JP2001137726A - Gypsum board grinding and fractionating treatment apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gypsum board grinding and fractionating treatment apparatus capable of efficiently fractionating and recovering a gypsum powder having high purity and reusable for various uses as it is, compact and easy to operate and capable of being moved to the generation spot of a gypsum board waste material to be arranged. SOLUTION: This gypsum board grinding and fractionating treatment apparatus is equipped with a pair of crushing rolls for compressing a gypsum board from both surfaces thereof, a pair of separation rolls having pins spirally planted in the peripheral surface thereof from one end to the other end thereof at a predetermined interval and crushing the gypsum board from both surfaces thereof and a separation means for fractionating the crushed matter of the gypsum board into paper and crushed gypsum and the crushing rolls send out the gypsum board toward the separation rolls and the separation rolls send out the crushed matter to the separation means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gypsum board crushing and sorting apparatus, and more particularly, to processing gypsum board scrap generated during the production of gypsum board or waste gypsum board generated as building waste material.
The present invention relates to an apparatus for collecting paper and gypsum as reusable resources.

[0002]

2. Description of the Related Art Gypsum boards used for interior finishing work of buildings and the like are mostly used for interior construction work and are consumed at the site, so that residual materials are easily generated. In addition, the occurrence of defective products cannot be avoided even in the gypsum board manufacturing process. Since these residual materials and scraps cannot be used for other purposes, they are usually landfilled as industrial waste. However, recently, due to the revision of the law, the disposal procedure for industrial waste has become complicated, and the separation of waste has been obligated, making it necessary to recycle waste gypsum boards and other resources. Have been.

[0003] Gypsum board is made by bonding paper on the front and back with hardened plate-shaped gypsum as the core. If gypsum and paper can be separated with high purity, the gypsum can be reused. Since the separated paper can be easily burned, it can be used as fuel. Therefore, several gypsum board processing apparatuses for crushing and separating gypsum board to the extent that it can be reused have been proposed, but all of them are crushed using a hammer crusher or shredder, crushed, and then sieved. The method of dividing is adopted.

However, these treatment apparatuses separate fine paper pieces from finely ground gypsum powder, and require the use of an extremely fine sieve. Therefore, the efficiency of the sieving process is low. When it contained moisture, it was often impossible to treat it at all. In addition, since the gypsum powder thus separated contains a large amount of fine fibers generated from paper, it has never been possible to recycle the gypsum powder and use it as it is. In addition, the conventional crushing type machine is large, and it is not easy to collect a large amount of waste gypsum board from a large number of sites where waste material is generated, which is suitable for processing in a large-scale apparatus. there were.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the conventional gypsum board processing apparatus, and has an object of high purity, which can be reused for various uses as it is. A gypsum board crushing and sorting apparatus capable of efficiently separating and recovering gypsum powder, being compact and easy to operate, and capable of being moved to and installed at a gypsum board waste material generation site. Is to do.

[0006]

SUMMARY OF THE INVENTION The object of the present invention is to provide a pair of crushing rolls for compressing a gypsum board from both front and back sides and spirally implanting the peripheral surface at a predetermined interval from one end to the other end. A pair of separation rolls for crushing the gypsum board from both sides, and separation means for separating the crushed material of the gypsum board into paper and crushed gypsum. This is achieved by a gypsum board crushing and sorting apparatus characterized in that the separation roll is sent out to the separation roll, and the crushed material is sent out toward the separation means.

[0007] In the gypsum board crushing and sorting apparatus of the present invention, the pair of separation rolls are arranged such that pins arranged spirally are symmetrical with respect to each other and rotate when rotated at a constant speed in opposite directions. It is preferable that the pins are combined in parallel so as to take a position where the pins do not come into contact with each other. When the pair of separation rolls is provided below the pair of crushing rolls, it is more compact and the driving operation is easier. There are advantages.

