成都深槽型帶式輸送機概述

核心提示：成都輸送(song)設備中深槽(cao)型帶(dai)式輸送(song)機是通(tong)過增加托輥組的槽(cao)深，使輸送(song)帶(dai)

成(cheng)都(dou)深(shen)槽型帶式(shi)輸送(song)機概(gai)述(shu)

成都輸送設備中深槽(cao)型帶式輸(shu)(shu)(shu)送(song)機(ji)是(shi)通過增加(jia)托輥(gun)組(zu)的槽(cao)深，使輸(shu)(shu)(shu)送(song)帶擠壓物料(liao)(liao)，從而增大了(le)物料(liao)(liao)和輸(shu)(shu)(shu)送(song)帶之(zhi)(zhi)間的摩擦(ca)力，以及(ji)增大了(le)物料(liao)(liao)之(zhi)(zhi)間的內摩擦(ca)，以達到提高輸(shu)(shu)(shu)送(song)傾(qing)角的目的。托輥(gun)組(zu)可以果用吊掛成固定方式。國(guo)內主要(yao)研(yan)制單位有原沈陽起重運輸(shu)(shu)(shu)機(ji)械廠(chang)、煤(mei)炭(tan)科(ke)學研(yan)究(jiu)總(zong)院(yuan)上海分院(yuan)、東北大學，前蘇聯、美國(guo)、英國(guo)都(dou)有研(yan)制。煤(mei)炭(tan)科(ke)學研(yan)究(jiu)總(zong)院(yuan)上海分院(yuan)經過現場原煤(mei)輸(shu)(shu)(shu)送(song)試驗，原煤(mei)相對濕(shi)度5.37%~8.64%，塊煤所占百(bai)分比(bi)3.73%~100%，帶速為2~3.15m/s，相應輸(shu)送量為324~510/h，最大(da)啟動加速度0.33m/s2，最大(da)制動(dong)減速度0.14m/s2，最大(da)輸送傾角上運(yun)達28°，下運達25°。北京東方輸送機有限公司研(yan)制了U帶式輸(shu)送機(ji)。

深槽型帶式輸(shu)送(song)機(ji)提高輸(shu)送(song)傾角的(de)原理

帶(dai)式(shi)(shi)輸(shu)(shu)(shu)(shu)送(song)(song)機輸(shu)(shu)(shu)(shu)送(song)(song)物(wu)料時必須保證物(wu)料和(he)輸(shu)(shu)(shu)(shu)送(song)(song)帶(dai)之間(jian)不產(chan)生相(xiang)對運動。當(dang)輸(shu)(shu)(shu)(shu)送(song)(song)線路有(you)傾(qing)(qing)角時，物(wu)料和(he)輸(shu)(shu)(shu)(shu)送(song)(song)帶(dai)之間(jian)的(de)靜摩擦力保證了(le)物(wu)料相(xiang)對于輸(shu)(shu)(shu)(shu)送(song)(song)帶(dai)處(chu)于靜止狀態。由于物(wu)料與輸(shu)(shu)(shu)(shu)送(song)(song)帶(dai)間(jian)的(de)摩擦角取決(jue)于物(wu)料和(he)輸(shu)(shu)(shu)(shu)送(song)(song)帶(dai)間(jian)的(de)摩擦因數，因而通用帶(dai)式(shi)(shi)輸(shu)(shu)(shu)(shu)送(song)(song)機輸(shu)(shu)(shu)(shu)送(song)(song)物(wu)料的(de)最大(da)(da)傾(qing)(qing)角受(shou)到了(le)限制。穩定運行的(de)通用帶(dai)式(shi)(shi)輸(shu)(shu)(shu)(shu)送(song)(song)機的(de)最大(da)(da)傾(qing)(qing)角應該滿足p1 cosmas≥也就是mx≤ arctan=pr。

式中g物料與輸送帶(dai)間的摩擦角(jiao)；

物(wu)料和輸送(song)帶(dai)之(zhi)間的(de)摩擦因(yin)數(shu)

輸送機的(de)最大傾角

實際上，由于輸送(song)機在啟動和制(zhi)動時慣性力(li)的作用，輸送(song)機的最大(da)傾角要小(xiao)于

要增大(da)輸送物料(liao)(liao)的傾角(jiao)，就要增加物料(liao)(liao)和輸送帶間的摩擦力、物料(liao)(liao)之間的內摩擦力，這

就(jiu)需要對物料施(shi)加壓力(li)，當對質量(liang)為m的物料施(shi)加(jia)壓力F時，有p1(cos6mx+F)≤ sinomaF=F/(mg)。