CN2933577Y

CN2933577Y - Ring wimble type classifier

Info

Publication number: CN2933577Y
Application number: CN 200620012680
Authority: CN
Inventors: 高彬
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-11
Filing date: 2006-04-11
Publication date: 2007-08-15
Anticipated expiration: 2016-04-11

Abstract

An annular tapered grader comprises a feeder, a coarse grading chamber, a medium grading chamber, a flood relief channel, a coarse material discharge device, a medium material discharge device, a medium service water netting, a ascending water service pipe material distributing tray, an electrical system(including a sensor), a bracket and so on. Through adjusting the pressure and amount of ascending water as well as setting the electrical system(including the sensor), the device realizes precise grouping, improving grading efficiency, stabilizing grading production index, improving automatic degree of grading and reducing energy and material consumption.

Description

Central Cone Type Classifier

Technical field

The utility model relates to a kind of fine grader, specifically, relates to a kind of fine wet classification equipment.

Background technology

Relate in material sorting and the purifying industrial in metallic ore ore dressing, nonmetallic ore ore dressing, chemical industry, building materials and other, often need be divided into some ranks to the material behind the crushing and grinding by granularity and handle respectively again.The height of effectiveness of classification, influence the quality of sorting and purification operation final products, also directly influence height broken, the grinding operation energy consumption simultaneously, therefore, stock grading is the key link in the relevant enterprise technological process of production, and is directly related with the product quality and the economic benefit of enterprise.

Existing wet classification technology adopts spiral classifier and hydrocyclone to carry out stock grading more.The spiral classifier characteristics are that work is more stable, shortcoming is to carry out the classification of thin material, and heavy useful material derichment in the sand setting, caused pulverizing after turning back to grinding operation, the characteristics of hydrocyclone are simple in structure, no running gear, and equipment manufacturing cost is low, floor space is little, and its shortcoming is to mine-supplying quantity, feed preparation unit size and feed ore concentration bad adaptability.More than these two kinds of classifying equipoments because its common drawback that limits of classification principle is to realize the instant adjustment of running status, can not control automatically, simultaneously, the classification interface is unclear, classification efficiency low (usually all below 50%), and the coarse grain internal circulating load is big, cause whole production flow process grinding system energy consumption high, separating effect is poor, and material is crossed pulverizing and can't be reclaimed and run off, and has had a strong impact on economic benefit of enterprises and social benefit.

Summary of the invention

The purpose of this utility model provides a kind of Central Cone Type Classifier, and it is unclear that this machine has overcome the classification interface of grader in the past, at the bottom of the classification efficiency, and the shortcoming that can not control automatically.

For realizing the purpose of this utility model, a kind of classifying equipoment that the utility model provides comprises charging gear, waterworks, coarse grain grading room, middle grain grading room, overflow launder, discharge device, frame, electrical system (comprising sensor) composition.Described charging gear can evenly feed the coarse grain grading room with slip, described coarse grain grading room is positioned at equipment central authorities, its upper limb connects downflow weir, in be provided with material separating disc, the bottom is connected with coarse grain ascending water pipeline and coarse grain discharge device, and coarse grain classification complete body is the multistage cone, and material carries out thickness grading under the action of turbulent flow of coarse grain ascending water, coarse grain is discharged through the coarse grain tapping equipment, and the grain grading room carried out further classification during middle particulate entered; Described middle grain grading room is body ringwise, be looped around coarse grain grading room top, inwall links to each other with the coarse grain grading room by middle particulate downflow weir, the outer wall upper limb is the particulate downflow weir, and the network of rivers, middle grain material discharge device are given in grain chamber during middle grain grading room bottom is provided with, ascending water pipeline and middle grain chamber, under the effect of the stable laminar fluidized bed that middle grain ascending water forms, the accurate classification of fine in carrying out, the grain tapping equipment is discharged in the middle grain material warp, and particulate enters overflow launder; Grain grading room top during overflow launder is looped around, outer wall links to each other with middle grain grading room through bottom land, and the overflow launder bottom land is certain slope along garden Zhou Fangxiang, is provided with the particulate discharge gate at overflow launder bottom land lowest part, and particulate is discharged through this discharge gate.The equipment integral seat drops on the frame, and electrical system (comprising sensor) is controlled automatically to the equipment course of work.

Description of drawings

Fig. 1 is the Central Cone Type Classifier front view.

Fig. 2 is the Central Cone Type Classifier vertical view.

The specific embodiment

As shown in Figure 1 and Figure 2, Central Cone Type Classifier comprises charging gear 1, coarse grain grading room 2, middle grain grading room 3, and overflow launder 4, coarse grain discharge device 5, middle grain discharge device 6, middle grain is given the network of rivers 7, material separating disc 8, electrical system (comprising sensor) 9, frame 10.

During Central Cone Type Classifier work (seeing accompanying drawing 1), feed 13 is vertically painted on the material separating disc 8 of coarse grain grading room bottom by coarse grain grading room 2 middle parts through charging gear 1, coarse grain ascending water 11 enters coarse grain grading room 2 by the annulus between material separating disc 8 and coarse grain grading room 2 inwalls, form the stream district in the bottom of coarse grain grading room 2 and realize the coarse grain classification, coarse-grained material 14 is according to the technological requirement sedimentation, the coarse grain tapping equipment 5 that enters coarse grain grading room 2 bottoms by the annulus is discharged, and middle fine enters middle grain grading room 3 by downflow weir, a middle grain grading room 3 utilizes fluidization centering grade and fine particle stage material to carry out classification, after middle grain ascending water 12 is given the network of rivers 7 by middle grain chamber, form uniform and stable laminar fluidized bed in middle grain grading room 3 bottoms, material is realized accurate classification, fine 16 enters overflow launder 4 and discharges, grain grading room 3 bottoms during middle grade material 15 is deposited to, a discharge device 6 is discharged in along the circumferential direction evenly distributing.

According to processing material load condition, by changing the rising water yield and middle grain grading room feedwater web frame, adjust the online pressure reduction down of fluidized bed height and feedwater, while is in conjunction with the setting of electrical system (comprising sensor) 9, to coarse grain, all discharge valves of middle grain are opened, close and discharge velocity is controlled automatically, guarantee the accurate classification of material and the uniformity of material particles.

It is unclear that this Central Cone Type Classifier has overcome the classification interface of grader in the past, at the bottom of the classification efficiency, and the shortcoming that can not control automatically. this machine can make the classification interface clear, and precision improves, and adaptive capacity is strong, and treating capacity improves greatly and can control automatically simultaneously.

Claims

1, Central Cone Type Classifier comprises charging gear, overflow launder, discharge device, grading room, material separating disc, frame, it is characterized in that: grading room divides coarse grain grading room and middle grain grading room, and discharge device all is set below each grading room, and discharge device is provided with electrical system.

2, Central Cone Type Classifier as claimed in claim 1 is characterized in that the coarse grain grading room rising hydraulic pressure and the water yield, middle grain grading room rising hydraulic pressure and the water yield can regulate, and the hydraulic pressure adjustable range is 0-10Mpa, water yield adjustable range 0-500m ³/ h.

3, Central Cone Type Classifier as claimed in claim 1 is characterized in that overflow launder bottom land and horizontal direction angle of inclination are the 10-60 degree.

4, Central Cone Type Classifier according to claim 1, grain grading room feedwater screen distance is at 0.1-10mm in it is characterized in that.

5, Central Cone Type Classifier according to claim 1, it is two or more to it is characterized in that grading room can be.