KR20010092039A - Extracting device of water contained sludge-sol - Google Patents

Abstract

PURPOSE: A discharge equipment of liquid contained in sludge is provided, which can remove completely water generated at basin of sludge storage, so that can save treatment cost of sludge and reduce the weight of sludge thus shortening treatment time. CONSTITUTION: The system comprises the followings: a cylindrical body(100) of conical bottom covered with a cover(110); many filter membranes(102) which are connected to the side bottom of the body(100); a discharge line(108) that is vertically inserted at the center part of the body(100) to the bottom, the other end of which is extended to outer side; a gas-liquid separator(200) that is connected to the end of the discharge line(108); an air suction line(308) that is connected to the cover(110) of the body(100); and a control part(300) that has a timer(304) for controlling opening time of actuating valve(306) according to signal of water level of water level detecting member(116).

Description

Semi-solid liquid discharge device {EXTRACTING DEVICE OF WATER CONTAINED SLUDGE-SOL}

The present invention relates to a device for filtering and removing water contained in a semi-solid sludge (SLUDGE), and more specifically, extracting and discharging only water from a mixture of semi-solid sludge and water generated during use of cooling water in a steel mill. The present invention relates to a liquid discharge device contained in a semi-solid to enable the efficient disposal of pure sludge only.

In general, the work process of a steel mill with a high temperature has a cooling water line for cooling a facility or a product to a certain temperature is piped over almost the entire facility.

The cooling water that performs the cooling operation while moving along the cooling water line is circulated and operated according to a predetermined condition, and various impurities, such as oil, dust, scale, soil, and small sand, are mixed from the outside to recover the passage of the cooling water. It accumulates and accumulates on the bottom of BASIN, a temporary storage passage.

The sediment deposited sediment (hereinafter referred to as 'sludge') is deposited in a certain amount on the bottom of the besin is collected and disposed of.

By the way, the sludge is recovered from the cooling water, so if it stays in the besin for a long time, the water forms a layer on the upper side of the sludge.

Therefore, it is possible to dispose only the sludge only after the operation of discharging the water located in the upper layer of the sludge by the pump or the discharge means is preceded.

However, even if the continuous water discharge operation is preceded, it is difficult to completely discharge the water coming out, and the time required for the complete discharge of the water is excessively high, resulting in a problem that the operation efficiency of the equipment is significantly reduced.

Conventionally, in order to solve such a problem, a plurality of layers of gravel are disposed on the bottom surface of the storage tank Besin, and water and sludge are discharged through a mixture of sludge and water, or the sludge has a larger specific gravity than water. When a small amount of water (floating on the upper side) is generated, a method of evaporating the supernatant water by exposure to sunlight has been devised.

However, in the former case, a large amount of sludge is deposited between the gravel, and the gap between the gravel is filled with snow filling phenomenon, so that the gravel functioning as a filter cannot perform the function at all and the separation efficiency is significantly reduced. In the latter case, it is necessary to open and cover the upper surface of the besin, as well as to open and close it at any time, and when the weather is not good, for example, in the rainy season, the disadvantage is that the function is lost.

The present invention was devised to solve this problem in view of the above-described problems of the prior art, and has a discharge mechanism that is maintained for a long time in a state of being submerged in sludge to naturally absorb only a small amount of water and discharge it to the outside of the basin. It is an object of the present invention to provide a liquid discharge device contained in a semi-solid so that the separation efficiency of water and sludge can be significantly improved.

1 is a schematic separation cross-sectional view of the discharge device according to the invention,

Figure 2 is a cross-sectional view of the operating state of the discharge device according to the invention.

Explanation of symbols on the main parts of the drawings

1: Besin, 100: Body,

102: filter network, 104: non-return valve,

108: discharge pipe, 110: cover,

116: water level detection member, 200: gas-liquid separator,

202: upper plate, 204: lower plate,

208: sound absorption plate, 214: flexible hose,

300: control unit, 302: level detection unit,

304: timer, 306: operating valve,

308: air suction pipe.

