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System for making melt water into globule granule

A technology of spherical particles and granulation device, which is applied in the direction of liquid separation into bead droplets and granulation, can solve the problems of low thermal conductivity of paraffin, large floor space, and no reported device, and achieves good product quality, easy operation, and energy consumption. low effect

Inactive Publication Date: 2005-01-19
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the cooling of liquid wax is indirect heat transfer through one side of the steel belt, and the thermal conductivity of paraffin wax is low, the heat transfer efficiency is low, a long steel belt is required, and the floor area is large. Generally, multiple granulation equipments are required to work at the same time.
[0008] In "Research on Wax Ball Forming Technology" ("Petroleum Refining and Chemical Industry", Volume 26, No. 8, Page 8-12, 1994), a process of wax balling by spraying method was reported, but no specific report was made. installation

Method used

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  • System for making melt water into globule granule
  • System for making melt water into globule granule
  • System for making melt water into globule granule

Examples

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Embodiment 1

[0026] Embodiment 1: The present invention is carried out in the granulation of paraffin melt liquid, and the density of melt liquid is less than the density of cooling liquid, and its basic parameters and implementation effect are as follows:

[0027] The melting point of paraffin is 58°C, and the density of the molten liquid is about 776kg / m 3 , the density of solid paraffin is about 916kg / m 3 , the temperature of the paraffin melt is 80°C, and cooling water is used as the cooling liquid. use figure 1 device shown. The heating medium for the switch is steam, and the cooling medium for the switch is cooling water. The cooling water is recycled after being cooled by the refrigeration device.

[0028] 1. When the diameter of the nozzle is 0.8mm, spherical paraffin particles with a diameter of 3-5mm are obtained. After draining and air-drying, the water content is less than 0.03%, and the product components have no external pollution components, meeting the product quality r...

Embodiment 2

[0030] Embodiment two: the present invention has carried out granulation to urea molten liquid in liquid paraffin, and the density of molten liquid is greater than the density of cooling liquid, and its basic parameters and implementation effect are as follows:

[0031] The melting point of urea is 132.7°C, and the density of urea melt is 1335kg / m 3 , liquid paraffin is used as cooling liquid, and the density of liquid paraffin is about 845kg / m 3 ,use image 3 device shown. The heating medium for the switch is steam, the cooling medium for the switch is cooling water, and the cooling water is tap water. The liquid paraffin is recycled after being cooled by a refrigeration device. When the nozzle diameter is 1.2mm, spherical urea particles with a diameter of 3-6mm are obtained, and after draining and centrifugal fluidized bed dewaxing, the product quality is good.

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Abstract

The invention discloses a granulation device for making spheroidal particle from melt liquid, which relates to the field of melt liquid forming technology. The device is characterized in that the granulation device comprises: a melt liquid chamber with uniform pressure, a distribution plate with multiple nozzles mounted longitudinally on the melt liquid chamber, nozzle switching parts connected with distribution plate, a tower flange, and a tower connected with the flange. The nozzle switching part mounted on the side of the distribution plate and controlled by a valve is a channel for switching cooling medium and heating medium. On the tower, an inlet for cooling liquid and an outlet for product are arranged. When the density of melt liquid is more than that of cooling liquid, the top-down mounting sequence is melt liquid chamber, distribution plate, tower body, inlet distribution device of cooling liquid, and product discharging device. The melt liquid flows down via nozzle, liquid drop moves down and is cooled into particle in the tower and is discharged by the lower discharge device. The granulation device is characterized by high granulation efficiency and heat changing efficiency, energy saving and low cost.

Description

technical field [0001] The utility model relates to a granulation device for making molten liquid into spherical particles, which belongs to the technical field of molten liquid forming. Background technique [0002] The forming of chemical products is an important link in chemical production. Many liquid chemical products need to be made into solid particles to facilitate storage, packaging, transportation and use, such as paraffin, sulfur, rosin, polymers, urea and other organic products, as well as some Salt products whose intermediate state is molten liquid, such as chemical fertilizers, calcium chloride and other salts. There are many kinds of forming technologies for molten liquid, and the design and selection of the granulation method depends on the characteristics of the specific granulation raw materials. Different materials have different granulation methods, such as oil cooling granulation technology, steel belt granulation technology, tower type granulation techn...

Claims

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Application Information

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IPC IPC(8): B01J2/06
Inventor 王亭杰方九阳奚元宙魏飞金涌
Owner TSINGHUA UNIV
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