CN205797384U - A kind of embedded energy-efficient liner plate of split activity - Google Patents

Abstract

A kind of embedded energy-efficient liner plate of split activity, including the movable liner plate being layed on grinding mill barrel inwall and base plate, base plate is directly installed on grinding mill barrel, movable liner plate is fixed on grinding mill barrel after being fixedly connected on base plate, movable liner plate has work surface and joint face, the work surface of movable liner plate is overall in inverted U, and the upper center at inverted U has a flat bottomed recess, work surface split is symmetrical front working curved surface and rear working curved surface by flat bottomed recess, before during installation, working curved surface is positioned at the front of grinding mill barrel rotation direction, the joint face of movable liner plate is square convex surface, base plate includes upper and lower surface, the middle part of upper surface is provided with a connecting groove coordinated with square convex surface, base plate lower surface is set to the cambered surface suitable with grinding mill barrel contact surface.This utility model possesses good reasonably toss, dribbling ability, grinds work efficiency and improves, energy-efficient.

Description

A kind of embedded energy-efficient liner plate of split activity

Technical field

This utility model relates to a kind of power plant coal lining plate structure, and especially a kind of split activity is embedded energy-efficient Liner plate.

Background technology

Power plant coal, also known as low speed coal mill, is the capital equipment of thermal power plant coal dust preparation system, to various coals Charcoal carries out grinding operation.

Power plant coal is by coal crusher and wears into coal dust, it be dependent on abrasive media (steel ball) in cylinder to the shock of coal, The active forces such as extruding and grinding, make oarse-grained coal be milled into coal dust.

The inner surface cover type of coal pulverizer grinding mill barrel is provided with liner plate, and on the one hand liner plate plays the work of protection grinding mill barrel With, it is often more important that, liner plate also effectively combines with steel ball, jointly completes to clash into, extrude and grinding function.

The liner plate that existing coal pulverizer grinding mill barrel is used is W type wave liner plate, and this kind of W type wave liner plate simply can carry Steel ball in dynamic cylinder, but steel ball is unable to reach and required throws height, therefore, the grinding operation time of coal pulverizer grinding mill barrel Long, efficiency is low, and power consumption is big, and the usage amount of steel ball often increases, and the grinding mill barrel load of coal pulverizer gradually rises, from And making the electric current of coal pulverizer remain high, power consumption is substantially increased the most therewith.

Summary of the invention

In order to overcome the deficiencies in the prior art, this utility model provides a kind of embedded energy-efficient liner plate of split activity, This liner plate possesses good reasonably toss, dribbling ability, grinds work efficiency and improves, can reduce the ball load of coal pulverizer steel ball, reduces Coal pulverizer power consumption, energy-efficient.

This utility model solves its technical problem and the technical scheme is that the work including being layed on grinding mill barrel inwall Dynamic liner plate and base plate, base plate is directly installed on grinding mill barrel, and movable liner plate is fixed on grinding machine cylinder after being fixedly connected on base plate On body, movable liner plate has work surface and joint face, and the work surface of movable liner plate is overall in inverted U, and above inverted U Middle part there is a flat bottomed recess, work surface split is front working curved surface and rear working curved surface by flat bottomed recess, during installation before work Be positioned at the front of grinding mill barrel rotation direction as curved surface, the joint face of movable liner plate is square convex surface, base plate include upper surface and Lower surface, the middle part of upper surface is provided with a connecting groove coordinated with square convex surface, and base plate lower surface is set to and grinding mill barrel The cambered surface that contact surface is suitable.

Compare existing lining plate of coal grinder, a kind of embedded energy-efficient liner plate of split activity of the present utility model, be Its grinding mill barrel inwall has laid the energy-conservation liner plate being made up of movable liner plate and base plate, the following table mask of the base plate of this energy-conservation liner plate Having the cambered surface suitable with grinding mill barrel contact surface, base plate is directly installed on grinding mill barrel, can protect grinding mill barrel, make mill Machine drum body operationally alleviates by the abrasion of steel ball, extends the service life of grinding mill barrel, and meanwhile, movable liner plate is fixing connection It is fixed on after on base plate on grinding mill barrel, by joint face and the plate upper surface of the square convex surface of movable liner plate between them Connecting groove coordinate be connected, connect location simple and reliable；Owing to the work surface of movable liner plate is overall in inverted U, and at U The upper center of type has a flat bottomed recess, and work surface split is symmetrical front working curved surface and rear work song by flat bottomed recess Face, during installation before working curved surface be positioned at the front of grinding mill barrel rotation direction, front working curved surface and rear working curved surface make liner plate have There is good wear-resistant function, liner plate, steel ball and coal facies are collided mutually, impact, grind energy and be transformed into powder process point to greatest extent Coming up, the curved surface of the long length of front working curved surface and rear working curved surface self has elongated the rolling length of steel ball, thus improves The effect ground, the design of flat bottomed recess brings stronger takes ball ability, and the steel ball of major diameter can be driven to cook parabola fortune Moving, and the minor diameter steel ball automatically fallen can constantly be taken up by major diameter steel ball, dribbling quantity improves, the most ground The steel ball amount that journey uses can reduce, thus reduces power consumption, more energy-conservation；Additionally, because the work of middle movable liner plate Face split is symmetrical front working curved surface and rear working curved surface, so, work surface serious wear in the case of, permissible Movable liner plate symmetry upset, again can good effect, thus decrease investment, prolongation liner plate service life, investment reduction 40%.

Accompanying drawing explanation

With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.

Fig. 1 is the sectional view after this utility model one embodiment is installed.

In figure, 1, grinding mill barrel, 2, base plate, 3, lightening grooves, 4, clamp nut, 5, gasket seal, 6, connecting groove, 7, tight Fixing bolt, 8, front working curved surface, 9, flat bottomed recess, 10, rear working curved surface, 11, square convex surface.

Detailed description of the invention

For making the purpose of this utility model embodiment, technical scheme and advantage clearer, new below in conjunction with this practicality Accompanying drawing in type embodiment, is clearly and completely described the technical scheme in this utility model embodiment, it is clear that retouched The embodiment stated is a part of embodiment of the present utility model rather than whole embodiments.Based on the reality in this utility model Execute example, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, all belong to In protection domain of the present utility model.

Fig. 1 shows the structural representation of one preferred embodiment of this utility model, in a kind of split activity in figure The energy-conservation liner plate of embedded high-efficiency, including the movable liner plate being layed on grinding mill barrel 1 inwall and base plate 2, base plate 2 is directly installed on mill On machine drum body 1, movable liner plate is fixed on grinding mill barrel 1 after being fixedly connected on base plate 2, and movable liner plate has work surface and company Junction, the work surface of movable liner plate is overall in inverted U, and has a flat bottomed recess 9 in the upper center of inverted U, flat Work surface split is symmetrical front working curved surface 8 and rear working curved surface 10 by groove 9, during installation before working curved surface 8 be positioned at grinding machine The front of cylinder 1 rotation direction, the joint face of movable liner plate is square convex surface 11, and base plate 2 includes upper and lower surface, upper table The middle part in face is provided with a connecting groove 6 coordinated with square convex surface 11, and base plate 2 lower surface is set to and grinding mill barrel 1 contact surface Suitable cambered surface.

This utility model is to have laid, at its grinding mill barrel 1 inwall, the energy-conservation liner plate being made up of movable liner plate and base plate 2, should The lower surface of the base plate 2 of energy-conservation liner plate has the cambered surface suitable with grinding mill barrel 1 contact surface, and base plate 2 is directly installed on grinding machine On cylinder 1, grinding mill barrel 1 can be protected, make grinding mill barrel 1 operationally alleviate by the abrasion of steel ball, extend grinding mill barrel 1 In service life, meanwhile, movable liner plate is fixed on grinding mill barrel 1 after being stationarily connected on base plate 2, by activity between them The joint face of the square convex surface 11 of liner plate coordinates with the connecting groove 6 of base plate 2 upper surface and is connected, and connects location simple and reliable；By Work surface in movable liner plate is overall in inverted U, and has a flat bottomed recess 9, flat bottomed recess in the upper center of inverted U Work surface split is symmetrical front working curved surface 8 and rear working curved surface 10 by 9, during installation before working curved surface 8 be positioned at grinding mill barrel 1 The front of rotation direction, front working curved surface 8 and rear working curved surface 10 make liner plate have good wear-resistant function, by liner plate, steel Ball and coal facies collide mutually, impact, grind energy is transformed into powder process point to greatest extent and comes up, front working curved surface 8 and rear working curved surface 10 self the curved surfaces of long length have elongated the rolling length of steel ball, thus improve effect of grinding, the design of flat bottomed recess 9 Bring and stronger take ball ability, the steel ball of major diameter can be driven to do parabolic motion, and major diameter steel ball can be continuous Automatically the minor diameter steel ball fallen is taken up by ground, and dribbling quantity improves, and the steel ball amount that therefore process of lapping uses can reduce, from And reduce power consumption, more energy-conservation.

