CN206778575U - A kind of barite crushing auxiliary and Raymond mill - Google Patents

Abstract

A kind of barite crushing auxiliary and Raymond mill are the utility model is related to, is related to barite production equipment field.Barite crushing auxiliary, it includes grinding roller and bull ring, grinding roller and bull ring inner ring surface rolling contact, bull ring includes at least one bull ring main body, each bull ring main body includes the first annular end being sequentially connected, first ring-type pars intermedia and the second annular end, the inner ring surface diameter of first ring-type pars intermedia becomes larger along the direction away from the first annular end and the second annular end respectively, the inner ring surface of the outer ring surface of grinding roller and the first annular end, the inner ring surface of first ring-type pars intermedia and the inner ring surface of the second annular end are respectively cooperating with, it is simple in construction, it is stable, effectively improve the operating efficiency of pulverizer.Barite production includes above-mentioned barite crushing auxiliary with Raymond mill, and it can effectively improve grinding efficiency, reduces maintenance cost.

Description

A kind of barite crushing auxiliary and Raymond mill

Technical field

Barite production equipment field is the utility model is related to, is covered in particular to a kind of barite crushing auxiliary and thunder Mill.

Background technology

Barite is with the nonmetal mineral product that barium sulfate (BaSO4) is main component, pure barite whitening color, has light Pool, due to the influence also normal gray, light red, light yellow etc. of impurity and tramp material, the fairly good barite of crystallization situation is also Can transparent crystal appearance；It has the complete and medium cleavage in 3 directions, Mohs' hardness 3~3.5, proportion 4.5.Primarily form Under the conditions of medium-low temperature fluid.Used after the barite milling by bulk is needed in actual production.

The operation principle of Raymond mill be by grinding roller in the running that revolves round the sun on caused centrifugal force and bull ring from tumbler Dynamic to grind barite, contact surface is grinding roller outer ring surface and bull ring inner ring surface between grinding roller and bull ring, and existing normal open is overground Number, grinding roller, the bull ring size of roller decide the pulverizer yield of different cultivars specification, also, crushing auxiliary (by grinding roller and Bull ring forms) profile is mostly the face of cylinder or circular conical surface, mainly by centrifugal force attrition crushing material caused by grinding roller revolution, it is produced Powder particles it is larger, be not suitable for production super fine the shortcomings that it is also more and more obvious.

Utility model content

The purpose of this utility model is to provide a kind of barite crushing auxiliary, and its is simple in construction, stable, effectively improves The operating efficiency of pulverizer, suitable for producing micropowders.

Another object of the present utility model is to provide a kind of Raymond mill, and it can effectively improve grinding efficiency, reduces dimension Accomplish this.

What embodiment of the present utility model was realized in：

A kind of barite crushing auxiliary, it includes grinding roller and bull ring, grinding roller and bull ring inner ring surface rolling contact, and bull ring is included extremely A few bull ring main body, each bull ring main body include the first annular end, the first ring-type pars intermedia and second being sequentially connected Annular end, the inner ring surface diameter of the first ring-type pars intermedia is respectively along the direction away from the first annular end with the second annular end Become larger, the inner ring surface of the outer ring surface of grinding roller and the first annular end, the inner ring surface and the second ring of the first ring-type pars intermedia The inner ring surface of shape end is respectively cooperating with.

In the utility model preferred embodiment, the cross section of the inwall of above-mentioned first ring-type pars intermedia is trapezoidal.

In the utility model preferred embodiment, above-mentioned first annular end and the junction of the first ring-type pars intermedia are led Angling processing, the second annular end and the junction lead angleization of the first ring-type pars intermedia are handled.

In the utility model preferred embodiment, the inner ring surface of above-mentioned first annular end, the first ring-type pars intermedia Inner ring surface and the inner ring surface of the second annular end are respectively arranged with the first wear-resistant material layer, and the outer ring surface of grinding roller is provided with second Wear-resistant material layer.

In the utility model preferred embodiment, the inner ring surface of above-mentioned first annular end, the first ring-type pars intermedia Inner ring surface and the inner ring surface of the second annular end are respectively equipped with the first groove, and the first wear-resistant material layer is embedded at the first groove.

