CN100594072C - Circulating Air Sifter - Google Patents
Circulating Air Sifter Download PDFInfo
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- CN100594072C CN100594072C CN200710055045A CN200710055045A CN100594072C CN 100594072 C CN100594072 C CN 100594072C CN 200710055045 A CN200710055045 A CN 200710055045A CN 200710055045 A CN200710055045 A CN 200710055045A CN 100594072 C CN100594072 C CN 100594072C
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- arc
- shaped
- air
- sieving machine
- intake pipe
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- 238000007873 sieving Methods 0.000 claims abstract description 23
- 238000012216 screening Methods 0.000 claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 14
- 239000012535 impurity Substances 0.000 claims abstract description 8
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000011232 storage material Substances 0.000 claims 1
- 239000011343 solid material Substances 0.000 abstract description 2
- 210000003437 trachea Anatomy 0.000 abstract 1
- 239000000463 material Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
一种循环气流筛粉机，涉及一种将固体物料扩散在气流里进行分选的设备，本发明需要解决的技术问题是提供一种筛分效率高，筛网寿命长且结构简单成本低的气流筛粉机。本发明的技术方案要点是，包括风机、喂料机、筛分机、旋风分离器，风机与筛分机之间的进气管路上设有喂料机，筛分机上方的进气管的顶部和底部为弧形，在此弧形进气管内设有弧形粗滤网，此粗滤网的左、右两端分别与所述弧形进气管的底板和顶板连接，其前后两端分别与弧形进气管的前后侧壁连接，在弧形粗滤网左端的弧形进气管的下部设有出杂质管，一挡板的中部与管口的一侧壁铰接，在此挡板的外端头设有一重物；橡胶板的上端固连在旋风分离器储料仓出料管口上方的板上。本发明用于粉料筛分。
A circulating airflow powder sieving machine, which relates to a kind of equipment that diffuses solid materials in the airflow for sorting. The technical problem to be solved in the present invention is to provide a sieving machine with high screening efficiency, long screen life, simple structure and low cost. Airflow sifter. The main points of the technical solution of the present invention are that it includes a blower fan, a feeder, a screening machine, and a cyclone separator. The arc-shaped coarse filter screen is arranged in the arc-shaped intake pipe, and the left and right ends of the coarse filter screen are respectively connected with the bottom plate and the top plate of the arc-shaped intake pipe, and the front and rear ends are connected with the arc-shaped intake pipe respectively. The front and rear side walls of the trachea are connected, and an impurity outlet pipe is provided at the lower part of the arc-shaped air intake pipe at the left end of the arc-shaped coarse filter screen. The middle part of a baffle is hinged with the side wall of the nozzle. There is a weight; the upper end of the rubber plate is fixedly connected to the plate above the discharge pipe mouth of the storage bin of the cyclone separator. The invention is used for powder screening.
Description
技术领域： Technical field:
本发明涉及一种用气流将固体物料扩散在气流里进行分选的设备，特别是循环气流筛粉机。The invention relates to a sorting device for diffusing solid materials in the airflow by airflow, especially a circulating airflow sieving machine.
背景技术： Background technique:
中国专利号为912023341、012735752提供了一种气流筛粉技术，对于粉料的筛选其筛分效率、台时产量、筛分细度等均优于振动筛分技术，因而得到了广泛的应用。然而这种气流筛粉机在多年的使用中暴露出以下问题：首先是喂料和气粉混合不均，当喂料口的粉料多时，从侧壁孔引入的气反而减小，粉料雾化不充分，甚至粉料成块状，更严重的是块状粉料将筛网击破；其次是筛网损坏，由于物料在焙烧中会有结块产生，物料中常有硬质物体(螺钉、垫片、水泥块等)混入，上述未雾化的物料块，均能使筛网损坏，造成停产，更换筛网，由于上述原因损坏筛网停产的频率较高，一般情况更换一次筛网可用一个班，最长也只有2-3天，有时一个班需要更换2-3个筛网，不仅加大了成本，更严重的是影响生产。申请号为200610017573.0的一种全循环气流筛粉机公开的技术方案，其粉料雾化充分、筛粉效率高，筛网寿命较长，但是由于在进气管路上设置了扩散装置，可将粉料中的硬质物体(螺钉、水泥块)分离出去，但是该扩散室中的锥体分离作用，对于粉料中较小硬粒的分离不好，而这些小硬粒会击穿筛网，而且这种装置结构复杂、体积大。Chinese patent Nos. 912023341 and 012735752 provide a kind of airflow sieving technology. For powder screening, its sieving efficiency, output per unit hour, and sieving fineness are all superior to vibration sieving technology, so it has been widely used. However, the following problems have been exposed in the use of this airflow sieving machine for many years: firstly, the mixing of the feeding material and the gas powder is uneven. Insufficient melting, even the powder becomes lumpy, more serious is that the blocky powder breaks the screen; secondly, the screen is damaged, because the material will agglomerate during roasting, and there are often hard objects (screws, Gaskets, cement blocks, etc.), the above-mentioned non-atomized material blocks can damage the screen and cause production stoppage. Replace the screen. Due to the above reasons, the frequency of production stoppage due to damage to the screen is high. Generally, it is possible to replace the screen once. A shift lasts only 2-3 days at most, and sometimes a shift needs to replace 2-3 screens, which not only increases the cost, but more seriously affects production. The application number is 200610017573.0, which discloses a technical scheme of a full-cycle airflow powder sieving machine, which has sufficient powder atomization, high powder sieving efficiency, and long service life of the screen. The hard objects (screws, cement blocks) in the material are separated, but the cone separation in the diffusion chamber is not good for the separation of smaller hard particles in the powder, and these small hard particles will break through the screen. And this device structure is complicated, volume is big.
