CN105775452A - Powder feeding method - Google Patents
Powder feeding method Download PDFInfo
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- CN105775452A CN105775452A CN201610118459.0A CN201610118459A CN105775452A CN 105775452 A CN105775452 A CN 105775452A CN 201610118459 A CN201610118459 A CN 201610118459A CN 105775452 A CN105775452 A CN 105775452A
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- CN
- China
- Prior art keywords
- powder
- powder body
- gas
- cabin
- feeding
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/54—Large containers characterised by means facilitating filling or emptying
- B65D88/72—Fluidising devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Air Transport Of Granular Materials (AREA)
Abstract
The invention relates to a powder feeding method. The powder feeding method comprises the following steps that (1) after powder enters a powder bin, fluidization gas which is controlled by an independent control gas circuit is guided into the powder bin from different heights of the powder bin, so that the powder is sufficiently fluidified; (2) the sufficiently-fluidified powder flows out of the powder bin evenly and enters a volumetric quantitative delivery device till the volumetric quantitative delivery device is filled with the powder, the volumetric quantitative delivery device delivers the powder quantitatively, and the powder delivered by the volumetric quantitative delivery device is evenly fine classified again; and (3) the powder which is evenly fine classified again is mixed with delivery gas and then is delivered into an external delivery pipeline through a Venturi ejection method. By the adoption of the powder feeding method, the effect that the powder continuously and stably enters the external delivery pipeline can be guaranteed.
Description
Technical field
The present invention relates to a kind of method of feeding, particularly to a kind of powder body method of feeding.
Background technology
The powder body method of feeding adopted in prior art enters at powder body often occurs that powder density is uneven before conveyer device and the problem such as mobility is not good, and then make powder body can not enter outer carrier pipe road by continuous-stable, or in feeder process, produce doses fluctuation and damage downstream process.
Summary of the invention
For the problems referred to above, it is an object of the invention to provide a kind of powder body method of feeding being able to ensure that powder body continuous-stable enters outer carrier pipe road.
For realizing above-mentioned technical purpose, the present invention takes techniques below scheme: a kind of powder body method of feeding, comprising the following steps: 1) powder body enters after powder cabin, from the differing heights of powder cabin, passes in powder cabin by individually controlling fluidizing gas that gas circuit controls so that powder body fully fluidizes；2) fully powder body after fluidisation flows out powder cabin equably, enters and full positive displacement quantitative conveyer device, and powder body is carried by positive displacement quantitative conveyer device quantitatively, and the powder body after positive displacement quantitative conveyer device is quantitatively carried carries out uniform subdivision again；3) method utilizing venturi injection, delivers into outer carrier pipe road after being mixed with conveying gas by the powder body after uniform subdivision again.
Described step 1) fluidization gas of each independent control gas circuit is adjusted all in accordance with the granularity of powder body, true density, viscosity and moisture, detailed process is: when the granularity of powder body, true density, viscosity and moisture value increase, and tunes up fluidization gas to ensure fluid effect；When the granularity of powder body, true density, viscosity and moisture value reduce, turn fluidization gas down to avoid excessive fluidisation, cause powder body to take out of；When powder cabin local has powder body accumulation flowing smooth, local tunes up fluidization gas.
Described step 1) air pressure of each independent control gas circuit is all at below 0.2MPa.
Described fluidizing gas adopts air or noble gas.
Due to the fact that and take above technical scheme, it has the advantage that 1, due to the fact that the fluidizing gas first passed into from the differing heights of powder cabin to powder cabin by individually controlling gas circuit control, powder body is fully fluidized, then the powder body after fully fluidisation is quantitatively carried, quickly carry after finally the powder body of quantitatively conveying being carried out uniform subdivision, therefore, it is possible to guarantee the entrance outer carrier pipe road of powder body continuous-stable.2, due to the fact that and regulate fluidization gas according to the granularity of powder body, true density, viscosity and moisture, therefore further ensuring powder body can fully fluidize, and further ensure that powder body can enter outer carrier pipe road by continuous-stable.In the cost of the present invention supply that can be widely applied to various powder body low, easy to operate.
Detailed description of the invention
By the examples below the present invention is described in detail.
The powder body method of feeding of the present invention, comprises the following steps:
1, after powder body enters powder cabin, pass into by individually controlling the fluidizing gas that gas circuit controls from the differing heights of powder cabin to powder cabin, the air pressure of each independent control gas circuit is all at below 0.2MPa, the fluidization gas of each independent control gas circuit is adjusted all in accordance with the granularity of powder body, true density, viscosity and moisture, so that powder body fully fluidizes；
2, the powder body after fully fluidizing flows out powder cabin equably, enter and full positive displacement quantitative conveyer device, powder body is quantitatively carried by positive displacement quantitative conveyer device, and the powder body after positive displacement quantitative conveyer device is quantitatively carried carries out uniform subdivision again, to reduce the fluctuation of instantaneous feed quantity further；
3, the method utilizing venturi injection, quickly delivers into outer carrier pipe road after being mixed with conveying gas by the powder body after uniform subdivision again.
In a preferred embodiment, the fluidization gas of each independent control gas circuit is adjusted all in accordance with the granularity of powder body, true density, viscosity and moisture, detailed process is: when the granularity of powder body, true density, viscosity and moisture value increase, and tunes up fluidization gas to ensure fluid effect；When the granularity of powder body, true density, viscosity and moisture value reduce, turn fluidization gas down to avoid excessive fluidisation, cause powder body to take out of；When powder cabin local has powder body accumulation flowing smooth, local tunes up fluidization gas.
In a preferred embodiment, fluidizing gas can adopt air or noble gas.
