CN104031662B - The temperature-rising method of a kind of coke dry quenching furnace and system - Google Patents
The temperature-rising method of a kind of coke dry quenching furnace and system Download PDFInfo
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- CN104031662B CN104031662B CN201410239998.0A CN201410239998A CN104031662B CN 104031662 B CN104031662 B CN 104031662B CN 201410239998 A CN201410239998 A CN 201410239998A CN 104031662 B CN104031662 B CN 104031662B
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Abstract
The present invention relates to energy recovery technical field, disclose temperature-rising method and the system of a kind of coke dry quenching furnace.Wherein, the method includes: cold coke is routed to exceed the position at the top, chute district of coke dry quenching furnace from the bottom of coke dry quenching furnace always；Hot coke is thrown into cold coke from the top of cold coke；Coke dry quenching furnace is carried out coke discharging, and is passed through circulated air；Temperature according to the circulated air after required heat exchange controls coke discharging speed and/or the wind speed of circulated air being passed through and/or air quantity.The present invention makes the cold coke in coke dry quenching furnace slowly be heated up, avoid high-temperature hot coke directly to contact with the chute district of coke dry quenching furnace, reduce the intensity of variation of thermal stress, ensure that the intact of refractory material at the chute district of coke dry quenching furnace, not only shorten warm up cycle, and extend the service life of refractory material.
Description
Technical field
The present invention relates to energy recovery technical field, be primarily adapted for use in the temperature-rising method of coke dry quenching furnace and be
System.
Background technology
In the routine use of dry coke quenching auxiliary, owing to dry coke quenching auxiliary needs the high temperature shape at about 900 DEG C
Running continuously under state, the most daily maintenance can not solve the recessiveness within dry coke quenching auxiliary with maintenance
Fault.Dry coke quenching auxiliary is required for stopping production annual overhaul, i.e. staff every year to be needed to enter coke dry quenching furnace etc.
The inside of equipment carries out the maintenance of hidden failure, works ensureing dry coke quenching auxiliary to can continue to normally.
Coke dry quenching furnace is important dry coke quenching auxiliary, and its structure is shaft furnace type body of heater, and internal layer is by laying fireproof bricks
Forming, therefore staff needs to overhaul and during hot operation State Transferring at the normal temperature of coke dry quenching furnace,
Character according to refractory material is planned completes heating and cooling work.Initial intensification management-control method be by
Coal gas is passed through coal gas burner, and coal gas burner probes into bottom coke dry quenching furnace, utilizes produced by gas-fired
Heat progressively heats up.The deficiency of this intensification management-control method is: step is numerous and diverse (to be made, install
Burner etc.), dangerous high (be poisoned, explode), warm up cycle length (job execution project is many),
Energy waste etc..
Construction in later period unit all uses and cold Jiao is first preloaded onto (central authorities blast cap top) bottom coke dry quenching furnace,
Throw the method for red Jiao again to carry out the intensification of coke dry quenching furnace, but owing to this kind of method needs 1000 DEG C
Red Jiao direct plunges into the cooling chamber of coke dry quenching furnace, and a large amount of red Jiao directly contact with chute district and boiler, temperature
Spending ± 100 DEG C of frequent fluctuation, thermal stress changes greatly.And the refractory material (ox at the road district of coke dry quenching furnace
Leg brick) due to structure complicated, under the influence of thermally stressed change rapidly cannot free wxpansion and send out
Raw fracture damage, has had a strong impact on the service life of bracket brick.And the heating-up time of this method is still
So needing 2-3 days, the longer heating-up time have impact on output and the energy (steaming of high-quality dry coke quenching charcoal
Vapour) recovery.
Summary of the invention
The technical problem to be solved is to provide temperature-rising method and the system of a kind of coke dry quenching furnace,
It can shorten warm up cycle in the case of ensureing that refractory material is intact.
