KR200450427Y1 - A Liquid Sludge Cake-Making Apparatus for A Pressure Pre-Coat Filter System - Google Patents

Abstract

The present invention relates to a device for cake of the liquid sludge separated and discharged by a pressure precoat filter using a filter filter, according to the present invention, through a precoating, filtration and backwashing process by a pressure precoat filter A sludge thickening tank 110 for storing liquid sludge separated and discharged from the filter tower; A sludge pump 120 for forcibly transferring the liquid sludge stored in the sludge thickening tank 110 through a sludge conveying pipe (P1); And is connected to the sludge concentration tank 110 by the sludge conveying pipe (P1), is connected to the compressed air storage tank 130 and the compressed air supply pipe (P2), the liquid sludge forcibly transported by the sludge pump 120 And a liquid sludge cake machine 200 which separates the wastewater as the filtrate from the cake and cakes the solid sludge S1 after the wastewater as the filtrate is separated by the compressed air injected through the compressed air supply pipe P2. It is characterized by. According to the configuration as described above, there is an advantage that can be separated from the wastewater which is the filtrate in the liquid sludge and cake the solid sludge in a small volume.

Precoat filter, liquid sludge, cake forming device, hydraulic cylinder, air spray

Description

A liquid sludge cake-making apparatus for a pressure pre-coat filter system

The present invention relates to a pressure precoat filter using a filter filter, and in particular, a pressure precoat filter using a filter filter which is suitable for separating wastewater which is a filtrate from a liquid sludge and making a solid sludge cake into a small volume. It relates to a cake forming apparatus of the liquid sludge separated and discharged by.

Pressure-free using a filter filter, a device for filtering and purifying liquid contaminants such as industrial wastewater, municipal sewage, manure, industrial wastewater, and car wash wastewater using filtration filters such as diatomaceous earth, activated carbon, cellulose, zeolite, and backlight Coat filtration devices are known in various known forms, including Register No. 0440876 (designation name: filtration using diatomaceous earth).

In addition, the diatomaceous earth is the most widely used among the filter medium, the diatomaceous earth is white or gray white, the particle size of the fine algae (藻類) of several micrometers to several tens of micrometers, silicic acid is the main component, and the powder particles have a number of small pores It is characterized by being formed.

A pressure precoat filtration device using a conventional filtration filter is used to filter and purify raw water through a precoating process, a filtration process, and a backwashing process using various filtration filters including diatomaceous earth. The liquid sludge, which is a mass of the sludge coating layer, is discharged.

In addition, the liquid sludge which is the final byproduct after the raw water filtration treatment was disposed of by using various known filter presses.

However, in the case of disposing the liquid sludge by using the filter press as described above, the filter press equipment itself is expensive and the processing cost is high, and the volume that can be reduced even if the liquid sludge is solidified in the flat form by the filter press is limited. Due to the large volume of solidified liquid sludge, there are problems in that there are many difficulties in disposal.

The present invention was created to solve the problems of the prior art as described above, and the purpose of the cake sludge purification device of the liquid sludge separated and discharged by the pressure precoat filter using the filter medium according to the present invention, the filtrate in the liquid sludge A cake-making apparatus for liquid sludge separated and discharged by a pressure precoat filter using a filtration filter that separates wastewater and solid sludge so that the wastewater as a filtrate can be reused for economic benefits. To provide.

Another object of the cake-making apparatus of the liquid sludge separated and discharged by the pressure precoat filter using the filter medium according to the present invention is to cake the solid sludge from which the wastewater, which is filtrate, is separated from the liquid sludge by high pressure compressed air. Filtering agents that are suitable for minimizing the volume of caked solid sludge, reducing the cost and time for cakeing, and thus reducing the overall cost, and minimizing soil contamination from waste. The present invention provides a cake forming apparatus for liquid sludge separated and discharged by a pressure precoat filter.

