CN213996672U

CN213996672U - Three-layer rotary grading device

Info

Publication number: CN213996672U
Application number: CN202022325773.0U
Authority: CN
Inventors: 梁福功; 焦勇; 孙建辉; 赵传浩; 王桂卿; 徐斌
Original assignee: Shandong Tianyuan Feed Co ltd
Current assignee: Shandong Tianyuan Feed Co ltd
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-08-20
Anticipated expiration: 2030-10-19

Abstract

The utility model belongs to the technical field of the grading plant, especially, relate to a three-layer grading plant that circles round, the device comprises a device body, device body top is provided with the loading hopper, this internal from the top down has set gradually the one-level shale shaker, second grade shale shaker and tertiary shale shaker, the one-level shale shaker, the equal downward sloping setting of second grade shale shaker and tertiary shale shaker, the device body is at the one-level shale shaker, the lower of second grade shale shaker and tertiary shale shaker all is provided with the discharge gate, the discharge gate passes through the passageway that gathers materials and retrieves the chamber and is connected, the device body is at the one-level shale shaker, the highest point of second grade shale shaker and tertiary shale shaker all is provided with sweeps the mouth, it passes through the pipeline and is connected with high-pressure gas to sweep the mouth. The device can fully screen the fodder through setting up the hierarchical shale shaker of three-layer, has better screening effect, guarantees the screening quality and the efficiency of fodder.

Description

Three-layer rotary grading device

Technical Field

The utility model belongs to the technical field of the grading plant, especially, relate to a three-layer grading plant that circles round.

Background

The feed is generally prepared by mixing and crushing various raw materials, and in the process of producing and processing the feed, in order to improve the overall quality of the feed, a grading device is often needed to screen the produced feed so as to obtain the feed with consistent quality. However, the screening effect of the grading device in the prior art is general, and the screening quality and efficiency of the feed are affected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a grading plant circles round of three-layer, the device can fully filter the fodder through setting up the hierarchical shale shaker of three-layer, has better screening effect, guarantees the screening quality and the efficiency of fodder.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a three-layer grading plant that circles round, includes the device body, device body top is provided with the loading hopper, this internal from the top down of device has set gradually one-level shale shaker, second grade shale shaker and tertiary shale shaker, the equal downward sloping setting of one-level shale shaker, second grade shale shaker and tertiary shale shaker, the device body all is provided with the discharge gate in the lower of one-level shale shaker, second grade shale shaker and tertiary shale shaker, the discharge gate is connected with the recovery chamber through gathering materials the passageway, the device body all is provided with at the highest point of one-level shale shaker, second grade shale shaker and tertiary shale shaker and sweeps the mouth, it is connected with high-pressure gas through the pipeline to sweep the mouth.

When the three-layer convolution grading device is used, materials are firstly poured into the feeding hopper and then fall onto the first-stage vibrating screen from the feeding hopper, large-particle materials are left on the first-stage vibrating screen under the vibration effect, and small-particle materials fall onto the second-stage vibrating screen downwards through the first-stage vibrating screen; under the action of vibration, the medium-sized particle materials are left on the secondary vibrating screen, and the small-sized particle materials fall down onto the third-stage vibrating screen through the secondary vibrating screen; under the vibration effect, the small particle materials are left on the three-stage vibrating screen, and the small particle materials fall to the bottom of the device body through the three-stage vibrating screen. The valve at the discharge hole is opened, the materials sieved out on the first-stage vibrating screen, the second-stage vibrating screen and the third-stage vibrating screen enter the recycling cavity through the material collecting channels respectively through the discharge holes, and the materials at the bottom of the device body are finally discharged from the discharge hole at the bottom of the device body. And the setting of sweeping the mouth can utilize highly-compressed air to sweep the material on the shale shaker at different levels downwards, guarantees the material clean up on the shale shaker.

Preferably, the highest point of the primary vibrating screen and the lowest point of the secondary vibrating screen are positioned on one side. The lowest point of the second-stage vibrating screen and the highest point of the third-stage vibrating screen are located on one side, so that the screening effect is better.

The discharge gate of loading hopper among the prior art is located device body top intermediate position mostly, and the material directly falls the centre department of shale shaker after falling, because the equal downward sloping setting of shale shaker, the material can be to the motion of minimum department, and causes to be located the first section screen cloth of eminence and does not play the screening effect. And the utility model discloses a discharge gate of loading hopper is located the top of one-level shale shaker peak, and the material directly falls in one-level shale shaker peak from the discharge gate of loading hopper, and the material can be in the same direction as one-level shale shaker from peak and roll to minimum department always under the effect of vibration, can sieve the material by make full use of screen cloth.

