CN213630504U - Flue gas waste heat recovery system of blast furnace gas boiler - Google Patents
Flue gas waste heat recovery system of blast furnace gas boiler Download PDFInfo
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- CN213630504U CN213630504U CN202022269430.7U CN202022269430U CN213630504U CN 213630504 U CN213630504 U CN 213630504U CN 202022269430 U CN202022269430 U CN 202022269430U CN 213630504 U CN213630504 U CN 213630504U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model discloses a blast furnace gas boiler flue gas waste heat recovery system, include: the system comprises a combustion furnace, a transportation frame and an air preheating furnace, wherein the transportation frame is inserted in the combustion furnace, the air preheating furnace is connected to the combustion furnace, the transportation frame is arranged on a transportation structure, and waste heat recovery structures are arranged on the combustion furnace, the transportation frame and the air preheating furnace; the utility model relates to a gas boiler waste heat recovery technical field preheats air and coal through the marriage gas with gas boiler to reach the heat that needs in the air when reducing the coal burning, thereby reach and reduce thermal velocity of flow in the smog, through heating combustion air to temperature range from 50 ℃ to 250 ℃, thereby reach the effect that reduces the thermal velocity of flow.
Description
Technical Field
The utility model relates to a gas boiler waste heat recovery technical field specifically is a blast furnace gas boiler flue gas waste heat recovery system.
Background
In a production workshop of a factory, a boiler is often required to heat raw materials, when the boiler heats the raw materials, fuel in the boiler is combusted to generate a large amount of smoke to be discharged outdoors, on one hand, the smoke takes away a large amount of heat, on the other hand, the smoke takes away a large amount of dust, the dust causes serious pollution to the outdoor environment and damages the health of surrounding personnel.
SUMMERY OF THE UTILITY MODEL
The utility model provides a blast furnace gas boiler flue gas waste heat recovery system, to the not enough of prior art, has solved current partial background technical problem.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a blast furnace gas boiler flue gas waste heat recovery system includes: the system comprises a combustion furnace, a transportation frame and an air preheating furnace, wherein the transportation frame is inserted in the combustion furnace, the air preheating furnace is connected to the combustion furnace, the transportation frame is arranged on a transportation structure, and waste heat recovery structures are arranged on the combustion furnace, the transportation frame and the air preheating furnace;
the transportation structure comprises: the conveying device comprises a conveying inner box, a conveying outer box, a conveying driving shaft, a conveying driving machine, a plurality of conveying transmission shafts with the same structure, a plurality of conveying transmission gears with the same structure, a conveying chain, a plurality of conveying rollers with the same structure and a conveying belt;
the inner transportation box is arranged on the inner side of the transportation frame, the outer transportation box is arranged on the outer side of the transportation frame, the transportation driving shaft is movably inserted in the inner transportation box and the outer transportation box through a bearing, the transportation driving machine is arranged on the outer transportation box, the driving end of the transport driving machine is connected to a transport driving shaft, a plurality of transport transmission shafts are movably inserted on the transport inner box through bearings, a plurality of transport transmission gears are respectively arranged on the transport transmission shafts and the transport driving shaft, and a plurality of the transport transmission gears are positioned between the transport inner box and the transport outer box, the conveying chain is sleeved on the plurality of conveying transmission gears, the plurality of conveying rollers are respectively arranged on the plurality of conveying transmission shafts and the conveying driving shafts, and the conveying belt is sleeved on the plurality of conveying rollers.
Preferably, the waste heat recovery structure includes: a pair of guide pipes, a coil pipe, an air guide fan, an S-shaped guide pipe and a sealing shutter which have the same structure;
the air preheating furnace is characterized in that the sealing shutter is installed at the bottom end of the air preheating furnace, the air guide fan is installed on the sealing shutter, the coil pipe is installed in the air preheating furnace in a coiling mode, the pair of guide pipes are respectively inserted between the coil pipe and the inner and outer transport boxes, the S-shaped guide pipe is installed at the top end of the air preheating furnace, and the other end of the S-shaped guide pipe is connected to the bottom end of the combustion furnace.