The cake of the liquid sludge separated by a pressure precoat filter using a filter filter of the present invention for achieving the above object is filtered through a precoating, filtration and backwashing process by a pressure precoat filter A sludge thickening tank storing liquid sludge separated and discharged from the tower; A sludge pump for forcibly transferring the liquid sludge stored in the sludge concentration tank through a sludge transport pipe; And is connected to the sludge concentration tank by the sludge conveying pipe, connected to the compressed air storage tank and the compressed air supply pipe, separating the wastewater which is filtrate from the liquid sludge forcibly transported by the sludge pump, and is injected through the compressed air supply pipe It characterized in that it comprises a liquid sludge cake machine for cake the solid sludge after the separation of wastewater as filtrate by compressed air.

The cake-making apparatus of the liquid sludge separated and discharged by the pressure type precoat filter using the present invention filter filter having the configuration as described above has the following effects.

First, by separating the wastewater and the filtrate sludge from the liquid sludge and to reuse the wastewater as the filtrate, there is an effect that can be obtained economic benefits by the reuse of the wastewater.

Second, by solidifying the sludge from the liquid sludge, which is the filtrate wastewater, by high pressure compressed air, the volume of the caked solid sludge can be minimized and the cost and time for the cake can be reduced. It can be implemented, and there is an effect that can minimize the soil pollution due to waste.

Next will be described in detail with reference to the accompanying drawings a preferred embodiment of the liquid sludge cake forming apparatus separated and discharged by a pressure precoat filter using the present invention filter filter.

FIG. 1 is a block diagram of a cake forming apparatus for liquid sludge separated and discharged by a pressure precoat filter using a filter filter according to an embodiment of the present invention, and FIG. 2 is an enlarged view of main parts of FIG. 1. 3 to 5 show the operation of the cake sludge cake apparatus of the liquid sludge separated and discharged by a pressure precoat filter using a filter medium according to an embodiment of the present invention.

As shown in FIGS. 1 to 5, the cake sludge forming apparatus (A) of liquid sludge separated and discharged by a pressure precoat filter using a filter filter according to an embodiment of the present invention is a pressure precoat filter ( Sludge concentration tank 110 for storing the liquid sludge separated and discharged from the filtration tower (not shown) through the pre-coating process, filtration process and backwashing process, and the liquid sludge stored in the sludge concentration tank 110 Sludge pump 120 forcibly transported through the pipe (P1), and is connected to the sludge concentration tank 110 by the sludge conveying pipe (P1), connected by a compressed air storage tank 130 and a compressed air supply pipe (P2). The wastewater, which is filtrate, is separated from the liquid sludge forcibly transported by the sludge pump 120, and the filtrate is separated by the high pressure compressed air injected through the compressed air supply pipe (P2). It characterized in that it comprises a liquid sludge cakeizer 200 for cake the solid sludge (S1) after being made.

The sludge conveying pipe (P1) is provided with a valve (V1) for controlling the flow of the liquid sludge flowing through the sludge conveying pipe (P1), the high pressure flowing through the compressed air supply pipe (P2) in the compressed air supply pipe (P2). Is provided with a valve (V2) for regulating the flow of compressed air.

In addition, the liquid sludge cake machine 200, the mounting frame 210, the sludge inflow tube 220, the sludge strainer assembly 230, and the dehydration panel 240 and the hydraulic cylinder 250 is characterized in that it comprises a It is done.

The mounting frame 210 is configured to mount the sludge inflow tube 220, the caster (C1) may be mounted on the base (210a) for ease of movement.

The sludge inlet 220 is fixed to the mounting frame 210 is installed, is connected to the sludge conveying pipe (P1) and the compressed air supply pipe (P2) flows into the liquid sludge and compressed air, the lower opening 220a Is formed and a first flange 221 extending radially outward from the outer circumferential surface of the opening 220a is formed.

The sludge inflow tube 220 can be seen as a shape in which the cylinder is upside down.

