This regulation specifies the content and requirements for safe operation beneficiation plant tailings slurry pump. This procedure is applicable to the position of the tailings conveying slurry pumping station of the concentrator. 2 content 2.1 The operator must be qualified after passing the safety training; wear protective helmets, gloves and other labor protection articles before going to work. Employees must wear three tight dresses; women workers must be in safety helmets, not wearing shorts, high heels, and slippers. 2.2 Comply with discipline, obey arrangements, and strictly follow the process requirements. 2.3 Familiar with the equipment of this post: 300ZBG(P) Q=1710m3/h slurry pump performance, maintenance and maintenance. 2.4 The safety guards of the equipment must be kept in good condition. 2.5 When turning the car, you must disconnect the power supply to prevent your hands and clothing from getting caught in the rotating part. 2.6 When dredging the pipeline, people should stand sideways to avoid liquid splashing on the human body. 2.7 When cleaning the pump pool, stop the machine and take safety precautions, and send special personnel for supervision. 2.8 Keep the equipment clean and free of obstacles, remove oil, mud and debris in time, clean the floor, and do not have slurry or water. 2.9 Pay attention to personal safety when handling manual valves at high places. 2.10 When using the slurry pump, use an emergency escape route to escape if there is an emergency. 2.11 It is prohibited to cross the rotating equipment when checking and operating various pumps. 2.12 It is forbidden to clean the toilet at the rotating position while the pump is running. 2.13 After the heavy-duty slurry pump stops working, it is necessary to flush the pipeline in time to prevent blockage and create conditions for the next drive. 2.14 Responsible for the environmental sanitation of the scope of this post, clean and hygienic work, and achieve civilized production. 2.15 Fill in the original record carefully and the writing is clear and intact. 2.16 Strictly implement the handover system. 3 Preparation and inspection contents of the slurry pump before driving 3.1 Before driving, it is necessary to check whether the suction valve is in the closed state, check the lubrication of each lubrication point; check the tightness of the bolts in each part. 3.2 Turn on the water pump, open the front water seal of the slurry pump, fill the pump chamber and open the exhaust valve. After filling the water, close the exhaust valve. Check the open shaft sealing water and check whether the shaft sealing water quantity and water pressure are suitable. Adjust the packing gland pressing screw. The shaft sealing water pressure is generally higher than the pump outlet pressure 0.1MPa. 3.3 Check that the sizing pipe valve is open. 3.4 Open the feed valve and the liquid level must exceed the suction line. 3.5 Check for debris around the device and start it after confirming normal. 4 Parking sequence and precautions 4.1 10 minutes before parking, it is necessary to inhale the clean water to keep the pipeline clean. The lower the liquid level of the slurry tank, the better, before closing the suction valve and opening the overflow valve. 4.2 After the tailings slurry pump stops, open the clean water valve in time, rinse the slurry pipeline, and close the clean water valve after the slurry pipeline clears water. 4.3 When a sudden accident stops, open the pipeline relief valve in time to prevent the slurry in the pump and pipeline from being blocked, and the tailings conveying pipeline is cleaned with clean water.
PP plastic, polypropylene, commonly known as "baijiao",Scientific name: polypropylene.
Description:
PP Plastic is a kind of semi crystalline material. It is more hard than PE and has a higher melting point. Due to the high crystallinity, the surface of the material stiffness and resistance to scratch characteristics very well. PP Plastic don't have the problem of environmental stress cracking.Polypropylene (PP Plastic) is a semi-crystalline thermoplastic.PP Plastichas high impact resistance, strong mechanical properties, resistance to many organic solvents and acid and alkali corrosion.
PP Plastic is widely used in industry and is one of the most common polymer materials.
Australian COINS are also made of polypropylene.
Polypropylene bonding:
K-720 is suitable for polypropylene PP plastic adhesion, suitable for large area plate lamination, high transparency, suitable for PP adhesion PP, PP adhesive PC, PP adhesive ABS,PP adhesive PVC, PP adhesive acrylic, PP sticky metal, PP stick wood.
K-7007 adhesion performance is roughly the same as k-720, light yellow and more economical.
K-620 is adhesive small area polypropylene PP glue, must be used with the k-650 treatment agent, the instant positioning, the strength is high.
Advantages:
1. Low density;
2. Heat resistance ;
3. Non deformation;
4. High stiffness;
5. High surface strength;
6. Good chemical stability;
7. Nontoxic and safe.
Disadvantage:
The main disadvantage of the fault polypropylene is that the high temperature rigidity is not enough, and the low temperature is brittle.
Poor environmental tolerance, outdoor use, easy to turn yellow and brittle.
Tensile strength of anisotropy, the products are easy to deform, continuous use of low temperature, high creep performance, and long - term load.
Poor printing performance.
Application:
1,Valve part, drinking water and sewage water pipe,
2,Sealing element, spraying carrier,
3,Corrosion-resistant trough and barrel, industrial applications that have acid and alkali-resistant requirement; wastewater and gas discharge equipment for industrial purpose,
4,Scrubbing tower, clean room, semiconductor plant and other related industrial equipment and machinery, food machinery and chopping board,
5,Electroplating process, toy part
Combustion characteristics: PP Plastic easy to burn, polypropylene from continue to burn after the fire, with the top of the flame is yellow, the bottom made in blue, with a small amount of smoke generated, burning melt dripping, and oil.
Specification: the thickness of PP sheet material can be produced from 0.3mm to 2mm, and the PP sheet material is of rolling material and width of 500-1000mm.
The thickness of the plate can be produced from 2mm to 200mm. The specification is 600*1200mm 1000*1000mm 1000* 2000mm. Other specifications can be customized as needed,and The diameter of the PP rod can be produced from 2mm to 250mm, the length is 1 meter, PP rod can be ordered to be more than 3 meters in length.
Color: white and black, other colors can be customized
Modified varieties: PP sheet have various enhancers and other auxiliaries can be added to make modified varieties, depending on the requirements
Storage methods:
Keep in tight, cool and dry place to ensure good ventilation
Product certification: most environmental certification reports and safety reports for raw materials, such as SGS report, CTI report, UL report, MSDS safety information, etc.
Pp Plastic Rod,Polypropylene Plastic Rod,Extruded Polypropylene Plastic Rod,Pp Plastic Welding Rods Dongguan Noegem Plastic Products Co.,Ltd , https://www.noegempLastic.com
Safety operation procedures for tailings conveying slurry pumping workers in mineral processing plant
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