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Fluidized bed pelletizing process and special coating machine for coating tree seed

A technology of boiling granulation and sandwich pills, applied in the direction of seed coating/seed dressing, etc., can solve the problems of difficulty in ensuring single seed rate, easy to bond and form agglomeration, lack of research on granulation technology, etc. , the effect of increasing growth and reducing labor

Inactive Publication Date: 2007-11-07
ZHEJIANG FORESTRY ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a lack of research on the development of seed coating pilling agents for the growth characteristics of forest trees and the granulation technology suitable for the characteristics of forest tree seeds. Moreover, the commonly used drum-type coating method in agriculture is easy to stick into agglomerates, and it is difficult to ensure the single-seed rate, so it is not suitable for Forestry Seed Coating

Method used

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  • Fluidized bed pelletizing process and special coating machine for coating tree seed
  • Fluidized bed pelletizing process and special coating machine for coating tree seed
  • Fluidized bed pelletizing process and special coating machine for coating tree seed

Examples

Experimental program
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Effect test

Embodiment 1

[0056]Embodiment 1, this example is used for the coating pelletization of sweetgum sweetgum seed, and seed pitchy, oblong shape, processing technology flow is as follows (referring to Fig. 4):

[0057] a) Seed pre-selection, the main purpose is to use manual screening to remove most of the large impurities such as dust and chaff and light impurities such as dander and dust, so as to lay the foundation for further seed processing and effectively ensure the air cleanliness of the processing site , Eliminate the hidden danger of dust explosion and protect the health of operators.

[0058] b) The air sieve selects the seeds, and uses frequency conversion to control the wind speed and adjust the air volume, so that the seeds in free fall will be separated due to the different quality under the action of wind force. Unsaturated seeds with low mass are blown away by the wind, which also effectively removes dust.

[0059] c) Inner layer coating, pour 500 grams of selected seeds into ...

Embodiment 2

[0066] Example 2. This example is used for the coating pelletization of Schima superba seeds, which are flat, kidney-shaped, and have wings on the edges. The processing process is as follows:

[0067] a) Seed pre-selection, the main purpose is to use manual screening to remove most of the large impurities such as dust and chaff, and light impurities such as dander and dust.

[0068] b) The air sieve selects the seeds, and uses frequency conversion to control the wind speed and adjust the air volume, so that the seeds in free fall will be separated due to the different quality under the action of wind force.

[0069] c) Inner layer coating, pour 500 grams of selected seeds into the coating machine, start the coating machine, make the seeds boil, and spray the binder into the seeds with a high-pressure spray gun, and the binder is made of poly It is prepared by mixing 5% by weight of vinyl alcohol and 98% by weight of water.

[0070] The first dosage is about 5% of the seed we...

Embodiment 3

[0074] Embodiment 3, this example is used for the coating pelletization of duying seed, and the seed is generally oval and spherical. The processing process is as follows:

[0075] a) Seed pre-selection, the main purpose is to use manual screening to remove most of the large impurities such as dust and chaff, and light impurities such as dander and dust.

[0076] b) The air sieve selects the seeds, and uses frequency conversion to control the wind speed and adjust the air volume, so that the seeds in free fall will be separated due to the different quality under the action of wind force.

[0077] c) Inner layer coating, pour 1500 grams of selected seeds into the coating machine, start the coating machine, make the seeds boil, and spray the seeds with a high-pressure spray gun. It is prepared by mixing 4% by weight of vinyl alcohol and 96% by weight of water. The first dosage is about 5% of the seed weight, i.e. 75g, so that the binding agent is evenly distributed on the seed...

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Abstract

The present invention relates to fluidized bed palletizing process and special coating machine for coating tree seeds of all sizes and different shapes. The special coating machine has an air compressor, a control cabinet and a system unit connected to the air compressor. It features the system unit with bottom connected through a heat exchange cabinet to the heater, liquid inlet and material feeding port communicated separately to a liquid inlet pump and a material feeding bin, and top communicated via a silencer to an induced draft fan. The fluidized bed palletizing process includes the steps of: presorting of seed, wind sorting of seed, coating the seed with inner layer, coating the seed with intermediate layer, and polishing and coating the seed with colorizing layer.

Description

technical field [0001] The invention relates to forestry, in particular to a method for pelletizing and boiling granulating forest tree seeds and a special coating machine thereof. It is suitable for coating and pelletizing forest tree seeds. Background technique [0002] Afforestation and soil and water conservation are a basic national policy of our country, but the traditional afforestation method is inefficient and slow, and the survival rate of trees is not high. Seed pelleting can not only improve the quality of seeds and increase the germination rate of seeds, but also facilitate mechanical sowing and greatly reduce the amount of labor. It is the only way for the development of modern forestry. [0003] Existing patents on seed coating are mainly for pasture, tobacco, crops, etc. There is no report on the patent of coating technology for forestry seeds, and it is mainly for northern arid regions. "Shaanxi Forestry Science and Technology" published on April 24-25, 20...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C1/06
Inventor 江波沈爱华朱锦茹袁位高
Owner ZHEJIANG FORESTRY ACAD
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