Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Slow-release pesticide granule

A technology for slow-release pesticides and granules, applied in the field of pesticides, can solve the problems of not complying with energy saving and environmental protection, difficult to industrialize production, consume large heat energy, etc., and achieve the effects of improving the first pass rate, low cost and abundant resources.

Active Publication Date: 2014-02-19
HENAN GOODDAYS BIOLOGY DEV CO LTD
View PDF9 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it is a slow-release pesticide granule, the preparation method is too complicated, expensive equipment is needed to dry the gelatinized product, and a large amount of heat energy is consumed during the drying process, which is accompanied by environmental pollution, and the gelatinized product is not easily soluble in water. The active ingredients of the pesticides are mixed uniformly, and the modified starch can not form the state of encapsulating the active ingredients of the pesticides, so the preparation method of this patent is not suitable for the production of the active ingredients of the water-soluble and liquid pesticides; the use of solid ester-soluble pesticides is also very difficult. It is difficult to realize industrialized production. To achieve industrialized production, it is necessary to invest in expensive special drying equipment and environmental protection equipment. It also requires a large amount of heat energy consumption, high production costs, and does not meet the requirements of energy conservation and environmental protection.

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
  • Slow-release pesticide granule
  • Slow-release pesticide granule
  • Slow-release pesticide granule

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Preparation of 2% imidacloprid sustained-release pesticide granules

[0032] (1) Put 20.84kg of 96% imidacloprid granules, 20kg of methylcellulose, 30kg of hydroxypropylcellulose, 10kg of sodium dodecylbenzenesulfonate, 15kg of p-methylsulfonyl chloride, and 904.16kg of general clay into the double-helix mixer After stirring in the mixer for 20 minutes, pulverize.

[0033] (2) Slowly feed the product of (1) into the rotating disc granulator through the screw conveying system. Insert the steam pipe into the material while feeding, and let the steam flow while feeding, and turn the disc to granulate. When the granulation is completed, turn off the steam, and continue to rotate the disc granulator for 10-30 minutes, so that the particles in the disc can increase the hardness by rolling.

[0034] (3) Dry the product in (2) with hot air through a drum dryer.

[0035] (4) The product dried in (3) is cooled by air through a drum cooler.

[0036] (5) Sieve the cooled produc...

Embodiment 2

[0038] Preparation of 1% Abamectin Sustained Release Pesticide Granules

[0039] (1) Put 11.12kg of 90% Abamectin powder, 80kg of hydroxyethyl cellulose, 50kg of sodium lauryl sulfate, 10kg of p-toluenesulfonic acid, 10kg of acrylic acid, and 839kg of clay into the double-screw mixer The mixture was mixed for 30 minutes and pulverized.

[0040] (2) Slowly add the product of (2) into the rotating disc granulator through the belt conveyor, and add the product of (1) into the rotating disc granulator with heating function (the bottom can be heated by the electric disk), Spray water and heat while feeding, and the heating temperature is controlled at 65-100°C. Stop spraying water and heating after the material in the disc is basically completely granulated, and then turn the disc for 10-30 minutes.

[0041] (3) Dry the product of (2) with hot air through a drum dryer.

[0042] (4) Turn the dried material in (3) to a blower cooler for cooling.

[0043] (5) Sieve the cooled produc...

Embodiment 3

[0045] Preparation of 20% Chlorpyrifos Slow-release Pesticide Granules

[0046] (1) Add 222.3kg of 90% chlorpyrifos stock solution to 150kg of white carbon black for full adsorption, then add 100kg of hydroxypropyl methylcellulose, 20kg of calcium dodecylbenzenesulfonate, 30kg of p-toluenesulfonic acid, and 477.7kg of clay into the After stirring in a twin-screw mixer for 20 minutes, it was pulverized.

[0047] (2) Slowly add the product of (1) into the rotating disc granulator through the screw feeder, and at the same time insert the steam pipe into the material in the disc, and pass steam while feeding until the material in the disc is basically To granulate, turn the disc for another 10-30 minutes.

[0048] (3) Dry the product in (2) with hot air through a drum dryer.

[0049] (4) Cool the dried product in (3) through a drum cooler.

[0050] (5) Sieve the cooling material in (4) with a rolling grading sieve, return the unqualified part to step (1) for crushing, and pack ...

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 provides a slow-release pesticide granule, which is prepared by the following steps of: uniformly mixing a pesticide active component, cellulose, a surfactant, a cross-linking agent and a filling material according to a certain ratio, and crushing; then slowly adding a product into a circular-disc granulator and introducing water steam; introducing the steam while slowly adding materials to granulate; or slowly adding the product into the circular-disc granulator with a heating device, and adding the materials, spraying water and heating to granulate; after the granulation is finished, closing the steam or stopping water spraying, and rolling in a circular disc for 10-30 minutes; and finally, drying, cooling and sieving, and packaging qualified products to obtain the slow-release pesticide granule. The slow-release pesticide granule disclosed by the invention has the advantages of being simple in preparation method and small in equipment investment; and the aim of introducing the steam into the materials on the circular disc or spraying the water into the circular-disc granulator with a heating function, and heating is realized so as to gelatinize and crossly link the cellulose, the pesticide active component, the cross-linking agent, the surfactant and the filling material, and the first-pass yield of the product is improved.

Description

technical field [0001] The invention relates to the field of pesticides, in particular to a slow-release pesticide granule. Background technique [0002] The pesticide is made into a kind of pesticide that is measured as necessary, and it can reach the required place continuously and stably within a certain period of time, ensuring that there is a sufficient duration of effect that is basically the same as the growth period of the applied crops, reducing the number of pesticide applications, and reducing the impact of pesticides on the environment. Minimizing the pollution of pesticides is the direction of current research on pesticide preparations, and it is a necessary measure to achieve food stability, increase production and food safety. The pesticide formulations with the above functions can only be possessed by solid sustained-release pesticide granules. Because there are three ways to apply liquid slow-release pesticides to crops. 1. Spraying, 2. Root irrigation, 3....

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): A01N25/26A01N51/00A01N43/90A01N57/16A01N43/653A01P7/04A01P5/00
Inventor 徐博
Owner HENAN GOODDAYS BIOLOGY DEV CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products