
Contents
1. 总体介绍
2.液压系统
3.电气控制系统
4. 安装与调试
5. 操作
6. 维护
7.故障排除
General introduction
Dry ice pelletizer is a dry ice machine which makes dry ice pellets of liquid Co2.
- 外形尺寸L1450*W800*H1250mm,净重580kg
- 生产能力
干冰尺寸:直径3mm和16mm;
干冰密度:食品级≥1.50
干冰容量:50公斤/小时
- Co2和冰转化率≥40%
- 液态Co2含水量<50ppm;液态Co2输入压力≤2.0MPa。
Warning: It is forbidden to start ice machine if there is change on filling or pressure of liquid Co2 store tank.
5、Co2 gas comes out through one pipe with flange easy for recovery if necessary; and air discharge must keep open.
6、总功率3.7kw。
Hydraulic system
一、技术规格
A、最大系统压力为21MPa;
2、正常工作压力小于18MPa;
3、泵流量为31L/min;
4、电机功率:3.7KW;
5、油箱140升;
6、油箱尺寸为80*45*40mm
2、National standard 46#, 56#,68# new anti-wear hydraulic oil (Hydraulic oil should be 17-23 CST on kinematic viscosity and oil pollution should be below grade 12, NAS standard.); fill oil through oil hole to top-limit of oil gauge(around total 350L hydraulic oil required). Clean each 6months and replace oil each 12months.
3、系统压力测试
电机按Δ接线方法接线,并保证顺时针方向正确。启动油泵,调节溢流阀控制系统压力。系统压力值将显示在左侧压力表上。而该系统压力为21MPa。建议:在满足机器功率要求的情况下,最好选择较小的压力。这样可以降低功耗;机器出厂前我们已经将系统压力调好在18-21Mpa之间。
4、压力继电器测试
压力继电器在出厂前已经过测试和调整。正常工作时,若启动过早或无任何动作,可通过压力继电器末端的按钮手动调节压力继电器;顺时针方向增加压力,逆时针方向减少压力。
5、注意事项:

A、油位偏低,吸油滤清器容易吸入空气,系统会振动,解决方法是:向油箱加油,让油位超过液位计,空转油箱数次,将油箱内的空气排出。
B、每6个月清洁一次吸油过滤器。
C、电磁换向阀和电磁溢流阀的电压为220V,因此要保证电压不低于220V。
Electric controls system

进线为三相四线,尺寸为2.52毫米;将220VAC、三相50Hz的电源进线和零线接入机器右上方进线盒,并按电气规定拧紧。
Warning: the machine must be safely grounded!
Installation and commission
1安装

地面必须平整光滑,并固定好机脚。输送管及阀门管径不小于φ10,压力1.6~2.0MPa,液管必须保温。
Warning: dry ice making shop should be well ventilated!
2启动制冰机
(1)打开电箱,按下并联断路器;
(2)接通进线箱主电源;
(3)松开船上“停止”按钮;
(4)在触摸屏上启动油泵电机;
(5)所有步骤均在触摸屏上操作。
Note: A.please observe if the motor runs clockwise during first time start.
B.after starting oil pump, you can manually adjust hydraulic system pressure and switch action pressure; system pressure is 21MPa when machine leaving factory.

Warning: It is strictly prohibited to reverse the oil pump
(6)根据加工要求设定加料时间和保压时间;
(7)选择手动或自动运行方式;
(8)下班后关闭所有电源。
Operation
1、首先手动打开外部液管阀门,让液态Co2进入机器。
2、然后启动电源、油泵、搅拌电机;按主缸进退,进给10秒,再按主缸进退,进给10秒,重复此动作数次。
Note: Feeding action is only started when main oil cylinder is at rear end;
Automation action is only started when main oil cylinder is back to end.
3、压缩箱完全冷却后,会自动制取干冰。
Notice: each time start machine, there is a lot of Co2 gas existing in pipes, users must blow compression box and dew by the Co2 gas.
4、干冰调节
A、通过调节添加Co2时间参数来调节干冰产量:YGBK-50-1的调节参数为0.4-0.5KG。如果小于0.45kg,会影响出冰量,如果大于0.5kg,会影响CO2气体排放,对机器不利。
B、调整干冰大小
干冰的长度可以通过调节搅拌电机的转速来调节。
不同的模具可以生产Φ3-Φ16不同尺寸的干冰颗粒。
Warning:
A Piston must be pushed at bottom when feed manually.
B when feeding solenoid valve cannot shut off, shut off feed ball valve (offered by user )immediately. C ice output at one time cannot exceed 0.5kg.
C it is forbidden to put your hands near the closing door of the compression box when the oil pump is running.
D Co2 is not toxic but high-density Co2 can make people suffocate; so it is necessary to keep dry ice factory well ventilated.
E solid form of Co2-dry ice, minus 78℃, can easily frostbite skins, so suitable insulation measures are a must when touch dry ice.
D dry ice easily sublimates and its expansion rate is 600 when it changes to gas; so it is not right to store dry ice in a completely sealed place with no gas out way.
Maintenance
1机器停止工作时应清理所有管道中的液态二氧化碳;断电后,应清洁机身并用布擦干。
2、检查是否有漏油现象;如果漏油,请拧紧螺钉或更换密封圈。
3、检查是否有掉漆现象;如有掉漆,应刷漆,以防生锈。