CN210165363U - Whole-package straw gasification combustion furnace - Google Patents
Whole-package straw gasification combustion furnace Download PDFInfo
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- CN210165363U CN210165363U CN201921054042.8U CN201921054042U CN210165363U CN 210165363 U CN210165363 U CN 210165363U CN 201921054042 U CN201921054042 U CN 201921054042U CN 210165363 U CN210165363 U CN 210165363U
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- speed reducer
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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 relates to a whole package straw gasification fires burning furnace, include: the device comprises a gasification furnace body, an ash chamber, a grate supporting beam, a grate vertical shaft, a bearing seat, a grate gear, a rotary grate, a charging opening, a fuel conveyor, a heat exchanger, a waste heat recoverer, an air preheater and a transmission mechanism. Because the utility model discloses a set up multilayer rotary grate in gasification furnace body, by little to big range, be the turriform, have good breakage and clear away the function to the big lime-ash that forms after earth and the mineral substance high temperature combustion that whole package straw was taken. The lower air ring is arranged on the outer side below the gasification furnace body, and the upper air ring is arranged on the outer side above the gasification furnace body, so that the whole straw bag can be combusted more fully. The utility model discloses can realize that whole package straw gasification burning in the boiler, the burning is abundant, and the environmental protection is pollution-free, and the oil that does not coke and the ash removal are effectual, and the thermal efficiency is high, has reduced the fuel cost.
Description
Technical Field
The utility model relates to the technical field of boilers, concretely relates to whole package straw gasification fires burning furnace.
Background
Under the condition of environmental management and continuously increasing the intensity of atmospheric pollution reduction and remediation, the comprehensive utilization of agricultural straws is required, and direct burning in the field is not allowed. At present, agricultural straws are mainly used as fuel for industrial production and civil heating after being packed in the field, transported to a factory, screened for impurity removal, crushed, dried and granulated, the production and use process of the agricultural straws has large manpower and energy consumption, the price of the agricultural straws is more than three times of that of the straws after being processed into granules, and the agricultural straws are hardly accepted by the market. The popularization and application of the straw as fuel can be influenced to a certain extent. At present, the whole straw bags are sent into a boiler for combustion, and due to the defects of the designed furnace body structure, the problems of insufficient combustion, low thermal efficiency, and unsatisfactory coking oil and ash removal caused by the whole straw bags still exist, so that the fuel cost is increased, and the environment-friendly effect is poor.
Disclosure of Invention
The utility model aims at providing a whole package straw gasification fires burning furnace can realize whole package straw gasification burning in the boiler, and the burning is abundant, and the environmental protection is pollution-free, and coking oil and ash removal are effectual not, and the thermal efficiency is high, has reduced the fuel cost.
In order to achieve the above purpose, the technical scheme of the utility model is that: a whole-package straw gasification combustion furnace comprises: the gasification furnace comprises a gasification furnace body, an ash chamber, a grate supporting beam, a grate vertical shaft, a bearing seat, a grate gear, a rotary grate, a charging port, a fuel conveyor, a heat exchanger, a waste heat recoverer, an air preheater and a transmission mechanism, wherein the gasification furnace body is provided with the charging port which is connected with the fuel conveyor, the heat exchanger is arranged above the gasification furnace body and is connected with the waste heat recoverer through a smoke pipe, the waste heat recoverer is connected with the air preheater below the waste heat recoverer, smoke of the air preheater is discharged into a chimney through a draught fan, the ash chamber is arranged below the gasification furnace body, the grate supporting beam is arranged above the ash chamber, the grate vertical shaft is fixedly arranged on the grate supporting beam through the bearing seat, the grate gear and the rotary grate are arranged above the grate vertical shaft, the rotary grate is positioned above the grate gear, the grate is driven to rotate, the inner side of the lower air ring is provided with an air inlet pipe, the inner cavity of the lower air ring is communicated with the lower part of a rotary grate of the gasification furnace body through the air inlet pipe, and an air inlet of the lower air ring is connected with a blower through an air pipe; an upper air ring is arranged on the outer side above the gasification furnace body, an air inlet pipe is arranged on the inner side of the upper air ring, the inner cavity of the upper air ring is communicated with a gasification chamber of the gasification furnace body through the air inlet pipe, and an air inlet of the upper air ring is connected with a blower through an air pipe.
