A low-speed airflow drying equipment

An airflow drying and equipment technology, which is applied in the direction of drying gas arrangement, lighting and heating equipment, drying, etc., can solve the problems of unguaranteed quality of dried materials, reduced drying efficiency, and poor drying effect, so as to improve the uniformity of moisture content, Improve the sensory quality and reduce the extreme difference in moisture content

Active Publication Date: 2017-10-27
JIANGSU XINYU TIANCHENG ENVIRONMENTAL PROTECTION ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional airflow dryer has complex structure and poor drying effect
Moreover, the wet product is blown into the knife pipe, causing sticking and sticking to the inner wall of the drying pipe, which is not easy to clean, reduces the drying efficiency, and cannot guarantee the quality of the dry material

Method used

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  • A low-speed airflow drying equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] This embodiment provides a low-speed airflow drying device with a structure such as figure 1 As shown, it includes a hot blast boiler 1, an induced draft fan 2, an airflow drying chamber 3, a gas material cyclone separator 4 and a bag filter 5. The air outlet of the hot blast boiler is connected to the air inlet of the airflow drying chamber through a feeding pipeline 7. On the feeding pipeline, There is a material inlet 6, the air outlet of the airflow drying chamber is connected with the gas material separator, the waste gas outlet of the gas material separator is connected with the dust collector, and the air outlet of the dust collector is connected with the air inlet of the hot blast boiler through the induced draft fan; The inner wall of the feeding pipe and air drying chamber is coated with an anti-adhesive coating. The anti-adhesive coating includes the following components in parts by mass: novolac epoxy resin: 55 parts, pigments and fillers: 13 parts, KH560 sil...

Embodiment 2

[0033] This embodiment provides a low-speed airflow drying device, the structure is the same as that of Embodiment 1, the difference lies in the components of the anti-adhesive coating, and the anti-adhesive coating includes the following components in parts by mass: novolac epoxy resin: 57 Parts, pigments and fillers: 14 parts, KH560 silane coupling agent: 5 parts, ethylenediamine curing agent: 5 parts, polyvinyl acetate: 3 parts, ammonium molybdate: 4 parts, polymethylphenylsiloxane: 5 parts, zinc borate: 5 parts, solvent: 31 parts, barium sulfate: 7 parts;

[0034] The solvent is a mixed solvent of cyclohexanone and n-butanol, and the volume ratio of cyclohexanone and n-butanol is 3.5:1; the fineness of the pigment and filler is 150 mesh, and the pigment and filler include the following components in parts by mass: barium sulfate: 16 parts, talcum powder: 8 parts, lead oxide: 8 parts, carbon black: 4 parts, zinc powder: 3 parts;

[0035] The preparation method of the novol...

Embodiment 3

[0045] This embodiment provides a low-speed airflow drying device, the structure is the same as that of Embodiment 1, the difference lies in the components of the anti-adhesive coating, and the anti-adhesive coating includes the following components in parts by mass: novolak epoxy resin: 59 Parts, pigments and fillers: 15 parts, KH560 silane coupling agent: 7 parts, polyamide-650: 7 parts, silicone: 4 parts, ammonium molybdate: 6 parts, acrylic acid: 7 parts, zinc borate: 6 parts, solvent : 38 parts, barium sulfate: 10 parts;

[0046] The solvent is a mixed solvent of cyclohexanone and n-butanol, and the volume ratio of cyclohexanone and n-butanol is 3.5:1; the fineness of the pigment and filler is 200 mesh, and the pigment and filler include the following components in parts by mass: barium sulfate: 18 parts, talcum powder: 10 parts, lead oxide: 10 parts, carbon black: 5 parts, zinc powder: 5 parts;

[0047] The preparation method of the novolac epoxy resin in the anti-adhes...

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Abstract

The invention discloses a low-speed airflow drying equipment, which comprises a hot air boiler, an induced draft fan, an airflow drying chamber, a gas material separator and a dust collector. The air outlet of the hot air boiler is connected with the air inlet of the airflow drying chamber through a feeding pipe. The feed pipe is provided with a feed port, the air outlet of the airflow drying chamber is connected to the gas material separator, the waste gas outlet of the gas material separator is connected to the dust collector, and the air outlet of the dust collector is passed through the induced draft fan. Connect with the air inlet of the hot air boiler. The drying pipe of the present invention adopts a drying wind speed of about 3m / s to realize low wind speed airflow drying; the internal structure and inner wall surface are specially treated and the process parameters are optimized to reduce system loss; the equipment has low drying wind speed and uniform heating of materials It effectively improves the uniformity of the moisture content of the wet material, reduces the degree of compaction of the wet material during processing, reduces the compaction rate of the material by about 1 percentage point, and reduces the extreme moisture content of the dry export material. 1.5 percentage points, which improved the sensory quality of the samples.

Description

technical field [0001] The invention relates to a drying device, in particular to a low-speed airflow drying device. Background technique [0002] Airflow drying is a continuous high-efficiency solid fluidized drying method. It sends the wet material in the form of mud, powder or block into the hot air flow, and flows with it, so as to obtain the dry product dispersed into granules. The purpose of drying is to remove moisture or solvents from certain raw materials and semi-finished products. As far as the chemical industry is concerned, the purpose is to facilitate packaging, transportation, storage, processing and use of materials. The airflow dryer has the advantages of simple structure, less investment, short drying time and no change of heat-sensitive materials, so it is widely used in industrial production. The traditional airflow dryer has complex structure and poor drying effect. Moreover, the wet product is blown into the knife pipe, causing sticking and sticking ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F26B17/10F26B21/00
Inventor 王国建
Owner JIANGSU XINYU TIANCHENG ENVIRONMENTAL PROTECTION ENG
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