Above-described embodiment is merely to illustrate the present invention, and wherein the enforcement step etc. of each method all can be varied from, every equivalents carried out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (4)
1. a powder body method of feeding, it is characterised in that comprise the following steps:
1) powder body enters after powder cabin, from the differing heights of powder cabin, passes into by individually controlling fluidizing gas that gas circuit controls so that powder body fully fluidizes in powder cabin；
2) fully powder body after fluidisation flows out powder cabin equably, enters and full positive displacement quantitative conveyer device, and powder body is carried by positive displacement quantitative conveyer device quantitatively, and the powder body after positive displacement quantitative conveyer device is quantitatively carried carries out uniform subdivision again；
3) method utilizing venturi injection, delivers into outer carrier pipe road after being mixed with conveying gas by the powder body after uniform subdivision again.
2. a kind of powder body method of feeding as claimed in claim 1, it is characterized in that, described step 1) fluidization gas of each independent control gas circuit is adjusted all in accordance with the granularity of powder body, true density, viscosity and moisture, detailed process is: when the granularity of powder body, true density, viscosity and moisture value increase, and tunes up fluidization gas to ensure fluid effect；When the granularity of powder body, true density, viscosity and moisture value reduce, turn fluidization gas down to avoid excessive fluidisation, cause powder body to take out of；When powder cabin local has powder body accumulation flowing smooth, local tunes up fluidization gas.
3. as claimed in claim 1 a kind of powder body method of feeding, it is characterised in that described step 1) air pressure of each independent control gas circuit is all at below 0.2MPa.
4. a kind of powder body method of feeding as described in claim 1 or 2 or 3, it is characterised in that described fluidizing gas adopts air or noble gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610118459.0A CN105775452B (en) | 2016-03-02 | 2016-03-02 | A kind of powder method of feeding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610118459.0A CN105775452B (en) | 2016-03-02 | 2016-03-02 | A kind of powder method of feeding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105775452A true CN105775452A (en) | 2016-07-20 |
| CN105775452B CN105775452B (en) | 2018-05-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610118459.0A Active CN105775452B (en) | 2016-03-02 | 2016-03-02 | A kind of powder method of feeding |
Country Status (1)
| Country | Link |
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| CN (1) | CN105775452B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB887309A (en) * | 1959-08-05 | 1962-01-17 | Simon Ltd Henry | Improved method of and apparatus for the conveying of powdered or pulverulent dry material in bulk |
| CN201175647Y (en) * | 2008-04-18 | 2009-01-07 | 河北科技大学 | Dry type inside and outside cycle controllable fluidized bed desulphurization device |
| CN201458374U (en) * | 2009-06-10 | 2010-05-12 | 煤炭科学研究总院 | Combined coal powder storage and supply system |
| CN201458098U (en) * | 2009-06-10 | 2010-05-12 | 煤炭科学研究总院 | Pulverized coal warehouse |
| CN202191850U (en) * | 2011-08-04 | 2012-04-18 | 淮北重科矿山机器有限公司 | Device for automatically dosing medicament in preparation for medicament solution |
| CN102966967A (en) * | 2012-12-03 | 2013-03-13 | 煤炭科学研究总院 | Combined pulverized coal storage and supplying device |
| CN202993181U (en) * | 2012-11-21 | 2013-06-12 | 中国东方电气集团有限公司 | System for avoiding boiler contamination of external bed type dual fluidized beds |
| CN104791829A (en) * | 2015-04-14 | 2015-07-22 | 煤炭科学技术研究院有限公司 | Pulverized coal storing and supplying system |
-
2016
- 2016-03-02 CN CN201610118459.0A patent/CN105775452B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB887309A (en) * | 1959-08-05 | 1962-01-17 | Simon Ltd Henry | Improved method of and apparatus for the conveying of powdered or pulverulent dry material in bulk |
| CN201175647Y (en) * | 2008-04-18 | 2009-01-07 | 河北科技大学 | Dry type inside and outside cycle controllable fluidized bed desulphurization device |
| CN201458374U (en) * | 2009-06-10 | 2010-05-12 | 煤炭科学研究总院 | Combined coal powder storage and supply system |
| CN201458098U (en) * | 2009-06-10 | 2010-05-12 | 煤炭科学研究总院 | Pulverized coal warehouse |
| CN202191850U (en) * | 2011-08-04 | 2012-04-18 | 淮北重科矿山机器有限公司 | Device for automatically dosing medicament in preparation for medicament solution |
| CN202993181U (en) * | 2012-11-21 | 2013-06-12 | 中国东方电气集团有限公司 | System for avoiding boiler contamination of external bed type dual fluidized beds |
| CN102966967A (en) * | 2012-12-03 | 2013-03-13 | 煤炭科学研究总院 | Combined pulverized coal storage and supplying device |
| CN104791829A (en) * | 2015-04-14 | 2015-07-22 | 煤炭科学技术研究院有限公司 | Pulverized coal storing and supplying system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105775452B (en) | 2018-05-25 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170124 Address after: Beijing Caiyu Economic Development Zone 102606 Beijing city Daxing District Long Yu Caiyu Town Street No. 5 Applicant after: CHINA COAL RESEARCH INSTITUTE (CCRI) ENERGY SAVING TECHNOLOGY CO.,LTD. Address before: 100013 Beijing Youth Ditch Road, building No. 5, No. 527, Chaoyang District Applicant before: CCTEG CHINA COAL Research Institute |
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Address after: 102606 No.5, Yulong Street, Caiyu Economic Development Zone, Caiyu Town, Daxing District, Beijing Patentee after: Beijing Tiandi Sunac Technology Co.,Ltd. Address before: 102606 No.5, Yulong Street, Caiyu Economic Development Zone, Caiyu Town, Daxing District, Beijing Patentee before: CHINA COAL RESEARCH INSTITUTE (CCRI) ENERGY SAVING TECHNOLOGY CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder |