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Cement curing process and system thereof

A cement solidification and process technology, applied in nuclear engineering, radioactive purification and other directions, can solve the problems of low effective utilization rate of container volume and large amount of solid waste, and achieve the effects of low cost, stable hydration reaction and small capacity increase ratio.

Pending Publication Date: 2019-08-30
LINGDONG NUCLEAR POWER +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the cement cement curing process of nuclear power plants: For waste resin and concentrated waste liquid, separate formulas and processes are used to achieve solidification. Large amount of solid waste generated during the process

Method used

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  • Cement curing process and system thereof
  • Cement curing process and system thereof
  • Cement curing process and system thereof

Examples

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Embodiment 1

[0030] A kind of cement solidification process, adopts cement solidification system 10 to finish, as figure 2 As shown, the cement curing system 10 includes a metal bucket 11, a wet material filling cover 12, a dry material filling cover 13, a stirring device 14 and a fixed steel platform 15, and a transport roller for transporting the metal bucket is arranged below the fixed steel platform 15 Road 16, the wet material filling cover 12 is used to inject waste resin and concentrated waste liquid into the metal barrel 11, the waste resin is stored by the waste resin tank 17 metering meter, and is added to the metal barrel 11 through the wet material filling cover 12, The dry material filling cover 13 is used to inject cement, additives and lime into the metal bucket 11, and the cement curing system 10 also includes an unsealing cover device 18, which is used for opening and closing the metal bucket lid. The specific cement curing process steps are as follows:

[0031] (1) The ...

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PUM

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Abstract

The invention provides a cement curing process which comprises the following steps: (1) mixing cement with an additive so as to obtain a mixed dry material; (2) mixing a waste resin with a concentrated waste liquid, conducting stirring, and adding lime while stirring; (3) putting a certain amount of water into the mixed material treated in the step (2), conducting stirring, and adding the mixed dry material while stirring; and (4) conducting maintenance, wherein the content of the waste resin is 280-310 parts by weight, the content the concentrated waste liquid is 50-90 parts by weight, the content of the lime is 60-120 parts by weight, the content of the cement is 770-830 parts by weight, the content of the additive is 3-6 parts by weight, and the content of the water is 150-180 parts byweight. The cement curing process provided by the invention is low in cost, simple in curing mode and small in enlargement ratio, and has high economic benefits and social benefits. The invention furthermore provides a cement curing process system.

Description

technical field [0001] The invention belongs to the field of medium and low radioactive waste treatment, and in particular relates to a cement solidification process and system for medium and low radioactive waste. Background technique [0002] Cement solidification is a waste solidification treatment method, and it is also a method of harmless and stable treatment of hazardous waste. Cement is a kind of inorganic cementing material, which produces a hydration reaction when added with water, and forms a hard cement block after the reaction. In the field of nuclear industry, the operation of nuclear facilities will produce corresponding radioactive waste. Taking nuclear power plants as an example, liquid and solid radioactive waste will be generated during its operation, such as radioactive concentrate, radioactive waste resin, and so on. Because these wastes are radioactive, they need to be immobilized to meet relevant requirements. [0003] In nuclear power plants, nucle...

Claims

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Application Information

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IPC IPC(8): G21F9/16G21F9/30G21F9/00
CPCG21F9/008G21F9/304G21F9/165
Inventor 邹利平周东升刘夏杰郑伟赵宇陈俊杰赵滢张志刚张惠炜何小平
Owner LINGDONG NUCLEAR POWER
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