Deoiling powder special for metal zirconium tube production in nuclear industry field

Abstract

The invention discloses special oil removal powder for a metal zirconium tube production process in the field of nuclear industry, which comprises oil removal powder, the oil removal powder is prepared by uniformly mixing the following raw materials in parts by weight: 36-44 parts of sodium hydroxide, 14-18 parts of sodium carbonate, 11-14 parts of anhydrous sodium metasilicate, 9-11 parts of sodium dodecyl benzene sulfonate, 8-9 parts of sodium carboxymethyl cellulose, 7-8 parts of sodium alkenyl sulfonate and 4-6 parts of dodecyl phosphate. Particularly, the oil cleaning performance on oil stains on the inner wall of a slender zirconium pipe is good, the oil removal speed is high, the oil removal efficiency is several times that of an imported product, the cost is reduced to about 40% of the price of the imported oil removal product, the escaped smell is small, and the working environment atmosphere is more environment-friendly.

Description

Technical Field

[0001] The invention discloses a special degreasing powder for a metal zirconium tube process in the nuclear industry, belonging to the technical field of degreasing powder for metal zirconium tubes in the nuclear industry. Background Art

[0002] Zirconium tube products in the domestic nuclear industry need to be degreased during the manufacturing process. Due to the characteristics of zirconium tube products themselves and oil pollution, the current domestic degreasing powder products generally fail to achieve the expected results. Degreasing powder imported from abroad is used in production. In actual operation, there are problems such as long procurement cycle, high price, low production efficiency, and the risk of raw materials being restricted by foreign monopoly and the risk of enterprise suspension of production once the supply is cut off. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the problems in the prior art such as long degreasing powder procurement cycle, high price, low production efficiency, and the risk of enterprises shutting down due to foreign monopoly of raw materials and supply interruption, and to provide a special degreasing powder for metal zirconium pipe process in the nuclear industry, thereby solving the above problems.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a special degreasing powder for metal zirconium tube process in the nuclear industry, comprising the degreasing powder, wherein the degreasing powder is made by uniformly mixing the following raw materials in parts by weight: 36-44 parts of sodium hydroxide, 14-18 parts of sodium carbonate, 11-14 parts of anhydrous sodium metasilicate, 9-11 parts of sodium dodecylbenzene sulfonate, 8-9 parts of sodium carboxymethyl cellulose, 7-8 parts of sodium olefin sulfonate, and 4-6 parts of dodecyl phosphate.

[0005] Compared with the prior art, the present invention has the following beneficial effects: The degreasing powder of the present invention can remove oil thoroughly in practical application, especially has good oil removal performance for oil stains on the inner wall of slender zirconium tubes; The oil removal speed is fast, only 15-20 minutes, and the oil removal efficiency is more than 4 times that of imported products (which take 1 to several hours); The cost is reduced to about 40% of the price of imported degreasing products; The odor emitted is small, and the working environment is more environmentally friendly. Implementation

[0006] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0007] The invention discloses a special degreasing powder for metal zirconium tube process in the nuclear industry, comprising the degreasing powder, wherein the degreasing powder is prepared by uniformly mixing the following raw materials in parts by weight: 36-44 parts of sodium hydroxide, 14-18 parts of sodium carbonate, 11-14 parts of anhydrous sodium metasilicate, 9-11 parts of sodium dodecylbenzene sulfonate, 8-9 parts of sodium carboxymethyl cellulose, 7-8 parts of sodium olefin sulfonate and 4-6 parts of dodecyl phosphate.

[0008] When in use: prepare the degreasing powder into a degreasing working solution at a mass concentration of about 10%, stir to dissolve and heat to 60-70 degrees, then immerse the workpiece to be degreased in the solution for 15-20 minutes. Example

[0009] A special degreasing powder for metal zirconium pipe process in the nuclear industry, which is prepared by uniformly mixing 420 g / kg of sodium hydroxide, 160 g / kg of sodium carbonate, 110 g / kg of anhydrous sodium metasilicate, 110 g / kg of sodium dodecylbenzene sulfonate, 80 g / kg of sodium carboxymethyl cellulose, 80 g / kg of sodium olefin sulfonate, and 40 g / kg of dodecyl phosphate; The degreasing powder and water are mixed in a mass ratio of 1:12 to prepare a degreasing working solution and stirred to dissolve. The degreasing working solution is then heated to 70 degrees and the degreasing workpiece is immersed in the solution for 20 minutes. Example

[0010] A special degreasing powder for metal zirconium tube process in the nuclear industry, which is prepared by uniformly mixing 400 g / kg of sodium hydroxide, 160 g / kg of sodium carbonate, 130 g / kg of anhydrous sodium metasilicate, 100 g / kg of sodium dodecylbenzene sulfonate, 85 g / kg of sodium carboxymethyl cellulose, 75 g / kg of sodium olefin sulfonate, and 50 g / kg of dodecyl phosphate; The degreasing powder and water are mixed in a mass ratio of 1:10 to prepare a degreasing working solution and stirred to dissolve. The degreasing working solution is then heated to 65 degrees and the degreasing workpiece is immersed in the solution for 17 minutes. Example

[0011] A special degreasing powder for metal zirconium pipe process in the nuclear industry, which is prepared by uniformly mixing 415 g / kg of sodium hydroxide, 160 g / kg of sodium carbonate, 110 g / kg of anhydrous sodium metasilicate, 90 g / kg of sodium dodecylbenzene sulfonate, 90 g / kg of sodium carboxymethyl cellulose, 75 g / kg of sodium olefin sulfonate, and 60 g / kg of dodecyl phosphate; The degreasing powder and water are mixed in a mass ratio of 1:8 to prepare a degreasing working solution and stirred to dissolve. The degreasing working solution is then heated to 60 degrees and the degreasing workpiece can be immersed in the solution for 15 minutes.

[0012] Specifically, the degreasing powder removes oil thoroughly, especially for the oil stains on the inner wall of slender zirconium tubes, with good oil removal performance and fast degreasing speed. Its degreasing efficiency is several times that of imported products, and its cost is reduced to about 40% of the price of imported degreasing products. It emits little odor and the working environment is more environmentally friendly.

[0013] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A special degreasing powder for metal zirconium pipe process in the nuclear industry, characterized by: The invention comprises degreasing powder, which is prepared by uniformly mixing the following raw materials in parts by weight: 36-44 parts of sodium hydroxide, 14-18 parts of sodium carbonate, 11-14 parts of anhydrous sodium metasilicate, 9-11 parts of sodium dodecylbenzene sulfonate, 8-9 parts of sodium carboxymethyl cellulose, 7-8 parts of sodium olefin sulfonate and 4-6 parts of dodecyl phosphate.