Grate cooler and installation process thereof

Abstract

The invention provides a grate cooler and an installation process thereof, and belongs to the field of cement production special equipment. The two ends of a driving shaft (3) are each fixedly provided a middle block (21), the two sides of each middle block (21) are each provided with a frame base (25), two wedge blocks (22) are arranged between the corresponding frame bases (25) and each middle block (21), and every two wedge blocks (22) are reversely arranged. The wedge blocks (22) are used for avoiding the shaking gap generated between the frame bases (25) and a middle base, two thrusting baffle working surfaces of each frame base (25) can be machined individually, the middle blocks (21), a guide rail seat (19) and the driving shaft (3) can be machined individually, so that the machining difficulty and the machining cost are reduced; and during accident maintenance, end part tensioning sleeves (26) and the wedge blocks (22) are adjusted to compensate the temperature distortion of abearing component of the equipment, so that the good mechanical state of the bearing component of the equipment is maintained.

Description

technical field [0001] The grate cooler and its installation process belong to the field of special equipment for cement production. Background technique [0002] The grate cooler is an important host equipment in the clinker burning system of a cement plant. Its main function is to cool and transport the cement clinker, and at the same time provide hot air for the rotary kiln and calciner. It is also the heat recovery system of the clinker burning system. main equipment. [0003] The grate plate and grate bed structure of the push type grate cooler are the most important parts of the grate cooler. Such as figure 1 , figure 2 As shown, the grate plates on the grate bed 1 are composed of row by row fixed grate plates 13 and movable grate plates 14 arranged alternately. The fixed grate plate 13 is supported by the fixed beam 12 and connected with the fixed frame of the casing, and the fixed grate plate 13 is motionless relative to the grate cooler housing. The movable gr...

AI Technical Summary

Problems solved by technology

[0005] Due to the reciprocating motion of the movable grate plate 14 and the movable frame 5, the connection part 7 of the drive shaft 3 and the movable frame 5 needs to bear the alternating force of positive and negative directions, and the stressed bolts of the connected part 7 are easy to loosen, and the stressed members are prone to cracks

like figure 2 As shown, usually the connection form of drive shaft 3 and movable frame 5 adopts two contact surfaces, horizontal and vertical, and is connected with bolt 43. The contact surfaces of connecting seats 42 on the two longitudinal beams must be on the same plane respectively, and they must be on the same plane as the drive shaft. 3. The two contact surfaces of the two connecting blocks 41 welded together are respectively on the same plane, and the two contact planes of each connecting part (the middle block 21 and the frame base 25) must be vertical, otherwise, the gaps between the contact surfaces of the connecting parts will be inconsistent Inconsistent stress on the connecting bolts 23 will cause the bolts to loosen or break

During the long-term use of the grate cooler, due to unexpected production accidents, the movable frame 5, the movable longitudinal beam 6 and the support system 9 inside the casing will be deformed to varying degrees due to heat, and the components at the connection between the drive shaft 3 and the movable frame 5 Deformation leads to faults, and the original assembly accuracy cannot be restored in the process of troubleshooting, resulting in more faults and more repairs, and the equipment is getting worse and worse. In the end, the drive shaft 3 and the movable frame 5 can only be replaced.

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