JPH0734926U - Filtration concentrator - Google Patents

Abstract

(57) [Summary] [Objective] In a concentrating device using a cylindrical filter element, it is proposed to easily regenerate or replace the filter element. [Structure] A horizontally installed hermetic tank is equipped with a filter unit in which a number of filter elements having one end closed are arranged in parallel, the hollow portion of the unit is led out of the hermetic tank, and the hollow portion of the unit is removed. A high-pressure fluid source was connected to the outlet end, while an undiluted solution supply port and a concentrated solution extraction port were opened in the closed tank. Since the closed tank is horizontal, it is easy to put in and take out the filter unit, and since the concentrated filtrate is led out of the closed tank through the hollow portion of the filter element, there is no high pressure part and low pressure part in the closed tank. The closed tank can be easily constructed. In addition, the regeneration of the filter element is easy only by blowing a high pressure fluid.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention proposes a device that can easily regenerate a clogged filter element and that can be easily maintained, etc., with respect to improvement of a filtration and concentration device for sludge and the like.

[0002]

[Conventional device]

 Conventionally, as a device similar to this device, there is a device disclosed in Japanese Utility Model Publication No. 57-48487. In this case, a closed tank is divided into upper and lower parts, a high-pressure filtration chamber is formed in the upper part, a filtrate chamber is formed in the lower part, and a lid that can be opened and closed is provided in the upper part of the filtration chamber.

[0003]

[Problems to be solved by the device]

 However, in the conventional device as described above, a filter chamber and a filtrate chamber must be formed in one tank, and the tank body and lid must be robustly constructed as a strength member to support the filter medium in the tank. In particular, in the case of a vertical type such as the one devised by Japanese Utility Model Publication No. 57-48487, it takes a lot of time to open and close the lid and replace the filter medium, and it is difficult to increase the size.

[0004]

[Means for Solving the Problems]

 This invention solves the above-mentioned problems, and its gist is to install it horizontally in a tank having a lid at one end and to have a cylindrical shape with one end closed. A filter unit consisting of a number of filter elements arranged in parallel is movably inserted, the hollow part of the filter element of that unit is introduced to the outside of the closed tank, and a high pressure fluid source is connected to the branch pipe from the outlet pipe. On the other hand, on the other hand, the closed tank has a stock solution supply port and a concentrated solution extraction port. A cylindrical ceramic membrane is used as the filter element that constitutes the filter unit.

[0005]

The device according to the present invention is configured as described above, that is, the closed tank that constitutes the filtration chamber and the filter unit are configured separately, and the filter unit, the tank, and the outside are separated. The communication passages are only the feed passage for the raw liquid and the take-out pipe for the filtrate. Therefore, the structure of the closed tank is simple and the structure having strength can be easily formed. In addition, since the closed tank is configured horizontally and the filter element is configured as a unit and movable in the closed tank, the filter element can be easily pulled out to the outside by opening the lid. Can be easily replaced and maintenance inside the closed tank can be facilitated. Further, since the cylindrical filter element is used to form a unit, the filtration area is wide, and by increasing or decreasing the number of units, it is possible to easily configure an apparatus suitable for a desired throughput. The present invention will be specifically described below with reference to the drawings.

[0006]

【Example】

 FIG. 1 shows a partially cut-away view of the device according to the present invention. In the figure, reference numeral 1 is a cylindrical closed tank, 2 is a unit of a filtration element loaded in the closed tank, As shown in FIGS. 1 to 3, the unit 2 can be put in and out of the closed tank 1 along a rail 3 provided in the closed tank 1.

