JPH0122169B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a circular conveyor for large storage tanks, that is, a circular conveyor.

[Conventional technology and its issues]

In general, a circular conveyor with a circular planar shape used for large storage tanks such as silos is an annular conveyor with a bucket-like cross section. One end of the short bottom plate is pivoted to the bottom of the side plate, and the other end It consists of wheels that run on rails on the lower surface, which are connected without any gaps, and when the powder and granules to be accommodated are to be delivered and supplied to the delivery conveyor, a part of the rails is removed. It is curved downward, and when passing through this part, the bottom plate is opened downward using the shaft support as a fulcrum, and the powder is released. Therefore, this type of circular conveyor has problems such as a complicated structure, high cost, and poor maintainability.

[Means to solve the problem]

The structure of the present invention, which solves the problems of the prior art, is that a dispensing device such as a rotary plow that moves along the dispensing port formed in the silo body and the cone hem is provided with a dispensing device such as a rotary plow that moves along the dispensing port. The powder and granules discharged by the device are supplied to a circular conveyor having a circular planar shape, and the powder and granules in this circular conveyor are further discharged at a fixed point and supplied to the discharge conveyor. In a circular conveyor for a large storage tank, the circular conveyor is connected to a ring-shaped inner side plate 5a.
and a ring-shaped outer side plate 5b having a bottom plate 5c and a bottom plate 5c.
The cross-sectional shape surrounded by is mortar-shaped, and
It is formed between a hopper type conveyor body 5 that allows accumulation of powder and granular material, the entire lower circumference of the inner side plate 5a that constitutes the hopper type conveyor body 5, and the bottom plate 5c of the outer side plate 5b, and a discharge port 6 through which the powder and granular material flows out at an angle of repose with respect to the bottom plate 5c, and a portion of the discharge port 6 corresponding to the upper part of the conveyance start end of the discharge conveyor; A dispensing device 7 having a dispensing capacity equal to or greater than the dispensing device provided at the dispensing port, and a dispensing powder guide member 8 provided between the dispensing conveyor and the dispensing device 7 It is characterized by the following structure.

〔Example〕

To explain the details of the embodiment of the present invention with reference to the drawings, 1 is a silo main body, 2 is a cone, 3 is a discharging port for powder and granular material in the silo main body 1, 4 is a rotary plow, and A is a planar shape that runs on a rail. It is a circular conveyor. The configuration of the circular conveyor A will be explained with reference to FIGS. 2 and 3. The circular conveyor A has inner and outer side plates 5a and 5b having a ring shape in plan view, and a bottom plate 5c that is integrated with the outer side plate 5b. The hopper-type conveyor body 5 has a circular structure with a mortar-shaped cross-sectional shape and a circular planar shape that allows accumulation of powder and granules, and the hopper-type conveyor body 5 includes: A discharge port 6 is formed around the entire lower part of the inner side plate 5a, through which the powder and granules flow out onto the bottom plate 5c at an angle of repose, and a discharge port 6 is formed at a predetermined location of the discharge port 6, that is, on the conveyance start end of the discharge conveyor 9. A rotary plow (or fixed plow) 7 is provided at a corresponding payout port 6. In the figure, reference numeral 8 denotes a guide member for guiding the powder and granules discharged by the rotary plow 7 onto the discharge end of the discharge conveyor 9.

The discharging capacity of the rotary plow 7 provided on the hopper type conveyor body 5 constituting the circular conveyor A is equal to or greater than the powder discharging capacity of the rotary plow 4 of the silo body 1. It is desirable that the powder accumulated in the hopper type conveyor main body 5 be reliably discharged. Furthermore, in order to improve the dispensing capacity, it is also possible to arrange a plurality of rotary plows so that their total dispensing capacity exceeds the capacity of the rotary plow 4 of the silo main body 1. Further, if the plow is not a rotary type but a scraper type, there is no need to consider this point.

In the figure, reference numeral 10 denotes a holder that independently supports the inner side plate 5a constituting the hopper type conveyor body 5 and drives and runs at the same speed as the hopper type conveyor body 5, and 11 denotes a rail on which the holder 10 runs. Further, the inner side plate 5a may be connected to the outer side plate 5b by a connecting plate (not shown). However, in this case, it is desirable to prevent powder from being piled up on the connecting plate.

〔Effect of the invention〕

Since the present invention is configured as described above, the following configuration is obtained.

(a) With the same configuration and action as the circumferential dispensing action of the dispensing port of the large storage tank of a circular type silo, the powder and granules in the circular conveyor can be discharged again at a fixed point. Therefore, compared to conventional circular conveyors, the complicated structure of curving the rail downwards and opening the bottom plate along the curved rail surface for supplying the output to the output conveyor is omitted, and the structure of the conveyor is improved. Simplification, cost reduction, and improved maintainability can be achieved.

(b) Since a considerable amount of powder and granular material can be accommodated in the hopper type conveyor main body 5, a higher volumetric efficiency can be obtained compared to the conventional technology, and the structure is simple.

(c) Since the dispensing device 7 provided at the dispensing port of the hopper type conveyor main body 5 has a dispensing capacity equal to or greater than that of the dispensing device provided at the discharging port formed at the hem of the cone, the hopper type conveyor The conveyor body 5 is fully filled with powder and granules, and no overflow occurs.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view of the silo body, FIG. 2 is an enlarged longitudinal sectional front view of the main part, and FIG. 3 is a partially cutaway plan view of the circular conveyor. DESCRIPTION OF SYMBOLS 1... Silo body, 2... Cone, 3... Payout port, 4... Rotary plow, 5... Circular type hopper type conveyor body, 5a... Inner side plate, 5b... Outer side plate, 5c... Bottom plate, 6...Payout port, 7...Plow, A...Circular conveyor.

Claims (1)

[Claims] 1. A dispensing device such as a rotary plow that moves along the dispensing port is provided at the dispensing port for powder and granular material formed in the silo main body and the cone hem, and the powder is discharged by the dispensing device. Circular type conveyance in a large storage tank in which powder and granules are fed to a circular conveyor with a circular planar shape, and the powder and granules in this circular conveyor are discharged at a fixed point and supplied to a discharge conveyor. In the apparatus, the circular conveyor has a mortar-shaped cross-section surrounded by a ring-shaped inner side plate 5a and a ring-shaped outer side plate 5b having a bottom plate 5c, and has a shape in which powder and granules are accumulated. A hopper-type conveyor body 5 that enables
A dispensing port 6 through which the powder and granular material flows out at an angle of repose relative to the top, and a dispensing port 6 provided at a portion of the dispensing port 6 corresponding to the upper part of the conveyance start end of the dispensing conveyor, and provided at a dispensing port at the bottom of the cone. A dispensing device 7 that has a dispensing capacity equal to or greater than that of the dispensing device
A circular conveyance device for a large storage tank, characterized in that it is constituted by: and a guide member 8 for guiding the discharged powder and granular material provided between the discharging conveyor and the discharging device 7.