CN2284104Y

CN2284104Y - Circulating air superfine pulverizing classifier

Info

Publication number: CN2284104Y
Application number: CN 96221758
Authority: CN
Inventors: 刘炳灿
Original assignee: YANGLI XINXING BUILDING MATERIAL FACTORY GONGYI CITY
Current assignee: YANGLI XINXING BUILDING MATERIAL FACTORY GONGYI CITY
Priority date: 1996-09-06
Filing date: 1996-09-06
Publication date: 1998-06-17
Anticipated expiration: 2006-09-06

Abstract

The utility model relates to a circulating air superfine pulverizing classifier, comprising a milling device driven by power source. The utility model is characterized in that an air supply system, a grinding chamber in the milling device, and a choosing hierarchical system together compose a totally-enclosed circulation loop. By adopting a totally-enclosed wind force circulation form, the utility model neither causes environmental contamination nor causes material wastage. The utility model performs a mode of rolling grinding, closed circuit, positive pressure transportation, negative pressure drawing noodles, and bustle assortment to work. The utility model has the advantages of compactness, low energy consumption, simple operation and high processing degree of fineness, etc. The utility model is an ideal commodity that replaces the older generation of the products by new ones.

Description

Ring wind super fine powder grader

The utility model relates to a kind of flour mill, relates in particular to a kind of ring wind super fine powder grader, and it is suitable for the processing of high rigidity, superfine powder pellet in the industries such as chemical industry, metallurgy, building materials and uses.

Progress along with society's science and technology, at chemical industry, metallurgical, building materials, industries such as refractory material, high rigidity, the demand of superfine powder material is increasing, the plant equipment of processing these powder material materials is also of a great variety, as the ball mill that generally uses in the present society, airflow milling, Raymond mill all belongs to the fine powder process equipment, its working method adopts the traditional handicraft of high-speed impact and workman's screening more, these equipment dynamics are big, the noise height, consume high, the powder particles of being processed is big, especially dust is big, seriously polluted, caused relevant development personnel's attention more than its problem.

A kind of ring wind super fine powder grader that the purpose of this utility model designs at existing weak point in the above-mentioned prior art just, this machine has overcome disadvantages such as existing flour mill noise height, powder particles be big, seriously polluted, the employing roll extrusion is ground, the classification of ring wind, totally enclosed type, little, the power saving of its volume, simple to operate, the fineness height, lossless, pollution-free, be a kind of energy-efficient product.

The purpose of this utility model realizes by following measure: this ring wind super fine powder grader comprises the abrasive dust device by drive power source, totally-enclosed closed circuit of the common formation of grinding chamber in supply air system and the abrasive dust device and selection by winnowing hierarchy system.

In the utility model, be provided with the thick blade of Spiralism type on abrasive dust device top with the place of connection of selection by winnowing hierarchy system, the gap can be adjusted by artificial between its blade; The abrasive dust device adopts the rolling-type lapping device of being made up of upper and lower mill and the abrading-ball between upper and lower mill.

The supply air system of this machine is made up of air blast and air supply duct, and air supply duct feeds grinding chamber by the air channel with abrasive dust device bottom; The selection by winnowing hierarchy system is by being located at roughly selecting clasfficiator and carefully selecting clasfficiator on the air channel, and two clasfficiator lower ends are respectively slightly, the fine powder discharging opening, roughly selects clasfficiator conical shell upper end edge and is evenly distributed in Spiralism type spire sheet, and the gap can be adjusted by artificial between its blade; Carefully select clasfficiator to form, be communicated with air blast by valve by the backwind tube that carefully selects clasfficiator top to draw by being arranged on four conveyor screw shape cyclone separators that carefully select the clasfficiator housing.

Operation principle of the present utility model is: utilize electric energy to change mechanical energy into, motor drives lower millstone through reduction box and rotates around vertical center axis, abrading-ball around trapped orbit rotation on self axis, is oppressed upper and lower mill by spring under lower millstone drives, the abrading-ball grinding material is pulverized; Utilize electric energy to change wind energy into, utilize the positive/negative pressure and the material own vol proportion of wind-force, carry out the selection by winnowing classification.

