JP6454293B2 - Sorting method and sorter for workpieces - Google Patents

Description

  The present invention relates to a method for separating an object to be processed and a sorter. More specifically, the present invention relates to a method for separating an object to be processed and a sorter for appropriately sieving a linear body contained in the object to be processed.

  Various industrial wastes are generally incinerated. Incinerated products after incineration have been disposed of in landfills in the past, but in recent years, iron has been recovered from incinerated materials and reused as raw materials for cement. It has been. Specifically, the iron contained in the incinerated material is collected by a magnetic separator, removed from the lump such as casting and filler elements contained in the incinerated material, and further sieved by a sieving machine to be used as a raw material for cement. Has been. Such incinerated waste treatment systems are disclosed in, for example, Patent Documents 1 and 2.

  A cylindrical rotary sorter (Trommel type sorter) is known as a device for separating ingots and others as pretreatment of incineration. As shown in Patent Document 3, for example, a trommel type sorter is configured to include a cylindrical rotating drum having a large number of sieve holes perforated on one peripheral surface, and one end of the rotating drum. An inlet is provided on the side, an outlet on the opposite side is provided with an outlet, and the inlet is positioned higher than the outlet. Then, the incinerated material, which is the object to be processed, which is input from the input port, is rotated by rotating the rotating drum, and the granular material having a size smaller than the sieve hole is dropped through the sieve hole to thereby remove the granular material and the sieve hole. The mass that cannot pass is sieved. In addition, the size of the granular material to be sieved should be adjusted by forming the sieve holes so that the upstream side close to the inlet side is small in size and the downstream side is different in size, such as a large size. Some have made it possible.

JP 2013-138975 A JP 2009-056362 A JP-A-10-272424

  Among the incineration products incinerated industrial waste such as OA equipment, there are, for example, string-shaped wires and elongated metal rods such as roller shafts used for toner in copying machines or printing machines. May be included. Wires and slender bar-like objects may pass through the sieve holes of the trommel type sorter vertically, and may be mixed into the under sieve which should not be included. The sieved material is further subjected to secondary sorting by a vibrating screen (vibrating screen) to be used as a cement raw material. If there are many rod-shaped items in the secondary sorting, it will not only take time to remove but also vibrate. This is not preferable because it may cause failure of the sieve and may be mixed into the cement raw material that is the final processed product.

  Therefore, as a result of intensive studies by the inventor of the present application, a non-porous portion without a sieve hole is provided in a predetermined range from the charging port for charging the incinerated material provided in the hollow cylindrical body of the trommel type sorter. As a result, it was found that the presence of linear bodies in the under sieve was significantly reduced. This is because the processed material is agitated by rotation in the portion without the sieve holes, and the linear bodies gradually align in the horizontal direction and reach the portion with the sieve holes in a state where they are lying down to some extent. It is thought that it does not pass vertically.

  Therefore, in view of the above examination results, an object of the present invention is to provide a separation method and a sorter for a workpiece, and specifically, sorting or sieving a workpiece by a cylindrical rotary sorter. In the separation, it is possible to prevent the rod-like linear body having a size longer than the sieve hole of the cylindrical rotary sorter from slipping vertically and to sort the workpiece properly. An object is to provide a sorting method and a sorter.

In order to solve the above-mentioned problem, the present invention according to claim 1 is a hollow cylindrical body in which a workpiece including a rod-like or string-like linear body is rotatably arranged, and the workpiece Without a sieve hole having a plurality of long plate-like lifters erected at a predetermined interval so that the top portion is directed to the center side of the cylindrical body upstream of a predetermined range from the charging port for charging And a perforated portion without a lifter having a plurality of sieve holes on the downstream side, and having a cylindrical body in which the length of the non-perforated portion and the length of the perforated portion are the same by sieving the sorter, it said as a substantially laid lying state of the linear body contained in the object to be treated by being stirred splashed said object to be processed by a long plate of the lifter sieve powder adhered to the mass contained in the processing object is prevented from passing through the holes in the vertical direction And separating the granular material as an under-sieving material while preventing the linear body from being mixed in the perforated portion, and the linear body and the massive material as an over-sieving material. Provided is a method for separating an object to be processed, which is characterized by sieving .

