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Method for dissolving sodium silicate by virtue of static pressure kettle

A static autoclave and sodium silicate technology, applied in the field of melting solid sodium silicate in a static autoclave, can solve the problems of increasing steam usage and energy waste, and achieve the effect of avoiding heat energy waste and reducing the use of external steam

Inactive Publication Date: 2014-03-19
青岛东岳泡花碱有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This greatly increases the use of steam, resulting in a waste of energy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0026] The method that this example utilizes static autoclave to melt solid sodium hydroxide comprises the following steps:

[0027] ①Close the discharge valve of the static autoclave;

[0028] ② Open the static autoclave vent valve;

[0029] ③Open the feeding port of the static autoclave;

[0030] ④ Add the hot solid sodium hydroxide produced by the horseshoe flame kiln into the static autoclave, cover the feeding port of the static autoclave tightly, and add water to the static autoclave with a high-pressure pump;

[0031] ⑤Close the static autoclave emptying valve;

[0032] ⑥Introduce steam into the static autoclave;

[0033] ⑦ After the pressure in the static autoclave reaches the first specified steam pressure, cut off the steam source;

[0034] ⑧ After the liquid sodium in the static autoclave reaches the specified concentration, open the discharge valve of the static autoclave to discharge; when the pressure in the static autoclave drops to the second specified s...

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Abstract

The invention provides a method for dissolving sodium silicate by virtue of a static pressure kettle. The method comprises the following steps: switching off a discharging valve of the static pressure kettle; switching on an emptying valve of the static pressure kettle; opening a charging hole of the static pressure kettle; adding hot soil sodium silicate produced through a horse shoe flame kiln into the static pressure kettle, tightly covering the charging hole of the static pressure kettle, and adding water into the static pressure kettle by utilizing a high-pressure pump; switching off the emptying valve of the static pressure kettle; introducing steam into the static pressure kettle; cutting off an air source after the pressure in the static pressure kettle reaches a first specified vapor pressure; switching on the discharging valve of the static pressure kettle to discharge materials after the concentration of liquid sodium silicate in the static pressure kettle reaches a specified concentration; switching on the emptying valve of the static pressure kettle, carrying out empty after the pressure in the static pressure kettle is decreased to a second specified vapor pressure. By improving a liquid sodium silicate production process by adopting the technical scheme provided by the invention, an energy-saving and environmental-friendly process for dissolving the solid sodium silicate is provided.

Description

technical field [0001] The invention relates to a process for producing natron, in particular to a method for dissolving solid natron in a static autoclave. Background technique [0002] Sodium silicate, also known as sodium silicate (Na2SiO3) and water glass, has a wide range of uses and almost covers all sectors of the national economy. [0003] The existing natron production process can be divided into dry method and wet method, and the dry method is usually used. The raw materials for the production of sodium silicate are quartz sand and soda ash. The two are mixed in a certain proportion and sent to a reverberatory furnace or a horseshoe flame furnace. , Dissolved into liquid under pressure, which is the liquid papaya alkali. [0004] The temperature of the solid sodium silicate produced by the horseshoe flame kiln is above 1000 degrees Celsius. In the existing production process, the high-temperature solid sodium silicate produced from the horseshoe flame furnace ki...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F1/00C01B33/32
CPCY02P20/10
Inventor 王云枫仲崇仪赵鲲
Owner 青岛东岳泡花碱有限公司
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