JPH0730590Y2 - Air transport pipe residue discharge device - Google Patents

Description

[Detailed Description of the Invention] [Industrial application] The present invention relates to an air transport pipe for transporting waste, and particularly to a residue having a large specific gravity from waste being transported upstream of the rising portion of the air transport pipe. The present invention relates to a residue discharge device for an air transport pipe capable of discharging air.

[Prior Art] Generally, as shown in FIG. 2, an air transport pipe for transporting waste by air has a pneumatic transport pipe 1 connected to an exhaust blower (not shown). An air flow (indicated by an arrow in the figure) is generated therein, and the waste 2 introduced from a waste input port (not shown) is transported by the air flow.

[Problems to be Solved by the Invention] By the way, the wastes 2 having a large specific gravity, such as metals, are contained in the wastes 2 introduced into the air transportation pipe 1. It moves along the lower side of the air transport pipe 1.

However, the air transport pipe 1 is laid so as to repeat rising and lowering, and the rising portion 4 as shown in FIG. 2 is provided in the middle of the air transport pipe 1 thus laid. At the rising portion 4, the waste 3 having a large specific gravity moving in the air transport pipe 1 cannot rise and easily remains as a residue 3a. When the residue 3a stays in this way, the flow of the other waste 2 is obstructed by the stayed residue 3a, and the other waste 2 also stays together with the residue 3a. As a result, there is a problem that the air transport pipe 1 is blocked and the waste 2 cannot be transported, and it is very difficult to discharge the residue 3a accumulated in the air transport pipe 1.

The present invention was created to solve the above problems,
An object of the present invention is to provide a residue discharge device for an air transportation pipe, which can effectively discharge the residue accumulated at the rising portion of the air transportation pipe.

[Means for Solving the Problems] In order to achieve the above object, the present invention is directed to a waste having a large specific gravity from a waste being transported, which is connected below a rising portion of an air transport pipe for pneumatically transporting waste. In the residue discharge device for removing the residue storage pipe, a residue storage pipe is connected in the middle of the air transport pipe, and the upstream end of the residue storage pipe has a diameter larger than the diameter of the air transport pipe. The end portion has the same diameter as the air transport pipe, has a steeply sloping surface on the lower inner surface, and is provided with an openable / closable discharge port for discharging the residue in the gravity direction below the expanded diameter portion. There is.

[Operation] Normally, waste is pneumatically transported with the discharge port of the residue storage pipe closed. Since the residue storage pipe has a larger diameter than the air transport pipe, the air flow stalls inside this residue storage pipe, and the waste that is heavier than the transport force of this air flow falls and automatically enters the residue storage pipe. Is stored as a residue in.

When discharging the stored residue, if the discharge port of the residue storage pipe is opened, the residue is easily discharged due to its gravity.

[Embodiment] An embodiment of the present invention will be described with reference to the drawings.

As shown in FIG. 1, the residue discharging device for an air transport pipe according to the present invention has a residue storage pipe 5 whose diameter is larger than that of the air transport pipe 1 connected in the middle of the air transport pipe 1. .

Specifically, as shown in the drawing, the residue storage pipe 5 is provided at the rising portion of the air transport pipe 1, and the diameter d of the downstream end thereof is set to be the same as the diameter d of the air transport pipe 1. In addition, the diameter D of the upstream end is made larger than the diameter d of the downstream end. That is, the diameter D of the upstream end is formed to be larger than the diameter d of the air transport pipe 1, and a steeply inclined surface is formed on the lower inner surface of the residue storage pipe 5. There is. Both ends of the residue storage pipe 5 and the air transport pipe 1 are connected via joint flanges 6 and 7. That is,
The joint flange 6 has a diameter D at the upstream end of the residue storage pipe 5.
The residual storage pipe 5 is formed to have a larger diameter and is attached to the upstream end of the residue storage pipe 5 and the corresponding air transport pipe 1 side. Further, the joint flange 7 is formed to have a diameter larger than the diameter d of the downstream end of the residue storage pipe 5, and is provided on the downstream end of the residue storage pipe 5 and the corresponding air transport pipe 1 side. It is installed. These joint flanges 6 and 7 are formed with air transport holes having the same diameter as the inner diameter of the air transport pipe 1, and the corresponding joint flanges 6, 6
And 7 and 7 are integrally connected by a mounting bolt 8. Thereby, the air transport pipe 1 and the residue storage pipe 5 are substantially connected.

Further, the residue storage pipe 5 has a discharge port 9 formed on the lower surface of the expanded diameter portion. The outlet 9 is provided with an opening / closing lid 10 for opening and closing the outlet 9 from the outside.
The pin 10 is attached via a pin 11 so as to be vertically rotatable.

Next, the operation of this embodiment will be described.

At all times, as shown in FIG. 1, the discharge port 9 of the residue storage pipe 5 is closed and the waste 2 is transported in the direction of the arrow in the figure. In this transportation, the waste 3 having a large specific gravity such as metal in the waste 2 moves along the lower surface side of the air transport pipe 1. When the waste 3 having a large specific gravity reaches the residual storage pipe 5, the residual storage pipe 5 is stalled by the air flow that stalls in the expanded portion of the residual storage pipe 5.
Cannot rise up and is stored as a residue 3a on the upstream side of the residue storage pipe 5 (FIG. 1).

When the stored residue 3a is discharged, the opening / closing lid 10 of the discharge port 9 is rotated downward (indicated by a two-dot chain line in the figure) to open the discharge port 9, and the residue 3a is weighted by itself. Is discharged.

In this way, the waste 3 having a large specific gravity is removed from the residue storage pipe 5
The residue 3a is automatically stored in the inside, and its discharge is discharged from the discharge port 9 by its own weight, so that it can be discharged very easily.

[Advantages of the Invention] According to the present invention, in the middle of the air transport pipe, the lower part thereof has a diameter larger than that of the air transport pipe, and the expanded part has a discharge port for discharging the residue in the gravity direction. Since a waste material storage pipe is provided, waste with a large specific gravity is automatically stored as a residue in the residual material storage pipe, and the discharge port is openable, so it only remains when the discharge port is opened. The object can be easily discharged by its own weight.

[Brief description of drawings]

FIG. 1 is a schematic partially cutaway side view showing an embodiment of the present invention,
FIG. 2 is a schematic view showing a conventional example. In the figure, 1 is an air transport pipe, 2 is a waste, 3 is a waste with a large specific gravity, 5 is a residual storage pipe, and 9 is an outlet.

Claims (1)

[Scope of utility model registration request] 1. A residue discharge device for removing a residue having a large specific gravity from a waste being transported, which is connected below a rising portion of an air transport pipe for transporting waste by air. The residue storage pipe is connected in the middle of the process, the upstream end of the residue storage pipe has a diameter larger than the diameter of the air transport pipe, and the downstream end has the same diameter as the air transport pipe. A residue discharge device for an air transport pipe, which has a steeply sloping surface, and an openable / closable discharge port for discharging the residue in the gravity direction below the expanded diameter portion.