KR100868453B1 - Apparatus for Checking Sludge in Sludge Collector - Google Patents

Abstract

The sludge checking device of the sludge collection tank is provided to easily check the sludge accumulation level (level) in the sludge collection tank of the wastewater treatment facility.

The sludge checking device of the sludge collection tank is disposed on the upper part of the structure while a plurality of sludge suction pipes are connected, and connected to sludge checking means provided to check the individual flow of sludge in response to the suction pipes, and to the lower part of the sludge checking means, And a sludge suction means configured to allow sludge suction using an internal flow fluid, while the sludge suction pipes are provided to have different length differences at a predetermined ratio corresponding to the depth of the collection tank structure and are provided in the collection tank structure. It is connected to the upper part of the sludge checking means while being stretched higher than the flow port.

According to the present invention, by making it possible to easily check the sludge accumulation amount in the sludge collection tank for condensing sludge in the wastewater treatment facility, for example, the concentration tank, it is possible to perform the operation of the sludge collection tank more efficiently, and to avoid excessive sludge accumulation. It is possible to obtain an improved effect of improving the treatment efficiency of the wastewater with proper sludge treatment while preventing the overload of the equipment to prolong the service life of the equipment.

Sludge collection tank, thickening tank, sludge level, sludge checking device.

Description

Apparatus for Checking Sludge in Sludge Collector}

1 is a configuration diagram showing a state installed in the sludge collection tank thickening tank of the sludge checking apparatus according to the present invention

Figure 2 is an exploded perspective view showing a sludge checking device of the present inventors sludge collection tank

Figure 3 is an assembly state showing the sludge checking device of the present inventors sludge collection tank

4 is a structural diagram showing a sludge checking device of the present inventors sludge collection tank

Explanation of symbols on the main parts of the drawings

1 .... sludge checking device of sludge collector

10 .... sludge suction line 30 .... sludge checking means

32 .... Individual connection member for pipe 34 .... Transparent tube for checking sludge

36 .... Confirmation means Body member 38 .... Tube communicating member

42 .... color ball 50 .... sludge suction

52 .... Connectors 54a, 54b .... Fluid supply and discharge lines

56 .... ejector 58, 60 ...

70 ... control panel 72 ... cab

The present invention relates to a sludge checking device of the sludge collection tank to easily check the sludge level accumulated in the sludge collection tank of the waste water treatment facility, and more specifically, by enabling the check of the sludge accumulation amount in the concentration tank, the operation of the sludge collection tank more The present invention relates to a sludge checking device of a sludge collection tank which can be efficiently carried out and prevents overloading of equipment due to excessive sludge accumulation, thereby extending the service life of the equipment and improving the treatment efficiency of wastewater with proper sludge treatment.

In the sewage and wastewater treatment facilities for treating various wastewaters generated from sewage treatment plants or industrial plants, sludge collectors are used to concentrate (sediment) sludge (sludge), such as initial sedimentation basins, final sedimentation basins, and concentration tanks.

For example, the chemical waste water generated from the refining of the coke oven gas generated during the coke production of steelworks contains a large amount of phenol and organic matter.

That is, such chemical wastewater is formed as a bacterial precipitate, that is, sludge having a composition of 85% moisture, 7% volatile matter, 6% ash, 2% carbon, and the like through a conventional biochemical treatment process.

Such sludge is usually dehydrated appropriately by subsequent dehydration and then incinerated in an incinerator.

However, the sludge generated in the wastewater treatment plant is first concentrated in a sludge collection tank, for example, a thickening tank, the concentrated sludge is transferred to the mixed dehydrator, and the flocculant is mixed and dewatered together with the concentrated sludge in the mixed dehydrator.

The sludge treated in this way is incinerated in an incinerator or recently used for recycling sludge.

On the other hand, such a sludge collector, that is, a thickening tank is a siphon type, bridge running type, water cart type, chain flight type, circular type, etc., but scrapers for scraping the sludge settled at the bottom of the tank to be discharged outside. It is provided.