For solving above-mentioned technical problem, the invention provides the temperature-rising method of a kind of coke dry quenching furnace, including:
Cold coke is routed to exceed the top, chute district of coke dry quenching furnace from the bottom of coke dry quenching furnace always
Position；
Hot coke is thrown into described cold coke from the top of described cold coke；
Described coke dry quenching furnace is carried out coke discharging, and is passed through circulated air；
Temperature according to the circulated air after required heat exchange controls coke discharging speed and/or the circulation being passed through
The wind speed of wind and/or air quantity.
Further, described coke dry quenching furnace is carried out coke discharging, and be passed through circulated air, including: pass through PLC
Coke discharging switching signal and draft switch signal are each separately sent to the valve bottom described coke dry quenching furnace
Door and circulating fan；Described valve bottom coke dry quenching furnace is opened after receiving described coke discharging switching signal
Open, it is achieved the coke discharging to described coke dry quenching furnace；Described circulating fan receives described draft switch signal
Rear operation, is passed through described circulated air in described coke dry quenching furnace.
Further, described coke dry quenching furnace is carried out coke discharging, also include: described PLC is by feed control
Signal is sent to the vibro-feeder at described valve inlet；Described vibro-feeder connects
Start working after receiving described feed control signal, coke discharge amount is controlled, and by described valve
Realize coke discharging.
Further, also include: at described coke dry quenching furnace with can heat exchanging at the air channel between equipment
After the temperature of circulated air measure.
Further, described at coke dry quenching furnace with can circulation after heat exchanging at the air channel between equipment
The temperature of wind measures, including: by being arranged between described coke dry quenching furnace and described energy equipment
Air channel in temperature measuring equipment the temperature of the circulated air after current heat exchange is measured, and measurement is arrived
Current temperature data be transferred to described PLC.
Further, the temperature of the circulated air after the heat exchange needed for described basis control coke discharging speed and/
Or the wind speed of the circulated air being passed through and/or air quantity, including: described PLC is based on following after required heat exchange
The temperature data of the circulated air after the temperature of ring wind and the current heat exchange that receives is by described coke discharging switch letter
Number and described feed control signal be each separately sent to the valve bottom described coke dry quenching furnace, described electricity
Magnetic vibration dispenser and/or vent control signal is sent to described circulating fan realize to coke discharging speed
The wind speed of the circulated air spent and/or be passed through and/or the control of air quantity.
Present invention also offers the temperature elevation system of a kind of coke dry quenching furnace, including: coke dry quenching furnace, valve,
Circulating fan, air channel, temperature measuring equipment, use energy equipment and PLC；Described valve is arranged on described dry put out
At the outlet at bottom of coke oven；The air outlet of described coke dry quenching furnace and the air intake vent of described energy equipment pass through
Described air channel connects；Described temperature measuring equipment is arranged in described air channel；The air outlet of described circulating fan
It is connected with the air intake vent of described coke dry quenching furnace, the air intake vent of described circulating fan and described energy equipment
Air outlet connects；Described PLC is with described valve, described circulating fan and described temperature measuring equipment signal even
Connect.
Further, also include: vibro-feeder；Described vibro-feeder is arranged on institute
State the porch of valve；Described vibro-feeder is connected with described PLC signal.
Further, described valve includes: rotary seal valve, electrical ball valve or electric butterfly valve.
The beneficial effects of the present invention is:
The temperature-rising method of the coke dry quenching furnace that the present invention provides and system, first by cold coke from coke dry quenching furnace
Bottom is routed to exceed the position at the top, chute district of coke dry quenching furnace always, then by high-temperature hot coke from cold
The top of coke is thrown on cold coke, and carries out coke discharging and be passed through circulated air, further according to required heat exchange
After the temperature of circulated air coke discharging and ventilation are controlled, make the cold coke in coke dry quenching furnace by slowly
Heat up, it is to avoid high-temperature hot coke directly contacts with the chute district of coke dry quenching furnace, reduces thermal stress
Intensity of variation, it is ensured that the refractory material at the chute district of coke dry quenching furnace intact, extends fire proofed wood
The service life of material.The present invention is in the case of ensureing that refractory material is intact, ahead of time by dry coke quenching auxiliary
Put into operation, shorten warm up cycle, it is achieved dry coke quenching auxiliary value maximization, not only ensure that height
The quick output of quality dry coke quenching charcoal, and achieve the recycling to steam energy.
