KR20040075622A - Method and apparatus for cleaning of waste synthetic resin products - Google Patents

Abstract

PURPOSE: A method and device for cleaning waste synthetic resin products is provided to completely remove pollutant from the waste synthetic resin products. CONSTITUTION: A device for cleaning waste synthetic resin products is composed of a cleaning tank(10), a rear ejection unit(20) installed at the rear wall of the cleaning tank, a feed screw(30) horizontally installed at the rear wall of the cleaning tank, and a bubble generator(70) installed at the bottom of the cleaning tank and generating air bubbles. The cleaning tank includes a floating-matter collecting unit(10b), a cleaning unit(10a), a pollutant-deposited unit(10c), an injection port(12), and a discharge unit(13).

Description

Method and apparatus for cleaning of waste synthetic resin products

The present invention relates to a method and apparatus for cleaning waste synthetic resin, and more particularly, to effectively clean and remove contaminants, such as soil, contained in recyclable waste synthetic resin (including waste vinyl) so that regeneration can be performed smoothly. The present invention relates to a method and apparatus for cleaning waste synthetic resin.

In general, recyclable waste synthetic resins that are used for cultivation of plastic houses or field crops in rural areas contain a large amount of various pollutants such as soil or blades of grass. Pretreatment was required.

Therefore, conventionally, a method of washing contaminated resin by removing the contaminants by using a flushing cleaning device is mainly used. Such a conventional cleaning device generates vortices in water by using a triangular or square rotating rod, and thus, waste synthetic resin by vortexing action. The contaminants on the surface are to be cleaned.

However, in the case of contaminants buried in the soil, simply raising the vortex with a rotating rod does not remove it in a short time. Therefore, the cleaning time may be increased or several cleaning devices may be installed to repeat the cleaning process. As a result, the amount of cleaning per unit time was reduced and productivity was greatly reduced, and there were various problems such as high operation and maintenance costs.

In addition, in order to use several washing apparatuses, a large installation space and a large number of workers were required, and there were also waste stages in which wastewater discharge was increased.

The present invention has been invented to solve the conventional problems as described above, the object is to provide a method and apparatus for cleaning waste synthetic resin to remove contaminants by cleaning clean in a short time.

It is another object of the present invention to provide a method and apparatus for cleaning waste synthetic resin, in which the amount of cleaning per unit time is greatly increased and operation costs are greatly reduced.

The above object of the present invention is to generate a strong water flow and vortex in the water in a single washing tank, the method and apparatus for cleaning waste synthetic resin to clean the waste synthetic resin added by these complex actions more quickly and smoothly in a short time Is achieved by providing

According to the washing method and apparatus of the present invention, when the waste synthetic resin is introduced into the water in the washing tank through the inlet, the first washing step is performed by the jeonsinji in the process of being advanced by the action of the powerful jeonsinsu generated by the pump, As the transfer screw installed in the cleaning tank is operated in the process of being advanced and cleaned, the vortices are advanced to move forward while the waste synthetic resin is swung, so that the secondary cleaning step by the vortex is performed in this process, and both sides of the cleaning tank are performed. In this process, the third washing step is performed by the lateral water flow in this process, and the downward and upward water flows are generated in the upper and lower parts of the washing tank. A secondary washing step is performed, and the waste synthetic resin is washed through the first to fourth washing steps. When the front reaches the 5 primary cleaning step is carried out by the air bubbles as injury to the surface by the action of bubbles supplied from the bubble generator is installed on the lower side.

Therefore, according to the cleaning method and apparatus of the present invention, since the waste synthetic resin is introduced into the water in a single cleaning tank, the cleaning is performed in a short time because several steps of cleaning are performed in the process of moving forward and floating.

On the other hand, waste synthetic resins that are cleaned and floated to the surface during the 1-5th cleaning stage are lifted out and sent to the outlet, and contaminants separated from the washing process and precipitated at the bottom of the cleaning tank by their own weight are necessary. Open the city outlet and discharge it to the outside.

1 is a schematic configuration diagram omitting a part of a cleaning apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic diagram illustrating a portion omitted from FIG. 1.

3 is a front view showing a part of the cleaning device;

* Description of the symbols for the main parts of the drawings *

10; Washing tank 10a; Cleaning unit

10b; Harvester 10c; Precipitation

11, 11 '; Upper and lower half boards 11a and 11b; Leading edge

12; Input section 13; Export

20; Rear ejector 30; Feed screw

40; Lateral ejectors 50; Upper ejector

60; Lower ejector 70; Bubble generator

80; Ejector

Hereinafter, the cleaning method and apparatus according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic configuration diagram omitting a part of a cleaning apparatus according to an embodiment of the present invention, Figure 2 is a schematic configuration diagram showing a portion omitted in Figure 1, Figure 3 is a cross-sectional view of the same.

The washing tank 10 having an open upper portion includes a collecting portion 10b of an upper floating material by upper and lower mesh plates 11 and 11 ', a washing portion 10a of an intermediate waste synthetic resin a, It is divided into the settling portion 10c of the contaminant on the lower side.

