CN115727345A - Biomass boiler feeding system - Google Patents
Biomass boiler feeding system Download PDFInfo
- Publication number
- CN115727345A CN115727345A CN202211480336.3A CN202211480336A CN115727345A CN 115727345 A CN115727345 A CN 115727345A CN 202211480336 A CN202211480336 A CN 202211480336A CN 115727345 A CN115727345 A CN 115727345A
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- Prior art keywords
- water
- tank
- air guide
- communicated
- guide shell
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- 239000002028 Biomass Substances 0.000 title claims abstract description 38
- 239000000498 cooling water Substances 0.000 claims abstract description 24
- 239000000446 fuel Substances 0.000 claims abstract description 21
- 238000007599 discharging Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 93
- 238000001816 cooling Methods 0.000 claims description 20
- 239000008234 soft water Substances 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 5
- 238000004064 recycling Methods 0.000 abstract 1
- 230000002269 spontaneous effect Effects 0.000 abstract 1
- 238000005496 tempering Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
Images
Classifications
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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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- Solid-Fuel Combustion (AREA)
Abstract
A biomass boiler feed system comprising: the feeding end of the continuous feeder is communicated with the discharge hole of the biomass fuel feeding device, and the discharge end of the continuous feeder is communicated with the feeding hole of the biomass boiler; the continuous feeder includes: the spiral feeding device is sleeved with the air guide shell, the top of the spiral feeding device is provided with an electric driving device, a feeding hole is formed in the side portion of the upper end of the air guide shell, a discharging hole is formed in the bottom of the air guide shell, a plurality of air guide grooves are formed in the inner circumferential wall of the air guide shell in the vertical direction, and the spiral feeding device is provided with a cooling water circulation channel. The design not only can effectively reduce the feeding temperature and avoid the spontaneous combustion of fuel, but also can improve the combustion efficiency and realize the recycling of energy.
Description
Technical Field
The invention relates to a biomass boiler feeding system, which is particularly suitable for optimizing a feeding process and avoiding tempering of biomass fuel in a feeding process.
Background
With the further improvement of the requirements on energy conservation and emission reduction, the demand on energy utilization of biomass waste is more and more common, and the principle of the existing biomass boiler is that after the biomass waste is smashed into small particles, the small particles are sent into the biomass boiler through a conveying device to be combusted, and water is heated into steam to be further utilized.
However, in actual production, the equipment often has some problems, which affect the production efficiency and the production reliability. The automatic flow is usually adopted from feeding to production of the existing biomass boiler, the biomass fuel is fed into a feed inlet of the boiler in a vertical feeding cylinder in a sectional type opening and closing mode, and the purpose of doing so is to prevent hot gas in the boiler from entering a feeding system and enable the fuel to be subjected to tempering combustion in a feeding stage.
However, the effect of the existing devices is not ideal:
1. the feeding door of switching has certainly blockked the entering of hot-air, but thermal transmission still exists, and when the heat constantly accumulated, the temperature of a feeding section of thick bamboo can continuously rise, and biomass fuel still can take place the tempering phenomenon under the high temperature environment in a feeding section of thick bamboo, damages equipment, causes the potential safety hazard.
2. The sectional type opening and closing mode is that after fuel is accumulated to a certain amount, the upper door is closed, the lower door is opened for feeding, and then the fuel is conveyed to the combustion center of the boiler by a conveying device in the boiler, so that feeding discontinuity is caused, and further, the problem that part of fuel is not sufficiently combusted in the boiler is solved, and the energy absorption and utilization are not facilitated.
Disclosure of Invention
The invention aims to overcome the problem of fuel tempering in the prior art, and provides a biomass boiler feeding system capable of avoiding fuel tempering.
In order to achieve the above purpose, the technical solution of the invention is as follows:
a biomass boiler feed system, comprising: the feeding end of the continuous feeder is communicated with the discharge hole of the biomass fuel feeding device, and the discharge end of the continuous feeder is communicated with the feeding hole of the biomass boiler;
the continuous feeder includes: the spiral feeding device is sleeved with the air guide shell, the top of the spiral feeding device is provided with an electric driving device, a feeding hole is formed in the side portion of the upper end of the air guide shell, a discharging hole is formed in the bottom of the air guide shell, a plurality of air guide grooves are formed in the inner circumferential wall of the air guide shell in the vertical direction, and the spiral feeding device is provided with a cooling water circulation channel.
And a cooling coil is sleeved at the lower end of the outer wall of the air guide shell and is welded and fixed on the air guide shell.
The water inlet end of the cooling coil is communicated with the water outlet pipeline of the water pump, and the water outlet end of the cooling coil is communicated with the second soft water tank.