In order to solve the above-mentioned problem, the present invention described in claim 2 is the method for separating an object to be processed according to claim 1 , wherein a granular material which is an undersieved material sieved in the perforated portion is used. Further, it is characterized by sieving into a vibrating sieve top and a vibrating sieve bottom with a vibrating sieve.

In order to solve the above-mentioned problem, the present invention described in claim 3 is the method for separating an object to be processed according to claim 2 , wherein the sieved material screened by the rotary sorter, and The material on the vibration sieve screened by the vibration sieve is further separated into a magnetic material and the other by a magnetic separator.

In order to solve the above-mentioned problem, the present invention according to claim 4 is the method for separating an object to be processed according to any one of claims 1 to 3 , wherein the object to be processed is an incineration residue of industrial waste. It is characterized by being.

In order to solve the above-mentioned problem, the present invention according to claim 5 is the method for separating an object to be processed according to claim 2 , wherein the object to be processed is an incineration residue of industrial waste, and the vibrating sieve The material is used as a raw material for cement.

In order to solve the above-mentioned problem, the present invention described in claim 6 is a rotary sorter in which a plurality of sieve holes are provided on a peripheral surface of a hollow cylindrical body that is rotatably arranged. , a plurality of long plate in which the top portion on the upstream side of the predetermined range from the inlet for introducing the object to be processed is erected at a predetermined interval so as toward the center side of the tubular body provided in the cylindrical body A non-porous portion having a sieve lift without a sieve hole and a perforated portion having no sieve lift having a plurality of sieve holes on the downstream side, and the length of the non-porous portion and the length of the porous portion are It is characterized by being the same .

  According to the method for separating objects to be processed and the sorter according to the present invention, there is no hole without a sieve hole on the upstream side of a predetermined range from the inlet for throwing the object into the cylinder of the rotary sorter. Since the portion is provided, the rod-like or string-like linear body included in the object to be processed is prevented from passing through the sieve hole provided in the cylindrical body, and the linear body may be mixed into the sieving material. There is no effect.

  In addition, according to the method for separating objects to be processed and the sorter according to the present invention, the removal work of the linear body when performing the separation process of the incineration residue of the industrial waste is greatly reduced, and the linear body There is an effect that it is possible to provide a cement raw material free from contamination.

It is a front view which shows the sorter of the to-be-processed object which concerns on this invention. It is a side view of the sorter shown in FIG. It is a block diagram which shows the processing system of the to-be-processed object using the sorter which concerns on this invention. FIG. 4 is a block diagram of the processing stem shown in FIG. 3. It is a flowchart which shows the classification method of the to-be-processed object which concerns on this invention.

[Configuration of sorter for processed material]
The processing object sorting method and sorter according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a front view showing a sorter for processing objects according to the present invention, and FIG. 2 is a side view of the sorter in FIG. The sorter 1 for processing objects is a so-called trommel type, and includes a substantially cylindrical tube 2. The cylindrical body 2 generally has a non-hole portion 20 having no sieve holes, a plurality of sieve holes 3 and 3 and a perforated portion 21 continuing to the non-hole portions 20, and a motor (not shown) is used as a power source. Thus, it is arranged to be able to rotate forward and reverse. The large number of sieve holes 3 and 3 are formed at regular intervals on the entire circumferential surface of the perforated portion 21 that becomes the sieve surface. In addition, although the shape of each sieve hole 3 and 3 is circular shape, it is not restricted to this. Further, a plurality of (here, nine) long plate-like lifters 4, 4 erected on the inner peripheral surface at a predetermined interval so that the top portion is directed toward the center of the cylindrical body 2 inside the non-hole portion 20. Is provided. An inlet 5A is provided on the upstream side (left side in FIG. 1) of the cylindrical body 2 and the workpiece 2 is input into the cylindrical body 2. On the downstream side of the cylindrical body 2 (right side in FIG. 1), a sieve is provided. A discharge port 5 </ b> B for discharging the object is provided. Further, a plurality of frame members 6 and 6 are attached along the longitudinal direction of the cylindrical body 2 along the circumferential surface to reinforce the cylindrical body 2.

