CN200978146Y - Air delivering and supplying instrument - Google Patents
Air delivering and supplying instrument Download PDFInfo
- Publication number
- CN200978146Y CN200978146Y CNU2006200487085U CN200620048708U CN200978146Y CN 200978146 Y CN200978146 Y CN 200978146Y CN U2006200487085 U CNU2006200487085 U CN U2006200487085U CN 200620048708 U CN200620048708 U CN 200620048708U CN 200978146 Y CN200978146 Y CN 200978146Y
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- compensation device
- air
- air compensation
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Abstract
This utility model relates to an air compensator for air transportation, which comprises the air compensator main body, a head and an ejection main pipe, wherein one end of the ejection main pipe is assembled inside the air compensator cavity; the ejection main pipe has the same diameter as that of the air compensation passage of the air compensator main body; a micro-hole ring plate distributing with even micro-holes is provided in the annular gap between the air compensator main body and the ejection main pipe, thus an air compensation cavity is formed among the air compensator main body, the micro-hole ring plate and the ejection main pipe that compensated air is distributed evenly along the circle. This utility model has the advantages of simple structure, high quality of air mixture, little loss of resistance, low exhaustion for gas carrying, large adjustable range, and avoidance of getting blocked. This utility model can be applicable to rare-phase transportation for powder materials, especially to dense-phase transportation with long distance, big injection amount and high solid/gas ratio for powder materials.
Description
Technical field
The utility model relates to the Pneumatic Conveying Technology of granular material, the making-up air device in particularly a kind of industrial powder pneumatic conveying process.
Background technology
In the powder pneumatic conveying process, in order to reduce system dynamic consumption, reduce pipe wear, prolong pipeline service life, perhaps satisfy certain technological requirement, need to adopt powder concentrated phase conveying technology.Concentrated phase is carried and is required the solid-gas ratio height, and the air-flow velocity in the pipeline is inevitable very low, just is easy to stop up, and only depends on a gas flow adjusting of cone pump to be difficult to obtain suitable transport condition, therefore must realize the conveying of powder concentrated phase by the tonifying Qi of air compensation device.
At present, the powder strength is carried has multiple structural shape with air compensation device, regulates concentrated phase air compensation device, mechanical conditioning type air compensation device, injection type air compensation device etc. as strength, and these air compensation devices all have application aborning, but merits and faults is respectively arranged.
Strength is regulated the concentrated phase air compensation device: it is to realize dense phase injection by the kinetic energy of intensified negative pressure injection, at present in, the existing application in the coal powder injection of small furnace, its injecting coal quantity maximum only is 15～18t/h.Because therefore the restriction of its negative pressure injection can not satisfy the above production requirement of big pulverized coal injection amount 80t/h.This kind strength adjusting concentrated phase air compensation device is difficult on the large-scale high pressure blast furnace to be used, and is not suitable for the coal injection system that the long distance of coal dust is carried.
The mechanical conditioning type air compensation device: this air compensation device is by a kind of coal dust motorized adjustment device, and the aperture of regulating coal outlet in the air compensation device is applied on blast furnace with the control injecting coal quantity.But the complicated in mechanical structure of this air compensation device, the manufacturing cost height after the coal outlet aperture is greater than 60%, is regulated difficulty, and the coal outlet nozzle wear is serious, and electrically-powered actuator needs frequent repair and maintenance.And drag losses is bigger than other pattern air compensation device, adopts this air compensation device to be difficult to realize the conveying of coal dust concentrated phase.
The injection type air compensation device: the principle of this air compensation device is after primary mixture enters air compensation device, high pressure carrier gas jet pipe in the air compensation device forms the injection air-flow and produces negative pressure, the kinetic energy that drive coal dust motion, coal dust rely on pressure and continuous injection air-flow by spray feed to blast furnace.This injection type air compensation device is simple in structure, also have to use this air compensation device to make injecting coal quantity reach level more than the 80t/h on big pulverized coal injection, but its constructional feature has determined to form pulsation stream easily in coal spraying pipeline, is easy to generate latch up phenomenon.
In a word, existing all kinds of strength carries air compensation device to have following shortcoming:
1. carrier gas consumes greatly, mainly is suitable for dilute phase and carries, and minority is applicable to that the air compensation device fed distance of concentrated phase conveying is little, and ability is low.
2. produce strong disturbance when supplemental air flow is mixed with primary mixture main body air-flow, perhaps area of passage changes greatly, causes drag losses bigger.
3. make-up gas flow variable range is little.
4. occur easily stopping up.
Summary of the invention
Task of the present utility model provides a kind of improved strength and carries air compensation device, and it has solved existing strength and has carried the air compensation device carrier gas to consume greatly, and drag losses is big, the little and easy blocking problem of make-up gas flow variable range.
The technical solution of the utility model is as follows:
A kind of strength is carried air compensation device, it comprises air compensation device main body, tonifying Qi air inlet pipe, end socket and sprays and be responsible for, the end that described injection is responsible for is placed in the air compensation device cavity, it is identical with the make-up gas channel diameter of air compensation device main body to spray the person in charge, the evenly densely covered finely porous micropore ring flat-plate of band is housed in the circumferential weld between the air compensation device main body and the injection person in charge, makes make-up gas along circumference well-distributed make-up gas cavity between air compensation device main body, micropore ring flat-plate and the injection person in charge, to form.
