CN205856386U - During a kind of heating furnace exchange, heating gas diffuses retracting device - Google Patents
During a kind of heating furnace exchange, heating gas diffuses retracting device Download PDFInfo
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- CN205856386U CN205856386U CN201620794047.4U CN201620794047U CN205856386U CN 205856386 U CN205856386 U CN 205856386U CN 201620794047 U CN201620794047 U CN 201620794047U CN 205856386 U CN205856386 U CN 205856386U
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Abstract
During a kind of heating furnace exchange, heating gas diffuses retracting device, and including some heating furnaces, the gas exit of each heating furnace enters gas chamber through desulfurizing tower, deammoniation tower with after washing benzene column after gas-liquid separator, primary cooler, aerator again；Wherein, heating furnace basement water seal tank import is connected with heating supervisor, and water seal tank import department is provided with regulation valve, heating furnace basement water seal tank exports out and is provided with regulation valve, and the outlet of heating furnace basement water seal tank is connected with the entrance of primary cooler or is connected with the pipeline between gas chamber and feed gas compressor.This utility model has saved investment, decrease construction volume, efficient recovery emission coal gas.Gas recovery is respond well, not only decreases environmental pollution but also reclaimed efficient resource.When calculating employing exchange according to single seat heating furnace, heating gas diffuses recovery technology and will reclaim emission coal gas 430,000 m the year after next3, effectively reduce production cost, decrease the wasting of resources, improve energy utilization rate.
Description
Technical field
When this utility model relates to a kind of heating furnace exchange, heating gas diffuses retracting device.
Background technology
For heat can be obtained during coking by coke oven, by external coke-stove gas or blast furnace gas from coke oven basement
Heating gas system enter coke oven combustion chamber burn, to coke oven provide heat.For guaranteeing that coke oven furnace wall is uniformly subject to
Heat, in coke oven production process, 0.5h once exchanges heating.When exchange heating, coal gas about 30s stopped using by coke oven,
Coal gas main pipe pressure can drastically raise, when gas pressure exceed basement coal gas supervisor end water seal pressure time, coal gas just from
Water seal exhaust stack directly empties and diffuses, and causes certain environmental pollution and energy waste.
For 4 groups of 8 5.5 meters of tamping type coke ovens, have 8 set coke oven basement heating systems.Coke oven is producing
During use 9-2 coke pushing string sequence produce, within every 30 minutes, once add heat exchange, adding heat exchanger time is 46s.Heating system
During exchange, first close coal gas system, stop heating, then start the exchange of air, waste gas, after air, waste gas exchange,
Turn on the gas-fire again and carry out combustion heating.Temperature measurer each two hour utilizes infrared thermometer to carry out detecting temperature, root to furnace roof
Regulate heating gas flow according to temperature conditions and regulate main chimney flue and the suction of point flue accordingly, it is ensured that the equilibrium of coke oven temperature.
In exchange process, when after Gas shutoff, coke oven stops heating, and the pressure of coke oven heating supervisor is when normal
About 1.5kpa, 4 identical with main pipe pressure raised rapidly～about 5kpa, gas pressure raises rear portion coal gas and breaks through
The water seal of heating supervisor's end directly empties diffuses, and causes gaspipe network pressure oscillation big, wastes the energy, pollutes environment.
Utility model content
For the problems of the prior art, heating gas when the purpose of this utility model is to provide a kind of heating furnace exchange
Diffuse retracting device, this device can gas recovery, not only decrease environmental pollution but also reclaimed efficient resource, effectively reduce life
Produce cost.
For achieving the above object, this utility model adopts the following technical scheme that:
During a kind of heating furnace exchange, heating gas diffuses retracting device, including some heating furnaces, the coal gas of each heating furnace
Outlet after gas-liquid separator, primary cooler, aerator again through desulfurizing tower, deammoniation tower with enter gas chamber after washing benzene column；Wherein, add
Hot stove basement water seal tank import is connected with heating supervisor, and water seal tank import department is provided with regulation valve, heating furnace underground
Room water seal tank exports out and is provided with regulation valve, and the outlet of heating furnace basement water seal tank is connected or and coal gas with the entrance of primary cooler
Pipeline between cabinet and feed gas compressor is connected.
