倉(cāng)泵是氣力輸送系統(tǒng)中經(jīng)常使用的設(shè)備之一，它屬于一種密封的壓力容器，其作用是把物料裝進(jìn)容器內(nèi)部，與壓縮空氣相混合后，通過(guò)輸料管將物料輸送到卸料地點(diǎn)；倉(cāng)泵輸送系統(tǒng)能夠間歇地輸送物料，也可以連續(xù)輸送物料，這主要由它的結(jié)構(gòu)形式來(lái)決定，單倉(cāng)泵就是間歇輸送，雙倉(cāng)泵則為連續(xù)輸送。倉(cāng)泵具有輸送平穩(wěn)、混合比例高的特點(diǎn)，被廣泛應(yīng)用于粉粒狀物料的輸送，比如藥粉、水泥、煤粉、粘土粉、面粉、碳酸鈣、石灰石粉等。

　　Warehouse pump is one of the commonly used equipment in pneumatic conveying systems. It belongs to a sealed pressure vessel, which is used to load materials into the container, mix them with compressed air, and transport them to the unloading site through the conveying pipe; The bin pump conveying system can intermittently or continuously convey materials, which is mainly determined by its structural form. Single bin pumps are intermittent conveying, while double bin pumps are continuous conveying. Warehouse pumps have the characteristics of smooth transportation and high mixing ratio, and are widely used for the transportation of granular materials such as medicinal powder, cement, coal powder, clay powder, flour, calcium carbonate, limestone powder, etc.

　　倉(cāng)泵按照出料方向可以分為上引式倉(cāng)泵、下引式倉(cāng)泵和中引式倉(cāng)泵，其中前兩種是常用的類型；由于倉(cāng)泵內(nèi)部物料的流化狀態(tài)不一樣，會(huì)導(dǎo)致輸料管出現(xiàn)不穩(wěn)定性，輸送能力、混合比等參數(shù)也會(huì)發(fā)生改變；依據(jù)多年的項(xiàng)目經(jīng)驗(yàn)來(lái)看，在輸送距離不算長(zhǎng)的情況下，采用上引式倉(cāng)泵比較合適；下引式倉(cāng)泵在輸送過(guò)程中更為平穩(wěn)，能夠提高輸送能力；在進(jìn)行選型的時(shí)候，應(yīng)該根據(jù)被輸送物料的特性以及工藝要求來(lái)選用合適的倉(cāng)泵。

　　According to the discharge direction, bin pumps can be divided into upward suction bin pumps, downward suction bin pumps, and middle suction bin pumps, among which the first two are commonly used types; Due to the different fluidization states of materials inside the warehouse pump, instability may occur in the conveying pipe, and parameters such as conveying capacity and mixing ratio may also change; Based on years of project experience, it is more suitable to use an upward suction bin pump when the conveying distance is not too long; The down drawn bin pump is more stable during the conveying process and can improve the conveying capacity; When selecting, the appropriate bin pump should be chosen based on the characteristics of the conveyed material and process requirements.

　　為了節(jié)省能源、降低長(zhǎng)期的運(yùn)行費(fèi)用，可以采用連續(xù)輸送的方式，將倉(cāng)泵進(jìn)行排列組合：具體有單組兩罐并聯(lián)、單組兩罐串聯(lián)和雙組兩罐串聯(lián)等布置形式。

　　In order to save energy and reduce long-term operating costs, continuous conveying can be used to arrange and combine the bin pumps, including single group two tank parallel, single group two tank series, and double group two tank series.

　　單組兩罐并聯(lián)是一種常用的連續(xù)氣力輸送方法，當(dāng)一臺(tái)倉(cāng)泵在輸送物料時(shí)，另一臺(tái)倉(cāng)泵則進(jìn)行加料；當(dāng)?shù)谝慌_(tái)倉(cāng)泵輸送完成后，通過(guò)切換閥來(lái)進(jìn)行轉(zhuǎn)換；這些過(guò)程的動(dòng)作都是由電氣控制和檢測(cè)系統(tǒng)來(lái)實(shí)現(xiàn)的。這種布置方式存在的不足之處是：當(dāng)一臺(tái)倉(cāng)泵在輸送的時(shí)候，另一臺(tái)發(fā)送罐必須把容器內(nèi)部的氣壓排空才能夠裝料，這個(gè)過(guò)程會(huì)使耗氣量增加、功率消耗變大。

　　Parallel connection of two tanks in a single group is a commonly used continuous pneumatic conveying method. When one bin pump is conveying materials, the other bin pump is feeding them; After the first bin pump completes the delivery, it is switched through a switching valve; The actions of these processes are implemented by electrical control and detection systems. The drawback of this arrangement is that when one bin pump is conveying, the other sending tank must empty the pressure inside the container before it can be loaded, which increases the gas consumption and power consumption.

　　單組兩罐串聯(lián)是由上、下兩個(gè)倉(cāng)泵垂直串聯(lián)組成的，兩個(gè)容器通過(guò)裝料閥連接，并且有均壓閥及管道相互聯(lián)通；上、下倉(cāng)泵都裝有料位控制計(jì)，用來(lái)控制罐內(nèi)的物料量。在進(jìn)料的時(shí)候，首先通過(guò)均壓閥將下倉(cāng)泵的輸送壓力送入上倉(cāng)泵，在兩個(gè)容器壓力均衡的條件下進(jìn)行給料。給料結(jié)束之后，裝料閥、均壓閥關(guān)閉，排氣閥打開(kāi)，上倉(cāng)泵內(nèi)部的氣壓全部排空后再進(jìn)行加料；裝滿之后，加料閥和排氣閥關(guān)閉，準(zhǔn)備向下倉(cāng)泵進(jìn)料，完成一個(gè)循環(huán)程序，從而保證連續(xù)輸送；所有的動(dòng)作都由編程控制器自動(dòng)控制。

　　A single group of two tanks connected in series is composed of upper and lower bin pumps vertically connected in series. The two containers are connected by a loading valve and are interconnected by a pressure equalization valve and pipelines; Both the upper and lower storage pumps are equipped with level control meters to control the amount of material in the tank. When feeding, the conveying pressure of the lower bin pump is first sent to the upper bin pump through a pressure equalizing valve, and feeding is carried out under the condition of pressure balance between the two containers. After the feeding is completed, the loading valve and pressure equalizing valve are closed, the exhaust valve is opened, and the air pressure inside the upper chamber pump is completely emptied before feeding; After filling, the feeding valve and exhaust valve are closed to prepare for feeding into the lower bin pump, completing a cycle program to ensure continuous delivery; All actions are automatically controlled by a programming controller.

　　雙組兩罐串聯(lián)是把兩個(gè)單組兩罐串聯(lián)的形式進(jìn)行并聯(lián)組合而成的。它的主要特點(diǎn)是：當(dāng)一組在輸送物料時(shí)，第二組進(jìn)行進(jìn)料，兩組交替運(yùn)行；當(dāng)?shù)谝唤M的物料快要輸送完畢時(shí)，進(jìn)氣閥和輸料閥關(guān)閉，下倉(cāng)泵內(nèi)儲(chǔ)存的氣壓通過(guò)均壓管進(jìn)入上倉(cāng)泵，在氣壓相同的情況下，裝料閥打開(kāi)，物料進(jìn)入下倉(cāng)泵內(nèi)，這樣既節(jié)省了耗氣量，又降低了能耗。

　　Double group two tank series connection is a parallel combination of two single group two tank series connections. Its main feature is that when one group is conveying materials, the second group is feeding, and the two groups are running alternately; When the first group of materials is about to be transported, the inlet valve and feeding valve are closed, and the air pressure stored in the lower chamber pump enters the upper chamber pump through the pressure equalization pipe. Under the same air pressure, the loading valve opens and the materials enter the lower chamber pump, which not only saves air consumption but also reduces energy consumption.

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