Accompanying drawing explanation
The flow chart of the temperature-rising method of the coke dry quenching furnace that Fig. 1 provides for the embodiment of the present invention；
The structural representation of the temperature elevation system of the coke dry quenching furnace that Fig. 2 provides for the embodiment of the present invention.
Wherein, 1-coke dry quenching furnace, 2-chute district, 3-valve, 4-circulating fan, 5-air channel, 6-pot
Stove.
Detailed description of the invention
By technological means and effect that the present invention by reach predetermined goal of the invention taked is expanded on further,
Below in conjunction with accompanying drawing and preferred embodiment, to the temperature-rising method of the coke dry quenching furnace proposed according to the present invention and
Detailed description of the invention and the operation principle of system are described in detail.
See Fig. 1, the temperature-rising method of the coke dry quenching furnace that the embodiment of the present invention provides, including:
Step S110: coke dry quenching furnace is carried out warm air drying operation, thus in removing coke dry quenching furnace and one
Moisture in refractory brick marshalling when secondary deduster is built by laying bricks or stones；
Step S120: be always routed to exceed the oblique of coke dry quenching furnace from the bottom of coke dry quenching furnace by cold coke
The position at Dao Qu top；
Step S130: high-temperature hot coke is thrown into cold coke from the top of cold coke；
Step S140: coke dry quenching furnace is carried out coke discharging, and is passed through circulated air；
Being described further this step, this step specifically includes:
By PLC, coke discharging switching signal, feed control signal and draft switch signal are sent out the most respectively
Deliver to the valve bottom coke dry quenching furnace, vibro-feeder at valve inlet and circulating fan；
Valve bottom coke dry quenching furnace is opened after receiving coke discharging switching signal, it is achieved the row to coke dry quenching furnace
Burnt；Vibro-feeder is started working after receiving feed control signal, is controlled coke discharge amount,
And realize coke discharging by valve；Circulating fan runs after receiving draft switch signal, is led to by circulated air
Enter in coke dry quenching furnace.In the present embodiment, valve includes: rotary seal valve, electrical ball valve or electronic
Butterfly valve etc..
Step S150: at coke dry quenching furnace with can circulated air after heat exchanging at the air channel between equipment
Temperature measures.
Being described further this step, this step specifically includes:
By be arranged on coke dry quenching furnace and with can temperature measuring equipment in the air channel between equipment to current heat exchange
After the temperature of circulated air measure, and by measurement to current temperature data be transferred to PLC.
In the present embodiment, temperature measuring equipment includes: temperature sensor, temperature measuring set etc..
Step S160: according to the temperature of the circulated air after required heat exchange control coke discharging speed and/or
The wind speed of the circulated air being passed through and/or air quantity.
Being described further this step, this step specifically includes:
Circulation after PLC temperature based on the circulated air after required heat exchange and the current heat exchange that receives
Coke discharging switching signal and feed control signal are each separately sent to dry cooling coke furnace bottom by the temperature data of wind
The valve in portion, vibro-feeder and/or that vent control signal is sent to circulating fan is right to realize
Coke discharging speed and/or the wind speed of circulated air being passed through and/or the control of air quantity.
Needing exist for explanation, in order to reduce when coke discharging, coke moves down the chute to coke dry quenching furnace
The temperature shock in district, thus protect the intact of the refractory material at the chute district of coke dry quenching furnace further,
Before being routed in coke dry quenching furnace by cold coke, first the Surface Machining of cold coke is become the structure of indent.
