JP3803337B2 - Gypsum board crusher - Google Patents

Description

  The present invention relates to a gypsum board crusher, and more particularly to a gypsum board crusher described in the following (1) to (6).

(1) The gypsum board introduced from the hopper at the upper part of the hopper chamber is crushed using a biaxial crusher mounted at the lower part of the hopper chamber to form primary crushed debris, and the primary crushed debris is converted into a bucket type belt conveyor. To the secondary crushing chamber, and in the secondary crushing chamber, the primary crushing waste is crushed using a high-speed rotating hammer having a blade-shaped crushing blade having a flat portion between adjacent triangular blades. In the secondary crushing chamber, the secondary crushing waste is removed by a biaxial peeling machine in which two rollers made of soft materials are adjacent to each other in the rotation direction opposite to each other. Glue and slide between the two rollers to peel the paper stuck to the gypsum board, and make up the third crushing waste consisting of gypsum fine powder and paper waste, mixed gypsum fine powder and By separating and separating paper waste and passing only gypsum fine powder The above-mentioned tertiary crushing waste is transported by a belt conveyor to a mesh-shaped sorting trommel that has an air blower for preventing dust formation on the upper surface, and the sorting trommel is rotated in the sorting trommel. The third crushing waste is separated and separated into gypsum fine powder and paper waste, and the gypsum fine powder falling through the mesh of the sorting trommel is placed in a baking trommel whose inner wall is made of refractory. The gypsum fine powder is uniformly fired by blowing hot air with a blower in the baking trommel and rotating the baking trommel to form a dry gypsum fine powder. The dry gypsum fine powder It is characterized in that it is carried by a bucket type belt conveyor and collected in a collecting device consisting of a silo, a cyclone and a bag filter, and dry gypsum fine powder is obtained as a final product. Gypsum board crusher that.

(2) A first conveyor chamber for storing a bucket-type belt conveyor adjacent to the hopper chamber and a second conveyor chamber for storing a bucket-type belt conveyor connected to the end of the baking trommel are connected by a blower pipe. The gypsum board crusher according to (1), wherein a screen having a blower and a plurality of small holes is provided at a connecting portion between the first conveyor chamber and the blower pipe.

(3) A crushing blade having a flat portion between adjacent triangular blades that crushes the primary crushing waste of gypsum board crushed by a biaxial crusher or the like into secondary crushing waste of fine powder. A gypsum board crusher characterized by using a high-speed rotating hammer.

(4) The above-mentioned secondary crushing waste of the gypsum board was sandwiched, and surfaces with different rotation directions and different rotation speeds were adhered to the gypsum board by sliding between two soft rollers. A gypsum board crusher using a biaxial peeling machine for peeling paper.

(5) A mesh-shaped sorting trommel formed by a mesh that selectively separates gypsum fine powder and paper waste in a mixed state and allows only gypsum fine powder to pass through, and is equipped with an air blowing device for preventing dust formation above. A gypsum board crusher characterized by being used.

(6) It is characterized by using a baking trommel whose inner wall surface is made of a refractory, wherein gypsum fine powder is uniformly fired by blowing hot air with a blower and rotating the main body to obtain a dry gypsum fine powder. Gypsum board crusher.

  In the conventional gypsum board crusher, the gypsum board thrown in from the hopper is crushed by crushing means such as a biaxial crusher to make a piece or a fine powder, but the paper stuck on the gypsum board is peeled off It was not discharged. For this reason, the paper remains attached to the gypsum strips and the gypsum fine powder, it is difficult to recycle, and it has only been abandoned as industrial waste.

  For this reason, the crushing-separation apparatus shown in the following patent documents 1, 2, and 3 was provided. As a result, the gypsum part and the paper were separated to some extent, and the gypsum fine powder and the paper could be collected separately.

  However, since the degree of separation is incomplete and the recovered gypsum fine powder contains a certain amount of water, the gypsum fine powder is further calcined to be recycled and used as gypsum powder. The water had to be drained to dry gypsum powder.

JP 2001-62439 A JP 2001-113259 A JP 2001-239178 A

  The problems to be solved are the following two points. That is, in the first crushing waste in a state where the paper is attached to the gypsum fine piece or the gypsum fine powder, which is crushed by a crushing means such as a biaxial crusher, the paper is completely removed from the gypsum fine piece or the gypsum fine powder. It is a point to make it peel.

  Secondly, the gypsum fine pieces or gypsum fine powder from which the paper has been peeled are further crushed into fine powders to form gypsum fine powder, and the gypsum fine powder is dehydrated to form dry gypsum fine powder, which is recycled as it is. The point is to obtain a dry gypsum fine powder.

  The present invention provides solving means described in the following (A) to (F) as means for solving the above problems.

(A) The gypsum board put in from the hopper at the upper part of the hopper chamber is crushed using a biaxial crusher mounted at the lower part of the hopper chamber to form primary crushed waste, and the primary crushed waste is converted into a bucket type belt conveyor. To the secondary crushing chamber, and in the secondary crushing chamber, the primary crushing waste is crushed using a high-speed rotating hammer having a blade-shaped crushing blade having a flat portion between adjacent triangular blades. In the secondary crushing chamber, the secondary crushing waste is removed by a biaxial peeling machine in which two rollers made of soft materials are adjacent to each other in the rotation direction opposite to each other. Glue and slide between the two rollers to peel the paper stuck to the gypsum board, and make up the third crushing waste consisting of gypsum fine powder and paper waste, mixed gypsum fine powder and By separating and separating paper waste and passing only gypsum fine powder The above-mentioned tertiary crushing waste is transported by a belt conveyor to a mesh-shaped sorting trommel that has an air blower for preventing dust formation on the upper surface, and the sorting trommel is rotated in the sorting trommel. The third crushing waste is separated and separated into gypsum fine powder and paper waste, and the gypsum fine powder falling through the mesh of the sorting trommel is placed in a baking trommel whose inner wall is made of refractory. The gypsum fine powder is uniformly fired by blowing hot air with a blower in the baking trommel and rotating the baking trommel to form a dry gypsum fine powder. The dry gypsum fine powder It is characterized in that it is carried by a bucket type belt conveyor and collected in a collecting device consisting of a silo, a cyclone and a bag filter, and dry gypsum fine powder is obtained as a final product. Gypsum board crusher that.

