JP2003265977A - Waste crushing equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To save manpower necessary for coarsely crushing foreign matter charged in a main crusher. <P>SOLUTION: A pit 3 for charging waste 1 is provided in a stock yard 2 where the waste 1 is once collected. The upstream side end part of a raw material feed conveyer 4 in the carrying direction is arranged on the bottom part of the pit 3 and the downstream side end part of the conveyor 4 is connected to a feed hopper 6 of the main crusher 5. A coarsely crushing uniaxial crusher 23 is provided in the preceding stage of the main crusher 5 and a discharge port 22 of the coarsely crushing uniaxial crusher 23 and the pit 3 are connected to each other with a coarsely crushed material discharge conveyer 24. The foreign matter incorporated in the waste and carried in is sorted and charged to the coarsely crushing uniaxial crusher 23 and after being coarsely crushed, fed to the main crusher 5. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste crushing treatment facility for crushing waste such as paper and plastic.

[0002]

2. Description of the Related Art When treating wastes such as paper and plastic, first, the wastes are crushed in a crushing treatment facility so that the wastes have a desired particle size, and then the particle size is made uniform. Generally, various treatments such as incineration treatment and pyrolysis gasification treatment are performed.

A waste crushing treatment facility of this type is provided with a pit 3 for inputting wastes on one side of a stock yard 2 in which wastes 1 are temporarily accumulated, as shown in FIG. The paper collected by the collection vehicle 7 or the like is configured such that the downstream end of the raw material supply conveyor 4 provided with the upstream end in the transport direction arranged at the bottom of the pit 3 is connected to the input hopper 6 of the crusher 5. Waste 1 such as plastic or plastic is carried into the stockyard 2, and the carried waste 1 is transferred to the waste input pit 3 by using the transfer means 8 such as a tractor with an excavator. 1 is conveyed by the raw material supply conveyor 4 and is thrown into the charging hopper 6 of the crusher 5, whereby the crusher 5 crushes the waste 1.

As the crusher 5 used in the waste crushing equipment, a uniaxial crusher 5 as shown in FIG. 5 is used as a crusher capable of adjusting a crushed material having a uniform crushed particle size. This is the front-back direction (direction of arrow X) on the gantry 10.
The casing 9 is installed so as to extend to the front side, the charging port 11 is opened at a position on the front side of the upper surface plate 9a of the casing 9, and the lower end of the charging hopper 6 is attached to the charging port 11 part.
Further, at a required height position in the casing 9, a base plate 21 is horizontally provided in the front-rear direction so that the front portion extends to a lower region near the central portion of the input port 11, and the front end of the base plate 21 is provided. Shaft 1 extending in the left-right direction and projecting at the axial center positions of both ends in the longitudinal direction between the portion and the front wall plate 9b of the casing 9.
4, a rotor 13 arranged so as to be rotationally driven around 4, a plurality of rotary blades 15 attached to an outer peripheral surface of the rotor 13, a front end portion of a base plate 21 at a position where the rotor 13 is sandwiched in front and back, and The crushing section 12 including the rotary blade 15 and the fixed blade 16 mounted so as to face the inner surface of the casing front wall plate 9b so as to face each other with a required clearance.
And a screen 17 which is curved along the lower side of the rotor 13 and has a sieve mesh having an opening amount corresponding to the desired crushing particle size of the waste, which is provided below the crushing section 12. It is installed between the front end of the base plate 21 and the front wall plate 9b of the casing, and further on the base plate 21,
The pusher block 20 is arranged so that it can be moved forward and backward on the base plate 21 along the guide rails 19 by the expansion and contraction operation of the expansion and contraction actuator 18 arranged in the front-rear direction. Two
The waste 1 dropped and supplied onto the pusher block 1 is advanced by the operation of the expansion and contraction actuator 18.
Is pressed toward the rotor 13 side to be cut by the rotary blade 15 and the fixed blade 16 of the crushing unit 12 and crushed, and only the waste 1 crushed to a particle size that can pass through the eyes of the screen 17 by this crushing is discharged. By discharging from the outlet 22, the waste 1 with a uniform crushed particle size can be obtained.

