負壓密相氣力輸送系統是借助空氣的動力在管道中連續輸送粉體物料的一種連續輸送方式，類型多樣，不同類型的氣力輸送系統結構也略有不同。負壓密相氣力輸送系統一般由氣源部分、供料裝置、輸料管道、分離裝置等結構組成。其中：出料部分由擴壓器（漸縮管、漸擴管）出灰短節組成。旋轉供料器：主要有主閥（殼體、端蓋、葉輪、密封結構等），電機減速機、防護裝置、排氣口等結構組成。擴散混合式：由泵體、氣化裝置、上部落灰斗組成。進氣部分：由調節閥、活動風管、調整機構、噴嘴等組成。負壓密相氣力輸送系統原理負壓密相氣力輸送系統性能穩定，采用連續輸送，工藝結構簡單，故障率少，主要是利用壓縮空氣的動壓能和靜壓能或兩者聯合進行物料輸送，氣體運動所具有的這種特征主要是通過管道氣力輸送粉狀物料或者是粗顆粒的散碎物料，輸送距離遠、輸送質量好。

The negative pressure dense phase pneumatic conveying system is a continuous conveying method that utilizes the power of air to continuously transport powder materials in pipelines. There are various types of pneumatic conveying systems, and the structures of different types of pneumatic conveying systems are also slightly different. The negative pressure dense phase pneumatic conveying system generally consists of a gas source part, a feeding device, a conveying pipeline, a separation device, and other structures. Among them, the discharge part is composed of a diffuser (gradually reducing pipe, gradually expanding pipe) ash discharge short joint. Rotating feeder: mainly composed of main valve (shell, end cover, impeller, sealing structure, etc.), motor reducer, protective device, exhaust port, etc. Diffusion mixing type: composed of a pump body, gasification device, and upper level ash hopper. Air intake part: composed of regulating valve, movable air duct, adjusting mechanism, nozzle, etc. The principle of negative pressure dense phase pneumatic conveying system: The negative pressure dense phase pneumatic conveying system has stable performance and adopts continuous conveying. The process structure is simple and the failure rate is low. It mainly uses the dynamic and static pressure energy of compressed air or a combination of both to transport materials. The characteristics of gas movement are mainly through pipeline pneumatic conveying of powder materials or coarse particle scattered materials, with long conveying distance and good conveying quality.

作為一種的除塵設備，氣力輸送系統設備已經應用于混凝土制造業的每個生產階段。隨著水泥生產工藝技術的不斷發展，許多生產階段只能用袋裝粉塵來生產。制造必須并考慮排放規定。增加氣力輸送系統的工作能力越有益，顯然也將提高合理性。但是，如果粉塵氣比過大，則會在相同的旋風率下造成阻塞，并且氣動輸送機的工作壓力也會增加。對于氣壓型和低正壓氣力輸送系統，將有不止氣帽機械設備。

As an efficient dust removal equipment, pneumatic conveying system equipment has been applied in every production stage of the concrete manufacturing industry. With the continuous development of cement production technology, many production stages can only use bagged dust for production. Manufacturing must take into account emission regulations. The more beneficial it is to increase the working capacity of the pneumatic conveying system, obviously it will also improve rationality. However, if the dust to gas ratio is too high, it will cause blockage at the same cyclone rate, and the working pressure of the pneumatic conveyor will also increase. For pneumatic and low positive pressure pneumatic conveying systems, there will be more than just cap mechanical equipment.

氣力輸送和其他設備相比具有一系列的優點：生產率高、設備的構造簡單、管理方便、自動化程度高、節省勞動力、易裝載、防潮、防污染。特別是在車進內部應用時，可將輸送過程和工藝過程相結合，簡化工藝過程和設備。如水泥有袋裝改為散裝，使用氣力輸送罐車后，可提高勞動生產效率20倍；改善勞頓條件，減少水泥粉塵外泄，防止污染環境。

Compared with other equipment, pneumatic conveying has a series of advantages: high productivity, simple equipment structure, convenient management, high degree of automation, labor saving, easy loading, moisture-proof, and pollution prevention. Especially when applied internally, the conveying process and process can be combined to simplify the process and equipment. If the cement is changed from bagged to loose, using pneumatic transport tankers can improve labor production efficiency by 20 times; Improve labor conditions, reduce cement dust leakage, and prevent environmental pollution.

管道氣力輸送技術屬于氣固兩相流，已.有一百多年的，然而直到現在，由于其機理的復雜性，直到現在還沒有建立一套完善的理論，大多數設計的及使用的輸送系統都是建立在實驗的基礎上，這導致了其理論的發展遠遠落后于其在工業上的應用。隨著我國工業，農業現代化的進程，物料的搬運日趨頻繁，特別是在化工、鋼鐵、冶金等企業中，大部分勞動力消耗于原料和制成品的運輸，因此迫切需要尋找一些經濟、省力的搬運方式。

Pipeline pneumatic conveying technology belongs to gas-solid two-phase flow, which has been around for over a hundred years. However, until now, due to the complexity of its mechanism, a complete set of theories has not been established. Most designed and used conveying systems are based on experiments, which leads to the development of its theory falling far behind its industrial application. With the modernization of industry and agriculture in China, the handling of materials is becoming increasingly frequent, especially in chemical, steel, metallurgical and other enterprises. Most of the labor is consumed in the transportation of raw materials and finished products, so there is an urgent need to find some economic and labor-saving handling methods.

氣力輸送和傳統輸送方式相比較有以下優點：

Compared to traditional conveying methods, pneumatic conveying has the following advantages:

(1）對物料粒度的要求比較低：既適用于小顆粒物的連續輸送，又適用于大顆粒物的間歇輸送。對于化學性質不穩定的物料，可使用惰性氣體進行保護輸送。

(1) The requirement for material particle size is relatively low: it is suitable for both continuous transportation of small particles and intermittent transportation of large particles. For materials with unstable chemical properties, inert gas can be used for protective transportation.

(2）操作方便、自動化程度高：氣力輸送系統所采用的儀表、輸送泵、開關閥門等裝置均統一由一個中心控制系統控制，工作人員只需要操作該中心控制系統即可實現對整個系統的控制。

(2) Convenient operation and high degree of automation: The instruments, delivery pumps, switch valves, and other devices used in the pneumatic conveying system are all controlled by a central control system. Staff only need to operate the central control system to achieve control of the entire system.

(3）空間利用率高：由于采用了管道運輸，輸送的方向不受限制，管路可靈活布置，不受空間、其他裝置的影響，可以繞設備、建筑進行輸送，很大程度上提高了空間利用率。

(3) High space utilization rate: Due to the use of pipeline transportation, the direction of transportation is not limited, and the pipeline can be flexibly arranged without being affected by space or other devices. It can be transported around equipment and buildings, greatly improving space utilization rate.

(4）操作，污染小：氣力輸送系統的密封性能很好，可以有效地避免物料逸出，提高工作的性，同時減少污染。氣力輸送系統廠家直供優勢。歡迎來電咨詢江蘇惟德智能！

(4) Safe operation and low pollution: The sealing performance of the pneumatic conveying system is very good, which can effectively prevent material leakage, improve work safety, and reduce pollution. Advantages of direct supply from manufacturers of pneumatic conveying systems. Welcome to inquire about Jiangsu Weide Intelligent!