Preferably, the air preheating furnace, the combustion furnace, the inner transportation box and the outer transportation box are provided with heat insulation paint on the outer sides.
Preferably, the bottom ends of the inner and outer transport boxes form an angle of 30 ° with the ground.
Preferably, the inner transportation box and the outer transportation box are provided with a collecting pipe in a plug-in manner.
Preferably, the conveyor belt is provided with gathering strips.
Advantageous effects
The utility model provides a blast furnace gas boiler flue gas waste heat recovery system. The method has the following beneficial effects: this blast furnace gas boiler glue gas waste heat recovery system preheats air and coal through the glue gas with gas boiler to reach the heat that needs in the air when reducing the coal burning, thereby reach and reduce thermal velocity of flow in the smog, through heating combustion-supporting air to temperature range from 50 ℃ to 250 ℃, thereby reach the effect that reduces the heat velocity of flow.
Drawings
Fig. 1 is a schematic sectional view of a blast furnace gas boiler flue gas waste heat recovery system according to the present invention.
Fig. 2 is the schematic view of the transportation structure of the flue gas waste heat recovery system of the blast furnace gas boiler of the present invention.
Fig. 3 is the schematic view of the waste heat recovery structure of the flue gas waste heat recovery system of the blast furnace gas boiler of the present invention.
In the figure: 1-a combustion furnace; 2-a transportation frame; 3-air preheating furnace; 4-transporting the inner box; 5-transporting the outer box; 6-transport drive shaft; 7-a transport drive; 8-transporting the transmission shaft; 9-transport transmission gear; 10-a transport chain; 11-a transport drum; 12-a conveyor belt; 13-a guide tube; 14-a coiled tube; 15-air guiding fan; a 16-S shaped guide tube; 17-sealing the louver.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
All the electrical components in the present application are connected with the power supply adapted to the electrical components through a wire, and an appropriate controller and an appropriate encoder should be selected according to actual conditions to meet control requirements, and specific connection and control sequences should be obtained.
Example (b): according to the attached drawings 1-3, the transportation frame 2 is inserted in the combustion furnace 1, the air preheating furnace 3 is connected to the combustion furnace 1, the transportation frame 2 is arranged in the transportation structure, and the combustion furnace 1, the transportation frame 2 and the air preheating furnace 3 are provided with waste heat recovery structures; the transportation structure comprises: the conveying device comprises a conveying inner box 4, a conveying outer box 5, a conveying driving shaft 6, a conveying driving machine 7, a plurality of conveying transmission shafts 8 with the same structure, a plurality of conveying transmission gears 9 with the same structure, a conveying chain 10, a plurality of conveying rollers 11 with the same structure and a conveying belt 12; the transportation inner box 4 is arranged on the inner side of the transportation frame 2, the transportation outer box 5 is arranged on the outer side of the transportation frame 2, the transportation driving shaft 6 is movably inserted on the transportation inner box 4 and the transportation outer box 5 through a bearing, the transportation driving machine 7 is arranged on the transportation outer box 5, the driving end of the transportation driving machine 7 is connected on the transportation driving shaft 6, a plurality of transportation driving shafts 8 are movably inserted on the transportation inner box 4 through bearings, a plurality of transportation driving gears 9 are respectively arranged on the transportation driving shafts 8 and the transportation driving shaft 6, the transportation driving gears 9 are positioned between the transportation inner box 4 and the transportation outer box 5, the transportation chain 10 is sleeved on the transportation driving gears 9, a plurality of transportation rollers 11 are respectively arranged on the transportation driving shafts 8 and the transportation driving shaft 6, the conveying belt 12 is sleeved on the plurality of conveying rollers 11; the waste heat recovery structure comprises: a pair of guide pipes 13, a coil pipe 14, an air guide fan 15, an S-shaped guide pipe 16, and a sealing louver 17, which have the same structure; the sealing shutter 17 is installed on the bottom end of the air preheating furnace 3, the air guide fan 15 is installed on the sealing shutter 17, the coil pipe 14 is coiled and installed in the air preheating furnace 3, the pair of guide pipes 13 are respectively inserted between the coil pipe 14 and the transport inner box 4 and the transport outer box 5, the S-shaped guide pipe 16 is installed on the top end of the air preheating furnace 3, and the other end of the S-shaped guide pipe 16 is connected to the bottom end of the combustion furnace 1; the outer sides of the air preheating furnace 3, the combustion furnace 1, the transportation inner box 4 and the transportation outer box 5 are provided with heat insulation paint; the bottom ends of the inner transportation box 4 and the outer transportation box 5 form an angle of 30 degrees on the ground; the inner transportation box 4 and the outer transportation box 5 are provided with a collecting pipe in an inserted manner; the conveyor belt 12 is provided with gathering strips.
