KR101128329B1 - Filtering apparatus for wastes recycling - Google Patents

Abstract

PURPOSE: A slurry and resource recycling and filtering apparatus is provided to prevent the surface damage of a drum filter and to precisely eliminate impurities form the drum filter by implementing a back washing process based on compressed air. CONSTITUTION: A slurry and resource recycling and filtering apparatus includes a treating bath(10), a drum filter(20), a scrapper, a filtering chamber(40), an air compressor(60), an air supplying pipe(61), an air nozzle, an impurity draining pipe(16), and an air cylinder. One side of the air supplying pipe is in connection with the air compressor. Another side of the air supplying pipe passes through the inside of a rotary shaft to be expanded to the inside of the drum filter. The air nozzle sprays compressed air to the inside of the drum filter. The air cylinder is combined with one side of the scraper and the inner wall of the treating bath. The air cylinder adjusts the distance of the scraper with respect to the drum filter based on the air pressure of the air compressor.

Description

Slurry and Resource Recycling Filtration {FILTERING APPARATUS FOR WASTES RECYCLING}

The present invention relates to a slurry and a resource recycling filtration device, and more particularly, to a filtration device having a scraper for backwashing the drum filter of the filtration device and easily removing foreign substances from the drum filter.

In general, various wastewater discharged from industrial facilities contains a large amount of particulate matter, and when discharged as it is, it pollutes rivers. Thus, a wastewater discharge facility is provided with a removal device for removing particulate matter.

In the past, most of the removal apparatuses for removing particulate matter from wastewater have been introduced into the filter cloth, and then the filter cloth is compressed to remove the particulate matter filtered in the filter cloth.

The particulate matter removing apparatus through compression of the filter cloth has a problem in that continuous operation is impossible because the worker has to collect the filtered material from the inside of the filter cloth by a large amount of particulate matter in the filter cloth.

In addition, the particulate matter removal apparatus through compression of the filter cloth as described above, in order to treat a large amount of waste water, a plurality of filter cloths must be continuously installed. There was a problem that is difficult to use.

Recently, a filter using a filter has been proposed to solve this problem.

However, such a filter has a mesh structure similar to that of the filter cloth, so that particulate matter adheres to the filter surface, so that the filtration efficiency gradually decreases over time, and thus the filter filter surface has to be washed or replaced.

In order to solve the problems caused in the prior art as described above, "dehydration liquid solid separator of food waste treatment apparatus" (Korea Patent Publication No. 10-2010-0074613) and "vacuum filtration device" (Korea Patent Publication No. 10-0324403) have been published.

The technique rotates while supplying diatomaceous earth liquid to the surface of the cylindrical screen drum or rotates the ceramic-sintered drum, which filters and filters food waste, while installing a blade on one side of the screen drum. Separated diatomaceous earth and food waste were separated.

However, foreign matters such as food debris stuck to the drum surface are stuck in the microcavity of the drum, which causes a problem that the blade is not easy to remove.

In addition, in order to remove the foreign matter adhering to the microcavity, the drum has to be separated from the filtration device and has to be washed separately.

Accordingly, there is an increasing demand for a filtration device that overcomes the unreasonable point of the conventional filtration device and easily removes foreign substances from the drum surface.

The present invention has been made to solve the above problems, an object of the present invention is to extend the replacement cycle of the filter through the back washing of the drum filter used in the filtration device.

Another object of the present invention to provide a scraper that is easy to remove the foreign matter of the drum filter.

