CN207738686U - The one-way heating system of external-heat low order fine coal continuous shale oven - Google Patents
The one-way heating system of external-heat low order fine coal continuous shale oven Download PDFInfo
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- CN207738686U CN207738686U CN201721812751.9U CN201721812751U CN207738686U CN 207738686 U CN207738686 U CN 207738686U CN 201721812751 U CN201721812751 U CN 201721812751U CN 207738686 U CN207738686 U CN 207738686U
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Abstract
The utility model is related to a kind of one-way heating system of external-heat low order fine coal continuous shale oven, combustion chamber is set at the top of flue and coupled logical upper horizontal road, set on flue bottom and coupled logical lower horizontal road composition by multiple flues；The bottom of each flue is equipped with coal gas burner, and coal gas burner connects one end of gas pipe, and the other end of gas pipe is connect after being passed down through lower horizontal road and sole plate with external coal gas steam line；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 the heating load of each flue, grow uniformity to heating to improve carbonization chamber, while the 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 one-way 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 one-way heating system of external-heat low order fine coal continuous shale oven, can individually adjust
The heating load of each flue grows uniformity to heating to improve carbonization chamber；Simultaneously by adjusting exchange cycle twice
Time 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 one-way 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 bottom of each flue is equipped with coal gas burner, and coal gas burner connects one end of gas pipe, the other end of gas pipe
It is connect with external coal gas steam line after being passed down through lower horizontal road and sole plate, gas pipe can be in furnace expansion therewith
Translation；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；Lower water
One end of level line is connected to the bottom of lower regenerative chamber, and regenerative chamber gas passage is set on the outside of lower regenerative chamber.
Regulating cock or regulating valve are set on the gas pipe stretched out except sole plate.
The heat storage is checker brick or heat exchanger.
Trepanning coal supply tracheae passes through the sole plate respectively with lower horizontal road bottom, and gas pipe is opened with lower horizontal road bottom
Gap between hole is sealed by sealing cord, and the hole opened up on sole plate is the elongated hole along furnace expansion direction.
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 gas pipe, each flue heating load can be adjusted, from
And it realizes carbonization chamber and 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 one-way 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. sealing cord in horizontal road under horizontal road 9. on plug or 6. gas pipe of regulating valve, 7. sole plate 8.
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 one-way 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；As shown in Fig. 2, the bottom of each flue 10
It is equipped with coal gas burner 11, coal gas burner 11 connects one end of gas pipe 6, and the other end of gas pipe 6 is passed down through lower horizontal road 9
And connect with external coal gas steam line after sole plate 7, gas pipe 6 can therewith be translated in furnace expansion；Upper horizontal road 8
One end be connected to the top of upper regenerative chamber 2, the outside of upper regenerative chamber 2 sets regenerative chamber gas passage 1；The one of lower horizontal road 9
End is connected to the bottom of lower regenerative chamber 4, and regenerative chamber gas passage 3 is set in the outside of lower regenerative chamber 4.
Regulating cock or regulating valve 5 are set on the gas pipe 6 stretched out except sole plate 7.
The heat storage is checker brick or heat exchanger.
Trepanning coal supply tracheae 6 passes through the sole plate 7 respectively with lower 9 bottom of horizontal road, gas pipe 6 and lower horizontal road 9
Gap between bottom opening is sealed by sealing cord 12, and the hole opened up on sole plate 7 is along the elongated of furnace expansion direction
Hole.
The heating means of external-heat low order fine coal continuous shale oven based on one-way 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；Gas pipe 6 is passed through heating gas, the sky after preheating
Gas burns with heating gas at coal gas burner 11, flue 10 of the flame generated after burning above each coal gas burner 11
It is inside elongated, the hot waste gas after burning enters upper regenerative chamber 2 after collecting by upper horizontal road 8, the accumulation of heat in heating in regenerative chamber 2
Body, the exhaust gas after heat exchange are discharged from upper regenerative chamber gas passage 1, are arranged eventually by 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, is not fed in gas pipe 6 at this time
Coal gas, hot-air are flowed downward by each flue 10, continue to increase and import down by the hot air temperature of flue 10
Horizontal road 8, then lower regenerative chamber 4 is entered by lower horizontal road 8, heat the heat storage in lower regenerative chamber 4；Air after heat exchange is by lower storage
Hot cell gas passage 3 is discharged, and is 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 gas pipe 6 can be individually adjusted by regulating cock or regulating valve 5, it is each vertical to adjust
The heating load of quirk 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.
It, can be on lower 9 bottom of horizontal road and sole plate 7 when heating system is installed or existing gas retort heating system is transformed
Trepanning is stretched into gas pipe 6 in the corresponding flue in top 10 by the tapping of sole plate 7 and lower 9 bottom of horizontal road, coal
Tracheae 6 is not fixed with coke dry quenching furnace foundation structure, ensures that gas pipe can translate together when furnace expansion, open up on sole plate 7
Hole be elongated hole along gas pipe translation direction.
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 one-way 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 bottom of each flue is equipped with coal gas burner, and coal gas burner connects one end of gas pipe, coal gas
The other end of pipe is connect after being passed down through lower horizontal road and sole plate with external coal gas steam line, and gas pipe can be in furnace body
It is translated therewith when expansion；The one end in upper horizontal road is connected to the top of upper regenerative chamber, and regenerative chamber gas is set on the outside of upper regenerative chamber
Body channel；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.
2. the one-way heating system of external-heat low order fine coal continuous shale oven according to claim 1, which is characterized in that stretch
Go out on the gas pipe except sole plate to set regulating cock or regulating valve.
3. the one-way 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 one-way 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 coal supply tracheae passes through respectively with lower horizontal road bottom, the seam between gas pipe and lower horizontal road bottom opening
Gap is sealed by sealing cord, and the hole opened up on sole plate is the elongated hole along furnace expansion direction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721812751.9U CN207738686U (en) | 2017-12-22 | 2017-12-22 | The one-way heating system of external-heat low order fine coal continuous shale oven |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721812751.9U CN207738686U (en) | 2017-12-22 | 2017-12-22 | The one-way heating system of external-heat low order fine coal continuous shale oven |
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| CN207738686U true CN207738686U (en) | 2018-08-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107841318A (en) * | 2017-12-22 | 2018-03-27 | 中冶焦耐(大连)工程技术有限公司 | The one-way heating system and heating means of external-heat low order fine coal continuous shale oven |
-
2017
- 2017-12-22 CN CN201721812751.9U patent/CN207738686U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107841318A (en) * | 2017-12-22 | 2018-03-27 | 中冶焦耐(大连)工程技术有限公司 | The one-way heating system and heating means of external-heat low order fine coal continuous shale oven |
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