(B) A first conveyor chamber for storing a bucket-type belt conveyor adjacent to the hopper chamber and a second conveyor chamber for storing a bucket-type belt conveyor connected to the end of the baking trommel are connected by a blower pipe. The gypsum board crusher according to (A), wherein a screen having a blower and a plurality of small holes is provided at a connecting portion between the first conveyor chamber and the blower pipe.

(C) A blade-shaped crushing blade having a flat portion between adjacent triangular blades, which further crushes the primary crushing waste of the gypsum board crushed by a biaxial crusher or the like into the secondary crushing waste of fine powder. A gypsum board crusher characterized by using a high-speed rotating hammer.

(D) The above-mentioned secondary crushing waste of the gypsum board was sandwiched, and the surfaces with different rotation directions and different rotation speeds were adhered to the gypsum board by sliding between two rollers made of soft material. A gypsum board crusher using a biaxial peeling machine for peeling paper.

(E) A mesh-shaped sorting trommel formed by a mesh that selectively separates gypsum fine powder and paper waste in a mixed state and allows only gypsum fine powder to pass through, and is equipped with an air blowing device for preventing dust formation above. A gypsum board crusher characterized by being used.

(F) It is characterized by using a trommel for firing whose inner wall surface is made of refractory, wherein the gypsum fine powder is uniformly fired by blowing hot air with a blower and rotating the main body to obtain a dry gypsum fine powder. Gypsum board crusher.

  According to the present invention, the above-mentioned solution (A) allows the paper to be completely peeled off and separated from the gypsum board, and is not a gypsum fine powder containing water as in the prior art, but dried gypsum fine particles uniformly fired. A powder can be obtained.

  As a result, the obtained dry gypsum fine powder can be applied to various fields as it is as a recycled material.

  For example, by mixing the dry gypsum fine powder with construction sludge to solidify the construction sludge, it became possible to easily dispose of construction sludge that was difficult to dispose of as it is.

  In addition, it is expected that the above dry gypsum fine powder is widely used in the field of soil improvement, in which soil moisture is reduced by spreading the dry gypsum fine powder to soil with much moisture.

  Furthermore, in the land with much snow, since the soil contains moisture in the snow, dehydration of the moisture from the soil has been a major problem in improving the soil. This problem can be overcome by spreading it over wet soil.

The present invention provides a bucket type belt conveyor adjacent to the hopper chamber by hot air accumulated in the second conveyor chamber storing the bucket type belt conveyor connected to the end of the firing trommel by the solution (B). The primary crushing waste of the gypsum board that can be transferred to the first conveyor chamber to be stored and transferred from the hopper chamber to the secondary crushing chamber through the bucket belt conveyor of the first conveyor chamber is used for the secondary crushing chamber and sorting. It became possible to dry to some extent before it was transported to Trommel.

As a result, crushing with a high-speed rotating hammer in the secondary crushing chamber and peeling of the paper affixed to the gypsum board with a biaxial peeling machine can be performed more smoothly.

Also, in the action of the sorting trommel that separates and separates the tertiary crushing waste composed of gypsum fine powder and paper waste into gypsum fine powder and paper waste, the sorting crushing process is smooth because the tertiary crushing waste is in a state of being dried to some extent. And the sorting efficiency was greatly increased.

Furthermore, even in the action of the baking trommel for baking the selected gypsum fine powder, since the gypsum fine powder conveyed to the baking trommel is in a state of being dried to some extent, the drying process is greatly improved, This greatly contributed to the saving of heat energy required for drying.

In addition, since the hot air generated in the drying process in the trommel for firing is reused, the amount of waste heat exhausted from the entire device can be greatly reduced, which is also a very favorable effect from the viewpoint of resource protection and environmental protection. Give.

The blower in the solution (B) has a great effect on the increase in the efficiency of conveying hot air in the process of conveying the hot air accumulated in the second conveyor chamber to the first conveyor chamber.

In the solution (B), the screen having a plurality of small holes is hot air conveyed from the second conveyor chamber in the process of conveying the hot air accumulated in the second conveyor chamber to the first conveyor chamber. This has the effect of removing the dust contained in the water.

With the high-speed rotating hammer in the solution (C), it is possible to efficiently crush the primary crushing waste crushed by the biaxial crusher in the previous stage into secondary crushing waste. That is, the high-speed rotating hammer is provided with a blade-type crushing blade having a flat portion between adjacent triangular blades, and the action of the crushing blade causes the primary crushing debris to spring and jump in all directions. It became possible to crush evenly and uniformly.

With the biaxial peeling machine in the solution (D), it was possible to completely peel the paper stuck to the secondary crushing waste. That is, the biaxial peeling machine is attached to the gypsum board by sandwiching the secondary crushing waste and sliding the surfaces with different rotation directions and different rotation speeds between two rollers made of soft material. It has the effect of peeling off the paper, and since the roller is made of a soft material, it is possible to completely peel off the paper that has been stuck to the secondary shredder as a result of being completely sandwiched. It became.

By the sorting trommel in the above solution (E), the third crushing waste in a state where the gypsum fine powder and paper waste are mixed is completely sorted and separated, and only the gypsum fine powder is attached to the lower part of the sorting trommel. It can be dropped on the belt conveyor.