This utility model is further improved by, and washes benzene column outlet conduit and is also connected with heating furnace basement.
This utility model is further improved by, and the gas exit of described heating furnace is through π type pipe and gas-liquid separator phase
Connection.
This utility model is further improved by, and the outlet of described gas chamber fills with coal gas deep processing through feed gas compressor
Put and be connected.
This utility model is further improved by, and described heating furnace quantity is 5～20.
This utility model is further improved by, and described heating furnace is also associated with heating furnace negative-pressure pipeline.
Compared with prior art, this utility model has the advantages that this utility model has saved investment, decreases and executes
Work amount, efficient recovery emission coal gas.Gas recovery is respond well, not only decreases environmental pollution but also reclaimed efficient resource.Press
When calculating employing exchange according to single seat heating furnace, heating gas diffuses recovery technology and will reclaim emission coal gas 430,000 m the year after next3, effectively reduce
Production cost, decreases the wasting of resources, improves energy utilization rate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein, 1 is heating furnace, and 2 is π type pipe, and 3 is gas-liquid separator, and 4 is primary cooler, and 5 is aerator, and 6 is desulfurizing tower, 7
For deammoniation tower, 8 for washing benzene column, and 9 is gas chamber, and 10 is feed gas compressor 10, and 11 is coal gas deep processing device.
Detailed description of the invention
This utility model is described in detail by Structure Figure below.
Seeing Fig. 1, this utility model includes 8 heating furnaces 1, the gas exit of each heating furnace 1 through π type pipe 2 again through gas
Being divided into two-way through desulfurizing tower 6, deammoniation tower 7 with after washing benzene column 8 again after liquid/gas separator 3, primary cooler 4, aerator 5, a road enters coal
Gas holder 9, another road is connected with heating furnace basement.Wherein, heating furnace basement water seal tank import is connected with heating supervisor,
And water seal tank import department is provided with regulation valve, heating furnace basement water seal tank exports out and is provided with regulation valve, heating furnace underground
Room water seal tank outlet is connected with the entrance of primary cooler 4 or is connected with the pipeline between gas chamber 9 and feed gas compressor 10.
Wherein, gas chamber 9 exports and is connected with coal gas deep processing device 11 through feed gas compressor 10.
Heating furnace coal gas is after the technique such as the coldest, pressurization, desulfurization, deamination, de-benzene purifies, after washing benzene column before gas chamber
Being divided into two-way, a road goes gas chamber for methanol as unstripped gas.Pipeline of leading up to is delivered to basement and is used as firing tunnel in coking furnace.
Regulation valve in this utility model is for driving fast valve (can open or close within 3s) soon.
Principles of Regulation: with heated by gas supervisor's terminal pressure as controlling value, the heating supervisor end when heating furnace is in commutation
Pressure is increased to 2.5KPa (the highest meeting is increased to 4～5KPa) regulation valve and automatically opens up coal gas is discharged into heating furnace negative-pressure pipeline
Or gas chamber outlet conduit.When heating furnace commutation end begins to warm up, under heating supervisor's terminal pressure
Dropping to during 1KPa (safety requirements cannot be below 500Pa), regulation valve cuts out and keeps heating supervisor's terminal pressure to exist
More than 1KPa, maintain heating furnace normal heating (during heating furnace normal heating heating supervisor terminal pressure typically 1.2～
1.5KPa, safe operation requires 500～3000Pa).
During utility model works, heated by gas supervisor's end is diffused transformation, 3KPa reduces to 2KPa, the coal when exchange
After gas heating main pipe pressure is more than 2KPa, automatically breaks through water seal and diffuse.The coal gas diffused enters coal gas in the following way
System.
Mode 1: the emission coal gas of recovery is entered heating furnace negative-pressure pipeline or emission coal gas is guided to heating furnace negative pressure
At pipeline " P " type pipe.Such advantage is that pipeline investment is few, does not the most increase water seal for coal gas.
Mode 2: the emission coal gas that will reclaim enters the gas piping after gas chamber before the feed gas compressor import of chemical plant.
Advantage is that the long buffer capacity of pipeline is big, does not interferes with collecting main pressure.
