RU2661573C1 - Scoop-scraper screw conveyor - Google Patents

Abstract

FIELD: machine building; oil and gas industry.

SUBSTANCE: invention relates to structural elements of devices for processing and utilization of oil sludge and soil contaminated with oil or oil products. Scoop-scraper screw conveyor comprises a main tube fixed to a shaft, which is adapted to be connected to a shaft rotation device. There are at least two support rings on this pipe, fixing the position of the main pipe in the casing of the conveyor. On said support rings are fixed with a clearance relative to the casing of the conveyor of the blade, between these support rings is mounted on the main pipe, with the possibility of removing the scraper adhering to the inner surface of the casing. At the edges of the main pipe, the means of throwing the material being transported from the end surface of the conveyor shell are installed.

EFFECT: technical result achieved in the implementation of the developed device consists in the uniform distribution of the processed material to the walls of the desorber chamber and its removal from the walls, which allows, with minimum time and energy costs, to completely dry or heat these materials to the required temperature, depending on the raw materials being processed.

4 cl, 1 dwg

Description

The invention relates to structural elements of devices for the processing and disposal of oil sludge and contaminated with oil or oil products soil.

Known installations for transporting drill cuttings use various types of screw auger conveyors.

Known (RU, patent 120411, publ. 09/20/2012) a screw conveyor, which can be used in devices for the processing and disposal of oil sludge and soil contaminated with oil or oil products, containing a casing of circular cross section, inside of which there is a working body made in the form of a spiral screw , a feeder drive made with an adjustable speed and with the possibility of reverse rotation, a loading hopper, an unloading window, made in the lower part of the casing on the one hand, on the other hand, an unloading hatch with a lid, moreover, the working body of the feeder is made in the form of a flexible rodless spiral screw of the required length, which is attached on one side to the drive shaft of the feeder, the other side of the spiral screw remains free to rotate, while the casing of the feeder is closed by a cover.

It is known (JP patent 62218332, publ. 20.03.1986) a bunker device consisting of a container ending with an outlet funnel, a drive screw feeder for unloading the processed material from the bunker, made in the form of a screw conveyor with a variable external diameter, uniformly decreasing towards the end with a loop instead of the last turn.

Known (RU, patent 164027, publ. 08.20.2016) a screw conveyor comprising a screw, the first end of which is rigidly connected to a flange located coaxially with said screw, the screw of the screw having a variable outer diameter decreasing from said first end of the screw connected to a flange towards the second end, and a variable width decreasing from said first end of the screw connected to the flange towards the second end.

The disadvantage of these screw screw conveyors used in the heat treatment chambers of oil sludge and soil contaminated with oil or oil products is the uneven drying of the material and its sticking to the shaft and screw blades of the screw

The technical problem solved by the developed device is to expand the range of equipment for the processing and disposal of oil sludge and soil contaminated with oil or oil products.

The technical result achieved by the implementation of the developed device consists in uniform distribution of the processed material on the walls of the desorber chamber and its removal from the walls, which allows for minimal time and energy consumption to completely dry or warm the specified materials to the required temperature, depending on the processed raw materials.

To achieve the specified technical result, it is proposed to use the developed scapular-scraper screw conveyor. The scapula-scraper conveyor of the developed design contains a main pipe mounted on a shaft made with the possibility of connecting to a shaft rotation device, at least two support rings are installed on the specified pipe, fixing the position of the main pipe in the conveyor casing, on these supporting rings are fixed with a gap relative to the casing a conveyor (2-5 mm) of the blade, between these support rings installed, with the ability to remove adhering to the inner surface of the casing of the material, at least about yn scraper, while at the edges of the main conduit means mounted garbage transported material from the end face of the conveyor casing, with the supporting rings secured to the inner surface of the casing of the conveyor, and located between the scraper blades.

Preferably, the scraper (or at least part of the scraper adjacent to the casing) is made of material that does not damage the conveyor casing. This makes it possible to evenly distribute the processed material on the walls of the desorber chamber and to remove it from the walls.

Mostly the blades are installed at an angle from 2 to 30 ° relative to the axis of movement of the transported material, which makes it possible to move the processed material.

Preferably, the means of rejection from the end surface of the casing of the conveyor of the moved material is made in the form of blades mounted counter-relative to the main blades at an angle of 85 degrees, relative to the axis of movement of the processed material.

A schematically developed device is shown in the figure, with the following notation: the main pipe of the screw 1, support rings 2, shaft 3, blades 4, scrapers 5 and means of rejection of the transported material 6 along the edges of the pipe 1.

Support rings 2 are fixed on the main pipe 1 with a certain step. Then, depending on the productivity and speed of material movement, these rings are fixed at a certain angle of the blade 4 with a distance of 2-5 mm from the casing wall. Between the support rings 2 establish one or more scraper devices (scraper) 5 depending on the properties of the processed material. At the ends of the main pipe 1 there are fixed means 6 for discarding the transported material from the end surface.

The shaft rotation speed can be adjusted depending on the natural data of the processed material. The blades and scrapers are installed in such a way as to spread the material along the walls of the chamber, which dries better, while the scraper cleans the dried material, which slowly moves to the discharge hopper.

The developed scraper-scraper screw conveyor is applicable for bulk, viscous, liquid and thick material. Its design completely eliminates the possibility of buildup of the processed material on the walls of the casing.

Claims (4)

1. Shovel-scraper screw conveyor, characterized in that it contains a main pipe mounted on a shaft configured to connect to a shaft rotation device, at least two support rings are installed on said pipe, fixing the position of the main pipe in the conveyor casing, on said supporting rings are fixed with a gap relative to the casing of the blade conveyor, between these supporting rings is mounted on the main pipe, with the possibility of removing material adhering to the inner surface of the casing , A scraper, with the edges main conduit means mounted garbage transported material from the end face of the conveyor casing. 2. The conveyor under item 1, characterized in that the scraper is made of material that does not damage the casing of the conveyor. 3. The conveyor under item 1, characterized in that the blades are installed at an angle from 2 to 30 ° relative to the axis of movement of the transported material. 4. The conveyor according to claim 1, characterized in that the means of rejection from the end surface of the casing of the conveyor of the transported material is made in the form of blades mounted counter to the main blades.

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