Gravity soil screening device for soil restoration

Abstract

The invention discloses a gravity soil screening device for soil restoration, which comprises a main body part, a driving part, a screen cylinder and an anti-clogging part. The feeding funnel and the guide ramp, the feeding pipe is arranged through the side wall of the housing, and the feeding pipe is fixedly connected with the side wall of the housing, and the stepped ring seat is slidingly sleeved on the feeding material inside the housing. tube outside. The invention can realize continuous feeding, thereby improving the screening efficiency. At the same time, due to the continuous feeding, the soil inside the sieve cylinder can be screened bit by bit, which further improves the screening efficiency. It can move left and right, so that the soil is evenly distributed inside the drying cylinder, which improves the screening efficiency, and the principle of homopolar repulsion when the sieve cylinder rotates makes the rubber pad of the vibrating part hit the screen repeatedly to prevent the screen from being blocked , Good anti-clogging effect.

Description

technical field [0001] The invention relates to the technical field of soil remediation equipment, in particular to a gravity-type soil screening device for soil remediation. Background technique [0002] When the soil contains too many harmful substances and exceeds the self-purification capacity of the soil, it will cause changes in the composition, structure and function of the soil, inhibit the activity of microorganisms, and gradually accumulate harmful substances or their decomposition products in the soil through the "soil → plant → Human body”, or indirectly absorbed by the human body through “soil → water → human body” to the extent that it endangers human health, which is soil pollution. [0003] According to the "National Soil Pollution Survey Bulletin" released in 2014, the overall situation of soil environment in China is not optimistic. The national soil pollution exceeding rate reaches 16.1%. While the soil environment problems of industrial and mining wastela...

AI Technical Summary

Problems solved by technology

It has the following disadvantages when it is used; 1. When sieving, pour a certain amount of soil into the inside of the sieve cylinder for sieving. After the sieving is completed, it is necessary to stop the machine and pour a certain amount of soil into the inside of the sieve cylinder again. Start the machine for screening, the efficiency is low, and because a large amount of soil is poured into the sieve cylinder at one time, the screening effect is poor; 2. When the soil is poured into the inside of the sieve cylinder, the soil inside the sieve cylinder is unevenly distributed, resulting in 3. When sieving, the air pressure from top to bottom is formed in the sieve cavity, pushing the sand and gravel to fall, and the anti-blocking effect is poor

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