Mode 3: the emission coal gas reclaimed is entered negative-pressure pipeline before primary cooler.Advantage is: because 8 heating furnaces are at half
All completing in hours once to exchange, during every heating furnace exchange, emission coal gas has discontinuity, but 8 heating furnaces are aggregated into one
Individual system defines the coal gas diffused continuously.Negative-pressure pipeline is entered owing to diffusing continuous, stable quantitative coal gas, will not be to negative pressure
System impacts formula fluctuation.Duct length and investment are placed in the middle.Gas-blowing engine does not stops not have and does not reclaims phenomenon.
Carry out selecting the one in aforesaid way according to on-site actual situations.In this utility model as a example by 8 heating furnaces,
It is not limited to 8,5-20 platform.
This utility model advantage is: investment reduces by one group of regulation valve, does technological transformation without on heating main pipeline.
This utility model has saved investment, decrease construction volume, efficient recovery emission coal gas.Gas recovery effect is good
Good, both decrease environmental pollution and reclaim efficient resource.Calculate heating gas when using exchange to diffuse according to single seat heating furnace
Recovery technology will reclaim emission coal gas 430,000 m the year after next3, effectively reduce production cost.
Claims (6)
1. during a heating furnace exchange, heating gas diffuses retracting device, it is characterised in that include some heating furnaces (1), each
The gas exit of heating furnace (1) after gas-liquid separator (3), primary cooler (4), aerator (5) again through desulfurizing tower (6), deammoniation tower
And wash benzene column (8) and enter gas chamber (9) afterwards (7)；Wherein, heating furnace basement water seal tank import is connected with heating supervisor, and
And water seal tank import department is provided with regulation valve, heating furnace basement water seal tank exports out and is provided with regulation valve, heating furnace basement
Water seal tank outlet be connected with the entrance of primary cooler (4) or and gas chamber (9) and feed gas compressor (10) between pipeline phase
Connection.
During a kind of heating furnace exchange the most according to claim 1, heating gas diffuses retracting device, it is characterised in that wash benzene
Tower (8) outlet conduit is also connected with heating furnace basement.
During a kind of heating furnace exchange the most according to claim 1, heating gas diffuses retracting device, it is characterised in that described
The gas exit of heating furnace (1) is connected with gas-liquid separator (3) through π type pipe (2).
During a kind of heating furnace exchange the most according to claim 1, heating gas diffuses retracting device, it is characterised in that described
Gas chamber (9) outlet is connected with coal gas deep processing device (11) through feed gas compressor (10).
During a kind of heating furnace exchange the most according to claim 1, heating gas diffuses retracting device, it is characterised in that described
Heating furnace (1) quantity is 5～20.
During a kind of heating furnace exchange the most according to claim 1, heating gas diffuses retracting device, it is characterised in that described
Heating furnace (1) is also associated with heating furnace negative-pressure pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620794047.4U CN205856386U (en) | 2016-07-26 | 2016-07-26 | During a kind of heating furnace exchange, heating gas diffuses retracting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620794047.4U CN205856386U (en) | 2016-07-26 | 2016-07-26 | During a kind of heating furnace exchange, heating gas diffuses retracting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205856386U true CN205856386U (en) | 2017-01-04 |
Family
ID=57648725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620794047.4U Active CN205856386U (en) | 2016-07-26 | 2016-07-26 | During a kind of heating furnace exchange, heating gas diffuses retracting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205856386U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111334315A (en) * | 2020-03-31 | 2020-06-26 | 中冶焦耐(大连)工程技术有限公司 | Method for collecting overpressure diffused gas of coke oven gas |
| CN114763478A (en) * | 2021-01-13 | 2022-07-19 | 宝山钢铁股份有限公司 | Coke oven heating gas exchange system cock handle breakage detection device |
-
2016
- 2016-07-26 CN CN201620794047.4U patent/CN205856386U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111334315A (en) * | 2020-03-31 | 2020-06-26 | 中冶焦耐(大连)工程技术有限公司 | Method for collecting overpressure diffused gas of coke oven gas |
| CN114763478A (en) * | 2021-01-13 | 2022-07-19 | 宝山钢铁股份有限公司 | Coke oven heating gas exchange system cock handle breakage detection device |
| CN114763478B (en) * | 2021-01-13 | 2023-02-14 | 宝山钢铁股份有限公司 | Cock handle fracture detection device for coke oven heating gas exchange system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |