KR100854933B1 - A filter device which can be able to wash precipitate in the filter - Google Patents

Abstract

A filter is provided to perform the filtration process in both directions, wash the precipitate several times without separately taking out a precipitate filtered in the filtration process to the outside of the filter, and proceed the washing process within the filter, thereby preventing a product within the filter from being exposed to the air. In a filter device that can wash filtered precipitate several times within a filter housing, a washing filter comprises: a housing(110) having a space part formed therein; filter members(410,420) formed at both ends of the space part within the housing to filter a precipitate in a mixed liquid; a mixed liquid inlet(210) and a mixed liquid outlet(220) which are formed perpendicularly to outer side faces between the filter members of the housing to supply a mixed liquid containing a compound to be filtered and washed to the filter housing and discharge the washed precipitate; and a solvent inlet and a solvent outlet formed on outer parts of both ends of the housing in which the filter members are formed to supply or discharge a precipitate forming solvent or a washing solvent. The washing filter further comprises ultrasonic oscillators(500) mounted on outer parts of the filter members.

Description

A filter device which can be able to wash precipitate in the filter}

The present invention relates to a filter device for washing the precipitate, and more particularly, to a device that can be washed using a backwashing process in the filter without taking out the precipitate to the outside of the filter.

In general, many industrial processes have used many filters as a device to remove foreign substances in the fluid.

Conventionally, there has been used a method of filtering foreign matter by providing only one filter member on one side in the housing and forcibly supplying a fluid containing foreign matter to the opposite side of the filter member and passing the fluid through the filter member.

If the precipitate is a desired product, a bag filter is used to obtain the precipitate. Conventional bag filter (Korean Registered Room No. 20-0434645) is settled in the process in which the fluid introduced through the inlet port is transferred to the upper portion of the filter member through the discharge hole and then passed through the bag filter through the inner pipe and discharged through the outlet port. The whole thing is filtered.

However, in the conventional filter, since the filtration is performed in only one direction, in order to wash the precipitate filtered out of the filter, the precipitate has to be taken out or the washing solvent must be flowed in the reverse direction. In particular, when the desired product should not be exposed to air, there is a risk of deterioration in the washing process, so the process is very complicated and the time is long.

It is an object of the present invention to provide a filter that can be filtered in both directions and that can be washed several times without removing the precipitate filtered out from the filter separately.

Another object of the present invention is to carry out the washing process in the filter so that the product in the filter is not exposed to air.

The washing filter which can wash the precipitate filtered in the filter housing of the present invention several times,

A housing having a space formed therein;

Filter members (410, 420) positioned at both ends of the inner space of the housing to filter precipitates in the mixed solution;

A mixed liquid inlet (210, 220) formed in a vertical direction on an outer side surface between the filter members (410, 420) of the housing, for supplying a mixed liquid containing a compound to be filtered to the filter housing and withdrawing the washed precipitate; And

The filter member 410, 420 is composed of solvent inlet and outlet (310, 320) for supplying or withdrawing the cleaning solvent from both ends of the housing outer position.

In addition, in the cleaning filter, the housing is characterized in that any one selected from a straight, semi-circular or curved shape.

In addition, in the washing filter, the filter is characterized in that any one or two or more materials selected from synthetic resin, metal, ceramic or paper.

In addition, the cleaning filter, characterized in that the ultrasonic oscillator 500 is further mounted to the outside of the filter member (410, 420).

The washing filter according to the present invention, unlike the existing filter device provided with a filter member between the inlet and outlet, the mixed solution through the mixed solution inlet and outlet 210, 220 located between the filter member 410 and the filter member 420 After introducing into the solvent, the solvent is introduced through the solvent inlets and outlets 310 and 320 located at both ends of the housing so that the filter member is positioned between the solvent inlets and outlets. When the filter is filtered and the solvent is discharged through the solvent inlet and outlet 320, when the solvent is supplied through the solvent inlet and outlet 320, the filter is filtered through the filter member 410 and the solvent is discharged through the solvent inlet and outlet 310. At the end of this process, the solvent is supplied in the reverse order, several times inside the filter without having to take out the sediment inside the filter. Since there is a feature that can be washed, both the inflow and outflow of the washing solvent can be performed in both directions, so that the sediment does not flow out to the outside and the washing can be performed several times while blocking contact with air. In particular, it is very preferable to filter and wash the product that should not be exposed to oxygen, and it is not necessary to flow the product out of the filter in order to wash the product several times, thereby reducing the washing time.

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

The present invention provides a filter device capable of filtration of the precipitate in both directions, which can be washed several times in the filter without having to carry out the filtered precipitate to the outside.

The filter unit, which can wash the filtered precipitate several times in the filter housing,

A housing having a space formed therein;

Filter members (410, 420) positioned at both ends of the inner space of the housing to filter precipitates in the mixed solution;

A mixed liquid inlet / outlet (210, 220) formed in a vertical direction on an outer side surface between the filter members (410, 420) of the housing, for supplying the mixed liquid to the filter housing and withdrawing the washed precipitate; And

The filter member 410, 420 is composed of a solvent inlet and outlet (310, 320) for supplying or withdrawing the precipitate-forming solvent or washing solvent at both ends of the outer housing housing.

The mixed solution refers to a solution containing a component containing a precipitate or a component to be precipitated when a precipitate forming solvent is added.

The housing may be in any form as long as it can transport the solvent to both sides of the solvent inlets and outlets 310 and 320 using a solvent, but may have a cylindrical shape (FIG. 1), a semi torus shape (FIG. 2), or a cylinder. It is preferable that it is any one shape selected from the curved form (FIG. 3) which further attaches a cylinder to an obtuse angle to the line parallel to a cylinder side surface at both ends of a shape, and has a filter member at the end of the attached cylinder further. Hereinafter, the cylindrical shape of the housing is a straight cleaning filter, the semi-torus shape is a semi-circular cleaning filter, the curved shape is called a curved cleaning filter. The obtuse angle formed by the cylinder further attached to the curved washing filter may be selected from any one of angles corresponding to 90 ° to 180 °, and more preferably between 120 ° and 160 °.