That is, the sorting trommel is composed of a mesh material having a mesh larger than the gypsum fine powder but smaller than the paper waste, so that the tertiary in a state where the gypsum fine powder and paper waste are mixed. It was possible to completely sort and separate the crushed debris and drop only the gypsum fine powder onto the belt conveyor attached to the lower part of the sorting trommel.

An air jetting device for preventing dust formation is mounted on the top of the sorting trommel, and the mesh of the sorting trommel is clogged by the air jetted from the air jetting device to the upper surface of the sorting trommel. This makes it possible to always select gypsum fine powder and paper waste in an optimal state.

The air blowing device is mounted on the upper part of the sorting trommel with a length substantially the same as the longitudinal extension of the sorting trommel, and the sorting trommel always rotates at a constant speed in its operating state. Therefore, the air ejected from the air ejecting device is uniformly ejected over the entire mesh of the sorting trommel, and the sorting trommel always sorts the gypsum fine particles and paper waste in an optimum state. It became possible.

The gypsum fine powder was uniformly fired by the baking trommel in the solution (F), and it became possible to obtain dry gypsum fine powder. That is, the above-mentioned calcined trommel can be made into a dry gypsum fine powder by uniformly firing the gypsum fine powder by blowing hot air with a burner and rotating the main body.

  The best mode for carrying out the gypsum board crusher of the present invention will be described in detail with reference to the accompanying drawings.

  The overall configuration of the gypsum board crusher of Example 1 will be described with reference to the conceptual diagram of FIG. 1 is a gypsum board crusher of the present invention. A hopper chamber HR that also serves as a primary crushing chamber is attached to the lower portion of the first conveyor chamber R1 that is suspended. The upper portion of the hopper chamber HR is a hopper H, and the lower portion of the hopper H is a biaxial crusher 2 that is a hopper. It is pivotally mounted in the chamber HR.

Further, the lower part of the hopper chamber HR and the lower part of the first conveyor chamber R1 are connected to be freely permeable, and a bucket type conveyor 3 is suspended in the first conveyor chamber R1.

  A secondary crushing chamber T is connected to the upper portion of the first conveyor chamber R1 so as to be freely ventilated, and a high-speed rotating hammer 4 is pivotally mounted in the secondary crushing chamber T. A biaxial stripper 5 is attached to the lower side of the high-speed rotating hammer 4 in the first conveyor chamber R1.

  A sorting trommel 6 is provided horizontally at the lowermost part of the secondary crushing chamber T, and the extreme end 6a of the sorting trommel 6 is connected to the lower part of the secondary crushing chamber T so as to be freely ventilated. Below the biaxial stripper 5, a belt conveyor b1 is installed horizontally so that its end b1a is inserted into the end 6a of the sorting trommel 6.

  On the upper portion of the sorting trommel 6, an air ejection device 61 having a length substantially the same as the longitudinal extension of the sorting trommel 6 is mounted. Further, a paper waste collecting chamber P is connected to the extreme end 6b of the sorting trommel 6 so as to be freely permeable, and a paper waste collecting hole h1 is formed in the lower portion of the paper waste collecting chamber P.

  A filter chamber fa is connected to the paper waste collection chamber P, and a plurality of bag filters f1, f1,... Are installed in the filter chamber fa so as to be freely permeable to the paper waste collection chamber P. In addition, an exhaust fan F3 is mounted below the paper waste collection chamber P with the exhaust hole F3a facing outward.

  A conveyor room R3 is connected to the lower part of the sorting trommel 6 and a belt conveyor b2 is provided in the lower part of the conveyor room R3. The end b2a of the belt conveyor b2 is the end R3a of the conveyor room R3. It is inserted into the extreme end 7a of the firing trommel 7 connected in a breathable manner.

The lower end of the second conveyor chamber R2 is suspended from the end 7b of the firing trommel 7 so as to be permeable to the firing trommel 7, and a bucket conveyor 8 is suspended in the second conveyor chamber R2. .

A refractory 71 is adhered to the entire inner surface of the firing trommel 7. Further, a blower F1 for supplying hot air from a heat source (not shown) is mounted below the end 7a of the firing trommel 7 with the blower hole F1a facing the firing trommel 7.

  A duct D1 is connected to the second conveyor chamber R2 in a freely ventilated manner at the upper end of the second conveyor chamber R2, and an end D1a of the duct D1 is connected to an upper portion of the silo S1 in a freely ventilated manner. A collection hole h2 is formed at the lower end of the silo S1.

  The upper end portion of the silo S1 is connected to the upper portion of the cyclone S2 through a duct D2 so as to be freely permeable. The lower end of the cyclone S2 is a collection hole h3.

  The upper end portion of the cyclone S2 is connected to the upper portion of the cyclone S3 through a duct D3 so as to be freely permeable. Further, the lower end portion of the cyclone S3 is a collection hole h4.

  The upper end of the cyclone S3 is connected to a plurality of bag filters f2, f2,... Further, the plurality of bag filters f2, f2,... Are housed in the filter chamber fb, and an exhaust fan F4 is mounted on the lower portion of the filter chamber fb with the exhaust port F4a facing outward.

  The second conveyor chamber R2 and the first conveyor chamber R1 are connected to each other through a pipe 9, a blower F2, a blower chamber 91, and a screen 92 so as to be freely ventilated. The end 9a of the pipe 9 is connected to the middle part of the second conveyor chamber R2 in a slightly ventilated manner, the end 9b of the pipe 9 is connected to the blower F2 in a freely ventilated manner, and the blower F2 is connected to the first conveyor chamber R1. A blower opening F2a is opened in a blower chamber 91 that is connected to the air through a screen 92. The screen 92 is a plate-like body having small holes.

  Next, regarding the gypsum board crusher 1 of Example 1, each member which comprises the whole is demonstrated in detail, referring drawings. However, in the description of the overall configuration described above, the description of the members whose description has been exhausted is omitted as appropriate.