An object of the present invention described above is closed all the surfaces except the upper surface is sealed by the cover and the lower body has an internal hollow body having a conical shape; A filter net having a filter function installed to communicate with the inside of the lower outer periphery of the body; A discharge pipe penetrating through the cover and having one end positioned close to the bottom surface of the inside of the body and the other end exposed to the outside of the body; A gas-liquid separator connected to the exposed end of the discharge pipe; An air suction pipe disposed through the cover to communicate with the inside of the body, and having an operation valve installed at a part thereof; And a control unit having a timer for controlling the opening and closing of the actuating valve by the water level detection signal of the water level detecting member such as the float switch installed inside the body.

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

1 is a cross-sectional view showing a preferred embodiment for explaining the present invention.

As shown in Figure 1, the liquid discharge device of the present invention is large body 100, the discharge pipe 108 embedded in the body 100, and the gas-liquid separator 200 connected to the discharge pipe 108 to separate the gas liquid ), And a controller 300 connected to detect the water level of the water flowing into the body 100 to control the discharge of water to the outside of the body 100 through the discharge pipe 108 when the introduced water reaches a predetermined level. It is composed.

Body 100 is a cylindrical body in which all surfaces except the upper surface is closed, the lower end is formed in a conical shape.

A pair of suction pipes 106 are formed adjacent to a lower end of the conical body 100 so as to face each other, and the suction pipe 106 is connected to the filtering network 102.

The filter network 102 is preferably installed as replaceable as a filter having a mesh enough to filter only the water contained in the sludge.

In particular, a backflow prevention valve 104 is installed at the connection portion between the filter network 102 and the suction pipe 106, and the backflow prevention valve 104 has once introduced water through the suction pipe 106 when an external pressure is generated. This is to prevent the discharge again to the outside of the body (100).

In addition, the suction pipe 106 is preferably formed by extending toward the side of the body 100 and vertically bent upwards, which utilizes the property of water to move from the upper side to the lower side by gravity to maximize the sludge and water. This is for easy separation.

The cover 110 is fixed to the upper surface of the open body 100.

The cover 110 allows the flange portion, which is the outer edge thereof, to be fixed to the upper surface of the body 100 by a plurality of bolts 112 and at the same time to completely seal the open portion.

Although not shown, a sealing member such as a gasket may be interposed between the cover 110 and the body 100.

Discharge pipe 108 is a 'b' shaped pipe through the cover 110 is piped inside the body (100).

The end of the discharge pipe 108 is preferably disposed so as to be adjacent to the inner bottom surface of the body 100, it is preferable to form corresponding to the bottom shape of the body (100).

The gas-liquid separator 200 has an inlet pipe 218 and an outlet pipe 220 on its front and rear surfaces, respectively, and a drain pipe 210 extending downward is formed on the outer circumferential side thereof.

The inlet pipe 218 is connected to one end of the discharge pipe 108 by the flexible hose 214, the clamps (212a, 212b) are provided at both ends of the flexible hose 214, the discharge pipe 108 side And the inlet pipe 218 side are closely connected.

Outflow pipe 220 is bent and extended toward the upper bar, which is for the smooth discharge of the gas discharged through the outlet pipe 220.

The drain pipe 210 is a pipe through which the liquid separated through the gas-liquid separator 200, that is, the water is drained, and is provided with a reservoir 206 or a drainage channel directly below the drain pipe 210.

A plurality of plates are provided inside the gas-liquid separator 200, for example, upper and lower plates 202 and 204 and sound absorbing plates 208.

The upper plate 202 is fixed to the upper side of the inner periphery of the gas-liquid separator 200 and is formed to extend in a downward direction with a slight distance from the lower side of the inner periphery, the lower plate 204 is the upper plate 202 It is installed so as to be spaced apart from the outlet tube 220 at a predetermined distance and have an opposite shape with the upper plate 202.

This is to minimize noise caused by friction generated when the air discharged by external pressure is discharged to the outside and at the same time, the passage flow path is formed as long as possible to sufficiently separate and remove a large amount of moisture. It can be understood as a structure such as.

