KR20020047765A - Device for cleaning the floting matter of coke waste water tank - Google Patents

Abstract

PURPOSE: A device for automatically separating floating matters of coke wastewater tank is provided to remove floating matters effectively using filtration plate. Furthermore, the filtration plate can be used with cylinder and adsorption hood and that makes it possible to reduce expenses of wastewater treatment. CONSTITUTION: The device comprises: a pair of supplementary tanks(10) which has an inlet pipe(11) and an opening/shutting valve(12) at the side thereof; a vertical cylinder(22) which operates a solenoid valve(21) in opening and shutting process; a filtration plate which has a wire net and a filter medium layer on the vertical cylinder; a pair of separation tanks(20) which has a water level sensor(26) and a limit switch(27) at the upper part of an inside wall in the housing; a touch bar which delivers reverse rotation signal to a motor when brought into contact with the limit switch and adsorbs the floating matters filtered by the filtration plate; a bearing which is installed on the vertical cylinder and fixes the touch bar; an adsorption hood(30) which has a touch bar; a controller which delivers rotation signal to motor and operation signal to valves by receiving electric signal from the water level sensor.

Description

Automatic device for removing suspended solids from coke wastewater {Device for cleaning the floting matter of coke waste water tank}

The present invention is a removal device for removing suspended solids in the pretreatment of waste water generated in the coke plant, in particular to automate the work process according to the removal of suspended substances to reduce the labor and of course to increase the removal efficiency The present invention relates to a device for automatically removing suspended solids from waste coke.

In general, the purification technology of coke wastewater is a pretreatment operation, after removing suspended solids contained in the wastewater, decomposing organic matter using microorganisms in a biochemical treatment process, and then purifying harmful substances by adding chemicals in a chemical treatment process. After that, it is filtered through several steps.

In particular, the pre-treatment of the coke waste water, as shown in Figure 1, the suspended solids 110 contained in the coke waste water 100 to pass through the porous filter medium 120, the suspended solids 110 filter medium Adsorbed to 120 and then removed, and then transferred to the biochemical treatment (P).

However, the method of removing the suspended solids 110 using the filter medium 120 increases the mass of the suspended solids adsorbed into the filter medium as time passes, and as a result, the water permeability of the filtered medium is gradually lowered. When the particles having large particles are adsorbed by the filter medium, the pores of the filter medium are closed, thereby making it impossible to operate.

Therefore, since the work process for replacing the filter medium 120 is frequently performed, the workmanship according to the replacement work is increased, and as a result, the additional cost is increased, and the process of removing the filter medium containing heavy metal is incinerated. There was a problem that pollutes the surrounding environment.

Meanwhile, as shown in FIG. 2, the pretreatment of the coke wastewater is scraped off the floating material 110 floating on the surface of the wastewater using a scraper 130 and then pushed to the container 140 to remove the floating material. A method of transferring the removed wastewater to the biochemical treatment process (P) has been proposed.

By the way, the method for removing the suspended solids 110 using the scraper 130, because the material similar to the specific gravity of the waste water contained in the waste water flows to the biochemical treatment process as it is not suspended, There was a problem that the work efficiency is reduced according to the treatment of suspended matter.

Therefore, the present invention has been made in order to solve the problems described above, by reducing the work maneuver by automating the operation process according to the removal of the suspended substances contained in the waste water generated in the coke plant, as well as the An object of the present invention is to provide an automatic removal device of suspended solids in coke wastewater, which can increase the removal efficiency.

1 is an embodiment of a suspended solids removing apparatus of coke wastewater according to the prior art,

Figure 2 is another embodiment of the suspended solids removing apparatus of coke wastewater according to the prior art,

3 is a perspective view of an automatic removal device for suspended solids in coke wastewater according to the present invention;

Figure 4 (a), (b) is a plan view and a cross-sectional view showing an apparatus for automatically removing suspended solids of coke wastewater according to the present invention.