  2 and 3, the configuration of the biaxial crusher 2 located immediately below the hopper H (see FIG. 1) will be described in detail. The biaxial crusher 2 is comprised from the roller 21 and the roller 22 which adjoin, as shown in FIG. 2, FIG.

  The roller 21 and the roller 22 have the same shape and the same size. The roller 21 has a shaft 21b penetratingly fixed to the center of a cylindrical body 21a made of metal or resin. The shaft 21b is longer than the body 21a, and the rear end of the shaft 21b is slightly larger than the diameter of the body 21a. A gear 21c having a large diameter is fixed.

  Triangular blades 21d, 21e, 21f, and 21g are projected and fixed on the surface of the main body 21a of the roller 21. The triangular blade 21d is formed by projecting and fixing isosceles triangular plate-shaped small blades 21h, 21h... Continuously in the longitudinal direction of the surface of the main body 21a of the roller 21, and the triangular blades 21e, 21f, 21g has the same configuration.

  As shown in FIG. 2, the triangular blades 21 d, 21 e, 21 f, and 21 g are protruded and fixed to the surface of the main body 21 a of the roller 21 at intervals of 90 ° in the circumferential direction.

The triangular blade 21d is protruded and fixed so that the front end α comes rearward from the front surface of the main body 21a by a distance e and the rear end β comes frontward from the rear surface of the main body 21a by the distance e. The distance e is half of the length d of the base of the small blade 21h. The same applies to the triangular blade 21f.

  The triangular blade 21e is protruded and fixed so that the front end γ coincides with the front surface of the main body 21a and the rear end δ coincides with the back surface of the main body 21a. The same applies to the triangular blade 21g.

  The roller 22 has a shaft 22b penetratingly fixed to the center of a cylindrical body 22a made of metal or resin. The shaft 22b is longer than the body 22a, and the rear end of the shaft 22b is slightly larger than the diameter of the body 22a. A gear 22c having a large diameter is fixed. The gear 22c has the same shape and the same size as the gear 21c of the roller 21, and has the same number of teeth.

  Triangular blades 22d, 22e, 22f, and 22g are projected and fixed on the surface of the main body 22a of the roller 22. The triangular blade 22d is formed by projecting and fixing isosceles triangular plate-shaped small blades 22h, 22h... In the longitudinal direction of the surface of the main body 22a of the roller 22, and the triangular blades 22e, 22f, 22g has the same configuration. The small blade 22h has the same shape and the same size as the small blade 21h of the roller 21.

  As shown in FIG. 2, the triangular blades 22 d, 22 e, 22 f, and 22 g are protruded and fixed to the surface of the main body 22 a of the roller 22 at 90 ° intervals in the circumferential direction.

  The triangular blade 22d is projected and fixed so that the front end ε coincides with the front surface of the main body 22a and the rear end ζ coincides with the back surface of the main body 22a. The same applies to the triangular blade 22f.

The triangular blade 22g is projected and fixed so that the front end η is behind the distance e from the front of the main body 22a and the rear end θ is ahead from the back of the main body 22a by the distance e. The distance e is a half of the length d of the base of the blade 22h. The same applies to the triangular blade 22e.

  The roller 21 and the roller 22 are arranged such that the triangular blade 21d of the roller 21 and the triangular blade 22d of the roller 22 are arranged on the same plane with a slight distance r1, and the gear 21c and the gear 22c are engaged with each other. It is connected to. Thereby, the angular velocities of the gear 21c and the gear 22c are equal, and the rotation directions are opposite.

The shaft 21b and the shaft 22b are rotatably mounted on the back surface (not shown) of the hopper chamber HR (see FIG. 1). The shaft 21b is rotated counterclockwise and the shaft 22b is rotated clockwise by a power source (not shown). It is rotated at an angular speed of. Therefore, the roller 21 is rotated counterclockwise and the roller 22 is rotated clockwise at the same angular velocity.

4, 5, and 6, the configuration of the high-speed rotary hammer 4 positioned at the upper part of the secondary crushing chamber T (see FIG. 1) will be described in detail. As shown in FIGS. 4, 5, and 6, the high-speed rotating hammer 4 includes a roller 41, a shaft 42, and crushing blades 43, 44, 45, and 46.

  The main body 41a of the roller 41 has a cylindrical shape made of metal or resin, and is rotatably mounted on the back surface (not shown) of the secondary crushing chamber T (see FIG. 1), and is longer than the main body 41a of the roller 41 at the center. The shaft 42 is fixed through. The shaft 42 is rotated at a constant angular velocity by a power source (not shown). Therefore, the main body 41a of the roller 41 is also rotated at a constant angular velocity.

  Crushing blades 43, 44, 45, 46 are fixed to the surface of the main body 41 a of the roller 41 so as to protrude in parallel with the longitudinal direction of the main body 41 a of the roller 41 at intervals of 90 ° in the circumferential direction.

  Since the crushing blades 43, 44, 45, and 46 have the same shape and the same size, the blade shape of the crushing blade 43 will be described in detail with reference to FIGS. 43B is a rectangular base portion, and isosceles triangular small blades 43a, 43b, 43c, 43d,... Are protruded integrally with the base portion 43B with a fixed gap g.

  The gap g is substantially equal to or slightly smaller than the length f of the bottom side of the small blade 43a. The small blades 43a, 43b, 43c, 43d... Have the same shape and dimensions.

  9 and 10, the configuration of the biaxial peeling machine 5 located below the high-speed rotating hammer 4 in the secondary crushing chamber T (see FIG. 1) will be described in detail. The biaxial peeling machine 5 is comprised from the roller 51 and the roller 52 which adjoin, as shown in FIG. 9, FIG.

  The roller 51 has a shaft 51b penetratingly fixed to the center of a cylindrical main body 51a made of a soft resin or rubber having a high surface friction coefficient. The shaft 51b is longer than the main body 51a of the roller 51 and is located behind the shaft 51b. A gear 51c having a diameter slightly larger than the diameter of the main body 51a of the roller 51 is fixed to the end portion.

The roller 52 has a shaft 52b penetratingly fixed to the center of a cylindrical main body 52a made of a soft resin or rubber having a high surface friction coefficient. The shaft 52b is longer than the main body 52a of the roller 52 and is located behind the shaft 52b. A gear 52c having the same diameter and the same number of teeth as the gear 51c of the roller 51 is fixed to the end portion.

  The diameter φ1 of the main body 51a of the roller 51 is set to be slightly smaller than the diameter of the gear 51c. The diameter φ2 of the main body 52a of the roller 52 is set to be slightly smaller than the diameter φ1 of the main body 51a of the roller 51. Therefore, φ1> φ2.

The roller 51 and the roller 52 are connected so that the surface 51as of the main body 51a of the roller 51 and the surface 52as of the main body 52a of the roller 52 are separated by a slight distance ΔS, and the gear 51c and the gear 52c are engaged. . The distance ΔS is set to be slightly smaller than the thickness Bd (see FIGS. 11 and 12) of the gypsum board B (see FIG. 1).

The shaft 51b and the shaft 52b are rotatably mounted on the back surface (not shown) of the hopper chamber HR (see FIG. 1), and the shaft 51b is rotated counterclockwise and the shaft 52b is rotated clockwise by a power source (not shown). It is rotated at an angular speed of. That is, since the gear 51c and the gear 52c have the same diameter and the same number of teeth, the angular velocities are equal and the rotation directions are opposite. Therefore, the angular velocity ρ1 of the main body 51a of the roller 51 and the angular velocity ρ2 of the main body 52a of the roller 52 are opposite in direction and equal in value.

However, the linear velocity v1 at the point P1 of the surface 51as of the main body 51a of the roller 51 and the linear velocity v2 (see FIG. 9) at the point P2 of the surface 52as of the main body 52a of the roller 52 are such that the diameter φ1 of the main body 51a is the diameter of the main body 52a. Since it is larger than φ2, v1> v2. Note that the linear velocity v1 at the point P1 and the linear velocity v2 at the point P2 both work downward.

13 and 14, the configuration of the sorting trommel 6 that is connected to the lower part of the secondary crushing chamber T and the lower part of the secondary crushing chamber T (see FIG. 1) in a freely ventilated manner will be described in detail.

  The sorting trommel 6 has a cylindrical shape with open ends, and the main body 6c is made of a metal mesh M. The mesh size of the mesh M is configured to be larger than the gypsum fine powder C3a constituting the tertiary crushing waste C3 and smaller than the paper piece C3b.

  In the sorting trommel 6, the belt conveyor b <b> 1 is horizontally provided so that the end b <b> 1 a is inserted into the end 6 a of the sorting trommel 6. The sorting trommel 6 is rotated by a driving device (not shown).

On the upper portion of the sorting trommel 6, an air ejection device 61 having a length substantially the same as the longitudinal extension of the sorting trommel 6 is mounted. The air ejection device 61 has a substantially rectangular parallelepiped shape, and a plurality of small holes 61b, 61b, 61b,.

On the upper part of the air ejection device 61, a duct 61 c is projected so as to be able to ventilate the inside of the air ejection device 61. The duct 61c is connected to a compressor (not shown), and compressed air is pumped from the compressor into the air ejection device 61 through the duct 61c.

In FIG. 15, the configuration of the firing trommel 7 connected to the end R3a (see FIG. 1) of the conveyor chamber R3 so as to be freely permeable will be described in detail.

  The firing trommel 7 has a cylindrical shape with open ends, the main body 7c is made of metal or refractory, and a refractory 71 is attached to the entire surface of the main body 7c.

In the baking trommel 7, the belt conveyor b <b> 2 is horizontally provided so that the end b <b> 2 a is inserted into the end 7 a of the baking trommel 7. The firing trommel 7 is rotated by a driving device (not shown).

  A blower F1 is mounted below the extreme end b2a of the belt conveyor b2 inserted into the extreme end 7a of the firing trommel 7 with the blower opening F1a facing the inside of the firing trommel 7. Heat is supplied to the blower F1 from a heat source (not shown), and hot air W2 is supplied into the firing trommel 7 from the blower opening F1a.

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

  As shown in FIG. 1, the gypsum board B introduced vertically from the hopper H has triangular blades 21d, 21e, 21f, 21g of the roller 21 of the biaxial crusher 2 and triangular blades 22d, 22e, 22f of the roller 22. It is sandwiched between 22 g (see FIG. 2) and crushed into primary crushed debris C1.

  The primary crushing waste C1 is transported upward by the bucket conveyor 3 suspended in the first conveyor chamber R1 and put into the secondary crushing chamber T. (See Figure 1)

  As shown in FIG. 1, the primary crushing waste C1 thrown into the secondary crushing chamber T is crushed by the high-speed rotating hammer 4 to become secondary crushing waste C2.

  Below, the effect | action of the high-speed rotation hammer 4 is demonstrated in detail. As shown in FIGS. 5 and 6, the crushing blade 43 of the high-speed rotating hammer 4 is provided between adjacent blades (for example, between the blades 43 a and 43 b or between the blades 43 b and 43 c). Since the gap g is provided, as shown in FIG. 7, it is possible to make the primary crushing debris C <b> 1 bullet jump in all directions and to uniformly crush it.

