KR101005503B1 - Ragger and operating method of ragger - Google Patents

Abstract

The present invention relates to a technology for smooth operation of the lager device to remove the lengthy contaminants such as vinyl, bands, wires, strings in the pulp when reusing waste paper used in the paper mill.

The present invention is to install a sensor that can detect the tension in the guide roller in the direction of the inlet of the pulp, and to detect and control the tension applied to the contaminants so that the operation is always maintained in a constant tension, the foreign matter in the pulp Winding can smoothly remove the contaminants in the pulper by preventing the thickness, length and breakage, and provides a lager device and a method of operation that can improve the efficiency of operation by weight control through automatic control.

Paper mills, pulp, lager, contaminants, load cells

Description

Ragger and operating method of ragger

The present invention relates to a technology for smooth operation of the lager device to remove the lengthy contaminants such as vinyl, bands, wires, strings in the pulp when reusing waste paper used in the paper mill.

In general, the lagger device (Ragger) is a device that removes the foreign matter by using the properties of the string, textiles, film, etc. in the paper entangled by the circulation of the pulper.

Such a lager device is a facility required for the operation of a pulper that processes waste paper containing waste in a paper mill that produces industrial paper using waste paper as the main raw material.

Usually, the paper manufacturing process differs depending on paper gap, but the process of producing industrial paper, that is, corrugated paper, etc. is largely divided into raw material supply → composition (material) → grassland → logistics (shipment).

The composition step is a process of collecting recycled waste paper to prepare a raw material. The pulp is a process of mixing waste paper and water well to release it into small fiber particles, desorbing printed particles by selecting impurities, and dissociating raw materials mixed with water. Through refining process, it cuts and fiberizes to make raw materials suitable for making paper.

In the papermaking step, the product produced by dehydration, compression, drying, gloss, and winding is cut to a predetermined paper width, and then wound and rolled back to roll.

In this process, pulper is the first step in preparing paper, which filters out various debris contained in the paper, among which lager is a mechanical device that effectively removes long debris (vinyl, band, wire, string, etc.).

Conventional lager removes the twisting lmpurity, such as vinyl, bands, strings, wires, etc., contained in the highland by making a strand shape.

In such a driving method, when the string is thinly broken or too thick, the lager is not smoothly processed, which causes a problem of long contaminants.

Such a lager device and operation method are as follows.

1 and 2 are a front view and a side view showing a conventional lager apparatus.

As shown in Figs. 1 and 2, the lager device is a frame loaded with a worm reducer 10 and a brake motor 11, 12, the weight loaded roller 14 is operated by a cylinder (13) And a reel drum 15 for advancing the contaminants while rotating by a motor drive, and a guide roller 16 for guiding the contaminants on the pulper 16 side to the reel drum 15 side.

Here, reference numeral 17 denotes a wheel shaft, 18 a lifting arm, 19 a chain transmission, 20 an auxiliary roller, and 21 a controller.

Therefore, when the worm reducer 10 and the brake motor 11 are operated, the reel drum 15 rotates, and contaminants extending from the pulper 16 side pass through the guide roller 16 to the weight loaded roller ( 14) and to the cutting process via the reel drum 15

That is, contaminants formed in the impeller of the pulper are pulled out of the pulper by the reel drum and the weight loaded roller.

Here, the electric control for the lager is made into the relay which adjusts a time interval and operation time.

The motor interval and operation time can be changed by a time relay, so that the transport speed of the contaminants can be adjusted in a wide range, thereby allowing each driver to adapt and operate to each pulper production amount according to the dirt content in the highlands.

Rope hung by the anchor as a medium to form string-like impurities.

However, the conventional lager device has the following problems.

When the driver adapts to the pulper production according to the waste content of the waste paper (paper waste), the thickness of the contaminant string coming out from inside the pulper becomes thin or broken by the electric manual control method, or it is so thick that it adversely affects the pulper operation due to the slow speed. And problems with post-composition process and output, which can lead to production disruptions.

In other words, if the paper mill does not discharge the raw materials and contaminants from the pulp smoothly, problems occur in the manufacturing process, resulting in a decrease in efficiency, which affects the operation and quality of the pulp.

