CN210230309U

CN210230309U - Face sand separation device with good screening effect

Info

Publication number: CN210230309U
Application number: CN201920983140.3U
Authority: CN
Inventors: Yu Li; 李玉; Jun Zuo; 左军; Tao Wang; 王涛
Original assignee: Zhengzhou Xinyuan Mechanical And Electrical Engineering Co ltd
Current assignee: Zhengzhou Xinyuan Mechanical And Electrical Engineering Co ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-04-03
Anticipated expiration: 2029-06-27

Abstract

The utility model relates to a stone material screening equipment field, especially a screening effectual face sand separator. The problem of among the prior art product screening efficiency low, the maintenance cost is high is solved. The utility model comprises a conical spiral separation mechanism, wherein a feeding pipeline and a discharging pipeline are arranged on the conical spiral separation device, the feeding pipeline is used as the outlet of a shunt pipeline, and the inlet end of the feeding pipeline is connected with a rotational flow concentration mechanism; the conical spiral separation mechanism comprises a spiral separation cabin in a rotator shape, a spiral stirring blade is arranged in the spiral separation cabin and externally connected with a power source for driving the spiral separation cabin to rotate, the diameter of the cabin body of the spiral separation cabin is gradually reduced from an inlet end to an outlet end, a main shaft of the cabin body is gradually increased from the inlet end to the outlet end, and an inclination angle larger than 8 degrees is formed between the main shaft and the horizontal plane. Has the advantages that: the device can thoroughly separate the surface sand in the slurry, so that the separated sewage is easier to be used for daily production, the service life of the tail end bearing is effectively prolonged, the maintenance frequency of the device is reduced, and meanwhile, the energy consumption is low.

Description

Face sand separation device with good screening effect

Technical Field

The utility model relates to a stone material screening equipment field, especially a screening effectual face sand separator.

Background

A sand-stone separator is a core device of a concrete recovery system and is mainly used for cleaning, separating and recycling sewage of a cleaning tank car and sand and stone in residual concrete. The prior surface sand separation equipment commonly used in the market mainly comprises a horizontal drum screen, a common straight screw, a filter press and the like. The improvement of the sand separation technology is also aimed at the above-mentioned equipment, for example, in the published Chinese patent document with application number CN201320284110.6, named as an automatic block clearing mechanism of a sand separator roller, a sand separator which can realize the good dredging effect by the combination of the roller and a screen is disclosed, and for example, in the patent with application number CN201521000030.9, named as a feeding device of the sand separator, a feeding device of the sand separator which can prevent the mixture from being coagulated on a pushing screw is disclosed to improve the screening effect.

However, the related art finds that the following defects exist in the long-term production process:

1. the main defects of the horizontal drum screen are that only large sand in concrete can be separated, and the service life of the screen is seriously influenced by long-term soaking in sewage.

2. The main defects of the common straight spiral are that the facing sand cannot be thoroughly separated, the service life of the spiral tail end seal is short, and the maintenance is extremely inconvenient.

3. The filter press mainly has the problems that although the face sand can be thoroughly separated, a large amount of solid waste is generated after separation, zero emission cannot be realized, and the filter cloth needs to be frequently replaced, so that the production cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems of low product screening efficiency and high maintenance cost in the prior art.

The utility model has the following concrete scheme:

the designed flour-sand separating device with good screening effect comprises a conical spiral separating mechanism, wherein a feeding pipeline and a discharging pipeline are arranged on the conical spiral separating mechanism, the feeding pipeline is used as an outlet of a diversion pipeline, and an inlet end of the feeding pipeline is connected with a rotational flow concentrating mechanism; the conical spiral separation mechanism comprises a rotary spiral separation cabin, a spiral stirring blade is arranged in the spiral separation cabin and is externally connected with a power source for driving the spiral separation cabin to rotate, the diameter of the cabin body of the spiral separation cabin is gradually reduced from an inlet end to an outlet end, and a main shaft of the cabin body is gradually increased from the inlet to the outlet and forms an inclination angle larger than 8 degrees with the horizontal plane; the cyclone concentration mechanism comprises at least 2 cyclone separators arranged in a branch way, the outlets of the cyclone separators are communicated with a material guide groove, and the outlets of the material guide groove are connected with the feeding pipeline.