According to one side of the present invention for achieving the above object, the receiving space is formed inside, the rotating shaft is installed through the side wall surface on both sides, the supply pipe connected to the supply pump is coupled to one side to receive the raw water inside The processing tank is introduced into the space, the treatment tank is discharged to the outside by the discharge pipe is connected to the discharge pump on the other side, and the micro-hole is formed on the outer peripheral surface and the processing receiving space is formed in the cylindrical shape is axially coupled to the rotating shaft, cylindrical A lower part of the drum filter is installed so as to be immersed in raw water, the discharge pipe penetrates into the rotating shaft and extends to the treatment accommodation space, and one end is coupled to the inner wall of the treatment tank and the other end is in contact with the outer circumferential surface of the drum filter. Scraper is installed to separate the foreign matter on the surface of the drum filter, the filter is connected to the other side of the discharge pipe and filtered In the filtration apparatus including a filtration chamber is supplied to the water inside, the multi-stage filter is installed inside, the air discharge pipe and the vacuum pump is connected to one side of the upper side, and the treatment water outlet is formed on one side, it is installed on one side of the treatment tank An air compressor for supplying air, an air supply pipe having one side connected to the air compressor and the other side penetrating into the rotary shaft to extend into the drum filter, and connected to the other side of the air supply pipe to be compressed in the drum filter And an air nozzle for injecting air and a foreign matter drainage pipe installed at one side of the lower portion of the treatment tank, and the foreign matter on the surface of the drum filter is backwashed by the air pressure injected from the air nozzle.

In addition, the scrap is a metal material is a diamond powder coated surface of the surface in contact with the drum filter.

And an air cylinder coupled between one end of the scraper and an inner wall surface of the treatment tank and adjusting a distance between the scraper and the drum filter by air pressure of the air compressor.

In addition, a solenoid valve may be installed at an upper side of the filtration chamber, and a drain pump may be installed at a lower side of the filtration chamber.

And the outside of the drum filter is coated with diatomaceous earth or perlite.

According to the present invention as described above, the drum filter of the filtering device is backwashed through the compressed air injection method has the effect of reducing the cost of frequent filter replacement by extending the replacement cycle of the filter.

In addition, the scraper for removing the foreign matter of the drum filter is diamond powder coated and the distance between the scraper and the drum filter is controlled by the air cylinder to remove the foreign matter of the drum filter more precisely, the drum filter surface damage There is an effect that can prevent.

1 is a perspective view of a slurry and resource recycling filtration apparatus according to the present invention.
2 is a cross-sectional view showing the internal structure of the filtration apparatus according to the present invention.
3 is a cross-sectional view showing the internal structure of the treatment tank of the filtration apparatus according to the present invention.
4 is a view showing the operation of the slurry and the resource recycling filtration apparatus according to the present invention.
5 is a view showing a back washing operation relationship of the drum filter according to the present invention.

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

1 is a perspective view of a slurry and a resource recycling filtration device according to the invention, Figure 2 is a cross-sectional view showing the internal structure of the filtration device according to the invention, Figure 3 shows the internal structure of the treatment tank of the filtration device according to the present invention. It is a cross section.

Referring to the drawings, the slurry and resource recycling filtration apparatus according to the present invention is processed by a supply pipe 11 connected to the supply pump 12 is supplied with raw water on one side and the discharge pipe 13 connected to the discharge pump 14 on the other side A treatment tank 10 through which water is discharged to the outside, a drum filter 20 for filtering foreign matters from raw water into the treatment tank 10, a scraper 30 for separating foreign substances from the outer circumferential surface of the drum filter 20, and a discharge pipe. A filtration chamber 40 connected to 13 to finely filter the treated water, an air compressor 60 to supply air to the treatment tank 10 through an air supply pipe 61, and a drum filter 20 inside the filter chamber 40. And an air nozzle 62 for backwashing the drum filter 20 by spraying compressed air to the back, and a drain pipe for draining the backwashed foreign matter.

The treatment tank 10 has a hollow shape inside the raw water is introduced into the raw water containing the particulate matter to be removed through the supply pipe 11 connected to one side, the other side is filtered through the discharge pipe 13 Treated water is discharged to the outside. In addition, the treatment tank 10 may be configured to open and close an inner space by installing a cover on the upper portion thereof so that foreign substances generated during the filtration treatment may not be scattered to the outside. In addition, a sensor (not shown) for detecting the level of raw water may be installed on the sidewall surface of the processing tank 10 to configure the level of raw water stored in the processing tank 10.

