本文選題：膠帶運(yùn)輸機(jī) + 物料平衡方程��； 參考：《西安科技大學(xué)》2017年碩士論文

【摘要】：膠帶運(yùn)輸機(jī)是煤礦生產(chǎn)運(yùn)輸?shù)闹饕O(shè)備之一。在實(shí)際生產(chǎn)中,由于煤炭開采的不確定性,膠帶運(yùn)輸系統(tǒng)經(jīng)常處于空載和輕載運(yùn)行狀態(tài),其造成膠帶運(yùn)輸系統(tǒng)能量損耗大和不必要的設(shè)備磨損等問題。通過闡述問題產(chǎn)生的原因,根據(jù)節(jié)能運(yùn)行理論可以實(shí)現(xiàn)系統(tǒng)的節(jié)能和減小設(shè)備的損耗,提高企業(yè)效益等,所以對膠帶運(yùn)輸系統(tǒng)進(jìn)行優(yōu)化控制研究具有重要的意義。本文通過分析膠帶運(yùn)輸機(jī)的運(yùn)行阻力來研究膠帶運(yùn)輸機(jī)的能耗關(guān)系,根據(jù)能耗關(guān)系得出節(jié)能運(yùn)行的理論基礎(chǔ)和途徑。依據(jù)節(jié)能運(yùn)行理論得出膠帶運(yùn)輸機(jī)節(jié)能運(yùn)行優(yōu)化控制目標(biāo)函數(shù),即負(fù)載一定且正常生產(chǎn)的工況下,減小膠帶運(yùn)輸機(jī)的帶速使其填充率最大得出優(yōu)化控制目標(biāo)函數(shù)的具體表達(dá)式。在此基礎(chǔ)上分析膠帶運(yùn)輸機(jī)空載和輕載時(shí)節(jié)能運(yùn)行的方法,首先通過實(shí)驗(yàn)驗(yàn)證節(jié)能運(yùn)行方法的可行性,然后根據(jù)實(shí)驗(yàn)得出膠帶運(yùn)輸機(jī)的節(jié)能率。針對煤礦膠帶運(yùn)輸系統(tǒng)的串聯(lián)型和并聯(lián)型結(jié)構(gòu),利用物料平衡方程分析其上下級膠帶運(yùn)輸機(jī)之間的關(guān)系,即運(yùn)量與單位時(shí)間內(nèi)運(yùn)輸?shù)奈锪弦欢〞r(shí),上級膠帶運(yùn)輸機(jī)帶速與填充率的乘積等于下級膠帶運(yùn)輸機(jī)帶速與填充率的乘積。利用膠帶運(yùn)輸機(jī)優(yōu)化控制目標(biāo)函數(shù)對其進(jìn)行研究。研究表明:負(fù)載一定時(shí),根據(jù)上級膠帶運(yùn)輸機(jī)煤料填充率和帶速可以得出下級膠帶運(yùn)輸機(jī)煤料填充率為最大時(shí)的最小帶速。以此類推,可以得出下級膠帶運(yùn)輸機(jī)優(yōu)化控制的最小帶速。整個(gè)膠帶運(yùn)輸系統(tǒng)優(yōu)化控制后的耗能是所有膠帶運(yùn)輸機(jī)在最小帶速下運(yùn)行時(shí)的耗能之和。最后將膠帶運(yùn)輸系統(tǒng)優(yōu)化控制的方法用于檸條塔煤礦主運(yùn)輸系統(tǒng)。防止出煤量溢出或堆煤,通過填充率和速度分區(qū)間的方法對檸條塔主運(yùn)輸系統(tǒng)優(yōu)化控制進(jìn)行設(shè)計(jì)。并通過具體系統(tǒng)完成對檸條塔主運(yùn)輸系統(tǒng)優(yōu)化控制的系統(tǒng)調(diào)試。結(jié)果表明檸條塔煤礦主運(yùn)輸系統(tǒng)優(yōu)化控制達(dá)到了設(shè)計(jì)要求。
[Abstract]:Belt conveyor is one of the main equipment in the production and transportation of coal mine. In actual production, due to the uncertainty of coal mining, the belt transportation system is often in the state of air load and light load, which causes large energy loss and unnecessary wear of equipment in the belt transportation system. The theory of line can realize the energy saving of the system, reduce the loss of the equipment and improve the efficiency of the enterprise. Therefore, it is of great significance to study the optimal control of the belt conveyor system. This paper analyzes the energy consumption relationship of the belt conveyer by analyzing the running resistance of the conveyor belt, and draws the theoretical basis of the energy saving operation according to the energy consumption relationship. According to the energy saving operation theory, the optimal control objective function of the energy saving operation of the belt conveyer is obtained, that is, the specific expression of the optimal control objective function is obtained by reducing the speed of the belt conveyor with the speed of the belt conveyer with a certain and normal production condition. On this basis, the energy saving operation of the conveyer conveyer is divided into empty and light load. Firstly, the feasibility of the energy saving operation method is verified by the experiment, and then the energy saving rate of the belt conveyor is obtained according to the experiment. According to the series and parallel structure of the coal belt conveyor system, the material balance equation is used to analyze the relationship between the upper and lower belt conveyer, that is, the transport volume and the material transported within the unit time must be carried out. The product of the belt speed and filling rate of the superior belt conveyer is equal to the product of the belt speed and the filling rate of the lower belt conveyer. The optimization control target function of the belt conveyer is used to study it. The study shows that the coal filling rate of the lower grade conveyor belt conveyer can be obtained when the load is fixed. The minimum speed of the belt conveyer optimal control can be obtained by this analogy. The energy consumption after the optimum control of the whole belt conveyer system is the energy dissipation of all belt conveyers running at minimum speed. Finally, the method of optimizing and controlling the belt conveying system is used in the main transportation system of the Caragana pagoda coal mine. The optimization control of Caragana main transportation system is designed by the method of filling rate and velocity partition, and the system optimization control of the main transportation system of Caragana tower is completed through the concrete system. The result shows that the optimization control of the main transportation system of the Caragana pagoda coal mine has reached the design requirements.

【學(xué)位授予單位】：西安科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TD634.1

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