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A kind of enamel equipment repair process

A process and equipment technology, applied in the field of organic silicon production equipment, can solve the problems that PP boards cannot be bent and formed, PP boards are easy to age, and maintenance costs are high, achieving wide repair range, good corrosion resistance and erosion resistance, The effect of short recovery time

Active Publication Date: 2019-04-23
HUBEI XINGRUI SILICON MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Method 1 has a high maintenance cost and a long cycle; method 2 is prone to layer peeling due to the difference in thermal expansion coefficient between the enamel coating and the receptor; method 3 and method 4 can only be used for repairing defects with small areas; method 5 PP board is easy to age And the PP board cannot be bent and formed, so it cannot be used for repairing the curved arc surface.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Hubei Xingrui Chemical Co., Ltd. organosilicon branch factory finished product workshop acid separator C top DN800 flange mouth r surface enamel peeling off 150cm 2 And perforate 4cm 2 , The function of the equipment is to separate the hydrolyzate and hydrochloric acid of dimethyl dichlorosilane hydrolysis.

[0025] When repairing the enamel equipment, the specific operation steps are:

[0026] 1) After grinding the dirt on the defect, clean it, and fill the defect position by cold welding;

[0027] 2) Weld the bolts at the defect so that they are evenly distributed on the defect, and the distance between two adjacent bolts is ≤50mm; the contact edge between the undamaged and the defect is polished with a 15-25mm wide rough surface as the transition surface;

[0028] 3) Cut the PTFE mesh, PTFE plate and tin plate according to the grinding area, and reserve corresponding bolt holes; paint fabric repair agent on each surface of the tin plate, and wait for it to solidify...

Embodiment 2

[0032] Hubei Xingrui Chemical Co., Ltd. organosilicon branch factory finished product workshop acid separator B manhole flange mouth r surface enamel peeling off 50cm 2 And perforate 1cm 2 , The function of the equipment is to separate the hydrolyzate and hydrochloric acid of dimethyl dichlorosilane hydrolysis.

[0033] When repairing the enamel equipment, the specific operation steps are:

[0034] 1) After grinding the dirt on the defect, clean it, and fill the defect position by cold welding;

[0035] 2) Weld the bolts at the defect so that they are evenly distributed on the defect, and the distance between two adjacent bolts is ≤50mm; the contact edge between the undamaged and the defect is polished with a 15-25mm wide rough surface as the transition surface;

[0036] 3) Cut the PTFE mesh, PTFE plate and tin plate according to the grinding area. The thickness of the PTFE plate is 2mm, the thickness of the tin plate is 3mm, and the corresponding bolt holes are reserved; B...

Embodiment 3

[0041] Hubei Xingrui Chemical Co., Ltd. organosilicon branch factory finished product workshop hydrogen chloride buffer tank B manhole flange mouth enamel falling off 35cm 2 , the role of the equipment is to store and circulate hydrogen chloride.

[0042] When repairing the enamel equipment, the specific operation steps are:

[0043] 1) After grinding the dirt on the defect, clean it, and fill the defect position by cold welding;

[0044] 2) Weld the bolts at the defect so that they are evenly distributed on the defect, and the distance between two adjacent bolts is ≤50mm; the contact edge between the undamaged and the defect is polished with a 15-25mm wide rough surface as the transition surface;

[0045] 3) Cut the PTFE mesh, PTFE plate and tin plate according to the grinding area. The thickness of the PTFE plate is 2mm, the thickness of the tin plate is 3mm, and the corresponding bolt holes are reserved; Brush the fabric repair agent on each surface of the board, and wait...

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PUM

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Abstract

The invention discloses a repairing process for enamel equipment. The repairing process has the advantages that bolts and a multilayer repairing plate are mounted at a defect positon, enamel repairing agents are applied through brushing to serve as the bottom material and the surface material, a four-layer repairing structure including the bottom material, a teflon layer, the SN repairing plate and the surface material is formed, a wide repairing range is achieved, and the repairing process is applicable to any positions inside the enamel equipment and especially applicable to the repairing of the damaged and falling defect of an enamel layer or equipment corrosion perforation caused by the fact that the falling off of enamel is not discovered timely; high repairing bonding strength and good corrosion resistance and erosion resistance are achieved, and the repaired equipment can stably operate for more than 6 months.

Description

technical field [0001] The invention relates to the technical field of organosilicon production equipment, in particular to an enamel equipment repair process. Background technique [0002] Steel-lined enamel is often used in containers used for corrosive medium reaction and corrosive medium storage in organosilicon production or other chemical production. The enamel lining of such container equipment is prone to pores during sintering or the enamel part is easy to fall off during installation and use. If the falling off position is on the sealing surface of the equipment flange, simple welding and enamel repair agent can be applied. If the perforation position is within the arc r surface of the flange neck, simple enamel repair usually cannot reach the strength required for use. , or repeated failures after a short period of use. Existing enamel repair techniques include the following: 1. Re-sintering after all enamel is removed, 2. Direct brushing of enamel repair agent, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/02B23P6/00
CPCB01J19/02B01J2219/0259B23P6/00
Inventor 聂亮王宏飞孙科兴何帆王文金
Owner HUBEI XINGRUI SILICON MATERIAL CO LTD