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蒸煮、洗选、氧脱木素和无元素氯的的三段漂(二)  

2008-07-23 12:07:09|  分类: 学科研究 |  标签: |举报 |字号 订阅

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5、蒸煮安全操作规程:

5. Safety operating rules of cooking

5.1、装锅检查完后操作程序。

5.1 Operation procedures after the tank filling check.

5.1.1接到专责通知后方可按如下顺序进行装锅。

5.1.1 The tank can only be filled according to the following procedures upon the receipt of notice from the specific owner.

5.1.2、电话联系备料车间准备装锅,放下装料套筒。

5.1.2 Call the stock shop for the tank filling preparation, and lay down the loading sleeve.

5.1.3、开启鱼鳞片阀,再开动可逆皮带输送机进行装锅,装锅过程中应注意调整料片流量。

5.1.3 Open the fish scale valve and start the reversible belt conveyer for the tank filling, pay attention to the adjustment of flux of material flakes during the tank filling process.

5.1.4、装满后停止大皮带及可逆皮带输送机,向专责报告,待专责同意后,打开上循环阀门,通知送液工打入碱液。

5.1.4 Stop the big belt and reversible belt conveyer after the tank is full; report to the specific owner; open the upper circulating valve upon the approval of specific owner; notify the liquor personnel to infuse the alkali liquor.

5.1.5、关闭鱼鳞片阀门

5.1.5 Close the fish scale valve.

5.1.6、升起套筒,清扫锅口再次检查密封圈上紧锅盖,检查是否到位,特别注意保险栓是否钩好。

5.1.6 Lift up the loading sleeve, clean the tank entrance, double check the seal knot, tighten the tank cover, check whether it is in right position, and particularly check whether the safety pin is well hooked.

5.2送液操作:

5.2 Liquor filling operation:

5.2.1接到专责通知送液后,打开白液出口阀送入计算好的全部白液。

5.2.1 Upon the receipt of notice from specific owner, open the white liquor outlet valve and infuse all calculated white liquor.

5.2.2、上盖后按工艺要求液化加入黑液量。

5.2.2 After the tank is covered, infuse the black liquor according to the techniques.

5.3升温操作程序:

5.3 Heating up procedures:

5.3.1打开药液加热器冷凝水阀门,排出冷凝水。

5.3.1 Open the condensation water valve on the liquor heater and drain out the condensation water.

5.3.2打开加热器蒸汽进口阀门,进行循环升温,开启阀门时不宜过急,应缓慢进行升温,升压。

5.3.2 Open the steam inlet on the liquor heater, conduct circular heating; do not haste in opening the valve, the temperature and pressure of heater should be increased slowly.

5.3.3循环升温过程中,应加强同各有关人员之间的联系,注意来汽总管压力温度和用汽流量调整上,中、下三点的温度,使其上下两点温度尽量保持一致。

5.3.3 Reinforce the contacts among all personnel concerned during the circular heating up process, pay attention to the pressure and temperature of incoming steam main pipe, regulate the temperatures of upper, middle and lower points with the steam flux, so as to maintain the temperatures of upper and lower points to be as same as possible.

5.3.4锅内温度达一定时,进行连续小放气,按锅内温度和压力情况,随时进行调节汽量及小放汽,150℃时取样测量锅内碱浓。

5.3.4 Conduct continuous minor steam discharging after the tank temperature has reached certain level, regulate the steam flux and conduct minor steam discharging in a timely manner, take sample from the tank at 150℃ to measure the alkali concentration.

5.3.5升到最高温度时,关闭所有进汽阀和排汽阀,进入保温阶段注意锅内压力和温度的变化,适量进行小放汽,排出假压总保温时间按150℃时碱液浓度定。

5.3.5 Close all the steam inlet valves and outlet valves when it has reached highest temperature, pay attention to the pressure and temperature variation during the heat preservation phase, conduct adequate minor steam discharging, the released false pressure and total heat preservation time depends on the alkali concentration at 150℃.

5.4放锅操作程序:

5.4 Discharging procedures:

5.4.1关闭上,下循环阀门。

5.4.1 Close the upper and lower circulating valves.

5.4.2关闭中循环阀门,停循环泵。

5.4.2 Close the middle circulating valve and stop the circulating pump.

5.4.3放锅泵电流达一定安培数后放锅。

5.4.3 Starting discharging when the electric current of discharging pump has reached certain ampere.

5.4.4认清锅号,打开放锅阀门。

5.4.4 Open the discharging valves of specific tank.

5.4.5待锅内压力降到0.2MPa时,打开上中循环阀门,利用循环管道内的药液压力冲刷锅篦以便放锅干净。

5.4.5 Open the upper and middle circulating valves when the pressure in the tank has reduced to 0.2Mpa, flush the tank comb with the liquor pressure in the circulating pipes so as to discharging completely.

5.4.6如一次未喷放完,应打足够黑液,上部进汽升到0.4—0.5mpa时再次喷放,直到完为止。

5.4.6 If it cannot be discharged completed in one time, then infuse enough black liquor, infuse steam to the upper part to 0.4-0.5Mpa then conduct another discharging until it has been discharged completely.

5.4.7关好放锅大门,停止锅泵。

5.4.7 Close the discharging gate and stop the tank pump.

5.4.8在喷放锅内取样,送化验站化验粗浆质量。5.4.8 Take sample from the blow tank and send it to the lab for brown pulp quality test

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