KR20210016961A - Trommel screen - Google Patents

Abstract

The present invention relates to a trommel screen for drying organic waste, etc. and classifying the dried organic waste, etc. according to particle size by a sorting method using a double punched net drum. The present invention implements a novel trommel screen which is capable of drying organic waste, and classifying, step by step, dried organic waste with coarse particles and dried organic waste with fine particles contained in the dried organic waste according to particle size by using the double punched net drum, and in which baffles for striking the dried organic waste and transferring the same are installed in an inner punched net drum and an outer punched net drum. Accordingly, the trommel screen of the present invention is capable of increasing a daily treatment capacity, extending the durability life of a facility, efficiently operating the facility such as maintenance and repair, improving the efficiency of the operation of screening dried organic waste, and further improving the screening efficiency by inducing a friction motion by striking with the baffles.

Description

Trommel screen {Trommel screen}

The present invention relates to a trommel sorting machine, and more particularly, to a trommel sorting machine that sorts dry organic wastes according to particle size by a sorting method using a double perforated drum after drying organic wastes.

In general, some of the various general waste and landfill waste generated in industrial sites are incinerated, and most of the rest is completely buried in the ground.

However, landfilling of waste has not been a fundamental solution, and landfills that can landfill the ever-increasing amount of waste are almost saturated, and they remain almost permanent pollutants without rot or decomposition due to the landfill. It is a cause of destruction of the natural environment.

In addition, until now, wastes generated and brought in at home and industrial sites are not classified into household wastes, construction wastes, organic wastes, and domestic wastes according to their type, but incineration and landfilling, so odor, leachate, and dust contained in wastes There is also a phenomenon that the environment is polluted around the landfill site by pollutants such as.

As an example, about 30-40% of the total amount of garbage currently discharged by households is food waste.

In order to treat such food waste, conventionally, it was treated by underground reclamation, ocean dumping, or incineration.

However, in the case of underground reclamation, there is a problem of securing a landfill site, soil pollution and groundwater contamination by leachate during reclamation, fish death, red tide, and marine pollution occur during ocean dumping, and odor and dust during incineration. Due to the occurrence of serious air pollution, living areas and natural environments are greatly threatened.

In order to solve these problems, a lot of processes have been developed to process food waste and recycle it as feed or fertilizer.In the conventional food waste treatment process, after collecting food waste at homes and restaurants, foreign substances in the collected food waste A method of removing, crushing and pulverizing finely, drying and fermenting at room temperature is widely used.

When organic waste such as food waste is dried and then recycled as feed for livestock or compost for agricultural crops, plastics, wooden chopsticks, spoons, etc. mixed in the dry organic waste should be selected.

Currently, the sorting of foreign substances such as vinyls, wooden chopsticks, spoons, etc. is usually carried out by the operator's manual labor, and if foreign substances are sorted by hand in this way, it is difficult to improve productivity due to poor work efficiency, as well as labor costs. There are a number of problems, such as an increase in the cost of the product and a decrease in market competitiveness, and the worker's health cannot be protected because the worker is exposed to odor.

In addition, general vibration sorting machines block the perforated net of the vibrating sorter due to vinyl and fibrous materials (grass roots, etc.), yarn tissues, etc., reducing the sorting ability, and organic materials such as bone fragments that can be used as feed materials are also used as incineration waste. As the amount of sorting waste increases due to separation, there is a disadvantage that it must be incinerated at high cost.

On the other hand, a trommel screen is a particle size sorting device using a rotating drum equipped with a sorting net, and a perforated net is formed in a large cylinder to sort the input material according to the particle size.

This trommel sorting machine consists of a cylindrical screen in various diameters and can sort inputs by particle size, and several blades installed inside help smash/crush bags and large items. It plays the role of maximizing the sorting efficiency of each sorter by sorting and inserting only the appropriate standard.

In the present invention, a trommel sorter with improved structure and performance of Korean Patent Registration No. 10-1940451 "Dried Organic Waste Sorting Machine" based on the sorting method of the trommel sorter as described above is an object of creation.

Korean Patent Registration No. 10-1252271 Korean Patent Registration No. 10-1940451 Korean Patent Application Publication No. 10-2017-0090011 Korean Utility Model Registration No. 20-0255183

Therefore, the present invention has been devised in consideration of the above, and after drying treatment of organic waste, using a double perforated mesh drum to granulate dry organic waste of coarse particles as well as dry organic waste of fine particles contained in the dried organic waste. The daily treatment capacity is increased by implementing a new type of trommel sorter with baffles that strikes and transports dry organic waste to the inner perforated net drum and outer perforated net drum. In addition to extending the durable life of the facility, it can be operated efficiently, such as maintenance and repair, and the efficiency of sorting dry organic waste can be improved, while sorting by inducing frictional motion caused by the baffle strike. An object thereof is to provide a trommel sorting machine that can further improve efficiency.

