CN2832297Y

CN2832297Y - Superfine powder mill

Info

Publication number: CN2832297Y
Application number: CN 200520032408
Authority: CN
Inventors: 李振中; 董雪兰
Original assignee: WENXIAN WEISHI MECHINE CO Ltd
Current assignee: WENXIAN WEISHI MECHINE CO Ltd
Priority date: 2005-10-26
Filing date: 2005-10-26
Publication date: 2006-11-01
Anticipated expiration: 2015-10-26

Abstract

The utility model relates to a superfine powder mill for crushing ore. The utility model is provided with a mill roller crushing assembly in a lower cylinder body of a machine body assembly; the mill roller crushing assembly is composed of a mill ring, mill discs and mill rollers, wherein each mill roller is arranged between an upper and a lower mill discs by different mill roller shafts, and forms autorotation around a respective mill roller shaft; a mill roller pallet is arranged in the middle of an upper mill roller and a lower mill roller; the upper mill disc, the lower mill disc and the mill roller pallet are connected with the upper end of a spindle of a spindle assembly by a central shaft hole, and accordingly, each mill roller can form revolution around the spindle. The mill ring is sheathed and fixed on the lower cylinder body, and the inner surface is respectively provided with annular grooves matched with the shape of the upper mill roller and the lower mill roller; an airflow channel with an angle of 1/8 to 1/10 is formed between the outer surface of the mill ring and the inner surface of the lower cylinder body, airflow is made to rise with change speeds and exhausts from an analyzing discharge assembly. The utility model has the advantages of compact structure, low cost, high efficiency, convenient disassembly and material saving.

Description

Superfine mill

Technical field:

The utility model relates to a kind of ore disintegrating apparatus, particularly relates to a kind of superfine mill.

Background technology:

The operation that grinds of various solid materials is problems eternal on the human history in the mine industry both at home and abroad, the human valuable mineral that obtains, obtain fine particle stage material and be used for industries such as building materials, chemical industry, medicine, food, these be unable to do without all the time and grind operation, the development of modern science, need the product of more ultra-fine grade, also disintegrating apparatus is had higher requirement.

The type of ultra-fine grinding equipment mainly contains airflow milling, the high speed machine impact grinder, medium super grinder and high-pressure spray pulverizer etc., airflow milling wherein, the high speed machine impact grinder is a dry type ultra-fine grinding equipment, medium super grinder and high-pressure spray pulverizer then have two kinds of dry type and wet types, these pulverizers respectively have pluses and minuses, the specific energy consumption that product fineness is good is big, productivity ratio is low, and the production efficiency height, its product fineness that specific energy consumption is low can't satisfy the market instructions for use again, comparatively advanced is a kind of improved high speed machine impact grinder at present, as publication number is that (application number is 02270593.7 to CN 2601740Y Chinese patent, the utility model name is called: " ultra-fine internal classification centrifugal hoop roller mill ") a kind of centrifugal hoop roller mill disclosed, it has the performance of high yield and low cost, has product granularity again near airslide disintegrating mill, but the last grinding roller of this utility model and the shared axis of rotation of following grinding roller, and grinding roller and grinding roller axle all belong to consumable accessory, like this when a position is damaged, all all must dismantle, and causes the material profligacy.

Summary of the invention:

The purpose of this utility model provides a kind of compact conformation, cost is low, energy consumption is low, efficient is high, the superfine mill of convenient disassembly, saving material.

The purpose of this utility model is achieved through the following technical solutions:

A kind of superfine mill, comprise the base assembly, block assembly, main shaft assembly, feed assembly and analysis discharging assembly, grinding roller is installed in the lower shell of block assembly pulverizes assembly, described grinding roller is pulverized assembly by bull ring, upper millstone, lower millstone, last grinding roller and following grinding roller are formed, wherein, last grinding roller and following grinding roller are installed between upper millstone and the lower millstone by different grinding roller axles, and each grinding roller can be around grinding roller axle rotation separately, be provided with the grinding roller pallet in the middle of last grinding roller and the following grinding roller, upper millstone, lower millstone and grinding roller pallet connect with the main shaft upper end of main shaft assembly by central shaft hole, each grinding roller can be revolved round the sun around main shaft, the bull ring suit is fixed on the lower shell, its inner surface is respectively equipped with and last grinding roller, the annular groove that following grinding roller shape is complementary, form gas channel between its outer surface and the lower shell inner surface with certain angle, the air-flow speed change is risen, discharge after analyze the discharging assembly.

Form 1/8～1/10 tapering between described bull ring outer surface and the lower shell inner surface, make formed gas channel be up-small and down-big tapering, simultaneously fixing bull ring.

Described analysis discharging assembly is formed by analyzing casing, analysis main shaft, wind wheel and integration ring, the bottom of wherein analyzing casing is fixed on the top of the upper shell of block assembly, analyzing main shaft vertically is fixed on the analysis casing by bearing, analyzing the main shaft lower end extends in the upper shell, and the bottom of analyzing main shaft is equipped with wind wheel, the integration ring set and is fixed on upper shell or analyzes on the casing around the bottom of wind wheel.

Positive beneficial effect of the present utility model is:

1. superfine mill of the present utility model, because last grinding roller and following grinding roller are installed between upper millstone and the lower millstone by different grinding roller axles, and each grinding roller can be around grinding roller axle rotation separately, when a part is damaged, independent removing damaged position, avoid the trouble of integral demounting, can save material dramatically.

2. superfine mill of the present utility model, owing to formed the gas channel with certain angle between its outer surface and the lower shell inner surface, air-flow can speed change rise, and can improve effectiveness of classification dramatically.

