The company PTK “Ugleprom” is engaged in the construction of a paper mill for the production of sanitary and hygienic types of paper in the city of Pavlograd. paper-making equipment.
- General information about the car.
- Name – paper making machine.
- Designation – BP-82.3.
- The release date is 1989. She was involved in the work for up to 2 years.
- Manufacturer – NPO Petrazavodskbummash.
- Basic technical data and characteristics.
2.1. The purpose of the BP-82.3 paper machine (hereinafter referred to as the machine) is for the production of sanitary and hygienic (toilet) paper weighing 1 m ^ 2 (32 +/- 5) g with the use of up to 100% waste paper in the composition.
2.2. Paper web width, mm:
- edged, not less than 2520;
- on the roll of the car, not less than 2570.
2.3. Machine speed, m / s (m / min):
- the highest working calculated (when producing uncryped paper
- weighing 1m ^ 2 27.8) 9.38 (563);
- auxiliary 0.33-0.50 (20-30);
- by drive, not less than 15 (900).
2.4. The stable speed regulation range is 1: 3.
2.5. Mass performance of the machine:
- the highest calculated hourly (gross), t / h 2.412;
- the highest daily allowance for continuous work for 24 hours (gross), t /
- day 57.9;
- annual with 339 working days a year, with 23 hours of work per day and
- a machine utilization rate of 0.82 t / year, not less than 15,000.
2.6. The maximum diameter of the wound paper roll on the reel, mm 1500.
2.7. The location of the machine drive is on the right along the paper path.
2.8. The location of the car is two-story.
2.9. The main installation dimensions of the machine, mm, no more:
- length (from the axis of the chest shaft to the axis of the roll-up cylinder) 23800;
- width (from the wall of the hood from the front side to the extreme point of the controlled drive) 10500;
- second floor elevation 6000; 4) height above the floor level of the second floor 8975.
2.10. Total power of installed electric motors, kW:
- variable drive 1466.6;
- unregulated drive 2488.3;
- heating plant (supplied by Voith) 426.6
2.11. Machine weight with spare parts (without heating center) 622.
2.12. Mass fraction of waste paper in accordance with GOST 10700-84 for the manufacture of paper:
- MC3 (MC1, MC2), not less than 40%;
- MS 6 …………… .. not more than 20%;
- МС7 ……………… no more than 10%;
- MS10 ……………. Not more than 30%. The composition is specified during commissioning.
2.13. Characteristics of the mass in the machine pool:
- mass fraction of fiber,% 2.5;
- temperature, * C 15-30;
- pH of the medium, pH 5.5-7.0;
- grinding degree, * SHR 40-45.
2.15. Shrinkage of the paper web in width,% 3.
2.16. Estimated dryness of paper web,%:
- after pressing (after the second pressure roll) 36-38;
- after creping on a polishing cylinder 93-95.
- suction press 70;
- the first pressure roller 70;
- second pressure roller 90.
2.17. The largest calculated linear loads, kN / m:
2.18. Calculated value of vacuum in suction zones, MPa:
- chest shaft (backup shaft – new): I chamber 0.02; II chamber 0.008;
- suction boxes 0.015;
- couch-shaft (single-chamber (spare shaft – new)) 0.03;
- oversupply shaft (reserve shaft – new): I chamber 0.048; II chamber 0.027;
- the suction shaft of the press 0.075;
suction pressure roller of the polishing cylinder: I chamber 0.027; II chamber 0.075; III chamber 0.27; - slotted cloth washers 0.048.
2.19. Process steam:
- overpressure in the main steam pipeline, MPa, more than 1.3;
- excess pressure in the steam line for heating the polishing cylinder, MPa, not more than 0.3;
- excess pressure in the polishing cylinder, MPa, more than 0.9;
- mass flow rate for drying paper, kg / s 0.74;
- mass flow rate for heating fresh water for washing pressed felts, kg / s: Operating mode 0.31; At a break 0.5.
2.20. Drying air temperature in the high-speed drying hood, * С400-450.
2.21. Compressed air:
- overpressure at the inlet of the machine, MPa, not less than 0.6;
- volumetric flow rate, m3 / s, not more than 0.236 including: technological (air filling, defect blowing, etc.) 0.056; power (to actuators in accordance with GOST 17433-80) 0.14; instrument (instrumentation) 0.04.
2.22. Fresh water:
- excess pressure in the main water supply, MPa, less than 0.35;
- volumetric flow rate, m ^ 3 / s, no more than 0.02
- volumetric flow rate taking into account the use of clarified water, m ^ 3 / s, no more than 0.06.
2.23. Fresh water quality indicators (provided by the customer):
- mass concentration of suspended solids, mg / l, no more than 10;
- mass concentration of dissolved oxygen, mg / l, no more than 14;
- total mass concentration of hardness salts, mg / l, no more than 7;
- mass concentration of biochemical oxygen consumption for 5 days (〖BOD〗 _5), mg / l, not more than 2;
- pH value, pH 6.5-8.0.
2.24. Power supply parameters:
- high-voltage network voltage, V 10000 +/- 1000; 6000 +/- 600;
- low-voltage network voltage, V 380/220 +/- 38/22;
- frequency, Hz 50 +/- 1.
2.25. Specific costs per 1 ton of manufactured products (according to the estimated hourly productivity), no more:
- electric energy, kW * h 817.4;
- fresh water, m ^ 3 30;
- steam for drying, t 1.1.
2.26. Specific gravity (per daily productivity per t / h) 10.28.
