CA-JCG膠帶式稱重給煤機

CA-JCG膠帶式稱重給煤機

CA-JCG Belt coal weigh feeder
        CA-JCG膠帶式稱重給煤機采用的動態(tài)稱重技術，結合XA-FIP控制系統(tǒng)一起使用，CA-JCG膠帶式給煤機稱重精確、控制穩(wěn)定可靠。針對現(xiàn)場使用情況，CA-JCG膠帶式給煤機皮帶寬度從500毫米到1400毫米，皮帶長度從2米到38米，給煤機耐壓外殼采用優(yōu)質碳鋼制成，制造和密封程度能夠承受0.35Mpa的爆炸壓力。滿足了各種用戶的需要。
        為保證系統(tǒng)長期的精度和可靠性，興奧采用全懸浮式稱重橋架測量物料重量，XA-FIP控制系統(tǒng)顯示瞬時流量、累計流量以及與設定點差值和其他可選參數(shù)，同時指示各種狀態(tài)和報警，并為遠程監(jiān)控提供輸出。同時與DCS實現(xiàn)遠程通訊。

工作原理
　　在典型的煤粉型鍋爐給煤系統(tǒng)中，給煤機通常安裝在煤倉下方用來將煤炭按照一定的流量連續(xù)輸送到磨煤機里。給煤機和煤倉通過進口煤溜槽相連接，煤炭直接壓在給煤機的進口皮帶上。系統(tǒng)運行時皮帶上的煤炭通過稱重區(qū)域，安裝在稱重橋架下方的兩只高精度應變式稱重傳感器實時檢測煤炭的瞬時重量。
　　安裝在尾部滾筒上的數(shù)字式速度傳感器對皮帶速度進行連續(xù)測量，速度傳感器安裝在尾部滾筒上以保證皮帶速度的精確測量，防止由于皮帶打滑造成的速度不準確。
　　速度信號和重量信號通過賽摩給煤機控制器的計算可以得到給煤的瞬時流量和累計量?？刂破鲗⒘髁啃盘柵c燃燒控制室期望的流量信號進行比較，通過PID調節(jié)輸出控制信號給變頻器以動態(tài)調節(jié)皮帶速度，從而保證給磨煤機的連續(xù)、均勻、定量給煤。煤炭經(jīng)過給煤機后通過出口溜槽進入磨煤機。
 
主要特征 
●　給煤機堅固的封閉外殼采用耐壓結構設計，密封嚴密可防止漏風和煤粉外漏，并能經(jīng)得住0.35Mpa的壓力； 
●　所有出軸點采用盤根密封，滿足設備承壓要求； 
●　前后檢修門采用卡槽式結構，檢查窗采用盲孔結構連接，有效提高密封效果； 
●　設有密封風接口，采用多點式出風結構，提高密封效果，有效隔離熱風； 
●　給煤機為平托輥結構，皮帶采用環(huán)形無接頭裙邊阻燃膠帶，裙邊高度為40mm； 
●　主動滾筒表面具有人字型橡膠層，驅動力強，防止皮帶跑偏； 
●　從動滾筒采用腰鼓形以及自清潔結構，能有效防止膠帶跑偏和粘煤現(xiàn)象； 
●　尾部滾筒采用螺旋式張緊結構，機體外就能進行調節(jié)； 
●　回程皮帶裝有重力式自動糾偏裝置，確保皮帶正常運行不跑偏； 
●　主、從動滾筒支承采用帶座軸承，潤滑均在殼體外部; 
●　托輥直徑89mm，鋼面圓柱形，相對于托輥軸的徑向跳動較小，有利于計量； 
●　給煤機設有自動糾偏裝置，自行校正皮帶跑偏； 
●　給煤機皮帶外清掃采用重錘刮板式； 
●　給煤機底部采用鏈式刮板輸送機對飛灰進行清掃； 
●　給煤機兩端設有方便的檢修端門，帶有觀察窗； 
●　給煤機機體上設有多個照明燈，燈泡在不停機的情況下可方便的進行更換； 
●　進口部分設有滑動調節(jié)式整形門，保證料流均勻； 

CA-JCG Belt coal weigh feeder using the world's most advanced dynamic weighing technology, combined with XA-FIP control system used in conjunction with, CA-JCG Belt coal weigh feeder precision, control is stable and reliable. For on-site use, CA-JCG Belt coal weigh feeder belt widths from 500 mm to 1400 mm belt length from 2 meters to 38 meters, to coal pressure shell made ??of high quality carbon steel, manufacturing and sealing extent can withstａnd 0.35Mpa explosion pressure. To meet the needs of various users.

         In order to ensure the long-term accuracy and reliability of the Austrian-with full suspension weighing bridge measuring material weight, XA-FIP control system displays instantaneous flow rate, total flow, and the difference with the set point and other optional parameters, and instructed kind of status and alarm output for remote monitoring. Simultaneously with the DCS remote communication.

Works

In a typical pulverized coal boiler systems, the stoker coal bunker is usually installed in the bottom of the coal used in accordance with a certain flow continuously fed to the mill inside. To the coal and imported coal chute through the coal bunker is connected directly to the pressure in the coal import coal feeder belt. The system is running on the coal belt area by weighing, weigh bridge installed in the bottom of two high-precision strain gauge load cell instantaneous real-time detection of coal weight.

Mounted on the tail pulley digital speed sensor for continuous measurement of belt speed, the speed sensor is mounted on the tail pulley so as to ensure accurate measurement of the speed of the belt to prevent slipping of the belt caused by the speed is not accurate.

Speed ??signal and weight signals through Zamore coal feeder controller to the coal can be calculated instantaneous flow rate and total volume. The traffic signal controller desired flow and combustion control room signal is compared by PID regulator output control signal to the inverter to dynamically adjust the belt speed, thus ensuring a mill continuous, uniform, quantitative coal. After the stoker coal after entering through the exit chute mill.

Features

● stoker closed shell withstａnd rugged design, sealed tight to prevent leakage of air leakage and coal, and can withstａnd the pressure of 0.35Mpa;

● All the pivot point coil packing pressure to meet the equipment requirements;

● Front access door using slot structure, check the connection window with blind hole structure, effectively improve the sealing effect;

● A sealing air interfaces, multi-point the wind structure, improve the sealing effect, effectively isolating the hot air;

● coal feeder structure for the flat roller, belt skirt the ring without joints retardant tape, skirt height is 40mm;

● Active roller surface with a herringbone rubber layer, driving ability, to prevent belt deviation;

● slave cylinder with drum-type and self-cleaning structure, can effectively prevent caking coal belt run and phenomena;

● spiral tail pulley tensioning structure outside the body can be adjusted;

● return belt equipped with gravity automatic correction device, to ensure normal operation of the belt no deviation;

● The primary use of seat belt driven roller bearing bearing lubrication are outside the housing;

● roller diameter 89mm, steel cylindrical surface, relative to the roller shaft runout less conducive to measurement;

● coal feeder with automatic correction device, self-correcting belt deviation;

● outside cleaning coal feeder belt scraper using hammer;

● coal feeder bottom of the chain scraper conveyor for fly ash for cleaning;

● coal feeder ends with easy access side door with viewing window;

● coal feeder body has a plurality of lights, bulbs in the case of non-stop can easily be replaced;