WO2013172492A1

WO2013172492A1 - Apparatus for treating waste water and waste oil containing iron

Info

Publication number: WO2013172492A1
Application number: PCT/KR2012/003871
Authority: WO
Inventors: 이희성; 이민수; 최승권
Original assignee: 주식회사 그린코어 이엔씨
Priority date: 2012-05-17
Filing date: 2012-05-17
Publication date: 2013-11-21

Abstract

The present invention provides an apparatus for treating waste water and waste oil containing iron, comprising: a storage tank (31) for storing waste water or waste oil containing iron; magnetic separation tanks (32, 33) comprising an electromagnet (42), provided at an outer portion, to be magnetized according to whether current is applied and a porous matrix-shaped filter means (43), provided at an inner portion, for filtering iron contained in waste water or waste oil, so as to correspond to the electromagnet (42) in which waste water or waste oil transferred through supply lines (36, 37) connected to the storage tank (31) passes through the magnetic separation tanks so as to allow iron to be removed; a washing water tank (34) for storing washing water for washing the filter means (43) of the magnetic separation tanks (32, 33); and a washing means (35) comprising a nozzle for spraying washing water to the filter means (43) by washing lines (38, 39) connected to the washing water tank (34), wherein the magnetic separation tanks (32, 33) comprise a first separation tank (32) in which iron separation by the electromagnet (42) and the filter means (43) and washing of the filter means (43) by the washing means (35) alternately occur, and a second separation tank (33) in which iron separation and washing alternately occur with a time difference with respect to the first separation tank (32).

Description

Wastewater and waste oil treatment equipment containing iron

The present invention relates to a wastewater and waste oil treatment apparatus containing iron, and more particularly, the iron removal effect is not only very good, but also contains iron that can significantly reduce the time required for iron removal to shorten the treatment time It relates to waste water and waste oil treatment apparatus.

In general, steel mills use cooling water or rolling oil in the manufacturing process of steel sheet or sheet coil, and such cooling water or rolling oil mainly uses cooling and lubrication during the manufacturing process, and at the same time, iron is attached to the surface of the steel sheet or sheet coil. The foreign matter of the components and the mill scale adhered to the rolling roll surface of the rolling mill are used for the purpose of removing.

The cooling water or rolling oil used in this process contains a large amount of iron, and when it is used again, scratches are generated on the surface of the steel sheet or the plate coil, thereby lowering the quality of the product. It is precipitated and reused as cooling water or rolling oil. An example of such a conventional iron treatment apparatus will be described with reference to the drawings. As shown in FIG. 1, conventionally, a sedimentation tank 10 having an inflow passage 11 and an outlet passage 12 is provided to separate and settle iron contained in waste water or waste oil, wherein the inflow The furnace 11 is provided with a magnet 13 on the outside to separate and precipitate the iron powder by magnetic force.

However, such a conventional iron processing apparatus not only has a drawback in that it takes a long time to settle the foreign matter including iron in the settling tank 10, and accordingly, there are problems in installation and manufacturing according to the size of the settling tank 10. It is.

The present invention is to solve the problems as described above, the present invention is provided to perform the iron separation and washing at the same time is very excellent in the iron removal effect and significantly reduced the time required for iron removal treatment It is to provide a wastewater and waste oil treatment apparatus containing iron that can reduce the time.

According to a feature of the invention, the storage tank 31 for storing waste water or waste oil containing iron;

An electromagnet 42 which is provided to remove iron while the wastewater or waste oil transferred by the supply lines 36 and 37 connected to the storage tank 31 is passed, and is provided on the outside and magnetized according to the application of current; A magnetic separation tank (32, 33) comprising a filter means (43) in the form of a porous mattress provided at an inner side to correspond to the electromagnet (42) to filter iron contained in waste water or waste oil;

A washing water tank 34 in which washing water for washing the filter means 43 of the

magnetic separation tanks

32 and 33 is stored;

A washing means (35) comprising a nozzle adapted to spray the washing water onto the filter means (43) by washing lines (38, 39) connected to the wash water tank (34);

The

magnetic separation tanks

32 and 33 are first separation tanks in which iron separation by the electromagnet 42 and the filter means 43 and washing of the filter means 43 by the washing means 35 are alternately performed. (32) and a second separation tank 33 which alternately performs iron separation and washing at a time difference between the first separation tank 32;

The supply lines 36 and 37 and the washing lines 38 and 39 are provided with a plurality of control valves 44 to 51 which can be opened and closed according to the operation of the electromagnet 42 or the washing means 35. An apparatus for treating iron-containing wastewater and waste oil is provided.