In order to achieve the above object, the trommel separator provided by the present invention has the following characteristics.

The trommel sorter is installed in a structure supported on the frame at both ends, and a screw feeder that pushes dry organic waste forward, a screw feeder driving part for rotation of the screw feeder, and an inlet and outlet for input and discharge of dry organic waste (14), a pipe feeder disposed concentrically around the outer circumference of the rear end of the screw feeder and supported on the frame, and a first roll concentrically disposed around the outer circumference of the screw feeder and the pipe feeder. In addition to being installed in a structure that is supported at both ends of the support device and the screw feeder, it has a first outlet at the tip end, and is continuously connected along the length of the drum and at the same time, a plurality of internal perforated nets arranged at regular intervals along the circumferential direction of the drum. Baffles and inner perforated net drum An inner perforated net drum for primary sorting of dry organic waste and an inner perforated net drum driving part for rotation of the inner perforated net drum, and an inner perforated net drum driving part for rotation of the inner perforated net drum, which has an outer baffle, It is installed in a structure that is supported at both ends of the two-roll support device, and has a second outlet at the tip end, and is continuously connected along the length of the drum, while at the same time, a plurality of external perforated net drum internal baffles are arranged at regular intervals along the drum circumferential direction. The outer perforated net drum for secondary sorting of dry organic waste while having a relatively large diameter compared to the inner perforated net drum while having a relatively small hole size compared to the inner perforated net drum, and an outer perforated net drum for rotation of the outer perforated net drum. It is characterized by including a driving unit.

Here, the inner perforated net drum inner baffle and the inner perforated net drum outer baffle of the inner perforated net drum and the outer perforated net drum inner baffle of the outer perforated net drum form a straight line parallel along the length of the drum or a spiral trajectory along the length of the drum. Alternatively, the end may be formed in an arc shape and bent.

In addition, the trommel sorting machine is disposed in parallel at the bottom of the outer perforated net drum and installed at both ends of the frame, and further includes a screw conveying device and a screw conveying device driving unit for transferring sorting waste through the external perforated drum. can do.

In addition, a discharge chute may be installed at the front end of the inner perforated net drum and the outer perforated net drum, and the sorting waste discharged from the first outlet of the inner perforated net drum and the second outlet of the outer perforated net drum are divided into Guiding partition plates may be installed.

The trommel sorter provided by the present invention has the following effects.

First, by applying a method of sorting dry organic waste in three stages according to size using a double perforated net drum in the form of a combination of an inner perforated net drum and an outer perforated net drum, the daily treatment capacity related to the dry organic waste sorting operation can be increased. It is possible to operate the facility efficiently, not only extending the durability life of the facility, but also facilitating the maintenance and repair of the facility, and improves the overall efficiency of sorting dry organic waste. It works.

Secondly, the perforated net is widely used when separating a large particle size by attaching a flat iron type baffle to the inside of the trommel's first step internal perforated net drum, and attaching a flat iron type baffle to the outside to hit the outer perforated net drum when rotating backwards. While there is an effect to increase the sorting efficiency by inducing the frictional motion by the trommel, a baffle in the form of a flat iron is attached to the inside of the second-stage outer perforated net drum of Trommel, and the screening efficiency is rotated in reverse with the outer baffle of the inner perforated net drum. There is one effect that can increase.

Third, in the case of baffles attached to the inside and outside of the inner perforated net drum, and inside the outer perforated net drum, by applying various types of baffles, for example, a baffle having a spiral structure, a baffle having a partially curved rear end, etc. By applying various types of materials, as well as improving the transfer efficiency of the dried organic waste, there is an effect of increasing the sorting ability of the sorter as the dried organic waste is sorted in a stagnant state in some sections.

1 is a front view showing a trommel sorter according to an embodiment of the present invention
Figure 2 is a side view showing a trommel sorter according to an embodiment of the present invention
3 is a front view and a side view of an inner perforated net drum and an outer perforated net drum of a trommel sorting machine according to an embodiment of the present invention.
4A and 4B are perspective views illustrating an example of an inner perforated net drum and an outer perforated net drum in a trommel sorting machine according to an embodiment of the present invention.
5A and 5B are perspective views illustrating another example of an inner perforated net drum and an outer perforated net drum in the trommel sorting machine according to an embodiment of the present invention.
6A and 6B are perspective views illustrating still another example of an inner perforated net drum and an outer perforated net drum in the trommel sorting machine according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

In the present invention, the rear side defines the place where the dry organic waste is input, and the front side defines the place where the sorting waste is discharged, based on the direction in which the dry organic waste proceeds, and the left side is the front side and the right side is the right side. Each is defined backwards.

