CN106281388A - A kind of coal damping lime set pressure tank device and control method thereof - Google Patents
A kind of coal damping lime set pressure tank device and control method thereof Download PDFInfo
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- CN106281388A CN106281388A CN201510289797.6A CN201510289797A CN106281388A CN 106281388 A CN106281388 A CN 106281388A CN 201510289797 A CN201510289797 A CN 201510289797A CN 106281388 A CN106281388 A CN 106281388A
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Abstract
A kind of coal damping lime set pressure tank device and control method thereof, this device includes drying machine, main steam range, lime set tank, described drying machine passes through connection by metal hose to lime set tank, described main steam range is connected with drying machine and lime set tank respectively by balance pipe, setting up the force value of lime set tank and balance pipe by interlock control system and lead to steam flow that the branch road of lime set tank carried interlocked control between the two, described interlock system includes signal detection end, identifies and realizes interlock motion end and action executing end.Described control method is: signal detection end detection coal conditioning drying machines duty, by current operating state send into identify and realize interlock motion end, identify and realize interlock motion end issue action command to action executing end according to current operating state.A kind of coal damping lime set pressure tank device of the present invention and control method thereof, be effectively ensured the smooth and easy discharge of lime set, it is to avoid water attack, steam hammer phenomenon, improve coal damping heat-exchange system effect, it is ensured that equipment safety.
Description
Technical field
The invention belongs to coal humidifying technology field, be specifically related to a kind of coal damping lime set pressure tank device and control method thereof.
Background technology
Coal damping be a kind of by coke oven mixed coal moisture content before shove charge, using steam as thermal source, flue gases of cock oven is as carrier gas
The technique that mixed coal is adjusted to certain moisture content；After steam and wet mixed coal heat exchange, condensation generates lime set, through condensate pipe
Derive, collect in lime set tank store after flow into later process.Under normal circumstances, coal damping drying machine steam condensate (SC)
Entering lime set tank, main steam enters in lime set tank lime set through balance pipe simultaneously, make inlet steam, drying machine metal hose,
Lime set tank three just becomes the entirety of a connection, it is ensured that lime set fully relies on deadweight and discharges.But balance pipe is by high pressure
Main steam is passed through in lime set, and water attack, vibration and noise phenomenon will directly occur, and continues and will affect the equipment such as lime set tank
Service life.
Another kind of situation is, when running into coal damping startup-shutdown or to carry out moisture content of coal abnormal, lime set generation amount is few, and along with flat
The quantity of steam that weighing apparatus pipe is passed through in lime set strengthens, and ceaselessly heating lime set promotes it to evaporate, and causes lime set pressure tank to rise with main
Pipe steam pressure is close, not only balance pipe does not has the effect ensureing that condensed water is discharged smoothly, and moment can affect condensation on the contrary
The discharge of water；So also result in moment steam and condensed water occurring at metal hose certain position internal of backwater a large amount of
, there is steam hammer phenomenon, and then pipe explosion accident occurs in heat exchange.
Summary of the invention
For solving problem above, it is ensured that lime set is got rid of smoothly and is prevented effectively from system water attack, vibration, noise and gas hammer phenomenon
Generation, the invention provides a kind of coal damping lime set pressure tank device and control method thereof, first, improve from device,
Original design balance pipe entrance is adjusted supreme from lime set tank lime set plane, it is to avoid balance pipe high termination steam pipe, low termination
Bring high pressure steam directly to enter lime set system by short circuit at low lime set position, produce water attack；Furthermore set up flow-stopping plate,
Make balance pipe enter lime set tank steam and run into flow-stopping plate, owing to sectional area increases, the flowing velocity of steam is declined, meanwhile,
Condensation water contained in steam is separated, and effectively prevent water hammer and occurs, secondly, by lime set pressure tank and
Main steam range is delivered to both quantity of steams of lime set tank and sets up interlocked control relation, reduces lime set tank by interlocked control and accumulates
The steam hammer phenomenon that high pressure occurs, it is to avoid and then the pipe explosion accident generation caused, its technical scheme is specific as follows:
A kind of coal damping lime set pressure tank device, includes drying machine (1), main steam range (2), lime set tank (3), institute
The drying machine stated is connected to lime set tank by metal hose (4), described main steam range by balance pipe (5) respectively with
Drying machine and lime set tank connect, it is characterised in that:
Steam flow that the branch road of lime set tank carried is led to as controlled quentity controlled variable respectively with the force value of lime set tank and balance pipe, logical
Cross interlock control system and set up interlocked control between the two,
Described interlock system includes signal detection end, identifies and realizes interlock motion end and action executing end,
Described action executing end is arranged at described balance pipe and leads on the branch road of lime set tank.