Seeing Fig. 2, the embodiment of the present invention additionally provides the temperature elevation system of a kind of coke dry quenching furnace, including:
Coke dry quenching furnace 1, valve 3, vibro-feeder (being not shown), circulating fan 4, wind
Road 5, temperature measuring equipment (being not shown), with can equipment (boiler 6) and PLC is (the most in the drawings
Illustrate)；Valve 3 is arranged at the outlet at bottom of coke dry quenching furnace 1；Vibro-feeder is arranged on
The porch of valve 3；The air outlet of coke dry quenching furnace 1 and with can equipment air intake vent by air channel 5 even
Connect；Temperature measuring equipment is arranged in air channel 5；The air outlet of circulating fan 4 and the inlet air of coke dry quenching furnace 1
Mouth connects, and the air intake vent of circulating fan 4 is connected with the air outlet of energy equipment；PLC and valve 3, electricity
Magnetic vibration dispenser, circulating fan 4 and temperature measuring equipment signal connect.In the present embodiment, valve 3
Including: rotary seal valve, electrical ball valve or electric butterfly valve etc..Temperature measuring equipment includes: temperature sensor,
Temperature measuring set etc..
The intensification operation of coke dry quenching furnace is carried out, first by the surface of cold coke by putting down by the embodiment of the present invention
Face is processed as indent, then coke dry quenching furnace 1 is carried out warm air drying operation；Then by cold Jiao after processing
Charcoal is routed to exceed the position at top, chute district 2 from the bottom of coke dry quenching furnace 1 always, then by high temperature
Red heat coke is thrown into cold coke from the top of cold coke；Then start gradually coke discharging and be passed through circulated air,
Red heat coke accurately controls according to coke discharge amount and slowly close to top, chute district 2, circulated air is by dry coke quenching
The bottom of stove 1 flows up, and in chute district 2 and red heat coke heat, and flowed to by air channel 5
With energy equipment, it is achieved energy supply.It should be noted that by being arranged on the temperature measuring equipment pair on air channel 5
The temperature of the circulated air after heat exchange measures, and by measurement to current temperature data be sent to PLC.
Circulated air after PLC temperature based on the circulated air after required heat exchange and the current heat exchange that receives
Coke discharging switching signal and feed control signal are each separately sent to valve 3, electromagnetic vibration by temperature data
Dynamic dispenser and/or vent control signal is sent to circulating fan 4 realize coke discharging speed and/or
The wind speed of the circulated air being passed through and/or the control of air quantity.There is also the need to explanation, in order to make chute
The temperature in district 2 gradually grows steadily, thus avoids further chute district 2 is caused temperature shock,
During coke discharging, first carrying out coke discharging with minimum coke discharge amount, the temperature further according to the circulated air after heat exchange progressively adds
Big coke discharge amount.Meanwhile, in order to the temperature of the circulated air after preferably heat exchanging accurately controls,
When being passed through circulated air, first blow with minimal circulation air quantity, with the successive of dressing Jiao amount, be stepped up following
Ring air quantity.
