Scraper for the development of fluvial gravel deposits

 

(57) Abstract:

The invention relates to a device for transporting bulk and bulk cargoes have been presented, namely to cable scrapers, and can be used for the development of fluvial gravel deposits of diamonds, for example, in Angola. Scraper for the development of fluvial gravel deposits includes side and rear walls, cross ties, trailers with the head and tail traction ropes, consists of two pivotally interconnected and placed along the length of the scraper sections with the location of the horizontally oriented hinge placed over the upper edge of the scraper. Adjacent the side walls of the sections are made to overlap each other and profiled on the arc of a circle with its center coinciding with the axis of the hinge. Central angle of turn of the sections relative to each other correspond to the maximum curvature of the transverse profile of the bed of the river. Increases the efficiency of the scraper installation by reducing losses diamonds and performance. 1 C. p. F.-ly, 3 ill.

The invention relates to a device for transporting bulk and bulk cargoes have been presented, namely to cable scrapers, and the>/P>The famous cable car-scraper unit (prototype), including scraper box type, consisting of side and rear walls, cross-linking, towed devices, head and tail ropes (Pukhov Y. C. mining operations. M.: Nedra, 1991, S. 110-111, Fig.73, d).

However, the disadvantages of the known scraper is the inefficiency of its use for the development of fluvial gravel deposits of diamonds due to the possibility of loss of diamonds during the passage of the scraper bed of the river the greater curvature, and the limited capacity of the scraper installation.

Objectives of the invention are to increase the efficiency of the scraper installation by reducing losses diamonds and productivity.

The tasks are solved due to the fact that the scraper for the development of fluvial gravel deposits, including side and rear walls, cross ties, trailers with the head and tail traction ropes, consists of two pivotally interconnected and placed along the length of the scraper sections with the location of the horizontally oriented hinge placed over the upper edge of the scraper adjacent the side walls of the sections is made the Central angle of turn of the sections relative to each other corresponds to the maximum curvature of the transverse profile of the bed of the river.

Scraper for the development of fluvial gravel deposits is shown in Fig. 1 is a side view, and Fig.2 is a plan; Fig.3 is a side view with the passage of the scraper bed of the river.

Scraper for the development of fluvial gravel deposits consists of two placed along the length of the scraper sections 1 and 2, consisting of side walls 3 and 4, connected by cross ties 5 and 6. The sections 1 and 2 are interconnected through a horizontally oriented hinge 7, is placed over the upper edge of the scraper. The second section 2 is provided with a back wall 8.

Adjacent the side walls 3 and 4 of sections 1 and 2 are made to overlap each other and profiled along the arc of a circle of radius R with its center coinciding with the axis of the hinge 7. With this Central angle of roll sections 1 and 2 relative to each other corresponds to the maximum curvature of the transverse profile of the bed 9 of the riverbed 10.

The second section 2 in the direction of movement of the scraper in the working direction 11 may be provided with a cutting element 12 mounted between the lower edges of the side walls 4 directly outside their curved sections.

The first section 1 is provided with a device 13 connected to the main rope 14 and the second CE is Phnom deposits proceeds as follows. Development of fluvial gravel deposits, such as diamonds, by pulling the scraper across the river channel 10 on her box 9 using three-drum scraper winch placed on one of the banks of the river (not shown). When moving scraper, consisting of two hinge (7) connected sections 1 and 2 in box 9 in the direction 11, is consistent with the filling of sections 1 and 2 of bottom sediments containing diamonds. However with the passage of the scraper section of the bed 9 with a curved transverse profile (Fig.3) due to the mutual reversal of sections 1 and 2 on the corner there is no loss of content scraper, since the lower edge of the side walls 3 and 4 "tracks" transverse profile of the river channel 10.

The presence of the cutting element 12 allows for the immediate lower layer of alluvial strata to increase the efficiency of filling scraper.

Profiling adjacent side walls 3 and 4 of sections 1 and 2 of the arcs of a circle, their mutual overlap reduces the resistance to movement of the scraper and eliminate loss of transported material.

1. Scraper for the development of fluvial gravel deposits, including side and rear walls, cross ties, trailers device is the R between a and placed along the length of the scraper sections with the location of the horizontally oriented hinge, placed over the top edge of the scraper adjacent the side walls of the sections are made to overlap each other and profiled on the arc of a circle with its center coinciding with the axis of the hinge, while the Central angle of turn of the sections relative to each other corresponds to the maximum curvature of the transverse profile of the bed of the river.

2. The scraper under item 1, characterized in that the second section in the direction of movement of the scraper in the direction provided with a cutting element mounted between the lower edges of the side walls directly outside their curved sections.

 

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