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氣力輸送系統(tǒng)分類有哪些?

發(fā)布時(shí)間:2022-06-02 來源:http://lzdbgs.com.cn/

氣力輸送系統(tǒng)分類有哪些?
What are the classifications of pneumatic conveying systems?
氣力輸送設(shè)備一般由受料器(如喉管、吸嘴、發(fā)送器等)、輸送管、風(fēng)管、分離器(常用的有容積式和旋風(fēng)式兩種)、鎖氣器(常用的有翻板式和回轉(zhuǎn)式兩種,既可作為喂料器,又可作為卸料器)、除塵器和風(fēng)機(jī)(如離心式風(fēng)機(jī)、鼓風(fēng)機(jī)、水環(huán)真空泵、空壓機(jī)等)等設(shè)備和部件組成。受料器的作用是進(jìn)人物料,造成合適的料氣比,使物料啟動(dòng)、加速。分離器的作用是將物料與空氣分離,并對物料進(jìn)行分選。鎖氣器的作用是均勻供料或卸料,同時(shí)阻止空氣漏人。風(fēng)機(jī)的作用是為系統(tǒng)提供動(dòng)力。真空吸送系統(tǒng)常用高壓離心風(fēng)機(jī)或水環(huán)真空泵;而壓送系統(tǒng)則需用羅茨鼓風(fēng)機(jī)或空壓機(jī)。
Pneumatic conveying equipment is generally composed of feeder (such as throat, suction nozzle, transmitter, etc.), conveying pipe, air pipe, separator (commonly used are volumetric and cyclone), air lock (commonly used are flap and rotary, which can be used as both feeder and discharger), dust collector and fan (such as centrifugal fan, blower, water ring vacuum pump, air compressor, etc.). The function of the feeder is to feed the material to create an appropriate material gas ratio, so that the material can be started and accelerated. The function of separator is to separate materials from air and sort materials. The function of air lock is to evenly feed or discharge materials and prevent air leakage at the same time. The function of the fan is to provide power for the system. High pressure centrifugal fan or water ring vacuum pump are commonly used in vacuum suction system; The pressure delivery system requires roots blower or air compressor.
1.吸送式氣力輸送系統(tǒng)
1. suction pneumatic conveying system
氣源設(shè)備在系統(tǒng)的末端。當(dāng)風(fēng)機(jī)運(yùn)轉(zhuǎn)后,整個(gè)系統(tǒng)形成負(fù)壓,管道內(nèi)外產(chǎn)生壓差,空氣被吸入輸料管道。物料也從吸嘴被空氣帶入管道,通過管道進(jìn)入分離收集器,然后物料通過旋轉(zhuǎn)供料器進(jìn)入儲(chǔ)料罐,而空氣則通過收集器中的過濾設(shè)備從風(fēng)機(jī)中排除
The air supply equipment is at the end of the system. When the fan operates, the whole system forms a negative pressure, resulting in a pressure difference inside and outside the pipeline, and the air is sucked into the material transmission pipeline. The material is also brought into the pipe by air from the suction nozzle, and enters the separation collector through the pipe. Then the material enters the storage tank through the rotary feeder, and the air is discharged from the fan through the filter equipment in the collector
2.壓送式氣力輸送系統(tǒng)
2. pressure pneumatic conveying system
氣源在輸送設(shè)備的前端,因此,物料進(jìn)入輸送罐使用有密封壓力的供料裝置。一般在低壓時(shí),使用的是旋轉(zhuǎn)供料器;高壓時(shí),使用流化罐。物料通過閥門進(jìn)入輸送罐,再通過蝶閥進(jìn)入流化罐,通過量位儀或者稱量秤控制其進(jìn)料量,當(dāng)達(dá)到要求后,蝶閥關(guān)閉,通入空氣使物料流態(tài)化,開啟流態(tài)化下端的閥門,通過空氣將物料和空氣的混合物壓入管道。
The air source is at the front end of the conveying equipment. Therefore, the material entering the conveying tank uses a feeding device with sealing pressure. Generally, the rotary feeder is used at low pressure; At high pressure, use fluidizing tank. The materials enter the conveying tank through the valve, and then enter the fluidization tank through the butterfly valve. The feeding amount is controlled by the level meter or weighing scale. When the requirements are met, the butterfly valve is closed, air is introduced to fluidize the materials, the valve at the lower end of the fluidization is opened, and the mixture of materials and air is pressed into the pipeline through the air.
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