The sludge strainer assembly 230 is provided below the opening 220a of the sludge inlet 220, and passes the wastewater, which is filtrate, from the liquid sludge inside the sludge inlet 220 and filters the solid sludge S1. .

The dehydration panel 240 has a second flange 241 is formed radially outward from the upper end of the outer peripheral surface, the second flange 241 is the first flange 221 in the lower side of the sludge inflow tube 220 Close to the sludge inflow tube 220, the sludge strainer assembly 230 is contained in the waste space formed by the close contact of the first flange 221 and the second flange 241, and The wastewater, which is the filtrate that has passed through the sludge strainer assembly 230, is discharged through the filtrate discharge pipe P3 in order to filter and reprocess it.

The filtrate discharge pipe (P3) is provided with a valve (V3) for controlling the flow of waste water flowing through the filtrate discharge pipe (P3).

The hydraulic cylinder 250 is in close contact with the second flange 241 to the first flange 221 to close the dehydration plate 240 to the sludge inlet 220 or in close contact with the sludge inlet 220 The dehydration panel 240 is configured to elevate the dewatering panel 240 so as to be separated from the sludge inflow tube 220.

That is, the hydraulic cylinder 250 is mounted on the lower surface of the dehydration panel 240 to raise the dehydration panel 240 so that the second flange 241 is in close contact with the first flange 221. Presses upwards in the direction in which the sludge inflow tube 220 is located, and the dewatering plate 240 in a state where the second flange 241 is in close contact with the first flange 221 is separated from the sludge inflow tube 220. It performs the action of lowering the dehydration board 240 downward.

In addition, the sludge strainer assembly 230 is interposed between the first flange 221 and the second flange 241 so that the wastewater, which is the filtrate of the liquid sludge, is interposed between the first flange 221 and the second flange. In the liquid sludge inside the sludge inlet 220 is provided integrally with the annular rubber 231 inside the annular rubber 231 to seal the gap between the 241 and the thin rubber It is characterized by consisting of a sludge strainer 232 for passing the wastewater that is the filtrate and filtering the solid sludge (S1).

Preferably, the sludge strainer 232 is characterized in that it is formed convexly downward in the direction of the hydraulic cylinder (250).

The cake sludge filter (A) of the liquid sludge separated and discharged by the pressure type precoat filter using the filter medium according to an embodiment of the present invention, the solid sludge (S1) filtered by the sludge strainer 232 is caked In order to remove the high pressure compressed air inside the sludge inflow tube 220, the compressed air drainage pipe (P4) connected to one side of the sludge inflow pipe (220) and the compressed air drainage pipe (P4) is installed The valve V4 is further characterized in that it is configured to be configured.

In addition, in the cake sludge forming apparatus (A) of the liquid sludge separated and discharged by a pressure precoat filter using a filtration filter according to an embodiment of the present invention, the opening 220a of the sludge inflow tube 220 is downward. It is characterized in that the tapered toward the outer side in the radial direction.

According to the configuration as described above, there is an advantage that can be smoothly lowered downward by the operation of the hydraulic cylinder 250 caked solid sludge (S2).

The cake slitting device (A) of liquid sludge separated and discharged by a pressure precoat filter using a filtration filter according to an embodiment of the present invention comprises a plurality of guide holes 241a formed through the second flange 241. And, the lower end is fixed to the base (210a) of the mounting frame 210 and the upper end is fixed to the first flange 221, is inserted into the guide hole (241a) to guide the lifting of the dehydration panel 240 Characterized in that it further comprises a plurality of guide rods 260 to.

The following describes the operation process of the liquid sludge cake forming apparatus separated and discharged by a pressure precoat filter using the present invention having a filter structure as described above.

By operation of a pressure precoat filter (not shown) using a filter medium, the liquid sludge separated and discharged by the precoating process, the filtration process and the backwashing process is transferred to the sludge concentration tank 110.

