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企業(yè)新聞 當(dāng)前位置:首頁-行業(yè)咨詢-企業(yè)新聞真空氣力輸送系統(tǒng)管道堵塞解決方法

真空氣力輸送系統(tǒng)管道堵塞解決方法

發(fā)布時(shí)間:2022-06-15 來源:http://lzdbgs.com.cn/

在目前的工業(yè)環(huán)境中,氣力輸送的應(yīng)用層出不窮。無論是正壓真空氣力輸送還是負(fù)壓真空氣力輸送,如果初步設(shè)計(jì)不合理,將面臨管道堵塞的問題。那么防止真空氣力輸送系統(tǒng)堵塞的方法有哪些呢?一起來了解下!
In the current industrial environment, the application of pneumatic conveying is emerging in endlessly. Whether it is positive pressure vacuum pneumatic conveying or negative pressure vacuum pneumatic conveying, if the preliminary design is unreasonable, it will face the problem of pipeline blockage. So what are the methods to prevent the blockage of vacuum pneumatic conveying system? Let's get to know each other!
一、在設(shè)計(jì)真空氣力輸送系統(tǒng)時(shí),要考慮混合比和風(fēng)速。當(dāng)輸送物料不同時(shí),混合比、風(fēng)速等工藝參數(shù)也會(huì)不同。設(shè)計(jì)時(shí)應(yīng)合理選擇設(shè)備。如果輸送管的直徑太小,很容易堵塞。對(duì)于流動(dòng)性較差的物料,當(dāng)混合比較大時(shí),一般建議選用較小的直徑。對(duì)于流動(dòng)性好的物料,當(dāng)混合比很低時(shí),應(yīng)選擇較大的管徑。
1、 When designing the vacuum pneumatic conveying system, the mixing ratio and wind speed should be considered. When different materials are transported, the mixing ratio, wind speed and other process parameters will be different. Equipment shall be reasonably selected during design. If the diameter of the delivery pipe is too small, it is easy to be blocked. For materials with poor fluidity, when the mixing ratio is large, it is generally recommended to select a smaller diameter. For materials with good fluidity, when the mixing ratio is very low, a larger pipe diameter should be selected.
二、設(shè)計(jì)合理的真空氣力輸送系統(tǒng)管路布置
2、 Rational design of pipeline layout for vacuum pneumatic conveying system
設(shè)計(jì)合理的管路布置。管道設(shè)計(jì)應(yīng)選擇輸送距離短、集中彎頭越來越少、換向彎頭轉(zhuǎn)角小、曲率半徑大的方案。對(duì)于局部電阻大的零件,如彎頭和換向器,應(yīng)盡可能靠近高壓端部,即壓緊時(shí)靠近送風(fēng)罐,吸氣時(shí)靠近氣源機(jī)械端。
Design reasonable pipeline layout. The pipeline design shall select the scheme with short conveying distance, less and less concentrated elbows, small angle of reversing elbow and large radius of curvature. Parts with high local resistance, such as elbows and commutators, should be as close to the high-voltage end as possible, that is, close to the air supply tank when pressing, and close to the mechanical end of the air source when inhaling.
三、真空氣力輸送系統(tǒng)選用性能良好的氣源設(shè)備
3、 Air source equipment with good performance shall be selected for vacuum pneumatic conveying system
供氣系統(tǒng)應(yīng)保證有足夠的氣量和穩(wěn)定的壓力,因此,選擇性能良好的氣源機(jī)械,并配備足夠容量的專用儲(chǔ)氣罐和分離器。如果氣源來自總空壓站,專用儲(chǔ)氣罐的進(jìn)氣管也應(yīng)設(shè)置單向閥,防止壓縮空氣因其他干擾而回流。
The air supply system shall ensure sufficient air volume and stable pressure. Therefore, select the air supply machinery with good performance and be equipped with special air storage tanks and separators with sufficient capacity. If the air source comes from the general air compression station, the air inlet pipe of the special air storage tank shall also be equipped with a check valve to prevent the compressed air from flowing back due to other interference.
四、在以后的操作中,定期對(duì)真空氣力輸送系統(tǒng)進(jìn)行清洗管道。
4、 In the later operation, the vacuum pneumatic conveying system shall be cleaned regularly.
物料輸送前,應(yīng)清洗系統(tǒng),供料機(jī)應(yīng)均勻供料。輸送罐的設(shè)計(jì)應(yīng)合理。如果出料口過小,錐度不夠,壁面不平整,影響均勻出料。如果結(jié)構(gòu)不合理,壓力損失會(huì)大,容易造成堵塞。輸送罐Z好配備流化進(jìn)氣裝置。輸送一些粘性物料時(shí),每天輸送完畢后,應(yīng)加入鋼刷球(直徑略小于輸送管內(nèi)徑)和一些粗石英砂,通過變送器送輸送管,對(duì)管道進(jìn)行清洗。
Before material conveying, the system shall be cleaned and the feeding machine shall feed uniformly. The design of the transfer tank shall be reasonable. If the discharge port is too small, the taper is not enough, and the wall surface is uneven, it will affect the uniform discharge. If the structure is unreasonable, the pressure loss will be large, which is easy to cause blockage. The conveying tank Z shall be equipped with fluidizing air inlet device. When transporting some viscous materials, steel brush balls (whose diameter is slightly smaller than the inner diameter of the conveying pipe) and some coarse quartz sand shall be added after the transportation every day, and sent to the conveying pipe through the transmitter to clean the pipe.
五、真空氣力輸送系統(tǒng)安裝增速器
5、 Installation of booster for vacuum pneumatic conveying system
高壓輸送裝置,若輸送距離長,在管道容易堵塞或局部阻力較大的地方可安裝增速器。壓力輸送裝置也可設(shè)置帶截止閥的吹口管線。堵塞時(shí),打開閥門,依次吹入壓縮空氣,逐段吹入堵塞層。對(duì)于負(fù)壓氣力輸送,在容易堵塞的地方可以打開幾個(gè)孔徑可調(diào)的堵頭。當(dāng)輸送管道堵塞時(shí),可打開管道,使空氣進(jìn)入管道內(nèi)吹通。
For high-pressure conveying device, if the conveying distance is long, speed increaser can be installed where the pipeline is easy to be blocked or local resistance is large. The pressure conveying device can also be provided with a blowpipe with a stop valve. In case of blockage, open the valve, blow compressed air in turn, and blow into the blockage layer section by section. For negative pressure pneumatic conveying, several plugs with adjustable aperture can be opened at places easy to be blocked. When the conveying pipe is blocked, the pipe can be opened to allow air to enter the pipe for blowing.
六、操作前檢查
6、 Pre operation inspection
真空氣力輸送系統(tǒng)操作前,應(yīng)對(duì)整個(gè)系統(tǒng)的設(shè)備、管道和控制元件進(jìn)行檢查。如有異常現(xiàn)象,應(yīng)及時(shí)處理修。除去儲(chǔ)氣罐、氣水分離器內(nèi)積水,清理卸料器,準(zhǔn)備好收料系統(tǒng),氣源壓力、流量正常,管路通暢無漏氣,換向器方向正確。
Before the operation of vacuum pneumatic conveying system, the equipment, pipelines and control elements of the whole system shall be inspected. If there is any abnormal phenomenon, it shall be handled and repaired in time. Remove the accumulated water in the air storage tank and gas-water separator, clean the unloader, prepare the receiving system, the air supply pressure and flow are normal, the pipeline is smooth without air leakage, and the direction of the commutator is correct.
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