Basic technical requirements for painting workshop

Basic technical requirements for painting workshop design

1 Basic technical requirements for coating workshop design

1.1 production program and workshop layout

according to the requirements of production scale, the coating area of the coating room needs to be completed every year is about 800000 square meters, the annual working days are calculated as 280 days, and the sand blasting period of each shift is about 8 hours; According to the plan, the plant in phase I is provided with 2 spraying and 1 painting. Fair and correct operation method

according to the shape ruler divided by production sections, the weight (counterweight) with known weight in advance is adjusted to be called "f calibration" inch and section product. According to the ship type already built by the company and with reference to other design ship types, the standard projection size is l2m × 12m and height of 5 ~ 10m, the sectional area is about 500 ~ 800 square meters, so the daily normal processing capacity of each sand room is about 1000 ~ 1600 square meters, which basically meets the annual capacity requirements. According to the above conditions, the layout and dimensions of the painting workshop are as follows:

2 sandblasting rooms: 30m (L) *24m (W) *13m (H)

central machine room: 30m (L) *10m (W) *14m (H)

1 painting room downstream docking electronic industry and automobile manufacturing room: 43M (L) *24m (W) *13m (H)

2.1 design of process flow and main technical parameters room, 2 rooms are sand blasting rooms and 1 room is painting room. The layout is garage type

2.2 structural requirements of the coating workshop

3mm steel plate shall be laid on the inner wall of the sand blasting room, and 12mm steel plate shall be laid on the ground as the protective layer. The rear machine room is of concrete structure. The painting plant is connected with the machine room on the building. The flexible lifting gate is adopted for the gate. The access door between the sand blasting room and the machine room is a ship watertight door

2.3 determination of main technical parameters

the annual completed area is about 800000 square meters, the annual working day is 280 days, and the sand blasting period of each shift is 8 hours

total number of sand blasting machines: 8 sets of 4 guns for one machine and 4 sets of 2 guns for one machine for continuous operation

sand blasting period: 8 hours

abrasive pickup time: 4 hours

total sand storage capacity of the storage barrel: 480 tons (240 tons each)

dehumidification and ventilation of coating workshop: Dehumidifier shall be used for dehumidification. During sand blasting, the workshop shall be ventilated for 10 times per hour. During painting, the workshop shall be ventilated for 6 times per hour

during sand blasting, the dusty air must be reasonable to ensure that the dust concentration at the discharge port is below 120mg/m3. The paint mist removal filter must be equipped during paint spraying. The filtered paint mist concentration must be less than l00mg/m3. The air filtered by the paint mist is discharged high through the chimney