CN214332715U - Double-combustion-chamber steam generation system for sludge advanced treatment process - Google Patents
Double-combustion-chamber steam generation system for sludge advanced treatment process Download PDFInfo
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- CN214332715U CN214332715U CN202120431594.7U CN202120431594U CN214332715U CN 214332715 U CN214332715 U CN 214332715U CN 202120431594 U CN202120431594 U CN 202120431594U CN 214332715 U CN214332715 U CN 214332715U
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Abstract
The utility model relates to a two combustion chamber steam generation systems for mud advanced treatment process, burn burning furnace and exhaust-heat boiler including two combustion chambers, two combustion chambers burn burning furnace and include pyrolysis gas combustion chamber and natural gas combustion chamber, pyrolysis gas combustion chamber is furnished with a pyrolysis gas combustor, natural gas combustion chamber is furnished with a natural gas combustor, a pyrolysis gas combustion chamber and natural gas combustion chamber share a hot flue gas conveyer pipe, hot flue gas conveyer pipe is connected to exhaust-heat boiler, one side of pyrolysis gas combustion chamber is provided with a fan, a fan provides the required oxygen of burning for pyrolysis gas, one side of exhaust-heat boiler is provided with the water source and provides the device. The method can simplify the process flow, save the equipment investment and reduce the occupied area.
Description
Technical Field
The application relates to the technical field of sludge treatment, in particular to a double-combustion-chamber steam generation system for a sludge advanced treatment process.
Background
At present, steam is often used as a heat source in a sludge advanced treatment process, and pyrolysis gas generated in a pyrolysis section can be used as fuel of a steam generation system, so that the sludge advanced treatment process usually adopts a process of combining a waste heat boiler with an incinerator and a natural gas boiler, namely, the waste heat boiler with the incinerator and the natural gas boiler with natural gas as fuel are arranged.
The incinerator uses pyrolysis gas as fuel, hot flue gas after combustion is sent to a waste heat boiler, steam generated by the waste heat boiler is sent to a steam distributing cylinder, a natural gas boiler uses natural gas as fuel, the generated steam is sent to the steam distributing cylinder, the steam distributing cylinder sends the steam to each steam using point, and a condenser of the natural gas boiler is also provided with two circulating water pumps.
Therefore, in the prior related technical scheme, the process of combining the waste heat boiler with the incinerator and the natural gas boiler in the sludge advanced treatment process is complex, the number of equipment is large, the equipment maintenance amount is large, the control process between the two sets of boiler systems and the pressure fed back by the steam distributing cylinder is complex, and safety accidents are easy to occur.
SUMMERY OF THE UTILITY MODEL
In order to simplify the process flow, save equipment investment and reduce the occupied area, the application provides a double-combustion-chamber steam generation system for a sludge advanced treatment process.
The application provides a two combustion chamber steam generation systems for advanced sludge treatment process adopts following technical scheme:
the utility model provides a two combustion chamber steam generation system for mud advanced treatment process, burns burning furnace and exhaust-heat boiler including two combustion chambers, two combustion chambers burn burning furnace and include pyrolysis gas combustion chamber and natural gas combustion chamber, pyrolysis gas combustion chamber is furnished with a pyrolysis gas combustor, natural gas combustion chamber is furnished with a natural gas combustor, a pyrolysis gas combustion chamber and a natural gas combustion chamber sharing hot flue gas conveyer pipe, hot flue gas conveyer pipe connection to exhaust-heat boiler, one side of pyrolysis gas combustion chamber is provided with the once-air machine, the once-air machine provides the required oxygen of burning for pyrolysis gas, one side of exhaust-heat boiler is provided with the water source and provides the device.
Through adopting above-mentioned technical scheme, unite two into one pyrolysis gas combustion chamber and natural gas combustion chamber, set up in a double combustion chamber incinerator jointly, simplified process flow, saved equipment investment, reduced area, pyrolysis gas combustion chamber and natural gas combustion chamber share a hot flue gas conveyer pipe simultaneously, carry hot flue gas to exhaust-heat boiler in, system control is simple, safety, has guaranteed steam steady supply and system steady operation.
Optionally: a partition wall is arranged in the double-combustion-chamber incinerator and separates the pyrolysis gas combustion chamber from the natural gas combustion chamber.