And the rotating shaft 15 is installed through the side wall surface on both sides of the treatment tank 10, the drum filter 20 is axially coupled to the rotating shaft 15.

The drum filter 20 is formed in a cylindrical shape so that the treatment accommodation space 21 is formed therein and the lower portion of the cylinder is immersed in the raw water. The drum filter 20 is rotated by a separate driving device 50 inside the treatment tank 10.

The drum filter 20 is preferably made of a sponge-based material. The drum filter 20 has a thickness of about 5 to 100 mm and a length of about 300 to 1000 mm so that it can be made to order. The drum filter 20 has fine holes formed on the outer circumferential surface thereof. It is preferable that it is 10-50 microns. In addition, by coating diatomaceous earth or perlite on the outer circumferential surface of the drum filter 20, it is possible to filter and purify even more fine foreign matter.

Raw water is introduced into the processing space for accommodating the interior of the drum filter 20 through the air gap formed on the outer circumferential surface of the drum filter 20, and the foreign matter contained in the raw water adheres to the outer circumferential surface of the drum filter 20. In this case, the drum filter 20 preferably secures a time at which raw water can sufficiently flow into the drum filter 20 through a low speed rotation, and the drum filter 20 rotates at 0 to 60 times according to the type of foreign matter. In order to control the separate inverter (not shown) can be mounted. In general, the number of revolutions per minute of the drum filter 20 is preferably about 10 to 12 times.

One end of the scraper 30 is coupled to the inner wall surface of the treatment tank 10 and the other end is in contact with the outer circumferential surface of the drum filter 20 so that foreign matter adhered to the outer circumferential surface of the drum filter 20 is caught by the end of the scraper 30. The drum is separated from the drum filter 20.

To this end, the scraper 30 is preferably made of a metal plate of iron plate, cemented carbide. The scraper 30 is inclined upwardly, and the other end of the scraper 30 has a tapered blade 31 formed in contact with the outer circumferential surface of the drum filter 20.

In addition, the surface of the blade 31 of the scraper 30 in contact with the drum filter 20 may be diamond powder coated to remove foreign substances from the drum filter 20. When the diamond powder is coated on the blade 31 of the scraper 30, a fine projection surface having rigidity is formed on the blade 31 to scrape out the foreign matter stuck between the fine holes formed in the drum filter 20 to be more precise. Allow foreign material to be removed.

Then, the air cylinder 63 is mounted between one end of the scraper 30 and the inner wall surface of the treatment tank 10, and the air cylinder 63 is operated by adjusting the air pressure of the air compressor 60, thereby cutting the blade of the scraper 30. The distance 31 is in contact with the drum filter 20 is adjusted. In this way, the drum filter 20 can be prevented from being damaged by the rigid diamond powder protrusion formed on the blade 31 of the scraper 30.

And foreign matter lodged in the fine hole of the drum filter 20 is not removed by the scraper (30). Thus, by backwashing the drum filter 20 to remove foreign substances can be extended as long as the filter replacement cycle. The backwashing of the drum filter 20 removes foreign substances that are stuck in the micro holes of the drum filter 20 by spraying compressed air into the drum filter 20.

In more detail, the compressed air is injected from the drum filter 20 in the air compressor 60 installed at one side of the treatment tank 10 to remove foreign substances. To this end, an air supply pipe 61 for transporting compressed air generated by the air compressor 60 is connected to one side of the air compressor 60, and the other side of the air supply pipe 61 penetrates into the rotating shaft 15 to allow a drum filter ( 20) It extends inside.