A kind of coal damping lime set pressure tank device according to the present invention, it is characterised in that:
Described balance pipe leads to the branch road end of lime set tank and is arranged at more than the liquid level plane of lime set tank.
A kind of coal damping lime set pressure tank device according to the present invention, it is characterised in that:
The branch road end leading to lime set tank at described balance pipe arranges a flow-stopping plate (6).
A kind of coal damping lime set pressure tank device according to the present invention, it is characterised in that:
Described signal detection end is a pressure transducer.
A kind of coal damping lime set pressure tank device according to the present invention, it is characterised in that:
Described action executing end is a ratio adjusting valve or electric control valve.
A kind of coal damping lime set pressure tank device according to the present invention, it is characterised in that:
Described identification and realize interlock motion end be relay or Programmable Logic Controller.
A kind of coal damping lime set pressure tank control method, is applied in coal humidifying technology after steam and wet mixed coal heat exchange,
Condensation generates lime set operation, it is characterised in that:
Described control method force value and balance pipe with lime set tank respectively leads to the steam that the branch road of lime set tank is carried
Flow is controlled quentity controlled variable, sets up interlocked control between the two by interlock control system and realizes,
Described interlock system includes signal detection end, identifies and realizes interlock motion end and action executing end,
Described action executing end is arranged at described balance pipe and leads on the branch road of lime set tank,
Described control method is particularly as follows: the duty of signal detection end detection coal conditioning drying machines, and by work at present
State is sent into and is identified and realize motion end of interlocking, and is issued accordingly according to current operating state by identifying and realizing interlocking motion end
Action command to action executing end.
A kind of coal damping lime set pressure tank control method according to the present invention, it is characterised in that: described current operating state
Include stopped status, pre-Warm status, normal operating condition and the exception of starting shooting or lime set pressure tank to transfinite state,
When the duty identifying and realizing that interlocking motion end accepts is stopped status, does not issue action command and refer to action
Make end；
When identifying and realize that the duty that interlocking motion end accepts is to start shooting pre-Warm status, issuing aperture is 10%-
The instruction of 20% is to action executing end；
When the duty identifying and realizing that interlocking motion end accepts is up state, issuing aperture is 20%-
The instruction of 50% is to action executing end；
When the duty identified and the motion end that realizes interlocking accepts be exception or lime set pressure tank transfinite state time, issue pass
Severed finger makes action executing end, issues the action executing end turning off instruction to balance pipe main line simultaneously.
A kind of coal damping lime set pressure tank control method according to the present invention, it is characterised in that:
When identifying and realize that the duty that interlocking motion end accepts is pre-Warm status of starting shooting, and the current lime set tank pressure accepted
When force value is 1kgf, issue instruction that aperture is 10% to action executing end；
When identifying and realize that the duty that interlocking motion end accepts is start shooting pre-Warm status or normal operating condition, and accept
Current lime set tank pressure force value when being 1.5-2kgf, issue instruction that aperture is 20% to action executing end；
When identifying and realize that the duty that interlocking motion end accepts is up state, and the current lime set tank pressure accepted
When force value is 4-6kgf, issue instruction that aperture is 40% to action executing end；
When identifying and realize that the duty that interlocking motion end accepts is up state, and the current lime set tank pressure accepted
When force value is 8-9kgf, issue instruction that aperture is 50% to action executing end.
A kind of coal damping lime set pressure tank control method the most according to claim 8, it is characterised in that:
Described " when the duty identified and the motion end that realizes interlocking accepts be exception or lime set pressure tank transfinite state time "
In the lime set pressure tank state that transfinites be specially more than 9kgf.
