CN211146886U - Waste heat recovery type gas hot-blast stove - Google Patents
Waste heat recovery type gas hot-blast stove Download PDFInfo
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- CN211146886U CN211146886U CN201922329677.0U CN201922329677U CN211146886U CN 211146886 U CN211146886 U CN 211146886U CN 201922329677 U CN201922329677 U CN 201922329677U CN 211146886 U CN211146886 U CN 211146886U
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model discloses a waste heat recovery formula gas hot-blast furnace. This waste heat recovery formula gas hot-blast furnace includes the gas hot-blast furnace main part of horizontal setting, and gas hot-blast furnace main part front end is provided with the air intake of natural gas combustor and air admission, and the air intake communicates to inside the gas hot-blast furnace main part through the wind channel, and the rear end is provided with hot-blast export. The waste gas waste heat recovery device is arranged at the front end of the gas hot blast stove main body and comprises a waste gas inlet communicated with the air inlet and used for introducing waste heat and waste gas, and the air inlet is provided with an air inlet valve used for controlling air inlet amount. The utility model provides a problem that energy utilization rate is low, waste heat waste gas does not obtain fully to fill and utilize, whole energy efficiency ratio is poor that current gas hot-blast furnace exists.
Description
Technical Field
The utility model relates to a dry trade thermal power equipment technical field especially relates to a waste heat recovery formula gas hot-blast furnace.
Background
With the stricter national environmental protection policy, more and more thermal power equipment which takes pollution fuels such as coal as energy and does not conform to international regulations are forbidden to be used, and natural gas which is clean energy is more and more widely applied as one of alternative energy, so that a gas hot blast stove which is clean energy thermal power equipment for the drying industry has wide market prospect.
The utility model with publication number CN207514973U in the prior art discloses a direct-fired gas hot-blast stove, which comprises a hollow furnace body, a furnace pipe, an air mixing chamber arranged in the cavity of the furnace body, and a burner arranged at one side of the furnace body and communicated with one end of the furnace pipe; the furnace pipe is horizontally arranged in the air mixing chamber, and the furnace body and the furnace pipe are coaxial; the inner wall of the furnace body is provided with a bracket for fixing the furnace pipe on the inner wall of the furnace body; one end of the furnace body is an air inlet communicated with the air mixing chamber, and the other end of the furnace body is an air outlet communicated with the air mixing chamber; an air inlet end cover is arranged at the position of an air inlet of the furnace body, the air inlet end cover is provided with a hollow air inlet grille, and one end of the furnace liner close to the air inlet end cover is arranged into a cone structure. The direct-combustion gas hot blast stove cannot utilize waste gas with residual heat discharged by drying equipment.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a waste heat recovery type gas hot blast stove which effectively utilizes dry waste gas and is matched with drying equipment.
In order to achieve the above purpose, the utility model discloses a technical scheme that waste heat recovery formula gas hot-blast furnace adopted is:
the utility model provides a waste heat recovery formula gas hot-blast furnace, includes the gas hot-blast furnace main part of horizontal setting, and the front end of gas hot-blast furnace main part is provided with the air intake of natural gas combustor and air admission, and the air intake communicates to inside the gas hot-blast furnace main part through the wind channel, and the rear end is provided with hot air exitus, air intake department is provided with waste gas waste heat recovery device, waste heat recovery device includes the waste gas entry that is used for letting in waste heat waste gas with the air intake intercommunication, the air intake is provided with the air inlet valve that is used for.
Preferably, the air inlet is symmetrically provided with two air inlet valves, and the waste gas inlet is arranged on the symmetrical surfaces of the two air inlet valves.
Preferably, the air inlet is provided with three air inlet valves, the upper side of the burner is provided with two symmetrical air inlet valves which are communicated with the air duct, the lower side of the burner is provided with an air inlet valve which is communicated with the air duct, and the waste gas inlet is arranged on the symmetrical surfaces of the two symmetrical air inlet valves.
Preferably, the flame combustion end of the natural gas burner is inserted into the gas hot blast stove main body, the cylindrical furnace pipe is arranged at the flame combustion end, an air channel for air to enter is formed between the furnace pipe and the inner wall of the gas hot blast stove main body, the natural gas combustion chamber is arranged inside the furnace pipe, the hot air outlet end of the furnace pipe is provided with a conical fire blocking cap, the conical tip of the fire blocking cap faces the furnace pipe, a gap for hot air to pass through is reserved between the fire blocking cap and the furnace pipe, an air mixing chamber for air, hot air and waste heat and waste gas is formed between the conical bottom of the fire blocking cap and the gas hot blast stove main body, and the air mixing chamber is communicated with a hot air outlet.