Strength of the present utility model carries that air compensation device has simple in structure, gas mixing quality height, drag losses is little, carrier gas consumes low and variable range big, do not allow susceptible to plugging characteristics, the dilute phase that not only is used for powder is carried, and is applicable to that more the concentrated phase of remote, the big winding-up amount of granular material, high solid-gas ratio is carried.
Installing micropore ring flat-plate in the circumferential weld of the utility model between the air compensation device main body and the injection person in charge, thereby between being responsible for, air compensation device main body, micropore ring flat-plate and injection form the make-up gas cavity, realize the rectangular distribution of make-up gas along circumference, overcome the impact of supplemental air flow to main fluid, help reducing drag losses, improve mixing quality.
Strength of the present utility model carries air compensation device to be specially adapted to the air-transport system of pulverized coal injection and other granular material.The utility model is widely used in the tonifying Qi that the powder concentrated phase is carried with extremely low drag losses, high mixing quality, enough wide make-up gas flow adjustment range.
Description of drawings
Fig. 1 is the structural representation that a kind of strength of the present utility model is carried air compensation device.
Fig. 2 is the A-A cutaway view among Fig. 1.
The specific embodiment
Referring to Fig. 1 and Fig. 2, a kind of strength of the present utility model is carried air compensation device that air compensation device main body 1, micropore ring flat-plate 2, tonifying Qi air inlet pipe 3, end socket 4 mainly are housed and is sprayed and be responsible for 5.
An end that sprays the person in charge 5 is placed in the air compensation device cavity, it is identical with the make-up gas channel diameter of air compensation device main body 1 to spray the person in charge 5, the front portion of air compensation device main body 1 is identical with the channel diameter that sprays the person in charge 5, for mixing straight section, guarantee that by the primary mixture main fluid of spraying the person in charge's 5 ejections the cross section not taking place changes suddenly, helps reducing drag losses.
Installing micropore ring flat-plate 2 in the circumferential weld between the air compensation device main body 1 and the injection person in charge 5, be densely covered with the micropore that is fit to material characteristic and air compensation requirement on the micropore ring flat-plate 2, its porosity and aperture keep within the specific limits, thereby the assurance air compensation can be regulated arbitrarily, even when not needing tonifying Qi, powder can not flow back in the tonifying Qi cavity yet, has prevented latch up phenomenon.
The back end inside diameter of air compensation device main body 1 is the expansion shape, forming the make-up gas cavitys with the injection person in charge 5 and micropore ring flat-plate 2 is that the chamber is all pressed in tonifying Qi, the make-up gas that enters from tonifying Qi air inlet pipe 3 realizes along the circumference rectangular distribution in equal chambers of pressure under the barrier effect of micropore ring flat-plate 2.
The make-up gas passage with spray that charge shaft is linear to form an angle, the make-up gas of introducing forms air film on the main fluid surface, has weakened contacting of material particles and tube wall, helps reducing the drag losses of air compensation device.Air compensation device main body inner wall and be positioned at the air compensation device cavity and spray be responsible for the flex point place of outer wall and be arc transition, thus reduced fluid by the time drag losses.
The middle part inner chamber of air compensation device main body 1 is the stream line pattern converging transition, and here supplemental air flow becomes a proper angle to intersect with the primary mixture main fluid.Since adopt the gradual shrinkage structure and all the flex point place of fluid passages wall be arc transition, gas and gas powder mix by the time resistance greatly reduce.
Micropore ring flat-plate 2 of the present utility model is to be fired by metal powder or special ceramic material to form.The utility model installing micropore ring flat-plate, can make make-up gas along primary mixture main fluid circumference rectangular distribution, and between main fluid and tube wall, form short time gas thin layer, and because supplemental air flow becomes a proper angle to intersect with the primary mixture main fluid, make the solids in the primary mixture main fluid be subjected to pointing to the diametral load of conduit axis, reduced the collision friction of particle and tube wall, these conditions all help reducing the drag losses of air compensation device.Because the make-up gas height evenly imports, air compensation device does not produce pulsation phenomenon when carrying powder again.Because micropore ring flat-plate aperture is very little, when the cone pump operating parameter was suitable, the air compensation that can regulate air compensation device was zero again, therefore powder can not take place yet flow backwards and enter air supply passage and cause the air compensation device phenomenon of blocking.
When strength of the present utility model is carried air compensation device work, the fluidization primary mixture sprays from spraying the end of being responsible for after the person in charge enters air compensation device by spraying, the make-up gas that is entered air compensation device by the tonifying Qi air inlet pipe is under the effect of micropore ring flat-plate, from the torus section that sprays the formation of the person in charge and air compensation device main body, spray equably, mix with the primary mixture that sprays person in charge's ejection at air compensation device main body mixer, increased the flowing velocity of primary mixture and the kinetic energy of material particles.Because the utility model is provided with the micropore ring flat-plate, the winding-up person in charge has identical latus rectum with air compensation device main body mixer and passage corner all adopts rounding off, make to the utlity model has gas mixing quality height, advantage that drag losses is especially little, be specially adapted to the remote tonifying Qi of carrying of granular material.
