CN204569958U - Furnace drying device - Google Patents
Furnace drying device Download PDFInfo
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- CN204569958U CN204569958U CN201520029134.6U CN201520029134U CN204569958U CN 204569958 U CN204569958 U CN 204569958U CN 201520029134 U CN201520029134 U CN 201520029134U CN 204569958 U CN204569958 U CN 204569958U
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- Prior art keywords
- pipe line
- gas pipe
- protective tube
- drying device
- gas
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Abstract
The utility model discloses a kind of furnace drying device, comprise thermopair, protective tube, gas pipe line, magnetic valve, tempering unit.Protective tube is close to gas pipe line and is installed, and be arranged in parallel with gas pipe line, and leave certain distance between the head of protective tube and the head of gas pipe line, thermopair is arranged in protective tube, and the afterbody of gas pipe line is provided with magnetic valve and tempering unit.Furnace drying device simple structure of the present utility model, invest low, convenient disassembly, easy handling, in use procedure without flame-out phenomenon, Baker effect is obvious, flame can be made to be burnt uniformly, and can reach after flame-out and automatically close cutting function, not affect the work of normal heat wind furnace, ensure the normal use of blast furnace air temperature, reduce energy consumption.
Description
Technical field
The utility model relates to a kind of baker, more particularly, relates to furnace drying device.
Background technology
After hot-blast outlet short tube building construction terminates, because the hotblast stove black furnace repair time is longer, hotblast stove long-time convection current cooling situation lower combustion chamber and dome temperature lower, and blast furnace gas combustion point is higher.Therefore Combustion of Hot Air Furnace must light blast furnace gas with naked light, utilize the refractory materials of the heat radiation of gas-fired to hot-blast outlet short tube to toast simultaneously, make refractory materials even inflation, moisture content slowly overflows, and avoids because rapid expansion causes the damage of refractory materials.
Current hotblast stove heat drying furnace device has: natural ventilation negative-pressure oven device and hotblast stove start burner.
Natural ventilation negative-pressure oven device: this device stopping property is poor, require higher to the draft of hotblast stove chimney, need the use stopping hotblast stove preheater, need the amount of flue gas emission controlling the hotblast stove that other normally uses simultaneously, blast furnace air temperature between drying-out period is caused to decline 50 DEG C ~ 80 DEG C, and exhaust gas volumn is wayward between drying-out period, easily stop working, affect baker progress.
Hotblast stove starts burner: this device belongs to malleation furnace drying device, and invest high, profile is huge, and valve is many, takes up an area large, installs inconvenient, uses inconvenient for hot-blast stove baking oven after maintenance.
Due to the drawback that aforesaid method is implemented, current employing baker firing technique is the iron pipe at a use length about 2 meters ∮ 6mm, at iron pipe one termination rubber tubing, the inflammable gass such as coal gas are loaded in leather hose, the other one section of direct then gas exit of rubber tubing, when the magnetic valve that turns on the gas-fire, coal gas is transported to iron pipe by rubber tubing, then light at iron pipe outlet naked light, then iron pipe is stretched in hotblast stove stove carry out baker work.
Aforesaid method can simply reach baker operation, but due to middle use equipment too simple, have certain potential safety hazard:
1, rubber tubing is directly connected with gas line by iron pipe, in fact to only have on gas line a magnetic valve to control the switch of air-flow.
2, need special messenger to guard during baker in case kindling material extinguishes, may gas leak be caused.
3, iron pipe toasts easy thawing for a long time, needs quantitative check, changes.
4, this facility is without chain measure of control and protector, at the bottom of operational safety coefficient.
According to the condition analysis of gas explosion, one is form volatile mixed gas concentration, and two is reach point of ignition.If first give coal gas, may at a time in, coal gas and air form explosive mixed gas concentration, if now give fire, two conditions possess simultaneously, gas explosion will occur.On the contrary, first giving fire, then give coal gas, when not forming explosive mixed gas concentration with regard to incendivity, avoiding gas explosion.For this reason, first must give fire, give coal gas afterwards.
Current terms of settlement: be as much as possible magnetic valve is left little, simultaneously double monitoring, or the leakage of installing that gas leak detector avoids causing because kindling material extinguishes at the scene, but do like this and still there is potential safety hazard, gas leak detector with stylish installation is only useful when baker, and utilization ratio is not high.