The temperature-rising method of the coke dry quenching furnace that the embodiment of the present invention provides and system, first put out cold coke from dry
The bottom of coke oven is routed to exceed the position at the top, chute district 2 of coke dry quenching furnace 1 always, then high temperature is red
Hot coke is thrown into cold coke from the top of cold coke, and carries out coke discharging and be passed through circulated air, further according to
Coke discharging and ventilation are controlled by the temperature of the required circulated air after heat exchange, and make in coke dry quenching furnace 1 is cold
Coke is slowly heated up, it is to avoid high-temperature hot coke directly contacts with the chute district 2 of coke dry quenching furnace 1, fall
The low intensity of variation of thermal stress, it is ensured that the refractory material at the chute district 2 of coke dry quenching furnace 1 intact,
Extend the service life of refractory material.The embodiment of the present invention ensure refractory material intact in the case of,
Being put into operation by dry coke quenching auxiliary ahead of time, shorten warm up cycle, the shortening time reaches 50%, it is achieved that
The maximization that dry coke quenching auxiliary is worth, not only ensure that the quick output of the dry coke quenching charcoal of high-quality, and
And achieve the recycling to steam energy.Embodiment of the present invention temperature based on the circulated air after heat exchange
Coke discharging and ventilation are controlled by degree, not only achieve the bracket brick in the chute district 2 to coke dry quenching furnace 1
Steadily heat up, and temperature rise can be accurately controlled in ± excursion of 3 DEG C/H in, improve intensification
Precision.The embodiment of the present invention not only stopped the step existing for coke-stove gas temperature-rising method numerous and diverse,
The generation of the problems such as dangerous height, warm up cycle length, energy waste, and it is red to avoid existing throwing
The chute district 2 of the coke dry quenching furnace 1 caused because high/low temperature oscillatory surge is big existing for burnt temperature-rising method
The generation of the situation of the bracket brick generation fracture damage at place.
It should be noted last that, above detailed description of the invention is only in order to illustrate technical scheme
And unrestricted, although the present invention being described in detail with reference to example, the ordinary skill people of this area
Member should be appreciated that and can modify technical scheme or equivalent, without deviating from
The spirit and scope of technical solution of the present invention, it all should be contained in the middle of scope of the presently claimed invention.
Claims (9)
1. the temperature-rising method of a coke dry quenching furnace, it is characterised in that including:
Cold coke is routed to exceed the top, chute district of coke dry quenching furnace from the bottom of coke dry quenching furnace always
Position；
Hot coke is thrown into described cold coke from the top of described cold coke；
Described coke dry quenching furnace is carried out coke discharging, and is passed through circulated air；
Temperature according to the circulated air after required heat exchange controls coke discharging speed and/or the circulation being passed through
The wind speed of wind and/or air quantity；
Wherein, before cold coke is routed in coke dry quenching furnace, first the Surface Machining of cold coke is become
The structure of indent.
2. the temperature-rising method of coke dry quenching furnace as claimed in claim 1, it is characterised in that described to dry
Quenching stove carries out coke discharging, and is passed through circulated air, including: by PLC by coke discharging switching signal and ventilation
Switching signal is each separately sent to the valve bottom described coke dry quenching furnace and circulating fan；Described
Valve bottom coke dry quenching furnace is opened after receiving described coke discharging switching signal, it is achieved to described dry coke quenching
The coke discharging of stove；Described circulating fan runs, by described circulated air after receiving described draft switch signal
It is passed through in described coke dry quenching furnace.
3. the temperature-rising method of coke dry quenching furnace as claimed in claim 2, it is characterised in that described to dry
Quenching stove carries out coke discharging, also includes: feed control signal is sent to enter at described valve by described PLC
Vibro-feeder at Kou；After described vibro-feeder receives described feed control signal
Start working, coke discharge amount is controlled, and realize coke discharging by described valve.
4. the temperature-rising method of coke dry quenching furnace as claimed in claim 3, it is characterised in that also include:
At described coke dry quenching furnace with the temperature of circulated air after heat exchanging surveying at the air channel between equipment
Amount.
5. the temperature-rising method of coke dry quenching furnace as claimed in claim 4, it is characterised in that described dry
Quenching stove and with the temperature of circulated air after heat exchanging measuring at the air channel between equipment, including:
By be arranged on described coke dry quenching furnace and described can temperature measuring equipment in the air channel between equipment to currently
The temperature of the circulated air after heat exchange measures, and by measurement to current temperature data be transferred to institute
State PLC.