From the above, it follows: the transportation driving machine 7 is operated, the transportation driving shaft 6 on the driving end is driven to rotate by the transportation driving machine 7, the transportation driving gear 9 on the transportation driving shaft 6 is driven to rotate by the transportation driving gear 9, the transportation chain 10 on the transportation driving gear is driven to rotate by the transportation chain 10, the transportation driving gears 8 on the transportation driving gear are respectively driven to rotate by the transportation driving gear 9, the transportation rollers 11 on the transportation driving shaft are respectively driven by the transportation driving shaft 8 and the transportation driving shaft 6, the transportation belt 12 on the transportation rollers 11 is driven by the transportation belt 12, the coal on the transportation belt 12 is driven to the combustion furnace 1 by the transportation driving gear 12, the coal in the combustion furnace 1 is combusted, the smoke after combustion is guided to the coiling pipe 14 and between the transportation inner box 4 and the transportation outer box 5 by the pair of guide pipes 13 on the combustion furnace 1, heat is transferred to the coiling pipe 14 and the inner transportation box 4 through smoke, the heat is transferred to air in the air preheating furnace 3 through the coiling pipe 14, the heat is transferred to coal in the inner transportation box 4 through the inner transportation box 4, the air and the coal are preheated, so that the heat consumed by low-temperature air combustion during combustion is reduced, and the temperature range of combustion air in the air is from 50 ℃ to 250 ℃, so that the heat consumed by air combustion is reduced.
Preferably, the waste heat recovery structure further includes: a pair of guide pipes 13, a coil pipe 14, an air guide fan 15, an S-shaped guide pipe 16, and a sealing louver 17, which have the same structure;
the sealing shutter 17 is installed on the bottom end of the air preheating furnace 3, the air guide fan 15 is installed on the sealing shutter 17, the coil pipe 14 is installed in the air preheating furnace 3 in a coiling manner, the pair of guide pipes 13 are respectively inserted between the coil pipe 14 and the transport inner box 4 and the transport outer box 5, the S-shaped guide pipe 16 is installed on the top end of the air preheating furnace 3, and the other end of the S-shaped guide pipe 16 is connected to the bottom end of the combustion furnace 1.
Preferably, the air preheating furnace 3, the combustion furnace 1, the inner transport box 4 and the outer transport box 5 are provided with heat insulating paint on the outer sides.
Preferably, the bottom ends of the inner transportation box 4 and the outer transportation box 5 are at an angle of 30 ° with respect to the ground.
Preferably, the inner transport box 4 and the outer transport box 5 are provided with a header pipe in an inserted manner.