[0008] Further, the separating means includes a gutter-shaped first sieve for receiving all of the crushed material, and a gutter-shaped second sieve provided below the first sieve and having a shield on the upper side. A rotary helix provided on the second sieve for transferring material on the second sieve along an axis; a funnel provided below the first and second sieves The crushed material received by the first sieve is sent to the end on the first sieve in a direction parallel to the axis of the separation roll by rotation of the pin, and the second By being configured to drop onto one end of the sieve and be sent in the other direction, the crushed paper and the crushed gypsum can be more efficiently separated and collected.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The gypsum board crushing and sorting apparatus of the present invention will be described below in detail with reference to FIGS. Here, FIG. 1 is a longitudinal sectional view of an example of the gypsum board crushing and sorting apparatus of the present invention, and FIG. 2 is a center line position X in FIG.
It is the longitudinal cross-sectional view which looked at the cross section of -X from the left.

In the figure, reference numerals 1a and 1b denote a pair of crushing rolls provided in parallel in a horizontal direction.
The interval b is set smaller than the thickness of the gypsum board A. Reference numerals 2a and 2b denote a pair of separation rolls provided in parallel in a horizontal direction, and the peripheral surfaces of the separation rolls 2a and 2b are arranged at the same pitch but along the opposite spiral, from one end to the other end. Spirally at predetermined intervals toward the pin 21
Has been planted.

As can be seen from FIG. 2, the arrangement of the pins 21 is such that in the separation roll 2b, ten pins 21 per pitch are provided at equal intervals in a right-handed screw shape. In 2a, ten pins 21 per pitch are provided at equal intervals in a left-handed screw shape so as to be palm-symmetric with the separation roll 2b. The separation roll 2a and the separation roll 2b are provided such that the position of the pin 21 is shifted by approximately 1/2 pitch.

And these crushing rolls 1a and 1b,
Each of the separation rolls 2a and 2b is configured to rotate in a direction opposite to each other, thereby sending the gypsum board A sandwiched between the rolls downward. But pin 2
The shape, size, number, arrangement, etc. of 1 are not limited, and can be appropriately changed as long as the object of the present invention is met.

Below the separation rolls 2a and 2b, a gutter-like cross section having a substantially W-shaped cross section is provided at a position not in contact with the tip of the pin 21 so as to surround the lower side of the separation rolls 2a and 2b. One sieve 3 is provided. The first sieve 3 is formed of, for example, a perforated plate having a large number of holes having a diameter of about 10 mm. The first sieve 3 is provided on the first sieve 3 by rotating a spirally arranged pin 21. While stirring the ingredients,
The material can be sent gradually in one direction and the first sieve 3
It is configured to be able to be discharged downward from the drop port 3a formed at the end of.

A plurality of holes similar to the first sieve 3 are provided only below the first sieve 3 below the first sieve 3, and a gutter-like second sieve having a shield 4a is provided above the first sieve 3. A material 4 is provided to receive only the material discharged from the above-mentioned drop port 3a, but is configured so that the material falling from other positions is not blocked by the shield 4a. And this second sieve 4
The rotary spiral 5 is provided so as to be coaxial on
As the rotary spiral 5 rotates, the material on the second sieve 4 is sent through the second sieve 4 while being stirred, and the material is discharged from the outlet 4b.
It is constituted so that it can be discharged from.

Further, below the second sieve 4, the first sieve 4 is provided.
A funnel body 6 capable of receiving and collecting all of the under-sieved material passing through the sieve 3 and the under-sieved material passing through the second sieve 4 is provided. A rotating spiral 7 for discharging the waste material from the discharge port 6a is provided. Reference numeral 8 denotes a container of a material mainly containing paper or the like discharged from the discharge port 4b, and reference numeral 9 denotes a container of a material mainly containing gypsum powder discharged from the discharge port 6a.

In carrying out the crushing and sorting of waste gypsum board using the gypsum board crushing and sorting apparatus of the present invention configured as described above, first, the crushing rolls 1a, 1
When the gypsum board A is fed from above, the gypsum board A is compressed from both the front and back by the crushing rolls 1a and 1b, and the internal structure of the core portion is destroyed and relatively finely crushed. Separation is promoted. On the other hand, the paper portion is not torn, and is sent out toward the separation rolls 2a and 2b while maintaining a continuous shape.

