RU2804007C1 - Unit for crushing and separating snow and ice mass - Google Patents

Abstract

FIELD: cleaning of roads and streets.

SUBSTANCE: invention is related in particular to equipment for preparing snow and ice mass removed from roads for further processing it into water with separation of solid impurities. The device for crushing and separating the snow and ice mass contains a hopper installed above the melting chamber with horizontal drive shafts, on which disks and hammers are evenly mounted, placed between the disks. The disks are made in form of ellipses with a minor axis a, located perpendicular to the shaft axis, and a major axis b, inclined to the shaft axis at an angle of 70-75°, while the ratio of disk sizes is b=a/cos(90°-α).

EFFECT: invention provides increased efficiency of processing due to additional compaction and crushing of the processed snow-ice mass, as well as increased reliability of the device.

3 cl, 5 dwg

Description

The proposed technical solution relates to the cleaning of roads and streets, and specifically to equipment for preparing snow and ice mass removed from roads for its further processing into water with the separation of solid impurities.

There is a known installation for grinding snow mass, containing a receiving hopper installed above the melting chamber with horizontal drive shafts, on which disks and hammers are evenly installed, placed between the disks (utility model patent No. 67595, application 06.18.2007, publ. 10.27. 2007).

Its disadvantages include limited productivity due to the large volume of uncompacted snow.

Of the known, the closest to the proposed one in terms of technical essence and achieved results is an installation for grinding and separating snow and ice masses, containing a hopper installed above the melting chamber with horizontal drive shafts, on which disks and hammers are evenly installed, placed between the disks, while the shafts are located perpendicular to the direction of loading the hopper (Patent No. 2224850, Russian Federation, 2004). The known installation is also characterized by relatively low productivity. In addition, the common drive for synchronous rotation of the shafts makes it difficult to eliminate jamming of individual shafts when foreign objects get into the gap between the shafts.

The expected technical result is to increase the efficiency of processing due to additional compaction and crushing of the processed snow and ice mass, as well as to increase the reliability of the device.

The technical result is achieved by the fact that in a known installation for grinding and separating snow and ice mass, containing a hopper installed above the melting chamber with horizontal drive shafts, on which disks and hammers are evenly installed, placed between the disks, according to the present invention, the disks are mounted on the shafts obliquely to the shaft axis.

The angle a of the disks to the shaft axis is 70-75°, and the shape of the disk is an ellipse with axes a and b, with b=a/cos (90-α).

The inclined arrangement of the discs promotes additional compaction of snow in the direction along the shafts, and the edge of the disc provides additional cutting force and increases the efficiency of crushing pieces of ice, helping to increase the productivity of the installation. Separate individual drive of the shafts facilitates the removal of jamming and does not require a complete stop of the device.

The orientation of the slope on adjacent shafts can be opposite, which contributes to the intensification of crushing of the snow and ice mass, or the same, which facilitates the movement and removal of debris.

The essence of the proposed technical solution is illustrated by an example of its specific implementation with reference to the attached drawings, where

- in fig. 1, 2 - a general view of the installation is presented,

- in fig. 3 - section B-B is shown,

- in fig. 4 - section B-B,

- in fig. 5 - an embodiment of the device with the same inclination of the disks on all shafts.

The installation for grinding snow and ice mass contains a receiving hopper 2 installed above the melting chamber 1 with horizontally located drive shafts 3, on which disks 4 and hammers 5 are rigidly fixed, located between the disks 4. Shafts 3 with bearing supports 6 and individual reversible drives 7 are made removable, which ensures reliable operation and maintainability of the installation.

When the shafts rotate, the snow-ice mass is crushed by hammers 5 and disks 4 and compacted in the direction along the shafts, which facilitates the passage of the mass between the shafts into the melting chamber and helps to increase the productivity of the installation.

Claims (3)

1. A device for grinding and separating snow and ice mass, containing a hopper installed above the melting chamber with horizontal drive shafts on which disks and hammers are evenly installed, placed between the disks, characterized in that the disks are made in the form of ellipses with a small axis a located perpendicular to the shaft axis, and the major axis b, inclined to the shaft axis at an angle of 70-75°, while the ratio of the disk dimensions is b=a/cos(90°-α). 2. A device for grinding and separating snow and ice mass according to claim 1, characterized in that between each two disks there are three hammers evenly spaced around the circumference. 3. Device according to claims. 1, 2, characterized in that all the disks on the shafts are inclined in one direction.

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