The thickening tank for concentrating such sludge is usually provided with a rotary drive such as a motor in the center of the circular structure, and the sludge deposited on the bottom of the sludge deposited on the bottom while the plurality of scrapers are circularly moved along the bottom of the tank as the rotary drive. Guide and discharge to the central discharge passage.

However, in such a sludge collection tank, sediment sludge accumulates, and according to the amount of sludge accumulated, the sludge discharge timing should be determined, and sludge which is excessively accumulated is rather decayed (contaminated) to generate water treatment pollution. If the sludge is excessively accumulated, the sludge discharge scraper is overloaded. Therefore, in order to efficiently operate the sludge collection tank, it is necessary to check the level of sludge accumulated in the sedimentation basin and the concentration tank.

On the other hand, the conventional method of checking the sludge level accumulated in the sludge collection tank (concentration tank, sedimentation basin, etc.) mainly uses level sensors such as ultrasonic waves and lasers, but the sensor operating environment of the sludge collection tank is poor. There were several problems with unstable operation.

For example, in sludge collection tanks such as concentration tanks and sedimentation basins, sludge particles are always settling, and there are many suspended sludge particles, which causes severe measurement errors in the measurement sensor.

In addition, the central measurement method using specific gravity difference was also difficult because the specific gravity of the sludge is not large compared with the wastewater (fresh water) supplied to the tank, and it was difficult to make accurate measurement.

On the other hand, the sludge level checking device of the thickening tank, which is another conventional technique for solving the problem according to the sensor measuring method for measuring the sludge accumulation in the thickening tank or sedimentation tank has been disclosed in the Korean Utility Model Publication No. 1996-0035299.

However, the sludge level checking device of the thickening tank presented in the above-mentioned Utility Model Publication, above all, has a problem in reprocessing the sludge flowing into the device for checking the sludge level, and has a very complex facility structure as a whole, and practical field application is difficult. The problem was sensor contamination due to sludge.

Accordingly, the applicant of the present invention simplifies the structure but makes it easy to check the accumulated amount of sludge in the sludge collection tank such as the thickening tank, and makes it possible to confirm in the operator's cab through the direct confirmation of the operator or the camera measurement. The sludge checking device has been proposed, and such an improved sludge collecting device has been required.

The present invention has been proposed in order to solve the above conventional problems, an aspect of the object is that the sludge collection tank for concentrating the sludge in the wastewater treatment plant, for example, by making it possible to easily check the accumulated amount of sludge in the concentration tank, the operation of the sludge collection tank To provide a sludge checking device of the sludge collection tank which can perform more efficiently, prevents overloading of equipment due to excessive sludge accumulation, prolongs the service life of the equipment, and improves the treatment efficiency of wastewater. Is in.

As a technical aspect for achieving the above object, the present invention, in the sludge collection tank of the waste water treatment facility, a plurality of sludge suction pipe provided to have a difference in length in the structure of the sludge collection tank; and the sludge suction pipe Is connected to the upper portion of the structure while being connected, the sludge checking means provided to check the individual flow of the sludge corresponding to each of the suction pipe; And sludge suction means connected to a lower portion of the sludge checking means and configured to allow sludge suction using an internal flow fluid.
The sludge suction pipes are provided to have different lengths at a predetermined ratio corresponding to the depth of the collection tank structure, and are extended to a height higher than the overflow holes provided in the collection tank structure and connected to the upper portion of the sludge checking means. It provides a sludge checking device of the sludge collection tank which is the treated water supplied to the collection tank.

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More preferably, the sludge suction pipe is vertically constructed along the inner wall of the structure, but at the lower end thereof, an expansion pipe part may be integrally provided to facilitate sludge suction.

In addition, the sludge checking means, the individual pipe connecting member for the sludge suction pipes are connected to the individual communication, and the individual pipe connecting member is assembled on the upper and disposed on the collection tank work deck and connected to the individual pipe connecting member to the inside Transparent sludge checking transparent tubes are formed therein to enable sludge checking to be flowed through, and the checking means body member is opened for checking sludge, and is assembled to the lower part of the body member and the transparent tubes are integrally connected. It may be configured to include a tubular communication member connected to the sludge suction means.