Thus, the gypsum board A sent between the separation rolls 2a and 2b is pierced and torn by the pin 21, and both the crushed gypsum and the paper fragments are passed through the first sieve 3. Fall on. Then, the crushed material is further crushed by the pins 21 on the first sieve 3, torn, and further stirred, so that the crushed gypsum becomes shattered, and
The gypsum powder passes through the sieve holes of the first sieve 3 and falls toward the funnel body 6 during this time. At that time, the gypsum powder is not blocked by the shield 4a and does not enter the second sieve 4.

On the other hand, the crushed material mainly composed of paper that has traveled on the first sieve 3 while separating the gypsum powder enters the second sieve 4 from the falling port 3a, and then rotates the spiral 5 The gypsum powder is further agitated and proceeds on the second sieve 4 while separating the gypsum powder. Most of the gypsum powder is discharged into the container 8 from the outlet 4b as fibers such as paper. Meanwhile, the gypsum powder separated by passing through the sieve hole of the second sieve 4 falls into the funnel body 6 and is sent to the discharge port 6a by the rotary spiral 7 together with the gypsum powder dropped from the first sieve 3, It is discharged into the container 9 as gypsum powder suitable for recycling.

[0019]

According to the gypsum board crushing and sorting apparatus of the present invention, a pair of horizontal crushing rolls for compressing a gypsum board from both sides are spirally planted on a peripheral surface at a predetermined interval from one end to the other end. A pair of horizontal separation rolls for crushing the gypsum board from both sides, and separation means for separating the crushed material of the gypsum board into paper and crushed gypsum. The gypsum board is sent out toward the separation roll, and the separation roll is configured to send out the crushed material toward the separation means. Thus, the generation of dust is far less, and even if the wet waste gypsum board is treated, no trouble occurs in the pulverizing operation. And since the whole process can be carried out by one device which is assembled compactly, the device can be easily moved and the pulverization / separation treatment can be performed flexibly at the place where waste gypsum board is generated. There is. Further, the recovered gypsum powder has an advantage that the content of the fine powder is low and the gypsum powder can be used without limitation in various applications.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view in a plane perpendicular to a roll axis of an example of a gypsum board crushing and sorting apparatus of the present invention.

FIG. 2 shows an example of the gypsum board crushing and sorting apparatus of the present invention.
FIG. 2 is a cross-sectional view of a cross section at an intermediate position of the roll in FIG. 1 as viewed from the left.

[Explanation of symbols]

 A Gypsum board 1a, 1b Crush roll 2a, 2b Separation roll 21 Pin 3 First sieve 3a Drop outlet 4 Second sieve 4a Shield 4b Discharge port 5 Rotating spiral 6 Funnel 6a Discharge port 7 Rotating spiral 8, 9 Container

Claims (4)

[Claims] 1. A pair of crushing rolls for compressing a gypsum board from both sides, and a pin spirally implanted on a peripheral surface at a predetermined interval from one end to the other end. A pair of separation rolls to be crushed, and separation means for separating the crushed material of the gypsum board into paper and crushed gypsum, the crushing roll sends the gypsum board toward the separation roll, and the separation roll is A gypsum board crushing and separating apparatus, wherein the crushed material is sent out toward the separating means. 2. The pair of separation rolls are arranged in parallel so that the arrangement direction of the helically implanted pins is symmetric with respect to each other, and the pins are not in contact with each other when rotated at a constant speed in the opposite direction. The gypsum board crushing and sorting apparatus according to claim 1, which is combined. 3. The gypsum board crushing and sorting apparatus according to claim 1, wherein the pair of separation rolls are provided below the pair of crushing rolls. 4. The gutter-shaped first sieve for receiving all of the crushed material, and a gutter-shaped second sieve provided below the first sieve and having a shield on an upper side thereof. A rotary helix provided on the second sieve for transferring material on the second sieve along an axis; a funnel provided below the first and second sieves The crushed material received by the first sieve is sent to the end on the first sieve in a direction parallel to the axis of the separation roll by rotation of the pin, and the second The gypsum board crushing and sorting apparatus according to any one of claims 1 to 3, wherein the apparatus is configured to drop on one end of the sieve and be sent in the other direction.