A kind of coal damping lime set pressure tank device of the present invention and control method thereof, first, improve from device, set former
Meter balance pipe entrance adjusts supreme from lime set tank lime set plane, it is to avoid balance pipe high termination steam pipe, the low lime set of low termination
Bring high pressure steam directly to enter lime set system by short circuit at Wei, produce water attack；Furthermore set up flow-stopping plate, make balance
Pipe enters lime set tank steam and runs into flow-stopping plate, owing to sectional area increases, the flowing velocity of steam is declined, meanwhile, and institute in steam
The condensation water contained is separated, and effectively prevent water hammer and occurs, secondly, by lime set pressure tank and main steam range
Both the quantity of steams being delivered to lime set tank set up interlocked control relation, reduce lime set tank accumulation high pressure by interlocked control and occur
Steam hammer phenomenon, it is to avoid and then the pipe explosion accident caused occurs, thus while system lime set smooth and easy discharge is effectively ensured,
Improve the heat transfer effect of coal humidity controlling system, it is ensured that the security performance of equipment.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
In figure, 1 is drying machine；2 is main steam range；3 is lime set tank；4 is metal hose；5 is balance pipe；6 is baffle
Plate.
Detailed description of the invention
Below, according to specification drawings and specific embodiments to a kind of coal damping lime set pressure tank device of the present invention and
Control method is further described in detail.
A kind of coal damping lime set pressure tank device as shown in Figure 1, includes drying machine (1), main steam range (2), coagulates
Flow container (3), described drying machine is connected to lime set tank by metal hose (4), and balance pipe is passed through in described main steam range
(5) it is connected with drying machine and lime set tank respectively, leads to the branch road institute of lime set tank respectively with the force value of lime set tank and balance pipe
The steam flow of conveying is controlled quentity controlled variable, sets up interlocked control between the two, described interlocking system by interlock control system
System includes signal detection end, identifies and realize interlock motion end and action executing end, and described action executing end is arranged
On the branch road that described balance pipe leads to lime set tank.
Described balance pipe leads to the branch road end of lime set tank and is arranged at more than the liquid level plane of lime set tank.
The branch road end leading to lime set tank at described balance pipe arranges a flow-stopping plate (6).
Described signal detection end is a pressure transducer.
Described action executing end is a ratio adjusting valve or electric control valve.
Described identification and realize interlock motion end be relay or Programmable Logic Controller.
A kind of coal damping lime set pressure tank control method, is applied in coal humidifying technology after steam and wet mixed coal heat exchange,
Condensation generates lime set operation, and force value and balance pipe with lime set tank lead to the steam stream that the branch road of lime set tank is carried respectively
Amount is controlled quentity controlled variable, sets up interlocked control between the two by interlock control system and realizes,
Described interlock system includes signal detection end, identifies and realizes interlock motion end and action executing end,
Described action executing end is arranged at described balance pipe and leads on the branch road of lime set tank,
Described control method is particularly as follows: the duty of signal detection end detection coal conditioning drying machines, and by work at present
State is sent into and is identified and realize motion end of interlocking, and is issued accordingly according to current operating state by identifying and realizing interlocking motion end
Action command to action executing end.
Wherein, described current operating state includes stopped status, start shooting pre-Warm status, normal operating condition and exception
Or lime set pressure tank transfinites state,
When the duty identifying and realizing that interlocking motion end accepts is stopped status, does not issue action command and refer to action
Make end；
When identifying and realize that the duty that interlocking motion end accepts is to start shooting pre-Warm status, issuing aperture is 10%-
The instruction of 20% is to action executing end；
When the duty identifying and realizing that interlocking motion end accepts is up state, issuing aperture is 20%-
The instruction of 50% is to action executing end；
When the duty identified and the motion end that realizes interlocking accepts be exception or lime set pressure tank transfinite state time, issue pass
Severed finger makes action executing end, issues the action executing end turning off instruction to balance pipe main line simultaneously.
Further,
When identifying and realize that the duty that interlocking motion end accepts is pre-Warm status of starting shooting, and the current lime set tank pressure accepted
When force value is 1kgf, issue instruction that aperture is 10% to action executing end；
When identifying and realize that the duty that interlocking motion end accepts is start shooting pre-Warm status or normal operating condition, and accept
Current lime set tank pressure force value when being 1.5-2kgf, issue instruction that aperture is 20% to action executing end；
When identifying and realize that the duty that interlocking motion end accepts is up state, and the current lime set tank pressure accepted
When force value is 4-6kgf, issue instruction that aperture is 40% to action executing end；
When identifying and realize that the duty that interlocking motion end accepts is up state, and the current lime set tank pressure accepted
When force value is 8-9kgf, issue instruction that aperture is 50% to action executing end.
