JPH11114438A - Production of waste paper powder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To produce powder inexpensively by a method in which cotton (fibers) is charged into a crusher and kept in a sealed state, it is rotated at a specified rotational speed, operation is stopped after a prescribed length of time, it is filtered with a filter of prescribed micron mesh, and the filtered powder is packed in a bag. SOLUTION: Cotton (fibers) obtained by cutting waste paper and others into fibers is charged into a crusher 2 having screws 5 or blades, or synthetic resin or metal balls additionally and kept in a sealed state. It is rotated by an electric motor 4 at a rotational speed of 1,000 rpm or above. According to kinds of waster paper, after operation for a prescribed time, the crusher 2 is stopped. After that, corresponding to applications, it is filtered by a filter, for example, of 20 micron mesh for films or a filter with a vibrating screen, the filtered powder is transported under drying, and a prescribed amount of it is packed in a bag and sealed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing powder of recovered waste paper for recycling recycled waste paper such as old newspapers, old magazines, and cardboards, or mixed with synthetic resin or agricultural fertilizer.

[0002]

2. Description of the Related Art In recent years, various studies have been made on the point that the recycling of paper, which is a problem, has come to a standstill. Among them, as actual recycling of paper, toilet paper and various types of paper and bags are used.

[0003]

However, in such a state, there are the following problems. In the case of toilet paper, the concentration of impurities in recycled paper is inevitably increased, and to obtain toilet paper with good texture, the cost is increased to increase the purity, resulting in an unprofitable state.
In addition, there is a similar problem when generating paper or bags. For this reason, at present, it is in a state of sluggishness, and even if old newspapers and old magazines are collected, enormous costs are required for the treatment, which is extremely difficult. In addition, even if these recovered products are burned, there is a problem that costs are required for generating dioxin and treating ash after burning. The present invention has been made in view of the above points, and the purpose thereof is to
Recover old newspapers and magazines that are in a state of slack in the current state by means that do not cost money, and reused waste paper,
Another object of the present invention is to provide a method for producing waste paper powder mixed with a synthetic resin or an agricultural fertilizer.

[0004]

In other words, a means for achieving the object is to powder cotton (fiber) produced especially from waste paper into a size suitable for the intended use, and 1). In claim 1, recovered old newspapers, old magazines, cardboard, and those coated with magnetism or iron, and even waste paper such as those containing synthetic resin,
A method for producing cotton (fiber) obtained by pulverizing with a pulverizer or the like into powder, wherein the cotton is mixed with a screw or a blade, or a synthetic resin or a metal ball in addition to the screw or the blade. Into a crusher, and put it in a closed state, and rotate it at a rotation speed of 1000 RPM or more.
After a predetermined operation time according to the type of waste paper, the operation of the crusher is stopped, and then, for example, 20 to 20 depending on the application.
A waste paper powder characterized by being filtered through a 0-micron mesh filter or a filter with a vibrating sieve, and the filtered powder is transferred to a dry place, packed in a predetermined amount in a storage bag, and sealed. Production method.

[0005] According to a second aspect of the present invention, the size of the ball is set in accordance with the size of the powder, and when a powder having a small particle size is generated, a ball having a small diameter is used. A method for producing waste paper powder as described above.

[0006] 3) In the third aspect, when the powder is produced, a synthetic resin is mixed at a predetermined ratio according to a use purpose such as a garbage bag, or a nitrogen-based, phosphoric-acid-based, or potassium-based fertilizer for agricultural use. 3. The method for producing waste paper powder according to claim 1, wherein ammonium sulfate or the like is mixed at a predetermined ratio. 4) According to the fourth and fifth aspects, when the sheet is formed, the powder diameter is 20 μm or less.
It is not limited to 0 microns.

The pulverizer includes a compression type, an impact compression type, a shear type, and a friction type. In the present invention, any production method is included. Fertilizers also include those for cultivating ornamental plants. Furthermore, when the cotton is crushed by a crusher, the powder diameter is 20 to 200 microns, the specific gravity is extremely small, and the powder is scattered during the crushing. A pulverizer in a closed state is used. Further, for example, a filter having a mesh of 20 to 200 microns or a filter with a vibrating sieve according to the application is used, but when the diameter of the powder is determined by the operation time of the crusher and the diameter of the ball,
Not used.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic explanatory view showing one embodiment of the present invention, and FIG. 2 is a schematic explanatory view showing another embodiment of the present invention. In FIG. Cotton obtained by tearing waste paper such as newspaper, old magazine, corrugated cardboard, magnetic or iron-coated material, and further containing synthetic resin into a fibrous form, A mixer as a crusher for crushing to a size of about a micron, 3 is crushed powder, 4 is an electric motor for rotating the screw 5 at a high speed of 1000 RPM or more. In FIG. 2, reference numeral 6 denotes a synthetic resin such as polyethylene or vinyl chloride.

In FIG. 1, the present invention is a method of converting recovered waste paper such as old newspaper, old magazine, corrugated cardboard, magnetic or iron-coated paper, and further containing synthetic resin into cotton. This is a production method in which cotton (fiber) 1 obtained by pulverizing with a pulverizer or the like is converted into powder 3.
The cotton 1 is put into a crusher 2 having a screw 5 or a blade, or a synthetic resin or a metal ball (not shown) in addition to the screw or the blade, and is put in a sealed state.
The motor 4 is rotated by the electric motor 4 at a rotation speed higher than the PM, and after an operation time determined in advance by the type of waste paper, the crusher 2
Operation is stopped, and then 2 depending on the application, for example, film
It is filtered through a 0 micron mesh filter (not shown) or a filter with a vibrating sieve, and the filtered powder is transferred to a dry place, packed in a predetermined amount in a storage bag, and sealed. This is a method for producing waste paper powder.