  The cylindrical body 2 is processed into a two-layered cylindrical shape of an outer layer 2A and an inner layer 2B with a metal material such as a steel plate having wear resistance, corrosion resistance, strength, etc. Both the portion 21 and the non-hole portion 20 have the same length (for example, 120 cm). The perforated part 21 and the non-perforated part 20 are integrally connected by welding or the like so as to be formed by one rotating body. Although the diameter size of the sieve holes 3 and 3 provided in the perforated part 21 is appropriately set according to the size of the object to be processed, it is set to φ30 mm in this embodiment.

  On the other hand, the non-perforated portion 20 is not formed with the sieve holes 3 and 3, and the lifters 4 and 4 are provided on the inner surface thereof as described above. , 22 is supported on one side. The object to be processed put into the cylindrical body 2 is scraped up by the lifters 4 and 4 and appropriately stirred, so that the particulate matter adhering to the lump contained in the object to be processed is shaken off. In the hole portion 21, the granular material is sieved as an under-sieving material, and the lump can be selected as an over-sieving material. Further, the cylindrical body 2 is positioned on the inlet 5A side higher than the outlet 5B side with respect to the horizontal direction. For example, the cylindrical body 2 is installed with an inclination of 3 to 10 °, and the object to be processed in the cylindrical body 2 is disposed. It is easy to flow down.

  The frame members 6 and 6 are manufactured using, for example, U-shaped steel, and three in total are used in this embodiment. The frame members 6 and 6 are disposed between the two layers of the cylindrical body 2 at intervals of 120 ° with respect to the rotation center. The lengths of the frame members 6 and 6 are slightly shorter than the length of the non-hole portion 20.

[Configuration Example of Processing System Using Sorter 1]
Next, a configuration example of a processing system using the sorter 1 according to the present invention will be described. FIG. 3 is a configuration diagram showing a processing system for an object to be processed using the sorter according to the present invention, and FIG. 4 is a block diagram of the processing system shown in FIG.

  The processing system 100 for processing objects generally includes the processing object 7 (for example, wastes such as various OA equipments) loaded on the truck T or the like that has moved onto the platform PF that becomes the unloading space of the truck T or the like. Hopper 8 into which the incineration residue) is charged, a conveyor 9 that conveys the workpiece 7 supplied from the hopper 8, the above-described sorter 1, and the sorter 1 by treating the workpiece 7 with the sorter 1. A hopper 10 that receives the sieved material 7a that is a sieved powder or less of a predetermined size, a conveyor 11 that transfers the sieved material 7b that is a lump or more of a predetermined size that has been sieved by the sorter 1, and A magnetic separator 12 installed on the upper part of the conveyor 11 for sorting (removing) iron (ferromagnetic product 14 and weak magnetic product 13 to be iron scrap 18 or the like) from the sieved material 7b being transferred by a magnetic force. And a crusher 15a for pulverizing the weak magnetic product 13 selected by the magnetic separator 12a to a predetermined size or less, and applying a vibration to the sieving material 7a cut out from the hopper 10 so that a product of a predetermined size or less is a fuel 17 is provided with a vibrating sieve 16 for sorting. Then, the crushing machine 15b that further crushes the vibrating sieve top 7d that is over the predetermined size that has been selected by the vibrating sieve machine 16, and the metal piece is selected from the vibrating sieve top 7d that is crushed by the crushing machine 15b. The magnetic separator 12b is further provided.

[Separation method of workpiece and operation of sorter]
Next, the operation and sorting method of the sorter 1 according to the present invention and the operation of the processing system 100 will be described with reference to FIGS. FIG. 5 is a flowchart showing a method for separating workpieces according to the present invention.

