CN201579206U

CN201579206U - Combined grader

Info

Publication number: CN201579206U
Application number: CN2009201874981U
Authority: CN
Inventors: 包玮; 张永龙; 王学敏; 熊焰来; 董立珂; 胡俊亚
Original assignee: Hefei Cement Research and Design Institute Co Ltd
Current assignee: Hefei Cement Research and Design Institute Co Ltd
Priority date: 2009-09-14
Filing date: 2009-09-14
Publication date: 2010-09-15
Anticipated expiration: 2019-09-14

Abstract

The utility model discloses a combined grader which comprises an outer tube body, wherein an inner tube body is fixedly arranged in the outer tube body, the upper end of the outer tube body is provided with a grading motor through a support, the lower end of the output shaft of the grading motor is fixedly connected with a rotary shaft which extends into the outer tube body, the lower end of the rotary shaft is provided with a grading impeller which is arranged on the upper portion of the inner tube body, an outer casing on the upper portion of a bulk material disc is provided with a feed inlet, the lower end of the outer tube body is provided with a discharge hole, the lower end of the inner tube body is a conical blanking hopper, screen holes are arranged on the lateral wall of the blanking hopper, and the blanking hopper is connected with a wind selector. The combined grader scatters and grades materials which are squeezed by a roll squeezer for many times, and separates out materials which are not squeezed and are not fully squeezed even through squeezing through the combination of air separation and screen selecting, feeds back the materials to the roll squeezer for repeatedly squeezing, and has high separation efficiency.

Description

Combined type classifier

Technical field

The utility model relates to scattering and grading equipment, specifically is a kind of combined type classifier.

Background technology

At present, be accompanied by the high speed development of Chinese national economy in recent years, China's cement production capacity has reached 1,000,000,000 tons.New production line all is the large-scale production line in 700,000 tons of annual outputs and above scale thereof, ton cement power consumption is about 90～100kWh, and the power consumption of cement grinding workshop section accounts for and produces 60～70% of cement power consumption, only cement grinding this, a year power consumption just reaches about 60,000,000,000 degree.And roll squeezer can make system's volume increase 50%～200% in the successful Application of cement grinding system, and economize on electricity 20%～40% has been saved the energy, reduced the manufacture of cement electricity consumption, thereby realizes sustainable development.Roll squeezer applying high voltage bed of material pulverization principle, adopt single material to pulverize the working method of group feature, brittle material reduces surmising rapidly of material through high-pressure extrusion (pressure of crush zone is about 150MPa), fine powder content less than 0.08mm reaches 20～30%, material less than 2mm reaches more than 70%, and has a large amount of micro-cracks in all materials through pushing, and has improved the grindability of material, make material in next operation during grinding, required energy consumption reduces significantly.According to our the acquired actual data of using, adopt the grinding system of roll squeezer can increase production 50～200% than former traditional grinding system, the per unit area yield power consumption can reduce by 20～40%, the noise of equipment work also reduces to some extent simultaneously, improve the worker laboring environment, fully demonstrated remarkable economic benefit and social benefit.

The utility model content

The purpose of this utility model provides a kind of combined type classifier, the material that pushed through roll squeezer is broken up and multiple fractionation, though the combination by selection by winnowing and screening will be come out without extruding and through the feed separation of pushing but not being adequately compressed, send roll squeezer back to and push again, efficiency of separation height.

The technical solution of the utility model is as follows:

Combined type classifier, include outer cylinder body, be set with inner barrel in the outer cylinder body, the upper end of outer cylinder body is equipped with split-pole motor by support, the output shaft lower end of split-pole motor is fixedly connected with the rotating shaft that extend into outer cylinder body inside, the lower end of rotating shaft is equipped with the classifying turbine that is positioned at the inner barrel top, rotating shaft is set with hollow shaft outward, hollow shaft is by breaing up motor-driven, the lower end of hollow shaft is equipped with the bulk cargo dish, the shell body of the top of bulk cargo dish has charging aperture, and the lower end of outer cylinder body has discharging opening, it is characterized in that: described inner barrel lower end is conical hopper, be furnished with mesh on the sidewall of hopper, hopper is connected air classifier, and described air classifier comprises the air intake passage that crosses, the air-out passage, tapping channel, blanking channel, its intersection is fixed with the bulk cargo plate of interlaced arrangement.

Described air classifier is built in the outer cylinder body, and air intake passage, tapping channel, blanking channel all pass the sidewall of outer cylinder body; Air classifier or be placed on outside the outer cylinder body.

Described bulk cargo plate is through Wear-resistant Treatment, and arrangement is herringbone each other.

The beneficial effects of the utility model are as follows:

1, the utility model is to having been carried out multi-level sorting by the material of sorting, efficiency of separation height; And adopt the principle of screening back selection by winnowing earlier, reached the purpose of energy efficient;

2, all do Wear-resistant Treatment or adopt high-abrasive material to make with the position that material fully contacts, prolonged service life of equipment;

3, adopt the mode of piecemeal making for the consumable accessory of need periodic replacement, reduced the weight of consumable accessory, be easy to mounting or dismounting.

Description of drawings

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

The specific embodiment

Referring to accompanying drawing, combined type classifier, include outer cylinder body 1, be set with inner barrel 2 in the outer cylinder body 1, the upper end of outer cylinder body 1 is equipped with split-pole motor 3 by support, the output shaft lower end of split-pole motor 3 is fixedly connected with the rotating shaft 4 that extend into outer cylinder body 1 inside, the lower end of rotating shaft 4 is equipped with the classifying turbine 5 that is positioned at inner barrel 2 tops, the rotating shaft 4 outer hollow shafts 6 that are set with, hollow shaft 6 is by bulk cargo motor-driven 7, the lower end of hollow shaft 6 is equipped with bulk cargo dish 8, the shell body of the top of bulk cargo dish 8 has charging aperture 9, the lower end of outer cylinder body 1 has discharging opening 10, inner barrel 2 lower ends are conical hopper 11, be furnished with mesh on the sidewall of hopper 11, hopper 11 is connected air classifier 12, air classifier comprises the air intake passage that crosses, air-out passage 13, tapping channel 14, blanking channel 15, its intersection is fixed with the bulk cargo plate 16 of interlaced arrangement, bulk cargo plate 16 is through Wear-resistant Treatment, and arrange each other and be herringbone, air classifier is built in the outer cylinder body, and air intake passage, tapping channel, blanking channel all passes the sidewall of outer cylinder body; Air classifier also can be placed on outside the outer cylinder body.

Claims

1. combined type classifier, include outer cylinder body, be set with inner barrel in the outer cylinder body, the upper end of outer cylinder body is equipped with split-pole motor by support, the output shaft lower end of split-pole motor is fixedly connected with the rotating shaft that extend into outer cylinder body inside, the lower end of rotating shaft is equipped with the classifying turbine that is positioned at the inner barrel top, rotating shaft is set with hollow shaft outward, hollow shaft is by breaing up motor-driven, the lower end of hollow shaft is equipped with the bulk cargo dish, the shell body of the top of bulk cargo dish has charging aperture, and the lower end of outer cylinder body has discharging opening, it is characterized in that: described inner barrel lower end is conical hopper, be furnished with mesh on the sidewall of hopper, hopper is connected air classifier, and described air classifier comprises the air intake passage that crosses, the air-out passage, tapping channel, blanking channel, its intersection is fixed with the bulk cargo plate of interlaced arrangement.

2. combined type classifier according to claim 1 is characterized in that: described air classifier is built in the outer cylinder body, and air intake passage, tapping channel, blanking channel all pass the sidewall of outer cylinder body; Air classifier or be placed on outside the outer cylinder body.

3. combined type classifier according to claim 1 is characterized in that: described bulk cargo plate is through Wear-resistant Treatment, and arrangement is herringbone each other.