Emptying device for silos with telescopic fall pipe arranged in

Details Emptying device for silos with telescopic fall pipe arranged in Emptying device for silos with telescopic fall pipe arranged in

1987-02-17

1988-09-27

Spar, Robert J.

Material or article handling

Static receptacle and means for charging or discharging, or...

Nongravity discharging means

414302, A01F 2520, B65G 6542

Patent

active

047738081

ABSTRACT:
In the device according to the invention for emptying bulk material from silos (1), a telescopic fall pipe (24) is used as a delivery shaft for the bulk material to be emptied, which telescopic fall pipe (24) has at least one sliding pipe (27) which is arranged between an upper coupling pipe (25), arranged with the clearing device (4) which can be lifted, and a lower stand pipe (30) or bellows. In order to prevent the sliding pipe (27) from falling down or suddenly slipping through, a fall-prevention feature in the form of a retaining or automatic-retraction device or the like is allocated to the sliding pipe (27), which retaining or automatic-retraction device preferably consists of hydraulic lifting cylinders (36) which control the lifting movements of the sliding pipe. The telescopic fall pipe (24) expediently has only a few pipe sections, preferably only a single sliding pipe (27).

REFERENCES:
patent: 34379 (1862-02-01), Strong
patent: 679875 (1901-08-01), Blaisdell
patent: 772911 (1904-10-01), Acklin
patent: 1331020 (1920-02-01), MacLennan
patent: 1479990 (1924-01-01), Keys
patent: 2500043 (1950-03-01), Radtke
patent: 2649215 (1953-08-01), Dickson
patent: 3513995 (1970-05-01), Stroker
patent: 3526328 (1970-09-01), Garrett et al.
patent: 4225033 (1980-09-01), Fukagi et al.
patent: 4284369 (1981-08-01), Gsponer et al.
patent: 4350467 (1982-09-01), Soros

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