Wherein, described " when the duty identified and the motion end that realizes interlocking accepts is exception or lime set pressure tank transfinites shape
During state " in the lime set pressure tank state that transfinites be specially more than 9kgf.
Regulation is according to as follows:
After balance pipe position adjustment and regulation valve are installed, using the pressure of lime set tank as a Con trolling index, it is stipulated that with 9kgf
For the upper limit, it is ensured that set up the security performance of system after regulation valve；At coal conditioning drying machines start warm-up phase, regulation valve is protected
Hold 10-20% aperture, it is ensured that lime set pressure tank is stable, stops the phenomenon such as water attack, pneumatic hammer；When coal damping normally produces, adjust
Joint valve keeps 20-50% aperture, thus reduces low-pressure steam consumption. according to carrying out coal moisture content situation in operation, regulate steam stream
Amount, sets up according to following table simultaneously and controls interlock program accordingly, is automatically adjusted realizing lime set pressure tank.Concrete working condition
As follows:
Working condition 1: when coal conditioning drying machines state is shut down, drying machine body main steam stops being passed through, lime set pressure tank
For 0kgf, balance pipe control valve opening is 0%；
Working condition 2: during the coal conditioning drying machines pre-Warm status of start, drying machine body main steam is progressively passed through, lime set tank
Pressure is stepped up by 0kgf, is typically in 1-2kgf, and balance pipe regulation valve is progressively adjusted by 0% with lime set pressure tank interlocking
Whole, general open range is 10%-20%；
Working condition 3: when coal conditioning drying machines is properly functioning, drying machine body main steam is normally passed through, lime set pressure tank
Stepping up, be typically in 1.5-9kgf, balance pipe regulation valve progressively adjusts with lime set pressure tank interlocking, general aperture model
Enclose for 20%-50%；
Working condition 4: coal damping abnormal conditions or lime set pressure tank ＞ 9kgf, balance pipe regulation valve joins with lime set pressure tank
Lock cuts out regulation valve, and drying machine body main steam is also cut off simultaneously.
A kind of coal damping lime set pressure tank device of the present invention and control method thereof, first, improve from device, set former
Meter balance pipe entrance adjusts supreme from lime set tank lime set plane, it is to avoid balance pipe high termination steam pipe, the low lime set of low termination
Bring high pressure steam directly to enter lime set system by short circuit at Wei, produce water attack；Furthermore set up flow-stopping plate, make balance
Pipe enters lime set tank steam and runs into flow-stopping plate, owing to sectional area increases, the flowing velocity of steam is declined, meanwhile, and institute in steam
The condensation water contained is separated, and effectively prevent water hammer and occurs, secondly, by lime set pressure tank and main steam range
Both the quantity of steams being delivered to lime set tank set up interlocked control relation, reduce lime set tank accumulation high pressure by interlocked control and occur
Steam hammer phenomenon, it is to avoid and then the pipe explosion accident caused occurs, thus while system lime set smooth and easy discharge is effectively ensured,
Improve the heat transfer effect of coal humidity controlling system, it is ensured that the security performance of equipment.
Claims (10)
1. a coal damping lime set pressure tank device, includes drying machine (1), main steam range (2), lime set tank (3), institute
The drying machine stated is connected to lime set tank by metal hose (4), and described main steam range passes through balance pipe (5) respectively with dry
Dry machine and lime set tank connect, it is characterised in that:
Lead to steam flow that the branch road of lime set tank carried as controlled quentity controlled variable with the force value of lime set tank and balance pipe respectively, pass through
Interlock control system sets up interlocked control between the two,
Described interlock system includes signal detection end, identifies and realizes interlock motion end and action executing end,
Described action executing end is arranged at described balance pipe and leads on the branch road of lime set tank.
A kind of coal damping lime set pressure tank device the most according to claim 1, it is characterised in that:
Described balance pipe leads to the branch road end of lime set tank and is arranged at more than the liquid level plane of lime set tank.
A kind of coal damping lime set pressure tank device the most according to claim 1, it is characterised in that:
The branch road end leading to lime set tank at described balance pipe arranges a flow-stopping plate (6).
A kind of coal damping lime set pressure tank device the most according to claim 1, it is characterised in that:
Described signal detection end is a pressure transducer.
A kind of coal damping lime set pressure tank device the most according to claim 1, it is characterised in that:
Described action executing end is a ratio adjusting valve or electric control valve.