6. the temperature-rising method of coke dry quenching furnace as claimed in claim 5, it is characterised in that described basis
The temperature of the required circulated air after heat exchange controls coke discharging speed and/or the wind speed of circulated air being passed through
And/or air quantity, including: described PLC temperature based on the circulated air after required heat exchange with receive
The temperature data of the circulated air after current heat exchange is by described coke discharging switching signal and described feed control signal
Each it is separately sent to the valve bottom described coke dry quenching furnace, described vibro-feeder and/or will lead to
Wind control signal is sent to described circulating fan and realizes coke discharging speed and/or the circulated air that is passed through
Wind speed and/or the control of air quantity.
7. the temperature elevation system of a coke dry quenching furnace, it is characterised in that including: coke dry quenching furnace, valve,
Circulating fan, air channel, temperature measuring equipment, use energy equipment and PLC；Described valve is arranged on described dry put out
At the outlet at bottom of coke oven；The air outlet of described coke dry quenching furnace and the air intake vent of described energy equipment pass through
Described air channel connects；Described temperature measuring equipment is arranged in described air channel；The air outlet of described circulating fan
It is connected with the air intake vent of described coke dry quenching furnace, the air intake vent of described circulating fan and described energy equipment
Air outlet connects；Described PLC is with described valve, described circulating fan and described temperature measuring equipment signal even
Connect；Cold coke is routed to exceed the top, chute district of coke dry quenching furnace from the bottom of coke dry quenching furnace always
Position；Wherein, before cold coke is routed in coke dry quenching furnace, first by the Surface Machining of cold coke
Become the structure of indent.
8. the temperature elevation system of coke dry quenching furnace as claimed in claim 7, it is characterised in that also include:
Vibro-feeder；Described vibro-feeder is arranged on the porch of described valve；Described electricity
Magnetic vibration dispenser is connected with described PLC signal.
9. the temperature elevation system of coke dry quenching furnace as claimed in claim 8, it is characterised in that described valve
Including: rotary seal valve, electrical ball valve or electric butterfly valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410239998.0A CN104031662B (en) | 2014-05-30 | 2014-05-30 | The temperature-rising method of a kind of coke dry quenching furnace and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410239998.0A CN104031662B (en) | 2014-05-30 | 2014-05-30 | The temperature-rising method of a kind of coke dry quenching furnace and system |
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| Publication Number | Publication Date |
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| CN104031662A CN104031662A (en) | 2014-09-10 |
| CN104031662B true CN104031662B (en) | 2016-08-24 |
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| CN110655934A (en) * | 2019-11-05 | 2020-01-07 | 攀钢集团西昌钢钒有限公司 | Coke powder collection control device and control method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102206724A (en) * | 2011-05-03 | 2011-10-05 | 苏亚杰 | Method for coproducing directly reduced iron in process of coke dry quenching by coke oven gas |
| CN102559214A (en) * | 2011-12-21 | 2012-07-11 | 攀钢集团攀枝花钢钒有限公司 | Method for raising temperature in coke dry quenching furnace |
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2014
- 2014-05-30 CN CN201410239998.0A patent/CN104031662B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102206724A (en) * | 2011-05-03 | 2011-10-05 | 苏亚杰 | Method for coproducing directly reduced iron in process of coke dry quenching by coke oven gas |
| CN102559214A (en) * | 2011-12-21 | 2012-07-11 | 攀钢集团攀枝花钢钒有限公司 | Method for raising temperature in coke dry quenching furnace |
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Address after: 063210 Caofeidian Industrial Zone, Tangshan City, Hebei Province Co-patentee after: Shougang Jingtang Steel & Iron United Co., Ltd. Patentee after: Tangshan Shougang Jingtang Xishan Coking Co., Ltd. Co-patentee after: Shougang Group Co. Ltd. Address before: 063210 Caofeidian Industrial Zone, Tangshan City, Hebei Province Co-patentee before: Shougang Jingtang Steel & Iron United Co., Ltd. Patentee before: Tangshan Shougang Jingtang Xishan Coking Co., Ltd. Co-patentee before: Capital Iron & Steel General Company |