JPH1199340A - Crusher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively produce crushed material belonging to a desired rank of particle size. SOLUTION: This crusher has, between a primary crushing means 7 for primarily crushing an object to be crushed 5 and a secondary crushing means 11 for secondarily crushing the crushed material in order to finely crushing the crushed material that has been primarily crushed by the primary crushing means 7, a particle size selector 12 for selecting off-specification crushed material of large particle size of the primarily crushed material from on-specification crushed material of proper particle size to guide the off-specification crushed material of large particle size. In this way, crushed material of desired particle size can be effectively produced and an improvement of adjusting work efficiency can be contrived.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crushing apparatus for crushing an object to be crushed, such as a glass bottle, a tile, a ceramic, or the like, to produce a crushed material.

[0002]

2. Description of the Related Art Conventionally, a crushing apparatus has been known which applies an impact to an object to be crushed such as an empty glass bottle, a tile, a ceramic, or the like, and crushes the object to be crushed to produce a crushed object. In this type of crushing apparatus, a crushing rotor is provided in the crushing chamber, and when the object to be crushed is put into the crushing chamber, the rotating crushing rotor collides with the object to be crushed and applies an impact. The object is crushed to produce a crushed object.

The resulting crushed material is reused as a secondary product, for example, a mixture of asphalt raw materials for road pavement, and the particle size of the crushed material is the magnitude of the impact applied to the object to be crushed. The particle size is determined mainly by the number of collisions between the object to be crushed and the rotor for crushing, and the particle size obtained only by rotation of the rotor for crushing varies widely. Therefore, the particle size is ranked according to the purpose of reuse. Is required. Further, it is required that a crushed material belonging to a rank having a desired particle size can be obtained efficiently.

In a conventional crushing apparatus, in order to efficiently obtain a crushed material belonging to a rank having a desired particle size, the number of revolutions of a crushing rotor is controlled, and the impact force applied to the crushed object and the number of collisions are reduced. However, a large percentage of crushed materials belonging to non-standard large particle size ranks other than crushed materials belonging to the desired particle size rank are obtained, and only by controlling the rotation speed of the crushing rotor, the desired particle size can be obtained. It is difficult to efficiently obtain crushed materials belonging to the rank of.

[0005] Therefore, in the conventional crushing apparatus, a primary crushing rotor and a secondary crushing rotor are provided, the object to be crushed is primarily crushed by the primary crushing rotor, and the primary crushed material is secondarily crushed. Secondary crushing is performed by a rotor for use, and crushed materials belonging to a large particle size and out of specification are further finely crushed so that a large proportion of crushed materials belonging to a rank having a desired particle size can be obtained.

[0006] The secondary crushed crushed material is sorted by a particle size sorter, and the non-standard crushed material having a large particle size and the non-standard crushed material having a small particle size are removed. The crushed material within the standard to which it belongs is taken out.

[0007]

However, in the conventional crushing apparatus, the object to be crushed is finely crushed by primary crushing and secondary crushing, and then the particle size of the crushed material is sorted. Not only the non-standard crushed material having a large particle size generated by the primary crushing is finely crushed, but also the crushed material having a size belonging to the rank of the desired particle size by the primary crushing is finely crushed by the secondary crushing, There is a large generation ratio of crushed materials belonging to the ranks of fine particle diameters other than the ones belonging to the rank of the desired particle size, and there is a disadvantage that crushed materials belonging to the rank of the desired particle size cannot be efficiently produced.

In the case where the shape of the object to be crushed, the material of the object to be crushed, the input amount, and the like are different,
The number of rotations of the crushing rotor is adjusted so that the amount of crushed material belonging to the rank of the desired particle size is increased, but in the configuration in which the particle size of the crushed material is determined by adjusting only the number of rotations of the crushing rotor. However, there is also a problem that the adjustment of the rotational speed of the crushing rotor becomes trial and error, and the adjustment work efficiency is poor.

The present invention has been made in view of the above circumstances, and can efficiently produce crushed materials belonging to a rank having a desired particle size, and can improve the efficiency of adjustment work. A crushing device is provided.

[0010]

A crushing apparatus according to claim 1 comprises a primary crushing means for primary crushing an object to be crushed and a crushing device for finely crushing the crushed material primary crushed by the primary crushing means. Between the primary crushed material and the secondary crushing means for secondary crushing of the material, the primary crushed material and the crushed material with a large particle size outside the standard and the appropriate crushed material with a particle size within the standard are selected and Characterized in that a particle size selector for guiding the crushed material having a large particle size to the secondary crushing means is provided.

A crushing device according to a second aspect of the present invention is the crushing device according to the first aspect, further comprising a recirculation passage for recirculating the secondary crushed material toward the particle size selector.

According to a third aspect of the present invention, there is provided a crushing apparatus for crushing an object to be crushed by applying an impact by rotation of a crushing rotor, wherein the crushing object is crushed in cooperation with the crushing rotor. A plate is movably provided with a gap in the rotation area of the crushing rotor, and the impact plate is used to adjust the size of the particle size using the size of the gap and the rotation speed of the crushing rotor as parameters. And a control means for controlling the crushing rotor.

According to a fourth aspect of the present invention, in the crushing apparatus according to the third aspect, the crushing rotor first crushes the crushed object and the first crushing rotor and the second crushed object. The impact plate is provided facing the rotation range of the primary crushing rotor, and the control means controls the size of the gap, the rotation speed of the primary crushing rotor, and the secondary The size of the particle size of the crushed material is adjusted using the rotation speed of the crushing rotor and the rotation speed as parameters.

