JP3352966B2 - Vertical slow pressure waste paper processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention has been around for a long time since recycling has been called for from the viewpoint of nature protection in the papermaking industry. In response to this increase in demand for waste paper, various waste paper processing machines have been developed. In view of this situation, the present invention relates to a vertical gentle pressure type waste paper processing apparatus developed to improve the sterilizing and bleaching effects of waste paper.

[0002]

2. Description of the Related Art Conventionally, there is a waste paper processing machine in which a rotary screw is provided in a cylinder, and waste paper and a chemical as raw materials are charged into the cylinder to perform sterilization and bleaching treatments.

[0003]

However, in a conventional paper processing machine in which a rotary screw is provided in a conventional cylinder, and a raw material and a chemical are charged into the cylinder to perform sterilization and bleaching treatments, first, the waste paper processing machine is closely related to pollution. Since it becomes a raw material containing chemicals, post-treatment and countermeasures against pollution are necessary. In addition, the bleaching process has a problem that a large amount of water is required at the same time as a large amount of a chemical is required.

In view of these circumstances, the present invention improves the hermeticity by adjusting the pressure in the upright second cylindrical cylinder with a damper, and further increases the temperature of the raw material to 70 ° C. by mixing and stirring the raw materials.
Rank up. In addition, ozone gas is injected during the transportation of the raw material in the second cylindrical cylinder, and sterilization and bleaching are performed. In order to neutralize the harm of the ozone gas, the ozone gas is maintained in a sealed state for at least several minutes. It is another object of the present invention to provide a vertical low pressure waste paper processing apparatus that determines the pressure and the injection port so as not to be discharged to the outside and sterilizes and bleach the raw material.

[0005]

The present invention employs the following technical means. According to the first aspect of the present invention, a first cylindrical cylinder in which a first transport screw for transporting a raw material is installed is provided laterally, and a raw material inlet is provided at one end of the first cylindrical cylinder. A second cylindrical cylinder is erected at the end opposite to the raw material inlet of the cylinder, and a second conveying screw for conveying the raw material upward from below into the second cylindrical cylinder, and a mixing for mixing and stirring the raw material. A technical means is adopted in which a stirring rotary blade is provided, an ozone gas inlet is provided at an appropriate position above the second transfer screw, and an adjusting damper for adjusting pressure by an air cylinder is provided at an upper outlet of the second cylindrical cylinder. did.

According to the second aspect of the present invention, the first cylindrical cylinder is traversed so as to be supported by a leg, a raw material inlet is formed at one end, and the raw material supplied from the raw material inlet through the first cylindrical cylinder is formed. Is conveyed to the other end, a second cylindrical cylinder is erected so as to convey the raw material conveyed to the other end of the first cylindrical cylinder upward, and a first conveying screw is provided in the first cylindrical cylinder. A second conveying screw rotatably provided by the first motor and conveyed from a lower portion to a substantially intermediate portion in a vertically provided second cylindrical cylinder, and a mixing and stirring rotary blade for mixing and stirring the raw material from the intermediate portion to the upper portion. Provided rotatably by two motors, above the second transport screw,
That is, one or more ozone gas inlets are provided at a position close to the mixing and stirring rotary blades, or a plurality of ozone gas inlets are provided at intervals, and a discharge port is formed at the upper part of the second cylindrical cylinder, and the pressure can be adjusted by an air cylinder at this discharge port. The technical means of providing an adjustment damper was adopted.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an embodiment shown in the drawings. FIG. 1 is a front view showing the entire configuration of a vertical low-pressure waste paper processing apparatus according to the present invention, and FIG. 2 is a plan view of the same.

First, the entirety of a vertical gentle pressure type waste paper processing apparatus will be schematically described with reference to FIGS. First cylindrical cylinder 1
Is supported horizontally by several legs 14, provided with a raw material inlet 2 at one end, a first motor 4 at the other end, and a first transporter connected to a rotating shaft connected to the first motor 4. The supplied raw material is conveyed by providing the screw 3 for use and rotating the first motor 4. A second cylindrical cylinder 5 capable of transporting the raw material conveyed to the side opposite to the raw material inlet 2 is set up vertically or at an appropriate angle to the upper portion of the first cylindrical cylinder 1.

The second cylindrical cylinder 5 is provided with a second transport screw 6 for transporting the raw material rotated by a second motor 7 upward, and a mixing and stirring rotary blade 8 for mixing and stirring the raw material. The second conveying screw 6 and the mixing and stirring rotary blade 8 are provided with a second conveying screw 6 from below to a substantially middle portion as shown in the figure, and a mixing and stirring rotary blade 8 is provided immediately above the second conveying screw 6. Have been. An ozone gas injection port 9 is provided in an upper portion of the second transport screw 6 so that ozone gas can be injected into the second cylindrical cylinder 5 from an appropriate outer peripheral portion of the second cylindrical cylinder 5. The ozone gas inlet 9
Can be provided one or more.

Further, an adjustment damper 11 is provided above the second cylindrical cylinder 5 so that the pressure can be adjusted by the air cylinder 10 so as to open and close the outlet 13 for discharging the treated material at the outlet.

A second conveying screw 6 and a mixing and stirring rotary blade 8 are provided in a second cylindrical cylinder 5 erected on the first cylindrical cylinder 1 provided horizontally. And the second
Although the second transport screw 6 and the second motor 7 for rotating the mixing and stirring rotary blades 8 provided in the cylindrical cylinder 5 are provided at the upper portion in FIG. 1, they may be provided at the lower portion.

Further, the second cylindrical cylinder 5 to be erected is
In the embodiment shown in FIG. 1, only one is provided. However, it is also possible to increase the operation rate by providing a plurality of these.