The rotary grate comprises: the shaft sleeve is fixedly connected with the vertical shaft of the fire grate through a single key, the top disc is welded at the top end of the shaft sleeve, 3-10 layers of supporting beams are welded on the outer side of the shaft sleeve below the top disc, the lower disc is welded above the supporting beams, the lower disc is annular, the lower discs are arranged from small to large and are tower-shaped, the disc holes are uniformly distributed in the top disc and the lower disc, and the shaft sleeve is sleeved on the vertical shaft of the fire grate.
The heat exchanger comprises: the boiler comprises a lower boiler barrel, an upper boiler barrel and a convection tube bundle, wherein the lower boiler barrel is arranged below a heat exchanger, the upper boiler barrel is arranged above the heat exchanger, the lower boiler barrel is connected with the upper boiler barrel through the convection tube bundle, a water inlet is formed in the bottom end of the lower boiler barrel, and a water outlet is formed in the upper end of the upper boiler barrel.
The heat exchanger can also be a steam exchanger, a hot air exchanger and a medium oil exchanger.
The transmission mechanism includes: the external speed reducer is meshed with the grate gear, the reducer gear on the output shaft of the internal speed reducer drives the grate gear on the vertical shaft of the grate, and the vertical shaft of the grate drives the rotary grate to rotate.
The transmission mechanism includes: the vertical grate shaft, external speed reducer, speed reducer chain wheel, chain and grate chain wheel are installed on the vertical grate shaft under the rotary grate, the external speed reducer is installed on the external side under the gasification furnace body, the speed reducer chain wheel is installed on the output shaft of the external speed reducer, the speed reducer chain wheel and the grate chain wheel are connected and driven through the chain, and the vertical grate shaft drives the rotary grate to rotate.
The gasification furnace is externally provided with a furnace door.
Because the utility model discloses a set up multilayer rotary grate in gasification furnace body, by little to big range, be the turriform, have good breakage and clear away the function to the big lime-ash that forms after earth and the mineral substance high temperature combustion that whole package straw was taken. The lower air ring is arranged on the outer side below the gasification furnace body, and the upper air ring is arranged on the outer side above the gasification furnace body, so that the whole straw bag can be combusted more fully. The utility model discloses can realize that whole package straw gasification burning in the boiler, the burning is abundant, and the environmental protection is pollution-free, and the oil that does not coke and the ash removal are effectual, and the thermal efficiency is high, has reduced the fuel cost.
Drawings
Figure 1 front view of the present invention
FIG. 2 is a cross-sectional view of a rotating grate;
FIG. 3 is a top view of FIG. 2;
fig. 4 is a front view of another embodiment of the present invention.
In the figure, 1, a gasification furnace body, 2, an ash chamber, 3, a grate supporting beam, 4, an external speed reducer, 5, a transmission shaft, 6, an internal speed reducer, 7, a speed reducer gear, 8, a grate vertical shaft, 9, a bearing seat 10, a grate gear, 11, a lower air ring, 12, an air inlet pipe, 13, a furnace door, 14, a rotary grate, 15, an upper air ring, 16, a charging port, 17 a fuel conveyor, 18, a heat exchanger, 19, a lower boiler barrel, 20, an upper boiler barrel, 21 convection tube bundles, 22, a water inlet, 23, a water outlet, 24, a waste heat recoverer 25, an air preheater, 26, a waste heat water inlet, 27, a waste heat recoverer water outlet, 28, an induced draft fan, 29, a blower, 30, an air pipe, 31, a chimney, 32, a smoke pipe, 33, a gasification chamber, 34, a shaft sleeve, 35, a supporting beam, 36, a lower disc, 37, a top disc, 38, disc holes, 40, 42. a grate sprocket.
