CN210486081U - High-temperature hot blast stove capable of directly exchanging heat - Google Patents
High-temperature hot blast stove capable of directly exchanging heat Download PDFInfo
- Publication number
- CN210486081U CN210486081U CN201921025957.6U CN201921025957U CN210486081U CN 210486081 U CN210486081 U CN 210486081U CN 201921025957 U CN201921025957 U CN 201921025957U CN 210486081 U CN210486081 U CN 210486081U
- Authority
- CN
- China
- Prior art keywords
- heat exchange
- gas
- communicated
- temperature hot
- ceramic burner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Air Supply (AREA)
Abstract
The utility model relates to a high-temperature hot blast stove with direct heat exchange, which effectively solves the problems of reducing cost, prolonging service life and improving air temperature and thermal efficiency, an air nozzle and a gas nozzle are arranged on the side wall of a combustion chamber, an air inlet pipe and a gas inlet pipe are arranged on the side wall of a ceramic burner and are connected with an air loop and a gas loop in the ceramic burner, a high-temperature hot air outlet pipe is arranged on the side wall of the ceramic burner, a cold air inlet pipe is arranged at the lower part of the furnace body, a waste gas outlet pipe is arranged on a base, a heat storage chamber body is arranged at the centers of the furnace body and the ceramic burner, a heat exchange body is arranged in the heat storage chamber body, a sealing wall is arranged between the two heat exchange bodies and between the furnace body, a cold air through hole on the heat storage chamber body is communicated with a gap between the furnace body and the heat storage chamber body, the upper end of the cold, the upper end of the flue gas vertical channel is connected with the combustion chamber, and the lower end of the flue gas vertical channel is connected with the flue gas chamber.
Description
Technical Field
The utility model relates to a hot-blast furnace, especially a high temperature hot-blast furnace of direct heat transfer.
Background
The hot blast stove is a common device in the fields of heat energy, chemical engineering and metallurgical engineering, is an indispensable important thermal device for obtaining high temperature by adopting gas combustion, and mainly comprises a stove body, a burner and a vault. In the application with low temperature requirement, the dividing wall type heat exchange hot blast stove made of metal is the mainstream, and the dividing wall type hot blast stove which is made of metal cannot be directly used for obtaining hot blast of high-temperature gas, but a heat accumulating type ceramic heat exchange intermittent working hot blast stove is adopted. However, due to the structural problems, the lack of high-temperature resistant metal materials or the poor high-temperature performance of the metal materials, even if the heat accumulating type hot blast stove is far higher than a dividing wall type hot blast stove from the investment cost to the operating cost, because a plurality of hot blast stoves are required to operate alternately to realize the continuous supply of high-temperature gas, three hot blast stoves or four hot blast stoves are required to be operated by two-burning one-feeding or two-burning two-feeding, the investment cost is high, the heat efficiency is low, and the service life is not fully satisfactory. Therefore, improvement and innovation on the hot blast stove are imperative.
SUMMERY OF THE UTILITY MODEL
To the above situation, in order to overcome the defects of the prior art, the utility model aims to provide a high-temperature hot-blast stove with direct heat exchange, which can effectively solve the problems of reducing investment cost, prolonging service life and further improving air temperature and thermal efficiency.
The technical proposal of the utility model is that, the high temperature hot blast stove with direct heat exchange comprises a base, a stove body, a ceramic burner and a vault, wherein the stove body is arranged on the base, the ceramic burner is arranged on the upper mouth part of the stove body through a connector, the upper mouth part of the ceramic burner is provided with the vault which is connected into a whole, the inner cavity of the ceramic burner and the lower part of the vault form a combustion chamber, the side wall of the combustion chamber is provided with air nozzles and gas nozzles which are staggered on the same ring surface, and are respectively communicated with an air ring channel and a gas ring channel in the ceramic burner, an air inlet pipe is arranged on one side wall of the ceramic burner, a gas inlet pipe is arranged on the side wall of the ceramic burner below the air inlet pipe, the air inlet pipe is communicated with the air ring channel, the gas inlet pipe is communicated with the gas ring channel, the other side wall of the ceramic burner is provided, an exhaust gas outlet pipe is arranged on the side wall of the base, a grate is arranged between the upper part of the base and the lower part of the furnace body, the furnace body is a hollow ceramic body, concentric heat accumulation chamber bodies are sleeved in the centers of the furnace body and the ceramic burner, the lower part of each heat accumulation chamber body is arranged on the grate, heat exchange bodies (heat accumulation bodies) which are alternately opened are uniformly distributed in the heat accumulation chamber bodies from top to bottom, sealing walls which are uniformly distributed in a staggered manner are arranged between the outer wall between every two adjacent heat exchange bodies and the inner wall of the furnace body, transverse cold air through holes are uniformly distributed in the vertical wall body of each heat accumulation chamber body, two ends of each cold air through hole are respectively communicated with a gap between the furnace body and the heat accumulation chamber bodies and the transverse cold air through holes on the heat exchange bodies to form a snake-shaped cold air channel (or a hot air channel after heat exchange), the upper end of each cold air channel is communicated with a high-temperature hot air outlet pipe, and the lower end of each; each heat exchange body is provided with an upper vertical flue gas through hole and a lower vertical flue gas through hole, each vertical flue gas through hole is sealed and isolated from the corresponding transverse hot air through hole, the vertical flue gas through holes in each heat exchange body are communicated to form a vertical flue gas channel, the upper end of each vertical flue gas channel is communicated with the combustion chamber, the lower end of each vertical flue gas channel is communicated with a flue gas chamber in the base through a grate, and the flue gas chamber is communicated with a waste gas outlet pipe in the side wall of the base to form a waste gas discharge structure.
