RU2012142940A

RU2012142940A - METHOD FOR CLEANING SOIL FROM OIL PRODUCTS AND DEVICE FOR ITS IMPLEMENTATION

Info

Publication number: RU2012142940A
Application number: RU2012142940/13A
Authority: RU
Inventors: Владимир Васильевич Старших; Евгений Александрович Максимов
Priority date: 2012-10-08
Filing date: 2012-10-08
Publication date: 2014-04-20
Also published as: RU2517222C1

Abstract

1. Способ очистки почвы от нефтепродуктов, включающий предварительную подготовку почвы с измельчением крупных включений, перемешивание, отличающийся тем, что на первом этапе почву измельчают с помощью дробилки до мелких частиц, на втором этапе производят очистку почвы, для этого ее перемешивают с сорбентами, которые адсорбируют капли нефтепродуктов, на третьем этапе полученный материал высушивают, образовавшиеся в процессе сушки отработанные газы очищают и удаляют в атмосферу, а очищенную почву выгружают.2. Способ по 1, отличающийся тем, что почву измельчают до частиц размером 40-50 мм.3. Способ по п.1, отличающийся тем, что сушку ведут конвективным или термодинамическим, или высокочастотным, или ультразвуковым способами, или их комбинацией.4. Устройство для осуществления способа, содержащее приемный бункер, перемешивающее устройство, устройство для отгрузки очищенной почвы, винтовой конвейер, вибратор, отличающееся тем, что оно снабжено установленной под приемным бункером дробилкой, соединенной винтовым конвейером с перемешивающим устройством, выполненным в виде горизонтально расположенной в корпусе шнековой мешалки, в верхней части которой установлен дозатор для гранулированного сорбента, выход перемешивающего устройства соединен винтовым конвейером с бункером сушилки, представляющей собой корпус с расположенными в нем друг над другом ленточными конвейерами, по которым материал перемещается вдоль сушилки и пересыпается в ниже расположенный ленточный конвейер, верхние ветви конвейеров контактируют с установленными под ними вибраторами, выполненным в виде роликовых эксцентриков, имеющих индивидуаль1. A method of cleaning the soil from oil products, including preliminary soil preparation with grinding of large inclusions, mixing, characterized in that at the first stage the soil is crushed with a crusher to fine particles, at the second stage the soil is cleaned, for this it is mixed with sorbents, which drops of oil products are adsorbed, at the third stage, the resulting material is dried, the exhaust gases formed during the drying process are cleaned and removed into the atmosphere, and the cleaned soil is discharged. 2. The method according to claim 1, characterized in that the soil is crushed to particles with a size of 40-50 mm. The method according to claim 1, characterized in that the drying is carried out by convective or thermodynamic, or high-frequency, or ultrasonic methods, or a combination thereof. A device for implementing the method, comprising a receiving hopper, a mixing device, a device for shipping cleaned soil, a screw conveyor, a vibrator, characterized in that it is equipped with a crusher installed under the receiving hopper, connected by a screw conveyor with a mixing device, made in the form of a screw screw horizontally located in the housing mixer, in the upper part of which a dispenser for granular sorbent is installed, the output of the mixing device is connected by a screw conveyor to the dryer hopper and, which is a case with belt conveyors located in it one above the other, along which the material moves along the dryer and is poured into a lower belt conveyor, the upper branches of the conveyors are in contact with the vibrators installed under them, made in the form of roller eccentrics having individual

Claims

1. A method of cleaning the soil from oil products, including preliminary soil preparation with grinding of large inclusions, mixing, characterized in that at the first stage the soil is crushed with a crusher to fine particles, at the second stage the soil is cleaned, for this it is mixed with sorbents, which drops of oil products are adsorbed, at the third stage, the resulting material is dried, the exhaust gases formed during the drying process are cleaned and removed into the atmosphere, and the cleaned soil is discharged.

2. The method according to 1, characterized in that the soil is crushed to particles with a size of 40-50 mm

3. The method according to claim 1, characterized in that the drying is carried out by convective or thermodynamic, or high-frequency, or ultrasonic methods, or a combination thereof.

4. A device for implementing the method, comprising a receiving hopper, a mixing device, a device for shipping cleaned soil, a screw conveyor, a vibrator, characterized in that it is equipped with a crusher mounted under the receiving hopper, connected by a screw conveyor with a mixing device, made in the form of horizontally arranged a screw mixer housing, in the upper part of which a dispenser for granular sorbent is installed, the output of the mixing device is connected by a screw conveyor to a land hopper ki, which is a case with belt conveyors located in it one above the other, along which the material moves along the dryer and is poured into a lower belt conveyor, the upper branches of the conveyors are in contact with the vibrators installed under them, made in the form of roller eccentrics having an individual or group drive , in the dryer housing, under the conveyors, burners are installed for burning the sorbent of an adsorbing oil products, in the upper part of the dryer there is a chamber for collecting waste ABC, connected through a cyclone and an absorber to a smoke exhaust, and a device for shipment of cleaned soil is placed at the outlet of the last conveyor and represents a drain channel connected to an opening made in the lower part of the side wall of the dryer casing, which is closed by a gate.