Explanation of symbols on the main parts of the drawings

10,10 ': auxiliary tank 11,11': inlet

12,12 ': On / off valve 20,20': Separation tank

21, 21 ': solenoid valve 22,22; : Vertical cylinder

25,25 ': Filter plate 26,26': Water level sensor

30,30 ': Adsorption hood 32,32': Motor

33,33 ': Rail 34,34': Touch bar

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

Figure 3 is a perspective view of the automatic removal of suspended solids of coke wastewater according to the present invention, Figure 4 (a), (b) is a plan view and a cross-sectional view showing the automatic removal of suspended solids of coke wastewater according to the present invention,

In the process of removing suspended solids contained in the waste water generated from the coke plant and supplying them to the biochemical treatment process, in the process of constructing an automatic removal device of suspended solids for automating the removal of suspended solids, the coke waste water in the center of the body A pair of auxiliary tanks 10 and 10 'equipped with opening / closing valves 12 and 12' operated by an electrical signal in the inflow passages 11 and 11 'forming the body side; In the center of the body, the receiving space for receiving the waste water from the auxiliary tanks 10 and 10 'is formed, as well as the vertical cylinders 22 and 22' which are operated in the opening and closing process of the solenoid valves 21 and 21 'on the bottom surface. On the rods of the cylinders 22 and 22 ', filter plates 25 and 25' in which wire meshes 23 and 23 'and filter media 24 and 24' are stacked are mounted, and the water level is sensed on the upper and inner walls of the housing. A pair of separation tanks 20, 20 'equipped with sensors 26, 26' and limit switches 27, 27 '; It is mounted on the rods of the cylinders 22 and 22 'through the bearings 31 and 31' as well as rotating along the rails 33 and 33 'during the operation of the motors 32 and 32'. 25 '), a pair of adsorption hoods (30, 30') equipped with touch bars (34, 34 ') for absorbing suspended substances filtered and outputting a reverse signal to the motor when the body is in contact with a limit switch. ) And; It receives the electrical signals from the water level sensor 27, 27 'and outputs the operation signals to the on / off valves 11 and 11' and the solooid valves 21 and 21 'as well as to the motors 32 and 32'. Characterized in that the control device for outputting the forward and reverse rotation signal.

First, an inflow line (not shown) into which wastewater generated in a coke plant among components according to the present invention is introduced, and a biochemical treatment process (P) in which wastewater from which suspended matter is removed are transferred is the same as in the prior art. Is omitted, except that there is a change in the removal process of suspended solids contained in the waste water.

And, the auxiliary tank (10, 10 ') is a housing for accommodating the coke waste water supplied from the coke factory, in the state supported by the legs (13, 13') on the bottom surface of the waste water on the body side In addition to being used as an inflow passage, the inflow passages 11 and 11 ', which are communicated with each other through the connection pipe 17, are mounted, and an on / off valve 12 operated by an electrical signal on the flow passage of the inflow passages 11 and 11'. , 12 ').

The separation tanks 20 and 20 'are wastewater containers connected to the auxiliary tanks 10 and 10' via connecting pipes 29a and 29a ', and the legs 28 and 28' are disposed on the bottom surface. Vertical cylinders 22 and 22 'are mounted on the bottom surface of the body in the state supported by the solenoid valves 21 and 21' to open and close the flow paths.

In addition, the separation tanks 20 and 20 'are equipped with water level sensors 26 and 26' for detecting the level of the wastewater on the inner wall, and the touch bars 34 and 34 'will be described later on the upper surface. It is equipped with limit switches 27 and 27 'which are activated when they come into contact with each other.

In addition, the filter plates 25, 25 'are mounted on the rods of the vertical cylinders 22, 22' mounted on the bottom surfaces of the separation tanks 20, 20 ', and the filter plates 25, 25' have a particle size. Wire meshes 23 and 23 'filtering large suspended substances and filter media 24 and 24' filtering small suspended particles are sequentially stacked.

In addition, the adsorption hood (30, 30 ') is a device for sucking the suspended substances filtered along the filter plates (25, 25') of the separation tank (20, 20 ') and supply them to the post-treatment process, the cylinder (22) , 22 '), that is, support plates 35 and 35' are rotatably mounted on bearings 31 and 31 'on the upper side of filter plates 25 and 25'.

Of course, the support plates 35 and 35 'are members that rotate along the rails 33 and 33' during the operation of the motors 32 and 32 'mounted on the upper flange portions of the separation tanks 20 and 20'. The adsorption rubber plates 37 and 37 ', which suck up suspended substances on the upper sides of the support plates 35 and 35' and discharge them to the discharge pipes 36 and 36 ', are in contact with the limit switches 27 and 27'. In this case, the touch bars 34 and 34 'which output an operation signal are mounted.

The control device receives an electrical signal from the water level sensor 27, 27 'and outputs an operation signal to the on / off valves 11, 11' to open and close the inflow passages 11, 11 'and the solenoid valve. Output the operation signal to (21, 21 ') to raise and lower the vertical cylinder (22, 22') as well as output the forward rotation signal to the motor (32, 32), touch bar (34, 34 ') When contacted with the limit switch (27, 27 ') outputs a reverse rotation signal to the motor (32, 32').