The filtration units 2 configured as described above are connected to each other by a main pipe 4 for taking out filtrate, and a rolling wheel 2d is provided at a lower portion of the support frame 2a so as to extend along a rail 3. It can be moved. 1 and 2, reference numeral 3a is an auxiliary rail provided outside the closed tank 1, and the auxiliary rail 3a can be removed when not in use. 1 and 2, reference numeral 5 is a stock solution supply port, 6 is a filtrate outlet port, 7 is washing water supply port of the closed tank 1, 8 is a concentrate outlet port, and is an arrow. The symbol a indicates a supply path of air for backwashing to the ceramic membrane 2b, the symbol b indicates a supply channel of the air for cleaning the closed tank 1, and the symbol c indicates a discharge channel of the drain.

The device according to the present invention is configured as described above, and the undiluted solution supplied to the closed tank 1 is filtered by the ceramic membrane 2b, and the filtered solution is passed through the support tube 2c and the main tube 4. The concentrated liquid is taken out from the take-out port 6 and is stored in the closed tank 1.

When the ceramic membrane 2b is clogged by continuing the operation as described above, the amount of filtrate decreases. In such a case, the supply of the stock solution is stopped and the concentration in the closed tank 1 is reduced. After the liquid is discharged, the cleaning fluid can be sent from the filtrate outlet 6 to backwash the ceramic membrane 2b and regenerate it. The backwash fluid is taken out from the drain circuit C.

In the filtration and concentration operation and the backwashing operation of the filter medium (ceramic membrane 2b) as described above, in the present invention, the closed tank 1 is placed horizontally and the ceramic membrane 2b and the ceramic membrane 2b are independent of each other. Since the closed tank 1 to which high pressure is applied can have a simple structure, the filter medium made of the ceramic membrane 2b is used as a unit and the wheels 2d are attached to the unit, so that the closed tank 1 can be easily used. It can be put in and taken out from the housing, and the replacement and maintenance of the ceramic membrane 2b can be facilitated.

That is, as shown in FIGS. 1 and 2, by opening the lid 1a of the closed tank and connecting the rail 3a with the auxiliary rail 3a, the entire filter medium unit can be pulled out to the outside. It is possible to easily replace the ceramic membrane 2b and increase / decrease the filtration unit 2.

In the example shown in the figure, the main pipe 4 for taking out the filtrate is used to connect the filtration units 2, but in the case of a large size, an auxiliary connecting material may be used.

[0014]

[Effect of device]

 As described above, in the filtration concentrator according to the present invention, the closed tank that constitutes the filtration chamber is horizontally provided, and the unitized filter medium is movably provided in the tank, and the closed tank and the filter medium are separately provided. Since it is configured, the structure of the closed tank is simple and the filtration chamber having strength is facilitated, so that it can be easily pulled out to the outside of the closed tank, and the replacement, inspection and maintenance of the filter medium can be facilitated. Further, since the filter medium is unitized, by increasing or decreasing the number of units, it is possible to easily configure an apparatus suitable for a desired throughput.

[Brief description of drawings]

FIG. 1 is a schematic overall side view of a filtration and concentration device according to the present invention, in which a part thereof is shown in an incised state.

FIG. 2 is likewise a schematic overall side view showing a state in which the filter medium is pulled out.

FIG. 3 is a front view of a filter unit according to the present invention.

FIG. 4 is likewise a plan view of the filter unit.

[Explanation of symbols]

 1 Closed Tank 2 Filter Unit 2b Ceramic Membrane 5 Supply Port 8 Outlet

Claims (3)

[Scope of utility model registration request] 1. A filter unit 2 comprising a plurality of cylindrical filter elements 2b, one end of which is closed, is movably loaded into a closed tank 1 which is installed horizontally and has a lid at one end thereof. , The hollow portion of the filter element 2b of the unit 2 is communicated with the outside of the closed tank 1, and a high-pressure fluid source is connected to the branch pipe from the discharge pipe 3, while the closed tank 1 has a feed port for the stock solution. 5 is a filtration concentrating device having opening 5 and a concentrate outlet 8. 2. A filtration and concentration device in which the cylindrical filter element is composed of a cylindrical ceramic membrane 2b. 3. A filtration / concentration device in which the cylindrical filtration membrane according to claim 1 restrains the filamentous membrane 1a.