【正文】 Have, install on conveyer belt tail clan hopper export blocking modes in Chinese operatic music tear, split open, imprison。 4 結(jié)束語 目前我國廠礦企業(yè)正處在從粗放型向集約型、從勞動密集型向技術(shù)密集型模式轉(zhuǎn)變的過程之中，如何在減少人員投入的情況下，又能保證生產(chǎn)安全、增加效率和效益、提高自身的市場競爭力，是擺在每個企業(yè)面前的一個重要課題。結(jié)構(gòu)緊湊、安裝簡便、性能可靠、免維護 是未來各種狀態(tài)檢測裝置發(fā)展的必然方向。高端產(chǎn) 品市場基本被國外品牌瓜分，國內(nèi)尚沒有具備較強競爭力和影響力的品牌。 按 照不同的檢測手段和工作原理劃分，主要有安裝在輸送帶上方的懸臂式或鏈錘式料流開關(guān)、安裝在輸送帶下方的稱重式料流開關(guān)兩種。 打滑開關(guān)的種類比較多，工作原理和檢測方法也各有不同。 拉繩開關(guān)通常都有常閉、常開接點 各 1 個，一般使用常閉接點。如何使帶式輸送機保護裝置高效、可靠、穩(wěn)定地在生產(chǎn)運行中充分發(fā)揮作用有著十分重要的現(xiàn)實意義。 本文討論的對象主要是拉繩開關(guān)、跑偏開關(guān)、打滑開關(guān)、撕裂開關(guān)、料流開關(guān)、堵料開關(guān)等帶式輸送機的一次保護裝置。由于拉繩開關(guān)數(shù)量較多，為了節(jié)省電纜，通常一條帶式輸送機所有拉繩開關(guān)的常閉接點串聯(lián)后接入帶式輸送機的分合閘控制回路；對于很長的帶式輸送機，有時采用將沿線拉繩開關(guān)分段分組接入的方式。比如按照檢測方法劃分，有直接檢測輸送帶速度并與設(shè)定的標準速度比較的觸輪式打滑開關(guān)，有檢測從動輪轉(zhuǎn)速并與設(shè)定的標準轉(zhuǎn)速比較的打滑開關(guān)，有同時分別檢測滾筒轉(zhuǎn)速和輸送帶速度并進行比較的對比式打滑開關(guān)；按照內(nèi)部工作原理分，有磁阻式、磁電式、光敏式等等。 堵料開關(guān) 3 堵料開關(guān)是安裝在落料斗或儲料倉內(nèi)檢測料位的一種保護裝置。另外，缺少行業(yè)標準也是國內(nèi)帶式輸送機保護裝置產(chǎn)品質(zhì)量良莠不齊的一個重要原因。 第三，應(yīng)用新的檢測技術(shù)和檢測手段，針對當前帶式輸送機保護裝置使用過程中的缺點和不足，開發(fā)更能有效反映輸送機運行狀態(tài)的、性能更為可靠和穩(wěn)定的保護裝置。包括帶式輸送機保護裝置在內(nèi)的狀態(tài)檢測裝置的改進必定能夠提高廠礦企業(yè)設(shè)備運行的可靠性、穩(wěn)定性，并最終體現(xiàn)為生產(chǎn)效率的提高。 In addition, there are vibration reaction types that are torn and split open and shut in etc.. The material flows and turns on or off Material flow switch to measure conveyer belt pay, have protectors of supplies, some products can distinguish different flow size, can also offer and overload to call the police when the flow is oversize. Material flow switch used for, touch off dustfall cleaner such as water spray equipment and dust remover,etc. interlock and work also sometimes. Divide according to different detection means and operation principle, have, install in transport with top cantilever type or chain hammer type material flow switch, install material two kinds of switches shed in conveyer belt low person who weigh mainly. Stop up the material switch Stop up material switch to install in hopper of falling or store material measure material a 劉寶興：大傾角膠帶輸送機控制系統(tǒng)設(shè)計 8 kind of protector of location in the storehouse. Conveyer system of bringing etc. two conveyer fall through tube hopper feed through usually, supplies will stop up full to set the hopper and even overflow in a large amount entirely quickly when falling in the hopper exit and is stopped up for various reasons operate. In fall upper position install, stop up material switch can stop up material to be that accident happen to call the police and can touch off emergency shutdown automatically initial stage in hopper, thus the conveyer belt preventing a large number of pieces of material from causing skids, drives serious consequences such as the overload of the electrical machinery,etc.. Stop up the material switch to divide according to different detection means and operation principle, have, hinder person who fasten mainly, radio frequency lead person who receive, electrode type, tuning fork type, activity block modes in Chinese operatic music, negative pressure type various forms. 2 questions are summarized From investigate situation may find out the majority of product store problems in of practical application, domestic products lack, improve, make a lot of problems not solved pletely for a long tim