The utility model discloses novel structure is unique, builds convenient to use, and is with low costs, efficient, long service life, and energy-concerving and environment-protective is the innovation on the hot-blast furnace, has huge economy and social.
Drawings
Fig. 1 is a front view of the structure section of the present invention.
Fig. 2 is a plan view of the furnace body of the present invention.
Fig. 3 is a front view of the thermal storage chamber body of the present invention in partial section.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in figures 1-3, the utility model relates to a high temperature hot blast stove with direct heat exchange, which comprises a base, a stove body, a ceramic burner and a vault, wherein the stove body 1 is arranged on the base 2, the ceramic burner 4 is arranged at the upper opening part of the stove body 1 through a connector 3, the vault 5 which is connected into a whole is arranged at the upper opening part of the ceramic burner 4, a combustion chamber 7 is formed in the inner cavity of the ceramic burner and the lower part of the vault, air nozzles 4-1 and gas nozzles 4-5 which are staggered on the same ring surface are arranged on the side wall of the combustion chamber and are respectively communicated with an air ring channel and a gas ring channel in the ceramic burner, an air inlet pipe 4-3 is arranged on one side wall of the ceramic burner 4, a gas inlet pipe 4-4 is arranged on the side wall of the ceramic burner below the air inlet pipe 4-3, and the air inlet pipe 4, a gas inlet pipe 4-4 is communicated with a gas loop, a high-temperature hot air outlet pipe 4-2 is arranged on the other side wall of the ceramic burner 4, a cold air inlet pipe 1-1 is arranged on the lower part of the furnace body close to the side wall of the base, a waste gas outlet pipe 2-1 is arranged on the side wall of the base, a grate 6 is arranged between the upper part of the base and the lower part of the furnace body, the furnace body 1 is a hollow ceramic body, a concentric heat accumulation chamber body 8 is sleeved in the center of the furnace body and the ceramic burner, the lower part of the heat accumulation chamber body 8 is arranged on the grate 6, heat exchange bodies (heat accumulation bodies) 1-2 are uniformly distributed in the heat accumulation chamber body 8 from top to bottom, sealing walls 1-6 which are uniformly distributed in a staggered manner are arranged between the outer wall between every two adjacent heat exchange bodies and the inner wall of the furnace body, transverse cold air through holes are uniformly distributed on the vertical wall body of the heat accumulation chamber body 8, and transverse cold air through 3, a snake-shaped cold air channel (or called a hot air channel after heat exchange) is formed, the upper end of the cold air channel is communicated with a high-temperature hot air outlet pipe 4-2, and the lower end of the cold air channel is communicated with an inlet of a cold air inlet pipe 1-1, so that a high-temperature hot air discharge structure after cold air heat exchange is formed; each heat exchange body is provided with an upper vertical flue gas through hole 1-5 and a lower vertical flue gas through hole 1-4 which are sealed and isolated, the vertical flue gas through holes on each heat exchange body are communicated to form a vertical flue gas channel, the upper end of the vertical flue gas channel is communicated with a combustion chamber 7, the lower end of the vertical flue gas channel is communicated with a flue gas chamber 2-2 in the base through a grate 6, and the flue gas chamber 2-2 is communicated with a waste gas outlet pipe 2-1 on the side wall of the base to form a waste gas discharge structure.
