KR101729388B1 - Settling pond and water level control method thereof - Google Patents

Settling pond and water level control method thereof Download PDF

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Publication number
KR101729388B1
KR101729388B1 KR1020150056922A KR20150056922A KR101729388B1 KR 101729388 B1 KR101729388 B1 KR 101729388B1 KR 1020150056922 A KR1020150056922 A KR 1020150056922A KR 20150056922 A KR20150056922 A KR 20150056922A KR 101729388 B1 KR101729388 B1 KR 101729388B1
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KR
South Korea
Prior art keywords
water
amount
coke
load
car
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KR1020150056922A
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Korean (ko)
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KR20160127185A (en
Inventor
노관호
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주식회사 포스코
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Priority to KR1020150056922A priority Critical patent/KR101729388B1/en
Publication of KR20160127185A publication Critical patent/KR20160127185A/en
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B39/00—Cooling or quenching coke
    • C10B39/04—Wet quenching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/30—Control equipment
    • B01D21/34—Controlling the feed distribution; Controlling the liquid level ; Control of process parameters
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B45/00—Other details

Abstract

The present invention relates to a sedimentation facility for separating minute coke contained in digested water discharged from a coke oven and a method for adjusting the level of a sedimentation facility. The sedimentation facility according to an embodiment of the present invention comprises a water- A sedimentation facility for separating the contained coke from the coke oven, wherein the sedimentation tank receives a mixture of water and minute coke from the coke oven and discharges the separated coke to separate water; A dishinging car which scrapes and collects the minute coke deposited on the bottom of the settling basin; A sensing unit for measuring a consumed current value of a traveling motor that operates the dishinging car and calculating a load amount proportional to a consumed current value of the traveling motor; A water level adjusting unit installed on a water discharge path of the sedimentation unit to adjust the amount of water to be discharged; And a control unit for controlling the operation of the water level adjusting unit so as to reduce the amount of water discharged as the load measured by the sensing unit is higher, wherein a no load state in which no load is applied to the dischoking car is set to 0% , And sets a maximum load state, which is a set maximum load of the dishinging car, at a load of 100%, and the control unit controls the amount of water discharged from the settling tank by adjusting the opening amount of the water level adjusting unit according to the following equation .
(expression)
Water level regulating opening amount (%) = 100 - Loading amount (%)

Description

{SETTLING POND AND WATER LEVEL CONTROL METHOD THEREOF}

The present invention relates to a sedimentation facility and a sedimentation facility level control method, and more particularly, to a sedimentation facility and a sedimentation facility level control method for separating minute coke contained in digested water discharged from a coke oven.

During the process of producing glow-in-coke in a coke oven, digested water (cooling water) is sprayed to cool it. At this time, the digested water cooled by the glowing coke contains a large amount of minute coke, so there is a limitation in recycling. If the digested water is recycled without the separation of the minute coke, the pump will be worn by the minute coke, the valve and the nozzle will be clogged, and the digestion water injection will become impossible. Therefore, the coke is precipitated from the settling basin and the clear water is recycled.

Figures 1 and 2 show a settling facility. As shown in the figure, in the coke oven 1, the digested water containing the minute coke C is supplied to the sedimentation bed 200 and the clear water that has passed through the filter box 210 passes through the purifying water tank 20, 30 to the coke oven 1 and recycled as digested water. The minute coke (C) settled on the bottom of the sedimentation bed (200) is scraped off by the dishinging car (100) or is discarded or recycled to another process.

The dishinging car 100 is configured to include a scraper 120 for scraping off the minute coke C from the bottom of the sedimentation bed 200 and a traveling motor 110 for traveling the dishinging car 100. The sedimentation bed 200 The resistance of the minute coke C is increased and the traveling motor 110 is burdened or the minute coke C is adhered to the scraper 120 and an excessive load is applied to the scraper 120 do. As a result, there is a problem that an unbalance phenomenon in which the height of the scraper 120 is varied is caused, or the operation itself is impossible due to breakage of the traveling motor 110.

In order to solve this problem, there is a demand for a method of increasing the level of the sedimentation basin so as to dilute the minute coke by detecting that the load of the minute coke is increased and the burden on the discharging car is increased.

A conventional sedimentation facility is known from "DISK CHARGING CAKE FOR COOK RESIDENTIAL AGENTS (Korea Registered Utility Model 1994-0032463) ". The present invention is characterized in that a distance bar capable of detecting the stacking height of minute coke is installed to operate a discharging car when a partial coke of a predetermined amount or more is loaded so that the discharging car is driven only in a required section, .