Through adopting above-mentioned technical scheme, adopt the partition wall, separate pyrolysis gas combustion chamber and natural gas combustion chamber, guarantee that pyrolysis gas and natural gas can not take place to scurry in disorder each other.
Optionally: the pyrolysis gas combustion chamber is provided with a standby pyrolysis gas burner.
Through adopting above-mentioned technical scheme, the setting of reserve pyrolysis gas combustor can guarantee to have long open fire source in the pyrolysis gas combustion chamber all the time to prevent pyrolysis gas flame-out when pyrolysis gas combustion chamber furnace temperature is lower.
Optionally: the waste heat boiler is characterized in that a smoke outlet of the waste heat boiler is provided with a smoke outlet pipe, one end, far away from the waste heat boiler, of the smoke outlet pipe is connected with a three-way pipe, one end of the three-way pipe is connected with a smoke returning pipe, one end, far away from the three-way pipe, of the smoke returning pipe is connected into the double-combustion-chamber incinerator, and the other end of the three-way pipe is connected with a smoke discharging pipe.
By adopting the technical scheme, one part of the flue gas discharged from the waste heat boiler returns to the double-combustion-chamber incinerator through the smoke return pipe to recover heat, and the other part of the flue gas is discharged through the smoke discharge pipe.
Optionally: and one end of the smoke exhaust pipe, which is far away from the three-way pipe, is connected with a dust collector, and the dust collector collects dust and then sends the dust to a smoke treatment system.
By adopting the technical scheme, the dust collector carries out dust collection treatment on the smoke exhausted by the smoke exhaust pipe, the smoke subjected to dust collection treatment is sent to the smoke treatment system for treatment, and the treated smoke can be discharged after reaching the standard, so that the atmosphere is not polluted when the smoke is discharged.
Optionally: the dust collector comprises a dust collection box body, a bag-type dust collector is arranged inside the dust collection box body, the inlet end of the dust collection box body is connected with a smoke exhaust pipe, and the outlet end of the dust collection box body is connected with a smoke treatment system.
By adopting the technical scheme, on the flue gas entered into the bag-type dust remover in the dust removal box body from the inlet end of the dust removal box body, the flue gas was subjected to dust collection treatment by the bag-type dust remover, the flue gas after the dust collection treatment was discharged from the outlet end of the dust removal box body, and the bag-type dust remover is convenient to install and can be recycled.
Optionally: the upper end opening of the dust removal box body is arranged, the opening position of the upper end of the dust removal box body is hinged with a cover plate, and the bag-type dust remover is vertically placed in the dust removal box body.
Through adopting above-mentioned technical scheme, the opening setting of dust removal box upper end is convenient for clear up the sack cleaner in the dust removal box, also is convenient for install or dismantle simultaneously, and the setting of apron can be sealed the upper end open position department of dust removal box.
Optionally: and the smoke returning pipe is provided with a circulating fan.
By adopting the technical scheme, the circulating fan is arranged so as to introduce part of flue gas in the three-way pipe into the double-combustion-chamber incinerator.
Optionally: the water source providing device comprises a soft water treatment device communicated with a tap water pipe, a soft water tank connected with the soft water treatment device and a water feeding pump which is connected with the soft water tank and pumps softened water in the soft water tank into the waste heat boiler.
By adopting the technical scheme, the water softening device is used for softening the tap water in the tap water pipe, calcium and magnesium ions in the tap water are removed, the treated softened water is stored through the soft water tank, and the softened water is pumped by the water pump when in use.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the pyrolysis gas combustion chamber and the natural gas combustion chamber are combined into a whole and are arranged in the double-combustion-chamber incinerator together, so that the process flow is simplified, the equipment investment is saved, and the occupied area is reduced;
2. the dust collector is used for carrying out dust collection treatment on smoke exhausted by the smoke exhaust pipe, the smoke subjected to dust collection treatment is sent to a smoke treatment system for treatment, and the treated smoke can be discharged after reaching the standard, so that the atmosphere is not polluted when the smoke is discharged.
Drawings
FIG. 1 is a schematic diagram of a dual combustion chamber steam generation system for sludge advanced treatment process according to an embodiment of the present application;
FIG. 2 is a schematic top view showing the internal structure of a dual combustion chamber incinerator in the embodiment of the present application
FIG. 3 is a transverse sectional view of the dust removing box body in the embodiment of the present application.