Preferably, the conveyer belt 12 is provided with gathering strips.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A blast furnace gas boiler flue gas waste heat recovery system includes: the device comprises a combustion furnace (1), a transportation frame (2) and an air preheating furnace (3), and is characterized in that the transportation frame (2) is inserted in the combustion furnace (1), the air preheating furnace (3) is connected to the combustion furnace (1), the transportation frame (2) is installed in a transportation structure, and waste heat recovery structures are installed on the combustion furnace (1), the transportation frame (2) and the air preheating furnace (3);
the transportation structure comprises: the conveying device comprises a conveying inner box (4), a conveying outer box (5), a conveying driving shaft (6), a conveying driving machine (7), a plurality of conveying transmission shafts (8) with the same structure, a plurality of conveying transmission gears (9) with the same structure, a conveying chain (10), a plurality of conveying rollers (11) with the same structure and a conveying belt (12);
the transportation inner box (4) is arranged on the inner side of the transportation frame (2), the transportation outer box (5) is arranged on the outer side of the transportation frame (2), the transportation driving shaft (6) is movably inserted on the transportation inner box (4) and the transportation outer box (5) through a bearing, the transportation driving machine (7) is arranged on the transportation outer box (5), the driving end of the transportation driving machine (7) is connected on the transportation driving shaft (6), a plurality of the transportation driving shaft (8) is movably inserted on the transportation inner box (4) through a bearing, a plurality of the transportation driving gears (9) are respectively arranged on the transportation driving shaft (8) and the transportation driving shaft (6), and a plurality of the transportation driving gears (9) are positioned between the transportation inner box (4) and the transportation outer box (5), and the transportation chain (10) is sleeved on the transportation driving gears (9), the conveying rollers (11) are respectively arranged on the conveying transmission shafts (8) and the conveying driving shaft (6), and the conveying belts (12) are sleeved on the conveying rollers (11).
2. The blast furnace gas boiler flue gas waste heat recovery system of claim 1, wherein the waste heat recovery structure comprises: a pair of guide pipes (13), a coil pipe (14), an air guide fan (15), an S-shaped guide pipe (16) and a sealing shutter (17) which have the same structure;
the air guide device is characterized in that the sealing shutter (17) is installed at the bottom end of the air preheating furnace (3), the air guide fan (15) is installed on the sealing shutter (17), the coiling pipe (14) is installed in the air preheating furnace (3) in a coiling mode, the pair of guide pipes (13) are respectively inserted between the coiling pipe (14) and the inner transportation box (4) and the outer transportation box (5), the S-shaped guide pipe (16) is installed at the top end of the air preheating furnace (3), and the other end of the S-shaped guide pipe (16) is connected to the bottom end of the combustion furnace (1).
3. The blast furnace gas boiler flue gas waste heat recovery system according to claim 1, wherein the outside of the air preheating furnace (3), the combustion furnace (1), the inner transportation box (4) and the outer transportation box (5) is provided with heat insulation paint.
4. The blast furnace gas boiler flue gas waste heat recovery system according to claim 1, wherein the bottom ends of the inner transporting box (4) and the outer transporting box (5) are at an angle of 30 ° to the ground.
5. The blast furnace gas boiler flue gas waste heat recovery system according to claim 1, wherein the inner transporting box (4) and the outer transporting box (5) are provided with collecting pipes in a plug-in manner.
6. The blast furnace gas boiler flue gas waste heat recovery system according to claim 1, wherein the conveyor belt (12) is provided with gathering strips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022269430.7U CN213630504U (en) | 2020-10-13 | 2020-10-13 | Flue gas waste heat recovery system of blast furnace gas boiler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022269430.7U CN213630504U (en) | 2020-10-13 | 2020-10-13 | Flue gas waste heat recovery system of blast furnace gas boiler |
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| CN213630504U true CN213630504U (en) | 2021-07-06 |
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| CN202022269430.7U Active CN213630504U (en) | 2020-10-13 | 2020-10-13 | Flue gas waste heat recovery system of blast furnace gas boiler |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113819455A (en) * | 2021-07-22 | 2021-12-21 | 华能巢湖发电有限责任公司 | Method and equipment for reducing NOx of boiler in multi-stage mode |
| CN114100388A (en) * | 2021-09-29 | 2022-03-01 | 华能太原东山燃机热电有限责任公司 | Gas-liquid mixing and pressurizing device for gas turbine |
-
2020
- 2020-10-13 CN CN202022269430.7U patent/CN213630504U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113819455A (en) * | 2021-07-22 | 2021-12-21 | 华能巢湖发电有限责任公司 | Method and equipment for reducing NOx of boiler in multi-stage mode |
| CN113819455B (en) * | 2021-07-22 | 2024-03-08 | 华能巢湖发电有限责任公司 | Method and equipment for reducing boiler NOx in multiple sections |
| CN114100388A (en) * | 2021-09-29 | 2022-03-01 | 华能太原东山燃机热电有限责任公司 | Gas-liquid mixing and pressurizing device for gas turbine |
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