Energy-saving scale inhibiting and removing anticorrosion compound medicament for steam boiler and preparation method of medicament

Abstract

The invention discloses an energy-saving scale inhibiting and removing anticorrosion compound medicament for a steam boiler and a preparation method of the medicament. The preparation method comprises the following steps of preparing an organic component: weighing the following components in parts by weight: 15-35 parts of lignin, 5-20 parts of sodium alga acid, 0.5-2.5 parts of sodium humate, 1.5-3.5 parts of sodium tannin, 1.5-3.5 parts of modified starch, and 2.5-5.5 parts of glycol derivative, so as to obtain the organic component; preparing an inorganic component: weighing the following components in parts by weight: 2.5-5.5 parts of sodium hydroxide, and 5-17 parts of trisodium phosphate, so as to obtain the inorganic component; mixing the organic component with the inorganic component so as to obtain the compound medicament for the steam boiler. According to the medicament, the blowdown rate of the boiler can be lowered, water scale can be effectively prevented from generating, the old scale in the system can be dissolved and converted into sludge to be removed through pollution discharge, the sludge is in flow condition, so as not to block a meter and a valve, any on-going corrosion in the system can be inhibited, 100% pure neutral steam can be guaranteed to be produced, and priming of the steam boiler is prevented.

Description

technical field [0001] The invention relates to the technical field of chemical additives, in particular to an energy-saving, anti-scaling, anti-scaling, and anti-corrosion composite agent for steam boilers and a preparation method thereof. Background technique [0002] At present, our country has made great progress in the production and manufacturing technology of industrial boilers. However, the boiler auxiliary control device is still relatively backward, and the control level is low, especially in the aspect of boiler blowdown rate control. So far, most industrial steam boilers in China still adopt the backward phosphate dosing control method. The control is unstable and lags behind when the boiler is running, or it will cause huge energy waste due to excessive sewage discharge, increase the fuel consumption of the boiler, and increase the boiler The operating cost of the boiler will either cause fouling and corrosion in the fluid system of the boiler, or the water qual...

AI Technical Summary

Problems solved by technology

[0002] At present, our country has made great progress in the production and manufacturing technology of industrial boilers. However, the boiler auxiliary control device is still relatively backward, and the control level is low, especially in the aspect of boiler blowdown rate control. So far, most industrial steam boilers in China still adopt the backward phosphate dosing control method. The control is unstable and lags behind when the boiler is running, or it will cause huge energy waste due to excessive sewage discharge, increase the fuel consumption of the boiler, and increase the boiler The operating cost of the boiler will either cause fouling and corrosion in the fluid system of the boiler, or the water quality standard in the boiler cannot be guaranteed due to insufficient sewage discharge. Water level shutdown, which will seriously affect the safety and stability of boiler steam supply

When the water quality in the boiler seriously deteriorates, the phenomenon of steam carrying water will occur, that is, the expansion of boiler water with high concentration of salt will be carried into the steam system by a large amount of steam, which will cause fouling and leakage of steam traps in the downstream steam pipe network, resulting in failure of steam valves Erosion control failure and leakage, scaling and corrosion of steam-consuming equipment, and even water hammer damage to steam-consuming equipment, not only the boiler cannot operate normally, but also poses a serious threat to the normal operation of the downstream steam pipe network and steam-consuming equipment