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Granulating equipment for making molten liquid into spherical granule product

A spherical particle and granulation device technology, which is applied in the direction of liquid separation into beads and granulation, can solve the problems of low thermal conductivity of paraffin wax, large footprint, and unreported device, and achieve good product quality, easy operation, and low energy consumption. low effect

Inactive Publication Date: 2004-07-28
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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  • Granulating equipment for making molten liquid into spherical granule product
  • Granulating equipment for making molten liquid into spherical granule product
  • Granulating equipment for making molten liquid into spherical granule product

Examples

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Effect test

Embodiment 1

[0027] 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:

[0028] 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 the device shown in Figure 1. The heating medium of the insulation board is steam, the heating medium of the switch is steam, and the cooling medium of the switch is cooling water. The cooling water is recycled after being cooled by the refrigeration device.

[0029] 1. When the diameter of the nozzle is 0.5mm, spherical paraffin particles with a diameter of 2-3mm are obtained. After draining and centrifugal fluidized bed dehydration, the water content is lower than 0.03%, and the pro...

Embodiment 2

[0031] 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:

[0032] 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 , using the device shown in Figure 3. The heating medium of the insulation board is steam, the heating medium for switching is steam, and the cooling medium for switching is liquid paraffin. 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 excellent.

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Abstract

The present invention relates to a granulating equipment for making the molten liquid into spherical granular product. When the density of molten liquid is less than density of cooling liquid, it contains pressure-equalizing molten liquid chamber, distribution plate positioned over the molten liquid chamber and equipped with several nozzles along its longitudinal direction, heat-insulating plate positioned over the distribution plate and equipped with heat-insulating holes correspondent to the above-mentioned nozzles and heating medium channel opening from side surface, tower body, nozzle opening and closing component, valve mechanical switch, cooling liquid inlet and product discharge outlet. When the density of molten liquid is greater than that of cooling liquid, it contains the components of molten liquid chamber, distribution plate, heat-insulating plate, tower body, cooling liquid inlet distributing device and product discharge device.

Description

technical field [0001] The utility model relates to a granulation device for making molten liquid into spherical particle products, 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 granulati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
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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