In the utility model preferred embodiment, above-mentioned first wear-resistant material layer is high chromium cast iron layer, diamond layer, carbon Change chromium composite layer or hard alloy layer.

In the utility model preferred embodiment, above-mentioned first wear-resistant material layer is high chromium cast iron layer.

In the utility model preferred embodiment, above-mentioned second wear-resistant material layer is hard alloy layer.

In the utility model preferred embodiment, above-mentioned first annular end is identical with the setting of the second annular end, First annular end is symmetrical arranged with the second annular end along the first ring-type pars intermedia.

A kind of Raymond mill, it includes above-mentioned barite crushing auxiliary.

The beneficial effect of the utility model embodiment is：It is pressed on when grinding roller rotates around the spindle due to the effect of centrifugal force On bull ring, barite from charging aperture entrance after can trickle down between bull ring and grinding roller, barite between grinding roller and bull ring by The effect that extrudes and mill and be crushed, the barite powder after crushing is exported by discharging opening, carries out the processing of other processes, It is gradual along the direction away from the first annular end and the second annular end respectively by the inner ring surface diameter of the first ring-type pars intermedia Become big, in the case of making grinding roller, bull ring size constant, effectively increase contact area between grinding roller and bull ring, make material powder It is broken to be more uniformly distributed and easily crush as micropowders, while effectively spacing grinding roller, eccentric wear is effectively reduced, improves grinding roller and bull ring The stability of cooperation, improve the quality of barite powder.Barite production Raymond mill including above-mentioned barite crushing auxiliary, has Effect improves its barite crush efficiency.

Brief description of the drawings

Fig. 1 is the structural representation for the barite production Raymond mill that the utility model first embodiment provides；

Fig. 2 is the structural representation for the bull ring that the utility model first embodiment provides；

Fig. 3 is the structural representation for the grinding roller that the utility model first embodiment provides；

Fig. 4 is the structural representation of the utility model first embodiment barite crushing auxiliary.

Icon：10- barite production Raymond mills；20- housings；210- main shafts；220- plum blossom framves；230- charging apertures； 240- discharging openings；250- air inlets；30- air blowers；40- barite crushing auxiliaries；410- bull rings；411- bull ring main bodys；412- One annular end；413- the first ring-type pars intermedias；The annular ends of 414- second；The wear-resistant material layers of 415- first；416- first is recessed Groove；420- grinding rollers；The ends of 421- the 3rd；The pars intermedias of 422- second；The ends of 423- the 4th；424- mounting holes；425- second is wear-resisting Material layer；The grooves of 426- second.

Embodiment

It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Generally here described in accompanying drawing and The component of the utility model embodiment shown can be configured to arrange and design with a variety of.

Therefore, the detailed description of the embodiment of the present utility model to providing in the accompanying drawings is not intended to limit requirement below The scope of the utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all Belong to the scope of the utility model protection.

It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.

, it is necessary to explanation in description of the present utility model, term " on ", " interior ", the orientation or position of the instruction such as " outer " Put relation be based on orientation shown in the drawings or position relationship, or the utility model product using when the orientation usually put Or position relationship, be for only for ease of description the utility model and simplify and describe, rather than instruction or imply signified device or Element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the present utility model System.In addition, term " first ", " second ", " the 3rd ", " the 4th " etc. are only used for distinguishing description, and it is not intended that instruction or dark Show relative importance.

In description of the present utility model, it is also necessary to which explanation, unless otherwise clearly defined and limited, term " are set Put ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this Concrete meaning in utility model.

First embodiment

Referring to Fig. 1, the present embodiment, which provides a kind of barite production, uses Raymond mill 10, it includes housing 20, blanc fixe Broken secondary 40 and air blower 30.

Please continue to refer to Fig. 1, main shaft 210 and plum blossom frame 220, one end and the plum blossom frame of main shaft 210 are provided with housing 20 220 connections, the other end are connected with actuating unit (not shown).Plum blossom frame 220 is located at the top of actuating unit, i.e. plum blossom frame 220 are located at the one end of actuating unit away from ground.

The side wall of housing 20 is provided with charging aperture 230, and the one end of housing 20 away from ground is provided with discharging opening 240, housing 20 The one end on ground is provided with air inlet 250, air inlet 250 is communicated with air blower 30, so as to by air blower 30 by wind Enter in housing 20.

