CN110935628A

CN110935628A - Multistage screening and separating device

Info

Publication number: CN110935628A
Application number: CN201911167643.4A
Authority: CN
Inventors: 窦建强
Original assignee: Xian Youxin Electromechanical Engineering Co Ltd
Current assignee: Xian Youxin Electromechanical Engineering Co Ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-03-31

Abstract

The invention discloses a multi-stage screening and separating device which comprises a machine body, wherein a plurality of grading sieves are arranged in the machine body, each grading sieve comprises a supporting plate, mounting holes are formed in the supporting plates, a rectangular sieve is arranged in each mounting hole, a plurality of sieve pores are formed in the top of each rectangular sieve, a sliding rail is arranged at the bottom of each rectangular sieve, an L-shaped guide pipe is slidably mounted on each sliding rail, each L-shaped guide pipe extends out of the side part of the machine body, and a discharge hole is formed in the bottom of the machine body. The multi-stage screening and separating device can screen materials with different particle sizes, and each stage of grading screen is not required to be detached for respective extraction, so that the working efficiency is greatly increased.

Description

Multistage screening and separating device

Technical Field

The invention belongs to the technical field of mechanical equipment, and particularly relates to a multi-stage screening and separating device.

Background

The operation of dividing the mixed material with different particle sizes into different particle size grades by using a perforated screen surface is called screening. Screening is generally used for coarser material, i.e. material greater than 0.25 mm. The multi-purpose classification of finer material, i.e. less than 0.2 mm (classification is an operation of dividing into different size fractions according to the sedimentation velocity of the material in a medium (water or air)). In recent years, however, fine sieves are being used to grade ground ore products at home and abroad, and the grading efficiency is generally higher

The screening purposes are different, and the screening operation can be divided into five types, namely (1) independent screening, so as to obtain a final product suitable for the requirements of users. For example, in the ferrous metallurgy industry, the high iron-containing iron-rich ore is often screened into different size fractions, the qualified large iron ore is smelted in a blast furnace, and the fine ore is briquetted or sintered and briquetted into the furnace. (2) Secondary screening this screening is used primarily in the crushing operations of the mill to assist in the crushing operation. There are generally pre-screening and inspection screening. Pre-screening refers to screening of the ore before it enters the crusher, where the fraction that is already acceptable to the crusher is separated from the ore by a screen, such as a grate screen, a screen installed before the coarse crusher, and the undersize product thereof. This reduces the amount of ore entering the crusher and increases the output of the crusher. The inspection and screening refers to screening after the ore is crushed, and aims to ensure that the final crushed ore product meets the granularity requirement of ore grinding operation, so that the unqualified crushed ore product returns to the crushing operation, and the screening before a medium and fine crusher plays roles of pre-screening and inspection and screening. Inspection of the screen can improve the utilization of the crushing plant, similarly to the classifier and the mill, in a closed cycle operation to improve the grinding efficiency. (3) The purpose of the preparation screening is to prepare for the next job. For example, in a gravity concentration plant, materials are screened and graded before jigging, and products with different thicknesses of coarse, medium and fine are graded and jigged. (4) If the distribution difference of useful components in the material in each grade is very large, the useful components can be screened and classified to obtain the grade with different quality, and the low-quality grade is screened, so that the grade of the material is correspondingly improved, and the screening is sometimes called as screening. (5) The purpose of dewatering, screening and screening is to remove water from the material, which is common in coal washery. In addition, when the cement content of the material is high, the material is also desliming by screening.

However, when multi-stage screening is performed, the existing equipment basically has no functions which are respectively adopted.

Disclosure of Invention

The invention aims to provide a multi-stage screening and separating device, which solves the problem that the existing equipment does not have the function of respectively adopting when used for carrying out multi-stage screening

In order to solve the problems, the technical scheme adopted by the invention is that the multistage screening and separating device is characterized by comprising a machine body, wherein a plurality of classifying screens are arranged in the machine body, each classifying screen comprises a supporting plate, a mounting hole is formed in each supporting plate, a rectangular screen is arranged in each mounting hole, a plurality of screen holes are formed in the top of each rectangular screen, a sliding rail is arranged at the bottom of each rectangular screen, an L-shaped guide pipe is slidably mounted on each sliding rail, each L-shaped guide pipe extends out of the side part of the machine body, and a discharge hole is formed in the bottom of the machine body.

The technical proposal of the invention also has the following characteristics,

the number of the classifying screens is two.

The L-shaped guide pipe is characterized by further comprising a plurality of straight pipes, and the discharge port of the L-shaped guide pipe is connected to the middle of the corresponding straight pipe.

And a discharge hole at the bottom of the machine body is provided with a receiving hopper.

The receiving hopper is of a conical structure.