  An object to be processed, that is, an object to be processed 7 is loaded on the truck T, reaches the platform PF, and is transferred to the hopper 8 by an operator. Then, the workpiece 7 is transferred from the hopper 8 to the conveyor 9 and is put into the sorter 1 (step S1). The sorter 1 sifts the workpiece 7 according to the preset hole size of the perforated part 21. The sorter 1 is operated before (or immediately after) the workpiece 7 is charged.

  As the cylinder 2 of the sorter 1 rotates, the workpiece 7 put in the non-hole portion 20 is appropriately stirred by the lifters 4 and 4 provided in the non-hole portion 20 (step S2). ). And the to-be-processed object 7 flows down gradually in the cylinder 2 toward the discharge port 5B side while being rotated and stirred by the lifters 4 and 4, and finally reaches the perforated portion 21. Then, in the process of passing through the perforated portion 21, as shown in FIG. 4, in the object to be processed 7, the granular material having a size smaller than the diameter of the sieve holes 3, 3 falls into the hopper 10 from the sieve holes 3, 3. Then, sieving is performed (step S2).

  In the sorting by the sorting machine 1, the non-hole portion 20 is provided between the inlet 5 </ b> A and the perforated portion 21, so that the workpiece 7 put into the cylinder 2 of the sorting machine 1 is actually By sufficiently stirring in the non-porous portion 20 before reaching the perforated portion 21 where sieving is performed, the particulate matter adhering to the large lump is separated from the lump, and a string-like wire or elongated The linear body 30 such as a rod-like object gradually falls in a lateral state and moves to the perforated portion 21 side. Thereby, since the linear body 30 does not pass through the sieve holes 3 and 3 vertically and falls as in the conventional case, the linear body 30 is reliably prevented from being mixed into the under sieve 7a. Moreover, since the granular material is also separated from the lump by stirring, the recovery rate of the under-sieved material 7a is improved as compared with the conventional case. The unsieved material 7 a collected in the hopper 10 by the sorter 1 is further sorted by the vibrating sieve 16. And the vibration under sieve 7c which is the vibration sieve under of the predetermined size or less sorted with the vibration sieve machine 16 is utilized as a cement material as the fuel shell product 17 (step S3).

  On the other hand, the sieved material 7b having a predetermined size (for example, 30 to 40 mm) or more discharged from the discharge port 5B of the sorter 1 is conveyed directly below the magnetic separator 12a by the conveyor 11, and subjected to a magnetic separation process by the magnetic separator 12a. The magnetic product 14 and the weak magnetic product 13 are selected (step S4). The ferromagnetic product 14 selected by the magnetic separator 12a is collected as iron scrap 18. Further, the weak magnetic product 13 is further pulverized to a predetermined size or less by the crusher 15a and collected as the mixed metal 19a (step S5). Then, the vibration sieve top 7d which is the vibration sieve over sorted by the vibration sieve 16 is crushed by the crusher 15b (step S6), and further sorted into the metal piece 19b and the fuel shell 7e by the magnetic separator 12b ( Step S7). The fuel shell 7e is used as a cement material as the fuel shell product 17 in the same manner as the vibrating sieve 7c, and the metal piece 19 is recovered as a mixed metal 19b.

[Effect of the embodiment]
According to the method for separating an object to be processed according to the present embodiment, since the non-porous portion 20 is provided in the cylindrical body 2 of the trommel type sorter 1, the linear body 30 is gradually overturned by the non-porous portion 20. And moves to the perforated portion 21, so that the linear body 30 is prevented from falling through the sieve holes 3 and 3 vertically as in the conventional case, and the linear body 30 is mixed into the under sieve 7 a. This has the effect of reliably preventing this.

  According to the method for separating the object to be processed according to the present embodiment, the lifter 4 is provided in the non-porous part 20, so that the non-porous part 20 agitates the granular material adhering to the mass of the object to be processed. After the separation, in the perforated portion 21, there is an effect that the granular material can be sieved as the under sieve 7a and the lump can be sieved as the above sieve 7b.