发明内容： Invention content:
本发明需要解决的技术问题是提供一种筛分效率高，筛网寿命长且结构简单成本低的气流筛粉机。本发明的技术方案是，循环气流筛粉机，包括风机、喂料机、筛分机、旋风分离器，其特征在于：所述喂料机设在风机与筛分机之间的进气管路上，筛分机上方的进气管的顶部和底部为弧形，在此弧形进气管内设有弧形粗滤网，此粗滤网的左、右两端分别与所述弧形进气管的底板和顶板连接，其前后两端分别与弧形进气管的前后侧壁连接，在弧形粗滤网左端的弧形进气管的下部设有出杂质管，一挡板的中部与出杂质管的管口的一侧壁铰接，在此挡板的外端头设有一重物；所述旋风分离器的进气口与筛分机下部的出气口之间设有出气管路，橡胶板的上端固连在旋风分离器储料仓出料管口上方的板上。筛分机内的叶片均布在封闭的风轮芯筒壁上。在风机与喂料机之间的进气管路上依次设有散气布袋和风量调节板。本发明与现有技术比较具有筛分效率高、筛网寿命长且结构简单成本低的显著优点。The technical problem to be solved by the present invention is to provide an airflow sieving machine with high screening efficiency, long screen life, simple structure and low cost. The technical solution of the present invention is that the circulating airflow sieving machine includes a blower fan, a feeder, a sieving machine, and a cyclone separator, and is characterized in that: the feeder is arranged on the air inlet pipeline between the blower fan and the sieving machine, and the sieve The top and bottom of the air intake pipe above the extension are arc-shaped, and an arc-shaped coarse filter is arranged inside the arc-shaped air intake pipe. The front and rear ends are respectively connected to the front and rear side walls of the arc-shaped air inlet pipe, and the lower part of the arc-shaped air inlet pipe at the left end of the arc-shaped coarse filter is provided with an impurity outlet pipe, and the middle part of a baffle is connected to the mouth of the impurity outlet pipe. The side wall of the baffle is hinged, and a weight is provided at the outer end of the baffle; an air outlet pipeline is provided between the air inlet of the cyclone separator and the air outlet at the lower part of the screening machine, and the upper end of the rubber plate is fixed on the The plate above the discharge nozzle of the cyclone storage bin. The blades in the screening machine are evenly distributed on the wall of the closed wind wheel core. On the air intake pipeline between the fan and the feeder, an air diffuser bag and an air volume regulating plate are arranged in sequence. Compared with the prior art, the present invention has the remarkable advantages of high screening efficiency, long screen mesh life, simple structure and low cost.
附图说明： Description of drawings:
图1是本发明气流筛粉机的结构示意图，图2是图1的A-A剖面图。Fig. 1 is a schematic structural view of the airflow sieving machine of the present invention, and Fig. 2 is a sectional view of A-A of Fig. 1 .
