【摘要】：跳汰選煤在選煤中占有重要地位,占全國煤炭入選量的70%左右。但是由于受各種條件的限制,使跳汰機選煤的分選效率較低,因此對現(xiàn)有跳汰設備和操作工藝的自動化水平的進一步優(yōu)化具有重大意義。跳汰過程主要包括兩個部分：一是原煤的分層,二是產(chǎn)品的分離。而原煤的分層是跳汰產(chǎn)品分離的前提條件,它直接影響著跳汰選煤的分選效果。原煤的分層是在垂直交流水流的作用下完成的,而分層的產(chǎn)生又是以創(chuàng)層的松散為前提。所以,對跳汰設備和操作工藝的自動化水平的進一步優(yōu)化在跳汰選煤的發(fā)展和應用具有重要的意義。本文運用LabVIEW作為上位機發(fā)送控制命令,具有圖形化的操作界面,下位機選用DSP28335芯片與上位機進行串口通訊,同時作為步進電機的控制器,通過步進電機控制隔膜從而實現(xiàn)不同的跳汰曲線,進一步通過高速攝像機來進行對跳汰曲線分析處理以檢驗是否達到所需的曲線。實驗過程中通過負載的大小選取了步進電機的型號并完成了對步進電機出力的分析,設計了隔膜式跳汰機的外形及尺寸大小,并對隔膜式跳汰機進行了層次改進,進一步搭建了隔膜式跳汰機模型,為整個系統(tǒng)的實驗打下了基礎。本系統(tǒng)完成了硬件、軟件的設計,并通過軟件調(diào)試完成了上位機的編寫,上位機能夠與下位機通信成功,上位機的參數(shù)命令能夠被下位機接收,下位機通過接收的參數(shù)命令進行波形輸出,隔膜在齒條的帶動下驅動水流做規(guī)律性的運動,從而對床層進行分選,通過實驗進行了實際驗證,并通過實驗得到了不同的跳汰周期曲線,同時實現(xiàn)了對床層的分離,該系統(tǒng)在分選效果上取得了一定的效果。
[Abstract]:Jigging coal occupies an important position in coal preparation, accounting for about 70% of the national coal selection. However, due to the limitation of various conditions, the separation efficiency of jig coal preparation is low, so it is of great significance to further optimize the automation level of jigging equipment and operation technology. Jigging process mainly includes two parts: one is the stratification of raw coal, the other is the separation of products. The stratification of raw coal is the precondition of jigging product separation, which directly affects the separation effect of jig coal. The stratification of raw coal is completed under the action of vertical alternating flow, and the formation of stratification is based on the looseness of the creating layer. Therefore, it is of great significance to optimize the automation level of jigging equipment and operation technology in the development and application of jigging coal. In this paper, LabVIEW is used as the upper computer to send control commands, with a graphical operation interface. The lower computer uses DSP 28335 chip to communicate with the host computer and acts as the controller of the stepper motor at the same time. Furthermore, the diaphragm jig model is built, which lays the foundation for the experiment of the whole system. The system completes the design of hardware and software, and completes the programming of the upper computer through the software debugging. The upper computer can communicate successfully with the lower computer, and the parameter commands of the upper computer can be received by the lower computer. The lower machine carries on the waveform output through the received parameter command, the diaphragm drives the water flow to do the regular movement under the rack drive, thus carries on the sorting to the bed, has carried on the actual verification through the experiment,
【學位授予單位】：安徽理工大學
【學位級別】：碩士
【學位授予年份】：2016
【分類號】：TD94;TP273

【相似文獻】

相關期刊論文 前7條

1 陳清如;;跳汰水流運動特性(跳汰周期)對分選過程作用的研究[J];煤炭學報;1964年03期

2 張維慶;胡永生;孫玉波;;粗、中粒合理跳汰周期曲線的研究[J];煤炭科學技術;1986年04期

3 李正驊;劉學海;;跳汰周期曲線的研究[J];有色金屬(選礦部分);1991年03期

4 魏德洲;孫玉波;;細粒跳汰周期曲線的研究[J];有色金屬(選礦部分);1985年03期

5 吳壽培;;跳汰機的數(shù)控電磁風閥[J];煤炭科學技術;1982年07期

6 D.施奈德 ,付曉恒;處理-2mm難選粉煤的半工業(yè)性跳汰機[J];選煤技術;1988年01期

7 ;[J];;年期

相關碩士學位論文 前1條

1 耿海洲;基于LabVIEW以及DSP實現(xiàn)任意跳汰周期的控制系統(tǒng)[D];安徽理工大學;2016年

，

本文編號：2126078