CN220635347U

CN220635347U - Soil screening device

Info

Publication number: CN220635347U
Application number: CN202322283604.9U
Authority: CN
Inventors: 魏恒; 李敏敏; 唐嫚; 于泓; 和丽萍; 魏中华; 崔灿文; 龙伟; 张秋霞; 朱飞
Original assignee: Yunnan Academy Of Ecological And Environmental Sciences
Current assignee: Yunnan Academy Of Ecological And Environmental Sciences
Priority date: 2023-08-24
Filing date: 2023-08-24
Publication date: 2024-03-22
Anticipated expiration: 2033-08-24

Abstract

The application relates to a soil screening device belongs to soil spiral screening mechanism technical field. The device comprises a slideway, wherein the slideway is spirally and vertically arranged, a feed inlet is formed at the upper end of the slideway, and a discharge outlet is formed at the lower end of the slideway; and the discharging pipes are arranged in the middle of the side face of the slideway, and at least two discharging pipes are arranged at intervals along the vertical direction. According to the soil sieving machine, soil to be sieved slides downwards from the spiral slideway, and the sliding height of soil particles in the slideway gradually rises along with the rising of the speed of the soil particles until the soil particles are sieved out from the discharging pipe. Because the materials fall down in-process, the initial momentum is different when the soil particles with different particle sizes slide down due to different masses, so that the heights and the times of the soil particles with different sizes are different, the soil particles with different sizes are effectively separated, and the screening efficiency is high and the accuracy is good.

Description

Soil screening device

Technical Field

The application belongs to the technical field of soil spiral screening mechanisms, and specifically relates to a soil screening device.

Background

In soil research and soil pollutant analysis, it is necessary to screen the soil to obtain soil particles of different sizes, so that more accurate analysis of the soil is performed. In the prior art, two kinds of manual screening and mechanical screening are adopted, the manual screening is high in labor intensity and low in efficiency, and most of mechanical screening equipment adopts a screen to screen, so that the screening accuracy is problematic. For example, screens are prone to clogging, resulting in lower screening efficiency; the size of the sieve mesh pores is difficult to control accurately, so that the sieving precision is not high. In general, the existing screening technology is either labor-intensive and inefficient or low in accuracy, and is difficult to meet the requirement of accurate screening of soil. Therefore, a new soil screening technology needs to be developed to improve screening efficiency and accuracy, obtain soil samples with different particle sizes and provide support for soil research.

For example, the patent of publication No. CN 208032980U specifically discloses a soil screening machine, including screening case, screening case top is equipped with the feeder hopper, be equipped with vertical passage in the screening case, along vertical the coiling have double-deck helical structure's screening dish on the passage, the screening dish includes the screening net of upper strata and the flitch that connects of lower floor, the outward spiral sideline of screening net passes through the connecting plate fixedly with the spiral sideline that connects the flitch outwards, the inward spiral sideline of screening net, connect the flitch respectively with the outer wall fixed connection of passage, enclose into the guide chamber between screening net, connect flitch and the connecting plate, the guide chamber communicates with each other with the passage, be equipped with the vibrator on the passage, the passage bottom is equipped with the fine material export, screening case bottom is equipped with the coarse fodder export. The screening disc is used for screening soil, and the screening disc with the spiral structure can effectively increase screening time and effectively save installation space. But the essence of screening of this application also is that the screen cloth is adopted to screen, and there is the condition of the mesh putty of screen cloth when screening, leads to the device to screen the precision and the efficiency of screening lower.

Disclosure of Invention

In order to solve the above problems, the present application proposes a soil screening device. The technical problem that screening accuracy of the screening device is reduced and screening efficiency is reduced due to screen blockage can be effectively avoided.

To achieve the above object, in one embodiment of the present application, there is provided a soil screening apparatus comprising:

the slide way is spirally and vertically arranged, a feed inlet is formed in the upper end of the slide way, and a discharge outlet is formed in the lower end of the slide way; and

The discharging pipes are arranged in the middle of the side face of the slideway, and at least two discharging pipes are arranged at intervals along the vertical direction.

In one embodiment, the slideway is formed in the inner wall of a vertically arranged helical duct.

In one embodiment, the method further comprises: the screen cloth, screen cloth demountable installation is in on the feed inlet with the discharging pipe with the junction of slide.

In one embodiment, the method further comprises: the collecting hopper is arranged at the free end of the discharging pipe.

In one embodiment, the method further comprises: the feed back device is arranged on the side of the slideway, the feed end of the feed back device is communicated with the discharge port, and the discharge end of the feed back device is communicated with the feed port.

