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正壓氣力輸送系統(tǒng)的特點(diǎn)和注意事項(xiàng)

發(fā)布時(shí)間:2022-09-15 來(lái)源:http://lzdbgs.com.cn/

正壓氣力輸送是采用正壓氣源高速在管道中進(jìn)行吹送的輸送方式一般采用的氣源有離心風(fēng)機(jī)、羅茨風(fēng)機(jī)、空氣壓縮機(jī)等。正壓氣力輸送為動(dòng)壓輸送方式,分為正壓稀相輸送和正壓密相輸送。正壓稀相輸送系統(tǒng)通常用于將散裝物料從一個(gè)地點(diǎn)輸送到一個(gè)或多個(gè)目的地,比負(fù)壓系統(tǒng)輸送的距離更長(zhǎng),容量更大。正壓氣力輸送系統(tǒng)利用一個(gè)鼓風(fēng)機(jī)與單一或多個(gè)下游物料入口點(diǎn)連接,每一個(gè)產(chǎn)品進(jìn)入輸送線通過(guò)一個(gè)旋轉(zhuǎn)氣鎖閥,為了保持環(huán)境大氣和輸送線之間的壓差。正壓氣力輸送物料和空氣在單次或多次使用點(diǎn)從管道出口吹出,通過(guò)過(guò)濾器接收器或旋風(fēng)分離器進(jìn)行分離,或直接進(jìn)入工藝容器,排放到下游的除塵設(shè)備。正壓氣力輸送系統(tǒng)提供比負(fù)壓系統(tǒng)更高的效率,可以在更長(zhǎng)的距離傳輸,可以直接吹入過(guò)程和存儲(chǔ)容器,而不使用旋轉(zhuǎn)氣鎖閥。
Positive pressure pneumatic conveying refers to the conveying mode that the positive pressure air source is used to blow in the pipeline at high speed. Generally, the air sources used are centrifugal fan, Roots blower, air compressor, etc. Positive pressure pneumatic conveying is a dynamic conveying mode, which is divided into positive pressure dilute phase conveying and positive pressure dense phase conveying. Positive pressure dilute phase conveying system is usually used to transport bulk materials from one place to one or more destinations, with longer distance and larger capacity than negative pressure system. The positive pressure pneumatic conveying system uses a blower to connect with a single or multiple downstream material entry points. Each product enters the conveying line through a rotary airlock valve to maintain the pressure difference between the ambient atmosphere and the conveying line. The positive pressure pneumatic conveying material and air are blown out from the pipe outlet at the point of single or multiple use, separated by the filter receiver or cyclone separator, or directly into the process container and discharged to the downstream dedusting equipment. The positive pressure pneumatic conveying system provides higher efficiency than the negative pressure system, can be transmitted over a longer distance, and can be directly blown into the process and storage container without using a rotary airlock valve.
為了簡(jiǎn)單地將產(chǎn)品從a點(diǎn)傳送到B點(diǎn),通常需要正壓氣力輸送,設(shè)備一般用鼓風(fēng)機(jī)、旋轉(zhuǎn)氣鎖、旋風(fēng)接收器(有時(shí)是氣鎖閥)和帶有彎頭和聯(lián)軸器的管道系統(tǒng)。通常情況下,從旋風(fēng)收集器排出的空氣需要排到一個(gè)二級(jí)過(guò)濾器、洗滌器或簡(jiǎn)單的大氣中。
In order to simply transfer products from point a to point B, positive pressure pneumatic conveying is usually required. The equipment generally uses blowers, rotary airlocks, cyclone receivers (sometimes airlock valves) and piping systems with elbows and couplings. Normally, the air discharged from the cyclone collector needs to be discharged to a secondary filter, scrubber or simple atmosphere.
正壓氣力輸送系統(tǒng)的一個(gè)特點(diǎn)是可以增加卸料點(diǎn),只需確定好目的地后在輸送管線上添加分流閥,卸貨到指定的目的地。正壓氣力輸送的另一個(gè)特點(diǎn)是,通過(guò)規(guī)劃可以設(shè)計(jì)成一個(gè)循環(huán)的系統(tǒng),重復(fù)使用空氣,將物料串聯(lián)到二個(gè)目的地,這需要進(jìn)行特殊的設(shè)計(jì)。
A feature of the positive pressure pneumatic conveying system is that the unloading point can be added. Only after the destination is determined, add a diverter valve on the conveying pipeline to unload to the designated destination. Another feature of positive pressure pneumatic conveying is that it can be designed as a circulating system through planning, which can reuse air and connect materials to two destinations in series. This requires special design.
盡管正壓氣力輸送系統(tǒng)在大氣壓力下將物料輸送到接收點(diǎn)是所有氣力輸送系統(tǒng)中非常常見(jiàn)的,但在高壓下將物料輸送到有空氣的管道中會(huì)出現(xiàn)一些問(wèn)題??晒┦褂玫墓┝涎b置種類繁多。不利的壓力梯度,每種類型的供料機(jī)都有可能從正壓氣力輸送系統(tǒng)中泄漏空氣,并攜帶灰塵。
Although it is very common for a positive pressure pneumatic conveying system to convey materials to the receiving point under atmospheric pressure in all pneumatic conveying systems, there will be some problems in conveying materials to pipes with air under high pressure. There are many kinds of feeding devices available. Unfavorable pressure gradient, each type of feeder may leak air and carry dust from the positive pressure pneumatic conveying system.
使用分流閥,正壓系統(tǒng)可以很容易地將多個(gè)物料輸送到多個(gè)接收點(diǎn)。雖然也可以安排將物料多點(diǎn)輸送到一條普通的管道中,但在不使用時(shí),由于管道中有高壓空氣,一定要注意空氣泄漏的可能性。
With diverter valves, a positive pressure system can easily transport multiple materials to multiple receiving points. Although it can also be arranged to transport materials to a common pipe at multiple points, when not in use, due to high-pressure air in the pipe, the possibility of air leakage must be noted.
以上就是為大家介紹的有關(guān)廣西氣力輸送方案設(shè)計(jì)的詳細(xì)的介紹,希望對(duì)您有所幫助.如果您有什么疑問(wèn)的話,歡迎聯(lián)系我們.我們將以的態(tài)度,為您提供服務(wù)http://lzdbgs.com.cn/
The above is a detailed introduction to the design of Guangxi pneumatic conveying scheme. I hope it will be helpful to you. If you have any questions, please contact us. We will provide you with professional services http://lzdbgs.com.cn/