, 16-minicomputer special cooling water jacket thereof.

Symbolic representation among the figure:

→ expression ore deposit flow path direction; → → expression cooling water flow to; Ring or rotor rotation direction are ground in → expression.

The present invention's vertical pivot under motor drives drives rotor disk (9) and rotates by set direction, stone roller ring (4) and (10) produce centrifugal force with rotor disk around the vertical pivot revolution under the affecting of bearing pin (7), grind to encircle on the inwall that is pressed on tube lining (5) (8) under self centrifugal action and along wall and roll.Ore is fed by the mine feeding bucket of top cover (2) or (12), in butt garden tapered sleeve (15) and distribution plate (3) are sprinkled into gap between rotor disk and the tube lining equably; Along the backlash freedom dropping process, grind ring (4) and (10) with rolling of barrel and by pulverizing, fine ground through each layer.Finally discharge voluntarily by doffing lining end.

φ 680mm ring type disintegrator of the present invention is adopted by certain cement plant and certain ironworks, has replaced a φ 1000mm beating crusher and billiard ball mill respectively, and both are about 200,000 year economic benefit.Compare with conventional ball milling (rod milling), have feed preparation unit size big (can reach 50mm), the unit volume productive rate is high 50～60 times, and specific yield economize on electricity 30～40%, saving steel (iron ball) consumption are more than 95%, and cost only is about 1/3 of the identical ball mill of output; Running reliable (a month running rate reaches more than 90%), operating maintenance is convenient and time-saving, the low series of advantages such as (below 90d β) of operating noise.Its volume is little, is specially adapted to old factory and taps the potential and upgrade technologically.

Claims (7)

1, a kind of by top cover (2) or (12), rotor disk (9), grind the ring centrifugal grinding mill that ring (4) and (10), bearing pin (7), tube lining (5) and (8) and transmission device (1) or parts such as (13) are formed, it is characterized in that:

Have one to be inverted butt garden tapered sleeve (15) in the top cover of sandwich shell (2) or (12);

It is stepped that last doffing lining (5) and (8) internal chamber wall are down tower;

The stone roller ring (4) on last doffing lining (5) and (8) internal chamber wall and each respective heights and the outer garden of (8) are special;

Thickness is to be formed by the identical fanning strip overlap joint of convex-concave with grinding highly identical some in ring (4) and (10) to rotor disk;

Pining down a pair of bearing pin (7) butt joint of grinding ring (4) and (10) forms;

Silencer cover (6) is an interlayer of steel plate;

Bearing block adds and follows water pipe (16);

2, ring centrifugal grinding mill according to claim 1, it is characterized in that: stone roller ring (4) outer edge surface on top cylinder lining (5) internal chamber wall and the corresponding height all is processed as the line face of corrugated surface or shiny surface or similar dentation, and stone roller ring (8) outer edge surface of doffing lining (8) and corresponding height all is processed as shiny surface;

3, ring centrifugal grinding mill according to claim 1 is characterized in that: the alternate fanning strip lap-joint edge of the convex-concave of rotor disk (9) is cut into a subtriangular otch;

4, ring centrifugal grinding mill according to claim 3 is characterized in that: rotor disk (9) has antifriction alloy with contact site, the upper and lower end face built-up welding of grinding ring (4) and (10);

5, ring centrifugal grinding mill according to claim 1, it is characterized in that: the bearing pin (7) of two sections butt joint affects approximate ellipse garden, the cross section shape of grinding ring (4) or (10) part, and the other end of bearing pin is respectively garden axis of a cylinder neck and key is installed in the corresponding hole, garden, rotor disk edge up and down;

6, ring centrifugal grinding mill according to claim 5 is characterized in that: bearing pin (7) and stone roller ring (4) and (10) endoporus garden post contact portion build-up wear-resistant alloy;

7, ring centrifugal grinding mill according to claim 1 is characterized in that: top cover (2) or (12) and silencer cover (6) are the sandwich shells of vacuum.

Images