Contrast existing patent: a kind of hotblast stove malleation furnace drying device (application number: CN201220613360.5), can only work under positive pressure, and without tempering unit and extinction temperature inspection units (thermopair), there is limitation and insecurity.Therefore, safe baker under blast funnace hot blast stove condition of negative pressure, cannot realize.
Utility model content
For the problem that security during the baker igniting existed in prior art is not high, the purpose of this utility model is to provide furnace drying device.
For achieving the above object, the utility model adopts following technical scheme:
A kind of furnace drying device, comprises thermopair, protective tube, gas pipe line, magnetic valve, tempering unit.Protective tube is close to gas pipe line and is installed, and be arranged in parallel with gas pipe line, and leave certain distance between the head of protective tube and the head of gas pipe line, thermopair is arranged in protective tube, and the afterbody of gas pipe line is provided with magnetic valve and tempering unit.
According to an embodiment of the present utility model, also comprise flange, flange is installed on the afterbody of protective tube.
According to an embodiment of the present utility model, also comprise short tube, short tube is connected with tempering unit.
According to an embodiment of the present utility model, the head of gas pipe line is provided with multiple fire output hole.
According to an embodiment of the present utility model, thermopair connects temperature indicator, Alarm Detector and indicating meter.
According to an embodiment of the present utility model, the spacing between 2 adjacent fire output holes is 2cm.
In technique scheme, furnace drying device simple structure of the present utility model, invests low, convenient disassembly, easy handling, in use procedure without flame-out phenomenon, Baker effect is obvious, and flame can be made to be burnt uniformly, and can reach after flame-out and automatically close cutting function, do not affect the work of normal heat wind furnace, ensure the normal use of blast furnace air temperature, reduce energy consumption.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model furnace drying device;
Fig. 2 is the structural representation of thermopair and coupling device thereof;
Fig. 3 is the pilot circuit figure of the utility model furnace drying device.
Embodiment
The technical solution of the utility model is further illustrated below in conjunction with drawings and Examples.
With reference to Fig. 1, the utility model discloses a kind of furnace drying device, and its major parts comprises thermopair, protective tube, gas pipe line, magnetic valve, tempering unit, flange, short tube, temperature indicator, Alarm Detector and indicating meter.Describe structure and the annexation of above-mentioned all parts below in detail.
As shown in Figure 1, protective tube is close to gas pipe line and is installed, and be fixed on gas pipe line top, be arranged in parallel with gas pipe line, and leave certain distance between the head of protective tube and the head of gas pipe line, flange is fixedly installed in the afterbody of protective tube.Thermopair is arranged in protective tube, and it also connects temperature indicator, Alarm Detector and indicating meter, and Alarm Detector can be hummer.
Gas pipe line head is processed multiple circular fire output hole, and its afterbody is provided with magnetic valve and tempering unit, and short tube is connected with tempering unit.Specifically, the afterbody of gas pipe line is connected with magnetic valve, connects tempering unit and connect short tube again after magnetic valve.
According to said structure, as depicted in figs. 1 and 2, at hotblast stove fire hole, an interim thermopair (useful range is at 0---900 DEG C) is installed, toasts with blast furnace gas combustion.With fire hole temperature for foundation, also to take into account air heating furnace roof temperature simultaneously, if throat temperature lift velocity exceedes baking plan regulation, baking speed will be slowed down.The adjustment of storing temperature, realizes by the aperture of increase and decrease gas regulator and the coal gas amount of adjustment gas-fired.Baking flame must not burn the surface of prefabricated section, strictly will press curve and heat up, guarantee not damage refractory masonry.
Suddenly extinguish if run into kindling material when baker because of a variety of causes, the thermoelectric force of so on-the-spot thermopair will lower, and the temperature value simultaneously on secondary instrument also can reduce, and just can know that on-the-spot kindling material may extinguish, avoid the generation of gas leak.
After baker completes, total valve can be closed, and then by the closed electromagnetic valve before gas pipe line, because there is tempering unit, so combustion explosion can not be caused because of tempering, serve safe effect.
As depicted in figs. 1 and 2, in actual field furnace operation process, when needs carry out baker operation to hotblast stove, first combustion medium source of the gas is connected with short tube, then source of the gas total valve is first opened, open the magnetic valve after short tube again, gas by gas pipe line by fire output hole out, because fire output hole has equally distributed aperture to make, so source of the gas and flame can be relatively stable, controlled, can be controlled source of the gas size by magnetic valve before simultaneously, thermopair in the thermocouple protective casing now linked together with gas pipe line is started working, along with the rising of temperature, hot thermocouple electromotive force changes, can be controlled in real time in situ temperature by secondary instrument.