In the figure, 1, a double-combustion chamber incinerator; 11. a pyrolysis gas combustion chamber; 111. a pyrolysis gas burner; 112. a standby pyrolysis gas burner; 12. a natural gas combustor; 121. a natural gas burner; 13. a partition wall; 2. a waste heat boiler; 21. discharging the smoke tube; 3. a primary air fan; 4. a hot flue gas conveying pipe; 5. a cylinder is divided; 61. a water softening treatment device; 62. a soft water tank; 63. a feed pump; 631. a water inlet pipe; 632. a water outlet pipe; 7. a three-way pipe; 71. returning the smoke pipe; 711. a circulating fan; 72. a smoke exhaust pipe; 8. a dust remover; 81. a dust removal box body; 811. an inlet end; 812. an outlet end; 813. a cover plate; 82. a dust collecting hopper; 9. a bag-type dust collector.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
The embodiment of the application discloses a double-combustion-chamber steam generation system for a sludge advanced treatment process.
Referring to fig. 1, fig. 2, including two combustion chambers burn burning furnace 1 and exhaust-heat boiler 2, including pyrolysis gas combustion chamber 11 and natural gas combustion chamber 12 in two combustion chambers burn burning furnace 1, set firmly partition wall 13 between pyrolysis gas combustion chamber 11 and natural gas combustion chamber 12, partition wall 13 is vertical to be set up, and the upper end of partition wall 13 sets up with the interval between the interior roof of two combustion chambers burn burning furnace 1.
The pyrolysis gas combustion chamber 11 is internally provided with a pyrolysis gas combustor 111 and a standby pyrolysis gas combustor 112, the pyrolysis gas combustor 111 and the standby pyrolysis gas combustor 112 are arranged at intervals up and down, pyrolysis gas is introduced into the pyrolysis gas combustor 111 for combustion, natural gas is introduced into the standby natural gas combustor 112 for combustion, and the standby pyrolysis gas combustor 112 can ensure that a long-term open fire source is always present in the pyrolysis gas combustion chamber 11 to prevent the pyrolysis gas from being broken when the temperature of a hearth of the pyrolysis gas combustion chamber 11 is lower.
A primary air fan 3 is arranged on the outer side of the double-combustion-chamber incinerator 1, an air outlet of the primary air fan 3 is connected with the pyrolysis gas combustor 111, and the primary air fan 3 provides oxygen required by combustion for the pyrolysis gas.
Referring to fig. 1 and 2, a natural gas burner 121 is arranged in the natural gas combustion chamber 12, the natural gas burner 121 is vertically arranged and parallel to the partition wall 13, and the natural gas burner 121 and the standby pyrolysis gas burner 112 share the same natural gas conveying pipe.
Referring to fig. 1, exhaust-heat boiler 2 sets up in the one side that burning furnace 1 deviates from primary air fan 3 is burnt to two combustors, the lateral wall of exhaust-heat boiler 2 upper end has been seted up into the mouth, the lateral wall of burning furnace 1 upper end is burnt to two combustors has been seted up the exhaust port, the exhaust port sets up with advancing the mouth relatively, be provided with hot flue gas conveyer pipe 4 between exhaust port and the inlet port, the one end of hot flue gas conveyer pipe 4 and the exhaust port fixed connection that two combustors burnt furnace 1, the other end of hot flue gas conveyer pipe 4 and exhaust-heat boiler 2 advance mouth fixed connection.
The hot flue gas after combustion in the pyrolysis gas combustion chamber 11 and the natural gas combustion chamber 12 is collected in the hot flue gas conveying pipe 4 and then conveyed into the waste heat boiler 2. The top of the waste heat boiler 2 is provided with a steam distributing cylinder 5.
Referring to fig. 1, the exhaust heat boiler 2 is provided with a water source supply device including a water softener 61, a water softener tank 62, and a water feed pump 63, the water softener 61, the water softener tank 62, and the water feed pump 63 are arranged in series, an external water pipe is connected to the water softener 61, and the water softener 61 treats water in the water pipe and then feeds the water into the water softener tank 62 for storage. The number of the water feed pumps 63 is two, the two water feed pumps 63 are arranged in parallel, a water inlet pipe 631 is connected between a water inlet of the water feed pump 63 and the side wall of the lower end of the soft water tank 62, and a water outlet pipe 632 is connected between a water outlet of the water feed pump 63 and the side wall of the lower end of the exhaust heat boiler 2. The water feeding pump 63 sends the softened water treated in the soft water tank 62 into the waste heat boiler 2 and exchanges heat with hot flue gas, hot steam generated after heat exchange is sent into the steam distributing cylinder 5, and the hot steam is sent to each steam using point through the steam distributing cylinder 5.
