CN207738701U - The Bidirectional heating system of external-heat low order fine coal continuous shale oven - Google Patents
The Bidirectional heating system of external-heat low order fine coal continuous shale oven Download PDFInfo
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- CN207738701U CN207738701U CN201721812752.3U CN201721812752U CN207738701U CN 207738701 U CN207738701 U CN 207738701U CN 201721812752 U CN201721812752 U CN 201721812752U CN 207738701 U CN207738701 U CN 207738701U
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Abstract
The utility model is related to a kind of Bidirectional heating system of external-heat low order fine coal continuous shale oven, combustion chamber is set to the upper horizontal road at the top of flue, the lower horizontal road composition set on flue bottom by multiple flues；The top and bottom of each flue are equipped with coal gas burner, and coal gas burner is separately connected gas pipe；The one end in upper horizontal road is connected to the top of upper regenerative chamber, and regenerative chamber gas passage is set on the outside of upper regenerative chamber；The one end in lower horizontal road is connected to the bottom of lower regenerative chamber, and regenerative chamber gas passage is set on the outside of lower regenerative chamber.The utility model can individually adjust at the top of each flue or the heating load of bottom, grows uniformity to heating to improve carbonization chamber；Time by adjusting exchange cycle twice can form suitable temperature gradient；And it can avoid air and leak problem with heating gas string.
Description
Technical field
The utility model is related to low temperature distillation technical field in low-order coal more particularly to a kind of external-heat low order fine coal are continuous
The Bidirectional heating system of gas retort.
Background technology
Gas retort is made of carbonization chamber, combustion chamber and regenerative chamber, in conjunction with the production of external-heat low order fine coal continuous shale oven
Technological requirement, destructive distillation oven carbonization chamber are divided into dryer section, retort section and cooling section under by upper, need to supply in retort section and dryer section
Heat.Destructive distillation is different with dry required temperature, and 800~900 DEG C of temperature of furnace wall needed for retort section, dryer section required temperature is no more than
300℃.In addition, retort section 5~8m of height, needs the high upper temp of temperature of lower low, i.e., from lower formation temperature gradient on.And
It requires on same level absolute altitude that temperature is consistent as possible on carbonization chamber length direction, avoids heating uneven.
Used mode of heating is usually when externally heated retort oven production semicoke：Raw coke oven gas and sky are preheated by regenerative chamber
Gas, in such a way that upper and lower heating exchanges, i.e., then air and raw coke oven gas are passed through by entering horizontal gas road after regenerative chamber accumulation of heat
Coal gas and air lance carry out combustion or lower combustion, this heating exchanged form have the following disadvantages：
1) combustion flame of heating gas and air at the flue close to regenerative chamber, at separate regenerative chamber flue
Combustion flame it is big, cause to heat on carbonization chamber length direction uneven；
2) air and heating gas enter the horizontal road of up/down after exchanging heat simultaneously by regenerative chamber, and air and heating gas exist
It is separated by partition wall among horizontal road, burning of meeting after entering flue, but often occurs air and heating in actual production
Coal gas gone here and there in horizontal road leakage the case where, in horizontal air flue i.e. burn, easily lead to deflagration accident；
3) heating intensity of each flue can not be adjusted individually, can only adjust the heating load of entire row flue, adjust hand
The effect unobvious of section.
Invention content
The utility model provides a kind of Bidirectional heating system of external-heat low order fine coal continuous shale oven, can individually adjust
At the top of each flue or the heating load of bottom, uniformity to heating is grown to improve carbonization chamber；It is exchanged twice by adjusting
The time in period can form suitable temperature gradient；And it can avoid air and leak problem with heating gas string.
In order to achieve the above object, the utility model is realized using following technical scheme：
The Bidirectional heating system of external-heat low order fine coal continuous shale oven, including the combustion chamber being disposed adjacent and regenerative chamber,
The regenerative chamber is made of upper regenerative chamber and lower regenerative chamber, and heat storage is set respectively in 2 regenerative chambers；The combustion chamber is by multiple vertical
Quirk, be set to flue at the top of and coupled logical upper horizontal road, set on flue bottom and coupled logical lower level
Road forms；The top and bottom of each flue are equipped with coal gas burner, and coal gas burner connects one end of gas pipe, are set to vertical fire
The other end of the gas pipe of road bottom is connect after being passed down through lower horizontal road and sole plate with external coal gas steam line, is set to
The other end of gas pipe at the top of flue is connect after being upward through horizontal road and furnace roof with external coal gas steam line；Coal gas
Pipe can therewith be translated in furnace expansion；The one end in upper horizontal road is connected to the top of upper regenerative chamber, the outside of upper regenerative chamber
If upper regenerative chamber gas passage；The one end in lower horizontal road is connected to the bottom of lower regenerative chamber, and accumulation of heat is set on the outside of lower regenerative chamber
Room gas passage.