However, the above design does not disclose a structure for increasing the water level and alleviating the water level when a burden is imposed on the dischoking car by a large amount of minute coke.

Accordingly, there is a demand for a sedimentation facility and a water level control method which can relieve the burden imposed on the dispensing car by controlling the level of the sedimentation basin based on the real time of the resistance generated by the minute coke during operation of the dishinging car It is true.

Korean Registered Utility Model 1994-0032463

It is an object of the present invention to provide a sedimentation facility and a sedimentation facility level control method capable of controlling the level of water according to the amount of coke.

In order to accomplish the above object, according to an embodiment of the present invention, there is provided a sedimentation facility for separating minute coke contained in digestive water used in a coke oven, comprising a supply unit for supplying a mixture of water and minute coke from the coke oven A sedimentation tank for discharging the separated coke from the sedimentation tank, a dishinging car for scraping and recovering the minute coke deposited on the bottom of the sedimentation tank, and a consumed current value of the traveling motor for operating the dishinging car, A water level adjusting unit installed on the water discharge path of the settling water to adjust the amount of water to be discharged and a water level adjusting unit adjusting the amount of water discharged as the load measured by the sensing unit is higher And a control unit for controlling the operation of the water level adjusting unit so as to reduce the load on the discharging car, The load is set to 0% and the load applied to the dishinging car is a set maximum load at 100%, and the controller adjusts the opening amount of the water level adjusting unit according to the following equation, The amount of water to be treated is controlled.

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(expression)

Water level regulating opening amount (%) = 100 - Loading amount (%)

A filter box is installed at a place where water is discharged from the sedimentation tank, the water level control unit includes a gate installed on the front surface of the filter box to block the flow of water discharged from the sedimentation tank, And an actuator coupled to one end of the rotary shaft for rotating the rotary shaft, wherein the actuator is configured to vertically position the gate when the calculated amount of opening is 0%, to block the discharge of water, The gate is horizontally positioned so that the water is discharged to the maximum when the opened amount is 100%.

The method of adjusting the level of the sedimentation facility is a method of regulating the level of a sedimentation facility for separating minute coke contained in digestive water used in a coke oven, comprising the steps of operating a discharging car to scrape off the minute coke deposited on the bottom of the sedimentation basin A measuring step of measuring a consumed current value of a traveling motor that operates the dishinging car to calculate a load amount proportional to a consumed current value of the traveling motor and a load balancing step of calculating a load- , A maximum load condition which is a set maximum load of the dishinging car is set to a load of 100%, and a water level control for adjusting the amount of water discharged from the settling tank by adjusting the opening amount of the water level adjusting unit according to the following equation .
(expression)
Water level regulating opening amount (%) = 100 - Loading amount (%)

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delete

According to the settlement facility and the settlement facility level control method according to the present invention, the following effects can be obtained.

First, by increasing the level of the sedimentation basin in proportion to the amount of the minute coke, the load applied to the dischoking car can be reduced.

Second, the consumption current of the traveling motor can be calculated in real time, and the level of the sedimentation tank can be changed in real time based on the calculation.

Third, the water level of the sedimentation basin can be maintained even if the supply amount of the digested water is decreased.

Fourth, since it can be applied to a conventional sedimentation facility, the cost is low and the application is simple.

1 is a plan view of a sedimentation facility according to an embodiment of the present invention,
FIG. 2 is a side view of a sedimentation facility according to an embodiment of the present invention,
3 is a view showing the operation of the water level controller according to the amount of the minute coke,
4 is a perspective view showing the detailed configuration of the water level control unit.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms as used herein include plural forms as long as the phrases do not expressly express the opposite meaning thereto. Means that a particular feature, region, integer, step, operation, element and / or component is specified, and that other specific features, regions, integers, steps, operations, elements, components, and / And the like.

Unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Commonly used predefined terms are further interpreted as having a meaning consistent with the relevant technical literature and the present disclosure, and are not to be construed as ideal or very formal meanings unless defined otherwise.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

1 and 2, the settling facility 10 receives a mixture of water W and partial coke C from the coke oven 1 and supplies the separated coke C to the separated water W A dischoking car 100 for scraping and recovering the minute coke C settled on the bottom of the settling basin 200, A sensing unit 300 for measuring a load applied by the minute coke C, a water level adjusting unit 300 installed on the path from the settling tank 200 to the filter box 210 for adjusting the amount of water W discharged from the settling tank 200, And a controller 500 for controlling the operation of the water level controller 400 so as to reduce the amount of water discharged as the load measured at the unit 400 and the sensing unit 300 increases.