3. superfine mill of the present utility model, because analyzing the discharging assembly is provided with the analysis casing, analyzes bearing chamber and analysis axis, material is subjected to the effect speed change spiral of the negative-pressure sucking of system fan to rise to block assembly top, during outlet, section enlarges, and air-flow slows down, the part coarse granule is directly refunded again and is pulverized, fine powder continues to enter the analysis casing with the air-flow rising, and coming out from discharging opening in qualified by analysis back, and then reaches needed granularity.

4. superfine mill of the present utility model, material can form the air-flow speed change and rises during the broken work of conducting powder, impacts simultaneously, extruding, grinding material, has improved the effectiveness of classification of product, can make granularity reach 1000～1250 orders, fully satisfy the different needs of industry-by-industry.

Description of drawings:

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

The specific embodiment:

The utility model will be further described below in conjunction with accompanying drawing:

Referring to Fig. 1, a kind of superfine mill, comprise base assembly 2, block assembly 1, main shaft assembly 24, feed assembly 18 and analysis discharging assembly 14, grinding roller is installed in the lower shell 20 of block assembly 1 pulverizes assembly, described grinding roller is pulverized assembly by bull ring 9, upper millstone 19, lower millstone 22, last grinding roller 7 and following grinding roller 5 are formed, wherein, last grinding roller 7 and following grinding roller 5 are installed between upper millstone 19 and the lower millstone 22 by different grinding roller axles 8 and grinding roller axle 6, and each grinding roller can be around grinding roller axle rotation separately, be provided with grinding roller pallet 21 in the middle of last grinding roller 7 and the following grinding roller 5, upper millstone 19, lower millstone 22 and grinding roller pallet 21 connect with the main shaft upper end of main shaft assembly 24 by central shaft hole 10, each grinding roller can be revolved round the sun around main shaft, bull ring 9 suits are fixed on the lower shell 20, its inner surface is respectively equipped with and last grinding roller 7, the annular groove that following grinding roller 5 shapes are complementary, form gas channel 23 between its outer surface and lower shell 20 inner surfaces with certain angle, the air-flow speed change is risen, discharge after analyze discharging assembly 16.

Form 1/8～1/10 tapering between described bull ring 9 outer surfaces and lower shell 20 inner surfaces, make formed gas channel 23 be up-small and down-big tapering, simultaneously fixing bull ring.

Described analysis discharging assembly 14 is formed by analyzing casing 16, analysis main shaft 17, wind wheel 13 and integration ring 12, the bottom of wherein analyzing casing 16 is fixed on the top of the upper shell 11 of block assembly 1, analyzing main shaft 17 vertically is fixed on the analysis casing 16 by bearing, analyzing main shaft 17 lower ends extends in the upper shell 11, and the bottom of analyzing main shaft 17 is equipped with wind wheel 13, integration ring 12 is enclosed within around the bottom of wind wheel 13, and is fixed on upper shell 11 or the analysis casing 16.

During work, material enters the superfine mill from feed assembly 18, the grinding roller that falls into rotation is at a high speed pulverized on the assembly, after pulverizing, upper strata grinding roller 7 drops down onto lower floor's grinding roller 5, material is squeezed once more, material falls under the gravity effect, the effect that is subjected to the system fan negative-pressure sucking rises to block assembly top along gas channel 23 spiral speed changes, discharging assembly 14 is analyzed by analysis, qualified fine powder continues to enter the gathering system of being prepared with 18 discharges of air-flow rising edge discharging opening and collects, coarse fodder enters in the block assembly and pulverizes again, until qualified after discharging assembly 14 analysis is defined as defective material by analysis.

Claims

1. superfine mill, comprise base assembly (2), block assembly (1), main shaft assembly (24), feed assembly (18) and analysis discharging assembly (14), it is characterized in that: grinding roller is installed in the lower shell (20) of block assembly (1) pulverizes assembly, described grinding roller is pulverized assembly by bull ring (9), upper millstone (19), lower millstone (22), last grinding roller (7) and following grinding roller (5) are formed, wherein, last grinding roller (7) and following grinding roller (5) are installed between upper millstone (19) and the lower millstone (22) by different grinding roller axles (8) and grinding roller axle (6), and each grinding roller can be around grinding roller axle rotation separately, be provided with grinding roller pallet (21) in the middle of last grinding roller (7) and the following grinding roller (5), upper millstone (19), lower millstone (22) and grinding roller pallet (21) connect with the main shaft upper end of main shaft assembly (24) by central shaft hole (10), each grinding roller can be revolved round the sun around main shaft, bull ring (9) suit is fixed on the lower shell (20), its inner surface is respectively equipped with and last grinding roller (7), the annular groove that following grinding roller (5) shape is complementary, form gas channel (23) between its outer surface and lower shell (20) inner surface with certain angle, the air-flow speed change is risen, discharge after analyze discharging assembly (14).

2. superfine mill according to claim 1, it is characterized in that: form 1/8～1/10 tapering between described bull ring (9) outer surface and lower shell (20) inner surface, make formed gas channel (23) be up-small and down-big tapering, simultaneously fixing bull ring (9).

3. superfine mill according to claim 1 and 2, it is characterized in that: described analysis discharging assembly (14) is by analyzing casing (16), analyze main shaft (17), wind wheel (13) and integration ring (12) are formed, the bottom of wherein analyzing casing (16) is fixed on the top of the upper shell (11) of block assembly (1), analyzing main shaft (17) vertically is fixed on the analysis casing (16) by bearing, analyzing main shaft (17) lower end extends in the upper shell (11), and the bottom of analyzing main shaft (17) is equipped with wind wheel (13), integration ring (12) is enclosed within around the bottom of wind wheel (13), and is fixed on upper shell (11) or the analysis casing (16).