The other side of the air supply pipe 61 extending into the drum filter 20 is connected to an air nozzle 62 in which a plurality of injection nozzles are formed, and compressed air is processed inside the drum filter 20 through the air nozzle 62. In the receiving space 21, the foreign matter that is injected into the drum filter 20 outside, that is, the treatment tank 10, and lodged in the micro holes of the drum filter 20 is removed. And the removed foreign matter is discharged to the outside through the foreign matter drainage pipe 16 is installed on the lower side of the treatment tank (10).

As described above, compressed air is injected through the air nozzle 62 to backwash the drum filter 20, and compressed air is applied to the air cylinder 63 to prevent damage to the drum filter 20. Compressed air supply of the air compressor 60 as described above is to control the air supply by a separate control unit (not shown).

The filtration chamber 40 is connected to the other side of the discharge pipe 13, the treated water filtered in the treatment tank 10 is supplied is stored the treated water therein. In addition, a treatment water outlet 43 and a treatment water discharge pump 46 are installed at one side of the filtration chamber 40, and an air discharge pipe 41 and a vacuum pump 42 are connected to an upper portion thereof. Filter is installed.

In the multi-stage filter, a pvdf filter layer 71 of pvdf material is formed at a predetermined distance from the inner lower portion of the filtration chamber 40, and a diatomaceous earth coated filter layer of diatomaceous earth is coated on the pvdf filter layer 71. 72 is formed, and may be formed of an activated carbon filter layer 73 made of activated carbon material on the diatomaceous earth coating filter layer 72. In another filter configuration, after forming the pvdf filter layer 71, the diatomaceous earth filter layer 72, and the activated carbon filter layer 73 from the bottom, the disk filter layer 74 is formed on the activated carbon filter layer 73, and the disk filter layer 74 is formed. The diatomaceous earth coating filter layer 75 of the diatomaceous earth is coated with a wider gap than the diatomaceous earth coating filter layer 72 may be configured to be formed.

As described above, the vacuum pump 42 is installed on the filtration chamber 40 to separate the filtrate by the vacuum method, and a plurality of filters are continuously configured in different configurations in the filtration chamber 40 so that more precise fine filtration is performed. can do.

And the solenoid valve 44 is installed on the upper side of the filtration chamber 40, the drain pump 45 is installed on the lower side of the filtration chamber 40 to operate the solenoid valve 44 to operate the inside of the filtration chamber 40 Air is introduced into the filter, and the filtered water is discharged by the operation of the drain pump 45 to remove the foreign matter or slurry in the filtration chamber 40 to reuse the slurry or the foreign matter.

Hereinafter will be described in detail the operating relationship between the slurry and the resource recycling filtration device according to the present invention.

4 is a view showing the operating relationship between the slurry and the resource recycling filtration apparatus according to the present invention, referring to the drawing, first, the foreign matter removal target water is introduced into the treatment tank 10 through the supply pipe (11). The drum filter 20 is rotated at a constant speed by the driving of the driving device 50 in the state in which raw water is introduced into the treatment tank 10, and the foreign matter contained in the raw water is the surface of the drum filter 20. It is rotated while buried in, and the filtered water filtered by the foreign matter is moved to the treatment accommodation space 21 therein along the air gap on the surface of the drum filter 20. At this time, the rotational speed of the drum filter 20 is set differently according to the type of the foreign matter so that the foreign matter is sufficiently buried in the drum filter 20 and moved to the internal treatment accommodation space 21 through the air gap of the drum filter 20. do. The foreign matter on the surface of the drum filter 20 is filtered by the scraper 30, and the filtered foreign matter may be discharged through a separate pipe or discharge device. Here, the blade 31 of the scraper 30 is diamond powder coated to remove foreign substances from the drum filter 20 more effectively, and the scraper 30 is buffered by the air cylinder 63 to allow the drum filter 20 to be removed. Do not damage the surface.