Detailed description of the invention
As shown in the figure, the utility model relates to a whole packet of straw gasification fires burning furnace, include: the gasification furnace comprises a gasification furnace body 1, an ash chamber 2, a grate supporting beam 3, a grate vertical shaft 8, a bearing seat 9, a grate gear 10, a rotary grate 14, a charging opening 16, a fuel conveyor 17, a heat exchanger 18, a waste heat recoverer 24, an air preheater 25 and a transmission mechanism, wherein the gasification furnace body 1 is provided with the charging opening 16, the charging opening 16 is connected with the fuel conveyor 17, the heat exchanger is arranged above the gasification furnace body 1, the heat exchanger 18 is connected with the waste heat recoverer 24 through a smoke pipe 32, the waste heat recoverer 24 is connected with the air preheater 25 below the waste heat recoverer, the smoke of the air preheater (25) is discharged into a chimney 31 through an induced draft fan 28, the ash chamber 2 is arranged below the gasification furnace body 1, the grate supporting beam 3 is arranged above the ash chamber, the grate vertical shaft 8 is fixedly arranged on the grate supporting beam 3 through the bearing seat 9, the rotary fire grate 14 is positioned above the fire grate gear 10, the fire grate vertical shaft 8 is driven to rotate by a transmission mechanism, the outer side of the lower part of the gasification furnace body 1 is provided with a lower air ring 11, the inner side of the lower air ring 11 is provided with an air inlet pipe 12, the inner cavity of the lower air ring 11 is communicated with the lower part of the rotary fire grate 14 of the gasification furnace body 1 through the air inlet pipe 12, and the air inlet of the lower air ring 11 is connected with a blower 29 through an air pipe 30; an upper air ring 15 is arranged on the outer side above the gasification furnace body 1, an air inlet pipe is arranged on the inner side of the upper air ring 15, the inner cavity of the upper air ring 15 is communicated with a gasification chamber 33 of the gasification furnace body 1 through the air inlet pipe, and an air inlet of the upper air ring 15 is connected with a blower 29 through an air pipe 30.
The rotary grate 14 comprises a shaft sleeve 34, a supporting beam 35, a lower disc 36, a top disc 37 and disc holes 38, wherein the shaft sleeve 34 is fixedly connected with the vertical grate shaft 8 through a single key, the top disc 37 is welded at the top end of the shaft sleeve 34, 3-10 layers of supporting beams 35 are welded on the outer side of the shaft sleeve below the top disc 37, the lower disc 36 is welded above the supporting beam 35, the lower disc 36 is annular, the lower discs (36) are arranged from small to large and are tower-shaped, the disc holes 38 are uniformly distributed in the top disc 37 and the lower disc 36, and the shaft sleeve 34 is sleeved on the vertical grate shaft 8.
The heat exchanger 18 includes: the boiler comprises a lower boiler barrel 19, an upper boiler barrel 20 and a convection tube bundle 21, wherein the lower boiler barrel is arranged below a heat exchanger, the upper boiler barrel is arranged above the heat exchanger, the lower boiler barrel is connected with the upper boiler barrel through the convection tube bundle, a water inlet 22 is arranged at the bottom end of the lower boiler barrel, and a water outlet 23 is arranged at the upper end of the upper boiler barrel.
The heat exchanger can also be a steam exchanger, a hot air exchanger and a medium oil exchanger.
The transmission mechanism includes: the gasification furnace comprises an external speed reducer 4, an internal speed reducer 6, a transmission shaft 5, a grate vertical shaft 8 and a grate gear 10, wherein the grate vertical shaft 8 below a rotary grate 14 is provided with the grate gear 10, the grate supporting beam 3 is fixedly provided with the internal speed reducer 6, an output shaft of the internal speed reducer 6 is provided with a speed reducer gear 7, the outer side below the gasification furnace body 1 is provided with the external speed reducer 4, the external speed reducer 4 is connected with an input shaft of the internal speed reducer 6 through the transmission shaft 5, the speed reducer gear 7 is in meshed transmission with the grate gear 10, the speed reducer gear 7 on the output shaft of the internal speed reducer 6 drives the grate gear 10 on the grate vertical shaft.
The transmission mechanism includes: the rotary grate comprises a grate vertical shaft 8, an external speed reducer 4, a speed reducer chain wheel 40, a chain 41 and a grate chain wheel 42, wherein the grate vertical shaft 8 below the rotary grate 14 is provided with the grate chain wheel 42, the external side below the gasification furnace body 1 is provided with the external speed reducer 4, the output shaft of the external speed reducer 4 is provided with the speed reducer chain wheel 40, the speed reducer chain wheel 40 is connected with the grate chain wheel 42 through the chain 41 for transmission, and the grate vertical shaft drives the rotary grate to rotate.
And a furnace door 13 is arranged outside the gasification furnace body 1.
