JPH0577118U - Clog prevention device in the discharge side casing of the forward and reverse rotating screw conveyor - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent material clogging in the discharge side casing of the forward / reverse rotation screw conveyor. [Structure] Both ends of the screw shaft 7 in the casing ahead of the discharge port of the screw conveyor (right side omitted)
, An auxiliary screw blade 5 that conveys the material in the same direction as the conveying screw blade 4 and an auxiliary screw blade 6 that conveys the material in the opposite direction.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a device for preventing clogging in the discharge side casing of a forward and reverse rotating screw conveyor.

[0002]

[Prior Art]

 If the material to be conveyed by the screw conveyor is a mud that has strong adhesion, the material in the casing ahead of the discharge port of the screw conveyor will block the discharge port, and the discharge port will be blocked and the trough lid will be pushed up. There is a problem that the power supply motor is overloaded. To solve this problem, the width of the casing on the discharge side was generally expanded, and the screw shaft on the discharge side was provided with an auxiliary screw blade having a twist angle in the opposite direction to the screw blade for conveyance. .

[0003]

[Problems to be solved by the device]

 As mentioned above, the problem that the material discharged on the discharge side of the screw conveyor is clogged can be solved by providing the screw shaft on the discharge side with an auxiliary screw blade having a twist angle opposite to the screw blade. This does not solve the problem in the forward / reverse rotation screw conveyor in which the material to be conveyed is loaded from the center and the screw is rotated in the forward or reverse direction to cut and convey the material to the left or right.

The present application prevents clogging in the discharge-side casing of a forward / reverse rotating screw conveyor that can discharge the conveyed material satisfactorily without clogged material in the casing even in such a forward / reverse rotating screw conveyor. It is an object to provide a device.

[0005]

[Means for Solving the Problems]

 The present invention solves the above-mentioned problems. Both forward and reverse rotations in which the material to be conveyed is charged from the center and the screw is rotated in the forward or reverse direction to cut and convey the material to the left or right. It was applied to the clogging prevention device in the discharge side casing of the screw conveyor, and the following technical measures were adopted. That is, each of the left twist auxiliary screw blade and the right twist auxiliary screw blade having a twist angle smaller than the twist angle of the screw blade is attached to the screw shaft in the casing ahead of the discharge port of the screw conveyor. This is a device to prevent clogging in the discharge side casing of the forward / reverse rotation screw conveyor.

[0006]

[Action]

 Since the present invention is configured as described above, even when the screw blade is rotated in both the forward and reverse directions, the discharge side casing is operated by the action of the auxiliary screw blade that conveys the material in the direction opposite to the direction of the material conveyed by the screw blade. The material to be conveyed can be discharged from the outlet without clogging.

[0007]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of an auxiliary screw blade and a conveying screw blade, FIG. 2 (a) is an explanatory view of a side surface, and FIG. 2 (b) is a sectional view taken along the line AA of FIG. 2 (a). The features of the present application are that the screw shaft 7 in the casing 8 ahead of the discharge port of the screw conveyor has an auxiliary screw blade 5 that conveys the material in the same direction as the screw blade 4 for conveyance, and an opposite direction to the screw blade 4 for conveyance. This is because the auxiliary screw blade 6 for conveying the material is provided.

The material to be conveyed is charged from the charging port 1 at the center of FIG. 2, the material is conveyed leftward (forward rotation), and is discharged from the discharge port 2. In this case, the auxiliary screw blade 6 acts so as to convey the material in the direction opposite to that of the screw blade 4, so that the conveyed material is not clogged in the left end casing 8 of the screw conveyor. The same applies when the material is conveyed to the right (reverse rotation).

[0009]

[Effect of the Invention] Since the present invention does not cause material clogging in the carry-out side casing of the screw conveyor, it has excellent effects in stabilizing the operation and improving productivity.

[Brief description of drawings]

FIG. 1 is a perspective view of an auxiliary screw blade and a conveying screw blade according to an embodiment of the present invention.

2 (a) is a side view of an embodiment of the present invention, and FIG. 2 (b) is a sectional view taken along the line AA of FIG. 2 (a).

[Explanation of symbols]

 1 Loading Port 2 Discharging Port 3 Discharging Port 4 Transport Screw Blade 5 Auxiliary Screw Blade 6 Auxiliary Screw Blade 7 Screw Shaft 8 Casing

Claims (1)

[Scope of utility model registration request] 1. A clogging in a discharge side casing of a forward / reverse rotating screw conveyor in which a material to be conveyed is charged from a central portion and the screw is rotated in a forward or reverse direction to divide and convey the material to the left or right. In the prevention device, each of a left twist auxiliary screw blade and a right twist auxiliary screw blade having a twist angle smaller than the twist angle of the screw blade is attached to the screw shaft in the casing ahead of the discharge port of the screw conveyor. A device for preventing clogging in the discharge-side casing of a forward / reverse rotation screw conveyor.