According to a fifth aspect of the present invention, there is provided the crushing device according to the fourth aspect, wherein the primary crushed crushed material having a large particle size out of the standard and the crushed material having an appropriate particle size in the standard. And a secondary particle crusher is provided between the primary crusher rotor and the secondary crusher rotor, and a particle size selector for guiding the crushed material having a large particle size outside the standard to the secondary crushing means. And

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION

[0016]

FIG. 1 is a system diagram of a crushing apparatus according to a first embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a crushing apparatus. This crushing apparatus 1 has a receiving hopper 2, a belt conveyor 3, and a primary crushing chamber 4. The object to be crushed is, for example, an empty glass bottle 5, which is put into the receiving hopper 2 by, for example, a shovel. At the lower part of the receiving hopper 2, a vibration feeder 6 is provided.
The vibrating feeder 6 has a function of preventing clogging of a dropping port and a role of supplying a predetermined amount of the glass bottle 5 to the belt conveyor 3. The glass bottle 5 dropped on the belt conveyor 3 is transported toward the primary crushing chamber 4.

The primary crushing chamber 4 is provided with a primary crushing rotor 7 as primary crushing means. The primary crushing rotor 7 is driven to rotate by an electric motor (not shown). The glass bottle 5 is primarily crushed by the hammer piece 7a of the primary crushing rotor 7. The glass bottle 5 is impacted by the collision of the hammer piece 7a of the primary crushing rotor 7, and is thereby crushed into a primary crushed material.

The primary crushing chamber 4 is provided with a dust discharge passage 8. Some of the glass bottles 5 become dust (fine particles) by primary crushing, and the dust is conveyed in the direction of arrow A1 by wind generated by rotation of the primary crushing rotor 7, and is passed through the dust discharge passage 8 to the cyclone. It is led to 9. Some glass bottles 5 are loaded with a metal lid, a paper label, or the like attached thereto.
Similarly, the metal powder is conveyed in the direction of arrow A1 by the wind, and is guided to the cyclone 9 via the dust discharge passage 8.

Below the primary crushing chamber 4 is a secondary crushing chamber 10.
Is provided. The secondary crushing chamber 10 is provided with a secondary crushing rotor 11. Reference numeral 11a is the hammer piece. A particle size sorter 12 is provided between the primary crushing chamber 4 and the secondary crushing chamber 10. Among the primary crushed materials, those having various particle diameters not conveyed toward the dust discharge passage 8 due to the wind generated by the rotation of the primary crushing rotor 7 fall through the guide passage 13 and are guided to the particle size selector 12.

The particle size selector 12 has a housing 15.
A vibration motor 16A is provided on the outer wall of the housing 15, and the housing 15 is appropriately vibrated by the vibration motor 16A. Inside the casing 15, a particle size sorting screen 1 is provided.
6, 17, and 18 are provided in order from the upper side to the lower side. Each of the particle size sorting nets 16, 17, 18 is inclined downward. The particle size sorter 12 sorts the particle size by transferring the crushed material while applying vibration.

The particle size sorting net 16 prevents, for example, the primary crushed material having a particle size of 8 mm or more from falling, and allows the primary crushed material having a particle size of less than 8 mm to fall toward the particle size sorting net 17. The particle size sorting net 17 prevents, for example, primary crushed material having a particle size of 5 mm or more from falling, and a particle size sorting network 18 of primary crushed material having a particle size of less than 5 mm.
Allow falling towards. The particle size sorting screen 18 prevents the primary crushed material having a particle size of 2 mm or more from dropping, and has a particle size of 2 mm.
Allow fall of primary crushed material less than.

The outlet 18a below the particle size sorting screen 18
Is provided with a container 19, and the container 19 has a particle size of 2 m.
It plays a role in accumulating crushed materials of less than m. Particle size sorting screen 1
A container 20 is provided at a discharge port 17a downstream of the particle size sorting net 18 below the container 7, and the container 20 plays a role of accumulating crushed material having a particle size of 2 mm or more and less than 5 mm. A container 21 is provided below the particle size sorting screen 16 and at a discharge port 16 a downstream of the particle size sorting screen 17.
1 plays the role of accumulating crushed material having a particle size of 5 mm or more and less than 8 mm.

On the downstream side of the particle size sorting screen 16, the primary crushed material having a large particle size and a nonstandard size (here, a particle size of 8 mm
A guide passage 22 for guiding the above-mentioned crushed material) to the secondary crushing chamber 10 is provided. The primary crushed material having a large particle size outside the standard is secondarily crushed by the secondary crushing rotor 11, and passes through the discharge passage 23 by wind generated by rotation of the secondary crushing rotor 11 (wind in the direction indicated by arrow A <b> 2). And sent to the cyclone 24. The cyclone 24 plays a role of collecting the secondary crushed material by rotating the secondary crushed material (particles) in the cylinder 24a and dropping the secondary crushed material along the inner peripheral wall by the centrifugal force generated by the rotation. . The cyclone 24 is provided with a guide passage 25, and the guide passage 2
5 is opened on the upstream side of the particle size selector 12, and the discharge passage 2
3. The guide passage 25 constitutes a recirculation passage for recirculating the secondary crushed material toward the particle size selector 12.