In order to minimize noise, a separate sound absorbing plate 208 is provided in front of the upper plate 202, and the sound absorbing plate 208 is provided with a plurality of holes 216.

The location of the sound absorbing plate 208 is preferably provided at the rear of the adjacent drain pipe 210 located directly above the reservoir 206.

The controller 300 includes a water level detector 302 and a timer 304.

The water level detection unit 302 is electrically connected to the water level detection member 116 installed inside the body 100.

The water level detecting member 116 is, for example, a float switch, so as to perform a switching function using a so-called bowl.

The water level detecting member 116 floats on the water introduced into the body 100 and is configured to send an electric signal when the water level rises above a certain range.

To this end, the water level detecting member 116 is preferably attached to the discharge pipe 108 installed in the body 100, for example, is fixed to the outer peripheral surface of the discharge pipe 108 by a fixture 114, such as a band.

The installation height may have various heights from the bottom surface of the body 100 according to the needs of the user, but here it is preferable to be located slightly downward than the installation position of the filtering network 102.

This is to correspond to the maximum capacity of the body 100, because the water level of the filtered inflow can not be higher than the filter network (102).

The water level detecting member 116 performs only a simple switching function, so that the water level detecting member 116 operates only when the water level changes, that is, near the water level (the maximum level that can be detected by the water level detecting member). It is to be sent to the water level detection unit 302.

The timer 304 is an element that receives the signal from the water level detection unit 302 and controls to open and close the operation valve 306 for a predetermined time.

The actuating valve 306 is the same as the solenoid valve and is turned on / off by the control signal of the timer 304.

The operation valve 306 is installed in the air suction pipe 308 to adjust the amount of air supplied from the outside, that is, the air pressure.

The air suction pipe 308 is to be installed in communication with the body 100, for one end thereof is penetrated through the cover 110 and is disposed with a suitable sealing structure.

In addition, it is preferable to install a plurality of filters 310a and 310b for filtering the air supplied to a part of the air suction pipe 308.

Although not illustrated, one end of the air suction pipe 308 is provided with means for supplying air at an appropriate pressure, such as a pump or an air cylinder.

In addition, a rope R is provided for easily installing and releasing the liquid discharge device having the above-described configuration.

Rope (R) is preferably used to be fixed to the cover (110).

The discharge device of the present invention having such a configuration is operated as shown in FIG.

First, the sludge S contained in part of the cooling water supplied and recovered along the cooling water line is deposited and deposited on the besin 1 as shown.

When a certain amount of sludge S is accumulated in the interior of the besin 1, it must be discharged to the outside to be disposed of. At this time, the water contained in the sludge S, that is, water is completely removed and then disposed of. desirable.

To this end, the discharge device of the present invention is immersed into the sludge (S) accommodated in the besin (1) using a rope (R).

The depth of the submerged discharge device can be adjusted as needed, and if the discharge device remains submerged in the sludge (S) for a long time, the water drawn out is taken through the filter network 102 and the body through the suction pipe 106. 100) It will flow inside.

Since the filter net 102 is used for a long time, the snow filling phenomenon is generated by the sludge (S), it is preferable to check or replace from time to time to use or wash.

Water introduced into the body 100 through the suction pipe 106 is not allowed to flow out of the back of the filter network 102 by the non-return valve 104 to be continuously leaked into the body 100.

In the present invention, the installation of two suction pipes 106 has been described as an example, but in order to efficiently separate and extract moisture contained in the sludge S in a short time, a plurality can be installed, as well as the installation method described above. As shown.

In this way, the water contained in the sludge (S) is stored in a certain amount in the bare or the body 100, and the water level detection member 116 is activated when the storage amount reaches a certain level.

The water level detecting unit 302 of the control unit 300 receiving the detection signal of the water level detecting member 116 immediately transmits the received signal to the timer 304 side of the control unit 300.

The timer 304 receives a signal from the water level detection unit 302 and simultaneously opens a control valve 306 for a preset time, and controls a control signal to automatically close the operation valve 306 when the set time elapses. It is sent out to control the operation valve 306.

Simultaneously with opening of the operation valve 306, air is forced into the body 100 through the air suction pipe 308.