Or the device also comprises a secondary circulation branch, wherein the secondary circulation branch comprises a secondary circulation discharge pipe arranged on the cabin body, and the other end of the secondary circulation discharge pipe is connected with a feeding port of the cyclone separator.

In a specific implementation, the material guide groove is in a U-shaped groove shape, and the inlet end of the material guide groove is higher than the outlet end of the material guide groove. And a discharge pipe with a downward opening is arranged at the outlet end of the spiral separation cabin. The power source comprises an automatic variable frequency motor. And a mud blocking tile is arranged at the junction of the bottoms of the stirring blades on the inner wall of the spiral separation cabin. And a feeding port of the cyclone separator is connected with a cone hopper pool or a flow guide channel.

Or the outlet of the secondary circulation branch is communicated with the cone bucket pool or the diversion channel. The stirring blade is a blade spirally rising along the axial direction.

The beneficial effects of the utility model reside in that:

the ultra-low speed operation and intermittent operation of the transmission system enable the equipment to thoroughly separate the surface sand in the slurry, so that the separated sewage is easier to be used for daily production, the finished product quality is high, the efficiency is not influenced, and zero emission of production in a mixing plant is realized;

the design of the conical screw ensures that the tail end of the screw is thoroughly separated from the slurry, thereby effectively prolonging the service life of the tail end bearing, reducing the maintenance frequency of the equipment and reducing the later maintenance cost;

furthermore, the automatic frequency conversion system ensures that the product can not only ensure the separation capability but also reduce the energy consumption.

Drawings

FIG. 1 is a front view of the structure of the present invention;

fig. 2 is a left side view of the structure of the present invention;

FIG. 3 is a rear view of the structure of the present invention;

FIG. 4 is a schematic structural view of a stirring blade;

names of components in the drawings: 1. a cyclone separator support; 2. a conical spiral separation mechanism support; 3. a power source support; 4. a power source; 5. a material guide chute; 6. an outlet of the cyclonic separator; 7. a cyclone separator; 8. a feeding pipeline; 9. a coupling; 10. a mud-guard tile; 11. stirring blades; 12. a cabin body; 13. a secondary circulation discharge pipe; 14. a discharge pipeline.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example 1

Example 1: a flour and sand separating device with good screening effect is designed, referring to figures 1 to 3, and comprises a conical spiral separating mechanism, wherein a feeding pipeline 8 and a discharging pipeline 14 are arranged on the conical spiral separating mechanism, the feeding pipeline 8 is used as an outlet of a diversion pipeline, and an inlet end of the diversion pipeline is connected with a rotational flow concentrating mechanism;

the conical spiral separation mechanism comprises a rotary spiral separation cabin, a spiral stirring blade 11 is arranged in the spiral separation cabin and is externally connected with a power source 4 for driving the spiral separation cabin to rotate, the diameter of a cabin body 12 of the spiral separation cabin is gradually reduced from an inlet end to an outlet end, and a main shaft of the cabin body 12 is gradually increased from the inlet end to the outlet end and forms an inclination angle larger than 8 degrees with the horizontal plane;

the cyclone concentration mechanism comprises at least 2 cyclone separators 7 which are arranged in a branch way, the outlets 6 of the cyclone separators are communicated with a material guide chute 5, and the outlets of the material guide chute 5 are connected with a material inlet pipeline 8.

The material guide chute 5 is in a U-shaped chute shape, and the inlet end of the installation position of the material guide chute is higher than the outlet end of the material guide chute.

The outlet end of the spiral separation cabin is provided with a discharge pipe with a downward opening.

The power source 4 comprises an automatic variable frequency motor. The variable running speed ratio and the intermittent starting mode can be realized, and the device is suitable for different working conditions.

