Dissolving device for production of liquid sodium silicate

Abstract

The invention relates to a dissolving device for production of liquid sodium silicate. The dissolving device is used for static dissolving and comprises a barrel body, and the axis of the barrel bodyhorizontally extends; the dissolving device is essentially a horizontal-type dissolving kettle, the horizontal-type dissolving kettle is low in cost and small in occupied space, and can be mounted ina workshop, and a liquid sodium silicate filter platform can be built above the dissolving kettle, so that the space advantage is fully utilized; the distance between charging openings of the horizontal-type dissolving kettle and the ground is only about 3 meters, thus the conveying distance of solid sodium silicate blocks is decreased, and the charging time is shortened; a grate of the horizontal-type dissolving kettle is large in area and can bear a large amount of sodium solid silicate, and thus the production efficiency is improved; and according to the horizontal-type reaction kettle, thevolume of the reaction kettle is increased, the single-kettle yield is increased, as for an existing sodium silicate vertical-type static reaction kettle, the maximum volume is 25 m3, the maximum capacity of the single-kettle liquid sodium silicate is 18 tons, as for the horizontal-type reaction kettle, the volume is 56.6 m3, and the yield of the single-kettle liquid sodium silicate is 42 tons.

Description

technical field [0001] The invention relates to the field of reaction kettles, in particular to a chemical material device used for the production of liquid sodium silicate. Background technique [0002] Sodium silicate, commonly known as sodium silicate, is a water-soluble silicate, which has the advantages of strong cohesive force, high strength, good acid resistance and heat resistance, and is widely used in analytical reagents, fireproofing agents and adhesives , liquid sodium silicate is the main raw material for the production of sodium metasilicate, instant powdered sodium silicate, white carbon black, etc. At present, block solid sodium silicate is used as raw material, adding appropriate amount of water into the chemical tank, passing steam at a certain temperature and pressure, and through reasonable operation, it can be melted into the required liquid sodium silicate. [0003] The main production method of solid sodium silicate is to use soda ash and quartz sand ...

AI Technical Summary

Problems solved by technology

The current domestic liquid sodium silicate compounding device generally adopts a vertical chemical compounding kettle, which has disadvantages such as low production efficiency, low output, difficult operation, high energy consumption, and high maintenance cost, as follows:

[0004] 1. The construction and use costs of vertical chemical tanks are high

The vertical chemical material tank needs to be built with a corresponding height steel structure escalator outside; if the vertical chemical material tank is built outdoors, the heat dissipation of the tank body is fast, which increases the insulation cost and energy consumption of the tank body, and if it is built in an indoor factory building, the height will be increased accordingly. Increased supporting construction costs

[0005] 2. Low production efficiency: the vertical chemical kettle has only one solid sodium silicate feeding port on the upper part, and the height of the feeding port on the top of the kettle is about 5 meters. It is necessary to transport the solid sodium silicate block to the kettle with equipment such as bucket lifts or belts. top, and then added to the vertical chemical tank, greatly increasing the feeding time

The bottom area of ​​the vertical chemical tank is small, only one discharge pipe can be installed, and the discharge speed is slow

[0006] 3. The operator of the vertical chemical kettle is at high risk: after feeding, the operator needs to go up to the top of the 5-meter-high kettle along the spiral staircase outside the vertical chemical kettle, and install it on the small working surface on the top of the vertical chemical kettle. Filling port sealing cap

[0007] 4. High steam consumption: There are few steam pipes inside the vertical chemical tank, and the amount of steam introduced per unit time is small. In order to completely dissolve the solid sodium silicate, multiple steam pressure and pressure relief operations are required, which increases the material time and steam consumption

[0008] 5. High maintenance cost: There is a discharge port under the grate at the bottom of the vertical chemical tank, and the grate can block undissolved solid sodium silicate when discharging

The grate in the vertical chemical tank is easy to collapse, which leads to the blockage of the discharge port, and the serious problem that the liquid product has a layer and cannot be discharged, resulting in a decline in product quality and equipment failure.

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