Regulating cock or regulating valve are set on the gas pipe stretched out except sole plate or furnace roof.
The heat storage is checker brick or heat exchanger.
Trepanning passes through the sole plate for corresponding gas pipe respectively with lower horizontal road bottom, gas pipe and lower horizontal road bottom
Gap between portion's trepanning is sealed by sealing cord；The hole opened up on sole plate is the elongated hole along furnace expansion direction；Stove
Top sets preformed hole and passes through for corresponding gas pipe, and the gap between gas pipe and furnace roof preformed hole is sealed by sealing cord.
Compared with prior art, the utility model has the beneficial effects that：
1) heating gas and air can be avoided to go here and there leakage in horizontal road, effectively prevent the generation of confined explosion's accident；
2) by individually adjusting the coal supply tolerance of each bottom or top gas pipe, can to each flue heating load into
Row is adjusted, to realize that carbonization chamber grows the uniformity to heating；
3) by adjusting the time of two exchange cycles, it is effectively formed external-heat low order fine coal continuous shale oven destructive distillation production
Required temperature gradient.
Description of the drawings
Fig. 1 is the structural schematic diagram of the Bidirectional heating system of external-heat low order fine coal continuous shale oven described in the utility model
One.
Fig. 2 is the portions the A enlarged drawing in Fig. 1.
Gas flow schematic diagram when Fig. 3 is the first exchange cycle of coke dry quenching furnace described in the utility model (upper combustion).
Gas flow schematic diagram when Fig. 4 is the second exchange cycle of coke dry quenching furnace described in the utility model (exchanging downwards).
In figure：1. 3. times regenerative chamber gas passages of regenerative chamber, 4. times regenerative chambers 5. adjust rotation on regenerative chamber gas passage 2. on
10. flue, 11. coal gas burner 12. furnace roof in horizontal road under horizontal road 9. on plug or 6. gas pipe of regulating valve, 7. sole plate 8.
13. sealing cord
Specific implementation mode
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
As shown in Figure 1 and Figure 2, the Bidirectional heating system of external-heat low order fine coal continuous shale oven described in the utility model, packet
The combustion chamber being disposed adjacent and regenerative chamber are included, the regenerative chamber is made of upper regenerative chamber 2 and lower regenerative chamber 4,2 regenerative chambers 2,4
Heat storage is inside set respectively；The combustion chamber is set to 10 top of flue and coupled logical upper level by multiple flues 10
Road 8 is formed set on 10 bottom of flue and coupled logical lower horizontal road 9；The top and bottom of each flue 10 are all provided with
Have a coal gas burner 11, coal gas burner 11 connects one end of gas pipe 6, be set to the other end of the gas pipe 6 of 10 bottom of flue to
Under connect with external coal gas steam line behind lower horizontal road 9 and sole plate 7, be set to the gas pipe 6 at the top of flue 10
The other end be upward through horizontal road 8 and furnace roof 12 after connect with external coal gas steam line；Gas pipe 6 can be swollen in furnace body
It is translated therewith when swollen；The one end in upper horizontal road 8 is connected to the top of upper regenerative chamber 2, and the outside of upper regenerative chamber 2 sets regenerative chamber gas
Body channel 1；The one end in lower horizontal road 9 is connected to the bottom of lower regenerative chamber 4, and the outside of lower regenerative chamber 4 is set regenerative chamber gas and led to
Road 3.
Regulating cock or regulating valve 5 are set on the gas pipe 6 stretched out except sole plate 7 or furnace roof 12.
The heat storage is checker brick or heat exchanger.
Trepanning passes through the sole plate 7 for corresponding gas pipe 6 respectively with lower 9 bottom of horizontal road, gas pipe 6 and lower level
Gap between 9 bottom opening of road is sealed by sealing cord 13；The hole opened up on sole plate 7 is the length along furnace expansion direction
Shape hole；Furnace roof 12 sets preformed hole and passes through for corresponding gas pipe 6, and the gap between gas pipe 6 and furnace roof preformed hole passes through sealing cord
13 sealings.
