JPH0632330Y2 - Screw solidification device - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention compresses and solidifies waste containing plastic waste,
The present invention relates to a screw solidification device for producing a solidified molded product that is used as a solid fuel or used for landfill.

(B) Conventional technology As shown in Japanese Utility Model Laid-Open No. 61-92494, a conventional screw solidifying device is connected to a hopper (1) for injecting waste containing plastic waste and a lower part of the hopper (1). Casing (2) and a compression cylinder connected to the front end of this casing (2)
(3) and the screw (6) installed inside the casing (2)
And a rod (7) fixed to the front end of this screw (6), the waste plastic-containing waste introduced from the hopper (1) is transferred forward by the screw (6), and is compressed into a compression cylinder. It is molded by the frictional resistance of the inner surface of (3) and discharged from the tip of the compression cylinder (3) as a molded product.

(C) Problems to be solved by the invention At this time, the center hole (11) is formed on the molded product by the rotation of the core rod (7).
Although this center hole (11) is a hole for discharging water vapor, gas, etc. generated during molding to the outside, this center hole (11)
There was a problem in that the wall surface of the product was rubbed by the core rod (7) to generate heat and emit smoke, which ignited and the molded product began to burn.

(D) Means for Solving Problems The present invention has been made to solve the above problems.
Waste plastic-containing waste introduced from the hopper is transferred to the front compression cylinder by a screw inside the casing connected to the lower part of the hopper, and the waste is melted and solidified by the frictional resistance of the inner surface of the compression cylinder. In the screw solidifying device to be molded by, in the front end of the screw, a core rod whose shaft center coincides with that of the screw is fixed, and a water supply passage is provided in the main shaft and the core rod of the screw. It is characterized in that a side face is provided with an injection port communicating with the water supply passage.

(E) Action When waste is put in from the hopper, the waste passes through the hopper and enters the casing.

The waste that has entered the casing is transferred to the compression cylinder by a screw, molded by the frictional resistance of the inner surface of the compression cylinder, and discharged as a molded product from the tip of the compression cylinder.

At this time, a center hole is formed in the molded product by the rotation of the core rod, and the wall surface of this center hole is constantly rubbed by the core rod to generate heat, and when this heat becomes severe and smoke comes out. The on-off valve is opened and the fire extinguishing liquid is jetted from the pipe through the water supply channel to the wall surface of the central hole from the jet port.

Then, the fever of smoke subsides.

(F) Embodiment Hereinafter, referring to the drawings, an embodiment of the present invention will be described. (1) is a hopper for throwing waste containing plastic waste, and a hopper having a cylindrical shape is provided at a lower portion of the hopper. The rear part of the casing (2) is connected in series, and this casing (2)
A compression cylinder (3) having the same shape as the casing (2) is continuously provided at the front end of the. Inside the casing (2), the casing (2)
And a screw (6) consisting of a main shaft (4) of substantially the same length as the main shaft (4) and a blade (5) spirally provided on the main shaft (4) is installed, and at the front end of the screw (6). Spindle of screw (6)
A core rod (7) whose axis coincides with (4) is fixed, and it is rotated in the direction of arrow (9) by a driving device (8) provided at the rear end of the casing (2) together with the screw (6). It is designed to be used.

By the way, the blade (5) has two stages of the first blade (5a) and the second blade (5b), and the first blade (5a) is located behind the front part of the main shaft (4) and the second blade (5a). (5b) are fixed to the front end.

A water supply channel (10) is bored in the axial direction up to the entire length in the main shaft (4) and near the front end in the core rod (7), and the water supply channel (10) is formed on the side surface of the core rod (7). A plurality of injection ports (11) that communicate with 10) are provided.

A rotary joint (12) is provided at the rear end of the water supply passage (10), and a pipe (14) having an on-off valve (13) interposed is connected to the rotary joint (12).

The operation of the present invention will be described below. First, the driving device (8) is operated and the screw (6) is moved in the direction of arrow.
Rotate in direction (9).

Next, when waste containing plastic waste is put into the hopper (1), the waste passes through the hopper (1) and the casing.
(2) Enter inside.

The waste that has entered the casing (2) is the first of the screw (6).
It is transferred forward by the blade (5a).

Then, when it is transferred to the intermediate portion between the first blade (5a) and the second blade (5b), it is not transferred here because there is no blade,
It is filled and pre-compressed with wastes sent one after another.

Further, the waste plastic is pulverized and compressed by the second blade (5b) and the waste plastic is softly fluidized by the frictional resistance of the inner surface of the compression cylinder (3) and molded so as to contain the waste, and is molded from the tip of the compression cylinder (3). It is discharged as a thing (15).

At this time, the molded product (15) has a central hole (16) through which water vapor, gas, etc. generated during molding by the rotation of the core rod (7) are discharged to the outside.
Is formed, and the wall surface of this central hole (16) is constantly
It is rubbed by (7) to generate heat, and when this heat is exacerbated and smoke comes out, the on-off valve (13) is opened and the extinguishing liquid is supplied from the pipe (14) through the water supply channel (10) to the injection port (11). ) …… Smoke and heat the molded product (15) by ejecting it into the center hole (16).

Then, the molded product (15) is appropriately cut by cutting means (not shown) in front of the compression cylinder (3).

(G) Effect of the Invention As described above, the present invention provides a water supply passage in the main shaft of the screw and the core rod, and the wall of the center hole of the molded product is rubbed by the core rod to generate heat, and the smoke causes the water supply. Since the fire extinguishing liquid is sprayed from the passage onto the wall surface of the center hole of the molded product, the molded product does not ignite and start burning.

[Brief description of drawings]

FIG. 1 is an overall view of the screw solidifying device of the present invention, and FIG. 2 is a sectional view taken along line AA of FIG. (1) is a hopper, (2) is a casing, (3) is a compression cylinder, (4) is a main shaft, (6) is a screw, (7) is a rod, (10) is a water supply channel, (1)
1) is an injection port.

Claims (1)

[Scope of utility model registration request] 1. A waste plastic-containing waste material introduced from a hopper is transferred to a front compression cylinder by a screw installed inside a casing connected to a lower portion of the hopper,
In a screw solidification device configured to melt and solidify the waste by frictional resistance of the inner surface of the compression cylinder, the front end of the screw, a core rod having a screw and an axial center are fixed, the screw of the screw A screw solidifying device having a water supply passage provided in the main shaft and the core rod, and an injection port communicating with the water supply passage provided on a side surface of the core rod.