具体实施方式： Detailed ways:
结合以上附图对本发明作详细说明，为了克服现有技术中扩散室的锥体对粉料中的较小硬颗粒分离效果不佳的不足，经过实验采用了在弧形进气管内设置粗网14，在拦截粉料中的硬颗粒和杂物时，能将其拦截后从排杂质管11口排出，提高了筛分效率，延长了筛网7的寿命。为此，本发明在风机1的出口和筛分机6顶部的进气口之间的管路上设有喂料机5，气量调节板3设在喂料机和风机之间的管路上，管外的手柄4与调节板3上的轴连接，该进气管路的末端即在筛分机的上方为一弧形进气管15，粗滤网14的前后两端分别与弧形进气管15的前后侧壁连接，其左右端分别与上述弧形管的下壁和上壁连接，筛分机内设有封闭的风轮芯筒9，叶片8均布在芯筒的圆周上，风轮外设有滤网7，在筛分机的底部设有储碴仓10。在筛分机下部的出气口与旋风分离器17的进气口之间设有出气管路16，旋风分离器的下部有储料仓，储料仓底部有出料管，橡胶板的上部与出料管上部的板连接，筛分机工作时，储料仓为负压，橡胶板将出料管口密封住。在粗滤网左端的弧形管底部设有出杂质管11，挡板12的中部有一轴与出杂质管口壁铰接，挡板的外伸端有一重物13。为了简化结构，喂料机、出碴口和旋风分离器的料仓出口不设闭气器，因而在风机出风口的进气管路2上设有散气布袋18，用来把系统中多余的气体放出来。在旋风分离器顶部的出气口与风机的进气口之间设有出气管19。The present invention is described in detail in conjunction with the above drawings. In order to overcome the disadvantages of the prior art that the cone of the diffusion chamber has a poor separation effect on the smaller hard particles in the powder, a coarse mesh is used in the arc inlet pipe through experiments. 14. When intercepting hard particles and sundries in the powder, they can be intercepted and discharged from the impurity discharge pipe 11, which improves the screening efficiency and prolongs the life of the screen 7. For this reason, the present invention is provided with feeder 5 on the pipeline between the outlet of blower fan 1 and the air inlet at the top of sieving machine 6, and air volume regulating plate 3 is located on the pipeline between feeder and blower fan, outside the pipe The handle 4 of the handle 4 is connected with the shaft on the adjustment plate 3, the end of the air intake pipeline is an arc air intake pipe 15 above the screening machine, and the front and rear ends of the coarse filter 14 are respectively connected to the front and rear sides of the arc air intake pipe 15. The left and right ends are respectively connected to the lower wall and upper wall of the above-mentioned arc tube. A closed wind wheel core tube 9 is arranged inside the screening machine, and blades 8 are evenly distributed on the circumference of the core tube. The net 7 is provided with a slag storage bin 10 at the bottom of the screening machine. An air outlet pipeline 16 is provided between the air outlet at the lower part of the screening machine and the air inlet of the cyclone separator 17, the lower part of the cyclone separator has a storage bin, the bottom of the storage bin has a discharge pipe, and the upper part of the rubber plate is connected to the outlet. The plate on the upper part of the material tube is connected. When the screening machine is working, the storage bin is under negative pressure, and the rubber plate seals the outlet of the material tube. The bottom of the arc tube at the left end of the coarse filter screen is provided with an impurity outlet pipe 11, and the middle part of the baffle plate 12 has an axis to be hinged with the outlet wall of the impurity nozzle, and a weight 13 is arranged at the overhanging end of the baffle plate. In order to simplify the structure, there is no air locker at the outlet of the feeding machine, the slag outlet and the outlet of the cyclone separator. Therefore, an air diffuser bag 18 is provided on the air inlet pipeline 2 of the fan outlet to discharge the excess air in the system. Release it. An air outlet pipe 19 is provided between the air outlet at the top of the cyclone separator and the air inlet of the fan.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710055045A CN100594072C (en) | 2007-08-23 | 2007-08-23 | Circulating Air Sifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710055045A CN100594072C (en) | 2007-08-23 | 2007-08-23 | Circulating Air Sifter |
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| Publication Number | Publication Date |
|---|---|
| CN101108380A CN101108380A (en) | 2008-01-23 |
| CN100594072C true CN100594072C (en) | 2010-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710055045A Expired - Fee Related CN100594072C (en) | 2007-08-23 | 2007-08-23 | Circulating Air Sifter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111282819A (en) * | 2020-03-17 | 2020-06-16 | 瑞安市瑞海机电有限公司 | Fluidized state roasting device for iron ore reduction and using method thereof |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480576A (en) * | 2013-09-29 | 2014-01-01 | 河南嘉和节能科技有限公司 | Powder concentrator with feed inlet provided with air intake homogenizing device |
| CN103721939B (en) * | 2013-12-31 | 2015-08-26 | 楚雄长青科技有限公司 | A kind of pollen pini circulating current screening impurity removing equipment and method |
| CN103736659B (en) * | 2013-12-31 | 2015-11-18 | 楚雄博杉科技有限公司 | Recirculating fluidized bed air flow screening device |
| CN107583795B (en) * | 2017-09-26 | 2019-09-03 | 烟台索山机械有限公司 | A kind of powdery paints recovery system |
| CN113102236A (en) * | 2021-05-06 | 2021-07-13 | 上海汉邦联航激光科技有限公司 | Automatic screening powder circulation system |
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2007
- 2007-08-23 CN CN200710055045A patent/CN100594072C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111282819A (en) * | 2020-03-17 | 2020-06-16 | 瑞安市瑞海机电有限公司 | Fluidized state roasting device for iron ore reduction and using method thereof |
| CN111282819B (en) * | 2020-03-17 | 2021-02-09 | 瑞安市瑞海机电有限公司 | Fluidized state roasting device for iron ore reduction and using method thereof |
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| Publication number | Publication date |
|---|---|
| CN101108380A (en) | 2008-01-23 |
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