Forced air is to press the upper side of the water surface and the water stored in the body 100 by the pressing force is discharged to the outside through the discharge pipe (108).

Subsequently, when the set time has elapsed, the operation valve 306 is automatically locked and at the same time, the supply of air that is supplied is cut off and the discharge operation of the water stored in the body 100 through the discharge pipe 108 is terminated.

On the other hand, the mixture of air and water discharged through the discharge pipe 108 is moved to the gas-liquid separator 200 via the flexible hose 214.

The mixture introduced into the gas-liquid separator 200 interferes with the initial sound absorbing plate 208 so that most of the water is discharged and stored in the reservoir 206 through the drain pipe 210 and some water and air pass through the sound absorbing plate 208. Interference with the upper plate 202 and the lower plate 204.

Water is completely separated from the air while passing through the two diaphragms 202 and 204. The air is discharged into the atmosphere through the outlet pipe 220 and the water is returned through the hole 216 of the sound absorbing plate 208. Take the 210 is discharged to the reservoir (206).

In this process, not only the separation of water and air, but also the noise of the mixture of air and water discharged by pneumatic pressure is almost eliminated.

That is, while the sound absorbing plate 208 and the upper and lower partitions 202 and 204 pass through, the high pressure of the mixture is substantially matched to the atmospheric pressure by the same principle as the muffler of the automobile, so that almost no noise is generated.

By repeating this process from time to time or periodically, it is possible to completely remove the water contained in the sludge S of the besin 1, and thus it is possible to efficiently dispose only the sludge S.

As described in detail above, the liquid discharge device contained in the semi-solid according to the present invention provides the following effects.

First, the water generated in the basin sludge storage can be easily and completely removed in a short time it is possible to significantly reduce the secondary cost of the sludge treatment.

Second, it is possible to significantly reduce the amount of waste treatment, that is, the weight of sludge during transportation and landfill for sludge disposal, thereby providing environmental protection as well as shortening the treatment time of sludge.

Third, by reducing the treatment time of the sludge provides an advantage that the downtime of the equipment is reduced and the operation rate of the equipment is increased.

Claims (3)

All the surfaces except the upper surface sealed by the cover 110 are closed and the lower body has a hollow body 100 having a conical shape; A filtering net 102 having a filter function installed on the lower outer periphery of the body 100 so as to communicate with the inside thereof; A discharge pipe 108 penetrating through the cover 110 and having one end positioned close to the bottom surface of the body 100 and the other end exposed to the outside of the body 100; A gas-liquid separator 200 connected to the exposed end of the discharge pipe 108; An air suction pipe 308 disposed through the cover 110 to communicate with the inside of the body 100 and having an operation valve 306 installed and controlled in a part thereof; It includes a control unit 300 having a timer 304 for controlling the opening and closing of the operation valve 306 by the water level detection signal of the water level detection member 116, such as a float switch installed inside the body 100 Semi-solid liquid discharge apparatus characterized in that the. The method of claim 1, wherein the filter net 102 is detachably fixed to the suction pipe 106 extending from the lower outer periphery of the body 100, The liquid discharge device contained in the semi-solid, characterized in that the non-return valve 104 is installed between the suction pipe 106 and the filter network (102). According to claim 1, The gas-liquid separator 200 is formed of a tubular body of the front, rear is closed, the front is formed with an inlet pipe 218 connected to the discharge pipe 108, On the back is formed an outlet pipe 220 through which air is discharged. One side of the peripheral portion is formed with a drain pipe 210 is in communication with the outside, A sound absorbing plate 208 having a plurality of holes 216 is fixed to an adjacent rear side of the drain pipe 210 toward the outlet pipe 220 from the drain pipe 210. At an adjacent rear side at a distance from the sound absorbing plate 208, an upper plate 202 is formed which extends from the upper side of the inner circumference and opens a lower portion thereof. A semi-solid liquid discharge apparatus, characterized in that the lower plate 204 is formed at a distance from the upper plate 202 and the adjacent rear side is extended upward from the lower side of the inner circumference and the upper portion is open.