And, one of the openings formed on both sides of the body member of the sludge checking means is equipped with a cover plate attached to the transparent plate for replacing the transparent tube inside the body member, the other opening of the body member on the collection tank work deck A camera linked to the control panel arranged and the facility cab associated with it may be arranged.

In addition, the sludge suction means, the connection pipe connected to the tube communicating member included in the sludge check means is provided in the center, and includes an ejector to which the fluid supply and discharge pipes are connected to both sides.

Preferably, the fluid supply and discharge pipes on both sides of the ejector of the sludge suction means are connected to a control panel disposed on the collection tank work deck and operated in a controlled manner, and the inlet and outlet electric powers enable the cleaning of the device through sludge suction or back fluid supply. Control valves are provided.

More preferably, both sides of the transparent pipe for checking the sludge is further provided with a wire mesh inside the fluid supply and discharge pipe connected to both sides of the flow due to the sludge suction or the ejector connected to the pipe communication member in the transparent pipe At the time of cleaning the device through the installed on-off valve control, at least one color ball to facilitate the fluid flow is further provided.

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

However, reference numerals related to the sludge collection tank known below will be described by 100 units, and the sludge checking apparatus 1 of the sludge collection tank according to the present invention will be described by reference numerals of 10 units, and the sludge collection tank is weak and called 'concentration tank'. It will be described by reference numerals of units.

First, Figure 1 and Figure 2 shows the overall configuration, including the installation state of the thickening tank 100 installation state of the sludge checking device 1 according to the present invention in an installation state diagram and an exploded view.

That is, as shown in Figures 1 and 2, the sludge confirming device 1 of the thickening tank 100 according to the present invention, the structure 110 of the thickening tank 100 included in the wastewater treatment facility, for example, A plurality of sludge suction pipes (10) provided to have a length difference (L1, L2, L3 .... in FIG. 1) adjusted to correspond to the structure depth in the concrete structure, and the sludge suction pipes (10) are connected The sludge check means 30 and the sludge check means 30, which are arranged on the upper part of the structure 110 and configured to check the individual flow of the sludge corresponding to the respective suction pipes, are connected to the lower part of the sludge check means 30. It is characterized in that it comprises a sludge suction means 50 configured to enable sludge suction.

At this time, the thickening tank 100 of the present invention is basically a cylindrical concrete structure 110, the work deck 120 is provided across the upper and the lower portion of the rotating shaft 130 driven as a motor (M) therein. In conjunction with the scraper 140 to enable the discharge of the sludge (S) at the bottom of the structure as a pump (P) through the structure outlet 150 to treat sewage, waste water, in particular, chemical waste water generated in the steelmaking chemical conversion process Precipitate sludge generated during

Therefore, as shown in Fig. 1 and 2, the thickening tank sludge checking device 1 of the present invention, the total depth corresponding to the depth of the structure 110 of the thickening tank 100, for example, When the sludge is sucked from each suction pipe through a plurality of sludge suction pipes 10a, 10b, 10c .... that have different lengths in units of 10% of the total depth, a certain level (L1, l2, l3. ...) is characterized in that it is possible to immediately check whether the sludge S is accumulated.

At this time, only three suction pipes 10a, 10b, and 10c are shown in the drawing, but of course, more can be installed.

For example, as shown in Figure 1 and 2, the sludge suction pipe 10 is provided to have a difference in length corresponding to the depth of the thickening tank structure 110, the upper end of at least of the thickening tank 110 It extends higher than the upstream outlet 160 provided in the concrete structure 110, and is connected to the upper portion of the sludge checking means 30 to be described in detail below.

In addition, as shown in Figure 1, the sludge suction pipe 10 is concentrated along the inner wall (110a) of the thickener concrete structure is vertically installed, for example, the connection hardware fastened to the anchor bolt installed on the inner wall of the structure (not shown) The longest (ie deeply constructed) suction pipe 10a of the suction pipe so that its lower end is at least above the radius of rotation of the scraper 140 at the bottom of the structure so that it does not interfere. Of course it is desirable.

At this time, as shown in Figure 2, each of the suction pipe 10 is provided with an expansion pipe portion 10 'whose lower end portion is increased in diameter, it is also possible to facilitate while adjusting the sludge suction speed.

Next, the sludge checking means 30 associated with the sludge suction pipe 10 which enables the checking of the sludge accumulation amount substantially in the thickening tank sludge checking device 1 of the present invention, the sludge suction pipes 10 are in communication with each other It comprises a tubular individual connecting member 32 to be connected.

That is, as shown in Figure 2, the sludge suction pipes are connected to each of the pipe individual connection member 32 to be individually communicated.

At this time, the pipe individual connecting member 32 has a plurality of screw fastening holes (32a) formed in the plate member is fastened to the fastener 12 fixed to the end of the suction pipe (10).

Next, as shown in Figures 2 and 3, the sludge checking means 30 of the present invention, in particular, the pipe individual connecting member 32 is assembled on top and disposed on the work deck 120 of the structure And the sludge checking transparent pipes 34 connected to the pipe individual connecting members 32 and formed to be able to check the sludge S flowing through the inside are provided in the same channel corresponding to the inlet pipe and are transparent pipes. Confirmation means body member 36 having openings 36a on both sides for confirmation.

In addition, the sludge check means 30 of the present invention is assembled to the lower portion of the check means body member 36, but the sludge check transparent pipe is connected to communicate with the tube connected to the sludge suction means (50). And a member 38.

Therefore, when each of the sludge suction pipe 10 connected to the pipe individual connection member 32 is sucked through the sludge suction means 50 described in detail below, the pipe individual connection member 32 and the pipe communication member ( The sludge S flows between the transparent tubes 34 in the body member 36 of the sludge checking means, ie, the transparent tubes 34 embedded in the same number as the sludge suction tubes.

3 and 4, in the apparatus 1 of the present invention, the sludge suctioned from the sludge suction tube 10 arranged to have a depth difference at a constant ratio corresponding to the structure depth may cause the transparent tube 34 to be removed. In this case, depending on whether the sludge S is passing through which transparent tube of the checking means 30, the operator can easily grasp the sludge level in the concentration tank, that is, how much accumulated state is.

That is, the sludge checking apparatus 1 of the present invention makes it possible to easily grasp the accumulated amount of sludge in the thickener structure, whether the sludge is discharged through the operation of the scraper or whether the load will be applied when the current scraper is operated, or the sludge accumulates excessively Make it easy to identify the many important factors involved in the operation of the thickener.

At this time, as shown in Figure 2, the tube individual connecting member 32 and the tube communicating member 38 can be assembled and disassembled to the body member 36 of the checking means in the form of a flange (F).

In addition, the tube communicating member 38 is provided with screw fastening holes 38a to which the transparent tube 34 is connected.

At this time, as shown in Figure 2, the transparent tube 34 in the hole 32a of the upper tube individual connecting member 32 is assembled through the connector 46 and the connecting tube 44, of the transparent tube 34 The lower part is connected to the inside of the identification means body member 36 through the connector 46 and the connector 44 to the hole 38a of the tube communicating member 38 as well.

At the same time, as shown in Figures 2 and 4, the transparent plate 36b is attached to one of the openings 36a formed on both sides of the body member 36 of the sludge checking means 30 while replacing the transparent tube. The cover plate 36c for assembly is detachably mounted as a screw.

Thus, the cover plate 36c covers one side opening 36a of the body member, but is resolvable at any time, which facilitates replacement of the transparent tube 34.

In particular, preferably both sides of the sludge check transparent tube 34 is connected to the connector and the connection pipe via the wire mesh 40 may be inserted at least one color ball 42 inside the transparent tube. .

Thus, as shown in Figures 3 and 4, the wire mesh 40 passes through the sludge or the fluid for cleaning described later, that is, the wastewater introduced into the fresh water or the concentration tank, but blocks the passage of the color ball 42.

As a result, as shown in Figure 3, when the sludge is suction flow in the inside of the transparent tube 34, the color ball 42 flows, the operator can easily grasp the sludge flow, which will make it easier to check the sludge level .

On the other hand, as shown in Figure 4, the opening 36a formed on the other side of the body member 36 of the verification means 30, the control panel panel 70 for operating the thickening tank disposed on the thickening tank work deck 120 shown in FIG. ) And a camera 74 associated with the facility cab 72 connected thereto may be disposed.

Therefore, in the apparatus of the present invention, the operator can easily check the sludge accumulation state with the naked eye on the work deck, or can easily check the image sent from the camera in the cab through the display device (not shown).

Next, as shown in Figures 1 to 3, the sludge suction means 50, the connection pipe 52 connected to the pipe communication member 38 of the sludge checking means is provided in the center and supply fluid to both sides And an ejector 56 to which discharge pipes 54a and 54b are connected.

In addition, the sludge suction means 50 of the present invention is disposed on the collection tank working deck in the fluid pipes (54a, 54b) on both sides of the ejector 56 of the sludge suction water stage 50, the cab 72 It is connected to the control panel (70) associated with the entry and exit electrical control opening and closing valves 58 and 60 are provided.

Therefore, since each of the transparent pipes 34 of the sludge checking means 30 has the tube communicating member 38 through the inner space through the box body, the sludge introduced through the respective suction pipes in the transparent pipe is individually transparent pipe. While flowing through the pipe communication member 38 is collected and sucked all are discharged to the concentration tank through the ejector 56 and the discharge pipe (54b).

At this time, the ejector 56 is schematically illustrated in the drawings, but induces the fluid injection flow by the internal structure to generate the sludge suction force due to the fluid flow inside (e.g., fresh water, waste water, etc.) Sludge can be sucked in with a supply pressure of).

For example, as shown in FIG. 1, when the ejector inlet and outlet electrical control opening and closing valves 58 and 60 are opened through the control panel 70 on the work deck 120 in the cab 72, an example of a fluid supplied from the outside is shown. For example, when fresh water (wastewater to be treated) is discharged through the discharge pipe 54b while being strongly sprayed from the injection nozzle unit (not shown) in the ejector 56, the check means connected to the connecting pipe 32 of the ejector 56 Suction force is generated in the transparent tube 34 and the suction tube 10 in the body member, and the sludge is sucked through each suction tube according to the accumulation state of the sludge in the thickening tank.

At this time, the sludge sucked while the flow rate is decelerated in the expansion pipe portion 10 'of the suction pipe 10 as shown in Figure 3, while flowing the color ball 42 in the transparent pipe 34 of the expansion factor end, the sludge flow portion Is black (usually sludge is black), and the transparent tube 34 through which the sludge does not pass appears transparent because the treated water passes over the sludge layer, but only the color balls flow.

Accordingly, the camera 74 sends an image of the transparent tube through which such sludge passes and the transparent tube not through to the cab, so that the sludge level in the thickening tank can be easily checked.

Next, as shown in FIGS. 1 to 3, the electric control on / off valve 60 provided in the outlet fluid pipe 54b of the ejector 56 is sealed, and the inlet electric control on / off valve 58 is opened. When the fluid such as the treated water is supplied from the fluid, the fluid flows backward and the ejector 56-> the hole 38a of the tube communicating member 38-> the individual transparent tube 34-> the tube individual connecting member 32-> the individual Backwashing of sludge in the inhaled device is performed to check the accumulation of the inside of the device while being supplied through the path of the suction pipes 10a, 10b, 10c ....

At this time, since the color ball 42 inside the transparent tube 34 flows upward toward the tube individual connecting member 32 during such reverse cleaning, if there is no flow of the color ball, the related suction pipe 10 is blocked. It is easy to see.

Therefore, such a backwashing process can be easily grasped by the operator's naked eye or the camera 74.