A water supply tank is arranged at the top of the air guide shell, and the top of the water supply tank is in rotating fit with the rotating shaft through a bearing;
the feed tank divide into the case of intaking on upper strata and the return water tank of lower floor, it all passes through the sealed cooperation of sealing washer with spiral feeder's pivot to intake case and return water tank, the water inlet that the case was seted up through the pivot communicates with each other with cooling water circulation channel, cooling water circulation channel communicates with each other with return water tank through the return water mouth.
The water inlet interface of the water inlet tank is communicated with the water outlet pipeline of the water pump, and the water outlet interface of the water return tank is communicated with the second soft water tank.
The spiral blade is of a hollow structure, a cavity at the top of the spiral blade is communicated with a water inlet pipeline of the cooling water circulation channel in the rotating shaft, and a cavity at the bottom of the spiral blade is communicated with a return pipeline of the cooling water circulation channel in the rotating shaft.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the biomass boiler feeding system, the boiler is continuously and uniformly fed in a spiral feeding mode, so that fuel is fully combusted in the boiler, and the energy utilization rate is improved; simultaneously set up air ducting on feed arrangement, utilize the palirrhea hot-air of combustion in the furnace chamber to dry the biomass fuel on the helical blade, take away unnecessary vapor, promote the quality of fuel. Therefore, the design can effectively improve the dryness of the fuel and improve the combustion efficiency.
2. According to the biomass boiler feeding system, the cooling coil is arranged outside the air guide shell to reduce the temperature inside the continuous feeder, the cooling water circulation channel is further arranged inside the spiral feeding device to cool the continuous feeder from inside to outside, and tempering of biomass fuel due to overhigh ambient temperature is effectively avoided. Therefore, the design can effectively reduce the feeding temperature and avoid fuel tempering.
3. According to the biomass boiler feeding system, the cooling circulation of the continuous feeder is connected into the original soft water circulation of the biomass steam boiler, so that the heat absorbed by cooling is directly recycled, and the energy utilization rate is effectively improved. Therefore, the design is slightly improved on the basis of the existing water circulation, and the energy can be recycled.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a transverse sectional view of the air guide casing in fig. 1.
FIG. 3 is a cross-sectional view of the supply tank of FIG. 1.
Fig. 4 is a diagram of a thermal energy recovery circuit of the present invention.
In the figure: the device comprises a continuous feeder 1, an air guide shell 11, an air guide groove 12, a feeding hole 13, a discharging hole 14, a cooling coil 15, a spiral feeding device 2, a rotating shaft 21, a spiral blade 22, a cooling water circulation channel 23, a water supply tank 3, a water inlet tank 31, a water return tank 32, a bearing 33, a water pump 4, a second soft water tank 5, a first soft water tank 6 and a second-stage economizer 7.
Detailed Description
The invention is described in further detail below with reference to the figures and the detailed description of the invention.
Referring to fig. 1-4, a biomass boiler feed system comprises: the feeding end of the continuous feeder 1 is communicated with the discharge hole of the biomass fuel feeding device, and the discharge end of the continuous feeder 1 is communicated with the feed hole of the biomass boiler;
the continuous feeder 1 comprises: the spiral feeding device comprises a spiral feeding device 2 and an air guide shell 11, wherein the air guide shell 11 is sleeved outside the spiral feeding device 2, an electric driving device is arranged at the top of the spiral feeding device 2, a feeding hole 13 is formed in the side portion of the upper end of the air guide shell 11, a discharging hole 14 is formed in the bottom of the air guide shell 11, a plurality of air guide grooves 12 are formed in the inner circumferential wall of the air guide shell 11 in the vertical direction, and a cooling water circulation channel 23 is formed in the spiral feeding device 2.
The outer wall lower extreme cover of air guide shell 11 is equipped with cooling coil 13, cooling coil 13 welded fastening is on air guide shell 11.
The water inlet end of the cooling coil 13 is communicated with the water outlet pipeline of the water pump 4, and the water outlet end of the cooling coil 13 is communicated with the second soft water tank 5.
The top of the air guide shell 11 is provided with a water supply tank 3, and the top of the water supply tank 3 is in rotary fit with the rotating shaft 21 through a bearing 33;
the feed tank 3 divide into the water inlet tank 31 on upper strata and the return water tank 32 of lower floor, water inlet tank 31 and return water tank 32 are all through the sealed cooperation of sealing washer and spiral feeder 2's pivot 21, the water inlet that water inlet tank 31 was seted up through pivot 21 communicates with each other with cooling water circulation channel 23, cooling water circulation channel 23 communicates with each other with return water tank 32 through the return water mouth.
