JPH0595655U - Crushing device for compacted bulk powder - Google Patents

Abstract

(57) [Summary] [Purpose] Consolidate the compacted lumps generated in the hopper of powder and granules at the hopper exit to prevent chute clogging etc. at the conveyor transfer part etc. and contribute to stable operation. To do. [Structure] An impeller 2 having a large number of radial crushing blades 3 protruding therefrom is provided on a feeder belt 22 at the outlet of a gypsum hopper. The impeller 2 is rotatably supported with its axis orthogonal to the belt traveling direction. The tip of the blade 3 is held at a position close to the upper surface of the belt. The impeller 2 rotates following the powder particles 21 on the belt 22 and cuts and crushes the compacted lumps mixed in the powder particles 21. Impeller 2 to receive the reaction force of shredding
A cylindrical receiving roller 15 is provided on the lower surface of the belt immediately below.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a device for crushing compacted lumpy powder particles mixed in powder particles discharged from a hopper or the like at the hopper outlet.

[0002]

[Prior Art]

 In the granular material such as gypsum stored in the hopper, a part of the granular material adheres and deposits on, for example, a wall surface in the hopper and is compacted into a lump. When the granular material is pulled out from the hopper for transportation, such a lump may be separated and discharged. When such powdered material mixed with compacted lumps is transported by a belt conveyor or the like, there is a problem that clogging occurs in the chute at the connecting portion of the conveyor, which causes a trouble.

[0003]

[Problems to be solved by the device]

 The present invention is intended to provide a device for crushing such a compacted lump-shaped powdery substance at the hopper outlet, and to solve the problem of causing clogging at a connecting portion of a conveyor or the like. In this case, the device of the present invention uses the movement of the transported object to carry out the crushing without using any special power.

[0004]

[Means for Solving the Problems]

 The present invention provides an impeller having a large number of radial disintegrating blades, and the impeller is rotatably supported on a conveyor belt with its axis orthogonal to the belt traveling direction, and the tips of the blades are close to the conveyor belt upper surface. This is a device for crushing compacted lumps of granules, which is characterized in that it comprises a support portion that is held in a position and a rotatable cylindrical receiving roller that flatly supports the lower surface of the conveyor belt directly below the impeller.

[0005]

[Action]

 The apparatus of the present invention is provided with an impeller having a large number of knife-shaped, columnar or elliptic column-shaped crushing blades projecting radially from the circumference, on the feeder belt at the exit of the hopper. The device of the present invention can be installed not only on the feeder belt but generally on the conveyor belt. When the granular material is conveyed on the belt, the impeller rotates following the movement of the granular material. At this time, the compacted lumps mixed in the conveyed powder and granules are crushed by a blade and crushed into small pieces. This device can be used for crushing powder and granules that produce various compacted aggregates. This device does not require power.

Such an impeller can be attached to the inside of the hopper for use. However, when installed in the hopper, it may be necessary to provide external power for rotation. The shape of the crushing blade may be appropriately determined depending on the property and hardness of the compacted mass.

Since the apparatus of the present invention crushes the compacted mass into small masses, the mass does not become clogged at the transfer section of the conveyor.

[0008]

【Example】

 FIG. 2 shows the feeder belt 22 at the exit of the gypsum hopper 20 to which the embodiment of the present invention is attached. The granular material (gypsum) 21 in the hopper 20 is pulled out by the feeder belt 22 and supplied to the subsequent conveyor belt conveyor 23. The belt conveyor 23 conveys the granular material 21 to a desired place. The crushing device 1 according to the embodiment of the present invention is provided in the middle of the feeder belt 22. The crushing device 1 is composed of an impeller 2, a supporting portion 10 thereof, and a receiving roller 15 under the feeder belt.

FIG. 1 is a perspective view showing details of the crushing apparatus 1 of the embodiment. The impeller 2 radially protrudes knife-shaped crushing blades 3. In this example, the crushing blade 3 was made of flat steel having a thickness of 5 mm, a width of 50 mm, and a length of 450 mm bent in the width plane. Forty-eight flat steel plates were mounted radially at a central angle of 45 degrees and the mounting positions in the rotation axis direction were sequentially shifted.

The impeller 2 is rotatably supported on a fixed shaft 4 via a bearing 11. Both ends of the shaft 4 are fixed by supporting portions 10 on the side frame 12 of the feeder. The height of the shaft 4 is fixed at a position where the tip of the crushing blade 3 has a slight gap with the upper surface of the feeder belt 22. The powder particles 21 on the feeder belt 22 rotate the impeller 2. The blade 3 penetrates into the granular material 21, and if a lump is mixed in it, cuts and breaks it. The receiving roller 15 is arranged in a portion of the feeder belt 22 immediately below the impeller 2. The receiving roller 15 supports the reaction force when the blade 3 cuts the lump from above. A known rotating roller can be used. The impeller 2 of the apparatus of the present embodiment rotates without discharging any particular power when the powder or granules are discharged from the hopper, and crushes the compacted lumps mixed in the powder or granules in cooperation with the receiving roller.

[0011]

[Effect of the device]

 According to the present invention, the compacted lumps generated in the hopper or the like can be crushed to a size that does not cause clogging in the belt conveyor connecting and shutting suits, which contributes to stable operation. .

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment.

FIG. 2 is a side view of the feeder in which the embodiment is installed.

[Explanation of Codes] 1 Crushing device 2 Impeller 3 Crushing blade 4 Shaft 10 Support part 11 Bearing 12 Frame 15 Receiving roller 20 Hopper 21 Granules 22 Feeder belt 23 Belt conveyor

Claims (1)

[Scope of utility model registration request] 1. An impeller in which a large number of radial crushing blades are provided in a projecting manner, the impeller is rotatably supported on a conveyor belt with its axis orthogonal to the belt traveling direction, and the tips of the blades are placed on the upper surface of the conveyor belt. An apparatus for crushing compacted lumps of powder and granules, comprising: a support portion which is held at a position close to each other;