Accordingly, the present invention has been made in view of this point, the sensor is installed in the guide roller in the direction of the inlet of the pulper to detect the tension, and the constant tension is always maintained by detecting and controlling the tension applied to the contaminant By operating in the state, it is possible to smoothly remove the contaminants in the pulp by preventing the winding of foreign matter in the pulp, such as thickness, length, and breakage, and improve the efficiency of operation by the weight control through automatic control. The object is to provide a lager device and a method of operation.

In order to achieve the above object, the lager device provided by the present invention is a reel drum operated by a worm reducer and a brake motor to pull out a contaminant, a weight loaded roller which presses a concave while operating by a cylinder, and a pulper. And a guide roller installed at the inlet side to guide the contaminants, and mounted on the guide roller side to sense tension according to the weight of the contaminants, and receiving a signal from the load meter to operate the worm reducer and the brake motor. It further comprises a controller for controlling the output, it characterized in that the speed of the cladding is automatically adjusted according to the weight of the cladding.

Here, the load gauge is a form in which a load cell capable of detecting a change in the strain gauge to detect the magnitude of the force as an electrical signal is installed at the bottom of the bearing support at both ends of the guide roller to receive the load on the guide roller side. It is preferable to apply.

On the other hand, the lager device operating method provided by the present invention in order to achieve the above object by using a weight-loaded roller operated by a reel drum and a cylinder operated by a worm reducer and a brake motor, the inlet of the pulper A method of operating a lager device that removes long contaminants in a pulper while guiding contaminants by using guide rollers installed on the side. Automatically adjusts the speed of
Adjusting the time relay of the device when controlling the output of the controller in conjunction with the running time and interval time,
Output control of the controller is characterized in that made in the manner of adjusting the time relay of the device.

Here, the output control of the controller is made in a manner of adjusting the time relay of the device, in particular, the adjustment of the time relay of the device is preferably adjusted in conjunction with the running time and the interval time.

For example, if the speed of the device is too small when the time relay of the device is adjusted, increase the interval time without adjusting the running time.If the speed of the device is too large, reduce the interval time without adjusting the running time. It is desirable to adjust the time relay in the form of notes.

The lager device and the driving method provided in the present invention are simply used to remove long contaminants (vinyl, bands, wires, strings, etc.) based on the driver's experience, instead of the method of operating by time regardless of the ratio (concrete thickness). By installing a sensor (Load cell) that can be detected and electrically interlocked, by applying a method that can smoothly remove long contaminants in the pulper, there is an effect that can maximize the operating efficiency of the lager device.

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

3 and 4 are a front view and a plan view showing a lager apparatus according to an embodiment of the present invention.

As shown in Figure 3 and 4, the reel drum (15) is provided on the base of the frame structure 12, the reel drum (15) that serves to pull the contaminants, both ends of the reel drum (15) On one side, a worm reducer 10 and a brake motor 11, which are power sources for driving the drum, are installed, and a chain transmission 19 is connected between the worm reducer 10 side and the reel drum 15 side, so that the brake motor ( The reel drum 15 can be rotated by the operation of 11).

That is, a chain gear is mounted on the output shaft of the worm reducer 10 and one shaft of the reel drum 15, respectively, and a chain is connected between the two chain gears, so that the operation of the brake motor → deceleration of the worm reducer → chain transmission The reel drum can be rotated by.

In addition, a post 13 of the frame structure 12 is provided with a cylinder 13 having a rear end support structure, and a wheel shaft 17 having both ends of the support structure, and at this time, a rod and a wheel shaft 17 of the cylinder 13 at this time. A lifting arm 18 is connected between one end of the two ends of the weight loaded roller 14 between two parallel roller arms 24 extending from the wheel shaft 17.

That is, the weight loaded roller 14 is installed in a structure rotatably supported between both roller arms 24.

Accordingly, when the cylinder 13 is operated, the weight loaded roller 14 may be brought into contact with or dropped from the reel drum 15 while being lifted up or down by the rotation of the wheel shaft 17.

For example, the weight loaded roller 14 is connected to the cylinder 13 by a lifting arm 18, and the cylinder 13 receives compressed air and is regulated by a regulator in the FRL unit, thereby providing an air solenoid valve and an electric valve. The weight loaded roller 14 goes down when the select switch is turned on, and goes down when turned off.