Then, when the hydraulic cylinder 250 is pressurized by the dehydration panel 240, the dehydration panel 240 is in close contact with the sludge inflow tube 220 via the sludge strainer assembly 230.

The valves V1 and V3 are now open and the valves V2 and V4 are closed to drive the sludge pump 120.

The liquid sludge stored in the sludge thickening tank 110 is driven by the sludge pump 120 and is introduced into the sludge inflow tube 220, and the introduced solid sludge S1 is collected in the sludge strainer 232 and is in the liquid sludge. Wastewater, which is filtrate, is passed through the sludge strainer 232 and discharged to the filtrate discharge pipe P3 through the dehydration pan 240 to be reprocessed (filtrate drainage process).

In addition, the differential pressure in the waste space formed by the sludge inflow tube 220 and the dewatering plate 240 is gradually increased by the continuous operation of the sludge pump 120 to automatically drive the sludge pump 120 when the set value is reached. Is stopped, and the dewatering process of the wastewater serving as the filtrate is terminated (dehydration process).

Subsequently, while the valve V2 is opened, compressed air having a high pressure stored in the compressed air storage tank 130 flows through the compressed air supply pipe P2, and the cake sludge process of the solid sludge S1 is performed.

That is, when high-pressure compressed air is injected into the waste space formed by the sludge inflow tube 220 and the dehydration panel 240 through the compressed air supply pipe P2, the sludge strainer 232 by the high-pressure injection action of the compressed air. ) Solid sludge (S1) that has been trapped by the () is caked as the volume is significantly reduced (cakemaking process).

Waste water, which is a small amount of filtrate remaining in the solid sludge S1 in the cake forming process, may come out.

When the cake of the solid sludge S1 is completed, the valve V4 is opened to remove the high-pressure compressed air in the waste space formed by the sludge inlet 220 and the dehydration pan 240, and then the hydraulic cylinder 250 is operated. Dewatering board 240 is lowered down to separate and separated from the sludge inlet 220.

If the compressed air draining pipe (P4) through the operation of the hydraulic cylinder 250 immediately in the state of not extracting the dehydration tank 240, the sludge inlet 220 and the dehydration panel 240 is formed. Since the pressure difference between the inside and outside of the waste space is very large, there is a risk of explosion, and therefore, the dehydration pan 240 must be separated after extracting the high pressure compressed air through the compressed air draining pipe (P4).

After lowering the dewatering pan 240 as described above, after separating the sludge strain net assembly 230 spanning the interior of the dewatering pan 240, the caked solid sludge (S2) in the sludge strain net 232. Dispose of it.

The embodiment of the present invention is just one embodiment of the technical idea of the present invention, and in the person skilled in the art, other modified embodiments are possible within the technical idea of the present invention.

1 is a block diagram of a liquid sludge cake forming apparatus separated and discharged by a pressure precoat filter using a filtration filter according to an embodiment of the present invention.

2 is an enlarged view illustrating main parts of FIG. 1.

3 to 5 are operation diagrams of the cake-making apparatus of the liquid sludge separated and discharged by a pressure precoat filter using a filtration filter according to an embodiment of the present invention.

          Explanation of symbols on the main parts of the drawings

110; Sludge concentration tank 120; Sludge pump

130; Compressed air storage tank 200; Liquid Sludge Cake Machine

210; Mounting frame 220; Sludge inlet

220a; Opening 221; First flange

230; Sludge strainer assembly 231; Annular rubber

232; Sludge strainer 240; Dehydration

241; Second flange 241a; Guide ball

250; Hydraulic cylinders 260; Guide rods

P1; Sludge feed pipe P2; Compressed Air Supply Pipe

P3; Filtrate discharge pipe P4; Compressed air drainage

V1, V2, V3, V4; valve

S1; Solid sludge

S2; Cake Solidified Sludge

Claims (7)

