Screening device for petroleum-contaminated soil treatment

Abstract

A screening device for petroleum contaminated soil treatment belongs to the technical field of contaminated soil treatment and comprises a limiting frame, a screening mechanism is mounted in the limiting frame and comprises a base, a mesh screen, a plurality of mounting plates and a plurality of first connecting rods, and the mounting plates and the first connecting rods form a rotating frame. The rotating frame is connected to the outer surface of the mesh screen in a sleeving mode, a plurality of screen holes are evenly distributed in the mesh screen, a rotating ring is rotationally connected to the base, the rotating frame is rotationally connected with the base through the rotating ring, and through arrangement of the screening mechanism, an impact block is arranged on the screening mechanism, and a first driving motor is used for controlling a first rotating rod to rotate; the first rotating rod is driven to rotate to drive an impact block fixedly connected to the first rotating rod in a sleeving mode to shake, in the shaking process of the impact block, the inner side wall of the mesh screen can be knocked, an acting force opposite to the screening direction is provided for the mesh screen, and therefore the permeability of the mesh screen in the screening process can be improved, and certain progressive significance is achieved.

Description

technical field [0001] The invention relates to the technical field of soil pollution, in particular to a screening device for oil-contaminated soil treatment. Background technique [0002] Using a screen with holes to divide mixed materials with different particle sizes into various particle size levels is called screening. During the oil development and production process, a lot of ground oil will be produced, which not only pollutes the soil, but also causes a lot of waste of oil. Therefore, it is necessary to carry out a series of separation treatments on the mixture of crude oil and sediment, among which oil-contaminated soil screening treatment devices are required. [0003] In the prior art, the patent whose publication number is CN213255672U discloses a soil sieve for soil detection, including a base, and the four corners of the top of the base are provided with a support mechanism, and the top of the support mechanism is provided with an inclined The left side of t...

AI Technical Summary

Problems solved by technology

The utility model drives the disc to rotate by turning on the motor, and then drives the screening plate to move left and right. When the screening plate moves left and right, the soil can be bumped up and down, and then the soil can be fully screened, so that the purpose of good screening effect can be achieved. , and the patent with the publication number CN112098626A discloses a quick soil screening equipment for soil detection, including a screening box, the inner wall of the screening box is provided with a lifting groove, and a guide is installed in the lifting groove Slide bar, three vibrating plates are set on the guide sliding bar, an extension plate is set on the vibrating plate, a screen is installed on the extension plate, a motor is installed on the screening box, and the motor The rotating shaft runs through the screening box, and an eccentric wheel is installed on the end of the motor rotating shaft, and the eccentric wheel is closely attached to the vibration plate. A large part of the sieving plates of existing soil sieves has the problem that the upper soil cannot be fully sieved, and the sieving effect is not good, which affects the results of soil testing. However, the soil viscosity after oil pollution increases, Therefore, it is easy to cause blockage of the screening device during the screening process. At the same time, during the screening process, it is difficult to screen the sticky soil together, which is not conducive to the screening of oil-contaminated soil. Therefore, a A screening device for oil-contaminated soil treatment

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