Advantageous effects

The utility model discloses a grading plant circles round of three-layer, the device can fully filter the fodder through setting up the hierarchical shale shaker of three-layer, has better screening effect, guarantees the screening quality and the efficiency of fodder. When the three-layer convolution grading device is used, materials are firstly poured into the feeding hopper and then fall onto the first-stage vibrating screen from the feeding hopper, large-particle materials are left on the first-stage vibrating screen under the vibration effect, and small-particle materials fall onto the second-stage vibrating screen downwards through the first-stage vibrating screen; under the action of vibration, the medium-sized particle materials are left on the secondary vibrating screen, and the small-sized particle materials fall down onto the third-stage vibrating screen through the secondary vibrating screen; under the vibration effect, the small particle materials are left on the three-stage vibrating screen, and the small particle materials fall to the bottom of the device body through the three-stage vibrating screen. The valve at the discharge hole is opened, the materials sieved out on the first-stage vibrating screen, the second-stage vibrating screen and the third-stage vibrating screen enter the recycling cavity through the material collecting channels respectively through the discharge holes, and the materials at the bottom of the device body are finally discharged from the discharge hole at the bottom of the device body. And the setting of sweeping the mouth can utilize highly-compressed air to sweep the material on the shale shaker at different levels downwards, guarantees the material clean up on the shale shaker.

Drawings

FIG. 1 is a schematic structural view of a three-layer cyclone classification device described in example 1 of this patent;

in the figure, 1: a hopper; 2: a first-stage vibrating screen; 3: a secondary vibrating screen; 4: a third-stage vibrating screen; 5: a discharge port; 6: a material collection channel; 7: a recovery chamber; 8: a purge port; 9: and (4) a valve.

Detailed Description

Hereinafter, the present invention will be described in detail. Before the description is made, it should be understood that the terms used in the present specification and the appended claims should not be construed as limited to general and dictionary meanings, but interpreted based on the meanings and concepts corresponding to technical aspects of the present invention on the basis of the principle that the inventor is allowed to define terms appropriately for the best explanation. Accordingly, the description proposed herein is just a preferable example for the purpose of illustrations only, not intended to limit the scope of the invention, so it should be understood that other equivalents and modifications could be made thereto without departing from the spirit and scope of the invention.

The following examples are given by way of illustration of embodiments of the invention and are not intended to limit the invention, and those skilled in the art will appreciate that modifications within the scope of the invention do not depart from the spirit and scope of the invention.

Example 1

As shown in figure 1, the three-layer rotary grading device comprises a device body, wherein a charging hopper 1 is arranged at the top of the device body, the device body is internally provided with a primary vibrating screen 2, a secondary vibrating screen 3 and a tertiary vibrating screen 4 from top to bottom in sequence, the first-stage vibrating screen, the second-stage vibrating screen and the third-stage vibrating screen are all arranged in a downward inclined mode, the first-stage vibrating screen, the second-stage vibrating screen and the third-stage vibrating screen are all provided with vibrators, the device body is provided with discharge ports 5 at the lowest parts of the first-stage vibrating screen, the second-stage vibrating screen and the third-stage vibrating screen (the lowest point of the discharge ports is flush with the lowest point of the vibrating screens at all stages), the discharge gate passes through gathering materials passageway 6 and is connected with recovery chamber 7, the device body all is provided with the mouth 8 that sweeps in the highest place of one-level shale shaker, second grade shale shaker and tertiary shale shaker, it is connected with high-pressure gas through the pipeline to sweep the mouth.

The highest point of the first-stage vibrating screen and the lowest point of the second-stage vibrating screen are positioned on one side. The lowest point of the second-stage vibrating screen and the highest point of the third-stage vibrating screen are located on one side, so that the screening effect is better.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or that equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention, which is claimed.

Claims

1. A three-layer rotary grading device is characterized in that: the device comprises a device body, wherein a feeding hopper is arranged at the top of the device body, a primary vibrating screen, a secondary vibrating screen and a tertiary vibrating screen are sequentially arranged in the device body from top to bottom, the primary vibrating screen, the secondary vibrating screen and the tertiary vibrating screen are all arranged in a downward inclined manner, discharge ports are arranged at the lowest positions of the primary vibrating screen, the secondary vibrating screen and the tertiary vibrating screen of the device body, the discharge ports are connected with a recovery cavity through a material collecting channel, purging ports are arranged at the highest positions of the primary vibrating screen, the secondary vibrating screen and the tertiary vibrating screen of the device body, and the purging ports are connected with high-pressure gas through pipelines; the highest point of the first-stage vibrating screen and the lowest point of the second-stage vibrating screen are positioned on one side; the lowest point of the secondary vibrating screen and the highest point of the tertiary vibrating screen are positioned on one side; and a discharge port of the charging hopper is positioned above the highest point of the primary vibrating screen.