干霧抑塵技術技術簡介

?干霧抑塵技術是由DSI(DustSolutions, Inc美國)所研發(fā)并引導的一種優(yōu)于通過傳統(tǒng)噴霧除塵技術的先進技術，是具有25年干霧抑塵技術的公司，DSI技術發(fā)源地。是DSI綜合抑塵方案的組成部分，已在礦山、電廠、港口、垃圾處理站等場所有了廣泛應用。干霧抑塵技術是通過"云霧"化的水霧來捕捉粉塵，讓水霧與空氣中的粉塵顆粒結(jié)合，形成粉塵和水霧的團聚物，受重力作用而沉降下來，實現(xiàn)源頭抑塵，可以有效解決局部封閉/半封閉狀態(tài)下無組織排放粉塵的處理難題，如進料斗和給料機等裝卸區(qū)域的除塵。

傳統(tǒng)噴霧除塵技術，產(chǎn)生的水滴直徑200-300μm，不僅效率低能耗高，而且往往會導致物料過分濕潤，影響成品產(chǎn)量。DSI干霧抑塵技術可以產(chǎn)生1-10μm高度霧化的水霧顆粒，使水霧顆粒與粉塵顆粒充分碰撞凝聚，抑塵效果明顯優(yōu)于傳統(tǒng)噴霧除塵技術。

Dust Solutions, Inc(美)是基于干霧抑塵技術的抑塵設備，通過高性能噴嘴來產(chǎn)生1-100μm超細干霧顆粒，能充分增加與粉塵顆粒的接觸面積，定向抑塵，消除粉塵及呼吸性粉塵的效果明顯。BME干霧專家能夠連續(xù)或間斷地自動噴灑云狀離子干霧，干霧有效噴射距離遠，抗風能力強，形成一道捕捉、團聚粉塵的高效能云霧防塵墻。除此之外，干霧專家所形成的霧滴微細，耗水耗電量小，成本低，不影響后續(xù)工藝和成品的外觀、質(zhì)量，也延長了生產(chǎn)設備的使用壽命。

Dry Fog Systems

How does it work?

DSI technology uses a special air-atomizing nozzle that produces a very dry fog to agglomerate and remove airborne dust particles from various material handling and processing operations. The DSI system utilizes compressed air and plain water to produce these 1-10 micron droplets (true fog). These ultra-fine water droplets attach (agglomerate) to like size airborne dust particles, sometimes referred to as PM-10 (particulate matter 10 microns or smaller). Subsequently, the slightly wetted dust particles become heavy enough to be removed from the air and fall back into the process. It is important to note that we only wet the dust, not the material. This results in very low water and power consumption, requiring no expensive chemicals or significant wetting of the product (always less than 1/2 % by weight, typically no more than 0.1% moisture addition).

Where does it work?

DSI fog systems have proven to significantly reduce fugitive dust from a variety of material handling points, including conveyor transfer points, trippers, reclaimers, crushers, screens, truck dumps, railcar loading/unloading, ship loaders-unloaders, and ash silo discharge chutes. DSI systems can meet all requirements for explosion hazard areas. Freeze protection can be provided for systems operating in temperatures as low as -35 degrees F. Due to a phenomenon known as "cloud physics", fog droplets will not freeze due to their lack of mass!

What are the advantages?

There are many advantages to the DSI system, including ease of installation, simplified maintenance, and flexible system configuration. The overall capital investment and operating costs can be more affordable than the cost of ventilation and chemical type systems. Additionally, system performance is often superior.These advantages are the direct result of using easy to install, pre-assembled modular components housed in protective enclosures. We supply complete systems comprised of electrical controls, filtration, regulation, supply lines and nozzle mounts. If required, DSI can supply all necessaryancillary items including air compressors, air receiver stations, pumps, and self-cleaning secondary filtration systems.

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