  V1 to V6 in FIG. 7 indicate the trajectory of the primary crushing waste C1. The trajectory V1 bounces in the space 433 formed by the small blade 43c and the small blade 43d (see FIG. 5), and the trajectories V4, V5, and V6 spring in the 432 formed by the space small blade 43b and the small blade 43c. Jump. As described above, there is a trajectory for projecting and projecting a beam in a relatively narrow range. However, there is a trajectory for projecting a projectile beam from the space 432 to the space 433 as in the trajectory V2, or in the spaces 433 and 432, as in the trajectory V3. In some cases, a space 431 formed by the small blade 43a (see FIG. 5) and the small blade 43b and a wide range are to be used as a bullet jumping beam.

  On the other hand, the case where there is no gap g is shown in FIG. In the case of the triangular blade 44 in which the small blades 44a, 44b, 44c, 44d, and 44e are connected without a gap as shown in FIG. 8, the range in which the trajectory W1, W2, W3, and W4 is a bullet jumping beam is relatively narrow. It is extremely rare that the space 441, 442, 443, 444,...

  As described above, the crushing blade 43 of the high speed rotating hammer 4 is provided with the gap g, so that a bullet jumping beam over a wide range of the primary crushing waste C1 becomes possible. Are entangled between the crushing blades 43, 44, 45, and 46 for a relatively long time and have a long flight distance, so that the crushing blades 43, 44, 45, and 46 and the side wall T1 of the secondary crushing chamber T (see FIG. 7) Violently collides with each other, is sufficiently crushed, and evenly and uniformly crushed into secondary crushing waste C2 (see FIG. 1).

  The secondary crushing waste C2 that has been sufficiently crushed by the high-speed rotating hammer 4 and formed into a strip shape falls onto the biaxial peeling machine 5 as seen in FIG.

Below, the effect | action of the biaxial stripper 5 is demonstrated in detail. As shown in FIG. 11, the secondary crushing waste C <b> 2 is attached between the surface 51 as of the main body 51 a of the roller 51 and the surface 52 as of the main body 52 a of the roller 52. At this time, FIG. 11 shows a state in which the gypsum board body B1 comes to the roller 51 side and the paper B2 stuck to the gypsum board body B1 comes to the roller 52 side.

  The surface 51as of the main body 51a of the roller 51 and the surface 52as of the main body 52a of the roller 52 are separated by a distance ΔS, which is the thickness Bd (see FIG. 11) of the gypsum board B (see FIG. 1), that is, 2 Since it is slightly smaller than the thickness Bd of the next crushing waste C2, the gypsum board of the secondary crushing waste C2 sandwiched between the surface 51as of the main body 51a of the roller 51 and the surface 52as of the main body 52a of the roller 52 The main body B1 is crushed by the pressure of the main body 51a of the roller 51 and the main body 52a of the roller 52 to become gypsum fine powder C3a.

  Further, the paper B2 is peeled from the gypsum board body B1 by being sandwiched between the surface 51as of the main body 51a of the roller 51 and the surface 52as of the main body 52a of the roller 52.

  As shown in FIG. 11, the angular velocity ρ1 of the main body 51a of the roller 51 and the angular velocity ρ2 of the main body 52a of the roller 52 are opposite in direction and equal in value. However, as shown in FIGS. 9 and 10, since the diameter φ1 of the main body 51a of the roller 51 is slightly larger than the diameter φ2 of the main body 52a of the roller 52, the point of the surface 51as of the main body 51a of the roller 51 in FIG. When the linear velocity v1 at P1 and the linear velocity v2 at the point P2 on the surface 52as of the main body 52a of the roller 52 are compared, v1> v2.

  Since the secondary crushing waste C2 is clamped and pinched between the points P1 and P2, the gypsum board body B1 receiving pressure at the point P1 and the paper B2 receiving pressure at the point P2 are linear velocity v1 at the point P1. The paper B2 on the side of the slower linear velocity v2 is peeled off from the gypsum board body B1 in a state of being left above the point P2 and becomes a paper piece C3b.

This paper piece C3b and the gypsum fine particle powder C3a are mixed and dropped to form tertiary crushing waste C3.

FIG. 12 shows a state in which the gypsum board body B1 comes to the roller 52 side and the paper B2 stuck to the gypsum board body B1 comes to the roller 51 side.

  Also in this case, the gypsum board body B1 of the secondary crushing waste C2 sandwiched between the surface 51as of the body 51a of the roller 51 and the surface 52as of the body 52a of the roller 52 is the same as the body 51a of the roller 51 and the roller. Crushed by the pressure of the main body 52a of 52 becomes gypsum fine powder C3a.

  Further, the paper B2 is peeled from the gypsum board body B1 by being sandwiched between the surface 51as of the main body 51a of the roller 51 and the surface 52as of the main body 52a of the roller 52.

  As shown in FIG. 12, the angular velocity ρ1 of the main body 51a of the roller 51 and the angular velocity ρ2 of the main body 52a of the roller 52 are opposite in direction and equal in value. However, as shown in FIGS. 9 and 10, the diameter φ1 of the main body 51a of the roller 51 is slightly larger than the diameter φ2 of the main body 52a of the roller 52. When the linear velocity v1 at P1 and the linear velocity v2 at the point P2 on the surface 52as of the main body 52a of the roller 52 are compared, v1> v2.

Since the secondary crushing waste C2 is clamped and pinched between the points P1 and P2, the gypsum board body B1 receiving pressure at the point P2 and the paper B2 receiving pressure at the point P1 are linear velocities at the point P1. Due to the difference between the linear velocity v2 at v1 and the point P2, the paper B2 on the faster linear velocity v1 side is peeled off from the gypsum board body B1 while being dragged down below the point P1, and the paper piece C3b It becomes.

This paper piece C3b and the gypsum fine particle powder C3a are mixed and dropped to form tertiary crushing waste C3.

The action of peeling the paper B2 from the gypsum board main body B1 is performed when the paper B1 comes to the roller 52 side (FIG. 11) or the roller 51 side (FIG. 12). Since both of the main bodies 52a of 52 are made of a soft resin or rubber having a high friction coefficient, the sliding effect is high and it is performed more completely.

