SE501330C2 - Method and apparatus for spreading road salt - Google Patents

Abstract

In accordance with a method for spreading road salt, the salt is moistened prior to spreading with water according to a predetermined mixing ratio. The salt moistened with water is dispersed before spreading takes place. An arrangement for spreading road salt in accordance with this method comprises a salt reservoir (1), a water reservoir (2) and devices (3; 4) for transferring salt and water from the aforementioned reservoirs (1; 2) to a mixing station (5). In this the salt is moistened with water in an adjustable mixing ratio. There are also devices (6) so arranged as to transport the moistened salt to a spreader (7). Means (8) for finely distributing the moistened salt are provided in front of the spreader (7).

Description

lO 15 20 25 30 35 501 330 2 vertical axis between a neutral position and a working position swivel, powered by a transport vehicle's hydraulic system hydraulic motor driven grinder, which is in working position inside the working area of the funnel and in the free position outside this.

According to another special feature. for the invention the mill comprises a bowl-shaped body with a central raised part so that the bottom of the frame forms an annular circular planar malbana, that across this runs through it raised part and rotatably mounted in this one shaft with which is operatively connected to at least one grinding body in the form of a truncated cone arranged to run around the template, thereby a particularly robust and efficient working design is achieved those of the mill.

The invention will be further explained in the following reference to the accompanying drawing, in which 'one is shown construction of a device for spreading road salt according to the method according to the invention.

In the drawing, 1 schematically denotes a salt container and 2 a water container. 3 and 4 denote bodies for transport salt and water to a mixing station 5.

In this, the salt is moistened with water in an adjustable mixture. conditions. Additional transport agencies have been set up transporting the moistened salt to a spreader 7.

The mixing station 5 and said transport means 3, 4 and 6 may, for example, consist of a drop shaft with one in it arranged sprinkler system, which via a pipeline stands in connection with water tank 2. The amount of water added controlled, for example, by means of a crane of a conventional type.

The spreader 7 is a so-called disc spreader which comprises one at the narrow end of funnel 7a arranged by a hydraulic motor 7b driven spreading disc 7c.

According to the invention, there are means 8 for the spreader 7 10 15 20 25 30 501 330 3 atomization of the moistened salt.

Said means 8 is constituted in the embodiment shown in the drawing of a mill 8a arranged to be driven by a hydraulic engine 8b. The grinder 8a and the motor 8b are rotatably mounted on a vertical axis 9 from a free position marked with solid lines to a working position marked with dashed lines, in which the mill 8a is located inside the funnel 7a area of activity. In the free position, the mill 8a is located outside this area.

In the embodiment shown, the mill comprises a shell-shaped body 10 with a central raised part 10a and a partial one open cover lOb. The bottom l0c of the frame forms circularly annular planar malbana. Through the raised part 10a and stored in this, runs an axis not visible in the drawing, which connects the motor 8b to a conical part 11, which carries tvenne grinding bodies lla, llb in the form of a truncated cone and which are set up to run around the template l0c. In working the moistened salt falls down on the template l0c and decomposes divided by the grinding bodies lla, llb, after which it disintegrates, moistened salt, which now has gruel consistency, gets fall on the spreading disc 7c and spread on the road banana.

It is obvious that the device according to the invention can modified in many ways within the scope of the inventive concept.

This also applies to the selection of a suitable disintegrant for the moistened salt as the choice of transport means for transport of the salt before and after it has been moistened.

Claims (1)

10 15 20 25 30 35 501 330 Method of spreading road salt, wherein the salt before the spreading is moistened with water according to a predetermined mixing ratio, characterized in that the salt moistened with water is decomposed before the spreading takes place. Device for spreading road salt comprising a salt container (1), a water container (2), means (3; 4) for transferring salt and water from said container (1; 2) to a mixing station (5) in which the salt is moistened with water in adjustable mixing ratio and means (6) arranged to transport the moistened salt to a spreader (7), characterized in that before the spreader (7) there are means (8) for decomposing the moistened salt so that this gets a gruel-like consistency. Device according to claim 2, wherein said transport means comprises a funnel (7a) arranged above the spreader (7), characterized in that the device comprises a hydraulic system pivotable on a vertical axis (9) between a free position and a working position, of a transport vehicle power-fed hydraulic motor (8b) driven grinder (8), which in the working position is located within the operating area of the funnel (7a) and in the neutral position outside it. Device according to claim 3, characterized in that the mill (8) comprises a bowl-shaped body (10) with a centrally raised part (10a) so that the bottom of the body (10) forms an annular circular planar web (10b), that across it runs through the raised part (10a) and rotatably mounted therein a shaft to which is operatively connected at least one grinding body (11a; 11b) in the form of a truncated cone arranged to run around the grinding path (10c).