  In addition, according to the method for separating an object to be processed according to the present embodiment, the granular material selected by the sorting machine 1 is further sorted by the vibrating sieve 16, so that it is used as a uniform and high-quality cement material. There is an effect that can be done.

  As described above, the preferred embodiment of the present invention has been described in detail. However, the present invention is not limited to the specific embodiment, and within the scope of the gist of the present invention described in the claims, Needless to say, various modifications and changes are possible.

  In the embodiment described above, industrial waste containing a large amount of metal as the object to be processed is targeted, but other waste including rod-like linear bodies, for example, crushed metal, contaminated soil, gravel crushed stone, incineration ash The present invention can also be applied to the purpose of removing foreign matters.

DESCRIPTION OF SYMBOLS 1 Sorting machine 2 Cylindrical body 2A Outer layer 2B Inner layer 3 Sieve hole 4 Lifter 5A Input port 5B Outlet port 6 Frame material 7 To-be-processed object 7a Under sieve object 7b Above sieve object 7c Vibrating article 7d Vibrating article 8 Hopper 9 Conveyor DESCRIPTION OF SYMBOLS 10 Hopper 11 Conveyor 12a Magnetic separator 12b Magnetic separator 13 Weak magnetic article 14 Ferromagnetic article 15a Crusher 15b Crusher 16 Vibrating sieve machine 17 Flame shell product 18 Iron scrap 19a Mix metal 19b Mix metal 20 Non-perforated part 21 Perforated part 22 Support plate 30 linear body 100 treatment system

Claims (6)

A hollow cylindrical body that is rotatably arranged with an object to be processed including a rod-like or string-like linear body, and is a top portion upstream of a predetermined range from an inlet for introducing the object to be processed. without the lifter having but a nonporous portion without Furuiana having a plurality of long plate-shaped lifter erected at predetermined intervals so as toward the center side of the cylindrical body, a plurality of sieve holes to the downstream side A perforated part is provided , and the length of the non-perforated part is the same as the length of the perforated part by sieving with a rotary sorter equipped with a cylindrical body . the processing object is prevented from passing through the sieve holes are the the substantially laid lying state of the linear body contained in the object to be processed by the being stirred object to be processed is pushed up in the vertical direction The particulate matter adhering to the lump contained in is separated, and the linear body is mixed in the perforated portion. Fractionation method of the object that the powder granules while preventing with sieved as undersize product, the linear body and the lumps characterized by sieving the sieve quality goods to. A method for separating an object to be processed according to claim 1 ,
A method for separating an object to be treated, wherein the granular material, which is an under-sieved material sieved in the perforated portion, is further sieved into a vibrating sieve top and a vibrating sieve bottom using a vibrating sieve. A method for separating an object to be processed according to claim 2 ,
A sieved material screened by the rotary sorter, and a vibrating screened material screened by the vibrating sieve are further separated into a magnetic material and other materials by a magnetic separator. Sorting method. A method for separating an object to be processed according to any one of claims 1 to 3 ,
The method for separating objects to be processed, wherein the object to be processed is an incineration residue of industrial waste. A method for separating an object to be processed according to claim 2 ,
The method for separating a material to be treated is characterized in that the material to be treated is an incineration residue of industrial waste, and the vibrating sieve is used as a raw material for cement. In a rotary sorter provided with a plurality of sieve holes on the peripheral surface of a hollow cylindrical body arranged rotatably,
The cylinder is
A plurality of long plate which is erected at a predetermined interval top upstream of a predetermined range from the inlet for introducing the object to be processed provided on the tubular body so as toward the center side of the cylindrical body A non-porous portion having no lifter having a lifter and a perforated portion having no lifter having a plurality of sieve holes on the downstream side are provided, and the length of the nonporous portion is the same as the length of the perforated portion. A sorter characterized by that .

Images