The front and rear ends 11a and 11b of the upper half wall 11 are equally bent upwardly, and an input portion of the waste synthetic resin a to be washed communicates with the cleaning portion 10a at the upper rear side of the cleaning tank 10. (12) is provided, and the carrying out portion 13 of the waste synthetic resin having been cleaned at the upper front side is provided.

The meshes of the net boards 11 and 11 'are made to the size that the waste synthetic resin (a) does not escape and the separated suspended matter or contaminants can escape, so that the input to the input section (12) The waste synthetic resin passes forward without leaving the cleaning unit 10a, and is washed out in this process to be carried out to the outside when it reaches the carrying out unit 13.

A rear ejector 20 is provided on the rear wall of the cleaning unit 10a, which generates a powerful forward water flow in the water because the rear sprayer ejects the water pressure pumped by the pump 21 toward the inside of the cleaning unit. Let's do it.

Therefore, the waste synthetic resin (a) introduced into the cleaning unit (10a) is subjected to a primary cleaning step in the process of being advanced by the action of a powerful forward water flow.

In addition, a transfer screw 30 is installed horizontally toward the front of the rear wall of the cleaning unit 10a. When the transfer screw is rotated, a vortex is advanced in the water.

Accordingly, since the waste synthetic resin (a), which is advanced by the action of the advance water stream, is advanced while being swung by the advanced vortex, a secondary washing step is performed in this process.

The rear ejector 20 and the transfer screw 30 are each increased or decreased in proportion to the space area of the cleaning unit 10a. When the plurality of the rear ejectors 20 and the transfer screw 30 are installed, the rear ejector 20 and the transfer screw 30 are alternately arranged to maintain a predetermined distance from each other. It is preferable.

This is done so that the waste synthetic resin (a) is evenly washed by generating the forward water and the vortex evenly in the water.

In addition, by installing a plurality of side ejectors 40 at regular intervals on both side walls of the cleaning unit 10a to eject the water pressure pumped by the pump 41 into the water from both sides, so that the transfer screw 30 Lateral water flow acts on the waste synthetic resin (a), which is stirred by the vortex generated by the rotation, so that the third washing step is performed.

In addition, the upper ejector 50 is installed at regular intervals so that the ejection direction is inclined downward on the upper sides of the barriers 10a, and the lower ejector 60 is inclined upwardly at a lower portion of both barriers. Is installed.

The upper ejectors 50 eject the water pressure pumped by the pump 51 in a direction inclined downward in the water at the upper sides of the washing units 10a, and the lower ejectors 60 are pumped to the pump 61. The water pressure pumped by the water is ejected in a direction inclined upward in the water from the bottom of both sides.

In this case, the fourth washing step is performed by the mixing action in which the water flow caused by the water pressure ejected from both sides and the upper and lower sides is added to the vortex action caused by the forward water flow caused by the water pressure ejected from the rear and the rotation of the transfer screw 30. Thus, more complete cleaning is achieved.

Of course, it is preferable to simultaneously operate the upper and lower ejectors 50 and 60 in the fourth washing step, but depending on the degree of suspended matter buried in the waste synthetic resin (a), only one of them may be selectively operated. .

A bubble generator (70) is installed at the bottom of the front side of the cleaning section (10a), and bubbles generated from the bubble generator are raised, and the waste synthetic resin (a), which is cleaned by forward flow and vortex action, is transferred to the front, and is carried out. Let him rise to the (13) side.

At this time, since the bubbles act to remove the residual suspended solids while floating the waste synthetic resin (a), a fifth washing step is performed in this process.

An ejector 80 is installed at the rear upper side of the ejection part 13, which ejects the cleaned waste synthetic resin (a), which floats on the surface by bubbles, and transports it to the ejection outlet 14.

The ejector 80 is composed of a rotating shaft 81 which is forward and reverse rotated within a proper angle by a motor (not shown) and a hook pin 82 which is installed at a predetermined interval on the rotating shaft. Synthetic resin (a) is rolled up by the hook pin.

Of course, the configuration of the above-described ejector 80 is described as an example, and is not necessarily limited thereto, as long as it can be lifted out of the waste synthetic resin (a) that rises to the surface may be applied to anything.

In such a cleaning process, heavy ones such as soil debris among the contaminants separated from the waste synthetic resin (a) are dropped to the lower portion of the washing tank 10 by passing through the lower netting 11 ′ by its own weight. Precipitated in the settling portion (10c), light weight such as straw is passed through the upper panel 11, the surface of the collecting portion (10b) rises.

Therefore, the floating material floating on the water surface of the collecting unit 10b may be removed by lifting it up, and the contaminant deposited on the settling unit 10c periodically opens the discharge port 15, and the discharge screw 90 installed in the settling unit. Rotate to discharge to the outside.