In addition, the auxiliary roller 20 is disposed in front of the reel drum 15 can guide the progress of the contaminant proceeds to the subsequent cutting process.

In addition, the guide roller 16 is installed at both ends of the extended portion of the frame structure 12, that is, the portion extending horizontally to the inlet side of the pulper 100, supported by both ends of the bearing 23, Accordingly, the string-like contaminants extending vertically from the pulper 100 side may be guided toward the reel drum 15 by being substantially horizontally bent while covering the guide roller 16 at this time.

That is, the miscellaneous matter may be mounted on the guide roller 16 and proceed with the load.

In particular, a load gauge 22, such as a load cell, is installed at both bearing support portions of the guide roller 16, and the load gauge 22 serves to receive the load on the guide roller side.

That is, the two load meters 22 support the guide roller 16.

Accordingly, the load meter 22 may detect the tension acting on the load of the guide roller 16, that is, the weight of the contaminant, and may provide the detected signal to the controller 21 to be described later. .

In addition, one side of the apparatus is provided with a controller 21, the controller 21 at this time serves to control the operation of the worm reducer 10 and the brake motor 11 by receiving a signal from the load meter 22. .

In this case, the load cell applied to the load gauge 22 measures the resistance change of the strain gauge attached to the surface of the sensing unit by detecting the elastic deformation of the load cell sensing unit generated when the load is applied, thereby detecting the magnitude of the force as an electrical signal. It is equipment.

The controller 21 is a device for converting a micro signal of a load cell into a load (kg), etc., which is capable of displaying a load, and displays a current load value digitally. It includes the functions of controlling and exchanging data through communication with other equipment such as a computer.

Looking at the operating method of the lager device configured as described above are as follows.

The lager device of the present invention detects the tension applied to the contaminant from the load meter 22, that is, the load cell, provided on the guide roller 16 side, and provides the detected signal to the controller 21 side to control the drive means. Through the control of the worm reducer 10 and the brake motor 11, for example, the driving speed of the contaminants is automatically adjusted.

In this case, the controller 21 controls the driving means by adjusting the time relay of the device, wherein the time relay adjusts the running time and the interval time in association with each other. This can be adopted.

For example, if the speed of the device is small due to the thinner contaminants, the driving time can be increased without adjusting the running time. If the speed of the device is slow, the operating time can be adjusted without adjusting the running time. You can drive in a way that reduces

At this time, it is preferable that the adjustment range of the running time is adjusted between 94 and 12 seconds, and the adjustment range of the interval time is adjusted between 1 and 3 minutes.

That is, when the tension applied to the contaminant, i.e., the load on the contaminant, is detected from the load cell on the side of the guide device, the detection signal (load value) at this time is input to the controller side, and the controller continues to set preset load values. According to the running time and the interval time for the operation of the drive means can be appropriately adjusted to the current operating conditions, and eventually the progress of the contaminants can also be properly adjusted.

Here, the appropriate running time and interval time for each load can be set through calibration according to repetitive test operation.

For example, when the speed of the apparatus is as fast as --- to ---, the running time at this time may be set to about --- to-and the interval time may be set to about-to-.

On the contrary, when the speed of the apparatus is as slow as --- to ---, the running time at this time may be set to about --- to-and the interval time may be set to about-to-.

※ The question is .

1. What does it mean when your device is fast or slow?

2. Is the speed of the brake motor adjusted or is it always constant?

3. Above Running  What time period is 94 to 12 seconds relative to? (Is the speed of the motor speed or is it running?)-If Running  What does this mean if the time is 30 seconds

4. Likewise, what is the interval time?

5. Is the interval time while the motor is stopped?

6. Day example one Please listen (When the load range is what Running  How long the time is, and how long the interval time is reduced or increased)

5A and 5B are schematic diagrams showing an operating state of a lager apparatus according to an embodiment of the present invention. Here, in order to describe only the operating state of the lager apparatus, a basic configuration of the lager apparatus and its peripheral apparatuses is omitted except for some components. The example shows only the elements.

First, the basic operation method of the lager device is as follows.

Before the pulper 100 is operated, a lager line (a string-like contaminant) is prepared to be operated.

Tie about 30 strands of cut wire to the front bunch of lager lines to secure it.

Each wire is bent in a loop shape and the ends are bent so that the impurities are entangled.

