仓泵是气力输送系统中经常使用的设备之一，它属于一种密封的压力容器，其作用是把物料装进容器内部，与压缩空气相混合后，通过输料管将物料输送到卸料地点；仓泵输送系统能够间歇地输送物料，也可以连续输送物料，这主要由它的结构形式来决定，单仓泵就是间歇输送，双仓泵则为连续输送。仓泵具有输送平稳、混合比例高的特点，被广泛应用于粉粒状物料的输送，比如药粉、水泥、煤粉、粘土粉、面粉、碳酸钙、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.

　　仓泵按照出料方向可以分为上引式仓泵、下引式仓泵和中引式仓泵，其中前两种是常用的类型；由于仓泵内部物料的流化状态不一样，会导致输料管出现不稳定性，输送能力、混合比等参数也会发生改变；依据多年的项目经验来看，在输送距离不算长的情况下，采用上引式仓泵比较合适；下引式仓泵在输送过程中更为平稳，能够提高输送能力；在进行选型的时候，应该根据被输送物料的特性以及工艺要求来选用合适的仓泵。

　　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.

　　为了节省能源、降低长期的运行费用，可以采用连续输送的方式，将仓泵进行排列组合：具体有单组两罐并联、单组两罐串联和双组两罐串联等布置形式。

　　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.

　　单组两罐并联是一种常用的连续气力输送方法，当一台仓泵在输送物料时，另一台仓泵则进行加料；当第一台仓泵输送完成后，通过切换阀来进行转换；这些过程的动作都是由电气控制和检测系统来实现的。这种布置方式存在的不足之处是：当一台仓泵在输送的时候，另一台发送罐必须把容器内部的气压排空才能够装料，这个过程会使耗气量增加、功率消耗变大。

　　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.

　　单组两罐串联是由上、下两个仓泵垂直串联组成的，两个容器通过装料阀连接，并且有均压阀及管道相互联通；上、下仓泵都装有料位控制计，用来控制罐内的物料量。在进料的时候，首先通过均压阀将下仓泵的输送压力送入上仓泵，在两个容器压力均衡的条件下进行给料。给料结束之后，装料阀、均压阀关闭，排气阀打开，上仓泵内部的气压全部排空后再进行加料；装满之后，加料阀和排气阀关闭，准备向下仓泵进料，完成一个循环程序，从而保证连续输送；所有的动作都由编程控制器自动控制。

　　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.

　　双组两罐串联是把两个单组两罐串联的形式进行并联组合而成的。它的主要特点是：当一组在输送物料时，第二组进行进料，两组交替运行；当第一组的物料快要输送完毕时，进气阀和输料阀关闭，下仓泵内储存的气压通过均压管进入上仓泵，在气压相同的情况下，装料阀打开，物料进入下仓泵内，这样既节省了耗气量，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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