The beneficial effects of this application:

according to the soil sieving machine, soil to be sieved slides downwards from the spiral slideway, and the sliding height of soil particles in the slideway gradually rises along with the rising of the speed of the soil particles until the soil particles are sieved out from the discharging pipe. Because the materials fall down in-process, the initial momentum is different when the soil particles with different particle sizes slide down due to different masses, so that the heights and the times of the soil particles with different sizes are different, the soil particles with different sizes are effectively separated, and the screening efficiency is high and the accuracy is good.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following description of the drawings used in the description of the embodiments will be given in brief, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a screening apparatus according to an embodiment of the present application;

FIG. 2 is a screen mounting schematic of the present application;

in the figure, 1, a slideway; 11. a feed inlet; 12. a discharge port; 2. a discharge pipe; 3. a screen; 4. a collecting hopper; 5. and a material returning device.

Detailed Description

In order to make the objects, technical solutions and advantageous effects of the present application more apparent, the following detailed description of the preferred embodiments of the present application will be given with reference to the accompanying drawings, so as to facilitate understanding of the skilled person.

Referring to fig. 1-2, in one embodiment of the present application, a soil screening device includes a chute 1, the chute 1 is arranged vertically in a spiral shape, a feed inlet 11 is configured at an upper end of the chute 1, and a discharge outlet 12 is configured at a lower end of the chute 1; and at least two discharging pipes 2 are arranged at the middle part of the side surface of the slideway 1 at intervals along the vertical direction, when in use, the soil to be screened is poured into the slideway from the feeding hole 11, the soil particles slide downwards in a sliding gradually accelerating manner, and the soil particle speed gradually rises, so that the relative position of the soil particles on the slideway 1 gradually rises until the soil particles are screened out from the discharging pipe 2. This application utilizes the soil of not equidimension granule at the in-process of falling along slide 1, the principle that acceleration is different, from big to little in proper order with soil granule from discharging pipe 2 screen out, screening efficiency is high, the accuracy is good.

The number of the discharge pipes 2 can be set according to the types of soil particles which need to be screened out, and the more the discharge pipes 2 are arranged, the finer the soil particles which can be screened out.

In one embodiment, the chute 1 is formed on the inner wall of a vertically arranged spiral pipeline, and dust pollution generated in the screening process can be effectively reduced by utilizing the spiral pipeline chute 1, so that the environment around the screening equipment is improved, and the harm of dust to staff is reduced.

In an embodiment, this application still includes screen cloth 3, screen cloth 3 demountable installation on feed inlet 11 and discharging pipe 2 and slide 1's junction, detachable construction can adopt structural style such as spout, but screen cloth 3's mesh size is slightly greater than the soil particle size that corresponds discharging pipe 2 screening out, carries out further screening to the soil particle that sieves out through screen cloth 3, when avoiding too much material in slide 1, the soil particle of great granule missed corresponding discharging pipe 2, has guaranteed the accuracy of soil screening.

In one embodiment, the device further comprises a collecting hopper 4, wherein the collecting hopper 4 is arranged at the free end of the discharging pipe 2 and is used for collecting corresponding soil particles flowing out of the corresponding discharging pipe 2, so that workers can conveniently carry out subsequent treatment on the screened materials.

In one embodiment, the device further comprises a return device 5, the return device 5 can adopt commercial bucket lifting machine and other equipment, the return device 5 is arranged on the side of the slideway 1, the feed end of the return device 5 is communicated with the discharge port 12, the discharge end of the return device 5 is communicated with the feed port 11, and soil particles which cannot be normally screened out are guided back to the feed port 11 again through the return device 5 for secondary screening, so that all the soil can be effectively ensured to be screened.

Finally, it is noted that the above-mentioned preferred embodiments are merely for illustrating the technical solution of the present application and not for limiting it, and that although the present application has been described in detail by means of the above-mentioned preferred embodiments, it should be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the present application as defined by the appended claims; the size of the drawing is irrelevant to the specific real object, and the real object size can be changed arbitrarily.

Claims

1. A soil screening apparatus, comprising:

the slide way is spirally and vertically arranged, a feed inlet is formed in the upper end of the slide way, and a discharge outlet is formed in the lower end of the slide way; and the discharging pipes are arranged in the middle of the side face of the slideway, and at least two discharging pipes are arranged at intervals along the vertical direction.

2. A screening device according to claim 1, wherein:

the slideway is formed on the inner wall of a spiral pipeline which is vertically arranged.

3. The screening apparatus of claim 2, further comprising:

the screen cloth, screen cloth demountable installation is in on the feed inlet with the discharging pipe with the junction of slide.

4. A screening apparatus according to any one of claims 1-3, further comprising:

the collecting hopper is arranged at the free end of the discharging pipe.

5. The screening apparatus of claim 4, further comprising:

the feed back device is arranged on the side of the slideway, the feed end of the feed back device is communicated with the discharge port, and the discharge end of the feed back device is communicated with the feed port.