Unlock instant, AI-driven research and patent intelligence for your innovation.

A nitrogen closed-circuit vc special drying device and its working method

A drying device, nitrogen technology, applied in the directions of drying gas arrangement, separation method, drying solid materials, etc., can solve the problems of hindering the manufacture of VC products, substandard discharge, material loss, etc., to reduce the falling speed, increase the blanking efficiency, The effect of extending the warranty period

Active Publication Date: 2020-03-31
CHANGZHOU YUTONG DRYING EQUIP
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the market demand at home and abroad is very large, but VC is extremely easy to oxidize, has low melting point, short warranty period, poor fluidity, easy to agglomerate, and the emission during the production process is not up to standard, which seriously hinders the manufacture of VC products.
The traditional VC powder preparation system uses an oven to dry the wet granules produced by the high-efficiency wet granulator. However, oven drying often leads to uneven drying of the wet granules, and the drying gas cannot be recycled during the drying process, resulting in material The loss is serious and not environmentally friendly

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A nitrogen closed-circuit vc special drying device and its working method
  • A nitrogen closed-circuit vc special drying device and its working method
  • A nitrogen closed-circuit vc special drying device and its working method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1 as figure 1 As shown, the nitrogen closed-circuit VC special drying device of this embodiment includes a vacuum feeder 1, a heating system, a vibration boiling dryer 2, a primary cyclone separator 3, a secondary cyclone separator 33, a condensation washing absorption tower 4 and nitrogen gas Source 5; as in figure 2 As shown, the vacuum feeder 1 includes a cylindrical feed section 14, a conical section 15, a cylindrical section 16, an inverted conical section 17, a cylindrical blanking section 18 and a discharge section from top to bottom. Section 14 is connected to the vacuum hopper 11 through a pipeline; the top of the small head of the conical section 15 is sealed and connected to the feed section 14, so that when the material 6 enters the conical section 15 through the feed section 14, the barrel diameter is enlarged to avoid The material adheres to the inner wall of the conical section 15. The discharge port 10 of the feeder is placed at the bottom of ...

Embodiment 2

[0047] The working method of the above-mentioned nitrogen closed-circuit VC special drying device comprises the following steps:

[0048] A. Start the nitrogen source 5 to provide nitrogen to each equipment of the unit, and start the heating system to make the nitrogen heated to the required temperature enter the vibration boiling dryer 2 .

[0049] B. Send the material 6 to be dried into the vacuum feeder 1 through the vacuum hopper 11, so that the VC material slides down to the fluidized bed plate 21 through the first inclined plate 19 and the second inclined plate 251.

[0050] C. The nitrogen gas heated by the low-pressure steam heat exchanger is introduced into the front end of the ebullating bed plate 21, so that the material is heated at the front end of the ebullating bed plate 21.

[0051] D. Start the vibrating motor 211 to vibrate the fluidized bed plate 21, so that the material 6 on the fluidized bed plate 21 is transported forward in a boiling state; introduce the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a special nitrogen closed-circuit VC drying apparatus and a working method thereof, wherein the special nitrogen closed-circuit VC drying apparatus comprises a vacuum feedingmachine, a heating system, a vibration boiling dryer, a first-stage cyclone separator, a second-stage cyclone separator, a condensation washing absorption tower and a nitrogen source. According to thepresent invention, the continuous drying production of the VC material is performed by using the nitrogen closed-circuit vibration boiling drying, wherein the drying is performed in the oxygen-free environment, and the low-temperature and high-air-volume drying process is used to reduce the final moisture content of the VC material to less than 0.08% so as to prolong the shelf life of the VC material; the problems of poor fluidity, easy agglomeration and easy caking of the material are solved by using the drying device capable of vibrating and boiling; and the water and the solvent in the gasstream are recovered by using the multi-stage condensation washing absorption tower, and demisting is performed by the water blocking device so as to minimize the water content in the circulating nitrogen, such that the special nitrogen closed-circuit VC drying continuous production line is formed.

Description

technical field [0001] The invention relates to the technical field of drying equipment, in particular to a nitrogen closed-circuit VC special drying device and a working method thereof. Background technique [0002] Vitamin C (Vitamin C, AsCorbiC ACid), also known as L-ascorbic acid, referred to as VC, is a water-soluble vitamin. The main effect of vitamin C depends on enhancing immunity, preventing cancer, heart disease, stroke, protecting teeth and gums and so on. In addition, insisting on taking vitamin C on time can also reduce skin melanin, thereby reducing dark spots and freckles, and making the skin fair. Foods rich in vitamin C include cauliflower, green peppers, oranges, grape juice, tomatoes, etc. It can be said that vitamin C content is quite a lot in all vegetables and fruits. Therefore, the market demand at home and abroad is very large, but VC is very easy to oxidize, has a low melting point, short warranty period, poor fluidity, easy to agglomerate, and the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B01D45/16B01D53/00B01D53/14B01D53/18F26B3/092F26B11/00F26B21/00F26B21/10F26B21/14F26B25/00
CPCB01D45/16B01D53/002B01D53/1487B01D53/18F26B3/092F26B11/00F26B21/001F26B21/003F26B21/10F26B21/14F26B25/00
Inventor 陆文光
Owner CHANGZHOU YUTONG DRYING EQUIP