The particle size sorter 12 is provided with a rotary magnet type sorter 26 on the upstream side thereof.
Plays a role of adsorbing and removing crushed materials such as iron pieces constituting the cap. The particle size selector 12 is provided with a dust discharge passage 27, and this dust discharge passage 27 joins with the dust discharge passage 8. An auxiliary wind is supplied to the upstream side of the dust discharge passage 27 by a blower 28, and the dust and paper waste in the particle size selector 12 are guided to the cyclone 9 by the auxiliary wind. The flow rate and amount of the auxiliary wind are adjusted by the valve 29.

The cyclone 9 sorts out dust, paper waste and metal powder of the glass composition guided by the dust discharge passages 8 and 27, and plays a role of removing foreign matter such as paper waste and metal powder. The dust that has been accumulated and not removed by the cyclone is guided to the bag filter device 31 downstream. The bag filter device 31 plays a role of removing fine particles such as dust, and the dust is accumulated in the storage case 32 as powder. A blower 33 is connected to the bag filter device 31, and the blower 33 releases clean air from which dust (fine particles) has been removed to the atmosphere.

The guide tube 3 is provided in the bag filter device 31.
4 to 36 are connected, and the fine particles generated in the primary crushing chamber 4 are directly guided to the bag filter device 31 by the guide tube 34, and the cyclone 2
The fine particles not collected and collected in 4 are directly guided to the bag filter device 31 by the guide tube 35, and the fine particles generated at the discharge ports 16 a to 18 a of the particle size selector 12 are directly guided to the bag filter device 31 by the guide tube 36. .

According to the first embodiment of the present invention, among the primary crushed materials crushed by the primary crushing rotor 7, those having a particle size within an appropriate standard are used by the particle size selector 12 for the containers 19 to 19.
Non-standard crushed material having a large particle size and accumulated in the secondary crusher 21 is sent to the secondary crushing chamber 10, further crushed by the secondary crushing rotor 11, and returned to the particle size sorter 12. The crushed material belonging to the rank of the particle size is efficiently produced.

[0028]

Second Embodiment FIG. 2 is a system diagram of a crushing apparatus according to a second embodiment of the present invention. In FIG. 2, the same components as those shown in FIG. Therefore, a detailed description thereof will be omitted, and only different portions will be described.

In Embodiment 2 of the present invention, an impact plate 37 is provided in the primary crushing chamber 4. The impact plate 37 faces below the primary crushing rotor 7 and in the rotation region thereof with a gap 38 therebetween. The impact plate 37 is swingably attached to the inner wall of the primary crushing chamber 4 and is moved by a drive cylinder 39 installed on the outer wall of the primary crushing chamber 4. The gap 3
The size of 8 is changed by controlling the impact plate 37. The impact plate 37 plays a role of crushing the glass bottle 5 in cooperation with the crushing rotor 7.

As shown in FIG. 3, the crushing apparatus 1 adjusts the size of the particle diameter by using three parameters of the size of the gap 38, the number of rotations of the crushing rotor 7, and the number of rotations of the crushing rotor 11, as parameters. A computer 40 is provided as control means for performing the operations. The computer 40 includes an output of a rotation speed detection sensor 41 of the primary crushing rotor 7 and a secondary crushing rotor 1.
The output of the first rotation speed detection sensor 42 and the output of the detection sensor 43 of the gap 38 are input. Rotation speed detection sensor 4
For example, a rotary encoder is used for 1 and 42.
In this case, the gap 38 is formed by a reciprocating rod 39
For example, a linear encoder is used as the detection sensor 43 because it is determined by the advance amount of “a”. In FIG. 2, the detection sensors 41 to 43 are not shown because the drawing becomes complicated.

The containers 19 to 21 are placed on weight sensors 44 to 46 as shown in FIG.
Are input to the computer 40. The weight sensors 44 to 46 serve to detect the weight of the crushed material accumulated in the containers 19 to 21.

The computer 40 includes detection sensors 41 and 42.
The control signal is output to the motor drive circuits 47 and 48 so that the rotation speed of the primary crushing rotor 7 and the rotation speed of the secondary crushing rotor 11 are appropriately set in accordance with the detection output of In accordance with the detection output of 43, a control signal is output to the drive cylinder 39 so that the gap 38 has a proper gap value. This computer 40 is a container 1
A weight increase tendency judging means 40A for judging the increase tendency of the weight accumulated in 9 to 21 is provided. Details of the function of the weight increase tendency judging means 40A will be described later. In FIG. 2, the drive motor circuits 47 and 48 are omitted for the same reason as the detection sensor is omitted.

The operator operates an operation button (not shown) to select the particle size of the crushed material so that the most crushed material having a desired particle size is obtained. Here, three types of particle sizes of rank A, rank B, and rank C can be selected. For example, rank A has a particle size of 0 mm to less than 2 mm, rank B has a particle size of 2 mm or more to less than 5 mm, and rank C. Has a particle size of 5 mm or more and less than 8 mm.

The weight increase tendency judging means 40A outputs the detection outputs of the weight sensors 44 to 46 for a unit time (for example, 30 minutes).
The weight is read every time to determine the weight of the containers 19 to 21. The computer 40 has a weight increasing tendency determining means 4.
The number of rotations of the primary crushing rotor 7, the number of rotations of the secondary crushing rotor 11, and the size of the gap 38 are adjusted based on the determination result of 0A and the selected rank. Description will be made based on the flowchart shown below.