When the cotton 1 is torn to produce powders 3 of various diameters, the size of the ball is set according to the size of the powder. Small diameter ones are used.

When the powder 3 is produced, when the sheet is produced by an extruder, it must be mixed with a synthetic resin. In this case, for example, the physical ratio of the cotton 1 and the synthetic resin 6 is set to 30%: 70%. Then, it is put into the crusher 2. When used as agricultural fertilizer (not shown)
Is determined in the same manner as in the synthetic resin 6 in accordance with the purpose of use. The type of fertilizer may be a single fertilizer or a mixed fertilizer.

Next, the manufacturing method will be described with reference to FIG. It is not the gist of the present invention that old newspapers, old magazines, corrugated cardboard, magnetic or iron-coated products, and even those containing synthetic resin are finely cut into fibers to produce cotton 1. Therefore, the explanation is omitted here. First, the lid 2a of the mixer 2 is opened and a predetermined amount of cotton 1 such as absorbent cotton, which is generally well-known, is put into the mixer 2 and completely sealed. Thereafter, the electric motor 4 is set to, for example, 1500 RPM.
Drive at a rotational speed of. At this time, if the electric motor 4 is at a low speed, the cotton 1 is wound around the screw 5 and is not crushed.
The load is applied to the electric motor 4 and the electric motor 4 is damaged. The gist of the present invention resides in driving at a rotation speed of 1000 RPM or more. In addition, a plurality of balls 7 for grinding are put in the mixer 2. The size of the ball 7 is determined by the size of the powder 3.

The cotton 1 is gradually unraveled, and the powder 3 having a low specific gravity increases in the mixer 2 over time.
Completely disappears and the powder 3 becomes full.
Then, at this time, the electric motor 4 stops rotating. The suspended powder 3 gradually precipitates at the bottom of the mixer 2. The precipitated powder 3 is opened with the lid 2b opened and passed through a mesh filter (not shown) according to the intended use, and then a predetermined amount of the powder 3 is packed in a bag.

From the feeding of the cotton 1 into the mixer 2, the rotation time of the mixer 2, the amount packed in the bag, and the transfer status of the powder 3 are monitored by a photo sensor, a proximity switch, an electrostatic induction sensor, or the like. Needless to say, it is automated. Further, the powder 3 has a property of easily absorbing moisture, and is appropriately heated and dried in each step.

Next, when powder is used for molded articles such as garbage bags, sheets, buckets and toys, or fertilizers for agricultural use or ornamental plants, cotton 1
Is determined, and the particle size is also determined. For example, when used for a sheet, for example, 70% of synthetic resin,
Each of them was charged so as to have a cotton content of 30%, and the particle size was 2 powder when the sheet thickness was 50 microns.
Bring to 0 microns. Then, after the rotation is performed for a predetermined time as described above, the powder obtained by mixing the two is dropped on the filter, and thereafter, the operation of the process shown in FIG. 1 is performed. Note that the rotation time of the mixer 2 is also related to the size of the synthetic resin particles, and this point is set based on a value calculated in advance by an experiment. When fertilizer is added, there are various cases, for example, in the case of a single nitrogen compound,
Alternatively, a mixture of various fertilizers is assumed, and the ratio of fiber to fertilizer is determined according to the purpose, and the rotation time of the mixer is set based on experiments. Also, the size of the grains is determined in the same manner as described above.

[0016]

As described above, according to the present invention, old newspapers and magazines, which are currently in a state of sluggishness, can be solved by an inexpensive manufacturing method, and the powder obtained by this method can be used. It is used for cultivation of agricultural and ornamental plants by mixing various fertilizers, and can be used for garbage bags and agricultural plastic sheets by mixing with synthetic resin. is there.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view showing one embodiment of the present invention.

FIG. 2 is a schematic explanatory view showing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cotton 2 Mixer 3 Powder 4 Electric motor 5 Screw 6 Synthetic resin 7 Ball

Claims (5)

[Claims] 1. A crusher for flocking waste paper such as collected old newspaper, old magazine, corrugated cardboard, magnetic or iron-coated material, and further containing synthetic resin. A method for producing a powder of cotton (fiber) obtained by pulverization, wherein the cotton is put into a pulverizer having a screw or a blade, or a synthetic resin or metal ball in addition to the screw or the blade, and hermetically sealed. Under the condition, rotate at a rotation speed of 1000 RPM or more, after a predetermined operation time according to the type of waste paper, stop the operation of the crusher, and then filter with a micron mesh or vibrating screen filter according to the application The method for producing waste paper powder, wherein the filtered powder is transferred to a dry place, packed in a storage bag in a predetermined amount, and sealed. 2. The size of the ball is set according to the size of the powder, and when a powder having a small particle diameter is generated, a ball having a small diameter is used.
A method for producing powder of waste paper according to the above. 3. When producing the powder, a synthetic resin may be mixed at a predetermined ratio according to a use purpose such as a garbage bag, or a nitrogen-based or phosphate-based or potash-based or ammonium sulfate as an agricultural fertilizer may be used. The method for producing waste paper powder according to claim 1 or 2, wherein the powder is mixed at a ratio. 4. When a sheet is generated, the powder diameter is set to 20.
The method for producing waste paper powder according to claim 1, wherein the particle size is less than micron. 5. The method according to claim 1, wherein the powder diameter is not limited to 20 microns when forming a molded product such as a bucket or a toy.
A method for producing powder of waste paper according to the above.