The tertiary crushing waste C3 in which the paper B2 is peeled from the gypsum board main body B1 by the biaxial peeling machine 5 and mixed with the gypsum fine powder C3a and the paper piece C3b is directly below the biaxial peeling machine 5 as shown in FIG. It falls on the belt conveyor b1 installed horizontally. The tertiary crushing waste C3 is placed on the belt conveyor b1 and transported in the direction of the arrow z1, and is carried into the sorting trommel 6.

As shown in FIGS. 13 and 14, the tertiary crushing waste C <b> 3 carried into the sorting trommel 6 is rotated by the rotation of the sorting trommel 6 and the longitudinal extension of the sorting trommel 6 on the top of the sorting trommel 6. Are separated into paper waste C5 and gypsum fine powder C4 by the action of air W1 ejected from a plurality of small holes 61b, 61b, 61b... Is done.

That is, the sorting trommel 6 is composed of a mesh M having a mesh whose main body 6C is larger than the gypsum fine powder C3a but smaller than the paper piece C3b, so that the gypsum fine powder C3a and the paper piece C3b are mixed. In this state, the crushed tertiary crush C3 is completely sorted and separated, and only the gypsum fine particle powder C4 is dropped onto the belt conveyor b2 attached to the lower part of the sorting trommel 6.

An air blowing device 61 for preventing dust formation is attached to the upper portion of the sorting trommel 6, and the action of the air blowing device 61 is the air jetted from the air blowing device 61 onto the upper surface of the sorting trommel 6. Thus, clogging of the mesh M of the sorting trommel 6 is prevented, and the gypsum fine powder C4 and the paper waste C5 are always sorted in an optimum state.

The air blowing device 61 is mounted on the upper part of the sorting trommel 6 with a length substantially the same as the longitudinal extension of the sorting trommel 6, and the sorting trommel 6 always rotates at a constant speed in its operating state. Therefore, the air W1 ejected from the air ejecting device 61 is uniformly ejected over the entire surface of the mesh M of the sorting trommel 6, and the sorting trommel 6 is always in an optimum state and always in the optimum state, the gypsum fine powder C4 and the paper waste. C5 can be selected.

The paper waste C5 discharged from the extreme end 6b of the sorting trommel 6 is discharged to the outside through the paper waste collection hole h1 formed in the lower part of the paper waste collection chamber P connected to the extreme end 6b and collected (see FIG. 1). ).

Further, the dust discharged from the end 6b is filtered by a plurality of bag filters f1, f1,... In the filter chamber fa connected to the paper waste collecting chamber P, and only the air is exhausted from the exhaust fan F3. To the outside (see FIG. 1).

The gypsum fine powder C4 selected by the sorting trommel 6 falls in the conveyor chamber R3 connected to the lower portion of the sorting trommel 6 and drops and accumulates on the belt conveyor b2 horizontally provided at the lower portion of the conveyor chamber R3 ( (See FIG. 1).

The belt conveyor b2 conveys the accumulated gypsum fine powder C4 in the direction of the arrow z2 in FIG. 1 and carries it into the extreme end 7a of the firing trommel 7.

The gypsum fine particle powder C4 carried into the end 7a is carried in the direction of the arrow z3 by the hot air W2 ejected from the blower opening F1a of the blower F1 attached to the lower part of the end 7a. In the meantime, it is fired to become dry gypsum fine powder C6 and is discharged from the extreme end 7b of the firing trommel 7 (see FIGS. 1 and 15).

Since the firing trommel 7 is rotated at a constant speed by a driving source (not shown), the gypsum fine powder C4 is uniformly fired to become a dry gypsum fine powder C6.

Further, since the firing trommel 7 is lined on the entire surface with the refractory 71, the firing effect is enhanced, and the durability of the firing trommel 7 is enhanced.

As shown in FIG. 1, the dry gypsum fine powder C6 baked by the baking trommel 7 is transported upward by the bucket conveyor 8 suspended in the second conveyor chamber R2, passes through the duct D1, and passes through the silo S1. And is collected from the collection hole h2 formed in the lower end of the silo S1.

The dry gypsum fine powder C6 remaining without being collected in the silo S1 is carried into the cyclone S2 via the duct D2, and collected from the collection hole h3 at the lower end of the cyclone S2.

The dry gypsum fine powder C6 remaining without being collected in the cyclone S2 is carried into the cyclone S3 via the duct D3 and collected from the collection hole h4 at the lower end of the cyclone S3.

At this stage, all of the dry gypsum fine powder C6 is collected, and the air containing dust is guided to the bag filters f2, f2,... Stored in the filter chamber fb via the duct D4.

The air from which the dust content has been removed by the bag filters f2, f2,... Is discharged to the outside from the exhaust hole F4a of the exhaust fan F4 attached to the lower part of the filter chamber fb.

Next, the operation of the pipe 9, the blower F2, the blower chamber 91, and the screen 92 that connect the second conveyor chamber R2 and the first conveyor chamber R1 will be described (see FIG. 1).

The hot air W2 blown from the blower F1 is sent to the second conveyor chamber R2 from the extreme end 7b of the firing trommel 7, and a part thereof is guided to the first conveyor chamber R1 through the pipe 9.

At that time, the blowing efficiency is increased by the action of the blower F2 connected to the end 9b of the pipe 9, and the dust is removed by the action of the screen 92 provided between the blowing chamber 91 and the first conveyor chamber R1, Only heated air is sent into the first conveyor chamber R1.