The water inlet interface of the water inlet tank 31 is communicated with the water outlet pipeline of the water pump 4, and the water outlet interface of the water return tank 32 is communicated with the second soft water tank 5.
The spiral blade 22 is of a hollow structure, a cavity at the top of the spiral blade 22 is communicated with a water inlet pipeline of the cooling water circulation channel 23 in the rotating shaft, and a cavity at the bottom of the spiral blade 22 is communicated with a return pipeline of the cooling water circulation channel 23 in the rotating shaft.
The principle of the invention is illustrated as follows:
referring to fig. 4, the design utilizes the original water circulation system of the steam boiler, a bypass water pipe is connected from the water pump of the first soft water tank 7 to carry out water circulation cooling at the feed end of the boiler, so that the ambient temperature at the feed end is effectively reduced, meanwhile, the water absorbing heat is recycled to the second-stage soft water tank 5, the energy is recycled, and the cooling water returns to the water circulation at the early stage of the steam boiler; when the steam boiler needs to be supplemented with water, the water is directly extracted from the secondary soft water tank to be deoxidized for subsequent utilization.
Example 1:
a biomass boiler feed system comprising: the feeding end of the continuous feeder 1 is communicated with the discharge hole of the biomass fuel feeding device, and the discharge end of the continuous feeder 1 is communicated with the feed hole of the biomass boiler; the continuous feeder 1 comprises: the spiral feeding device comprises a spiral feeding device 2 and an air guide shell 11, wherein the air guide shell 11 is sleeved outside the spiral feeding device 2, an electric driving device is arranged at the top of the spiral feeding device 2, a feeding hole 13 is formed in the side portion of the upper end of the air guide shell 11, a discharging hole 14 is formed in the bottom of the air guide shell 11, a plurality of air guide grooves 12 are formed in the inner circumferential wall of the air guide shell 11 in the vertical direction, and a cooling water circulation channel 23 is formed in the spiral feeding device 2.
The top of the air guide shell 11 is provided with a water supply tank 3, and the top of the water supply tank 3 is in rotary fit with the rotating shaft 21 through a bearing 33;
the feed tank 3 divide into the water inlet tank 31 on upper strata and the return water tank 32 of lower floor, water inlet tank 31 and return water tank 32 are all through the sealed cooperation of sealing washer and spiral feeder 2's pivot 21, the water inlet that water inlet tank 31 was seted up through pivot 21 communicates with each other with cooling water circulation channel 23, cooling water circulation channel 23 communicates with each other with return water tank 32 through the return water mouth.
The water inlet interface of the water inlet tank 31 is communicated with the water outlet pipeline of the water pump 4, and the water outlet interface of the water return tank 32 is communicated with the second soft water tank 5.
Example 2:
example 2 is substantially the same as example 1 except that:
the spiral blade 22 is of a hollow structure, a cavity at the top of the spiral blade 22 is communicated with a water inlet pipeline of the cooling water circulation channel 23 in the rotating shaft, and a cavity at the bottom of the spiral blade 22 is communicated with a return pipeline of the cooling water circulation channel 23 in the rotating shaft.
Example 3:
example 3 is substantially the same as example 2, except that:
the outer wall lower extreme cover of air guide shell 11 is equipped with cooling coil 13, cooling coil 13 welded fastening is on air guide shell 11.
The water inlet end of the cooling coil 13 is communicated with the water outlet pipeline of the water pump 4, and the water outlet end of the cooling coil 13 is communicated with the second soft water tank 5.
Claims (6)
1. A biomass boiler feed system which characterized in that:
the energy recovery feed system comprises: the feeding end of the continuous feeder (1) is communicated with the discharging port of the biomass fuel feeding device, and the discharging end of the continuous feeder (1) is communicated with the feeding port of the biomass boiler;
the continuous feeder (1) comprises: the spiral feeding device comprises a spiral feeding device (2) and an air guide shell (11), wherein the air guide shell (11) is sleeved outside the spiral feeding device (2), an electric driving device is arranged at the top of the spiral feeding device (2), a feeding hole (13) is formed in the side portion of the upper end of the air guide shell (11), a discharging hole (14) is formed in the bottom of the air guide shell (11), a plurality of air guide grooves (12) are formed in the inner circumferential wall of the air guide shell (11) in the vertical direction, and a cooling water circulation channel (23) is formed in the spiral feeding device (2).
2. The biomass boiler feed system of claim 1, wherein:
the outer wall lower pot head of wind-guiding casing (11) is equipped with cooling coil (15), cooling coil (15) welded fastening is on wind-guiding casing (11).
3. The biomass boiler feed system of claim 2, wherein:
the water inlet end of the cooling coil (13) is communicated with the water outlet pipeline of the water pump (4), and the water outlet end of the cooling coil (13) is communicated with the second soft water tank (5).
4. A biomass boiler feed system according to claim 1, 2 or 3, characterized in that:
the top of the air guide shell (11) is provided with a water supply tank (3), and the top of the water supply tank (3) is in rotating fit with the rotating shaft (21) through a bearing (33);
the feed tank (3) divide into the return water tank (32) of the water tank (31) of intaking on upper strata and lower floor, it all seals up the cooperation with pivot (21) of spiral feeder (2) through the sealing washer to intake tank (31) and return water tank (32), it communicates with each other with cooling water circulation passageway (23) to intake the water inlet that tank (31) were seted up through pivot (21), cooling water circulation passageway (23) communicate with each other with return water tank (32) through the return water mouth.
5. A biomass boiler feed system according to claim 4, wherein:
the water inlet interface of the water inlet tank (31) is communicated with the water outlet pipeline of the water pump (4), and the water outlet interface of the water return tank (32) is communicated with the second soft water tank (5).
6. The biomass boiler feed system of claim 4, wherein:
the spiral blade (22) is of a hollow structure, a cavity at the top of the spiral blade (22) is communicated with a water inlet pipeline of the cooling water circulation channel (23) in the rotating shaft, and a cavity at the bottom of the spiral blade (22) is communicated with a return pipeline of the cooling water circulation channel (23) in the rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211480336.3A CN115727345B (en) | 2022-11-24 | 2022-11-24 | Biomass boiler feed system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211480336.3A CN115727345B (en) | 2022-11-24 | 2022-11-24 | Biomass boiler feed system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115727345A true CN115727345A (en) | 2023-03-03 |
| CN115727345B CN115727345B (en) | 2024-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211480336.3A Active CN115727345B (en) | 2022-11-24 | 2022-11-24 | Biomass boiler feed system |
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| Country | Link |
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| CN (1) | CN115727345B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101210679A (en) * | 2006-12-25 | 2008-07-02 | 上海环保工程成套有限公司 | Gyration type sludge desiccation material-feeding device for sludge burning furnace |
| CN101975388A (en) * | 2010-10-15 | 2011-02-16 | 华南理工大学 | Biomass boiler system capable of saving energy and reducing emission |
| KR20110038433A (en) * | 2009-10-08 | 2011-04-14 | (주)한강에너지산업 | Boiler for pellet fuel |
| CN202186892U (en) * | 2011-09-26 | 2012-04-11 | 昆明理工大学 | Heat exchanger device for novel circulation fluidized bed for decomposing phosphogypsum |
| CN104110950A (en) * | 2014-07-24 | 2014-10-22 | 山西大学 | Wet material drying device |
| CN204712391U (en) * | 2015-06-25 | 2015-10-21 | 舟山市第一塑料机械有限公司 | A kind of center cooling screw |
| JP2019076876A (en) * | 2017-10-27 | 2019-05-23 | 三菱日立パワーシステムズ株式会社 | Solid fuel supply pipe and crushing device, and solid fuel supply method |
| CN211003647U (en) * | 2019-11-30 | 2020-07-14 | 南京威普粉体工程有限公司 | High-temperature spiral feeding machine of kiln for producing glass fiber |
-
2022
- 2022-11-24 CN CN202211480336.3A patent/CN115727345B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101210679A (en) * | 2006-12-25 | 2008-07-02 | 上海环保工程成套有限公司 | Gyration type sludge desiccation material-feeding device for sludge burning furnace |
| KR20110038433A (en) * | 2009-10-08 | 2011-04-14 | (주)한강에너지산업 | Boiler for pellet fuel |
| CN101975388A (en) * | 2010-10-15 | 2011-02-16 | 华南理工大学 | Biomass boiler system capable of saving energy and reducing emission |
| CN202186892U (en) * | 2011-09-26 | 2012-04-11 | 昆明理工大学 | Heat exchanger device for novel circulation fluidized bed for decomposing phosphogypsum |
| CN104110950A (en) * | 2014-07-24 | 2014-10-22 | 山西大学 | Wet material drying device |
| CN204712391U (en) * | 2015-06-25 | 2015-10-21 | 舟山市第一塑料机械有限公司 | A kind of center cooling screw |
| JP2019076876A (en) * | 2017-10-27 | 2019-05-23 | 三菱日立パワーシステムズ株式会社 | Solid fuel supply pipe and crushing device, and solid fuel supply method |
| CN211003647U (en) * | 2019-11-30 | 2020-07-14 | 南京威普粉体工程有限公司 | High-temperature spiral feeding machine of kiln for producing glass fiber |
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| CN115727345B (en) | 2024-04-09 |
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