Wherein, milling mechanism includes grinding roller 420 and bull ring 410.Grinding roller 420 is rotatably connected with plum blossom frame 220, bull ring 410 are arranged at the position that grinding roller 420 is corresponded in housing 20, grinding roller 420 be sheathed on bull ring 410 and grinding roller 420 and bull ring 410 it is interior Anchor ring rolling contact.

Specifically, referring to Fig. 2, bull ring 410 includes at least one bull ring main body 411, for example, bull ring 410 include one, Two, three, five bull ring main bodys 411 etc..When bull ring 410 includes two and more than two bull ring main bodys 411, two and More than two bull ring main bodys 411 are set along its axis coaxle, it is highly preferred that two and more than two bull ring main bodys 411 1 Body formed setting, effectively improve milling efficiency.

In the present embodiment, preferably bull ring 410 only includes a bull ring main body 411, effectively reduces cost of manufacture, the present embodiment Only specifically described based on bull ring 410 including a bull ring main body 411.

In order that in the case that grinding roller 420, the size of bull ring 410 are constant, effectively increase grinding roller 420 and bull ring 410 it Between contact area, make what barite crushed to be more uniformly distributed, therefore, referring to Fig. 2, each bull ring main body 411 includes the first ring-type End 412, the first ring-type pars intermedia 413 and the second annular end 414.

First annular end 412, the first ring-type pars intermedia 413 and the second annular end 414 sequentially coaxially connect, and are formed One complete bull ring 410, the i.e. outer ring surface of the first annular end 412, the outer ring surface and second of the first ring-type pars intermedia 413 The outer ring surface of annular end 414 collectively forms the outer ring surface of bull ring 410, in the utility model, for bull ring 410 outer ring surface not Do any change.

Specifically, the inner ring surface diameter of the first ring-type pars intermedia 413 is respectively along away from the first annular end 412 and the second ring The direction of shape end 414 becomes larger, and is easy to barite to enter and export, and it is micropowders to be easy to barite to crush.

Preferably due to when grinding roller 420 contacts rolling with bull ring 410, rotated at a high speed because grinding roller 420 is in, and each mill Roller 420 is not uniform force when being contacted with bull ring 410, works long hours, the problem of eccentric wear easily occurs, influences the effect that is milled. Therefore, the cross section of the inner ring surface of the first ring-type pars intermedia 413 is trapezoidal, so as to which effective spacing grinding roller 420, effectively reduction is inclined Mill, the stability that grinding roller 420 coordinates with bull ring 410 is improved, improve the quality of milling.

Preferably, the first annular end 412 is identical with the setting of the second annular end 414, the first annular end 412 and Two annular ends 414 are symmetrical arranged along the first ring-type pars intermedia 413, and stress is equal when the grinding roller 420 is contacted with bull ring 410 It is even.

First annular end 412 and the junction lead angleization of the first ring-type pars intermedia 413 are handled, the second annular end 414 Handled with the junction lead angleization of the first ring-type pars intermedia 413, effectively reduce wear rate.

Due to grinding roller 420 and the long-term work of bull ring 410, grinding roller 420 and bull ring 410 are gradually worn down, and hardness reduces, up to not To the requirement of milling to barite, grinding roller 420 and bull ring 410 are only changed to solve problem, but be replaced as frequently as the He of grinding roller 420 Bull ring 410, especially for large-scale flour mill, the delay of working time and the increase of financial cost can be caused.

It is therefore preferred that please continue to refer to Fig. 2, the inner ring surface of the first annular end 412, the first ring-type pars intermedia 413 Inner ring surface and the inner ring surface of the second annular end 414 are respectively arranged with the first wear-resistant material layer 415.

First wear-resistant material layer 415 is high chromium cast iron layer, diamond layer, chromium carbide compounded material layer or hard alloy layer. In the present embodiment, preferably the first wear-resistant material layer 415 is high chromium cast iron layer.Wherein, rich chromium cast iron is high chromium white antifriction cast iron Abbreviation, be a kind of anti-friction material of function admirable, its wearability is better than steel alloy, and its toughness and intensity are far above common White cast-iron, while it also has good high temperature resistance and corrosion resistance concurrently, and convenient, moderate cost is produced, effectively reduce The cost of manufacture of first wear-resistant material layer 415.

The inner ring surface in the first annular end 412, first is respectively welded in first wear-resistant material layer 415 by way of spot welding The inner ring surface of the inner ring surface of ring-type pars intermedia 413 and the second annular end 414, make the first wear-resistant material layer 415 and bull ring 410 Inner ring surface junction it is more stable, effectively extend bull ring 410 usage time.

Referring to Fig. 2, the inner ring surface and the second ring of the inner ring surface of the first annular end 412, the first ring-type pars intermedia 413 The inner ring surface of shape end 414 is respectively equipped with the first groove 416, so that the first wear-resistant material layer 415 is embedded at the first groove 416 It is interior, further enhance the steadiness of the first wear-resistant material layer 415.The total quantity of first groove 416 can be 3,5,10, 20 etc., the shape of the first groove 416 can be ring-type, hemispherical, cuboid, wavy etc., in the present embodiment, preferably first Groove 416 is annular recess, and total quantity is 3.

The thickness of first wear-resistant material layer 415 is 15-30mm, and abrasion resistant effect is good.The thickness of the first wear-resistant material layer 415 herein It is the first wear-resistant material layer 415 close to the distance between inner ring surface of the side of grinding roller 420 and the first annular end 412.I.e. The thickness for the part that the first wear-resistant material layer 415 is located in the first groove 416 is not included in the thickness of one wear-resistant material layer 415.

Referring to Fig. 3, grinding roller 420 include the 3rd end 421 corresponding with bull ring main body 411, the second pars intermedia 422 and The inner ring surface of 4th end 423, the outer ring surface of the 3rd end 421 and the first annular end 412 coordinates, the second pars intermedia 422 The cooperation of the inner ring surface of outer ring surface and the first ring-type pars intermedia 413, the outer ring surface of the 4th end 423 and the second annular end 414 Inner ring surface coordinates.3rd end 421 is also done corresponding lead angleization with the junction of the second pars intermedia 422 and handled, the 4th end 423 Corresponding lead angleization is also done with the junction of the second pars intermedia 422 to handle.

Grinding roller 420 is provided with mounting hole 424, and mounting hole 424 runs through the 3rd end 421, the second pars intermedia 422 and the 4th end Portion 423, grinding roller 420 are rotatably connected by mounting hole 424 and plum blossom frame 220, so as to which grinding roller 420 produces in the running that revolves round the sun Raw centrifugal force barite is rolled it is crowded broken, while grinding roller 420 on bull ring 410 rotation roll further barite is ground.

Preferably, the quantity of grinding roller 420 is at least one, such as one, two, three, five etc., in the present embodiment, Referring to Fig. 4, it is preferred that the quantity of grinding roller 420 is three, three grinding rollers 420 are uniformly distributed in equilateral triangle, effectively improve weight The stability that spar production is run with Raymond mill 10.

Preferably, please continue to refer to Fig. 3 and Fig. 4, the outer ring surface of the 3rd end 421, the outer ring surface of the second pars intermedia 422 And the 4th the outer ring surface of end 423 be respectively arranged with the second wear-resistant material layer 425, the second wear-resistant material layer 425 is the casting of high chromium Iron layer, diamond layer, chromium carbide compounded material layer or hard alloy layer, in the present embodiment, the second wear-resistant material layer 425 is hard Alloy-layer, wherein, hard alloy has hardness high, intensity and toughness is preferable, a series of Optimalities such as wear-resisting, heat-resisting, corrosion-resistant Can, its high rigidity and wearability is particularly, is also held essentially constant at a temperature of 500 DEG C, still has at 1000 DEG C Very high hardness.The thickness of second wear-resistant material layer 425 is 10-22mm.

The outer ring surface in the 3rd end 421 is respectively welded, among second in second wear-resistant material layer 425 by way of spot welding The outer ring surface in portion 422 and the outer ring surface of the 4th end 423, junction is more stable, when effectively extending the use of bull ring 410 Between.

