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　　仓泵又称仓式泵、发送罐，是一个密封压力容器；其作用是将物料装入仓泵内与压缩空气混合后经输料管输送物料至卸料点；仓泵输送系统分间歇输送和连续输送两种，主要取决于它的结构方式，单仓泵是间歇输送，双仓泵为连续输送。仓泵具有输送平稳、混合比高，广泛用于粉粒装物料的输送，如药粉、水泥、煤粉、粘土粉、面粉、碳酸钙、石灰石粉等。

　　A silo pump, also known as a silo pump or a sending tank, is a sealed pressure vessel; Its function is to load the material into the warehouse pump and mix it with compressed air, then transport the material through the conveying pipe to the unloading point; The bin pump conveying system is divided into two types: intermittent conveying and continuous conveying, mainly depending on its structural mode. Single bin pumps are intermittent conveying, while double bin pumps are continuous conveying. Warehouse pumps have the advantages of smooth conveying and high mixing ratio, and are widely used for conveying materials such as powder, cement, coal powder, clay powder, flour, calcium carbonate, limestone powder, etc.

　　对于气力输灰仓泵工作原理，鑫鲁泉盛小编从仓泵的间歇输送和连续输送予以简述：

　　Regarding the working principle of the pneumatic ash conveying bin pump, the Xinlu Quansheng editor briefly describes the intermittent and continuous conveying of the bin pump:

　　气力输灰间歇仓泵工作原理也可理解为单仓泵的工作原理是结合流态化和气固两相流技术所研制的，其输送技术的关键是必须将物料在仓泵内得到充分的流态化且是边流化边输送，改悬浮式气力输送为流态化气力输送，是成熟可靠的气力输送技术之一；仓泵控制常采用笔尝颁程序控制与现场就地手操相结合的方式，每输送一仓飞灰即为一个工作循环，每个工作循环分为进料阶段、加压流化阶段、输送阶段、吹扫阶段四个阶段：

　　The working principle of the intermittent bin pump for pneumatic ash conveying can also be understood as the working principle of a single bin pump, which is developed by combining fluidization and gas-solid two-phase flow technology. The key to its conveying technology is to fully fluidized the material in the bin pump and transport it while fluidized. Changing suspended pneumatic conveying to fluidized pneumatic conveying is one of the mature and reliable pneumatic conveying technologies; The control of the silo pump often adopts a combination of PLC program control and on-site manual operation. Each conveying of one silo fly ash is a working cycle, which is divided into four stages: feeding stage, pressurized fluidization stage, conveying stage, and blowing stage

　　1. 进料阶段：进料阀呈开启状态，进气阀和出料阀关闭，仓泵内部与灰斗连通，仓泵内无压力（与除尘器内部等压），飞灰源源不断地从除尘器灰斗进入仓泵，当仓泵内飞灰灰位高至与料位计探头接触，则料位计产生一料满信号，并通过现场控制单元进入程序控制器。在程序控制器控制下，系统自动关闭进料阀进料状态结束。

　　1. Feeding stage: The feeding valve is in the open state, the inlet valve and outlet valve are closed, the interior of the bin pump is connected to the ash hopper, and there is no pressure inside the bin pump (equal pressure to the interior of the dust collector). Fly ash continuously enters the bin pump from the dust collector ash hopper. When the fly ash level in the bin pump is high enough to contact the level gauge probe, the level gauge generates a full signal and enters the program controller through the on-site control unit. Under the control of the program controller, the system automatically closes the feeding valve and the feeding state ends.

　　2. 加压流化阶段：进料阀关闭，打开进气阀，压缩空气通过流化盘均匀进入仓泵，仓泵内飞灰充分流态化，同时压力升高，当压力高至双压力开关上限压力时，由双压力开关输出上限压力信号至控制系统，系统自动打开出料阀，加压流化阶段结束，进入输送阶段。

　　2. Pressure fluidization stage: The feed valve is closed, the inlet valve is opened, and compressed air enters the bin pump uniformly through the fluidization disc. The fly ash in the bin pump is fully fluidized, and the pressure increases. When the pressure reaches the upper limit of the dual pressure switch, the dual pressure switch outputs the upper limit pressure signal to the control system, and the system automatically opens the discharge valve. The pressure fluidization stage ends and enters the conveying stage.

　　3. 输送阶段：出料阀打开，此时仓泵一边继续进气，飞灰被流态化，灰气均匀混合；一边气灰混合物通过出料阀进入输灰管道且输送至灰库，此时仓泵内压力降低至双压力开关整定的下限压力值时，输送阶段结束，进入吹扫阶段，但此时进气阀和出料阀仍保持开启状态。

　　3. Transportation stage: The discharge valve is opened, and at this time, the bin pump continues to intake air. The fly ash is fluidized and the ash gas is evenly mixed; The gas ash mixture enters the ash conveying pipeline through the discharge valve and is transported to the ash silo. At this time, when the pressure inside the bin pump drops to the lower limit pressure value set by the dual pressure switch, the conveying stage ends and enters the purging stage. However, at this time, the inlet valve and discharge valve remain open.