First, when the power of the crusher 1 is turned on, the computer 40 executes the flowchart shown in FIG. That is, the computer 40 determines whether or not the rank A has been selected (step S.1). When the operator selects the rank A, the computer 40 enters the rank A execution mode (see FIG. 5). When A is not selected, it is determined whether or not rank B has been selected (step S.2). When the operator selects rank B, the mode becomes the rank B execution mode (see FIG. 6), and after a predetermined time has passed. Also rank C when rank B is not selected
It is determined whether or not has been selected (step S.3),
When the operator selects the rank C, the mode is changed to the rank C execution mode (see FIG. 7). Go back to 1,
Until one of the ranks A, B and C is executed, this step S. 1 to S.S. Repeat 3.

When rank A is selected, the computer 4
0 sets the rank A execution mode as shown in FIG. 5, and sets the determination flags f and E to the initial value “0” (S.11,
S. 12). The flag f is set to one of the values “0”, “1”, and “2”, “1” means the end of the adjustment of the gap 38 of the impact plate 37, and “2” is the value for primary crushing. Rotational speed adjustment of the rotor 7 is completed, and “0” means that the rotational speed adjustment of the secondary crushing rotor 11 is completed. The flag E is used for error determination, and is set to a value “from 0 to 3”, and “E = 3” means an error.

Next, the computer 40 reads the detected value X of the size of the gap 38, the detected value N1 of the rotational speed of the primary crushing rotor 7, and the detected value N2 of the rotational speed of the secondary crushing rotor 11 (S). .13). Then, the computer 40 converts the detected values X, N1, and N2 into a predetermined set value XA of the gap 38, a set value N1A of the rotational speed of the primary crushing rotor 7,
It is compared with the set value N2A of the rotation speed of the secondary crushing rotor 11 (S.14). When the detected values X1, XN1, and N2 are different from the set values XA, N1A, and N2A (out of the range of the allowable error), the computer 40 sets the set value X
A, N1A, and N2A are controlled to control the drive cylinder 39 and the motor drive circuits 47 and 48 (S.15).

Next, the computer 40 includes a weight sensor 44.
The detected values Y1, Y2, and Y3 of .about.46 are read (S.1).
6). The weights of the containers 19 to 21 are compared by the weight increase tendency determining means 40A, and the containers 19 to 21 are compared.
The magnitude relationship between the weights of the crushed materials accumulated in the sample is determined (S.
17).

That is, the weight increase tendency judging means 40A judges that the weight of the crushed material accumulated in the container 19 (weight Ag of the crushed material of rank A) is the largest when the relationship of the following inequality (1) is satisfied. When the following inequality relationship (2) is satisfied, it is determined that the weight of the crushed material (weight Bg of the crushed material of rank B) accumulated in the container 20 is the largest, and the following inequality relationship (3) is satisfied. At times, it is determined that the weight of the crushed material accumulated in the container 21 (weight Cg of the crushed material of rank C) is the largest.

Ag> Bg ≧ Cg and Ag> Cg ≧ Bg (1) Bg> Ag ≧ Cg and Bg> Cg ≧ Ag (2) Cg> Ag ≧ Bg and Cg> Bg ≧ Ag (3) (1) ), The amount of the crushed material having the particle diameter belonging to rank A is larger than that of the other ranks B and C. 16, the detection values Y1, Y2, and Y3 are read again after the elapse of a predetermined time, and then the containers 19 to
Then, the weights of the crushed materials stored in the containers 19 to 21 are compared to determine the magnitude relationship (S.17). When the amount of the crushed material having the particle size belonging to rank A is larger than that of the other ranks B and C, the computer 40 sets the S.V. 15 (X = XA, N = N1A, N = N2A) under the conditions set in S.15. 16, S.I. Repeat step 17

Under the conditions satisfying the inequalities (2) and (3), the computer 40 determines that the amount of the crushed material having the particle size belonging to the rank A is smaller than that of the other ranks B and C. Move to 18.

Step S. At 18, the computer 40
Determines whether the flag E is “3”. Flag E
Is "E = 3", it is difficult to automatically set the amount of the crushed material having the particle size belonging to rank A to be larger than the amount of the crushed material having the particle size belonging to the other ranks B and C. Then, the automatic adjustment disabled display is performed and the process is stopped (S. 19).

Since the initial drive flag E is "E = 0", the computer 40 sets the flag S. Judgment as 18 is no,
S. 20 is executed. S. At 20, it is determined whether or not the flag f is “f = 2”. Since the flag f in the initial stage of driving is “f = 0”, the computer 40 sets the flag S. 20 was determined as No, and S. Move to 21. S. In 21, the computer 40 determines whether or not the flag f is “f = 1”. Since the flag f in the initial stage of driving is “f = 0”, the computer 40 sets the flag S. 21 is NO, and S. Move to 22. S. At 22, the computer 40 drives the drive cylinder 39 to rotate the impact plate 37 in a direction in which the size of the gap 38 decreases. Thereafter, the flag f is set to “f =
1 "(S.23). And again, S.I. 1
6 and after a unit time (for example, 30 minutes) elapses,
The detected values Y1, Y2, and Y3 are read, and containers 19 to 2 are read.
Then, the magnitude relation of the weight of the crushed material accumulated in No. 1 is determined (S.17). Since the factor of the size of the gap 38 is considered to greatly contribute to the factor of the number of revolutions, first, the size of the gap 38 was first adjusted.

If the condition of the inequality (1) is not satisfied even if the gap 38 is reduced, the computer 40 sets the S.D. The process proceeds to 18 to determine whether the flag E is “E = 3”. Since the flag E remains "E = 0",
The computer 40 is an S.D. 20 and the flag f is set to “f”.
= 2 ", and when the flag f is not" f = 2 ", it is determined whether or not the flag f is" f = 1 "(S.21). When the gap 38 of the impact plate 37 is adjusted, the flag f is set to “f = 1”. Move to 24. S. In 24, the computer 40 controls the motor drive circuit 47 so that the rotation speed of the primary crushing rotor 7 is increased by a predetermined rotation speed. Then, the computer 40 sets the flag f to “f = 2”.
Is set (S.25), and then again. Move to 16. S. In step 16, after a unit time (for example, 30 minutes) has elapsed again, the detection values Y1, Y2, and Y3 are read, and the magnitude relationship of the weight of the crushed materials accumulated in the containers 19 to 21 is determined (S.17). This is because the factor of the number of revolutions of the primary crushing rotor 7 is considered to greatly contribute to the factor of the number of revolutions of the secondary crushing rotor 11 in consideration of the gap 38. Even if the rotational speed of the primary crushing rotor 7 is increased,
When the condition of the inequality in (1) is not satisfied, the computer 40 sets the S.D. 18, the flag E becomes “E = 3”
Is determined. Since the flag E remains “E = 0”, the computer 40 sets the S.D. The process proceeds to 20 to determine whether the flag f is “f = 2”. When the rotation speed of the primary crushing rotor 7 is increased, the flag f becomes “f =
2 ", the computer 40 sets the S.D. 26
Then, the motor drive circuit 48 is controlled so that the rotation speed of the secondary crushing rotor 11 is increased by a predetermined rotation speed. Thereafter, the computer 40 sets the S.D. 27, the flag f is set to “f = 0”, and then the flag E is set to “E = E + 1”.
(S. 28).

The computer 40 operates as follows. After processing 28,
S. 16, the detection values Y1, Y2, and Y3 are read to determine the magnitude relationship between the weights of the crushed materials accumulated in the containers 19 to 21. If the condition of the inequality (1) is not satisfied, the flag E Until S becomes “E = 3”.
16-S. 18, S.I. 20-S. Step 28 is repeated.

By these series of processes, the gap 3 is adjusted so that the amount of the crushed material having the particle size belonging to rank A is obtained most.
8, the rotation speed of the primary crushing rotor 7 and the rotation speed of the secondary crushing rotor 11 are automatically adjusted.

When rank B is selected, the computer 4
0 sets the rank B execution mode as shown in FIG. 6, and sets the determination flags f and E to the initial value “0” (S.3).
0, S.M. 31). Next, the computer 40 detects the gap 38.
, The detection value N1 of the rotation speed of the primary crushing rotor 7, and the detection value N2 of the rotation speed of the secondary crushing rotor 11.
Is read (S.32). And the computer 40
Converts the detected values X, N1, N2 into a predetermined gap 38.
Set value XB, set value N of rotation speed of primary crushing rotor 7
1B and the set value N2B of the rotation speed of the secondary crushing rotor 11 are compared with each other (S.33). Detection values X1, XN1,
When N2 is different from the set values XB, N1B, and N2B (out of the range of the allowable error), the computer 40 operates the drive cylinder 3 so that the set values XB, N1B, and N2B become the set values XB, N1B, and N2B.
9. Control the motor drive circuits 47 and 48 (S.3)
4).

Next, the computer 40 has a weight sensor 44.
The detected values Y1, Y2, and Y3 are read (S.3).
5). The weights of the containers 19 to 21 are compared by the weight increase tendency determining means 40A, and the containers 19 to 21 are compared.
The magnitude relationship between the weights of the crushed materials accumulated in the sample is determined (S.
36).

Under the condition satisfying the inequality (2),
The amount of the crushed material having the particle size belonging to rank B is different from that of other ranks A and C.
Computer 40 is more than S.D. 35
And the detection values Y1, Y2, Y3
Is read, the weights of the containers 19 to 21 are compared by the weight increase tendency determining means 40A, and the containers 19 to 2 are compared.
Then, the magnitude relationship between the weights of the crushed materials accumulated in No. 1 is determined (S. 36). When the amount of the crushed material having the particle diameter belonging to rank B is larger than that of the other ranks A and C, the computer 40 sets the S.V. 34 (X = XB, N1 = N1)
B, N2 = N2B). 35, S.M. Repeat step 36.

When the condition satisfying the inequality (1) is satisfied, the computer 40 determines that the amount of the crushed material having the particle diameter belonging to the rank A is larger than the amount of the crushed material of the other ranks B and C. . 37, and proceeds to step S. 40-S. When the process of 48 is executed and the condition satisfying the inequality of (3) is satisfied, the amount of the crushed material having the particle diameter belonging to rank C is larger than the amount of the crushed material of the other ranks A and B. . 38, and proceeds to step S. 49-S. The processing of 56 is executed.

First, the amount of the crushed material of rank A is equal to that of rank B,
A case where the amount is larger than the amount of the crushed material C will be described.

S. At 37, the computer 40 determines whether or not the flag E is "3". If the flag E is "E =
In the case of "3", it is difficult to automatically set the amount of the crushed material having the particle size belonging to rank B to be larger than the amount of the crushed material having the particle size belonging to the other rank A. Then, the processing is stopped (S. 39).

Since the initial drive flag E is "E = 0", the computer 40 sets the flag S. 37 is determined to be no,
S. The processing of step 40 is executed. S. At 40, it is determined whether or not the flag f is “f = 2”. Since the flag f in the initial stage of driving is “f = 0”, the computer 40 sets the flag S. 40, the determination was no. It moves to 41. S. In 41, the computer 40 determines whether or not the flag f is “f = 1”. Since the flag f in the initial stage of driving is “f = 0”, the computer 40 sets the flag S. 41 is NO, and S. Move to 42. S. At 42, the computer 40 drives the drive cylinder 39 to rotate the impact plate 37 in a direction to increase the gap 38. Thereafter, the flag f is set to "f = 1" (S.43). And again, S.I. 35, and after a lapse of a unit time (for example, 30 minutes), the detection value Y
1, Y2, and Y3 are read, and the magnitude relation of the weight of the crushed materials accumulated in the containers 19 to 21 is determined (S.3).
6). Even if the size of the gap 38 is increased, if the condition of the inequality (2) is not satisfied (if the condition of the inequality (1) is satisfied), the computer 40 sets the S.D. The flow shifts to 37, where it is determined whether the flag E is "E = 3".
Since the flag E remains “E = 0”, the computer 40 sets the S.D. The process proceeds to 40 to determine whether or not the flag f is “f = 2”. If the flag f is not “f = 2”, it is determined whether or not the flag f is “f = 1” ( S. 41). When the gap 38 of the impact plate 37 is adjusted,
Since the flag f is set to “f = 1”, the computer 40 sets the S.F. Go to 44. S. At 44, the computer 40 controls the motor drive circuit 47 so that the rotation speed of the primary crushing rotor 7 is reduced by a predetermined rotation speed. Then, after setting the flag f to “f = 2” (S.45), the computer 40 again sets the flag f. Move to 35. S. 3
In 5, after the unit time (for example, 30 minutes) has elapsed again, the detection values Y1, Y2, and Y3 are read and the containers 19 to 21 are read.
The magnitude relationship between the weights of the crushed materials accumulated in the sample is determined (S.
36). Even if the rotational speed of the primary crushing rotor 7 is reduced,
When the condition of the inequality of (2) is not satisfied (when the condition of the inequality of (1) is satisfied), the computer 40 determines whether or not S.P. The flow shifts to 37, where it is determined whether the flag E is "E = 3". Since the flag E remains "E = 0",
The computer 40 is an S.D. 40 and the flag f is set to “f”.
= 2 ”. When the rotation speed of the primary crushing rotor 7 is reduced, the flag f is set to “f = 2”. The process proceeds to 46, where the motor drive circuit 48 is controlled so that the rotation speed of the secondary crushing rotor 11 is reduced by a predetermined rotation speed. Thereafter, the computer 40 sets the S.D. 47, the flag f is set to "f = 0", and the flag E is counted up to "E = E + 1" (S.48).

The computer 40 executes After processing 48,
S. 35, the detection values Y1, Y2, and Y3 are read, and the magnitude relation of the weight of the crushed materials accumulated in the containers 19 to 21 is determined. When the condition of the inequality expression (2) is not satisfied ((1 ) When the condition of the inequality is satisfied)
Until the flag E becomes “E = 3”, S.P. 35, S.M. 3
6, S.I. 37, S.M. 40-S. 48 is repeated.

Next, when the amount of the crushed material of rank C is rank A,
A case where the amount is larger than the amount of the crushed material B will be described.

S. At 38, the computer 40 determines whether or not the flag E is "3". If the flag E is "E =
In the case of "3", it is difficult to automatically set the amount of the crushed material having the particle size belonging to the rank B to be larger than the amount of the crushed material having the particle size belonging to the other rank C. Then, the processing is stopped (S. 39).

Since the initial drive flag E is "E = 0", the computer 40 sets the flag S. 38 is determined to be no,
S. 49 is executed. S. At 49, it is determined whether or not the flag f is “f = 2”. Since the flag f in the initial stage of driving is “f = 0”, the computer 40 sets the flag S. 49 was determined to be no, and S.49 was determined. Move to 50. S. At 50, the computer 40 determines whether the flag f is “f = 1”. Since the flag f in the initial stage of driving is “f = 0”, the computer 40 sets the flag S. 50 is determined as No, and S. It moves to 51. S. At 51, the computer 40 drives the drive cylinder 39 to rotate the impact plate 37 in a direction to reduce the gap 38. Thereafter, the flag f is set to "f = 1" (S.52). And again, S.I. 35, and after a lapse of a unit time (for example, 30 minutes), the detection value Y
1, Y2, and Y3 are read, and the magnitude relation of the weight of the crushed materials accumulated in the containers 19 to 21 is determined (S.3).
6). When the condition of the inequality (2) is not satisfied even when the gap 38 is reduced (when the condition of the inequality of (3) is satisfied), the computer 40 sets the S.D. 38, and determines whether or not the flag E is “E = 3”. Flag E
Remains at “E = 0”, the computer 40 sets the S.D. 49, it is determined whether or not the flag f is “f = 2”. If the flag f is not “f = 2”, it is determined whether or not the flag f is “f = 1” ( S.5
0). When the gap 38 of the impact plate 37 is adjusted, the flag f
Is set to “f = 1”, so that the computer 40 sets the S.D. Go to 53. S. In 53, the computer 40
Controls the motor drive circuit 47 so that the rotation speed of the primary crushing rotor 7 is increased by a predetermined rotation speed. Then, after setting the flag f to “f = 2” (S.54), the computer 40 again sets the flag f. Move to 35. S. At 35, after a lapse of a unit time (for example, 30 minutes) again, the detection values Y1, Y2, and Y3 are read, and the magnitude relation of the weight of the crushed materials accumulated in the containers 19 to 21 is determined (S.3).
6). Even if the rotational speed of the primary crushing rotor 7 is increased,
When the condition of the inequality in (2) is not satisfied (when the condition of the inequality in (3) is satisfied), the computer 40 determines whether or not S.P. 38, and determines whether or not the flag E is “E = 3”. Since the flag E remains "E = 0",
The computer 40 is an S.D. 49 and the flag f is set to “f
= 2 ”. When the number of revolutions of the primary crushing rotor 7 is increased, the flag f is set to “f = 2”. The process proceeds to 55, where the motor drive circuit 48 is controlled so that the rotation speed of the secondary crushing rotor 11 is increased by a predetermined rotation speed. Thereafter, the computer 40 sets the S.D. The process proceeds to S.56, where the flag f is set to “f = 0”, and the flag E is counted up to “E = E + 1” (S.57).