The joint of the bottom of the stirring blade 11 on the inner wall of the spiral separation chamber is provided with a mud-blocking tile 10. The mud guard tile 10 is used for preventing the pipeline from being blocked at the joint of the stirring blades 11 caused by backflow of materials, and the service life of the equipment is prolonged. The feed inlet of the cyclone separator 7 is connected with a cone hopper pool or a diversion channel. Cone pools or canals are known in the art and are not shown in the figures.

The specific working process comprises the following steps;

firstly, collecting the slurry which is preliminarily separated and contains a large amount of face sand by a slurry collection system (a conical hopper pool and a diversion channel or pipeline), pumping the slurry into a rotary flow separation mechanism by a sand pump, concentrating the slurry by the rotary flow separation mechanism, injecting the concentrated slurry into a conical spiral separation mechanism, and introducing clear water (sewage containing a small amount of cement and coal ash) without the face sand into a stirring pool for later use;

the concentrated slurry is extracted from the surface sand and part of cement powder by a conical spiral separation mechanism and is put into a fixed stockpiling area for recycling;

the power source 4 with automatic frequency conversion ensures that the surface sand entering the conical spiral separation mechanism is extracted in an accelerating way under the condition of separating the whole vehicle.

Embodiment 2, the principle of the present embodiment is the same as embodiment 1, and the specific difference is that: the device also comprises a secondary circulation branch, the secondary circulation branch comprises a secondary circulation discharge pipe 13 arranged on the cabin body 12, and the other end of the secondary circulation discharge pipe 13 is connected with a feeding port of the cyclone separator 7. In the working process, the outlet of the secondary circulation branch is communicated with the cone bucket pool or the diversion channel and can also be connected with the cyclone separator 7. The stirring blade 11 is a spiral ascending blade along the axial direction. Multiple internal circulations enable the design to further improve the efficiency of sand surface separation and improve the quality of finished products.

Finally, it should be noted that: 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 equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an effectual face sand separator sieves which characterized in that: the device comprises a conical spiral separation mechanism, wherein a feeding pipeline (8) and a discharging pipeline (14) are arranged on the conical spiral separation mechanism, the feeding pipeline (8) is used as an outlet of a shunt pipeline, and the inlet end of the feeding pipeline is connected with a rotational flow concentration mechanism;

the conical spiral separation mechanism comprises a spiral separation cabin in a rotary body shape, a spiral stirring blade (11) is arranged in the spiral separation cabin and is externally connected with a power source (4) for driving the spiral separation cabin to rotate, the diameter of a cabin body (12) of the spiral separation cabin is gradually reduced from an inlet end to an outlet end, and a main shaft of the cabin body (12) is gradually increased from the inlet to the outlet and forms an inclination angle larger than 8 degrees with the horizontal plane;

the cyclone concentration mechanism comprises at least 2 cyclone separators (7) which are arranged in a branch way, the outlets (6) of the cyclone separators are communicated with a material guide groove (5), and the outlets of the material guide groove (5) are connected with the feeding pipeline (8).

2. The apparatus of claim 1, further comprising: still include secondary circulation branch road, secondary circulation branch road include secondary circulation discharging pipe (13) that set up on cabin body (12), the other end of secondary circulation discharging pipe (13) is connected the pan feeding mouth of cyclone (7).

3. The apparatus of claim 1, further comprising: the guide chute (5) is in a U-shaped chute shape, and the inlet end of the installation position of the guide chute is higher than the outlet end of the guide chute.

4. The apparatus of claim 1, further comprising: and a discharge pipe with a downward opening is arranged at the outlet end of the spiral separation cabin.

5. The apparatus of claim 4, wherein the apparatus further comprises: the power source (4) comprises an automatic variable frequency motor.

6. The apparatus of claim 1, further comprising: and a mud blocking tile (10) is arranged at the junction of the bottoms of the stirring blades (11) on the inner wall of the spiral separation cabin.

7. The apparatus of claim 1, further comprising: and a feeding port of the cyclone separator (7) is connected with a cone hopper pool or a backflow channel.

8. The apparatus of claim 2, further comprising: and the outlet of the secondary circulation branch is communicated with the cone bucket pool or the diversion channel.

9. The apparatus of claim 1, further comprising: the stirring blade (11) is a spiral ascending blade along the axial direction.