Working process
The fuel conveyor 17 feeds the straw packets into the gasification furnace body through the feed inlet 16 and above the rotary fire grate 14, the rotary fire grate 14 is fixedly arranged on a fire grate vertical shaft 8 and is arranged from small to large and takes the shape of a tower; an external speed reducer 4 is arranged on the outer side below the gasification furnace body 1 and drives an internal speed reducer 6 through a transmission shaft 5, a speed reducer gear 7 on an output shaft of the internal speed reducer 6 drives a grate gear 10 on a grate vertical shaft 8, the grate vertical shaft 8 drives a rotary grate 14 to rotate, and straw bags rotate and roll on the tower-shaped rotary grate 14 to achieve the purpose of continuous combustion.
A lower air ring 11 is arranged on the outer side of the lower part of the gasification furnace body 1, an air inlet pipe 12 is arranged on the inner side of the lower air ring 11, the inner cavity of the lower air ring 11 is communicated with the lower part of a rotary grate 14 of the gasification furnace body 1 through the air inlet pipe 12, an air inlet of the lower air ring 11 is connected with a blower 29 through an air pipe 30, and an induced draft fan 28 is connected with an air outlet of an air preheater 25 through an air channel; an upper air ring 15 is arranged on the outer side above the gasification furnace body 1, an air inlet pipe is arranged on the inner side of the upper air ring 15, the inner cavity of the upper air ring 15 is communicated with a gasification chamber 33 of the gasification furnace body 1 through the air inlet pipe, an air inlet of the upper air ring 15 is connected with a blower 29 through an air pipe 30, and an induced draft fan 28 is connected with an air outlet of the air preheater 25 through an air channel. The blower 29 feeds preheated air into the gasification chamber 33 through the upwind ring 15 and downwind ring 11. The burned flue gas in the gasification chamber 33 is heated by water in the heat exchanger, then passes through the waste heat recoverer 24 to preheat cold water or return water, then passes through the air preheater 25 to preheat air before entering the gasification furnace body 1, and finally is discharged into the chimney 31 through the induced draft fan 28.
Claims (7)
1. A whole-package straw gasification combustion furnace comprises: gasification furnace body (1), ash chamber (2), grate supporting beam (3), grate vertical scroll (8), bearing frame (9), grate gear (10), rotary grate (14), charge door (16), fuel conveyer (17), heat exchanger (18), waste heat recoverer (24), air heater (25) and drive mechanism, gasification furnace body (1) be equipped with charge door (16), charge door (16) are connected with fuel conveyer (17), heat exchanger is equipped with to gasification furnace body (1) top, heat exchanger (18) are connected with waste heat recoverer (24) through tobacco pipe (32), waste heat recoverer (24) are connected with air heater (25) of below, the flue gas of air heater (25) is discharged into chimney (31) through draught fan (28), its characterized in that: an ash chamber (2) is arranged below the gasification furnace body (1), a grate supporting beam (3) is arranged above the ash chamber (2), a grate vertical shaft (8) is fixedly arranged on the grate supporting beam (3) through a bearing seat (9), a grate gear (10) and a rotary grate (14) are arranged above the grate vertical shaft (8), the rotary grate (14) is positioned above the grate gear (10), the grate vertical shaft (8) is driven to rotate through a transmission mechanism, a lower air ring (11) is arranged on the outer side below the gasification furnace body (1), an air inlet pipe (12) is arranged on the inner side of the lower air ring (11), the inner cavity of the lower air ring (11) is communicated with the lower part of the rotary grate (14) of the gasification furnace body (1) through the air inlet pipe (12), and the air inlet of the lower air ring (11) is connected with an air blower (29) through an air pipe (; an upper air ring (15) is arranged on the outer side above the gasification furnace body (1), an air inlet pipe is arranged on the inner side of the upper air ring (15), the inner cavity of the upper air ring (15) is communicated with a gasification chamber (33) of the gasification furnace body (1) through the air inlet pipe, and an air inlet of the upper air ring (15) is connected with a blower (29) through an air pipe (30).
2. The whole straw gasification combustion furnace as claimed in claim 1, wherein: the rotary grate (14) comprises a shaft sleeve (34), supporting beams (35), a lower disc (36), a top disc (37) and disc holes (38), the shaft sleeve (34) is fixedly connected with a grate vertical shaft (8) through a single key, the top disc (37) is welded at the top end of the shaft sleeve (34), 3-10 layers of the supporting beams (35) are welded on the outer side of the shaft sleeve below the top disc (37), the lower disc (36) is welded above the supporting beams (35), the lower disc (36) is annular, the lower disc (36) can be set to be 3-10 layers and is arranged from small to large and is tower-shaped, and the disc holes (38) are uniformly distributed on the top disc (37) and the lower disc (36).