delete A sludge thickening tank 110 for storing liquid sludge separated and discharged from the filtration tower through a precoating, filtration and backwashing process by a pressure precoat filter; A sludge pump 120 for forcibly transferring the liquid sludge stored in the sludge thickening tank 110 through a sludge conveying pipe (P1); And It is connected to the sludge concentration tank 110 by the sludge conveying pipe (P1), is connected by the compressed air storage tank 130 and the compressed air supply pipe (P2), from the liquid sludge forcedly transported by the sludge pump 120 And a liquid sludge cake maker 200 for separating the wastewater as the filtrate and cake the solid sludge S1 after the wastewater as the filtrate is separated by the compressed air injected through the compressed air supply pipe P2. The liquid sludge cake machine 200, A mounting frame 210; It is fixed to the mounting frame 210, is connected to the sludge conveying pipe (P1) and the compressed air supply pipe (P2) is a liquid sludge and compressed air flows in, an opening 220a is formed at the lower side and the opening 220a A sludge inflow tube 220 in which a first flange 221 extending radially outward from an outer circumferential surface thereof is formed; A sludge strainer assembly 230 provided below the opening 220a of the sludge inlet 220 to pass wastewater as a filtrate from the liquid sludge inside the sludge inlet 220 and to filter the solid sludge S1; A second flange 241 is formed radially outward from an upper end of an outer circumferential surface, and the second flange 241 is in close contact with the first flange 221 at the lower side of the sludge inflow tube 220 to inflow the sludge. The container 220 is sealed, and the sludge strainer assembly 230 is contained therein, and a dehydration pan 240 for receiving wastewater, which is filtrate that has passed through the sludge strainer assembly 230, is discharged through the filtrate discharge pipe P3. ); Is mounted on the lower surface of the dewatering pan 240, the second flange 241 is in close contact with the first flange 221 to close the dewatering pan 240 to the sludge inlet 220 or the sludge inlet Filtration filter, characterized in that it comprises a hydraulic cylinder 250 for elevating the dehydration panel 240, so that the dewatering panel 240 in close contact with the 220 from the sludge inlet 220 A cake forming apparatus for liquid sludge separated and discharged by a pressure precoat filter to be used. The method according to claim 2, The sludge filter net assembly 230, An annular rubber 231 interposed between the first flange 221 and the second flange 241 to seal a gap between the first flange 221 and the second flange 241; And Sludge strainer 232 is provided integrally with the annular rubber 231 inside the annular rubber 231 to pass the wastewater, which is filtrate, from the liquid sludge inside the sludge inlet 220 and to filter the solid sludge S1 232. A cake sludge forming apparatus for liquid sludge separated and discharged by a pressure precoat filter using a filter medium, characterized in that consisting of). The method according to claim 3, The sludge filter net 232, The cake-making apparatus of the liquid sludge separated and discharged by the pressure type precoat filter using a filter filter, characterized in that it is formed convexly downward in the direction of the hydraulic cylinder (250). The method according to claim 4, Compressed air connected to one side of the sludge inflow cylinder 220 in order to remove the high-pressure compressed air inside the sludge inflow cylinder 220 after the cake of the solid sludge (S1) filtered by the sludge strainer 232. Subtractive organ P4; And The apparatus for cake of liquid sludge separated and discharged by a pressure precoat filter using a filtration filter, characterized in that it further comprises a valve (V4) installed in the compressed air drain pipe (P4). The method according to claim 5, The opening of the sludge inlet 220 is a cake of the liquid sludge separated and discharged by a pressure precoat filter using a filter filter, characterized in that the tapered outward in the radial direction toward the downward. The method according to any one of claims 4 to 6, A plurality of guide holes 241a formed through the second flange 241; And A plurality of lower ends are fixed to the base 210a of the mounting frame 210 and upper ends are fixed to the first flange 221, and are inserted into the guide holes 241a to guide the lifting of the dehydrating plate 240. The guide rod 260 of the cake sludge forming apparatus of the liquid sludge separated and discharged by a pressure precoat filter using a filtration filter, characterized in that further comprises.

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