It is highly preferred that the outer ring surface of the 3rd end 421, the outer ring surface of the second pars intermedia 422 and the 4th end 423 it is interior Anchor ring is respectively equipped with the second groove 426, so that the second wear-resistant material layer 425 is embedded in the second groove 426, so that second The connection of wear-resistant material layer 425 is more firm.The total quantity of second groove 426 can be 3,5,10,20 etc., second The shape of groove 426 can be ring-type, hemispherical, cuboid, wavy etc., and in the present embodiment, preferably the second groove 426 is ring Shape groove, and total quantity is 3.

It is highly preferred that the thickness of the second wear-resistant material layer 425 is 10-22mm, abrasion resistant effect is good.The second high-abrasive material herein 425 thickness of layer are the second wear-resistant material layer 425 close to the distance between inner ring surface of the side of bull ring 410 and grinding roller 420.I.e. The thickness that the second wear-resistant material layer 425 is located in the second groove 426 is not included in the thickness of two wear-resistant material layer 425.

Raymond mill operation principle：Grinding roller 420 around main shaft 210 rotate when bull ring 410 is pressed on due to the effect of centrifugal force On, barite can be trickled down between bull ring 410 and grinding roller 420 after the entrance of charging aperture 230, and barite is in grinding roller 420 and bull ring The effect that is squeezed and mills between 410 and be crushed, the air-flow that the barite powder after crushing is blown out by air blower 30 Blown out from discharging opening 240, carry out the processing of other processes.

In summary, the utility model preferred embodiment barite crushing auxiliary 40 and Raymond mill, weight crystalline substance can be effectively improved The yield of stone, while ensure that milling mechanism operates steadily, the efficiency of milling is improved, effectively reduces maintenance cost.

Preferred embodiment of the present utility model is these are only, is not limited to the utility model, for this area Technical staff for, the utility model can have various modifications and variations.It is all within the spirit and principles of the utility model, Any modification, equivalent substitution and improvements made etc., should be included within the scope of protection of the utility model.

Claims (10)

1. a kind of barite crushing auxiliary, it includes grinding roller and bull ring, grinding roller and bull ring inner ring surface rolling contact, it is characterised in that The bull ring includes at least one bull ring main body, the first annular end that each bull ring main body includes being sequentially connected, first Ring-type pars intermedia and the second annular end, the inner ring surface diameter of the first ring-type pars intermedia is respectively along away from first ring Shape end and the direction of second annular end become larger, and the outer ring surface of the grinding roller is interior with first annular end The inner ring surface of anchor ring, the inner ring surface of the first ring-type pars intermedia and the second annular end is respectively cooperating with.

2. barite crushing auxiliary according to claim 1, it is characterised in that the horizontal stroke of the inwall of the first ring-type pars intermedia Section is trapezoidal.

3. barite crushing auxiliary according to claim 1, it is characterised in that first annular end and first ring The junction lead angleization processing of shape pars intermedia, second annular end and the junction lead angle of the first ring-type pars intermedia Processing.

4. barite crushing auxiliary according to claim 1, it is characterised in that the inner ring surface of first annular end, The inner ring surface of one ring-type pars intermedia and the inner ring surface of the second annular end are respectively arranged with the first wear-resistant material layer, the grinding roller Outer ring surface be provided with the second wear-resistant material layer.

5. barite crushing auxiliary according to claim 4, it is characterised in that the inner ring surface of first annular end, institute State the inner ring surface of the first ring-type pars intermedia and the inner ring surface of second annular end is respectively equipped with the first groove, described first Wear-resistant material layer is embedded at first groove.

6. barite crushing auxiliary according to claim 5, it is characterised in that first wear-resistant material layer is rich chromium cast iron Layer, diamond layer, chromium carbide compounded material layer or hard alloy layer.

7. barite crushing auxiliary according to claim 6, it is characterised in that first wear-resistant material layer is rich chromium cast iron Layer.

8. barite crushing auxiliary according to claim 4, it is characterised in that second wear-resistant material layer is hard alloy Layer.

9. barite crushing auxiliary according to claim 1, it is characterised in that first annular end and second ring The setting of shape end is identical, and first annular end is symmetrical arranged with second annular end along the first ring-type pars intermedia.

10. a kind of Raymond mill, it is characterised in that including the barite crushing auxiliary described in claim 1-9 any one.