SU988364A1 - Gravitation pneumatic classifier - Google Patents

Description

The invention relates to the pneumatic classification of various bulk materials in: upstream air flow and can be used to separate materials with a grain size of no more than 10 mm into two products along a 5-O, 5 mm boundary grain.

Known separator, including the separation shaft with the filling of shelves, loading and unloading devices Cl}

The disadvantages of its effect are low separation quality, low productivity.

The closest in technical essence and the achieved result to the proposed is a device comprising identical separation sections with pouring devices, loading and unloading devices 2.

The disadvantages of it are poor quality classification and low productivity.

The purpose of the invention is to improve the quality of classification and performance of the classifier.

The goal is achieved by the fact that in the device, including identical separation sections with pouring

5 devices, loading and unloading devices, pouring methods are made in the form of a set in parallel with the gaps

one under the other plates, with longitudinal slits, the slots being made 1y the entire length of the plates and arranged in a checkerboard pattern.

The material, moving along a shelf, blows air, i.e. the separation process takes place on the shelf itself, and not just in the main separation zone. The chess arrangement of the holes prevents the direct failure of the material

20 in the middle of sekspo and provides 2-3-fold transfer of large particles and their winnowing. This design of the pouring element contributes the most

3 & 663b4.4

uniform distribution of the material in the entire volume of the section, which causes

over the cross-section of the apparatus and a more uniform, better separation, when applied at the air flow rates of high flow concentrations. So

Due to this, the separation process in a pro-image, separation occurs not only in the entire volume of the section (including jko in the main separation zone (space and on the shelf), better quality between the wall and the bottom image

(the acceleration of the material on the shelf and the regiments are excluded), but also in the entire volume of the section,

the formation of high uneven lo large class, descending to meet

kalnyh concentrations of material), more than a stream, passes the following

intensively (repeated penetration to the separation stage in the lower

coarse particles on the shelf), which allows for a section. From the lower section, a larger prodostichit better separation separates the duct into the bunker 8. Small class

and higher performance. From the power section under the action of air. FIG. Figure 1 shows the device, both stream rising to a higher view; in fig. 2 is an enlarged view of the section where the melting point device is enriched; in fig. 3 particles.

section aa m of fig. 2; in fig. 4 is a view of Rising in this way, it is a full fng. 2.places with air enters the cyclone 3,

The device includes a shaft of class 1, where it is separated from the air and enters the fixer with the bunker 7 installed in it, the hopper 7 is cleaned. The cleaned air comes through pipe fittings 2, the cyclone 3 for the wire enters the suction of the fine product from the air, the fan tubes 4. fan 4, valve 5 for adjustment Use the proposed device for the air flow rate, feeder 6, allows to improve the quality of separation of the hoppers of small 7 and large 8 products by 25 10%, to increase productivity by that. Pouring devices 2 in the range of 15-20%, increase the efficiency p, gasdenenes from individual plates 9, set by 10%. parallel parallel one below the other with a gap. Plates 9 have the entire length

Claims (2)

slits 10 located in the staggered JQ. Invention formula is in order. CL gap between plates and The slot width b is 1.5–5 times the Gravitational pneumatic class size of the largest plates. A sifter that includes identical sepas. The device works as follows: deputy equipment mk, loading and unloading material Source material by a feeder 6 according to jigs, I distinguish - is given to any of the middle peresyp and and so that, in order to increase Other devices 2, on which the quality of the classification starts and the classification process is productive. Since the classifier, the pour-over support poles consist of several sections, they are made in the form of a set plates 9, installed parallel-parallel with gaps, one under the other with a gap, having under the other plates with the longitudinal pro the entire length of the slot Yu, and with the slots, the slots being made along zi are arranged in a checkerboard pattern, these are the length of the plates and are located in uiax- when the material is moving in a peresypatum order, it experiences a dividing element to the element. exposure to air flow. Moreover, taken into account during the examination the separation process proceeds intensively-1. USSR author's certificate but, as the material when pouring fe 353759, cl. B 07 B 4 / O 2, 1972. subject to repeated loosening. 2. USSR author's certificate In this case, more uniform application No. 2938973/29-OZ occurs, the distribution of material and air in cl. In O7 In 4/00, 1980 (prototype). ftn-iD5 V /f./r. Have five Phi1. juuZHjEK Patd LIVE ten s