The minute coke C that sinks to the bottom of the settler 200 by using the specific gravity difference causes the disketting car 100 to be moved out of the settled settler 200. At this time, the weight of the scavenging coke C itself and the partial coke C attached to the dischoking car 100 are loaded on the operation of the disccarding car 100. The controller 500 measures the degree of the load as a load and controls the water level controller 400 to increase the level of the sedimentation tank 200 as the load is increased so that the minute coke C sludge can be made thinner. The thinned coke C can be scraped even with less force, so that the burden imposed on the dispensing car 100 is reduced. Details of how to measure the load and how to control the level controller according to the load will be described later.

The sensing unit 300 preferably measures the consumed current value of the traveling motor 110 that operates the dishinging car 100 and calculates the amount of load proportional to the consumed current value of the traveling motor 110. [

A rail is installed on the sedimentation bed 200, and the dishinging car 100 is installed on the rail and can move along the rail. A dismounting car (100) is provided with a traveling motor (110) to provide power for the dishinging car (100) to move on the rails. Further, a scraper 120 is installed on the bottom of the dischoking car 100 so that the bottom of the sedimentation can 200 can be scratched. This scraper 120 moves the minute coke C to the outside of the settling paper 200 while touching the bottom of the settling paper 200. At this time, when the amount of the deposited minute coke C is large or the level of the sedimentation tank 200 is low and the minute coke C is attached to the scrapers 120 in a large amount, Energy is consumed. This means that the consumed current value of the traveling motor 110 is increased. When a device capable of measuring the consumed current value of the traveling motor 110 in real time, for example, an ampere meter, It is possible to grasp the applied load in real time.

In setting the load, a no load state in which there is no load applied to the dishinger car 100 is set to 0%, and a maximum load state in which the load applied to the dischoking car 100 is set to a load amount 100% Preferably, the control unit 500 controls the amount of water discharged from the sedimentation basin by opening the water level regulating unit 400 by an amount inversely proportional to the load amount.

The opening amount of the water level adjusting part 400 is calculated by the following equation.

(expression)

Water level regulating opening amount (%) = 100 - Loading amount (%)

According to the above equation, the opening amount decreases as the load applied to dishinging car 100 increases, and the opening amount increases as the load applied to dishinging car 100 decreases. That is, the amount of water discharged from the settler 200 decreases as the load increases, and increases as the load decreases.

By controlling the opening amount to be in inverse proportion to the loading amount, it is possible to increase the level of the sedimentation tank 200 when the settlement amount of the minute coke C increases and the dishinging car becomes difficult to move, The sludge is diluted to make it easier to scrape the minute coke (C).

3 and 4, the water level adjusting unit 400 includes a gate 410 installed on the front surface of the filter box 210 to block the flow of water discharged from the settler 200, a gate 410 And an actuator 430 coupled to one end of the rotary shaft 420 and rotating the rotary shaft 420. The actuator 430 is configured to be opened and closed by the controller 500, It is preferable that the gate 410 is vertically positioned to shut off the discharge of water when the amount is 0% and the gate 410 is horizontally positioned when the amount of opening calculated by the controller 500 is 100% .

The water of the settling tank 200 may be discharged to the outside of the settling tank 200 through the water level adjusting unit 400 and the filter box 210 in order. The filter box 210 is for filtering fine foreign substances contained in water and the water level adjusting part 400 is for blocking water supplied to the filter box 210. Basically, it is desirable that the gate 410 is formed to be higher than the full water level of the sedimentation basin 200 and can completely block the flow of water when it is closed. When the gate 410 is vertically positioned to shut off the water to be discharged, the water level gradually increases due to the extinguishing water supplied from the coke oven 1. When the load is not 100%, that is, when the opening amount is not 0%, the actuator 430 rotates the gate 410 by a predetermined angle to discharge the water to the filter box 210. As the opening amount increases, the rotation angle also increases. When the opening amount is 100%, the rotation angle becomes maximum, and the gate 410 is horizontally positioned and water is discharged to the maximum.

The rotation axis 420 may be directly coupled to the gate 410, but more preferably, the arm 440 may be coupled to the rotation axis, and the arm 440 may be coupled to the gate to rotate the gate. When the rotation shaft 420 is directly coupled to the gate 410, excessive force may be required to rotate the gate 410 when the level of the sedimentation material 200 is high. Accordingly, when the rotary shaft 420 and the gate 410 are coupled through the arm 440, the gate 410 can be rotated with less force.