The computer 40 operates as follows. After the processing of 57,
S. 35, the detected values Y1, Y2, and Y3 are read to determine the magnitude relationship between the weights of the crushed materials accumulated in the containers 19 to 21. If the condition of the inequality expression (2) is not satisfied ((3 When the condition of the inequality) is satisfied)
Until the flag E becomes “E = 3”, S.P. 35, S.M. 3
6, S.I. 38, S.P. 49-S. Step 57 is repeated.

By the series of these processes, the gap 3 is adjusted so that the amount of the crushed material having the particle size belonging to the rank B is maximized.
8, the rotation speed of the primary crushing rotor 7 and the rotation speed of the secondary crushing rotor 11 are automatically adjusted.

When rank C is selected, the computer 4
0 sets the rank C execution mode as shown in FIG. 7, and sets the determination flags f and E to the initial value “0” (S.6).
0, S.M. 61). Next, the computer 40 detects the gap 38.
, The detection value N1 of the rotation speed of the primary crushing rotor 7, and the detection value N2 of the rotation speed of the secondary crushing rotor 11.
Is read (S.62). And the computer 40
Converts the detected values X, N1, N2 into a predetermined gap 38.
Set value XC, set value N of rotation speed of primary crushing rotor 7
1C and the set value N2C of the rotational speed of the secondary crushing rotor 11 are compared with each other (S. 63). Detection values X1, XN1,
When N2 is different from the set values XC, N1C and N2C (out of the range of the allowable error), the computer 40 sets the drive cylinder 3 so that the set values XC, N1C and N2C become the set values XC, N1C and N2C.
9. Control the motor drive circuits 47 and 48 (S.6)
4).

Next, the computer 40 has a weight sensor 44.
The detected values Y1, Y2, and Y3 of .about.46 are read (S.6).
5). The weights of the containers 19 to 21 are compared by the weight increase tendency determining means 40A, and the containers 19 to 21 are compared.
The magnitude relationship between the weights of the crushed materials accumulated in the sample is determined (S.
66).

Under the condition satisfying the inequality (3),
The amount of crushed material having a particle size belonging to rank C is different from that of other ranks A and B
Computer 40 is more than S.D. 65
And the detection values Y1, Y2, Y3
Is read, the weights of the containers 19 to 21 are compared by the weight increase tendency determining means 40A, and the containers 19 to 2 are compared.
Then, the magnitude relationship between the weights of the crushed materials accumulated in No. 1 is determined (S.66). When the amount of the crushed material having the particle size belonging to rank C is larger than that of the other ranks A and B, the computer 40 sets the S.V. 64 (X = XC, N1 = N1)
C, N2 = N2C). 65, S.M. Step 66 is repeated.

Under the conditions satisfying the inequalities (1) and (2), the computer 40 has a smaller amount of the crushed material having the particle diameter belonging to the rank C than the amount of the crushed materials of the other ranks A and B. From step S. Go to 67.

Step S. In 67, the computer 40
Determines whether the flag E is “3”. Flag E
Is "E = 3", it is difficult to automatically set the amount of the crushed material having the particle size belonging to rank C to be larger than the amount of the crushed material having the particle size belonging to the other ranks A and B. Then, the automatic adjustment disabled display is performed and the process is stopped (S. 68).

Since the initial drive flag E is "E = 0", the computer 40 sets the flag S. Judgment of No at 67,
S. The processing of 69 is executed. S. At 69, it is determined whether or not the flag f is “f = 2”. Since the flag f in the initial stage of driving is “f = 0”, the computer 40 sets the flag S. 69 was determined to be no, and S. Move to 70. S. At 70, the computer 40 determines whether or not the flag f is “f = 1”. Since the flag f in the initial stage of driving is “f = 0”, the computer 40 sets the flag S. 70, the determination was no. It moves to 71. S. At 71, the computer 40 drives the drive cylinder 39 to rotate the impact plate 37 in the direction in which the gap 38 increases. Thereafter, the flag f is set to "f = 1" (S.72). And again, S.I. 65, and after a lapse of a unit time (for example, 30 minutes), the detection value Y
1, Y2, and Y3 are read, and the magnitude relationship between the weights of the crushed materials accumulated in the containers 19 to 21 is determined (S.6).
6). If the condition of the inequality (3) is not satisfied even if the size of the gap 38 is increased, the computer 40
Is S. The process proceeds to 67, and it is determined whether the flag E is "E = 3". Since the flag E remains “E = 0”, the computer 40 sets the S.D. 69, it is determined whether or not the flag f is “f = 2”.
If it is not "2", it is determined whether or not the flag f is "f = 1" (S.70). When the gap 38 of the impact plate 37 is adjusted, the flag f is set to “f = 1”. Go to 73. S. 73
Then, the computer 40 controls the motor drive circuit 47 so that the rotation speed of the primary crushing rotor 7 is reduced by a predetermined rotation speed. Then, the computer 40 sets the flag f to “f
= 2 "(S.74), and then again. Move to 65. S. In 65, the unit time (for example, 30
Minutes), the detected values Y1, Y2, and Y3 are read, and the magnitude relationship of the weight of the crushed materials accumulated in the containers 19 to 21 is determined (S.66). If the condition of the inequality (3) is not satisfied even when the rotation speed of the primary crushing rotor 7 is reduced, the computer 40 sets the S.V. The process proceeds to 67, and it is determined whether the flag E is "E = 3". Since the flag E remains “E = 0”, the computer 40 sets the S.D.
The flow shifts to 69, where it is determined whether the flag f is "f = 2" or not. When the rotation speed of the primary crushing rotor 7 is increased,
Since the flag f is set to “f = 2”, the computer 40 sets the S.F. 75, the motor drive circuit 48 is controlled so that the rotation speed of the secondary crushing rotor 11 is reduced by a predetermined rotation speed.
Control. Thereafter, the computer 40 sets the S.D. 76, the flag f is set to “f = 0”, and then the flag E
Is counted up to “E = E + 1” (S.77).