In addition, the treated water caught in the foreign matter is transferred to the inside of the filtration chamber 40 through the discharge pipe 13, the filtrate is separated by the vacuum method by the vacuum pump 42 installed on the filtration chamber 40 and purified water It is discharged to the outside through the treated water outlet 43 and reused. In addition, the solenoid valve 44 is opened and closed on the filtration chamber 40 to destroy the vacuum in the filtration chamber 40 and discharge the treated water to the outside through the drain pump 45 to dehydrate the slurry and foreign matter. It can also be reused.

5 is a view illustrating a backwashing operation relationship of the drum filter 20 according to the present invention. Referring to the drawings, first, the backwater of the drum filter 20 is controlled so that raw water does not flow into the treated water through a drain pipe. do. Then, the compressed air is transferred from the air compressor 60 to the air nozzle 62 located inside the drum filter 20 through the air supply pipe 61, and the compressed air is compressed at the surface of the drum filter 20. Sprayed into. At this time, the drum filter 20 is controlled to rotate so that foreign matters stuck in the micro holes of the surface of the drum filter 20 are separated by compressed air.

And the foreign matter separated from the drum filter 20 is accumulated in the treatment tank 10 is discharged to the outside through the foreign matter drainage pipe (16).

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications or variations without departing from the spirit and scope of the invention. Accordingly, the scope of the appended claims should include all such modifications and changes as fall within the scope of the present invention.

10: treatment tank 11: supply pipe
12 supply pump 13 discharge pipe
14: discharge pump 15: rotating shaft
16: foreign matter drainage pipe 20: drum filter
21: accommodation space 30: scraper
31: day 40: filtration chamber
41: air discharge pipe 42: vacuum pump
43: treated water outlet 44: solenoid valve
45 drain pump 50 drive
60: air compressor 61: air supply pipe
62: air nozzle 63: air cylinder

Claims (5)

The receiving space is formed inside, the rotating shaft is installed through the side wall surface on both sides, the supply pipe is connected to the supply pump is coupled to one side raw water flows into the inner receiving space, the treated water by the discharge pipe connected to the discharge pump on the other side Treatment tank discharged to the outside,
A micro hole is formed in the outer circumferential surface and the cylinder is formed in the processing receiving space therein is axially coupled to the rotating shaft, the lower portion of the cylindrical is installed so as to be immersed in the raw water, the discharge pipe is penetrated into the rotating shaft to accommodate the processing accommodation space Drum filter is formed to extend,
A scraper having a metal material, one end of which is coupled to the inner wall of the treatment tank, the other end of which is in contact with the outer circumferential surface of the drum filter, and the surface of the drum filter is coated with diamond powder to separate foreign substances on the surface of the drum filter;
Filtration including the filtration chamber is connected to the other side of the discharge pipe is supplied to the filtered treated water therein, a multi-stage filter is installed therein, an air discharge pipe and a vacuum pump is connected to one side of the discharge pipe, the treated water outlet is formed on one side In the apparatus,
An air compressor installed at one side of the treatment tank and supplying air;
An air supply pipe having one side connected to the air compressor and the other side penetrating into the rotary shaft and extending into the drum filter;
An air nozzle connected to the other side of the air supply pipe for injecting compressed air into the drum filter;
And a foreign matter drainage pipe installed at one side of the lower treatment tank;
It further comprises an air cylinder coupled between one end of the scraper and the inner wall surface of the treatment tank, and adjusts the distance the scraper is in contact with the drum filter by the air pressure of the air compressor,
Slurry and resource recycling filtration apparatus, characterized in that the foreign matter on the surface of the drum filter backwashed by the air pressure injected from the air nozzle.
delete delete The method of claim 1,
A solenoid valve is installed at one upper side of the filtration chamber,
Slurry and resource recycling filtration device, characterized in that the drain pump is installed on the lower side of the filtration chamber.
The method of claim 1,
Slurry and resource recycling filtration device characterized in that the outside of the drum filter is coated with diatomaceous earth or perlite.

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