In order to ensure the use effect and convenient use, the cross section of the furnace body 1 is rectangular or circular, a reinforced steel rib plate is arranged outside the furnace body, and a high-temperature refractory material layer is built on the inner wall of the furnace body;
vertical parallel isolation bodies 2-3 are built in a flue gas chamber 2-2 in the base 2, transverse waste gas through holes 2-5 are formed in the isolation bodies 2-3, and the waste gas through holes 2-5 are communicated with a waste gas outlet pipe 2-1 to form a waste gas discharge structure;
the upper end of the high-temperature hot gas discharge structure is hermetically isolated from the combustion chamber 7, the lower end of the high-temperature hot gas discharge structure is hermetically isolated from the waste gas outlet pipe 2-1, and the sealing walls 1-6 are arranged at the gap between the furnace body 1 and the heat storage chamber body 8 on the upper side and the lower side of the heat exchange body 1-2 in a staggered manner to form the high-temperature hot gas serpentine discharge structure.
When the utility model is used, coal gas and air enter the combustion chamber to be mixed and combusted, and directly exchange heat through the heat exchange body, because the heat exchange body structure in the heat exchange chamber is a high-temperature hot air discharge channel (structure) which is not communicated with each other vertically and horizontally, and a snakelike cold air channel (structure), high temperature generated by the combustion chamber is discharged from a high-temperature hot air outlet pipe through the upper and lower high-temperature hot air discharge channels, cold air enters spaced transverse cold air through holes through a cold air inlet pipe, then enters the transverse cold air through holes on each heat exchange body upwards, is turned back to enter the cold air channel, and then enters the transverse cold air through holes of the upper layer of heat exchange body, is a snakelike cold air channel (or called as a hot air channel after heat exchange), and is discharged through the high-temperature hot air outlet pipe, thereby not only increasing the heat accumulation amount of the heat accumulator, but also greatly prolonging the heat accumulation, and energy conservation and emission reduction are realized. And through on-site tests and tests, the effect is very good, compared with the configuration of a traditional two-combustion one-delivery or two-combustion two-delivery three-hot-blast stove or four-hot-blast stove, only one hot-blast stove is needed to be configured or one hot-blast stove is needed to be prepared, the investment cost is greatly reduced, the service life is effectively prolonged, the investment can be saved by 40-60%, the heat utilization rate is improved by more than 20%, the service life is prolonged by more than 1 time, the temperature of a furnace body is more than 1500 ℃, the temperature in the furnace body can reach about 1400 ℃, the temperature of waste gas discharged after heat exchange is less than 150 ℃, energy conservation, emission reduction and environmental protection are really realized, and huge economic and social.
Claims (4)
1. A high-temperature hot blast stove with direct heat exchange comprises a base, a stove body, a ceramic burner and a vault, and is characterized in that the stove body (1) is arranged on the base (2), the ceramic burner (4) is arranged at the upper opening of the stove body (1) through a connector (3), the vault (5) which is connected into a whole is arranged at the upper opening of the ceramic burner (4), a combustion chamber (7) is formed in the inner cavity of the ceramic burner and the lower part of the vault, air nozzles (4-1) and gas nozzles (4-5) which are arranged on the same ring surface in a staggered manner are arranged on the side wall of the combustion chamber and are respectively communicated with an air ring channel and a gas ring channel in the ceramic burner, an air inlet pipe (4-3) is arranged on one side wall of the ceramic burner (4), a gas inlet pipe (4-4) is arranged on the side wall of the ceramic burner below the air inlet pipe (4, an air inlet pipe (4-3) is communicated with an air loop, a gas inlet pipe (4-4) is communicated with a gas loop, a high-temperature hot air outlet pipe (4-2) is arranged on the other side wall of a ceramic burner (4), a cold air inlet pipe (1-1) is arranged on the lower portion of a furnace body close to the side wall of a base, a waste gas outlet pipe (2-1) is arranged on the side wall of the base, a grate (6) is arranged between the upper portion of the base and the lower portion of the furnace body, the furnace body (1) is a hollow ceramic body, a concentric heat storage chamber body (8) is sleeved in the centers of the furnace body and the ceramic burner, the lower portion of the heat storage chamber body (8) is arranged on the grate (6), heat exchange bodies (1-2) which are spaced from top to bottom are uniformly distributed in the heat storage chamber body (8), sealing walls (1-6) which are, the vertical wall body of the heat storage chamber body (8) is provided with uniformly distributed and transverse cold air through holes, two ends of each cold air through hole are respectively communicated with a gap between the furnace body and the heat storage chamber body (8) and the transverse cold air through holes (1-3) on the heat exchange body (1-2) to form a snake-shaped cold air channel, the upper end of the cold air channel is communicated with the high-temperature hot air outlet pipe (4-2), and the lower end of the cold air channel is communicated with the inlet of the cold air inlet pipe (1-1) to form a high-temperature hot air exhaust structure after cold air heat exchange; vertical through holes (1-5) of flue gas from top to bottom are formed in each heat exchange body, each vertical through hole of flue gas is hermetically isolated from the corresponding horizontal hot air through hole (1-4), the vertical through holes of flue gas on each heat exchange body are communicated to form a vertical flue gas channel, the upper end of the vertical flue gas channel is communicated with a combustion chamber (7), the lower end of the vertical flue gas channel is communicated with a flue gas chamber (2-2) in the base through a grate (6), and the flue gas chamber (2-2) is communicated with a waste gas outlet pipe (2-1) on the side wall of the base to form a waste gas discharging structure.