3. The whole straw gasification combustion furnace as claimed in claim 1, wherein: the heat exchanger (18) comprises: the boiler comprises a lower boiler barrel (19), an upper boiler barrel (20) and a convection tube bundle (21), wherein the lower boiler barrel is arranged below the heat exchanger, the upper boiler barrel is arranged above the heat exchanger, the lower boiler barrel is connected with the upper boiler barrel through the convection tube bundle, a water inlet (22) is formed in the bottom end of the lower boiler barrel, and a water outlet (23) is formed in the upper end of the upper boiler barrel.
4. The whole straw gasification combustion furnace as claimed in claim 1, wherein: the heat exchanger can also be a steam exchanger, a hot air exchanger and a medium oil exchanger.
5. The whole straw gasification combustion furnace as claimed in claim 1, wherein: the transmission mechanism includes: the gasification furnace comprises an external speed reducer (4), an internal speed reducer (6), a transmission shaft (5), a grate vertical shaft (8) and a grate gear (10), wherein the grate vertical shaft (8) below a rotary grate (14) is provided with the grate gear (10), an internal speed reducer (6) is fixedly arranged on a grate supporting cross beam (3), the output shaft of the internal speed reducer (6) is provided with a speed reducer gear (7), the external side below the gasification furnace body (1) is provided with the external speed reducer (4), the external speed reducer (4) is connected with the input shaft of the internal speed reducer (6) through the transmission shaft (5), the speed reducer gear (7) is in meshing transmission with the grate gear (10), the speed reducer gear (7) on the output shaft of the internal speed reducer (6) drives the grate gear (10) on the grate vertical shaft (8), and the grate.
6. The whole straw gasification combustion furnace as claimed in claim 1, wherein: the transmission mechanism includes: the rotary grate comprises a grate vertical shaft (8), an outer speed reducer (4), a speed reducer chain wheel (40), a chain (41) and a grate chain wheel (42), wherein the grate vertical shaft (8) below the rotary grate (14) is provided with the grate chain wheel (42), the outer side below the gasification furnace body (1) is provided with the outer speed reducer (4), the speed reducer chain wheel (40) is arranged on an output shaft of the outer speed reducer (4), the speed reducer chain wheel (40) and the grate chain wheel (42) are connected through the chain (41) for transmission, and the grate vertical shaft drives the rotary grate to rotate.
7. The whole straw gasification combustion furnace as claimed in claim 1, wherein: and a furnace door (13) is arranged outside the gasification furnace body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921054042.8U CN210165363U (en) | 2019-07-08 | 2019-07-08 | Whole-package straw gasification combustion furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921054042.8U CN210165363U (en) | 2019-07-08 | 2019-07-08 | Whole-package straw gasification combustion furnace |
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| Publication Number | Publication Date |
|---|---|
| CN210165363U true CN210165363U (en) | 2020-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921054042.8U Active CN210165363U (en) | 2019-07-08 | 2019-07-08 | Whole-package straw gasification combustion furnace |
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| Country | Link |
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| CN (1) | CN210165363U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555870A (en) * | 2020-10-21 | 2021-03-26 | 浙江大学 | Straw gasification combustion-heat energy grain drying coupling technology for heavy metal pollution farmland restoration |
| CN113503533A (en) * | 2021-07-30 | 2021-10-15 | 赣州市怡辰宏焰能源科技有限公司 | Rotary grate type biomass gasification furnace |
-
2019
- 2019-07-08 CN CN201921054042.8U patent/CN210165363U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555870A (en) * | 2020-10-21 | 2021-03-26 | 浙江大学 | Straw gasification combustion-heat energy grain drying coupling technology for heavy metal pollution farmland restoration |
| CN113503533A (en) * | 2021-07-30 | 2021-10-15 | 赣州市怡辰宏焰能源科技有限公司 | Rotary grate type biomass gasification furnace |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220622 Address after: 152000 forestry machinery factory in Beilin District, Suihua City, Heilongjiang Province (in the hospital) Patentee after: Suihua Boyuan Boiler Manufacturing Co.,Ltd. Address before: Room 705, unit 3, TV Station family building, Hongqi South Road, Beilin District, Suihua City, Heilongjiang Province 152000 Patentee before: Zhu Zeyu |
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| TR01 | Transfer of patent right |