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Process and device for continuously preparing powdery washing powder particles

A preparation device and washing powder technology, applied in the preparation of detergent mixture composition, detergent composition, detergent compounding agent, etc., can solve the problems of difficult to adapt to the market demand of washing powder, complicated and difficult process, low production efficiency, etc. problems, to achieve the effect of improving low-temperature solubility, high energy utilization rate, and low cost

Active Publication Date: 2014-05-07
ZANYU TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These preparation processes all need to remove a large amount of water in the surfactant or its particles, and the energy consumption is high; and the process is complicated and difficult, resulting in low production efficiency, difficult to increase production capacity, and difficult to adapt to the huge market demand for washing powder

Method used

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  • Process and device for continuously preparing powdery washing powder particles
  • Process and device for continuously preparing powdery washing powder particles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] 1. 1t / h washing powder particle production line

[0047] Sodium carbonate and 4A zeolite (weight ratio 2:5) enter the high-shear reactor at a flow rate of 700kg / h, and AEO ester at a flow rate of 300kg / h, and neutralize and granulate in it; the volume of the high-shear reactor is selected 10L reactor, the average residence time of the material is 10s, and the neutralization temperature is raised to 55°C; after that, the material is output and then enters the flash dryer, and the induced draft fan is turned on at the same time to rapidly cool down the material in the flash dryer and remove the moisture generated by neutralization; Adjust the wind pressure to control the particle size of AES particles;

[0048] The finally obtained washing powder particle indicators are as follows:

[0049] indicators

result

active matter, %

30.6

Bulk density, g / ml

0.66

Particle size D90, μm

380

low temperature solubility

qualifie...

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Abstract

The invention relates to a process and a device for continuously preparing powdery washing powder particles. The process provided by the invention is simple in adopted equipment and high in production efficiency. The provided preparation device is simple in structure. The technical scheme is as follows: the process comprises the following steps: (1) a powdery mixture of a neutralizing agent and a wrapping agent and organic-material acid ester enter a high-shearing reactor according to a certain proportion; (2) the formed washing powder particles are output and then enter a flashing dryer; (3) certain particle size is maintained for the obtained washing powder particles; (4) mixed gas flow from an outlet of the flashing dryer enters a cyclone separator for separation; and (5) a finished product is obtained. The device comprises the high-shearing reactor, the flashing dryer, the cyclone separator, a cloth-bag dust remover and an induced draft fan which are communicated in sequence; and the high-shearing reactor is provided with an acid-ester inlet, a powder inlet, an air inlet and a material outlet communicated with the flashing dryer.

Description

technical field [0001] The invention relates to a manufacturing process of surfactant particles, in particular to a manufacturing process of anionic surfactants. Background technique [0002] Laundry powder is a granular detergent based on anionic surfactants, which are widely used in daily life. The anionic surfactants are mainly sodium alkylbenzene sulfonate, sodium ethoxylated alkyl sulfate (AES) Sodium alkenyl sulfonate, sodium fatty acid methyl ester sulfonate (MES), etc. The current production process of washing powder mainly adopts high-tower spray drying, that is, surfactants, additives and water are mixed into a slurry with a solid content of about 60%, and then sprayed into fine mist droplets by high-pressure pumps and injectors , and conduct heat transfer with hot air at 200-300°C to dry the droplets into laundry powder particles in a short time. [0003] The high-tower spray drying process adopts hot air drying at 200-300°C, which consumes a lot of energy; and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D1/83C11D1/28C11D1/22C11D3/60C11D11/00C11D17/06B01J19/18
Inventor 史立文任国晓方灵丹雷小英卢学军徐含飞胡洁张义勇
Owner ZANYU TECH GRP CO LTD
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