2. The high-temperature hot blast stove with direct heat exchange according to claim 1, characterized in that the cross section of the stove body (1) is rectangular or circular, a reinforced steel rib plate is arranged outside the stove body, and a high-temperature refractory material layer is built on the inner wall.
3. The high-temperature hot blast stove with direct heat exchange according to claim 1, characterized in that vertical parallel isolation bodies (2-3) are built in the flue gas chamber (2-2) in the base (2), the isolation bodies (2-3) are provided with transverse waste gas through holes (2-5), and the waste gas through holes (2-5) are communicated with the waste gas outlet pipe (2-1) to form a waste gas discharge structure.
4. The high-temperature hot-blast stove with direct heat exchange according to claim 1, characterized in that the upper end of the high-temperature hot-gas discharge structure is hermetically isolated from the combustion chamber (7), the lower end of the high-temperature hot-gas discharge structure is hermetically isolated from the exhaust gas outlet pipe (2-1), and the sealing walls (1-6) are arranged in a staggered manner in the gap between the furnace body (1) and the heat storage chamber body (8) on the upper and lower sides of the heat exchange body (1-2) to form a serpentine high-temperature hot-gas discharge structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921025957.6U CN210486081U (en) | 2019-07-03 | 2019-07-03 | High-temperature hot blast stove capable of directly exchanging heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921025957.6U CN210486081U (en) | 2019-07-03 | 2019-07-03 | High-temperature hot blast stove capable of directly exchanging heat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210486081U true CN210486081U (en) | 2020-05-08 |
Family
ID=70531292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921025957.6U Active CN210486081U (en) | 2019-07-03 | 2019-07-03 | High-temperature hot blast stove capable of directly exchanging heat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210486081U (en) |
-
2019
- 2019-07-03 CN CN201921025957.6U patent/CN210486081U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204006647U (en) | Semi-coal gas downward-burning type tubulation multistage heat exchange smoke-dust-free hot-air furnace | |
| CN104595897A (en) | Single-layer porous foam ceramic plate partial pre-mixing fuel gas combustor | |
| CN101608793A (en) | Air and gas double heat accumulating type burner | |
| CN201225620Y (en) | Air single thermal storage combustor | |
| CN102878808B (en) | Series connection industrial kiln | |
| CN102218525A (en) | High-efficiency energy-saving baking device of continuous casting tundish | |
| CN102618681A (en) | Grate-free double-preheating top combustion type hot blast stove | |
| CN210237665U (en) | Ceramic body high-temperature hot blast stove with heat exchange chamber | |
| CN210463577U (en) | High-temperature hot blast stove with heat exchange body for direct heat exchange | |
| CN111043869B (en) | Heating furnace heat exchange and heat storage combined heat recovery system and operation method thereof | |
| CN210486081U (en) | High-temperature hot blast stove capable of directly exchanging heat | |
| CN103740383B (en) | Transverse reciprocating heating system of coke oven | |
| CN202928349U (en) | Series-connection industrial furnace | |
| CN210237664U (en) | Ceramic body high-temperature hot blast stove capable of directly burning for heat exchange | |
| CN100578085C (en) | Multiple fire hole flame-free ceramic burner | |
| CN103542518A (en) | Biomass double-heat-exchange reversal burning type hot-air furnace | |
| CN201801535U (en) | Vertical top combustion type high-efficiency checker brick hot-blast stove changed from external combustion | |
| CN109945192B (en) | High-calorific-value fuel concentric jet air single-heat-storage burner | |
| CN201809370U (en) | Vertical top-combustion blast stove improved from pebble stove | |
| CN212618305U (en) | Natural gas single heat storage burner | |
| CN101186829B (en) | Composite heat type one-sided air flue coke oven | |
| CN210506408U (en) | High-efficiency energy-saving high-air-temperature hot blast stove | |
| CN201106926Y (en) | Preheating device of hot blast stove | |
| CN107903920B (en) | Heat storage chamber of vertical furnace | |
| CN112280571A (en) | Adjustable coke oven inclined passage port structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |