Suggestions on the manufacture of glass lined reactor

1、 Surface shape of inner and outer heads of kettle body

Whether the lead filled structure or the expansion type structure is used, in order to ensure that the shape of the inner and outer head surface of the kettle body can match the shape of the other head surface, it is necessary to re overlap and punch the two formed heads, use the outer head as the mold, and assemble the inner head, so as to effectively avoid large gaps after the assembly of the two, and reduce the defects of welding residual stress after assembly and welding.

2、 Ensure even clearance

Relevant personnel shall control the gap between the lining layer and the base layer in strict accordance with the requirements of the drawing. The gap between the expansion and pasting is 8mm, and the gap between the lead filling is 7mm. By strengthening the reasonable control of the gap between the lining layer and the base layer during assembly, the uniformity of the gap can be ensured, and the forming quality of the reaction kettle can be effectively improved.

3、 Pre assembly of inner and outer kettle bodies

During the pre assembly of inner and outer kettles, in order to ensure the size of the finish machined end face of the upper head, it should be noted that: the upper and lower heads must be set at specific positions to control the clearance at various places; At the same time, marks shall be made to ensure the consistency between the formal assembly position and the pre assembly position.

4、 Set stop point

The clearance of all parts after assembly shall be strictly controlled to ensure that the clearance between the upper and lower heads is 5-8mm. Do not force assembly.

5、 Bulging forming treatment

In the processing of the expanded and bonded structure, the relevant operations shall also be carried out in strict accordance with the requirements of the drawings, and great attention shall be paid to the expansion and bonded gap reservation during the assembly process. At the same time, it shall be ensured that the top of the lining and the reactor base are closely and smoothly transited, effectively avoiding the fracture of the welding point between the lining and the flange lining ring after the expansion and bonded forming.