A kind of coal damping lime set pressure tank device the most according to claim 1, it is characterised in that:
Described identification and realize interlock motion end be relay or Programmable Logic Controller.
7. a coal damping lime set pressure tank control method, is applied in coal humidifying technology after steam and wet mixed coal heat exchange,
Condensation generates lime set operation, it is characterised in that:
Described control method force value and balance pipe with lime set tank respectively leads to the steam stream that the branch road of lime set tank is carried
Amount is controlled quentity controlled variable, sets up interlocked control between the two by interlock control system and realizes,
Described interlock system includes signal detection end, identifies and realizes interlock motion end and action executing end,
Described action executing end is arranged at described balance pipe and leads on the branch road of lime set tank,
Described control method is particularly as follows: the duty of signal detection end detection coal conditioning drying machines, and by work at present shape
State is sent into and is identified and realize motion end of interlocking, and is issued corresponding dynamic according to current operating state by identifying and realizing interlocking motion end
Instruct to action executing end.
A kind of coal damping lime set pressure tank control method the most according to claim 7, it is characterised in that: described is current
Duty includes stopped status, pre-Warm status, normal operating condition and the exception of starting shooting or lime set pressure tank to transfinite state,
When the duty identifying and realizing that interlocking motion end accepts is stopped status, does not issue action command and refer to action
Make end；
When the duty identified and the motion end that realizes interlocking accepts is to start shooting pre-Warm status, issuing aperture is 10% one 20%
Instruction to action executing end；
When the duty identified and the motion end that realizes interlocking accepts is up state, issuing aperture is 20% one 50%
Instruction to action executing end；
When the duty identified and the motion end that realizes interlocking accepts be exception or lime set pressure tank transfinite state time, issue pass
Severed finger makes action executing end, issues the action executing end turning off instruction to balance pipe main line simultaneously.
A kind of coal damping lime set pressure tank control method the most according to claim 8, it is characterised in that:
When identifying and realize that the duty that interlocking motion end accepts is pre-Warm status of starting shooting, and the current lime set tank pressure accepted
When force value is 1kgf, issue instruction that aperture is 10% to action executing end；
When identifying and realize that the duty that interlocking motion end accepts is start shooting pre-Warm status or normal operating condition, and accept
Current lime set tank pressure force value when being 1.5-2kgf, issue instruction that aperture is 20% to action executing end；
When identifying and realize that the duty that interlocking motion end accepts is up state, and the current lime set tank pressure accepted
When force value is 4-6kgf, issue instruction that aperture is 40% to action executing end；
When identifying and realize that the duty that interlocking motion end accepts is up state, and the current lime set tank pressure accepted
When force value is 8-9kgf, issue instruction that aperture is 50% to action executing end.
A kind of coal damping lime set pressure tank control method the most according to claim 8, it is characterised in that:
Described " when the duty identified and the motion end that realizes interlocking accepts be exception or lime set pressure tank transfinite state time " in
The lime set pressure tank state that transfinites be specially more than 9kgf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510289797.6A CN106281388B (en) | 2015-05-29 | 2015-05-29 | Coal moisture control condensate tank pressure device and adjusting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510289797.6A CN106281388B (en) | 2015-05-29 | 2015-05-29 | Coal moisture control condensate tank pressure device and adjusting method thereof |
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| Publication Number | Publication Date |
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| CN106281388A true CN106281388A (en) | 2017-01-04 |
| CN106281388B CN106281388B (en) | 2020-05-19 |
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| CN201510289797.6A Active CN106281388B (en) | 2015-05-29 | 2015-05-29 | Coal moisture control condensate tank pressure device and adjusting method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113308262A (en) * | 2020-02-26 | 2021-08-27 | 宝山钢铁股份有限公司 | Adding device and method for coking by blending tar residue with coal |
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| GB488638A (en) * | 1935-12-12 | 1938-07-08 | Guardite Corp | Improvements in or relating to the treatment of materials, for example fumigation thereof |
| CN201530797U (en) * | 2009-10-13 | 2010-07-21 | 山西太钢不锈钢股份有限公司 | Gas carrying, dust removal and ash discharge device of coal moisture control technique |
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| CN113308262A (en) * | 2020-02-26 | 2021-08-27 | 宝山钢铁股份有限公司 | Adding device and method for coking by blending tar residue with coal |
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| CN106281388B (en) | 2020-05-19 |
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