The heating means of external-heat low order fine coal continuous shale oven based on Bidirectional heating system described in the utility model, packet
Include following steps：
1) as shown in figure 3, in first exchange cycle of gas retort, enter lower regenerative chamber 4 from lower regenerative chamber gas passage 3
Air enters lower horizontal road 9 after the heat storage heating in lower regenerative chamber 4；The gas pipe 6 of 10 bottom of flue is passed through heating coal
Gas, the air after preheating burn with heating gas at the coal gas burner 11 of 10 bottom of flue, and the flame generated after burning exists
It is elongated in the flue 10 of 11 top of corresponding coal gas burner, the hot waste gas after burning enters upper after being collected by upper horizontal road 8
Regenerative chamber 2, the heat storage in heating in regenerative chamber 2, the exhaust gas after heat exchange are discharged from upper regenerative chamber gas passage 1, eventually by
It is arranged outside chimney；
2) as shown in figure 4, in second exchange cycle of gas retort, gas flow direction changes, logical from upper regenerative chamber gas
The air that road 1 enters upper regenerative chamber 2 enters upper horizontal road 8 after heat storage exchanges heat and obtains heat, at this time at the top of flue 10
Coal gas is passed through in gas pipe 6, the air after preheating meets downwards with heating gas at the coal gas burner 11 at 10 top of flue
Burning, the hot waste gas after burning are flowed downward by each flue 10, the regenerative chamber 4 in the case where entering after lower horizontal road 9 collects, heating
Heat storage in lower regenerative chamber 4, the exhaust gas after heat exchange are discharged from lower regenerative chamber gas passage 3, are arranged eventually by outside chimney；
3) alternately, so cycle completes the heating process of gas retort for step 1) and step 2).
The coal supply tolerance of each bottom or top gas pipe 6 can be individually adjusted by regulating cock or regulating valve 5, to
Adjust the heating load of each flue 10.
The time of first exchange cycle of gas retort and the second exchange cycle of gas retort can be adjusted respectively according to furnace temperature, be met
The temperature gradient of production requirement.
The preferable specific implementation mode of the above, only the utility model, but the scope of protection of the utility model is not
Be confined to this, any one skilled in the art within the technical scope disclosed by the utility model, according to this practicality
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (4)
1. the Bidirectional heating system of external-heat low order fine coal continuous shale oven, including the combustion chamber being disposed adjacent and regenerative chamber, institute
It states regenerative chamber to be made of upper regenerative chamber and lower regenerative chamber, heat storage is set respectively in 2 regenerative chambers；It is characterized in that, the burning
Room is set at the top of flue and coupled logical upper horizontal road, is set to flue bottom and coupled by multiple flues
Logical lower horizontal road composition；The top and bottom of each flue are equipped with coal gas burner, and coal gas burner connects the one of gas pipe
End is passed down through after lower horizontal road and sole plate and external coal gas air supply pipe set on the other end of the gas pipe of flue bottom
Road connects, and the other end of the gas pipe at the top of flue is upward through after upper horizontal road and furnace roof and external coal gas air supply pipe
Road connects；Gas pipe can therewith be translated in furnace expansion；The one end in upper horizontal road is connected to the top of upper regenerative chamber, upper storage
Regenerative chamber gas passage is set on the outside of hot cell；The one end in lower horizontal road is connected to the bottom of lower regenerative chamber, outside lower regenerative chamber
Set regenerative chamber gas passage in side.
2. the Bidirectional heating system of external-heat low order fine coal continuous shale oven according to claim 1, which is characterized in that stretch
Regulating cock or regulating valve are set on the gas pipe gone out except sole plate or furnace roof.
3. the Bidirectional heating system of external-heat low order fine coal continuous shale oven according to claim 1, which is characterized in that institute
It is checker brick or heat exchanger to state heat storage.
4. the Bidirectional heating system of external-heat low order fine coal continuous shale oven according to claim 1, which is characterized in that institute
Stating sole plate, trepanning passes through for corresponding gas pipe respectively with lower horizontal road bottom, between gas pipe and lower horizontal road bottom opening
Gap sealed by sealing cord；The hole opened up on sole plate is the elongated hole along furnace expansion direction；Furnace roof sets preformed hole
Pass through for corresponding gas pipe, the gap between gas pipe and furnace roof preformed hole is sealed by sealing cord.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721812752.3U CN207738701U (en) | 2017-12-22 | 2017-12-22 | The Bidirectional heating system of external-heat low order fine coal continuous shale oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721812752.3U CN207738701U (en) | 2017-12-22 | 2017-12-22 | The Bidirectional heating system of external-heat low order fine coal continuous shale oven |
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| CN207738701U true CN207738701U (en) | 2018-08-17 |
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| CN201721812752.3U Active CN207738701U (en) | 2017-12-22 | 2017-12-22 | The Bidirectional heating system of external-heat low order fine coal continuous shale oven |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107936999A (en) * | 2017-12-22 | 2018-04-20 | 中冶焦耐(大连)工程技术有限公司 | The Bidirectional heating system and heating means of external-heat low order fine coal continuous shale oven |
-
2017
- 2017-12-22 CN CN201721812752.3U patent/CN207738701U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107936999A (en) * | 2017-12-22 | 2018-04-20 | 中冶焦耐(大连)工程技术有限公司 | The Bidirectional heating system and heating means of external-heat low order fine coal continuous shale oven |
| CN107936999B (en) * | 2017-12-22 | 2024-03-19 | 中冶焦耐(大连)工程技术有限公司 | Bidirectional heating system and heating method of external heating type low-order pulverized coal continuous carbonization furnace |
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