Hereinafter, described in detail with reference to the accompanying drawings illustrating the operation according to the present invention.

First, the coke wastewater supplied from the coke plant is supplied to the separation tank 20 through the auxiliary tank 10 along the inflow path 11, and then passed through the wire mesh 23 of the filter plate 25, the material having a large particle size (100 μm or more) is filtered and the material having a small particle size (100 μm or less) is filtered through the filter medium 24, and is supplied to the biochemical treatment process P.

If a large amount of suspended matter accumulates on the filter plate 25 and the water level rises and the water level reaches the water level sensor 26, the control device outputs a shutoff signal to the on-off valve 11 and opens / closes the valve 11 '. Of course, the open signal is output to the solenoid valve 21 and the motor 32 to output the operation signal.

As a result, the coke wastewater supplied from the coke plant is not supplied to the auxiliary tank 10 through the inflow passage 11, but is separated into the auxiliary tank 10 'along the inflow passage 11'. Since it is supplied to (20 '), it is to perform the filtration of suspended matter as in the above operation process.

When the solenoid valve 21 receiving the signal of the control device is operated "on" and the flow path of the fluid is opened, the rod of the vertical cylinder 22 is upward, so that the bearing ( 31, the support plate 35 of the adsorption hood 30 which is rotatably mounted is rotated in one direction.

That is, the support plate 35 of the adsorption hood 30 is rotated along the rail 33 during the operation of the motor 32 receiving the signal of the control device, thereby gradually removing the suspended matter trapped in the filter plate 25. Will be done. Of course, the suspended solids removed by the support plate 35 is transferred to the post-treatment process through the discharge pipes 36 and 36 'while being sucked by the suction force of the adsorption rubber plate 37.

On the other hand, in the process of raising the support plate 35 by the vertical cylinder 22, for example, the touch bar 34 provided in the adsorption hood 30 to the limit switch 27 provided in the separation tank 20. In the case of contact, the control device outputs a reverse rotation signal to the motor 32, so that the support plate 35 reverses.

Of course, the control device outputs an off signal to the solenoid valve 21 to seal the fluid flow path, so that the rod of the vertical cylinder 22 is lowered, and the filter plate 25 is returned to its original state to be set in the working standby state. .

As described above, according to the apparatus for automatically removing suspended solids of coke wastewater, the suspended solids contained in the coke wastewater are automatically removed using a filter plate (wire mesh + filter material), and the filter plate is regenerated by a cylinder and an adsorption hood. By reusing, the purification ability of suspended solids contained in the coke wastewater is improved, not only reducing the environmental pollution source, but also extending the life of the filter plate, thereby reducing the various additional costs required in the wastewater treatment process.

Claims (1)

In the process of removing the suspended substances contained in the waste water generated from the coke plant and supplying them to the biochemical treatment process, in the configuration of an automatic removal apparatus of suspended substances for automating the removal of suspended substances, A pair of auxiliary tanks (10, 12 ') equipped with an opening / closing valve (12, 12') operated by an electrical signal in an inflow passage (11, 11 ') forming a body side as well as a receiving space for coke waste water is formed in the center of the body , 10 '); In the center of the body is formed a receiving space for receiving waste water from the auxiliary tank (10, 10 '), as well as the vertical cylinder (22, 22') that is operated in the opening and closing process of the solenoid valve (21, 21 ') on the bottom surface On the rods of the cylinders 22 and 22 ', filter plates 25 and 25' in which wire meshes 23 and 23 'and filter media 24 and 24' are stacked are mounted, and the water level is sensed on the upper and inner walls of the housing. A pair of separation tanks 20, 20 'equipped with sensors 26, 26' and limit switches 27, 27 '; It is mounted on the rods of the cylinders 22 and 22 'through the bearings 31 and 31' as well as rotating along the rails 33 and 33 'during the operation of the motors 32 and 32'. 25 ') and a pair of adsorption hoods (30, 30') equipped with touch bars (34, 34 ') for absorbing the suspended substances filtered as well as outputting a reverse rotation signal to the motor when the body contacts the limit switch. ) And; It receives the electrical signals from the water level sensor 27, 27 'and outputs the operation signals to the on / off valves 11 and 11' and the solooid valves 21 and 21 'as well as to the motors 32 and 32'. Automatic removal of suspended solids in the coke wastewater, characterized in that consisting of a control device for outputting a reverse rotation signal.