倉(cāng)泵又稱(chēng)倉(cāng)式泵、發(fā)送罐，是一個(gè)密封壓力容器；其作用是將物料裝入倉(cāng)泵內(nèi)與壓縮空氣混合后經(jīng)輸料管輸送物料至卸料點(diǎn)；倉(cāng)泵輸送系統(tǒng)分間歇輸送和連續(xù)輸送兩種，主要取決于它的結(jié)構(gòu)方式，單倉(cāng)泵是間歇輸送，雙倉(cāng)泵為連續(xù)輸送。倉(cāng)泵具有輸送平穩(wěn)、混合比高，廣泛用于粉粒裝物料的輸送，如藥粉、水泥、煤粉、粘土粉、面粉、碳酸鈣、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.

　　關(guān)于氣力輸灰倉(cāng)泵工作原理，鑫魯泉盛小編從倉(cāng)泵的間歇輸送和連續(xù)輸送予以簡(jiǎn)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:

　　氣力輸灰間歇倉(cāng)泵工作原理也可理解為單倉(cāng)泵的工作原理是結(jié)合流態(tài)化和氣固兩相流技術(shù)所研制的，其輸送技術(shù)的關(guān)鍵是必須將物料在倉(cāng)泵內(nèi)得到充分的流態(tài)化且是邊流化邊輸送，改懸浮式氣力輸送為流態(tài)化氣力輸送，是成熟可靠的氣力輸送技術(shù)之一；倉(cāng)泵控制常采用PLC程序控制與現(xiàn)場(chǎng)就地手操相結(jié)合的方式，每輸送一倉(cāng)飛灰即為一個(gè)工作循環(huán)，每個(gè)工作循環(huán)分為進(jìn)料階段、加壓流化階段、輸送階段、吹掃階段四個(gè)階段：

　　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. 進(jìn)料階段：進(jìn)料閥呈開(kāi)啟狀態(tài)，進(jìn)氣閥和出料閥關(guān)閉，倉(cāng)泵內(nèi)部與灰斗連通，倉(cāng)泵內(nèi)無(wú)壓力（與除塵器內(nèi)部等壓），飛灰源源不斷地從除塵器灰斗進(jìn)入倉(cāng)泵，當(dāng)倉(cāng)泵內(nèi)飛灰灰位高至與料位計(jì)探頭接觸，則料位計(jì)產(chǎn)生一料滿(mǎn)信號(hào)，并通過(guò)現(xiàn)場(chǎng)控制單元進(jìn)入程序控制器。在程序控制器控制下，系統(tǒng)自動(dòng)關(guān)閉進(jìn)料閥進(jìn)料狀態(tài)結(jié)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. 加壓流化階段：進(jìn)料閥關(guān)閉，打開(kāi)進(jìn)氣閥，壓縮空氣通過(guò)流化盤(pán)均勻進(jìn)入倉(cāng)泵，倉(cāng)泵內(nèi)飛灰充分流態(tài)化，同時(shí)壓力升高，當(dāng)壓力高至雙壓力開(kāi)關(guān)上限壓力時(shí)，由雙壓力開(kāi)關(guān)輸出上限壓力信號(hào)至控制系統(tǒng)，系統(tǒng)自動(dòng)打開(kāi)出料閥，加壓流化階段結(jié)束，進(jìn)入輸送階段。

　　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. 輸送階段：出料閥打開(kāi)，此時(shí)倉(cāng)泵一邊繼續(xù)進(jìn)氣，飛灰被流態(tài)化，灰氣均勻混合；一邊氣灰混合物通過(guò)出料閥進(jìn)入輸灰管道且輸送至灰?guī)欤藭r(shí)倉(cāng)泵內(nèi)壓力降低至雙壓力開(kāi)關(guān)整定的下限壓力值時(shí)，輸送階段結(jié)束，進(jìn)入吹掃階段，但此時(shí)進(jìn)氣閥和出料閥仍保持開(kāi)啟狀態(tài)。