With reference to Fig. 3, pilot circuit of the present utility model comprises stop button TA, start button QA, K switch, transfer lever SW, relay R, contactor C.
When hotblast stove carries out baker operation, open combustion chamber and peep fire hole valve and blind plate, combustion medium source of the gas is connected with short tube, then source of the gas total valve is first opened, open the magnetic valve after short tube again, gas by gas pipe line by fire output hole (each pitch of holes 2cm of circle 6 row) out, after ignition combustion medium, burning torch is filled in from peeping fire hole, because fire output hole has equally distributed aperture to make, so source of the gas and flame can be relatively stable, controlled, and become large with the contact area of air, more not easily stop working, can be controlled source of the gas size by magnetic valve before simultaneously.
Thermopair during baker and in the thermocouple protective casing that links together of gas pipe line is started working; along with the rising of temperature; hot thermocouple electromotive force changes; can be controlled in real time in situ temperature by temperature indicator; drop to the alarming value (being less than 20 DEG C) of setting once the flame-out temperature of generation, operator understand Timeliness coverage process.
Because the hotblast stove black furnace repair time is longer, hotblast stove long-time convection current cooling situation lower combustion chamber and dome temperature lower, Combustion of Hot Air Furnace must light blast furnace gas with naked light, utilize the refractory materials of the heat radiation of little gas-fired to hot-blast outlet short tube to toast, make refractory materials even inflation, moisture content slowly overflows simultaneously, but the bake process time wants 16 hours, naked light extinguishes at any time because of a variety of causes, can not find the very first time again, affects the normal production of blast furnace.This device is made up of two parts at present; a part has circular fire output hole to increase the contact area with air for lighter for ignition head, and another part adds thermopair and protective tube, timely displays temperature when simultaneously stopping working; be sent to indicating meter by data, play real-time supervisory function bit.
Therefore, in sum, apparatus structure of the present utility model is simple, easy to operate, simultaneously with low cost, effectively can prevent fray-out of flame, avoid gas leak.
Those of ordinary skill in the art will be appreciated that, above embodiment is only used to the utility model is described, and be not used as restriction of the present utility model, as long as in spirit of the present utility model, all will drop in Claims scope of the present utility model the change of the above embodiment, modification.
Claims (6)
1. a furnace drying device, is characterized in that, comprising:
Thermopair, protective tube, gas pipe line, magnetic valve, tempering unit;
Described protective tube is close to described gas pipe line and is installed, and be arranged in parallel, and leave certain distance between the head of protective tube and the head of gas pipe line with described gas pipe line;
Described thermopair is arranged in described protective tube;
The afterbody of described gas pipe line is provided with described magnetic valve and tempering unit.
2. furnace drying device as claimed in claim 1, it is characterized in that, also comprise flange, described flange is installed on the afterbody of described protective tube.
3. furnace drying device as claimed in claim 1, it is characterized in that, also comprise short tube, described short tube is connected with described tempering unit.
4. furnace drying device as claimed in claim 1, it is characterized in that, the head of described gas pipe line is provided with multiple fire output hole.
5. furnace drying device as claimed in claim 1, is characterized in that, described thermopair connects temperature indicator, Alarm Detector and indicating meter.
6. furnace drying device as claimed in claim 4, it is characterized in that, the spacing between 2 adjacent fire output holes is 2cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520029134.6U CN204569958U (en) | 2015-01-15 | 2015-01-15 | Furnace drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520029134.6U CN204569958U (en) | 2015-01-15 | 2015-01-15 | Furnace drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204569958U true CN204569958U (en) | 2015-08-19 |
Family
ID=53862626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520029134.6U Expired - Fee Related CN204569958U (en) | 2015-01-15 | 2015-01-15 | Furnace drying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204569958U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108823344A (en) * | 2018-08-09 | 2018-11-16 | 上海二十冶建设有限公司 | The method for dismounting of dry-off oven device for blast furnace under a kind of restricted clearance |
-
2015
- 2015-01-15 CN CN201520029134.6U patent/CN204569958U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108823344A (en) * | 2018-08-09 | 2018-11-16 | 上海二十冶建设有限公司 | The method for dismounting of dry-off oven device for blast furnace under a kind of restricted clearance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20160115 |
|
| EXPY | Termination of patent right or utility model |