1 is a front view showing a trommel sorter according to an embodiment of the present invention, Figure 2 is a side view showing a trommel sorter according to an embodiment of the present invention, Figure 3 is a trommel sorter according to an embodiment of the present invention The front and side views of the inner perforated net drum and the outer perforated net drum of the Rommel sorting machine.

As shown in Figs. 1 to 3, the trommel sorter includes a frame 10 as a means for supporting equipment and securing movement of workers.

The frame 10 is in the form of a beam structure with a certain height, and facilities such as a perforated net drum are installed at the upper end of the frame 10, and a scaffolding that can be carried by an operator for inspection, repair, operation, etc. Not shown), as well as stairs (not shown), handrails (not shown), etc. can be provided.

In addition, the trommel sorter includes a screw feeder 11 and a screw feeder driving unit 12 as means for inputting and transferring dry organic waste.

The screw feeder 11 is composed of a shaft 11a and a screw 11b, and a bearing is mediated on the front and rear supports 30 installed at the upper end of the frame 10 through both ends of the shaft 11a. It is installed in a horizontally supported structure.

Here, the screw 11b of the screw feeder 11 is formed over a length corresponding to about 1/3 of the rear end of the total length of the shaft 11a, and the tip of the screw 11b formed in this way It can be located inside the rear end of the inner perforated drum (18).

That is, the front end portion of the screw 11b can be located only up to the inner rear end section of the inner perforated net drum 18.

The screw feeder driving unit 12 serves to provide power for the operation of the screw feeder 11, that is, the power for rotation of the shaft 11a.

To this end, a motor 12a is installed at the rear of the upper end of the frame 10, and a driving sprocket 12b is mounted on the shaft of the motor 12a installed in this way, and a driven sprocket 12c is installed at the rear end of the shaft 11a. ) Is mounted, and a chain 12d is connected between the driving sprocket 12b and the driven sprocket 12c at this time.

Accordingly, when the motor 12a is operated, the shaft 11a of the screw feeder 11 is rotated by the electric transmission between the driving sprocket 12b and the driven sprocket 12c, and then drying is organic by the screw 11b. As the waste is pushed out, it can be transported toward the inside of the perforated mesh drum.

In addition, the trommel separator includes a pipe feeder 15 as a means for supplying dry organic waste.

The pipe feeder 15 has a circular tube shape and is disposed concentrically around the outer periphery of the screw feeder 11 and the rear end on the rear support 30 on which the shaft 11a of the screw feeder 11 is supported. It is installed horizontally with a structure that is fixed through a part.

An inlet 13 for inputting dry organic waste is formed on one side of the outer peripheral surface of the rear end of the pipe feeder 15, and an outlet 14 in a shape corresponding to the total diameter of the pipe is formed at the front end for discharging dry organic waste. do.

Further, the front end of the pipe feeder 15 can also be located only up to the inner rear end section of the inner perforated net drum 18.

Accordingly, when dry organic waste is injected into the pipe feeder 15 through the inlet 13 of the pipe feeder 15, the dry organic waste at this time is a screw feeder located inside the pipe feeder 15. It is pushed forward by the screw 11b of (11), and continues to be discharged through the tip outlet 14 of the pipe feeder 15 so that it can be supplied to the inside of the inner perforated net drum 18.

In addition, the trommel separator includes an inner perforated net drum 18 and an inner perforated net drum driving unit 19 as a means for primary sorting of dry organic waste.

The internal perforated net drum 18 serves to first sort foreign substances, such as vinyls, wooden chopsticks, and spoons, that are relatively thick contained in the dry organic waste.

To this end, the inner perforated net drum 18 is in the form of a circular perforated drum in which a plurality of holes are formed on the circumferential surface, and is concentrically arranged around the outer periphery of the pipe feeder 15 including the screw feeder 11 In addition, a horizontal posture is taken parallel to this, and the rear end of the internal perforated net drum 18 taking a horizontal posture is supported by the first roll support device 16 installed on the upper end of the frame 10, and the front end is equipped with a bearing. It is installed in a structure that is coupled to the front end of the shaft 11a of the screw feeder 11 as a medium.

The inner perforated net drum 18 has a relatively small diameter compared to the outer perforated net drum 22 to be described later, and at the same time has a relatively large hole size compared to the outer perforated net drum 22, and coarse foreign matter can be selected.

At this time, the hole of the inner perforated net drum 18 may have a diameter of about 15 to 20 mm, preferably about 18 mm.

In addition, a first discharge port 17 is formed in a shape in which a part of the outer circumferential surface is cut in a square shape at the front end of the inner perforated net drum 18, and the sorting waste sorted primarily through the first discharge port 17 formed in this way is the drum Can be discharged outside.

The first roll support device 16 supporting the rear end of the inner perforated net drum 18 to support the rotation of the inner perforated net drum 18 is provided with a bracket 16a installed at the upper end of the frame 10 and thus installed. It consists of a roll (16b) that is installed to be rotatable freely on the bracket (16a) and in rolling contact with the end of the outer circumferential surface of the inner perforated net drum (18).