Referring to fig. 1, a smoke outlet is formed in the side wall of the lower end of the exhaust-heat boiler 2, a smoke outlet pipe 21 is fixedly connected to the position of the smoke outlet, a three-way pipe 7 is connected to one end of the smoke outlet pipe 21, which is far away from the exhaust-heat boiler 2, a smoke return pipe 71 is connected to one end of the three-way pipe 7, one end of the smoke return pipe 71, which is far away from the three-way pipe 7, is connected to the interior of the dual-combustion chamber incinerator 1, and a circulating fan 711 is installed on the smoke return pipe 71. The other end of the three-way pipe 7 is connected with a smoke exhaust pipe 72.
Referring to fig. 1, the flue gas after heat exchange in the exhaust-heat boiler 2 is discharged from the flue gas outlet and enters the flue gas outlet pipe 21, the flue gas is divided by the three-way pipe 7, a part of the flue gas returns to the dual combustion chamber incinerator 1 through the smoke return pipe 71 for heat recovery, and the other part of the flue gas is discharged through the smoke discharge pipe 72.
Referring to fig. 1 and 3, a dust collector 8 is connected to one end of the smoke exhaust pipe 72, which is far away from the three-way pipe 7, the dust collector 8 collects dust from smoke exhausted from the smoke exhaust pipe 72, and the smoke collected by the dust collector 8 is sent to a smoke treatment system.
Referring to fig. 1 and 3, the dust collector 8 includes a dust collection box 81, the dust collection box 81 is a hollow rectangular cavity, an inlet end 811 is arranged at one end of the dust collection box 81 close to the smoke exhaust pipe 72, and the inlet end 811 is connected with one end of the smoke exhaust pipe 72 far away from the three-way pipe 7. An outlet end 812 is arranged at one end of the dedusting box 81 opposite to the inlet end 811, and the flue gas from the outlet end 812 is sent to a flue gas treatment system.
Referring to fig. 3, a plurality of bag-type dust collectors 9 are disposed inside the dust-removing box 81, the bag-type dust collectors 9 are arranged at equal intervals along a straight line between an inlet end 811 and an outlet end 812 of the dust-removing box 81, and the bag-type dust collectors 9 are disposed vertically. The flue gas entering the dust removal box 81 is subjected to dust collection treatment by the bag-type dust collector 9.
Referring to fig. 1 and 3, an opening is formed in the upper end of the dust removing box 81, a cover plate 813 is hinged to the opening of the upper end of the dust removing box 81, and the bag-type dust remover 9 in the dust removing box 81 can be cleaned or mounted conveniently by opening the cover plate 813.
The lower end of the dust removal box body 81 is connected with a dust hopper 82, the dust hopper 82 is vertically arranged, the cross-sectional area of the upper end of the dust hopper 82 is larger than that of the lower end, the upper end of the dust hopper 82 is connected with the lower end of the dust removal box body 81, a discharging pipe is fixedly arranged at the lower end of the dust hopper 82, and a control hand valve is arranged on the discharging pipe.