By the way, as the waste 1 such as the above-mentioned paper or plastic, which is carried into the crushing treatment facility, hard plastic such as automobile parts, those which are rolled and packed in a sheet or packed are compacted. Or
A long object such as a packing string or a PP band may be included, but these foreign substances are directly converted into the uniaxial crusher 5 described above.
When it is thrown into the screen, the hard foreign matter takes a long time to crush, and the roll-like foreign matter and the compacted foreign matter become bulky when cut and crushed. Of the crushed foreign matter is returned to the casing 9 again,
When a problem occurs that the throughput decreases, and when long foreign substances such as the packing string and the PP band are included, these long foreign substances are included in the rotor 13 of the screen 17.
Since it easily passes through the eye at the upstream end in the rotation direction, there is a problem that it is likely to be discharged for a long time, which may cause a problem that the crushing processing efficiency is reduced.

Therefore, conventionally, when the above-mentioned foreign matter is mixed in the waste 1 carried into the crushing treatment facility, the above-mentioned foreign matter is manually selected and taken out from the general waste 1. , Using a guillotine type cutting machine, the hard one is cut into small pieces, the roll-shaped one is cut open in the axial direction into a sheet, and the one that has been pressed and solidified is cut to loosen the solid, Further, long ones are roughly crushed in advance such as cutting into short pieces, and then put into the uniaxial crusher 5.

[0007]

However, as described above, the guillotine type is used to remove foreign matter such as hard material, roll-shaped material, compacted material, or long material mixed in general waste. When coarse crushing is performed using a cutting machine, there is a problem that the labor and time required for the work increase.

Incidentally, a horizontal biaxial type crusher which is widely used when it is not necessary to make the crushing particle sizes particularly uniform is a main crusher (uniaxial crushing machine) in the waste crushing treatment facility shown in FIG. It may be possible to provide the two-axis crusher for coarse crushing of foreign matters by providing it in the front stage of the machine) 5, but in this case, a smooth paper such as a seal mount peculiar to paper or plastic waste. It is sometimes difficult to bite a blade with a twin screw type crusher for a long object such as a roll, a packing string, or a PP band. The machine cannot be used as a pretreatment (coarse crushing) device for the crusher 5 in the waste crushing treatment facility.

Therefore, according to the present invention, even when a hard foreign material, a roll-shaped, or a long foreign material is mixed in waste and carried in, the foreign material is easily coarsely crushed and then transferred to the main crusher. It is intended to provide a waste crushing treatment facility which can be supplied and can perform crushing treatment without lowering the treatment efficiency of the main crusher.

[0010]

In order to solve the above problems, the present invention provides a waste crushing treatment facility in which waste is thrown into a main crusher and crushed to a required crushing particle size. A uniaxial crusher for coarse crushing is provided in the preceding stage of the main crusher for coarsely crushing foreign substances mixed in the waste.

[0011] Of the wastes carried in, foreign substances are sorted before being fed to the main crusher and are fed to the uniaxial crusher for coarse crushing. Thereby, the foreign matter is roughly crushed in advance by the uniaxial crusher for coarse crushing, for example, a roll wound into a sheet, and a long object is cut into short pieces.
Since the hard material is cut into small pieces and then supplied to the main crusher, the crushing process of the waste can be smoothly performed in the main crusher without being hindered by foreign matter.

Further, a uniaxial crusher for coarse crushing is provided with a casing which extends in the front-rear direction, has a loading hopper attached to the front side of the upper part, and has a discharge port at the lower position of the front end, and a base plate at the rear position in the casing. A pusher block housed so as to be able to move forward and backward, and a rotor provided to be rotatably arranged in the left-right direction between the base plate in front of the pusher block and the front wall plate of the casing, and the outer circumference of the rotor. A large number of rotary blades are attached to the surface portion, and a crushing portion is provided at the front end of the base plate that is behind the rotor and is composed of fixed blades that are attached so as to face the rotary blade while maintaining a required clearance. A sieve having a curved shape along the lower side of the rotor at a lower position of the portion, narrower on the upstream side in the rotor rotation direction, and gradually increasing in opening amount toward the downstream side in the rotor rotation direction. By providing a screen with eyes, long objects such as cords and ropes do not easily pass through the screen at the part where the opening on the upstream side in the rotor rotation direction with a small opening is provided. Since it can be held, it can efficiently cut and crush the above long objects, and since it has a sieve with a large opening on the downstream side of the rotor rotation direction of the screen, it prevents foreign matter and pushes packed in a roll. Even when the solidified foreign matter is crushed and becomes bulky, rough crushing can be performed without increasing passage resistance.

Further, a uniaxial crusher for coarse crushing is provided with a casing extending in the front-rear direction, having a charging hopper attached to the front position of the upper portion and having a discharge port at the lower position of the front end, and a base plate at the rear position in the casing. The pusher block is housed so as to be able to move forward and backward, and a crushing unit provided between the base plate in front of the pusher block and the front wall plate of the casing, and the crushing unit can be rotationally driven. The rotors arranged in the left-right direction, a plurality of rotary blades attached to the outer peripheral surface of the rotor, and the front edge of the base plate behind the rotor, which faces the rotary blades with a required clearance. The fixed blade installed in such a manner that the required clearance is maintained between the fixed blade and the fixed blade at a position in the vicinity of the downstream side of the fixed blade in the rotor rotation direction, and the gap between the fixed blade and the fixed blade can be adjusted. By including the variable fixed blade, the fixed blade and the variable fixed blade do not have a screen below, so the passage resistance can be greatly reduced and the throughput can be secured, and the rotation Blade and fixed blade,
Also, since it crushes in two stages of the rotary blade and the variable fixed blade, it is possible to cut long objects, and adjust the crushing grain size by adjusting the interval between the fixed blade and the variable fixed blade. Will also be possible. Further, since there is no screen, it is easy to access the crushing section, which makes it possible to replace the blade of the rotary blade from the outside.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 (a) and (b) show an embodiment of the waste crushing treatment facility of the present invention, and like the one shown in FIG. 4, the uniaxial crusher as shown in FIG. In a waste crushing treatment facility comprising a main crusher 5 and a feed hopper 6 of the main crusher 5 connected to a raw material supply conveyor 4 for guiding the waste 1 from the pit 3 of the stockyard 2, A uniaxial crusher 23 for coarse crushing is provided in front of the main crusher 5, and the discharge port 22 of the uniaxial crusher 23 for coarse crushing is connected to the pit 3 via a coarse crushed substance discharge conveyor 24. Then, the foreign matter 25 that has been mixed in the waste 1 that has been carried in is selected and introduced into the above-mentioned coarse crushing uniaxial crusher 23, whereby the foreign matter 25 is roughly crushed and the roughly crushed foreign matter is processed. 25 is a coarsely crushed material discharge conveyor 24
So that it can be crushed by being supplied to the main crusher 5 by the raw material supply conveyor 4 together with the general waste 1 directly fed from the stockyard 2 to the pit 3 To do.

The uniaxial crusher 23 for coarse crushing shown in FIG.
As shown in (a) and (b), in the same configuration as the uniaxial crusher 5 shown in FIG.
Instead of using a screen 17 having a screen having an opening amount corresponding to the crushing particle size on the entire surface, a fixed blade provided on the upstream side in the rotation direction of the rotor 13 of the crushing unit 12, that is, the front end of the base plate 21. The screen 26 has a narrow opening in the vicinity of 16 and has a screen 26a in which the opening gradually increases toward the downstream side in the rotation direction of the rotor 13.

Other configurations are the same as those shown in FIGS. 4 and 5, and the same components are designated by the same reference numerals.

In the case of treating the waste 1 in the waste crushing treatment facility having the above structure, the waste 1 carried into the stock yard 2 by the collection vehicle 7 or the like is once accumulated in the stock yard, where Hard ones, roll-like ones, compacted ones mixed in waste 1, and
After the long material is sorted as the foreign matter 25, the general waste 1 from which the foreign matter 25 is sorted and removed is introduced into the pit 3 by the transfer means 8. As a result, the general waste 1 is conveyed by the raw material supply conveyor 4 and is thrown into the charging hopper 5 of the main crusher 5 to be crushed by the main crusher 5.

