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Application characteristics of LS type screw conveyor with auger for pulverized coal conveying of boiler in power plant

  • Publisher: Yan Wenhua

    Date of issue: September 11, 2020
  • Coal powder conveying auger for power plant boiler LS Application characteristics of type-A screw conveyor

      LS Type a screw conveyor It has been widely used in various sectors and industries of the national economy, such as building materials, metallurgy, chemical industry, electric power, coal, machinery, light industry, grain and food industry; it is suitable for conveying powder, granular and small materials, such as cement, coal powder, grain, fertilizer, ash, sand, coke, etc.; it is not suitable to transport materials that are easy to deteriorate, sticky and caking.

    Structure:

    Driving device : It is composed of motor and reducer. Suitable for motor drive 380V three Phase 50Hz Its protection level is IP55 (outdoor type), insulation class is F Level. Gear reducer composition, high torque, low noise, no oil leakage.

    Intermediate bearing : The middle bearing of screw conveyor is divided into head bearing and middle bearing.

    Head bearing: thrust bearing: it bears the axial force caused by the resistance of conveying materials and is placed in front of the materials.

    Intermediate bearing: split sliding bearing, used to support the screw shaft.

    Shaft connection: solid shaft is still used at the joint of shaft and shaft.

    Screw shaft : The screw shaft adopts hollow design and is made of steel pipe, with high strength, light weight and easy connection. Use a small section of solid shaft at the shaft to shaft connection and bearing mounting. At the joint, the solid shaft is extended into the hollow shaft, and the bolt is used to fix the connecting screw shaft through the hollow shaft and the solid shaft in the mutual vertical direction.

    Spiral blade : The spiral blade is made of stainless steel and cast by special mould, so it has enough strength and rigidity. The surface of the blade is smooth and smooth, and the rotating speed is suitable, so it is not easy to deform. The blades of screw conveyor can be divided into full blade type, belt type, paddle type, tooth type and so on. Carbon steel, stainless steel and manganese steel can be selected according to the materials. For viscous and winding materials of the conveyor, shaftless spiral blades can be used.

    Coal powder conveying auger for power plant boiler LS Application characteristics of type-A screw conveyor

    Screw machine body : It is mainly composed of the head and tail segments. A thrust bearing is installed in the head section to bear the axial force, and a useful bearing is installed in the middle section and tail section to support the screw shaft.

    When the screw shaft rotates, due to the gravity of the material and the friction force generated by the wall of the tank, the material can only move forward along the bottom of the conveyor under the push of the blade, which is similar to the translational movement of the nut that cannot be rotated along the rotating screw.

    characteristic

    LS Screw conveyor Grade adoption ISO1050 Standard design and manufacture meet the standard. The structure is novel. The head and tail bearings are moved to the outside of the shell. The middle suspension bearing adopts rolling and sliding structure, which can be interchanged. Dust proof sealing device is set. The position of inlet and outlet is flexible. The whole machine has low noise, strong adaptability and convenient operation and maintenance. The sealing parts of the machine are nylon and poly (ethylene terephthalate) resin, which have the characteristics of low resistance, good sealing and wear resistance. The sliding bearing materials include cast copper bush, alloy wear-resistant cast iron, copper based graphite less oil lubricating Bush and so on.

    ls200 The structure principle and application of type-1 screw conveyor have the functions of material level control, automatic feeding or overload. Screw diameter from two hundred Mm to five hundred Mm, a total of five specifications, length from four Rice to seventy Meters, every zero point five It can be selected according to the standard nominal length. Special requirements can be put forward separately in the selection section. According to the screw drive mode, it can be divided into two types: C1 Manufacturing method - screw length less than 35m Single ended. C2 Manufacturing method - screw machine greater than 35m Two end drive. According to the type of intermediate crane bearing of screw machine, it can be divided into: M1 - it is a rolling crane bearing eighty thousand It is usually used in places where it is not easy to add oil, do not add oil or the oil pollutes the materials. It has good sealing effect, long service life of the hanging bearing, and the temperature of conveying materials is less than eighty C (not indicated when ordering). M2 - it is a sliding crane bearing, equipped with dust-proof sealing device, which is usually used for conveying materials with high temperature (> 0 eighty Or liquid materials.

    Coal powder conveying auger for power plant boiler LS Application characteristics of type-A screw conveyor

    LS Type a screw conveyor Equivalent adoption ISO1050-75 Standard, design and manufacture meet the standard. LS Screw conveyor is the substitute GX The screw diameter of the new type screw conveyor is from 100mm to 1250mm There are 12 kinds of specifications, which are only introduced here 100mm to 630mm Several specifications. LS There are two types of single screw drive. The length of single drive screw machine is up to 40m (extra large 30m )The double drive screw conveyor adopts the structure of middle broken shaft, and the length can reach up to 80m (extra large 60m )。 Screw length per 0.5m First gear , It can be selected as needed. The hanging bearing adopts oil cup outside the machine, which is convenient for centralized oiling and lubrication. The layout of the inlet and outlet is flexible, and the electric outlet is added for automatic control. It has the characteristics of novel structure, technical index, strong adaptability, convenient operation and maintenance.

    Hebei Shouyang environmental protection equipment Co., Ltd. has been committed to the research, development, installation and production of environmental protection dust removal, waste gas, desulfurization and denitrification engineering equipment for many years Boiler dust collector At the same time, our company produces dust removal accessories, such as bag filter, dust collector, cyclone, wet electrostatic precipitator, electrostatic precipitator and waste gas deodorizer. At the same time, our company produces dust removal accessories such as bag filter, dust collector framework, pulse solenoid valve, pulse controller, unloader, gate valve, conveyor, elevator, etc, It has been highly praised by industry insiders and customers,


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