Its course of work is as follows: qualified material is evenly sent into main frame grinding chamber (falling into the centre) by batcher, abrading-ball between lower millstone and the upper and lower mill revolves round the sun and rotation around central axis and trapped orbit under power drive, rely on the contention effect of spring, material is ground under the rotation that compresses abrading-ball, powder after the grinding is overflowed by the abrading-ball outside, taken to grinding chamber top by the air-flow of air blast, carry out selection by winnowing by the thick blade of Spiralism type, the bigger material of granularity since bulk specific gravity difference fall into grinding chamber automatically and reface.Satisfactory powder flows to behind the bostle pipe road thick slightly powder with the wind and falls into and roughly select device again after Spiralism type spire sheet selection by winnowing is separated, arrange by finished product through the coarse fodder mouth, thinner micronic dust then enters and carefully selects device by roughly selecting device upper end with air-flow, carefully select by being arranged on four conveyor screw shape cyclone separators that carefully select the clasfficiator housing, micronic dust is in the negative pressure current downflow at this moment, and owing to the own wt reason, micronic dust falls after collecting, discharge by the fines mouth, i.e. superfine powder.The air-flow backspin is walked on the ventilation duct of conveyor screw shape cyclone separator core again, by backwind tube through valve enter air blast again supercharging make shuttling movement, because grinding machine and whole service system all are in air-tight state, no dust pollution environment does not have material consumption loss yet.

The utility model is owing to take totally-enclosed wind-force circulation form, neither can cause environmental pollution, also can not cause material loss, carry out roll extrusion and grind, closed cycle, malleation is carried, and negative pressure is taken out powder, the work of ring wind hierarchical approaches, its volume is little, energy consumption is low, simple to operate, processing fineness height, a kind of desirable renewal product of can yet be regarded as.

The drawing of accompanying drawing is described as follows:

Fig. 1 is a structural front view of the present utility model.

Fig. 2 cuts open figure for the A-A office of Fig. 1.

The utility model is done detailed description below in conjunction with accompanying drawing:

As shown in Figure 1 and Figure 2: this ring wind super fine powder grader comprises the rolling-type lapping device of being made up of upper and lower mill (4) and the abrading-ball (5) between upper and lower mill that is driven by reductor (3) by power source (15), by charging aperture (1) feeding, spring (6) is oppressed upper and lower mill (4), and abrading-ball (5) grinding material is pulverized.Totally-enclosed closed circuit of the common formation of grinding chamber (2) in supply air system (7) and the abrasive dust device and selection by winnowing hierarchy system evenly is provided with Spiralism type thick blade (8) with the place that is communicated with of selection by winnowing hierarchy system along circumference on abrasive dust device top; Supply air system is made up of air blast (7) and air supply duct, and air supply duct feeds grinding chamber (abrading-ball outer ring) by the air channel of abrasive dust device bottom; The selection by winnowing hierarchy system is by being located at roughly selecting clasfficiator (9) and carefully selecting clasfficiator (11) on the air channel, two clasfficiator shells are funnel-shaped structure, its lower end is respectively slightly, fine powder discharging opening (10) (12), roughly select clasfficiator conical shell upper end edge and be evenly distributed in Spiralism type spire sheet (14), the gap can be adjusted by artificial between its blade; Carefully select clasfficiator (11) to form by being arranged on four the conveyor screw shape cyclone separators (16) that carefully select the clasfficiator housing, the backwind tube that carefully selects clasfficiator top to draw is communicated with air blast by valve (13).

Claims

1, the utility model relates to a kind of ring wind super fine powder grader, it comprises the abrasive dust device that is driven by power source (15), it is characterized in that: totally-enclosed closed circuit of the common formation of grinding chamber (2) in supply air system (7) and the abrasive dust device and selection by winnowing hierarchy system.

2, ring wind super fine powder grader according to claim 1 is characterized in that: evenly be provided with Spiralism type thick blade (8) with the place that is communicated with of selection by winnowing hierarchy system along circumference on abrasive dust device top.

3, ring wind super fine powder grader according to claim 1 is characterized in that: the fluid pressure type lapping device of abrasive dust device for being made up of upper and lower mill (2) and the abrading-ball (5) between upper and lower mill.

4, want art 1 described ring wind super fine powder grader according to right, it is characterized in that: supply air system is made up of air blast (7) and air supply duct, and air supply duct feeds grinding chamber (2) by the air channel of abrasive dust device bottom.

5, ring wind super fine powder grader according to claim 1, it is characterized in that: the selection by winnowing hierarchy system is by being located at roughly selecting clasfficiator (9) and carefully selecting clasfficiator (11) on the air channel, two clasfficiator lower ends are respectively slightly, fine powder discharging opening (10) (12), roughly select clasfficiator conical shell upper end edge and are evenly distributed in Spiralism type spire sheet (14).

6, ring wind super fine powder grader according to claim 5 is characterized in that: carefully select clasfficiator (11) to form by being arranged on four the conveyor screw shape cyclone separators (16) that carefully select the clasfficiator housing.

7, according to claim 1 or 4 or 5 described ring wind super fine powder graders, it is characterized in that: be communicated with air blast (7) by valve (13) by the backwind tube that carefully selects clasfficiator (11) top to draw.