The implementation principle of the embodiment is as follows: hot flue gas generated by combustion in the pyrolysis gas combustion chamber 11 and the natural gas combustion chamber 12 is gathered in the hot flue gas conveying pipe 4 and enters the waste heat boiler 2, steam generated by the waste heat boiler 2 is sent to the branch cylinder 5, the steam is sent to each steam using point through the branch cylinder 5, in order to recover heat, a part of flue gas discharged by the waste heat boiler 2 returns to the double-combustion-chamber incinerator 1 through the smoke return pipe 71, a part of flue gas enters the dust removal box 81 through the inlet end 811 of the dust removal box 81, the flue gas is subjected to dust collection treatment through the bag-type dust collector 9, and the treated flue gas is sent out from the outlet end 812 of the dust removal box 81 and enters a flue gas treatment system in the next process.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. A double-combustion-chamber steam generation system for a sludge advanced treatment process is characterized in that: burn burning furnace (1) and exhaust-heat boiler (2) including two combustion chambers, two combustion chambers burn burning furnace (1) and include pyrolysis gas combustion chamber (11) and natural gas combustion chamber (12), pyrolysis gas combustion chamber (11) are furnished with a pyrolysis gas combustor (111), natural gas combustion chamber (12) are furnished with a natural gas combustor (121), a hot flue gas conveyer pipe (4) of pyrolysis gas combustion chamber (11) and natural gas combustion chamber (12) sharing, hot flue gas conveyer pipe (4) are connected to exhaust-heat boiler (2), one side of pyrolysis gas combustion chamber (11) is provided with fan (3), fan (3) provide the required oxygen of burning for pyrolysis gas, one side of exhaust-heat boiler (2) is provided with the water source providing device.
2. The dual combustion chamber steam generation system for sludge advanced treatment process as claimed in claim 1, wherein: a partition wall (13) is arranged in the double-combustion-chamber incinerator (1), and the pyrolysis gas combustion chamber (11) and the natural gas combustion chamber (12) are separated by the partition wall (13).
3. The dual combustion chamber steam generation system for sludge advanced treatment process as claimed in claim 2, wherein: the pyrolysis gas combustion chamber (11) is provided with a standby pyrolysis gas burner (112).
4. The dual combustion chamber steam generation system for sludge advanced treatment process as claimed in claim 1, wherein: the waste heat boiler is characterized in that a smoke outlet of the waste heat boiler (2) is provided with a smoke outlet pipe (21), one end, far away from the waste heat boiler (2), of the smoke outlet pipe (21) is connected with a three-way pipe (7), one end of the three-way pipe (7) is connected with a smoke returning pipe (71), one end, far away from the three-way pipe (7), of the smoke returning pipe (71) is connected into the double-combustion-chamber incinerator (1), and the other end of the three-way pipe (7) is connected with a smoke discharging pipe (72).
5. The dual combustion chamber steam generation system for sludge advanced treatment process as claimed in claim 4, wherein: one end of the smoke exhaust pipe (72) far away from the three-way pipe (7) is connected with a dust collector (8), and the dust collector (8) collects dust and then sends the dust to a smoke treatment system.
6. The dual combustion chamber steam generation system for sludge advanced treatment process as claimed in claim 5, wherein: the dust collector (8) comprises a dust collection box body (81), a bag-type dust collector (9) is arranged inside the dust collection box body (81), an inlet end (811) of the dust collection box body (81) is connected with a smoke exhaust pipe (72), and an outlet end (812) of the dust collection box body (81) is connected with a smoke treatment system.
7. The dual combustion chamber steam generation system for sludge advanced treatment process as claimed in claim 6, wherein: the upper end opening of dust removal box (81) sets up, dust removal box (81) are articulated in the open position department of its upper end have apron (813), bag-type dust remover (9) are vertical to be placed in dust removal box (81).
8. The dual combustion chamber steam generation system for sludge advanced treatment process as claimed in claim 4, wherein: and a circulating fan (711) is arranged on the smoke return pipe (71).
9. The dual combustion chamber steam generation system for sludge advanced treatment process as claimed in claim 1, wherein: the water source supply device comprises a soft water processor (61) communicated with a tap water pipe, a soft water tank (62) connected with the soft water processor (61), and a water feeding pump (63) which is connected with the soft water tank (62) and pumps softened water in the soft water tank (62) into the waste heat boiler (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120431594.7U CN214332715U (en) | 2021-02-27 | 2021-02-27 | Double-combustion-chamber steam generation system for sludge advanced treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120431594.7U CN214332715U (en) | 2021-02-27 | 2021-02-27 | Double-combustion-chamber steam generation system for sludge advanced treatment process |
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| Publication Number | Publication Date |
|---|---|
| CN214332715U true CN214332715U (en) | 2021-10-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120431594.7U Active CN214332715U (en) | 2021-02-27 | 2021-02-27 | Double-combustion-chamber steam generation system for sludge advanced treatment process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214332715U (en) |
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2021
- 2021-02-27 CN CN202120431594.7U patent/CN214332715U/en active Active
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