As described above, according to the sludge checking apparatus of the sludge collection tank of the present invention, the sludge collection tank for collecting and condensing sludge in the sewage and wastewater treatment facilities, for example, the amount of sludge accumulated in the concentration tank can be easily and almost confirmed in real time. It is possible to perform the sludge collection tank more efficiently, such as when the sludge is discharged, sludge decay due to excessive accumulation or overloading of the sludge discharge scraper.

Therefore, the contamination caused by sludge treatment delay is prevented to increase the efficiency of wastewater and wastewater treatment, as well as to prevent overload of the driving equipment and the like, thereby extending the service life of the collection tank.

In addition, since the sludge accumulated in the apparatus can be backwashed and removed, it is possible to provide various excellent effects such as smooth operation of the sludge checking apparatus.

While the invention has been shown and described in connection with specific embodiments so far, it will be appreciated that the invention can be varied and modified without departing from the spirit or scope of the invention as set forth in the claims below. It will be appreciated that those skilled in the art can easily know.

Claims (8)

In the sludge collection tank 100 of the wastewater treatment facility, A plurality of sludge suction pipes (10) provided to have a length difference in the structure (110) of the sludge collection tank; and the sludge suction pipe (10) is connected to the upper portion of the structure (110), the respective suction pipes Corresponding sludge checking means (30) provided so as to confirm the individual flow of the sludge; And sludge suction means (50) connected to a lower portion of the sludge checking means (30) and configured to allow sludge suction using an internal flow fluid. The sludge suction pipe 10 is provided to have a different length difference at a predetermined ratio corresponding to the depth of the collection tank structure, it is extended higher than the overflow port 160 provided in the collection tank structure 110, the sludge checking means Is connected to the upper portion of the 30, the fluid is sludge checking apparatus of the sludge collection tank, characterized in that the treated water supplied to the collection tank. delete According to claim 1, wherein the sludge suction pipe 10 is installed vertically along the inner wall (110a) of the structure of the sludge collection tank, characterized in that the lower end is provided with an expansion pipe portion (10 ') to facilitate the sludge suction. Sludge checking device. According to claim 1, wherein the sludge checking means 30, Individual pipe connecting members 32 to which the sludge suction pipes 10 are connected to each other; The pipe individual connecting member 32 is assembled at the top and disposed on the collection tank work deck and connected to the pipe individual connecting member 32, the transparent sludge for identifying the sludge flowing through the inside to make the transparent pipe (34) are provided therein, the identification means body member 36 opened for sludge confirmation; And, A tube communicating member (38) assembled to a lower portion of the body member (36) and connected to the sludge suction means (50) by connecting the transparent tubes integrally with each other; Sludge check device of the sludge collection tank, characterized in that configured to include. The transparent plate 36b for replacing the transparent tube inside the body member is formed in one of the openings 36a formed on both sides of the body member 36 of the sludge checking means 30. The cover plate 36c is attached, and the other opening 36a of the body member has a camera 74 connected to the control panel 70 disposed on the collection tank work deck and the facility cab 72 connected thereto. Sludge check device of the sludge collection tank, characterized in that the arrangement. According to claim 1, The sludge suction means 50 is provided with a connecting pipe 52 connected to the pipe communication member 38 included in the sludge checking means in the center, the fluid supply and discharge pipe 54a on both sides Sludge collection device of the sludge collection tank, characterized in that it comprises an ejector (56) (54b) is connected. The fluid supply and discharge pipes (54a, 54b) on both sides of the ejector (56) of the sludge suction means (50) are connected to a control panel (70) disposed on a collection tank work deck and operated in a controlled manner. Sludge collection device of the sludge collection tank, characterized in that the entry and exit electrical control opening and closing valves (58) (60) to enable the cleaning of the device by suction or back fluid supply. According to claim 4, wherein both sides of the sludge check transparent tube 34 is further provided with a wire mesh 40, the inner side of the transparent tube flow due to the sludge suction, or the tube 52 to the tube communicating member 38 At least one color ball 42 is further provided to facilitate fluid flow during cleaning of the device by controlling the on / off valves installed in the fluid supply and discharge pipes 54a and 54b connected to both sides of the ejector 56. Sludge check device of the sludge collection tank, characterized in that provided.

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