On the other hand, the foreign matter 25 selected from the general waste 1 is fed into the feeding hopper 6 of the uniaxial crusher 23 for coarse crushing. As a result, the foreign matter 25 is
After being dropped and supplied through the charging port 11 into the casing 9 of the crushing uniaxial crusher 23, the telescopic actuator 1
As the pusher block 20 is moved forward by the operation of 8, the crusher 12 is pressed toward the crushing section 12, whereby it is cut and crushed by the rotary blade 15 of the crushing section 12 and the fixed blade 16 at the front end of the base plate 21. After that, the foreign matter 25 is removed from the base plate 21.
Is dropped to the upstream end of the rotor 13 of the screen 26 in the rotation direction, which is near the fixed blade 16 at the front end of the rotor. At this time, since the opening amount of the sieve mesh 26a at the upstream end of the rotor 26 of the screen 26 in the rotation direction is narrow, the long foreign matter 25 cannot easily pass through the sieve mesh 26a of the screen 26. This prevents the long foreign matter 26 from being cut short. Further, the roll-shaped foreign matter 25 is cut into a sheet by being cut by the rotary blade 15 and the fixed blade 16, and the foreign matter 25 that has been pressed and solidified is cut by the rotary blade 15 and the fixed blade 16. However, since the screen 26 is made larger (lighter), the opening amount of the sieve mesh 26a is gradually increased toward the downstream side in the rotation direction of the rotor 13, so that the roll-shaped foreign matter is The sheet-like coarse crushed product generated by the crushing of 25 and the coarse crushed product in which the foreign matter 25 that has been pressed and solidified are removed from the screen 26a having a large opening located on the downstream side in the rotation direction of the rotor 13 of the screen 26. You will be able to pass. Furthermore, the hard foreign matter 25 is
As the pusher block 20 advances, the pusher block 20 is pressed against the rotating rotary blade 15, so that the rotary blade 15 is gradually cut and crushed. The foreign matter 25 having a size that cannot pass through the eyes of the screen 26 is cut and crushed by the rotary blade 15 and the fixed blade 16 of the casing front end wall 9b, returned to the inside of the casing 9, and then again the rotary blade 15 and the base. Fixed blade 16 at the front end of plate 21
As a result of cutting by the method, coarse crushing is performed.

Thereafter, the uniaxial crusher 23 for coarse crushing is used.
The coarsely crushed foreign matter 25a that has been subjected to the coarse crushing treatment at 1 is discharged from the outlet 22 and then conveyed to the pit 3 by the coarsely crushed substance conveying conveyor 24. The waste material 1 is conveyed by the raw material supply conveyor 4 to the hopper of the main crusher 5 to be put therein, and crushed by the main crusher 5.

As described above, according to the waste crushing treatment facility of the present invention, the foreign matter 25 such as hard, roll-shaped, and long particles mixed in the waste 1 is preliminarily roughened by the coarse crushing uniaxial crusher 23. A coarsely crushed foreign substance 25 that can be crushed and is subjected to the coarse crushing treatment
Since a can be supplied to the main crusher 5 for crushing treatment, the main crusher 5 can perform crushing treatment without lowering treatment efficiency. Also, the foreign matter 25
The labor and time required for the coarse crushing process can be significantly reduced as compared with the case where the conventional guillotine-type cutting machine is used.

Furthermore, in the above-mentioned coarse crushing uniaxial crusher 23,
The opening amount of the sieve mesh 26a of the screen 26 is set to the rotor 1
Since it is narrowed on the upstream side in the rotational direction of 3, it is possible to prevent the long foreign matter 25 from easily passing through the screen 26. Therefore, the long foreign matter 25 is efficiently cut and crushed. be able to. Also, the screen 26
Since the opening amount of the sieve mesh 26a is gradually increased from the upstream side to the downstream side in the rotation direction of the rotor 13, the roll-shaped foreign matter 25 is cut open and becomes a sheet shape, or the bulk increases. Even if the foreign matter 25 that has been compacted is crushed and unraveled to increase the bulk, the screen 26
Since it is possible to pass through the sieve mesh 26a having a large opening amount located on the downstream side of the rotor 13 in the rotation direction, it is possible to prevent the possibility that the passage resistance increases and the processing capacity decreases.

Next, FIG. 3 shows another embodiment of the present invention. In a waste crushing treatment facility having the same structure as that shown in FIGS. 1 and 2 (a) and (b), A uniaxial crusher for coarse crushing, which is installed in front of the main crusher 5, is shown in FIG.
(A) A screen 26 having a sieve opening 26a whose opening amount is gradually increased from the upstream side to the downstream side in the rotation direction of the rotor 13 at a position below the crushing portion 12 as shown in (b).
Instead of the uniaxial crusher 23 for coarse crushing, the crushing section 12a has a large number of rotary blades 15 attached to the outer peripheral surface of the rotor 13 that can be rotationally driven, and the rear position of the rotor 13. In addition to the fixed blade 16 attached to the front end of the base plate 21 to face the rotary blade 15 with a required clearance, the fixed blade 16 is provided at a position near the downstream side of the rotor 13 in the rotational direction of the rotor 13. Rotary blade 1
5 and a variable type fixed blade 2 provided so as to face each other with a required clearance and to adjust the distance between the fixed blade 16 and the fixed blade 2.
A uniaxial crusher 23a for coarse crushing equipped with No. 7 is adopted.

More specifically, the uniaxial crusher 23 for coarse crushing described above.
The variable fixed blade 27 in the crushing portion 12a of a has a length corresponding to the longitudinal dimension of the rotor 13 in the left-right direction, has a total length longer than the diameter of the rotor 13 by a required dimension, and has an intermediate portion. A pair of left and right lever members 28 each having a shaft mounting hole 29 are formed in the rotor 13 through the shaft mounting hole 29.
The variable fixed blade 27 is provided at the lower end portions of the left and right lever members 28 while being provided so as to be rotatable around the rotary shaft 14 by being loosely fitted to the rotary shaft 14 protruding at both ends. Both ends of each of the left and right lever members 28 are connected to each other, and the base end portions of a pair of left and right expandable actuators 30 that interlock with each other are provided via brackets 31 at desired positions in the casing 9 that are rear positions of the upper end portions of the left and right lever members 28. The structure is such that it is mounted so as to be rotatable in the vertical direction, and the tip end portion of the operating rod 30a of each telescopic actuator 30 is rotatably coupled in the vertical direction via a pin 32 to the upper end portion of the corresponding lever member 28. By extending and contracting each expansion and contraction actuator 30, the lever member 28
The variable fixed blade 27 is moved in the front-rear direction about the rotary shaft 14 via the, so that the distance between the fixed blade 16 and the fixed blade 16 can be adjusted without changing the required clearance with the rotary blade 15. is there.

Other configurations are the same as those shown in FIGS. 2A and 2B, and the same components are designated by the same reference numerals.

According to the present embodiment, when the foreign matter 25 mixed in the waste 1 that has been carried in is selected and put into the coarse crushing uniaxial crusher 23a, a long foreign matter 25 such as a string or a PP band is selected. Immediately after being cut and crushed by the rotary blade 15 and the fixed blade 16, it is cut and crushed by the rotary blade 15 and the variable fixed blade 27, so that it can be cut into short pieces. The foreign matter 25 that has been pressed and solidified is cut and crushed in two stages by the rotary blade 15, the fixed blade 16 and the variable fixed blade 27, so that the rolled foreign material 25 is pressed and solidified into a sheet shape. The foreign matter 25 is a coarsely crushed material 25a in a state where the lumps are broken, and at this time, even if the bulk is increased, since there is no screen below the crushing portion 12a, the coarse crushing processing can be performed without increasing the passage resistance.
The hard foreign matter 25 is pressed against the crushing section 12a by the pusher block 20 which moves forward, whereby the rotating rotary blade 1 is rotated.
By 5, it is possible to gradually reduce the size by cutting. Therefore, as in the embodiment of FIG. 2 described above, the foreign matter 25 is made into the coarsely crushed product 25a by the uniaxial crusher for coarse crushing 23a, and then supplied to the main crusher 5 together with the general waste 1. Therefore, the crushing process by the main crusher 5 can be performed without lowering the processing efficiency, and the foreign matter 2
The labor and time required for the coarse crushing treatment of No. 5 can be significantly reduced as compared with the case where the conventional guillotine-type cutting machine is used.