As a kind of improved design project of the present embodiment, the lower surface of described base plate 2 also has lightening grooves 3, lightening grooves 3 It is distributed on the position of the close edge of base plate 2.A kind of concrete lightening grooves 3 version be given in Fig. 1 is, this lightening grooves 3 It is the cell body of two both sides being symmetricly set on base plate 2 lower surface, with connecting groove 6 position as symmetrical centre, but does not limits In this, the concrete shape of lightening grooves 3 and quantity can be designed as required, not hinder the structural strength needed for base plate 2 For principle.So base plate 2 had both played the effect of protection grinding mill barrel 1, it is also possible to alleviate the weight of equipment.

In the present embodiment, described movable liner plate and base plate 2 are fixing even by several fastening bolts 7 in middle part It is connected on grinding mill barrel 1.This fastening means bed knife is strong, movable liner plate and base plate 2 uniform force, and connective stability is high.Its Described in fastening bolt 7, it is preferable that can use dormant bolt, after dormant bolt is installed, will not be convex from the surface installed Going out, thus without affecting the serviceability of liner plate, and the faying face at countersunk head is that bellmouth face coordinates, and so can make countersunk head Bolt is close to installing hole inner surface, tight, decreases the possibility from installing hole material leakage.

As further improvement of this embodiment design, be additionally provided with between described grinding mill barrel 1 and clamp nut 4 close Gasket 5, described gasket seal 5 uses bowl-type pad, and is also equipped with sealing between bowl-type pad and grinding mill barrel 1 Rubber cushion.Gasket seal 5 and seal gasket all play the effect of sealing, prevent the leakage of coal dust.

The above, be only preferred embodiment of the present utility model, and this utility model not does any pro forma limit System, every according to technical spirit of the present utility model, to simple modification any done by above example and equal change, all fall Within entering protection domain of the present utility model.

Claims (4)

1. the embedded energy-efficient liner plate of split activity, it is characterised in that include being layed on grinding mill barrel (1) inwall Movable liner plate and base plate (2), base plate (2) is directly installed on grinding mill barrel (1), and movable liner plate is fixedly connected on base plate (2) After be fixed on grinding mill barrel (1), movable liner plate has work surface and joint face, and the work surface of movable liner plate is overall in inverted U, And the upper center at inverted U has a flat bottomed recess (9), work surface split is symmetrical front work by flat bottomed recess (9) Make curved surface (8) and rear working curved surface (10), during installation before working curved surface (8) be positioned at the front of grinding mill barrel (1) rotation direction, live The joint face of dynamic liner plate is square convex surface (11), and base plate (2) includes upper and lower surface, the middle part of upper surface be provided with one with The connecting groove (6) that square convex surface (11) coordinates, base plate (2) lower surface is set to the arc suitable with grinding mill barrel (1) contact surface Face.

A kind of embedded energy-efficient liner plate of split activity the most according to claim 1, is characterized in that: described base plate (2) Lower surface also there is lightening grooves (3), lightening grooves (3) is distributed on the position of the close edge of base plate (2).

A kind of embedded energy-efficient liner plate of split activity the most according to claim 1 and 2, is characterized in that: described work Dynamic liner plate and base plate (2) are fixedly connected on grinding mill barrel (1) by several fastening bolts (7) at flat bottomed recess (9) position.

A kind of embedded energy-efficient liner plate of split activity the most according to claim 3, is characterized in that: at described grinding machine cylinder Being additionally provided with gasket seal (5) between body (1) and clamp nut (4), described gasket seal (5) uses bowl-type pad, and It is also equipped with seal gasket between bowl-type pad and grinding mill barrel (1).