Preferably, a draught fan is arranged at the hot air outlet.
Preferably, the air inlet valve comprises a guide groove arranged at the air inlet, an inserting plate is inserted in the guide groove, and the opening degree of the air inlet is controlled by the sliding inserting plate.
Compared with the prior art, the utility model, have following advantage:
1. the utility model discloses accessible waste heat recovery pipeline becomes hot-blast reentrant drying equipment with the leading-in gas hot-blast furnace of dry waste gas through secondary heating, makes the heat that dry waste gas contains once more by recycle to saved energy such as fuel, reached energy saving and emission reduction's purpose.
2. The utility model discloses a this kind of waste heat recovery structure can realize the effective control of waste gas recovery volume, adjusts the intake through the aperture of air intake air inlet valve.
3. The utility model discloses the effect of this three air intake that adopts is different, arranges two air intakes that the symmetry set up in the upside and mainly is used for controlling waste gas recovery volume, and lower air intake primary function is the section of thick bamboo wall below the cooling furnace courage for furnace courage section of thick bamboo wall is heated evenly as far as possible, prolongs its life.
Drawings
Fig. 1 is a schematic structural diagram of a waste heat recovery type gas hot blast stove.
FIG. 2 is a side view of FIG. 1;
fig. 3 is a top view of fig. 1.
The hot air furnace comprises a gas hot air furnace body 1, an air duct 2, an air inlet duct 3, a fire blocking cap 4, an air mixing chamber 5, a hot air outlet 6, an induced draft fan 7, a waste gas inlet 8, a waste heat recovery device 10, a shell 11, a furnace pipe 12, a natural gas combustor 13, a guide groove 31 and a plugboard 15.
Detailed Description
The present invention will be further clarified by the following description in conjunction with the accompanying drawings, which are to be understood as illustrative only and not as limiting the scope of the invention, and modifications of the various equivalent forms of the invention by those skilled in the art after reading the present invention are within the scope defined by the appended claims.
As shown in fig. 1 to 3, a waste heat recovery type gas hot blast stove comprises a horizontal gas hot blast stove main body 1, the gas hot blast stove main body 1 comprises a cylindrical shell 11, a cylindrical furnace pipe 12 is arranged in the shell 11, a natural gas burner 13 inserted into the furnace pipe is arranged at the front end of the gas hot blast stove main body 1, the natural gas burner 13 sprays fire into the furnace pipe, an air inlet duct 2 is formed between the shell 11 and the furnace pipe 12, an air inlet 3 communicated with the air duct is arranged at the front end of the gas hot blast stove main body 1, a conical fire blocking cap 4 facing the furnace pipe is arranged in the shell, the conical tip of the fire blocking cap 4 faces the spray end of the furnace pipe and has a gap with the furnace pipe, enough space is arranged from the conical bottom of the fire blocking cap 4 to the tail part of the shell as an air mixing chamber 5, the flame sprayed in the furnace pipe and the air entering the air duct are sufficiently mixed and heated in the air mixing chamber, the rear end of the gas hot blast stove main body 1 is provided with a hot air outlet 6 communicated with the air mixing chamber, and an induced draft fan 7 for discharging heated air is arranged at the hot air outlet 6.
The front end of the gas hot blast stove main body 1 is also provided with a waste gas waste heat recovery device 10, the waste heat recovery device 10 comprises two air inlets 3 symmetrically arranged on the upper side of a natural gas burner 13, the air inlets 3 and the air duct 2 are in the same direction, a waste gas inlet 8 used for introducing waste gas is arranged on the symmetrical surface of the air inlets 3, the waste gas inlet 8 is vertical and upward, and the waste gas enters the air duct from top to bottom and is mixed with the air entering the air inlets. An air inlet 3 for introducing air is arranged at the lower side of the natural gas combustor 13, and the air inlet 3 is communicated with the air duct 2. All the air inlets 3 are provided with air inlet valves, each air inlet valve comprises a guide groove 31 arranged at the air inlet, an inserting plate 32 is inserted in each guide groove, and the opening degree of each air inlet is controlled by sliding the inserting plates.