Further, the crushing particle size can be adjusted by adjusting the distance between the fixed blade 16 and the variable fixed blade 27, and since there is no screen, the crushing portion 12a can be easily accessed. Therefore, it becomes possible to replace the blade of the rotary blade 15 from the outside.

The present invention is not limited to the above embodiment, and the foreign matter 25 mixed in the waste 1
If the main crusher 5 can be supplied to the main crusher 5 after being roughly crushed by the uniaxial crusher 23, 23a for coarse crushing, the waste crusher adopts a crusher of a type other than the uniaxial crusher as the main crusher 5. Applicable to processing equipment, Fig. 1 and Fig. 2
In the embodiment shown in (a) and (b), the foreign matter 25 dropped on the screen 26 after being cut and crushed by the rotary blade 15 and the fixed blade 16 at the front end of the base plate 21 is removed from the screen 2
The fixed blade 16 provided on the casing front wall plate 9b may be omitted as long as it can be almost completely dropped from the upstream side of the rotor 13 in the rotation direction of the rotor 6 toward the downstream side through the sieve mesh 26a having an increased opening amount. Of course, various changes can be made without departing from the scope of the present invention.

[0029]

As described above, according to the waste crushing treatment facility of the present invention, the following excellent effects are exhibited. (1) In a waste crushing treatment facility in which waste is put into a main crusher and crushed to a required crushing particle size, foreign matter mixed in the waste is roughly crushed before the main crusher. Since it is configured to be provided with a uniaxial crusher for coarse crushing, foreign matter in the carried-in waste is
The foreign matter can be supplied to the main crusher after the foreign matter is subjected to the coarse crushing treatment by selecting in a stage before the introduction into the main crusher and feeding it into the uniaxial crusher for coarse crushing. Then, the crushing treatment can be performed without lowering the treatment efficiency. Further, the labor and time required for the coarse crushing treatment of the foreign matter can be significantly reduced as compared with the case where the conventional guillotine type cutting machine is used. (2) A uniaxial crusher for coarse crushing, which extends in the front-rear direction and has a casing provided with a loading hopper at the front position of the upper portion and a discharge port at the lower position of the front end, and a base plate at a rear position in the casing. Between the pusher block housed so that it can move forward and backward, and between the base plate in front of the pusher block and the front wall plate of the casing, the rotor is provided so as to be rotatable in the left-right direction, and on the outer peripheral surface of the rotor. A large number of rotary blades are provided, and a crushing section made up of fixed blades mounted so as to face the rotary blade with a required clearance at the front end of the base plate behind the rotor, and further, In the lower position, a screen having a curved shape along the lower side of the rotor, narrowed on the upstream side in the rotor rotation direction, and having a gradually increasing opening amount toward the downstream side in the rotor rotation direction is provided. By having a configuration in which the lean is provided, long objects such as cords and ropes can be held without easily passing through the screen in the portion where the opening on the upstream side in the rotor rotation direction with a small opening is provided, While efficiently cutting and crushing the long objects,
Since a screen with a large opening is provided on the downstream side of the screen in the rotor rotation direction, the passage resistance is increased even when the foreign matter packed in a roll or the compacted foreign matter is crushed and becomes bulky. Can be roughly crushed without (3) A uniaxial crusher for coarse crushing, a casing extending in the front-rear direction, having a charging hopper attached to the front side of the upper part, and a discharge port provided at the lower position of the front end, and a base plate at the rear position in the casing. A pusher block housed so as to be able to move forward and backward, and a crushing portion provided between the base plate in front of the pusher block and the front wall plate of the casing,
Further, the crushing unit, a rotor provided to be rotatably arranged in the left-right direction, a plurality of rotary blades attached to the outer peripheral surface of the rotor, and the rotary blade at the front end of the base plate behind the rotor. A fixed blade mounted so as to face each other while maintaining a required clearance, and to maintain the required clearance with the rotary blade at a position in the vicinity of a downstream side of the fixed blade in the rotor rotation direction and to adjust a distance between the fixed blade. Since the fixed blade and the variable fixed blade have no screen below the fixed blade, the passage resistance can be greatly reduced and the throughput can be secured. By crushing in two stages, the rotary blade and the fixed blade, and the rotary blade and the variable fixed blade, it is possible to cut long objects, and by adjusting the interval between the fixed blade and the variable fixed blade. It becomes possible to adjust the 砕粒 degree. Further, since there is no screen, it is easy to access the crushing section, which makes it possible to replace the blade of the rotary blade from the outside.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing an embodiment of a waste crushing treatment facility of the present invention.

