Preparation methods for water treatment reagents

1. Preparation of water purification drugs

Boiler waterproof scaling agent, based on water quality, kiln type, steam (hot water) distribution, and boiler operating parameters, selects the type of formulation as waterproof scaling agent, and then calculates the usage amount according to the amount of water used, and then prepares powder, liquid, or solid waterproof scaling agents.Water Purifier

(1) Preparation of Powder Anti scaling Agent

Before preparing solid sodium hydroxide, steam can be dissolved in a solution with a concentration of about 40%. When preparing, it is possible to accurately weigh the specified amount of alkali, sodium phosphate, sodium humate (or glue), etc. D. Break the clot pill, mix and stir in a blender. During the stirring process, slowly add the specified amount of sodium hydroxide solution and diluted water stabilizer until the powder is evenly mixed.

Powder preservatives are easy to prepare, soluble in water, and more convenient to transport and use. Do not use too much liquid medicine (such as sodium hydroxide solution) during the cooking process. When feeding, a certain measuring instrument is required to determine its quantity.Water Purifier

(2) Preparation of Liquid Anti scaling Agent

Before preparation, assemble the selected drugs into a liquid of a certain concentration, then mix them in proportion according to the calculated amount of different formulations to obtain a certain amount, and finally stir evenly. It should be noted that sodium triphosphate is easily released as a solid in a mixture and can be slightly diluted or manufactured separately; When using sodium hexamethylphosphate, it can react with sodium hydroxide to form sodium phosphate, so do not mix it; When dissolving glue, if heating is required, do not exceed 80 ° C to avoid decomposition and deterioration.

The liquid dosage form can adapt to the preparation of different proportions of liquid anti scaling agents, and its collection is very simple, quickly dissolved, uniform, and easy to quantitatively inject. The disadvantage is that it is unsafe and uncomfortable to wear, and may freeze outdoors in winter.

(3) Preparation of Solid Anti scaling Agent

Before preparation, sodium carbonate powder, trisodium phosphate, and sodium humate (or rubber) are used. D. Weigh according to the usage ratio, stir evenly, slowly add a given amount of sodium hydroxide solution and diluted water stabilizer during the stirring process, and add cold water appropriately to achieve the molding consistency. Stir completely and evenly, pour into the mold (wooden or iron frame), align and compact, then align the line as needed, after slight solidification, remove along the line, dry on the air frame, and dry on the scrotum.

In addition, powdered anti scaling agents can also inhibit the formation of solid anti scaling agents, such as block shaped, spherical, etc.

Solid waterproof scale, easy to carry and use, accurate injection volume. The disadvantage is slow dissolution and limited amount of liquid additives during preparation, such as sodium hydroxide, which should not exceed 20% of the total alkali content.