　　4. 吹扫阶段：进气阀和出料阀仍开启，压缩空气吹扫仓泵和输灰管道，此时仓泵内已无飞灰，管道内飞灰逐渐减少，最后几乎呈空气流动状态。系统阻力下降，仓泵内压力也下降至一稳定值。吹扫的目的是吹尽管路和泵体内残留的飞灰，以利于下一循环的输送。定时一段时间后，吹扫结束，关闭进气阀、出料阀，然后打开进料阀，仓泵恢复进料状态。至此，四个阶段的一个输送循环结束，重新开启下一个输送循环。

　　4. Purging stage: The intake valve and discharge valve are still open, and compressed air is used to blow the bin pump and ash conveying pipeline. At this time, there is no fly ash in the bin pump, and the fly ash in the pipeline gradually decreases, finally almost in an air flow state. The system resistance decreases, and the pressure inside the bin pump also drops to a stable value. The purpose of purging is to blow away the residual fly ash in the pipeline and pump body, in order to facilitate the transportation of the next cycle. After a certain period of time, the blowing is completed, the intake valve and discharge valve are closed, and then the feed valve is opened, and the bin pump returns to the feeding state. At this point, one of the four stages of the conveying cycle ends, and the next conveying cycle is restarted.

　　说完单仓泵气力输灰系统的工作原理，鑫鲁泉盛小编再讲讲连续气力输灰仓泵工作原理也可理解为双仓泵连续气力输送，需注意的是连续气力输灰仓泵工作原理取决于其组合形式，详细如下：

　　After discussing the working principle of the single chamber pump pneumatic ash conveying system, Xinlu Quansheng editor will explain the working principle of the continuous pneumatic ash conveying chamber pump, which can also be understood as the continuous pneumatic conveying of the double chamber pump. It should be noted that the working principle of the continuous pneumatic ash conveying chamber pump depends on its combination form, as detailed below:

　　1）仓泵单组两罐并联是一种常用的连续气力输送方法，一台仓泵输送时，另一台仓泵加料；当第一台输送结束后，由切换阀转换；这些过程动作由电气控制和检测系统来实现。这种布置方式存在的缺点是：当一台仓泵输送时另一台发送罐必须将容器内气压排空才可装料，这一过程使耗气量增加、功率消耗大。

　　1) Parallel connection of two tanks in a single warehouse pump is a commonly used continuous pneumatic conveying method. When one warehouse pump is conveying, the other warehouse pump is feeding; After the first conveyor is completed, it is switched by the switching valve; These process actions are implemented by electrical control and detection systems. The disadvantage of this arrangement is that when one bin pump is transporting, the other sending tank must empty the pressure inside the container before loading, which increases gas consumption and power consumption.

　　2）单组两罐串联是由上、下两仓泵铅直串联组成，两容器由装料阀连接且有均压阀及管道联通；上、下仓泵均有料位控制计，控制罐内物料量。进料时，首先将下仓泵的输送压力通过均压阀送入上仓泵，在两器均压的条件下给料。给料结束后，装料阀、均压阀关闭，排气阀打开，上仓泵内气压全部排空再进行加料；装满后，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，保证连续输送；全部动作均由编程控制器自动控制。

　　2) A single group of two tanks connected in series is composed of vertically connected upper and lower tank pumps. The two containers are connected by a loading valve and have a pressure equalization valve and pipeline connection; Both the upper and lower storage pumps have level control meters to regulate 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 equalization valve, and the feeding is carried out under the condition of pressure equalization between the two devices. After the feeding is completed, the loading valve and pressure equalizing valve are closed, the exhaust valve is opened, and the air pressure in the upper chamber pump is completely emptied before feeding; After filling, close the feeding valve and exhaust valve, and prepare to feed the lower bin pump, completing a cycle program to ensure continuous delivery; All actions are automatically controlled by the programming controller.

　　3）双组两罐串联是将两个单组两罐串联的形式并联在一起。主要特点是：当一组输送时，第二组进料，两组交替运行；当第一组物料即将输送完毕时，进气阀和输料阀关闭，下仓泵内贮存的气压通过均压管进入上仓泵，在气压相同的相同下，装料阀打开，物料进入下仓泵内，即节省耗气量又降低能耗。

　　3) Double group two tank series connection is a form of connecting two single group two tanks in series in parallel. The main feature is that when one group is transported, the second group feeds, and the two groups run alternately; When the first group of materials is about to be transported, the inlet valve and the feeding valve are closed, and the air pressure stored in the lower compartment pump enters the upper compartment pump through the pressure equalization pipe. At the same air pressure, the loading valve opens and the materials enter the lower compartment pump, saving air consumption and reducing energy consumption.

　　上述是我们以常用的沸腾式仓泵梳理的间歇和连续气力输灰仓泵工作原理；因仓泵的类型不同，故其工作原理也不同；鑫鲁泉盛专注于粉粒料气力输送，若需要请随时联系。

　　The above is the working principle of intermittent and continuous pneumatic ash conveying bin pumps that we have sorted out using commonly used boiling bin pumps; Due to the different types of warehouse pumps, their working principles are also different; Xinlu Quansheng specializes in pneumatic conveying of powder and granular materials. Please feel free to contact us if needed.

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