The computer 40 operates as follows. After the processing of 77,
S. 65, the detected values Y1, Y2, and Y3 are read to determine the magnitude relationship between the weights of the crushed materials accumulated in the containers 19 to 21. If the condition of the inequality (3) is not satisfied, the flag E Until S becomes “E = 3”.
65-S. 67, S.P. 69-S. Step 77 is repeated.

By the series of these processes, the gap 3 is adjusted so that the amount of the crushed material having the particle size belonging to rank C is maximized.
8, the rotation speed of the primary crushing rotor 7 and the rotation speed of the secondary crushing rotor 11 are automatically adjusted.

The set values XA, XB, XC, N1A,
N1B, N1C, N2A, N2B, and N2C are values obtained by trial and error through experiments, and mean values at which the amount of crushed material belonging to the rank is increased on average.

In the embodiment of the present invention described above, the weights of the containers 19 to 21 are simply compared by inequality, but the weight before the unit time has elapsed and the weight after the unit time have been subtracted for each container. Then, the weight increase speed per unit time is calculated, and the size of the gap 38 is adjusted according to the weight increase speed of each of the containers 19 to 21, and the rotation speed of the primary crushing rotor 7 and the rotation speed of the secondary crushing rotor 11 are adjusted. Adjustments may be made.

[0070]

According to the crushing device of the first and second aspects, crushed materials belonging to a rank of a desired particle size can be efficiently produced.

According to the crushing device of the third and fourth aspects,
Adjustment work efficiency can be improved.

According to the crushing device of the fifth aspect, crushed materials belonging to a rank having a desired particle size can be efficiently produced, and the efficiency of adjustment work can be improved.

[Brief description of the drawings]

FIG. 1 is a system diagram of a crushing device according to Embodiment 1 of the present invention.

FIG. 2 is a system diagram of a crushing apparatus according to Embodiment 2 of the present invention.

FIG. 3 is a block diagram for explaining control means of the crushing device shown in FIG.

FIG. 4 is an initial control flowchart of a control unit shown in FIG. 3;

FIG. 5 is a detailed flowchart of a rank A execution mode shown in FIG. 4;

FIG. 6 is a detailed flowchart of a rank B execution mode shown in FIG. 4;

FIG. 7 is a detailed flowchart of a rank C execution mode shown in FIG. 4;

[Explanation of symbols]

 5: Empty bottle (object to be crushed) 7: Rotor for primary crushing (primary crushing means) 11: Rotor for secondary crushing (secondary crushing means) 12: Particle size sorter

Claims (5)

[Claims] Claims: 1. A primary crushing means for primary crushing an object to be crushed and a secondary crushing means for secondary crushing of the crushed material in order to finely crush the crushed material primary crushed by the primary crushing means. , Out of the primary crushed material, the crushed material with a large particle size outside the standard and the crushed material with an appropriate particle size within the standard are selected and guided to the secondary crushing means. A crushing device characterized by being provided with a particle size sorter. 2. The crushing apparatus according to claim 1, further comprising a recirculation passage for recirculating the secondary crushed material toward the particle size selector. 3. A crushing apparatus for crushing an object to be crushed by applying an impact by rotation of a crushing rotor, wherein an impact plate for crushing the object to be crushed in cooperation with the crushing rotor is provided on the crushing rotor. The impact plate and the crushing rotor are provided so as to be movably provided with a gap in a rotation region, and to adjust the size of the particle size with the size of the gap and the rotation speed of the crushing rotor as parameters. A crushing device characterized by comprising control means for controlling. 4. The crushing rotor comprises a primary crushing rotor for primary crushing the object to be crushed and a secondary crushing rotor for secondary crushing the object to be crushed, and the impact plate is provided for the primary crushing. The control means is provided facing the rotation range of the crushing rotor, and the control means is configured to control the particle size of the crushed material using three of the size of the gap, the rotation speed of the primary crushing rotor, and the rotation speed of the secondary crushing rotor as parameters. The crushing apparatus according to claim 3, wherein the size of the diameter is adjusted. 5. A crushed material having a large particle size outside the standard and a crushed material having an appropriate particle size within the standard among the primary crushed crushed materials, and the crushed material having a large particle size outside the standard is secondarily crushed. The crushing apparatus according to claim 4, wherein a particle size sorter for guiding the crushing means is provided between the primary crushing rotor and the secondary crushing rotor.