According to the present invention as described above, a pair of

magnetic separation tanks

32 and 33 provided with the electromagnet 42 and the filter means 43 are provided, and the

magnetic separation tanks

32 and 33 are parallel to each other. By consisting of the first separation tank 32 and the second separation tank 33 which is arranged to be separated, the iron powder from the waste water or waste oil by any one of the first separation tank 32 and the second separation tank 33. While the filter means 43 is washed by the other while the iron can be separated and washed at a time difference, thereby greatly reducing the time required for iron removal, thereby reducing the processing time.

In addition, the present invention is provided with an electromagnet 42 to separate the iron by magnetic and filter means 43 in the form of a porous mattress, to effectively remove the iron contained in the waste water or waste oil to be very good iron removal efficiency In addition, there is an advantage that can provide a high-quality cooling water or rolling oil accordingly.

1 is a cross-sectional view showing an example of a conventional iron treatment apparatus.

2 is a block diagram showing a configuration according to an embodiment of the present invention

Figure 3 is a front sectional view showing the main part of the configuration according to an embodiment of the present invention

4 is a side cross-sectional view according to the configuration of FIG.

The objects, features and advantages of the present invention described above will become more apparent from the following detailed description. Hereinafter, described with reference to the accompanying drawings as follows.

2 to 4 show a configuration according to a preferred embodiment of the present invention. As shown in Figures 2 to 4, the present invention is provided with a storage tank 31 for storing waste water or waste oil containing iron, is connected to the storage tank 31, iron waste as waste water or waste oil passes through Magnetic separation tank (32, 33) is provided to separate the, and connected to the washing water tank 34 and the washing water tank 34, the washing water is stored to wash the iron separated from the magnetic separation tank (32, 33) And washing means 35 including a nozzle for removing the iron powder separated from the

magnetic separation tanks

32 and 33.

In this configuration, the storage tank 31 and the magnetic separation tank (32, 33) is connected by supply lines (36, 37) for supplying and discharging waste water or waste oil, and the wash water tank (34) and magnetic Separation tank (32, 33) is connected to the washing line (38, 39) for supplying and discharging the wash water, the supply line (36, 37) is waste water from the bottom of the magnetic separation tank (32, 33) to the top The waste oil is provided to pass through, and the washing lines 38 and 39 are provided to be discharged from the upper portion of the

magnetic separation tanks

32 and 33 to the lower portion so as to flow in and out of the supply line.

Here, the magnetic separation tank (32, 33) is provided with a cylindrical body 40, the outer side of the main body 41 is provided in the electromagnet 42 which is magnetized in accordance with the application of the current, The inner side of the main body 41 is provided with filter means 43 in the form of porous mattresses stacked at a predetermined height. The filter means 43 is made of a nonmagnetic material at the same time to increase the content of the iron separated by the electromagnet 42 as possible and is provided to facilitate the separation of iron during washing, the electromagnet 42 is When cleaning the filter means 43 is provided so that the current is cut off according to the cleaning cycle so as not to show the magnetic.

In addition, the magnetic separation tank (32, 33) and the first separation tank 32 and the first separation tank 32 is arranged in parallel with each other so that the supply line (36, 37) and the washing line (38, 39) is branched, respectively; It consists of two separation tank 33, a plurality of control valves on the inlet and outlet side of the magnetic separation tank (32, 33) on the conduit of the supply line (36, 37) and the washing line (38, 39) 44 to 51 are provided to open and close the conduits of the supply lines 36 and 37 or the washing lines 38 and 39.

In the present invention as described above, the iron separation and washing are continuously performed by the first separation tank 32 and the second separation tank 33. Waste water or waste oil stored in the storage tank 31 is pumped by the pump 52 and transferred to the supply lines 36 and 37, and the supply lines 36 and 37 are connected to the first separation tank 32. To the first supply pipe 36a and the first discharge pipe 36b connected to the inlet and outlet sides of the second supply pipe 37a and the second discharge pipe 37b respectively connected to the inlet and outlet sides of the second separation tank 33. The first supply pipe (36a) and the second supply pipe (37a) on the conduit of the first inlet side first control valve 44 and the second control valve 45 is provided, respectively, the first discharge pipe (36b) and The outlet-side 1st control valve 46 and the 2nd control valve 47 are respectively provided in the pipe line of the 2nd discharge pipe 37b.

In addition, the wash water stored in the wash water tank 34 is pumped by the pumping 53 is transferred to the washing line (38, 39), the washing line (38, 39) is the inlet and outlet of the first separation tank (32) The first washing water pipe (38a) and the first sludge discharge pipe (38b) and the second washing water pipe (39a) and the second sludge discharge pipe (39b) respectively connected to the inlet and outlet sides of the second separation tank (33) respectively connected to the sides. The first washing water pipe (38a) and the second washing water pipe (39a) on the inlet side of the first control valve 48 and the second control valve 49, respectively, the first sludge On the pipe line of the discharge pipe 38b and the second sludge discharge pipe 39b, an outlet side first control valve 50 and a second control valve 51 are provided, respectively.

By this configuration, the inlet-side first control valve 44 and the second control valve 45 of the supply lines 36 and 37 are controlled by a controller (not shown) and are provided to open for a predetermined time, respectively. Thus, the iron powder is discharged by the first separation tank 32 and the second separation tank 33 for a time set by the controller while the wastewater or the waste oil flows through the supply lines 36 and 37 with a predetermined time difference. Will be separated.

Each of the separation tanks (32, 33) is a cleaning of the filter means 43 by the washing means 35 at a predetermined time period (washing cycle), approximately 30 to 60 minutes It is set to have a washing time of about 1 to 2 minutes. During this washing time, the first control valve 44 and the second control valve 45 on the supply lines 36 and 37 are temporarily closed (during the washing time) to block the supply of waste water or waste oil. The first control valve 44 and the second control valve 45 are provided to be operated at a time difference, so that the iron separation operation in the second separation tank 33 while the cleaning in the first separation tank 32 is performed. This progresses, on the contrary, while the washing is finished in the first separation tank 32, the second separation tank 33 is washed while the iron separation operation is performed again. Here, the control valves 48 to 51 provided in the washing lines 38 and 39 are closed while the iron separating operations are performed in the

respective separation tanks

32 and 33 so that the supply of the washing water is blocked. At the same time, it is natural to control the opening to a cleaning cycle.

As described above, the present invention is provided such that waste water or waste oil is supplied at a time difference to each of the

separation tanks

32 and 33, and at the same time, a washing cycle is provided at a time difference, thereby cleaning cycles of the

magnetic separation tanks

32 and 33. Even during the wastewater or waste oil supply is not interrupted, the iron separation is continuously performed, thereby significantly reducing the treatment time.

In addition, reference numerals not shown indicate a case 40 in which the

magnetic separation tanks

32 and 33 are incorporated.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

Claims

A storage tank 31 configured to store waste water or waste oil containing iron;

An electromagnet 42 which is provided to remove iron while the wastewater or waste oil transferred by the supply lines 36 and 37 connected to the storage tank 31 is passed, and is provided on the outside and magnetized according to the application of current; A magnetic separation tank (32, 33) comprising a filter means (43) in the form of a porous mattress provided at an inner side to correspond to the electromagnet (42) to filter iron contained in waste water or waste oil;

A washing water tank 34 in which washing water for washing the filter means 43 of the magnetic separation tanks 32 and 33 is stored;

A washing means (35) comprising a nozzle adapted to spray the washing water onto the filter means (43) by washing lines (38, 39) connected to the wash water tank (34);

The magnetic separation tanks 32 and 33 are first separation tanks in which iron separation by the electromagnet 42 and the filter means 43 and washing of the filter means 43 by the washing means 35 are alternately performed. (32) and a second separation tank 33 which alternately performs iron separation and washing at a time difference between the first separation tank 32;

The supply lines 36 and 37 and the washing lines 38 and 39 are provided with a plurality of control valves 44 to 51 which can be opened and closed according to the operation of the electromagnet 42 or the washing means 35. Wastewater and waste oil treatment equipment containing iron.