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A kind of processing method of chlorine dioxide generator reactor

A chlorine dioxide and processing method technology, applied in the directions of chlorine dioxide, chlorine oxide, adhesive additives, etc., can solve the problems of plastic changes of connecting pipes, easy cracking at welds, weak connections, etc., and achieve increased service life, The effect of improving production efficiency and reducing the difficulty of operation

Active Publication Date: 2020-06-02
SICHUAN QILI LVYUAN WATER TREATMENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: after the chlorine dioxide generator reactor and the pipe are welded, the weld seam is easy to crack, the connection is not firm, and the plasticity of the connecting pipe changes after welding, and it is easy to break. The present invention provides A kind of processing method of chlorine dioxide generator reactor that solves the above problems

Method used

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  • A kind of processing method of chlorine dioxide generator reactor
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Embodiment 1

[0038] The present embodiment provides a kind of processing method of chlorine dioxide generator reactor, comprises the following steps:

[0039] Step A, the workpiece surface is polished successively, and acetone is used for cleaning operation and chemical reagent surface treatment; chemical reagent treatment adopts chromic acid method: potassium dichromate (g): water (ml): concentrated sulfuric acid (ml)=1: 2:20;

[0040] Step B, coating the adhesive on the surface of the workpiece after pretreatment, the thickness of the adhesive coating on the surface of the workpiece is 3-5mm;

[0041] Step C: butt the surfaces of the two workpieces that need to be bonded, and carry out bonding and curing through pressurization and heating operations; apply pressure to generate a 0.2MPa opposite vertical pressure between the surfaces of the two workpieces; the heating process is: at 5°C / Raise the temperature to 40°C and stay at 40°C for 10 minutes; then raise the temperature to 50°C at ...

Embodiment 2

[0052] The present embodiment provides a kind of processing method of chlorine dioxide generator reactor, comprises the following steps:

[0053] Step A, the workpiece surface is polished successively, and acetone is used for cleaning operation and chemical reagent surface treatment; chemical reagent treatment adopts chromic acid method: potassium dichromate (g): water (ml): concentrated sulfuric acid (ml)=1: 2:20;

[0054]Step B, coating the adhesive on the surface of the workpiece after pretreatment, the thickness of the adhesive coating on the surface of the workpiece is 3-5mm;

[0055] Step C: butt the surfaces of the two workpieces that need to be bonded, and carry out bonding and curing through pressurization and heating operations; apply pressure to generate a vertical pressure of 0.2-0.5 MPa between the surfaces of the two workpieces; the heating process is: 5 ℃ / min to 40°C, stay at 40°C for 10 minutes; then raise the temperature to 50°C at 2°C / min, stay for 10 minute...

Embodiment 3

[0066] The present embodiment provides a kind of processing method of chlorine dioxide generator reactor, comprises the following steps:

[0067] Step A, the workpiece surface is polished successively, and acetone is used for cleaning operation and chemical reagent surface treatment; chemical reagent treatment adopts chromic acid method: potassium dichromate (g): water (ml): concentrated sulfuric acid (ml)=1: 2:20;

[0068] Step B, coating the adhesive on the surface of the workpiece after pretreatment, the thickness of the adhesive coating on the surface of the workpiece is 3-5 mm;

[0069] Step C: butt the surfaces of the two workpieces that need to be bonded, and carry out bonding and curing through pressurization and heating operations; apply pressure to generate a vertical pressure of 0.2-0.5 MPa between the surfaces of the two workpieces; the heating process is: 5 ℃ / min to 40°C, stay at 40°C for 10 minutes; then raise the temperature to 50°C at 2°C / min, stay for 10 minu...

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Abstract

The invention discloses a chlorine dioxide generator reactor processing method which includes the steps: A sequentially grinding, cleaning and treating the surfaces of workpieces with chemical reagents; B coating the pretreated surfaces of the workpieces with adhesives; C performing butt joint on the surfaces of the two workpieces needing adhesion, and performing adhesion curing by pressing and heating operation. The adhesives comprise asbestos powder, calcium sulfate, bauxite, EDTA (ethylene diamine tetraacetic acid), urea resin, dibutyl phthalate, tributyl citrate, polyvinyl alcohol, ABS (acrylonitrile butadiene styrene) resin, rosin and water glass. A connecting method of a reactor and a pipe is changed into adhesion connection, operation difficulty coefficient is reduced, and weld strength shortage, weld failure, weld stress induced weld brittle failure and the like caused by welding material selection and improper welding methods are effectively prevented.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a processing method of a chlorine dioxide generator reactor. Background technique [0002] The reactor of the chlorine dioxide generator is mainly composed of composite materials, PVC and CPVC pipes and fittings, and the connection method of the two is mainly welding. The connection method of early reactors was mainly hot-melt butt jointing, and its main process was adjustment, heating, switching, seam pressurization and cooling. The method is to heat the two identical connection interfaces to a viscous fluid state, then apply a certain pressure to the connection interface, and cool and solidify under this pressure state to form a firm connection. The material in the viscous fluid state on the interface has flow and diffusion during the butt joint, too much flow is not conducive to diffusion and entanglement, so the flow should be limited to a certain range, and "post-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B11/02C09J161/24C09J129/04C09J155/02C09J193/04C09J11/04
CPCC01B11/022C08K2003/3045C08L2205/035C09J11/04C09J161/24C08L29/04C08L55/02C08L93/04C08K13/04C08K7/12C08K3/30C08K3/34
Inventor 向德明穆超银
Owner SICHUAN QILI LVYUAN WATER TREATMENT TECH CO LTD
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