FIG. 2 shows a uniaxial crusher for coarse crushing used in the equipment of FIG. 1, (a) a schematic side view of cutting, and (b) an enlarged view of a main part.

FIG. 3 is a cut side view showing a main part of a uniaxial crusher for coarse crushing used in another embodiment of the present invention.

FIG. 4 is a schematic diagram showing an example of a conventional waste crushing treatment facility.

FIG. 5 is a cut side view schematically showing an example of a uniaxial crusher.

[Explanation of symbols]

1 waste 5 Crusher (main crusher) 25 foreign matter 23,23a Single crusher for coarse crushing 6 Input hopper 22 Outlet 9 casing 21 Base plate 20 pusher block 9b Front wall plate 13 rotor 15 rotary blades 16 fixed blade 12,12a Crushing part 26a sieve mesh 26 screen 27 variable fixed blade

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Kunikatsu Anzai             11 Kitahama-cho, Chita City, Aichi Prefecture             Do M Co., Ltd. (72) Inventor Kazuo Kikuchi             11 Kitahama-cho, Chita City, Aichi Prefecture             Do M Co., Ltd. F term (reference) 4D065 CA16 CB01 CC01 DD18 DD26                       EB12 EB14 ED06 ED23

Claims (3)

[Claims] 1. In a waste crushing treatment facility in which waste is put into a main crusher and crushed to a required crushing particle size, foreign matter mixed in the waste is placed in front of the main crusher. A waste crushing treatment facility comprising a uniaxial crusher for rough crushing for rough crushing. 2. A uniaxial crusher for coarse crushing, a casing extending in the front-rear direction, having a charging hopper attached to a front position of an upper portion thereof, and having a discharge port at a lower position of a front end thereof, and a base plate at a rear position in the casing. A pusher block housed so as to be able to move forward and backward, and a rotor provided to be rotatably arranged in the left-right direction between the base plate in front of the pusher block and the front wall plate of the casing, and the outer circumference of the rotor. A large number of rotary blades attached to the surface portion, and a crushing portion consisting of a fixed blade attached so as to face the rotary blade and the required clearance at the front end of the base plate which is behind the rotor,
Further, at a position below the crushing portion, there is provided a sieve which has a curved shape along the lower side of the rotor and is narrow on the upstream side in the rotor rotation direction and gradually increases in opening amount toward the downstream side in the rotor rotation direction. The waste crushing treatment facility according to claim 1, wherein the facility is provided with a screen. 3. A uniaxial crusher for coarse crushing, a casing extending in the front-rear direction, having a charging hopper attached to a front position of an upper portion thereof, and a discharge port provided at a lower position of a front end thereof, and a base plate at a rear position in the casing. The pusher block is housed so as to be able to move forward and backward, and a crushing unit provided between the base plate in front of the pusher block and the front wall plate of the casing, and the crushing unit can be rotationally driven. The rotors arranged in the left-right direction, a plurality of rotary blades attached to the outer peripheral surface of the rotor, and the front edge of the base plate behind the rotor, which faces the rotary blades with a required clearance. The fixed blade attached as described above, and the fixed blade can be provided at a position in the vicinity of the downstream side in the rotor rotation direction of the fixed blade so as to maintain a required clearance with the rotary blade and adjust the distance between the fixed blade. The waste crushing treatment facility according to claim 1, wherein the waste crushing treatment facility comprises a modified fixed blade.