The cleaning method and apparatus according to the embodiment of the present invention generate strong forward water flow and vortex in the water in the cleaning tank, and increase the vortex action by supplying separate water pressure simultaneously or selectively at both sides and upper and lower parts. As a result of the complex action of the advancing water stream and the vortex, the waste synthetic resin is advanced and the cleaning is performed in several stages. Therefore, the pollutants are completely removed in a short time.

In addition, since the action of bubbles to raise the waste synthetic resin on the surface of the water to remove the remaining contaminants, the cleaning effect is further improved.

In addition, the productivity is greatly improved by increasing the amount of cleaning per unit time, and the use of a single cleaning device not only reduces the operation and maintenance costs, but also greatly reduces the installation space and labor, and minimizes the amount of wastewater discharged. have.

Claims (13)

When the waste synthetic resin is put in the water of the washing tank through the input unit, the washing step by the jeonsinyu to remove contaminants while supplying jeonsinyu advance the waste synthetic resin; Generating a vortex which is advanced in water, wherein the vortices are rinsed to remove contaminants by acting in the process of advancing the waste synthetic resin by the forward vortex and the forward vortex; After the contaminants are removed during the washing step by the spreading water and the vortex, air is supplied to the waste synthetic resin which is advanced to the carrying out portion, and the air is floated to the surface of the carrying out portion. The cleaning method of the waste synthetic resin, characterized in that it comprises a washing step by the bubble. The method of claim 1, In the process of the washing step by the jeonsinmul vortex and vortex, the side water flow inwards from both sides to the inside to supply the side water flow to the side water flow to remove the contaminants further comprises a washing step by Method for cleaning the waste synthetic resin, characterized in that made. The method of claim 1, In the process of the washing step by the jeonsinmul vortex and vortex, it further comprises a washing step by the up and down water flow to supply the downward and upward water flow in the upper and lower sides in the water to remove contaminants by acting A method for cleaning waste synthetic resin, characterized in that. The method of claim 1, In the process of the washing step by the jeonsinmul vortex and vortex, the lateral water flow from the two sides to the inward side in the water by the lateral water flow to remove the contaminants by the lateral water flow washing step, and in the water A method for cleaning waste synthetic resin further comprising a step of washing the up and down streams by supplying downward and upward streams from the upper and lower sides to remove contaminants by acting. The inside is divided into an upper floating material collection section, an intermediate waste synthetic resin cleaning section and a lower contaminant precipitation section, and an upper rear is provided with a waste synthetic resin inlet communicating with the rear of the cleaning section, and an upper front is provided in front of the cleaning section. A washing tank provided with a discharging portion of the washed synthetic resin passed through; A rear ejector installed on the rear wall of the washing unit and emitting a pumped water pressure toward the inside of the washing unit to generate a strong forward water flow in the water; A transfer screw installed horizontally toward the front of the rear wall of the cleaning unit and generating a vortex which is advanced in the water when rotated; Bubbles are installed at the bottom of the front side of the cleaning unit and supply bubbles to remove waste contaminants, while floating the synthetic resin cleaned and forwarded by the forward flow and vortex action to the surface of the discharge section. Cleaning device for waste synthetic resin comprising a generator. The method of claim 5, The rear ejection device is a washing device for waste synthetic resin, characterized in that provided in plurality. The method of claim 5, The transfer screw, the cleaning device for waste synthetic resin, characterized in that provided in plurality. The method of claim 5, The rear ejection device and the transfer screw, a plurality of each of which is installed so that their positions are arranged alternately with each other, the cleaning device of the waste synthetic resin. The method of claim 5, A device for cleaning waste synthetic resin, characterized in that a plurality of side ejectors are formed on both side barriers of the washing section to pump water pressure from both sides into water to allow the side streams to act on the waste synthetic resin. The method of claim 5, The upper part of both side barriers of the cleaning part, the pumped water pressure is discharged in the direction inclined downward in the water from the upper side, the waste synthetic resin is characterized in that a plurality of upper ejectors for the downward flow of the action to be installed Device. The method of claim 5, In the lower part of both side barriers of the cleaning part, the pumped water pressure is discharged from the lower part to the inclined direction upward in the water, and a plurality of lower ejectors are installed in the waste synthetic resin so that the upstream water flows. Device. The method of claim 5, Both side barriers of the washing section are provided with a plurality of side ejectors for pumping water pressure from both sides into the water to allow the side streams to act on the waste synthetic resin. A plurality of upper spouts are installed to discharge water in a downwardly sloped direction so that the down stream flows to the waste synthetic resin, and the pumped water pressure is discharged in a downwardly inclined direction from below to the lower portions of both side walls of the washing unit. An apparatus for cleaning waste synthetic resin, characterized in that a plurality of lower ejectors are formed in the waste synthetic resin so that upward water flow can act. The method of claim 5, And a discharging machine for lifting up the washed waste synthetic resin, which is floated on the water surface by air bubbles, and discharging it to the outside at the rear upper end side of the discharging unit.