When the gate 410 and the rotary shaft 420 are indirectly coupled to each other, a kind of frame is installed around the gate 410, and a bracket is provided between the frame and the gate so that the gate 410 rotates It is desirable to install it in such a way that it can be used. By this frame, the discharge amount of water can be adjusted by rotating by the rotation shaft 420 and the arm 440 while preventing the gate 410 from deviating from the installation position.

Hereinafter, the water level control method using the above-described sedimentation facility will be described.

2, 3 and 5, a running step of operating the dishinging car 100 to scrape off the minute coke C deposited on the bottom of the settling basin 200, 100), and a water level adjusting step of adjusting the water level of the sedimentation basin 200 to be increased in proportion to the load amount.

The dishinger car 100 starts from one end of the sedimentation tank 200 close to the filter box 210 and linearly moves to the other end. At this time, the scrapper 120 installed at the lower end of the dishinging car 100 scrapes the minute coke C while contacting the bottom of the settling paper 200. The scumper 120 scatters the minute coke C onto the surface of the sedimentation bed 200 while moving along the inclined surface in contact with the floor and transports the sedimentation material to the outside of the sedimentation bed 200 do. After the minute coke C is transported to the outside of the settling paper 200, the dishinging car 100 returns to the end of the settling paper 200. At this time, the scraper 120 moves in a state in which the scraper 120 does not touch the bottom, (C) flows back to one end of the sedimentation bed (200).

The method of measuring the load and the method of controlling the water level in the measurement step and the water level control step have been described in the explanation of the settling facility and are omitted here.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand.

It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be interpreted as being included in the scope of the present invention .

1: Coke oven 10: Settling facility
20: purification tank 30: pump chamber
100: Discharging car 110: Traveling motor
120: Scraper 200: Settling basin
210: Filter box 300:
400: water level control unit 410: gate
420: rotating shaft 430:
440: arm 500: control unit
C: minute coke W: water

Claims (7)

As a sedimentation facility for separating fractional coke contained in digestive water used in coke ovens,
A settler which receives a mixture of water and minute coke from the coke oven and discharges the separated coke to separate water;
A dishinging car which scrapes and collects the minute coke deposited on the bottom of the settling basin;
A sensing unit for measuring a consumed current value of a traveling motor that operates the dishinging car and calculating a load amount proportional to a consumed current value of the traveling motor;
A water level adjusting unit installed on a water discharge path of the sedimentation unit to adjust the amount of water to be discharged; And
And a control unit for controlling the operation of the water level adjusting unit to reduce the amount of water discharged as the load measured by the sensing unit is higher,
Wherein the no load state in which the load applied to the dishinging car is not set is set to 0% and the maximum load state in which the load applied to the dishinging car is set to a load amount of 100%
Wherein the control unit adjusts the amount of water discharged from the sedimentation tank by adjusting the amount of opening of the water level adjusting unit according to the following equation.
(expression)
Water level regulating opening amount (%) = 100 - Loading amount (%)
delete delete The method according to claim 1,
A filter box is installed at a place where water is discharged from the settling basin,
The water level control unit includes a gate installed on a front surface of the filter box to block a flow of water discharged from the sedimentation tank, a rotating shaft coupled to an upper end of the gate, and an actuator coupled to one end of the rotating shaft to rotate the rotating shaft Including,
Wherein the gate is positioned vertically when the amount of opening calculated by the control unit is 0% to block the discharge of water, and when the amount of opening calculated by the control unit is 100%, the gate is horizontally positioned to maximally discharge water Wherein the sedimentation facility is a sedimentation facility.
CLAIMS 1. A method of controlling the level of a settling facility for separating fractional coke contained in digestive water used in a coke oven,
A running stage in which the discharging car is operated to scrape off the minute coke deposited on the bottom of the sedimentation basin;
Measuring a consumed current value of a traveling motor for operating the dishinging car and calculating a load amount proportional to the consumed current value of the traveling motor; And
The load capacity is set to 0% and the maximum load condition, which is the maximum value of the load applied to the dishinging car, is set to a load capacity of 100%, respectively, And adjusting the amount of water discharged from the sedimentation basin by adjusting the amount of water in the sedimentation basin.
(expression)
Water level regulating opening amount (%) = 100 - Loading amount (%) delete delete
KR1020150056922A 2015-04-23 2015-04-23 Settling pond and water level control method thereof KR101729388B1 (en)

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KR101729388B1 true KR101729388B1 (en) 2017-04-24

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100237593B1 (en) * 1997-07-15 2000-01-15 강준 Apparatus for removing sludge from settle tank

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100237593B1 (en) * 1997-07-15 2000-01-15 강준 Apparatus for removing sludge from settle tank

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