Anchors made in this way should be of appropriate length for the pulp capacity.

With the weight loaded roller 14 raised, the lager line and anchor are placed on the reel drum 15 and the weight loaded roller 14 is lowered.

Set the time interval to 0 and insert the lager line.

Push the wired lager line close to the impeller in the pulp.

Observe the lager line while stopping the lager system.

The lager line now has a sharp tension in the spinning ared of the impeller.

This means moving the lager line closer to the impeller until constant tension and torsional motion is felt at the line.

Adjust the time relay of the lager unit.

The speed of the lager line depends on the contamination and throughput of the highlands to be dissociated.

The time relay for running time is an adjustable range between 94 and 12 seconds.

The time relay for interval time is an adjustment range of 1 to 3 minutes.

To protect the motor, do not operate it more than 200 times per hour and set the interval time not to be less than 17 seconds.

If the lager line is thin and the speed of the lager device is high, the running time is not adjusted, but only the interval time is long.

If the amount of twisted contaminants is too small, add more wire.

If the lager line is broken, stop the pulper and remove the broken end of the string from the pulper using a hook or hoist.

In the case of small amounts of contaminants that may be entangled in the feed, the lager system should be intermittently operated, and the interval time is determined during operation.

If the lager line is slow because the lager line is too thick, run it by reducing the interval time without adjusting the running time if possible.

As shown in Figure 5a, here shows the process of forming the strand (Strand) of the lager line.

The waste paper (paper waste) inside the pulper 100 is mixed with water, and the raw material released into the small fiber particles by the vortex of the impeller driven by the motor is sent out to the porous plate at the bottom of the impeller and sent to the next process.

In addition, heavy contaminants (steels, stones, etc.) with high specific gravity are discharged to the lower end of the pulp.

The light weighted contaminants are discharged to a separate outlet installed at the bottom of the pulper, and the light weighted and long lengthed contaminants (vinyl, band, string, etc.) are discharged as a string formed at the upper end of the pulper.

As shown in Figure 5b, the lager line discharged as described above is passed through the lager apparatus 110, is cut to a certain length in the rope cutter machine 120 and incinerated in a waste or incinerator is treated as waste.

At this time, in the lager device 110, the load cell is automatically sensed the weight of the lager line, and in conjunction with this the lager device 110 is operated while the advancing speed of the contaminant is automatically adjusted, eventually removing the long contaminants of the pulper effectively Economical operation can be achieved while improving product quality and manpower and time, which are problems in the composition process.

1 is a front view showing a conventional lager device

Figure 2 is a plan view showing a conventional lager apparatus

Figure 3 is a front view showing a lager apparatus according to an embodiment of the present invention

Figure 4 is a plan view showing a lager apparatus according to an embodiment of the present invention

5A and 5B are schematic views showing an operating state of a lager device according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

10: worm reducer 11: brake motor

12 frame structure 13 cylinder

14: Weight loaded roller

15: reel drum 16: guide roller

17: wheel shaft 18: lifting arm

19: chain transmission 20: auxiliary roller

21 controller 22 load meter

23: bearing 24: roller arm

Claims (10)

(delete)  (delete) (delete) (delete) (delete) (delete) (Correction) Pull out the contaminants using the reel drum operated by the worm reducer and the brake motor and the weight loaded roller operated by the cylinder, and guide the contaminants using the guide roller installed at the inlet side of the pulper. A method of operating a lager device to remove long contaminants, the load roller is installed on the side of the guide roller, and the speed of the contaminant is automatically adjusted through the output control of the controller that receives a signal from the load gauge. Adjusting the time relay of the device when controlling the output of the controller in conjunction with the running time and interval time, The output control of the controller is a method of operating a lager device, characterized in that made in the manner of adjusting the time relay of the device. 8. The method according to claim 7, wherein the running time is in the range of 94 to 12 seconds and the interval is in the range of 1 to 3 minutes. The method according to claim 7, wherein when the speed of the device is high due to the thinness of the device when adjusting the time relay of the device by the output control of the controller, the interval time is increased without adjusting the running time. The method of claim 7, wherein when the speed of the device is slow due to a large amount of contaminants in adjusting the time relay of the device by the output control of the controller, the interval time is reduced without adjusting the running time.

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