CN210014350U - Injection type living beings feeder - Google Patents
Injection type living beings feeder Download PDFInfo
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- CN210014350U CN210014350U CN201920922805.XU CN201920922805U CN210014350U CN 210014350 U CN210014350 U CN 210014350U CN 201920922805 U CN201920922805 U CN 201920922805U CN 210014350 U CN210014350 U CN 210014350U
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Abstract
The utility model provides an injection formula living beings feeder. The problems of jamming, blockage, high-temperature flue gas backflow and the like in the conventional biomass feeding system are mainly solved. The environment-friendly bulk materials such as rice hulls, biomass briquettes and biomass particles can be selected as the materials of the feeding system, the biomass bulk materials enter the feeding device from a feeding port above the inner sleeve (1), air or nitrogen enters the feeding device through the gas inlet section (5), the negative pressure at the throat is changed by adjusting the gas flow and the pressure head of the gas inlet section (5), the pressure difference between the biomass feeding port and the throat is adjustable, and stable and continuous feeding of the biomass under different furnace internal pressure conditions is facilitated.
Description
Technical Field
The utility model relates to an injection formula living beings feeder.
Background
The biomass power generation technology is an energy-saving and environment-friendly advanced power generation technology, but the stability and the safety of a biomass feeding system always prevent the wide application of the biomass power generation technology, and at present, the biomass feeding system mainly adopts a stokehold spiral feeding system, but the system has two problems: (1) jamming and clogging of the feeding system: most biomass power generation systems require feeding continuity, and if the problems of jamming, biomass winding, blockage and the like caused by mechanical rotation occur, the working condition of a biomass incinerator or a biomass gasification furnace can fluctuate greatly and even be shut down, so that irreparable loss is caused to production; (2) high-temperature flue gas reflux: for some boilers with frequent pressure fluctuation, especially for positive pressure furnaces, if the tightness of a feeding system is poor, the phenomenon that high-temperature flue gas in the furnace flows back to the feeding system is likely to occur, so that biomass materials in the feeding system are ignited, the feeding system is burnt, and even the feeding system is exploded.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that above-mentioned prior art exists, and then provide an injection formula living beings feeder, solve the bite that exists among the present living beings feed system, block up and high temperature flue gas backward flow scheduling problem.
The utility model aims at realizing through the following technical scheme:
an injection type biomass feeding device comprises an inner sleeve and an outer sleeve, wherein the inner sleeve is used as a biomass feeding pipeline and is integrally connected with an inner straight pipe section and an inner contraction section from top to bottom, the inner straight pipe section and the inner contraction section can be directly matched with a biomass bulk material belt conveyor to complete feeding, the outer sleeve is integrally connected with a gas inlet section, an outer straight pipe section, an outer contraction section and an outer flaring section from top to bottom, the inner sleeve is inserted into the outer sleeve and is connected with an upper connector in a welding mode, the inner sleeve and the outer sleeve are coaxial, the gas inlet section comprises four gas inlets and is matched with an annular channel formed between the outer straight pipe section and the inner straight pipe section, gas can uniformly flow in the annular channel, the cone angle of the inner contraction section is smaller than that of the outer contraction section, a gradual contraction annular channel is formed, and the gas flow speed at the throat part formed at the lower end of the gradual contraction annular channel is, the outer flaring section adopts a downward gradually-expanding structure, so that the pressure loss is reduced, and the outlet of the feeder can be kept at positive pressure.
The utility model provides an injection type living beings feeder's feed method, the material of feed system can select the environmental protection bulk cargo such as rice husk, living beings briquetting, living beings granule at first, living beings bulk cargo gets into feeder from interior sleeve pipe top feed inlet, and air or nitrogen gas get into feeder through the gas inlet section, and through the gas flow and the pressure head of adjusting the gas inlet section, change throat department negative pressure size, realize that the pressure difference between living beings feed inlet and throat department is adjustable, is favorable to realizing the stable continuous feed of living beings under the different stove internal pressure conditions.
The utility model has the advantages that: through adopting the technical scheme of the utility model
1. The structure is simple and reliable, the applicability is wide, and the device is applicable to various environment-friendly bulk materials such as rice husks, biomass briquettes, biomass particles and the like.
2. The device utilizes gaseous injection principle to carry out the living beings feed, avoids the machinery that traditional living beings feed system exists to block and the material winding scheduling problem, can realize the stable continuous feed of living beings bulk cargo, improves feed system's life and operation safety.
3. The utility model discloses not only be applicable to little negative pressure or ordinary pressure biomass boiler, but also be applicable to the malleation biomass boiler of feeder exit pressure within 5KPa, can effectively avoid the high temperature flue gas to temper.
Drawings
Fig. 1 is a sectional view of an injection type biomass feeding device.
Fig. 2 is a sectional view of an inner sleeve of an injection type biomass feeding device.
Fig. 3 is a sectional view of an outer sleeve of an injection type biomass feeding device.
Fig. 4 is a top view of an injection biomass feeding device.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings: the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation is given, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1-4, the injection type biomass feeding device according to this embodiment includes an inner sleeve 1 and an outer sleeve 2, where the inner sleeve 1 is used as a biomass feeding pipeline and is formed by integrally connecting an inner straight pipe section 3 and an inner contraction section 4 from top to bottom, and can be directly matched with a biomass bulk material belt conveyor to complete feeding, the outer sleeve 2 is formed by integrally connecting a gas inlet section 5, an outer straight pipe section 6, an outer contraction section 7 and an outer expansion section 8 from top to bottom, the inner sleeve 1 is inserted into the outer sleeve 2 and connected at an upper interface by welding, and the inner sleeve 1 and the outer sleeve 2 are coaxial, the gas inlet section 5 includes four gas inlets and is matched with an annular channel formed between the outer straight pipe section 6 and the inner straight pipe section 3, so that gas can uniformly flow in the annular channel, the cone angle of the inner contraction section 4 is smaller than that of the outer contraction section 7 to form a tapered annular channel, so that gas flows more uniformly, the gas flow rate can be increased, the gas flow rate at the throat part formed at the lower end of the tapered annular channel is higher, the throat part can form larger negative pressure according to Bernoulli principle, larger pressure difference is formed between the throat part and a biomass feed port, the phenomenon of fluffy material in the inner sleeve 1 of biomass is avoided, stable and continuous feeding of the biomass is facilitated, the outer expansion section 8 adopts a downward tapered structure, pressure loss is reduced, the outlet of the outer expansion section can be guaranteed to maintain positive pressure, high-temperature smoke gas backflow is avoided, and mixing of gas and materials can be effectively realized.
The utility model provides an injection type living beings feeder's feed method, at first the material of feed system can select the environmental protection bulk cargo such as rice husk, living beings briquetting, living beings granule, living beings bulk cargo gets into feeder from interior sleeve pipe 1 top feed inlet, air or nitrogen gas get into feeder through gas inlet section 5, through adjusting the gas flow and the pressure head of gas inlet section 5, change throat department negative pressure size, it is adjustable to realize the pressure difference between living beings feed inlet and throat department, be favorable to realizing living beings under the different furnace internal pressure conditions steady continuous feed, especially to the interior positive pressure condition of stove.
The above description is only the preferred embodiments of the present invention, and these embodiments are all based on the present invention, and the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (1)
1. The utility model provides an injection type living beings feeder, includes interior sleeve pipe (1) and outer tube (2), its characterized in that: the biomass bulk material feeding device is characterized in that the inner sleeve (1) is used as a biomass feeding pipeline and is composed of an inner straight pipe section (3) and an inner contraction section (4) which are integrally connected from top to bottom, the inner straight pipe section and the inner contraction section can be directly matched with a biomass bulk material belt conveyor to complete feeding, the outer sleeve (2) is composed of a gas inlet section (5), an outer straight pipe section (6), an outer contraction section (7) and an outer flaring section (8) which are integrally connected from top to bottom, the inner sleeve (1) is installed in the outer sleeve (2) in an insertion mode and connected with an upper connector in a welding mode, the inner sleeve (1) and the outer sleeve (2) are coaxial, the gas inlet section (5) comprises four gas inlets and is matched with an annular channel formed between the outer straight pipe section (6) and the inner straight pipe section (3), gas can uniformly flow in the annular channel, the cone angle of the inner contraction section (4) is, the tapered annular channel is formed, so that the gas flow speed at the throat part reduced part formed at the lower end of the tapered annular channel is higher, the outer flaring section (8) adopts a downward tapered structure, the pressure loss is reduced, and the outlet of the feeder can be ensured to maintain positive pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920922805.XU CN210014350U (en) | 2019-06-19 | 2019-06-19 | Injection type living beings feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920922805.XU CN210014350U (en) | 2019-06-19 | 2019-06-19 | Injection type living beings feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210014350U true CN210014350U (en) | 2020-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201920922805.XU Active CN210014350U (en) | 2019-06-19 | 2019-06-19 | Injection type living beings feeder |
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| CN (1) | CN210014350U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145733A (en) * | 2019-06-19 | 2019-08-20 | 哈尔滨锅炉厂有限责任公司 | A kind of injection type biomass feeding apparatus and its feeding method |
| CN113773878A (en) * | 2021-09-30 | 2021-12-10 | 龙科天成(厦门)科技有限公司 | Preparation system of gasified gas fuel |
-
2019
- 2019-06-19 CN CN201920922805.XU patent/CN210014350U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145733A (en) * | 2019-06-19 | 2019-08-20 | 哈尔滨锅炉厂有限责任公司 | A kind of injection type biomass feeding apparatus and its feeding method |
| CN113773878A (en) * | 2021-09-30 | 2021-12-10 | 龙科天成(厦门)科技有限公司 | Preparation system of gasified gas fuel |
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