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Device and method for continuous production of spherical sodium benzoate

A sodium benzoate and spherical technology is applied in the field of devices for continuous production of spherical sodium benzoate, which can solve the problems of waste of resources and low production efficiency, and achieve the effects of increasing production capacity, saving resources and reducing costs.

Active Publication Date: 2019-03-29
WUHAN YOUJI IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such intermittent granulation leads to low production efficiency and waste of resources

Method used

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  • Device and method for continuous production of spherical sodium benzoate

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Embodiment 1

[0030] A kind of device of continuous production spherical sodium benzoate, this device comprises air pretreatment system, raw material system, granulation system and screening system, wherein: described granulation system comprises granulation tower 1 and with described granulation tower 1 upper end The connected cyclone separator 2, and the induced draft fan 3 connected with the top of the cyclone separator 2; the granulation system is connected with the air pretreatment system, and the air pretreatment system includes a coarse filter connected in sequence 4. The blower 5 and the air heater 6; the outlet end of the air heater 6 communicates with the air inlet at the bottom of the prilling tower 1; the feed port of the prilling tower 1 is connected to the raw material system, and the raw material system Comprising a slurry pool 7 and an atomizer 8, the outlet of the atomizer 8 is connected with the feed inlet of the prilling tower 1; the discharge port of the prilling tower 1 ...

Embodiment 2

[0042] Utilize the device granulation method of continuous production spherical sodium benzoate described in embodiment 1 as follows:

[0043] Before the new drive, spread 1-2 tons of spherical sodium benzoate finished product on the granulation tower as granulation seeds in advance, and then operate according to the following steps:

[0044] 1) adding mass concentration in the slurry tank is 42% sodium benzoate slurry;

[0045] 2) Start the induced draft fan, blower and air heater. After the air is purified by the coarse filter, it is sent to the air heater for heating by the blower, and then sent to the prilling tower for upward blowing; the pressure of the blower is 15KPa, and the temperature of the air heater is 180 ~200℃;

[0046] 3) Start the atomizer, the atomization pressure is 1.2MPa, and the sodium benzoate slurry in the slurry tank is transported to the prilling tower, and atomized and sprayed to form spherical sodium benzoate particles;

[0047] 4) After atomizin...

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Abstract

The invention discloses a device for continuously producing spherical sodium benzoate and a method for continuously producing spherical sodium benzoate by using the device. The device comprises an air pretreatment system, a raw material system, a prilling system and a sieving system. A prilling method by using the device comprises the following steps: 1) injecting a sodium benzoate slurry into a slurry pool; 2) starting an induced draft fan, an air blower and an air heater, after purifying the air by a coarse filter, feeding purified air to a prilling tower, and blowing air upwards; 3) starting an atomizer, atomizing the sodium benzoate slurry in the slurry pool and then conveying atomized sodium benzoate slurry into the prilling tower for prilling so as to form spherical sodium benzoate particles; 4) carrying out separation treatment on the sodium benzoate particles in the prilling tower; 5) feeding the sodium benzoate particles through a discharge hole of the prilling tower into a classifying screen for sieving treatment, and evacuating and separating the sodium benzoate particles through a discharge hole of a cyclone separator; and 6) carrying out packaging treatment. By using the device, the production efficiency of the spherical sodium benzoate can be effectively improved, the environmental pollution is reduced, and the resources are saved.

Description

technical field [0001] The invention belongs to the technical field of organic chemical industry, in particular to a device and method for continuously producing spherical sodium benzoate. Background technique [0002] Sodium benzoate is a preservative widely used in food and pharmaceutical industries because of its broad-spectrum bactericidal properties and low toxicity. Sodium benzoate currently on the market is generally divided into three types: powder, columnar and spherical. Powdered sodium benzoate has poor fluidity and is easy to harden during storage and transportation. It needs to be crushed again when used in downstream products, resulting in waste of manpower and energy and environmental pollution. In addition, powdered sodium benzoate is prone to dust, causing pollution and affecting The working environment, and because of its tendency to generate static electricity, also affects the packaging process. Columnar sodium benzoate has good fluidity, is not easy to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J2/02C07C51/41C07C63/08
CPCB01J2/02C07C51/41C07C63/08
Inventor 黄正望胡国飞孙波吴骏陈乐
Owner WUHAN YOUJI IND
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