　　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. 吹掃階段：進(jìn)氣閥和出料閥仍開(kāi)啟，壓縮空氣吹掃倉(cāng)泵和輸灰管道，此時(shí)倉(cāng)泵內(nèi)已無(wú)飛灰，管道內(nèi)飛灰逐漸減少，最后幾乎呈空氣流動(dòng)狀態(tài)。系統(tǒng)阻力下降，倉(cāng)泵內(nèi)壓力也下降至一穩(wěn)定值。吹掃的目的是吹盡管路和泵體內(nèi)殘留的飛灰，以利于下一循環(huán)的輸送。定時(shí)一段時(shí)間后，吹掃結(jié)束，關(guān)閉進(jìn)氣閥、出料閥，然后打開(kāi)進(jìn)料閥，倉(cāng)泵恢復(fù)進(jìn)料狀態(tài)。至此，四個(gè)階段的一個(gè)輸送循環(huán)結(jié)束，重新開(kāi)啟下一個(gè)輸送循環(huán)。

　　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.

　　說(shuō)完單倉(cāng)泵氣力輸灰系統(tǒng)的工作原理，鑫魯泉盛小編再講講連續(xù)氣力輸灰倉(cāng)泵工作原理也可理解為雙倉(cāng)泵連續(xù)氣力輸送，需注意的是連續(xù)氣力輸灰倉(cāng)泵工作原理取決于其組合形式，詳細(xì)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）倉(cāng)泵單組兩罐并聯(lián)是一種常用的連續(xù)氣力輸送方法，一臺(tái)倉(cāng)泵輸送時(shí)，另一臺(tái)倉(cāng)泵加料；當(dāng)?shù)谝慌_(tái)輸送結(jié)束后，由切換閥轉(zhuǎn)換；這些過(guò)程動(dòng)作由電氣控制和檢測(cè)系統(tǒng)來(lái)實(shí)現(xiàn)。這種布置方式存在的缺點(diǎn)是：當(dāng)一臺(tái)倉(cāng)泵輸送時(shí)另一臺(tái)發(fā)送罐必須將容器內(nèi)氣壓排空才可裝料，這一過(guò)程使耗氣量增加、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）單組兩罐串聯(lián)是由上、下兩倉(cāng)泵鉛直串聯(lián)組成，兩容器由裝料閥連接且有均壓閥及管道聯(lián)通；上、下倉(cāng)泵均有料位控制計(jì)，控制罐內(nèi)物料量。進(jìn)料時(shí)，首先將下倉(cāng)泵的輸送壓力通過(guò)均壓閥送入上倉(cāng)泵，在兩器均壓的條件下給料。給料結(jié)束后，裝料閥、均壓閥關(guān)閉，排氣閥打開(kāi)，上倉(cāng)泵內(nèi)氣壓全部排空再進(jìn)行加料；裝滿(mǎn)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，保證連續(xù)輸送；全部動(dòng)作均由編程控制器自動(dòng)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）雙組兩罐串聯(lián)是將兩個(gè)單組兩罐串聯(lián)的形式并聯(lián)在一起。主要特點(diǎn)是：當(dāng)一組輸送時(shí)，第二組進(jìn)料，兩組交替運(yùn)行；當(dāng)?shù)谝唤M物料即將輸送完畢時(shí)，進(jìn)氣閥和輸料閥關(guān)閉，下倉(cāng)泵內(nèi)貯存的氣壓通過(guò)均壓管進(jìn)入上倉(cāng)泵，在氣壓相同的相同下，裝料閥打開(kāi)，物料進(jìn)入下倉(cāng)泵內(nèi)，即節(jié)省耗氣量又降低能耗。

　　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.

　　上述是我們以常用的沸騰式倉(cāng)泵梳理的間歇和連續(xù)氣力輸灰倉(cāng)泵工作原理；因倉(cāng)泵的類(lèi)型不同，故其工作原理也不同；鑫魯泉盛專(zhuān)注于粉粒料氣力輸送，若需要請(qǐng)隨時(shí)聯(lián)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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