The invention has the beneficial effects that: according to the multi-stage screening and separating device, the plurality of classifying screens are arranged in the device, so that materials can be screened according to different particle sizes, and each stage of classifying screen is not required to be detached for extraction, so that the working efficiency is greatly improved.

Drawings

FIG. 1 is a schematic view of a multi-stage sieving and separating device according to the present invention.

In the figure: 1. the device comprises a machine body, 2 sliding rails, 3 supporting plates, 4 rectangular sieves, 5 straight pipes, 6L-shaped flow guide pipes and 7 material receiving hoppers.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and detailed description.

As shown in fig. 1, the multistage screening and sorting device of the present invention includes a machine body 1, a plurality of classifying screens are arranged in the machine body 1, each classifying screen includes a supporting plate 3, a mounting hole is arranged on the supporting plate 3, a rectangular screen 4 is arranged in the mounting hole, a plurality of screen holes are arranged on the top of the rectangular screen 4, a slide rail 2 is arranged at the bottom of the rectangular screen 4, an L-shaped flow guide pipe 6 is slidably mounted on the slide rail 2, the L-shaped flow guide pipe 6 extends out from the side of the machine body 1, and a discharge hole is arranged at the bottom of the machine body 1.

The plurality of classifying screens are distributed up and down, the classifying screen at the uppermost end has the largest screening particle size, and the classifying screen at the lowermost end has the smallest screening particle size. Backup pad 3 is used for bearing rectangle sieve 4, can now set up a mounting hole in backup pad 3, is provided with a baffle respectively in the both sides at rectangle sieve 4 top, inserts back in the mounting hole with rectangle sieve 4, and the baffle of rectangle sieve 4 both sides can be kept out on the outer edge of mounting hole, has accomplished the installation to rectangle sieve 4 promptly. The material is poured into the machine body 1 from the upper part, the material is filtered through the rectangular sieve 4 at the uppermost end, the discharge hole of the rectangular sieve 4 is not blocked by the L-shaped guide pipe 6 at the uppermost end on one side of the slide rail 2, and smaller material particles fall into the rectangular sieve 4 at the next level. If the material after filtering can satisfy the demands, the L shape honeycomb duct 6 of the top is plugged up the discharge gate of this rectangle sieve 4 at the middle part of slide rail 2, and less material will flow out through L shape honeycomb duct 6 this moment.

As shown in fig. 1, in the multi-stage sieving and separating device of the present invention, the number of the classifying screens is two, so that the secondary filtration can be completed, and the number of the classifying screens can be increased according to the actual requirement to meet the corresponding requirement.

As shown in fig. 1, the multistage sieving and separating device further comprises a plurality of straight pipes 5, and the discharge port of the L-shaped draft tube 6 is connected to the middle of the corresponding straight pipe 5.

The straight pipe 5 can be used for discharging materials on the one hand, and on the other hand, the staff can push the straight pipe 5 to finish the sliding position of the L-shaped guide pipe 6 on the slide rail 2, so as to meet the purpose of whether the discharge hole of the rectangular screen 4 is blocked or not.

As shown in fig. 1, in the multi-stage sieving and separating device of the present invention, a material receiving hopper 7 is disposed at a material outlet at the bottom of the machine body 1.

The receiving hopper 7 is used for bearing the finest screened materials

As shown in fig. 1, in the multi-stage sieving and separating device of the present invention, the receiving hopper 7 has a tapered structure.

The material receiving hopper 7 is designed to be of a conical structure, so that the materials can be poured out conveniently.

In summary, the multi-stage screening and separating device provided by the invention is internally provided with the plurality of classifying screens, so that materials can be screened according to different particle sizes, and each stage of classifying screen is not required to be detached for respective extraction, thereby greatly increasing the working efficiency.

Claims

1. The utility model provides a device is got to multistage screening, branch, its characterized in that, includes organism (1), be provided with a plurality of classifying screens in organism (1), every the classifying screen contains backup pad (3), be provided with the mounting hole on backup pad (3), be provided with rectangle sieve (4) in the mounting hole, the top of rectangle sieve (4) is provided with a plurality of sieve meshes, and the bottom of rectangle sieve (4) is provided with slide rail (2), slidable mounting has L shape honeycomb duct (6) on slide rail (2), L shape honeycomb duct (6) are stretched out from the lateral part of organism (1), and the bottom of organism (1) is provided with the discharge gate.

2. The multi-stage screening, sorting device of claim 1, wherein said sizing screens are two in number.

3. The multistage screening and separating device according to claim 1, further comprising a plurality of straight pipes (5), wherein the discharge port of the L-shaped draft tube (6) is connected to the middle part of the corresponding straight pipe (5).

4. The multi-stage screening, separating and taking device according to claim 1, wherein a discharge port at the bottom of the machine body (1) is provided with a receiving hopper (7).

5. A multi-stage screening, sorting device according to claim 1, wherein said receiving hopper (7) is of conical configuration.