The utility model discloses a concrete working process and principle: the natural gas burner 13 is ignited and sprays flame to burn in the furnace pipe 12, generated hot gas is diffused through the fire blocking cap 4 and then uniformly enters the air mixing chamber 5 to be fully mixed with the entering air to be changed into dry medium-hot air, the hot air is sent into the drying equipment through the hot air outlet 6 and the induced draft fan 7 to carry out damp heat exchange to dry the material, the hot air is changed into dry waste gas to be discharged out of the drying equipment, the recyclable dry waste gas enters the waste heat recovery device 10 at the front end of the gas hot blast stove main body 1 through the waste heat recovery pipeline, the waste gas, the gas and part of the air are mixed and heated to be changed into hot air to be sent into the drying equipment again, and at the moment, the waste heat of the dry waste.
In the description of the present invention, it is to be understood that the terms "front end", "rear end", "left", "right", "lower", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
In the present invention, unless otherwise explicitly specified or limited, the terms "provided", "connected", "disposed", and the like are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (6)
1. The utility model provides a waste heat recovery formula gas hot-blast furnace, includes the gas hot-blast furnace main part of horizontal setting, and the front end of gas hot-blast furnace main part is provided with the air intake of natural gas burner and air admission, and the air intake communicates inside the gas hot-blast furnace main part through the wind channel, and the rear end is provided with hot-blast export, its characterized in that: the air inlet department is provided with waste gas waste heat recovery device, waste heat recovery device includes the waste gas entry that is used for letting in waste heat waste gas with the air intake intercommunication, the air intake is provided with the air inlet valve that is used for controlling the air admission volume.
2. The waste heat recovery type gas hot blast stove according to claim 1, characterized in that: the air inlet is symmetrically provided with two air inlet valves, and the waste gas inlet is arranged on the symmetrical surfaces of the two air inlet valves.
3. The waste heat recovery type gas hot blast stove according to claim 1, characterized in that: the air inlet is provided with three air inlet valves, the upper side of the burner is provided with two symmetrical air inlet valves which are communicated with the air channel, the lower side of the burner is provided with an air inlet valve which is communicated with the air channel, and the waste gas inlet is arranged on the symmetrical surfaces of the two symmetrical air inlet valves.
4. The waste heat recovery type gas hot blast stove according to claim 1, characterized in that: the natural gas burner is characterized in that a flame combustion end is inserted into a main body of the gas hot blast stove, a cylindrical furnace pipe is arranged at the flame combustion end, an air channel for air to enter is formed between the furnace pipe and the inner wall of the main body of the gas hot blast stove, a natural gas combustion chamber is arranged inside the furnace pipe, a conical fire blocking cap is arranged at a hot air outlet end of the furnace pipe, a conical tip of the fire blocking cap faces the furnace pipe, a gap for hot air to pass through is reserved between the fire blocking cap and the furnace pipe, an air mixing chamber for air, hot air and waste heat and waste gas is formed between a conical bottom of the fire blocking cap and the main body of the gas hot blast stove, and the air mixing.
5. The waste heat recovery type gas hot blast stove according to claim 1, characterized in that: and a draught fan is arranged at the hot air outlet.
6. The waste heat recovery type gas hot blast stove according to claim 1, characterized in that: the air inlet valve comprises a guide groove arranged at the air inlet, an inserting plate is inserted in the guide groove, and the opening degree of the air inlet is controlled by the sliding inserting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922329677.0U CN211146886U (en) | 2019-12-23 | 2019-12-23 | Waste heat recovery type gas hot-blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922329677.0U CN211146886U (en) | 2019-12-23 | 2019-12-23 | Waste heat recovery type gas hot-blast stove |
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| Publication Number | Publication Date |
|---|---|
| CN211146886U true CN211146886U (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922329677.0U Active CN211146886U (en) | 2019-12-23 | 2019-12-23 | Waste heat recovery type gas hot-blast stove |
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| CN (1) | CN211146886U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113899192A (en) * | 2021-10-28 | 2022-01-07 | 江苏正昌粮机股份有限公司 | Gas heating system of belt dryer |
-
2019
- 2019-12-23 CN CN201922329677.0U patent/CN211146886U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113899192A (en) * | 2021-10-28 | 2022-01-07 | 江苏正昌粮机股份有限公司 | Gas heating system of belt dryer |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220422 Address after: 225000 No.1, Huasheng Road, high tech Industrial Development Zone, Yangzhou City, Jiangsu Province Patentee after: Jiangsu Fengshang steel plate warehouse Engineering Co.,Ltd. Address before: 225000 No. 1, Huasheng Road, Industrial Development Zone, high tech Zone, Yangzhou City, Jiangsu Province Patentee before: Jiangsu Fengshang Drying Equipment Co.,Ltd. |
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| TR01 | Transfer of patent right |