Certainly, those skilled in the art in the present technique field will be appreciated that, the foregoing description only is to be used for illustrating the utility model, and be not with opposing qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in the scope of the utility model claim variation, the modification of the foregoing description.
Claims (4)
1. a strength is carried air compensation device, it comprises air compensation device main body, tonifying Qi air inlet pipe, end socket and sprays and be responsible for, it is characterized in that, the end that described injection is responsible for is placed in the air compensation device cavity, it is identical with the make-up gas channel diameter of air compensation device main body to spray the person in charge, the evenly densely covered finely porous micropore ring flat-plate of band is housed in the circumferential weld between the air compensation device main body and the injection person in charge, makes make-up gas along circumference well-distributed make-up gas cavity between air compensation device main body, micropore ring flat-plate and the injection person in charge, to form.
2. strength according to claim 1 is carried air compensation device, it is characterized in that described micropore ring flat-plate is fired by metal powder or stupalith and formed.
3. strength according to claim 1 is carried air compensation device, it is characterized in that, described make-up gas passage forms angle with injection charge shaft line.
4. strength according to claim 1 is carried air compensation device, it is characterized in that described air compensation device main body inner wall and be positioned at the flex point place that the air compensation device cavity sprays person in charge's outer wall and be arc transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200487085U CN200978146Y (en) | 2006-12-08 | 2006-12-08 | Air delivering and supplying instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200487085U CN200978146Y (en) | 2006-12-08 | 2006-12-08 | Air delivering and supplying instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200978146Y true CN200978146Y (en) | 2007-11-21 |
Family
ID=38978525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200487085U Expired - Fee Related CN200978146Y (en) | 2006-12-08 | 2006-12-08 | Air delivering and supplying instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200978146Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101705338B (en) * | 2009-04-29 | 2011-06-15 | 中冶赛迪工程技术股份有限公司 | Air supplement unit for spraying and blowing system pipeline |
| CN102951452A (en) * | 2011-08-31 | 2013-03-06 | 贵阳铝镁设计研究院有限公司 | Nozzle device for conveyer pipe of tank truck |
| CN104555449A (en) * | 2015-01-09 | 2015-04-29 | 江苏久晟环保设备有限公司 | Fluidization mixer |
| CN105423052A (en) * | 2015-12-22 | 2016-03-23 | 江苏久晟环保设备有限公司 | Novel gas replenisher |
| CN110013636A (en) * | 2019-05-13 | 2019-07-16 | 徐工集团工程机械股份有限公司 | A kind of dry powder spraying system and fire fighting truck |
| CN113291817A (en) * | 2021-06-13 | 2021-08-24 | 湖南顺特粉体输送设备有限公司 | Pagoda type powder fluidization disc for pneumatic powder conveying |
| CN117326332A (en) * | 2023-10-17 | 2024-01-02 | 无锡市伍豪机械设备有限公司 | Energy-saving ash conveying system |
-
2006
- 2006-12-08 CN CNU2006200487085U patent/CN200978146Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101705338B (en) * | 2009-04-29 | 2011-06-15 | 中冶赛迪工程技术股份有限公司 | Air supplement unit for spraying and blowing system pipeline |
| CN102951452A (en) * | 2011-08-31 | 2013-03-06 | 贵阳铝镁设计研究院有限公司 | Nozzle device for conveyer pipe of tank truck |
| CN104555449A (en) * | 2015-01-09 | 2015-04-29 | 江苏久晟环保设备有限公司 | Fluidization mixer |
| CN105423052A (en) * | 2015-12-22 | 2016-03-23 | 江苏久晟环保设备有限公司 | Novel gas replenisher |
| CN110013636A (en) * | 2019-05-13 | 2019-07-16 | 徐工集团工程机械股份有限公司 | A kind of dry powder spraying system and fire fighting truck |
| CN113291817A (en) * | 2021-06-13 | 2021-08-24 | 湖南顺特粉体输送设备有限公司 | Pagoda type powder fluidization disc for pneumatic powder conveying |
| CN117326332A (en) * | 2023-10-17 | 2024-01-02 | 无锡市伍豪机械设备有限公司 | Energy-saving ash conveying system |
| CN117326332B (en) * | 2023-10-17 | 2024-07-23 | 无锡市伍豪机械设备有限公司 | Energy-saving ash conveying system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BAOSTEER ENGINEERING TECHNOLOGY GROUP CO., LTD Free format text: FORMER OWNER: BAOGANG ENGINEERING TECHN CO., LTD., SHANGHAI Effective date: 20100721 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100721 Address after: 201900 Shanghai city Baoshan District Tieli Road No. 2510 Patentee after: Baosteel Engeneering &Technology Group Co., Ltd. Address before: 201900 Shanghai city Baoshan District Tieli Road No. 2510 Patentee before: Shanghai Baogang Engineering Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071121 Termination date: 20151208 |
|
| EXPY | Termination of patent right or utility model |