It is a conceptual diagram which shows the whole structure of the gypsum board crusher of this invention. It is a front view of the biaxial crusher of the gypsum board crusher of this invention. It is the top view which abbreviate | omitted some biaxial crushers of the gypsum board crusher of this invention. It is a front view of the high-speed rotation hammer of the gypsum board crusher of this invention. It is the top view which abbreviate | omitted a part of high-speed rotation hammer of the gypsum board crusher of this invention. It is a general-view perspective view of the high-speed rotation hammer of the gypsum board crusher of this invention. It is explanatory drawing explaining the effect | action of the high-speed rotation hammer of the gypsum board crusher of this invention. It is explanatory drawing explaining the effect | action of the high-speed rotation hammer of the gypsum board crusher of a reference example. It is a front view of the biaxial peeling machine of the gypsum board crusher of this invention. It is the top view which abbreviate | omitted a part of biaxial peeling machine of the gypsum board crusher of this invention. It is explanatory drawing explaining an effect | action of the biaxial stripper of the gypsum board crusher of this invention. It is explanatory drawing explaining an effect | action of the biaxial stripper of the gypsum board crusher of a reference example. It is a front view of the trommel for selection of the gypsum board crusher of the present invention. It is a general-view perspective view of the trommel for selection of the gypsum board crusher of this invention. It is the front view which a part of firing trommel of the gypsum board crusher of this invention lacked.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Gypsum board crusher 2 2-axis crusher 21 Roller 21a Body 21b Shaft 21c Gear 21d Triangular blade 21e Triangular blade 21f Triangular blade 21g Triangular blade 21h Small blade 22 Roller 22a Main body 22b Shaft 22c Gear 22d Triangular blade 22e Triangular blade 22f Triangular blade 22g Triangular blade 22h Small blade 3 Bucket type conveyor 4 High-speed rotating hammer 41 Roller 42 Shaft 43 Crushing blade 431 Space 432 Space 433 Space 43B Base portion 43a Small blade 43b Small blade 43c Small blade 44 Crushing blade 45 Crushing blade 46 Crushing blade 5 Biaxial peeling machine 51 Roller 51a Main body 51as Surface 51b Shaft 51c Gear 52 Roller 52a Main body 52as Surface 52b Shaft 52c Gear 6 Sorting trommel 6a End 6b End 6c Main body 61 Air ejecting device 61a Small hole 61c Da G 7 Trommel for firing 7a End 7b End 7c Main body 71 Refractory 8 Bucket type conveyor 9 Pipe 91 Air blow chamber 92 Screen B Gypsum board B1 Gypsum board main body B2 Paper Bd Thickness C1 Primary shredding C2 Secondary shredding C3 Crush waste C3a Gypsum fine powder C3b Paper piece C4 Gypsum fine powder C5 Paper waste C6 Dry gypsum fine powder D1 Duct D1a Edge D2 Duct D3 Duct D4 Duct F1 Blower F1a Blower F2 Blower F3 Blower F4a Blower F4 Air exhaust hole H Hopper M Mesh P Waste paper collection chamber P1 Point P2 Point S1 Silo S2 Cyclone S3 Cyclone T Secondary crushing chamber T1 Side wall R1 First conveyor chamber R2 Second conveyor chamber R3 Conveyor chamber R3a Extreme end V1 Trajectory V2 Trajectory V3 Trajectory V4 Trajectory V5 Trajectory V6 Trajectory W1 Air W2 Hot air b1 Beltco Bare b1a End-to-end b2 Belt conveyor b2a End-to-end d Distance e Distance f Bottom f1 Bag filter f2 Bag filter fa Filter chamber fb Filter chamber g Gap h1 Paper waste collection hole h2 Collection hole h3 Collection hole h4 Collection hole r1 Distance v1 Linear velocity v2 Line Speed z1 Arrow z2 Arrow z3 Arrow ΔS Distance α Front end β Rear end γ Front end δ Rear end ε Front end ζ Rear end η Front end θ Rear end φ1 Diameter φ2 Diameter ρ1 Angular velocity ρ2 Angular velocity

Claims (2)

  The gypsum board loaded from the hopper at the top of the hopper chamber is crushed using a biaxial crusher mounted at the bottom of the hopper chamber to form primary crushed debris. The primary shredder is transported to a secondary crushing chamber, and in the secondary crushing chamber, the primary shredder is crushed using a high-speed rotating hammer having a blade-shaped crushing blade having a flat portion between adjacent triangular blades. In the secondary crushing chamber, the secondary crushing waste is adhered to the secondary crushing chamber by a two-axis peeling machine in which two rollers made of soft material are adjacent to each other in the rotational direction opposite to each other. By sliding between the two rollers, the paper affixed to the gypsum board is peeled off to form tertiary crushing waste consisting of gypsum fine powder and paper waste, and the mixed gypsum fine powder and paper waste are sorted. Formed by a mesh that separates and passes only gypsum fines powder The above-mentioned tertiary crushed waste is transported by a belt conveyor to a mesh-shaped sorting trommel having an air blowing device for preventing dust formation on the upper surface, and the sorting trommel is rotated in the sorting trommel. The above-mentioned tertiary crushing waste is separated and separated into gypsum fine powder and paper waste, and the gypsum fine powder falling through the mesh of the sorting trommel is placed on a belt conveyor in a firing trommel having an inner wall made of refractory. The gypsum fine powder is uniformly fired by blowing hot air into the firing trommel with a blower and rotating the firing trommel to form dry gypsum fine powder, and the dried gypsum fine powder is bucketed A stone that is transported to a collection device consisting of a silo, cyclone, and bag filter on a belt conveyor and collected to obtain dry gypsum fine powder as the final product Board crusher.   A first conveyor chamber for storing a bucket-type belt conveyor adjacent to the hopper chamber and a second conveyor chamber for storing a bucket-type belt conveyor connected to the end of the firing trommel are connected by a blow pipe, and the first The plasterboard crusher according to claim 1, wherein a screen having a blower and a plurality of small holes is provided at a connecting portion between one conveyor chamber and the blower pipe.