Next, the configuration and operation will be described in more detail. A raw material in a normal temperature state is supplied from a raw material charging port 2 provided at one end of a horizontally provided first cylindrical cylinder 1, and the raw material is supplied to a first cylindrical cylinder 1 by a first transport screw 3 rotatably provided by a first motor 4. 1 (conveyed from right to left in FIG. 1). A second cylindrical cylinder 5 is provided upright on the other end side of the first cylindrical cylinder 1 to receive a conveyed raw material, and a second conveying screw 6 for conveying the raw material upward is rotatable by a second motor 7. Provide.

The second conveying screw 6 is provided with the second standing screw.
The raw material is provided almost up to the middle of the cylindrical cylinder 5, and the raw material is mixed and stirred immediately above the second cylinder 5 together with the second conveying screw 6 so that the temperature can be raised from room temperature to about 70 ° C.
A mixing / stirring blade 8 rotated by a motor 7 is provided. An ozone gas inlet 9 is provided so that ozone gas can be injected into the vicinity of the upper end of the second conveying screw 6 outside the second cylindrical cylinder 5, that is, immediately below the mixing and stirring rotary blade 8.
One or a plurality of them at appropriate intervals,
In particular, according to an experiment, when the ozone gas injection port 9 is provided at a height of about 120 cm from the floor, the raw material can be sterilized and bleached without releasing the ozone gas to the outside very reliably.

In order to prevent the ozone gas from leaking to the outside, the pressure in the second cylindrical cylinder is set to 2 to 7 kg /
An adjustment damper 11 is provided at an upper part of the second cylindrical cylinder 5 at a discharge port 12 from which the processed raw material is discharged so that the pressure is adjusted by the air cylinder 10 so that the pressure is adjusted to 2 cm2.

The second conveying screw 6 and the mixing and stirring rotary blade 8 are fixed to a single rotating shaft and are simultaneously rotated by a second motor 7. And the raw material is the second conveying screw 6
Is transported upward from below. Further, the raw materials which were mixed and stirred by the mixing and stirring rotary blades 8 and were at room temperature due to frictional heat are discharged up to about 70 ° C. In this way, without using any chemicals, ozone gas is injected, and the sterilizing power and bleaching power of the ozone gas and the raw material are heated to high temperature by frictional heat while being transported while being mixed and stirred, and sterilization and bleaching are performed.
It is discharged from the outlet.

Experiments have confirmed that it is extremely favorable that the ozone gas injection port is installed at a position approximately 120 cm from the floor and near the upper end of the second transport screw 6. did.

Since the discharge of the ozone gas to the outside has a bad effect on the human body, the ozone gas is confined in the second cylindrical cylinder 5 until the ozone gas is discharged from the discharge port until the ozone gas has no bad effect on the human body. It has been found from various experimental results that it is necessary to design so that the raw material stays for at least 2 minutes.

[0019]

According to the present invention, as a result of employing the above configuration,
The following effects can be obtained. (1) Since a bactericide and a bleaching agent are not required, a small amount of water may be used, and no post-treatment is required. (2) Particularly when trying to increase the bactericidal and bleaching power with conventional bactericides and bleaching agents, a large amount of chemicals is required and there is a drawback that it becomes a source of pollution. No worries.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a vertical gentle pressure type waste paper processing apparatus according to the present invention.

FIG. 2 is a plan view showing an embodiment of the vertical gentle pressure type waste paper processing apparatus of the present invention.

[Explanation of symbols]

1 {first cylindrical cylinder 2} raw material inlet 3} first transport screw 4 {first motor 5} second cylindrical cylinder 6 {second transport screw 7} second motor 8} ‥ Mixing and stirring rotary blade 9 ‥‥ Ozone gas inlet 10 ‥‥ Air cylinder 11 ‥‥ Adjustment damper 12 ‥‥ Raw material outlet 13 ‥‥ Port 14 ‥‥ Leg

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-2-99680 (JP, A) JP-A-53-2602 (JP, A) JP-A-62-2600 (JP, U) 512629 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) D21B 1/00-1/40 D21C 5/02 D21C 9/10-9/16

Claims (2)

(57) [Claims] 1. A first cylindrical cylinder in which a first transport screw for transporting a raw material is installed, and a raw material charging port is provided at one end of the first cylindrical cylinder. A second cylindrical cylinder is erected at the end opposite to the mouth, and a second conveying screw that conveys the raw material upward from below into the second cylindrical cylinder, and a mixing and stirring rotary blade that mixes and stirs the raw material are provided. An ozone gas inlet is provided at an appropriate position above the second transport screw, and an adjusting damper for adjusting pressure by an air cylinder is provided at an upper outlet of the second cylindrical cylinder. Pressed waste paper processing equipment. 2. A first cylindrical cylinder is traversed so as to be supported by legs, a raw material inlet is formed at one end, and the raw material introduced from the raw material inlet is conveyed to the other end in the first cylindrical cylinder, A second cylindrical cylinder is erected to transport the raw material transported to the other end of the first cylindrical cylinder upward,
A first transfer screw is inserted into the first cylindrical cylinder in the first cylinder.
A second conveying screw rotatably provided by a motor and conveyed from a lower portion to a substantially intermediate portion in a vertically provided second cylindrical cylinder, and a mixing and stirring rotary blade for mixing and stirring the raw material from the intermediate portion to the upper portion are provided by a second motor. Provided rotatably by the second
One or more ozone gas inlets are provided at the upper part of the conveying screw, that is, at a position close to the mixing and stirring rotary blades, or a plurality of ozone gas inlets are provided at intervals. A vertical slow-pressure waste paper processing apparatus provided with an adjustment damper capable of adjusting pressure by a cylinder.