At this time, two brackets (16a) and rolls (16b) are provided, and each of the brackets (16a) and rolls (16b) supports both sides of the lower end in the width direction of the inner perforated net drum 18 while the inner perforated net drum 18 It plays a role of supporting so that it can rotate smoothly.

Here, the two brackets (16a) and the roll (16b) are arranged with a phase difference of about 90° with respect to the central axis of the inner perforated net drum 18 so as to stably support the inner perforated net drum 18. do.

The inner perforated net drum driving unit 19 serves to provide power for rotation of the inner perforated net drum 18.

To this end, a motor 19a is installed in the motor frame 31 which is positioned at the rear of the frame 10 and installed immediately below the upper end, and a driving sprocket 19b is provided on the shaft of the motor 19a installed in this way. At the same time, a driven sprocket 19c is mounted around the outer circumferential surface of the rear end of the inner perforated net drum 18, and a chain 19d is connected between the driving sprocket 19b and the driven sprocket 19c.

Accordingly, when the motor 19a is operated, the internal perforated net drum 18 is rotated by the electric transmission between the driving sprocket 19b and the driven sprocket 19c, and eventually contained in the rotating inner perforated net drum 18. Thick foreign substances in the dry organic waste can be first sorted through the hole.

In particular, the inner perforated net drum 18 includes an inner perforated net drum inner baffle 24a and an inner perforated net drum outer baffle 24b as a means to increase the efficiency of sorting dry organic waste.

The inner perforated net drum inner baffle (24a) and the inner perforated net drum outer baffle (24b) are in the form of a flat iron having a predetermined length, while maintaining a posture erected in the width direction of the flat iron on the inner and outer peripheral surfaces of the inner perforated net drum 18 It is fixedly installed in a way.

The inner perforated net drum inner baffle (24a) and the inner perforated net drum outer baffle (24b) are continuously connected along the longitudinal direction of the inner perforated net drum (18) at regular intervals while following the circumferential direction of the inner perforated net drum (18). It can be made of a plurality of arrangements.

For example, the inner perforated net drum inner baffle 24a may be made of four arranged at about 90° intervals along the circumferential direction of the inner perforated net drum 18, and the inner perforated net drum outer baffle 24b Even in the case of the inner perforated net drum 18 can be made of four arranged at about 90° intervals along the circumferential direction of the outer perforated net drum 18. At this time, the inner perforated net drum inner baffle 24a and the inner perforated net drum outer baffle 24b It is desirable to maintain a distance of about 45° from each other.

Here, the inner perforated net drum inner baffle 24a and the inner perforated net drum outer baffle 24b may be formed in a form of drawing various trajectories.

As an example, as shown in FIG. 4A, the inner perforated net drum inner baffle 24a and the inner perforated net drum outer baffle 24b may be formed in a straight line parallel to the longitudinal direction of the inner perforated net drum 18. .

As another example, as shown in FIG. 5A, the inner perforated net drum inner baffle 24a and the inner perforated net drum outer baffle 24b form a spiral trajectory along the longitudinal direction of the inner perforated net drum 18 and are connected in a continuous form. Can be achieved.

As another example, as shown in FIG. 6A, the inner perforated net drum inner baffle 24a and the inner perforated net drum outer baffle 24b are connected in a straight line parallel along the longitudinal direction of the inner perforated net drum 18, and then end. It can be formed in an arc shape and a curved shape, that is, an arc-shaped curved shape with the concave portion facing the rear side of the inner perforated net drum 18.

In this way, by having the inner perforated net drum inner baffle 24a and the inner perforated net drum outer baffle 24b, it is possible to widely utilize the entire perforated surface of the inner perforated net drum 18 when sorting out dry organic waste with a large particle size. , When the outer perforated net drum 22 rotates in reverse, the outer perforated net drum inner baffle 25 in the outer perforated net drum 22 and the inner perforated net drum outer baffle 24b of the inner perforated net drum 18 rotate in reverse. It is possible to induce frictional motion by blow, such as hitting the dried organic waste while showing movement, so it is possible to increase the sorting efficiency by releasing tangled or lumped dry organic waste.

In addition, when the inner perforated net drum inner baffle 24a and the inner perforated net drum outer baffle 24b form a spiral trajectory along the longitudinal direction of the inner perforated net drum 18 and are connected to each other, the dried organic waste is a spiral baffle. As it is guided along the line, it naturally proceeds to the front of the discharge port, so that the transfer efficiency of the dried organic waste can be improved.

In addition, the inner perforated net drum inner baffle (24a) and the inner perforated net drum outer baffle (24b) are connected in a straight line along the longitudinal direction of the inner perforated net drum 18, and the end portion is bent to form an arc shape. In the case where the dry organic waste is confined to the inside of the arc shape, it can be stagnated for a certain period of time, and the sorting process by rotating the drum continues even during this stagnation. When the waste proceeds forward as it is and is discharged, the efficiency of sorting dry organic waste can be relatively increased.

In addition, the trommel sorter includes an external perforated network drum 22 and an external perforated network drum driving unit 23 as a means for secondary sorting of dry organic waste.

The outer perforated net drum 22 serves to secondaryly sort the relatively thick foreign matters from the remaining sorting wastes after being first sorted by medium coarse foreign matter contained in the dry organic waste, for example, the inner perforated net drum 18. do.

To this end, the outer perforated net drum 22 is in the form of a circular perforated drum in which a number of holes are formed on the circumferential surface, and is arranged in a concentric circle around the outer periphery of the inner perforated net drum 18 and takes a horizontal posture parallel to this. In this way, the front end and the rear end of the external perforated net drum 22 taking a horizontal posture are installed in a structure supported by the second roll support device 20 installed at the front and rear sides of the upper end of the frame 10, respectively.

The outer perforated net drum 22 has a relatively large diameter compared to the inner perforated net drum 18, while having a relatively small hole size compared to the inner perforated net drum 22, and medium thick foreign matter can be selected.

At this time, the hole of the external perforated net drum 22 may have a diameter of about 5 to 10 mm, preferably about 8 mm.

By adopting a double perforated net consisting of a combination of the inner perforated net drum 18 and the outer perforated net drum 22, it is possible to improve the sorting and discharging capacity for each particle size.

That is, the inner perforated net drum 18 and the outer perforated net drum 22 are used to separate and discharge the material into a double structure, and the material having a large particle size and light weight is first sorted through the inner perforated net, and the outer perforated net is secondarily selected for each particle size. By proceeding, it is possible to secure an excellent sorting and discharging ability for dry organic waste.

In addition, a second discharge port 21 having a shape corresponding to the total diameter of the drum is formed at the front end of the external perforated network drum 22 for discharging the secondary sorted waste, and through the second discharge port 21 formed in this way. Secondary sorting waste can be discharged out of the drum.

In order to support the rotation of the external perforated mesh drum 22, the second roll support device 20 supporting the front and rear ends of the external perforated mesh drum 22 is similar to the bracket 20a installed at the upper end of the frame 10. It consists of a roll (20b) that is freely rotatably installed on the bracket (20a) to be installed and is in rolling contact with the end of the outer peripheral surface of the external perforated net drum (22).

At this time, four brackets (20a) and rolls (20b) are provided, and each of the brackets (20a) and rolls (20b) is provided at the front and rear ends of the outer perforated net drum 20 while supporting both sides of the lower end in the width direction. It serves to support the perforated net drum 22 so that it can rotate smoothly.

Here, the two brackets (20a) and the roll (20b) at the front and rear sides are arranged with a phase difference of about 90° with respect to the central axis of the outer perforated net drum 22 while stably maintaining the outer perforated net drum 22. You will be able to support it.

The external perforated net drum driving unit 23 serves to provide power for rotation of the external perforated net drum 22.

To this end, a motor 23a is installed in the motor frame 31 which is positioned at the rear of the frame 10 and installed just below the upper end, and a drive sprocket 23b is provided on the shaft of the motor 23a installed in this way. At the same time, the driven sprocket 23c is mounted around the outer peripheral surface of the rear end of the external perforated net drum 22, and a chain 23d is connected between the driving sprocket 23b and the driven sprocket 23c at this time.

Accordingly, when the motor 23a is operated, the external perforated net drum 23 is rotated by the electric transmission between the driving sprocket 23b and the driven sprocket 23c, and eventually contained in the rotating outer perforated net drum 23. Medium-sized foreign substances in the dry organic waste can be secondarily sorted through the hole.

At this time, the rotational direction of the outer perforated net drum 22 can be set to be opposite to each other with respect to the rotational direction of the inner perforated net drum 18, and thus the outer perforated net drum 22 and the inner perforated net drum 18 By rotating in the reverse direction, the primary sorting and secondary sorting ability of the perforated net drum can be further improved.

Particularly, the outer perforated net drum 22 includes an inner baffle 25 for the outer perforated net drum as a means to increase the efficiency of sorting dry organic waste.

The outer perforated net drum inner baffle 25 is a flat iron type having a predetermined length, and is fixedly installed by a method such as welding while maintaining an erect posture in the width direction of the inner circumferential surface of the outer perforated net drum 22.

The outer perforated net drum inner baffle 25 is continuously connected along the longitudinal direction of the outer perforated net drum 22, and at the same time, it can be made of a plurality of pieces arranged at regular intervals along the circumferential direction of the outer perforated net drum 22.

For example, the outer perforated net drum inner baffle 25 may be made of four arranged at about 90° intervals along the circumferential direction of the inner circumferential surface of the outer perforated net drum 22.

Here, the outer perforated net drum inner baffle 25 may be formed in a form of drawing various trajectories.

As an example, as shown in FIG. 4B, the outer perforated net drum inner baffle 25 may be formed in a straight line parallel to the longitudinal direction of the outer perforated net drum 22.

As another example, as shown in FIG. 5B, the inner baffle 25 of the outer perforated net drum may be formed in a continuous shape forming a spiral trajectory along the longitudinal direction of the outer perforated net drum 22.

As another example, as shown in FIG. 6B, the outer perforated net drum inner baffle 25 is connected in a straight line along the longitudinal direction of the outer perforated net drum 22, and the end portion forms an arc shape. It can be formed in a curved shape, that is, a curved shape in an arc shape with the concave portion facing the rear of the outer perforated drum 22.

In this way, by having the outer perforated net drum inner baffle 25, the entire perforated surface of the outer perforated net drum 22 can be widely utilized when sorting out dry organic waste with a large particle size. During reverse rotation, the inner perforated net drum outer baffle (24b) in the inner perforated net drum (18) and the outer perforated net drum inner baffle (25) of the outer perforated net drum (22) show a counter-rotation movement between them and strike dry organic waste. Since it can induce frictional motion by hitting, it is possible to increase the sorting efficiency, such as releasing tangled or clumped dry organic waste and scattering it.

And, when the outer perforated net drum inner baffle 25 forms a spiral trajectory along the longitudinal direction of the outer perforated net drum 22 and is formed in a continuous shape, the dry organic waste is guided along the spiral baffle, and the front side with the discharge port naturally. As it proceeds, it is possible to increase the transfer efficiency of the dried organic waste.

In addition, when the outer perforated net drum inner baffle 25 is connected in a straight line in parallel along the longitudinal direction of the outer perforated net drum 22 and the end portion is curved in an arc shape, dry organic waste As it is trapped inside this arc, it can be stagnated for a certain period of time, and the sorting process by rotating the drum continues even during this stagnation, so that the dried organic waste proceeds forward and escapes In contrast, the efficiency of sorting for dry organic waste can be relatively increased.

On the other hand, in the present invention, the dry organic waste naturally proceeds forward along the length of the inner and outer perforated nets without a separate transfer means while the screening is carried out through the inner and outer perforated nets, so that the sorting is performed while passing through the entire length of the inner and outer perforated nets. to provide.

To this end, in the case of the screw feeder 11 and the pipe feeder 15, and the inner perforated net drum 18 and the outer perforated net drum 22, which are stacked and combined in parallel concentric circles, the rear end thereof based on the horizontal line in the length direction of the drum. The side is inclined at a lower angle of about 5 to 10°, that is, the screw feeder 11, the pipe feeder 15, the inner perforated net drum 18, and the outer perforated net drum 22 are about 5 in front of the rear side. The inner perforated net drum 18 and the outer perforated net drum are combined with each other inward and outward with the tip of the screw 11b of the screw feeder 11 and the tip of the pipe feeder 15. It can only be located up to the inner rear end of (22).

Accordingly, the dry organic waste that is pushed by the screw feeder 11 after being supplied to the inside of the pipe feeder 15 is forcibly transferred only to the inner rear end of the inner perforated net drum 18 and the outer perforated net drum 22, and then The inner perforated net drum 18 and the outer perforated net drum 22, which are in an inclined posture, are transported forward naturally and can be sorted out, and in the end, the inner perforated net drum ( 18) and the entire length section of the external perforated network drum 22 can be used to sort dry organic waste, thereby improving the utilization efficiency and sorting ability of the perforated network drum.

In addition, the trommel sorter is a screw conveying device 26 as a means for transferring the tertiary sorting waste that has passed through the inner perforated net drum 18 and the outer perforated net drum 22, that is, the final sorting waste used as feed, to one side. ) And a screw conveying device driving unit 27.

The screw conveying device 26 is in the form of a circular or square elongated box having a screw shaft 26a rotating by motor power while being supported by a bearing at both ends, and a sorting waste outlet 26b at the front and bottom of the sorting waste conveying direction. It consists of a transfer case (26c) made of.

Here, the transfer case 26c is installed in a structure that is coupled in a horizontal posture to the case chute 32 formed at the lower end of the case 24, and the transfer case 26c installed in this way is a case chute over the entire length. The sorting waste of fine particles communicated with the case 32 and discharged through the case chute 32 can be put into the transfer case 26c as it is.

And, the screw shaft (26a) is horizontally disposed in parallel with the transfer case (26c) while crossing the inner center of the transfer case (26c), and in this arrangement, on the auxiliary frame (33) on the frame (10) It is installed in a structure that is supported at both ends by installed bearings.

The screw conveying device driving part 27 serves to provide power for the operation of the screw conveying device 26, that is, the power for rotating the screw shaft 26a.

To this end, a motor 27a is installed on the motor frame 31 on the frame 10, and a driving sprocket 27b is mounted on the shaft of the motor 27a installed in this way, and at the same time, at the front end of the screw shaft 26a. The driven sprocket 27c is mounted, and a chain 27d is connected between the driving sprocket 27b and the driven sprocket 27c at this time.

Accordingly, when the motor 27a is operated, the screw shaft 26a of the screw conveying device 26 is rotated by the electric transmission between the driving sprocket 27b and the driven sprocket 27c, and the screw shaft 26a is continuously rotated. As the sorting waste in the transfer case 26c is pushed by rotation, it can be discharged to the outside through the waste discharge port 26b.

In addition, the dry organic waste sorter separates and discharges the primary sorting waste (coarse particle foreign matter) and the secondary sorting waste (intermediate particle foreign matter) sorted by the inner perforated net drum 18 and the outer perforated net drum 22. It includes a discharge chute 28 as a possible means.

The discharge chute 28 is in the form of a housing that simultaneously surrounds the tip of the inner perforated net drum 18 and the outer perforated net drum 22, and is installed in a structure supported on the frame 10, and thus installed discharge chute 28 ), the first outlet 17 and the second outlet 21 in the inner perforated net drum 18 and the outer perforated net drum 22 are located, so that the first outlet 17 and the second outlet 21 ), the primary sorting waste and the primary sorting waste, each exiting, are sorted downward through the discharge chute 28 and can be discharged.

And, the inside of the discharge chute 28 is a partition plate that separates and guides the sorting waste discharged from the first outlet 17 of the inner perforated net drum 18 and the second outlet 21 of the outer perforated net drum 22. (29) is installed.

That is, the partition plate 29 is installed in a form that extends vertically downward from the boundary between the end of the second discharge port 21 and the outer circumference of the inner perforated net drum 22 to the bottom of the discharge chute inside the discharge chute 28 do.

Accordingly, the secondary sorting waste discharged from the second discharge port 21 on the rear and the primary sorting waste discharged from the first discharge port 17 on the front are separated and discharged by the partition plate 29, respectively, It is possible to more easily recover the sorting waste and the secondary sorting waste.

Therefore, looking at the operating state of the trommel sorter configured as described above is as follows.

First, the dried organic waste, which has been dried in an organic waste drying facility (not shown), is fed into the inlet 13 of the pipe feeder 15 through a conveyor (not shown).

Next, the dried organic waste injected into the pipe feeder 15 is pushed forward by the operation of the screw feeder 11 and exits the outlet 14 of the pipe feeder 15 to the inside of the perforated net drum 18. Is supplied.

Next, intermediate foreign matter and fine foreign matter in the dry organic waste that has entered the inside of the rotating inner perforated net drum 18 exit through the hole of the inner perforated net drum 18 and are supplied to the inside of the outer perforated net drum 22. The coarse foreign matter that has not passed through the hole of the internal perforated mesh drum 18, that is, the primary sorting waste, proceeds to the front of the internal perforated mesh drum 18 and then exits through the first discharge port 17, and continues to be discharged through the discharge chute ( 28) and can be recovered.

Next, fine foreign matter in the dry organic waste that has entered the inside of the rotating outer perforated net drum 22 escapes through the hole of the outer perforated net drum 22 and falls to the lower case chute 31, and in addition to this, the outer perforated net drum ( The intermediate foreign matter that did not exit the hole of 22), that is, the secondary sorting waste, proceeds to the front of the external perforated net drum 22, and then exits through the second outlet 21, and continues through the discharge chute 28. It can be discharged and recovered.

Next, the fine foreign matter that has fallen into the discharge chute 28 of the external perforated net drum 22, that is, the third sorting waste is introduced into the interior of the screw conveying device 26, and the third sorting waste thus introduced is the screw shaft 26a. After being transferred to the front by the rotation of, it is continuously discharged through the waste discharge port 26b in the transfer case 26c and can be recovered.

Therefore, the dried organic waste is collected by size, such as thick foreign matter, intermediate foreign matter, fine foreign matter, etc., passing through the inner double mesh drum 18 and the external double mesh drum 22 in sequence, and then collected and used for reclassification or feed. Can be.

In particular, when primary and secondary sorting by the inner perforated net drum 18 and the outer perforated net drum 22, the inner perforated net drum 18 includes an inner perforated net drum inner baffle 24a and an inner perforated net drum outer baffle 24b. In addition to having an outer perforated net drum 22, an outer perforated net drum is provided with an inner baffle 25, and these baffles are each or alternately alternated with each other by reverse rotation of the drum, causing interference with dry organic waste and hitting dry organic waste, thereby drying When sorting out organic wastes with a large particle size, the entire perforated surface of the inner and outer perforated mesh drums (18, 22) can be widely used, and the dry organic waste can cause frictional motion by hitting. It is possible to increase the efficiency.

As described above, in the present invention, using a double perforated net drum, fine particles that can be used as a sorting waste of coarse particles such as vinyls, wooden chopsticks, spoons, grass roots, etc., as well as a sorting waste of medium particles, and feed, etc., contained in the dry organic waste By providing a new organic waste sorting machine that can classify the sorting wastes in stages according to their size, it is possible to increase the efficiency of sorting operations, such as increasing the daily treatment capacity of the sorting equipment, and to extend the durability life of the sorting equipment. Not only can it be possible, but it is also possible to efficiently and economically operate sorting equipment such as maintenance and repair.

In addition, in the present invention, by providing a new trommel sorting machine equipped with a baffle that strikes and transports dry organic waste to the inner perforated net drum and the outer perforated net drum, it induces frictional motion by hitting the baffles, thereby improving the sorting efficiency. It can be further improved.

10: frame
11: screw feeder
12: screw feeder driving part
13: inlet
14: outlet
15: pipe feeder
16: first roll support device
17: first outlet
18: inner perforated net drum
19: internal perforated net drum drive unit
20: second roll support device
21: second outlet
22: external perforated net drum
23: external perforated net drum drive unit
24a: inner perforated net drum inner baffle
24b: inner perforated net drum outer baffle
25: outer perforated net drum inner baffle
26: screw transfer device
27: screw transfer device driving unit
28: discharge chute
29: partition plate
30: support
31: motor frame
32: case suit
33: auxiliary frame

Claims (6)

A screw feeder 11 for pushing the dry organic waste forward while being supported on the frame 10 at both ends and a screw feeder driving unit 12 for rotating the screw feeder 11;
A pipe that has an inlet 13 and an outlet 14 for input and discharge of dry organic waste, and is arranged concentrically around the outer circumference of the rear end of the screw feeder 11 and supported on the frame 10 Feeder 15;
The screw feeder 11 and the pipe feeder 15 are disposed concentrically around the outer circumference of the first roll support device 16 and the screw feeder 11, and are supported at both ends of the screw feeder 11 and the pipe feeder. (17), and has a plurality of inner perforated net drum inner baffles (24a) and inner perforated net drum outer baffles (24b) that are continuously connected along the length of the drum and are arranged at regular intervals along the circumferential direction of the drum. , An inner perforated net drum 18 for primary sorting of dry organic waste and an inner perforated net drum driving unit 19 for rotation of the inner perforated net drum 18;
It is disposed concentrically around the outer periphery of the inner perforated net drum 18 and is installed in a structure that is supported at both ends of the second roll support device 20, and has a second outlet 21 at the front end, along the length of the drum. It has a plurality of external perforated net drum inner baffles 25 that are continuously connected while going and are arranged at regular intervals along the circumferential direction of the drum, and have a relatively large diameter compared to the inner perforated net drum 18. ) Having a relatively small hole size compared to the external perforated net drum 22 for secondary sorting of dry organic waste and an external perforated net drum driving unit 23 for rotation of the outer perforated net drum 22;
Trommel sorter comprising a.
The method according to claim 1,
The inner perforated net drum inner baffle 24a and the inner perforated net drum outer baffle 24b of the inner perforated net drum 18 and the outer perforated net drum inner baffle 25 of the outer perforated net drum 22 are in a straight line form parallel along the length direction of the drum. Trommel sorter, characterized in that formed of.
The method according to claim 1,
The inner perforated net drum inner baffle 24a of the inner perforated net drum 18, the inner perforated net drum outer baffle 24b, and the outer perforated net drum inner baffle 25 of the outer perforated net drum 22 have a spiral trajectory along the length of the drum. Trommel sorting machine, characterized in that formed in a continuous shape forming a.
The method according to claim 1,
The inner perforated net drum inner baffle 24a and the inner perforated net drum outer baffle 24b of the inner perforated net drum 18 and the outer perforated net drum inner baffle 25 of the outer perforated net drum 22 have an arc shape at the end. Trommel sorting machine, characterized in that formed in a curved shape while forming.
The method according to claim 1,
A screw conveying device 26 and a screw that are disposed in parallel under the external perforated net drum 22 and installed in a structure supported on both ends of the frame 10 and transport the sorting waste through the external perforated net drum 22 Trommel sorter, characterized in that it further comprises a transfer device driving unit (27).
The method according to claim 1,
A discharge chute 28 is installed at the front ends of the inner perforated net drum 18 and the outer perforated net drum 22, and inside the discharge chute 28, the first outlet 17 and the outer side of the inner perforated net drum 18 A trommel sorting machine, characterized in that a partition plate (29) is installed to divide and guide the sorting waste discharged from the second outlet (21) of the perforated net drum (22).

Images