In the case of a straight washing filter, it is easy to produce, install and operate, but since the direction of gravity and the direction of gravity are vertical as shown around the filter element of FIG. 1, the precipitate filtered and washed by gravity is directed downward and filtered. And washing may not be uniform. In order to solve this problem, a linear filter may be installed in a direction parallel to gravity, but in this case, excessive filtering may be performed on the lower filter member, and thus the performance of the filter member may be drastically reduced. However, in the case of the curved washing filter, since the gravity is dispersed by an additionally attached cylinder having an obtuse angle with the side of the filter housing, downward pull due to gravity, which is a problem of the linear filter, may be alleviated. Furthermore, since the semicircular filter is horizontally aligned with the direction in which the filter is filtered, the pulling phenomenon due to gravity is solved.

The mixed liquid inlet and outlet 210 and 220 supply a mixed liquid in a liquid state and discharge the precipitate which has been filtered and washed. When exiting, the solid precipitate may be discharged by pressurizing to a suspension state, which is a conventional method, or by suction.

The filter members 410 and 420 may select and use any one or more of commonly used metals, ceramics or synthetic resins having appropriate mechanical strength and durability. When two or more filter members 410 and 420 are selected, they may be formed in a stacked form. In addition, the filter members 410 and 420 may be installed together with a filter matrix for installing the filter members 410 and 420 which are commonly used. In the present invention, the filter members 410 and 420 are generally referred to. The matrix for installing the filter members 410 and 420 may also be used. The matrix may provide a place to secure the filter members 410 and 420 to the filter housing and to replace when replacing the filters in the filter members 410 and 420.

In addition, the synthetic resin may be composed of any one or more of polysulfone, polyvinyl alcohol, polymethyl methacrylate, cellulose acetate and polyolefin. The metal may be composed of any one selected from iron, stainless steel, titanium, copper or duralumin. The ceramic may be prepared by mixing any one or more of kaolin, clay, or ocher, and may be prepared by further mixing inorganic particles such as ganbanite, illite, bamboo salt, zeolite or silver nanoparticles to improve functionality.

The material of the matrix for installing the filter members 410 and 420 may be any material having appropriate mechanical strength, chemical safety and durability, and preferably polycarbonate, polysulfone, polypropylene, acrylic resin, acrylonitrile- Butadiene-styrene (ABS) resin and modified polyphenylene ether (PPE) resin can be selected and used.

In addition, in order to clean the material caught in the filter member (410, 420) during washing, it is necessary to apply hydraulic pressure in the reverse direction. However, when there are many substances stuck in the filter members 410 and 420, the ultrasonic filter element 410 and 420 generated by the ultrasonic oscillator 500 mounted outside the position where the filter member is installed while simultaneously applying hydraulic pressure in the reverse direction. Vibration may be caused to excite the material stuck to the filter members 410 and 420 to clean more efficiently. Using this method improves the performance of the filter elements 410 and 420 and the cleaning rate.

The solvent inlet and outlet (310, 320) is supplied with a solvent for forming a precipitate to form a precipitate in the solution when supplied in a solution state that does not contain a precipitate, in the case of a mixed solution in which a precipitate is formed or a precipitate is formed to wash the precipitate Another washing solvent is supplied. The solvent inlets 310 and 320 are respectively present at both ends of the housing, so that the precipitate can be washed several times inside the housing without spilling out the precipitate. When washing several times inside the housing, the solvent for cleaning is supplied from one side of the solvent inlet and outlet (310, 320) and withdrawn to the other side, and once the supply of the solvent for cleaning is finished, the solvent is supplied in the opposite direction to the washing. It is washed while leaving.

Supply or withdrawal of a solvent or a mixed liquid can use a conventional compressor and / or an inhaler.

In the cleaning process, an agitator (not shown) may be additionally installed in the housings 110, 120, and 130 to further increase the cleaning rate.

1 is a cross-sectional view of a straight wash filter.

2 is a semicircular washing filter cross-sectional view.

3 is a cross-sectional view of a curved wash filter.

<Code Description of Main Parts of Drawing>

110: straight wash filter housing 120: curved wash filter housing

130: curved cleaning filter housing

210: mixed liquid inlet and outlet 211: valve 220: mixed liquid inlet and outlet 221: valve

310: solvent inlet and outlet 311: valve 320: solvent inlet and outlet 321: valve

410: filter member 420: filter member

500: Ultrasonic Oscillator

Claims (4)

A filter device capable of washing the filtered precipitate several times in the filter housing, Housings 110, 120, and 130 having a space formed therein; Filter members (410, 420) positioned at both ends of the inner space of the housing to filter precipitates in the mixed solution; A mixed liquid inlet / outlet (210, 220) formed in a vertical direction on an outer side surface between the filter members (410, 420) of the housing and supplying a mixed liquid containing a compound to be filtered and washed to the filter housing and leaving the washed precipitate out; And And a solvent inlet / outlet (310, 320) for supplying or withdrawing the precipitate-forming solvent or the washing solvent at both ends of the outer housing of the housing in which the filter members (410, 420) are located. The washing filter as claimed in claim 1, wherein the housing has any one shape selected from straight, semi-circular and curved. The filter of claim 1, wherein the filter is any one or two or more materials selected from synthetic resin, metal, ceramic, and paper. The cleaning filter as claimed in claim 1, further comprising an ultrasonic oscillator (500) mounted outside the filter member (410, 420).

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