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Paraquat emetic adding device and application thereof

A paraquat emetic and adding device technology, applied in the application, herbicides, algicides, biocides and other directions, can solve the problems of not meeting the prescribed standards, low solubility of the emetic, avoiding volatilization and degradation, and improving safety. The effect of coefficients

Active Publication Date: 2015-01-07
NANJING GAOZHENG AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, through the actual pilot production, it was found that 0.08% of the emetic contained in the paraquat mother liquor was spray-dried at a high temperature of 120-180 degrees, and the effective content of the emetic was degraded to only 0.02%; and the solubility of the emetic in the mother liquor was very low , only about 0.2%, even if the emetic in the emetic additive solution is dissolved to the maximum dissolved amount, the effective content of the emetic will be degraded to only 0.05% after high-temperature spray drying, which is still not as high as the emetic in the paraquat preparation In order to meet the prescribed standard of paraquat, emetic ingredients must be added again. In view of the above problems, our company has invented an emetic adding method for paraquat soluble granules after many experiments.

Method used

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  • Paraquat emetic adding device and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] This embodiment provides a paraquat emetic addition device, such as figure 1 As shown, the emetic agent supply mechanism and the emetic agent atomization mechanism are included; the emetic agent atomization mechanism includes an emetic agent pressurized air supply structure and an emetic agent two-fluid nozzle 4, and the emetic agent pressurized air supply structure and the emetic agent The feeding mechanism is in communication with the emetic two-fluid nozzle 4, and the emetic two-fluid nozzle 4 is placed inside the lower cone of a separate drying tower 1.

[0067] The distance between the above-mentioned emetic two-fluid nozzle 4 and the bottom end of the drying tower 1 is (1 / 10, 1 / 5) of the overall height of the drying tower 1, specifically 1 / 10, 1 / 9, 1 / 8, 1 / 7, 1 / 6 or 1 / 5.

[0068] In this embodiment, the above-mentioned emetic agent pressurized air supply structure is an air compressor 15, and the air compressor 15 is in communication with the above-mentioned emetic age...

Embodiment 2

[0072] This embodiment provides a spray-drying flow granulation process of paraquat water-soluble granules using the paraquat emetic addition device provided in the first embodiment, including the following steps:

[0073] (1) Preparation of raw materials: formulating liquid mixture of preparations and emetic additives according to requirements;

[0074] (2) Spray drying and granulation: The preparation liquid mixture prepared in the above step (1) is transported to the above drying tower 1, the preparation liquid mixture is atomized into fine droplets, and the fine droplets and the drying tower 1 The hot air contact becomes a semi-dry powder; at the same time, the emetic additive liquid in the additive liquid mixing tank 16 is delivered to the emetic two-fluid nozzle 4 through the peristaltic pump 17 and compressed air delivered by the air compressor 15 It is atomized into emetic droplets under the action, and the emetic droplets are in contact with the semi-dry powder falling fro...

Embodiment 3

[0085] This embodiment provides a paraquat water-soluble granule spray drying flow granulating device using the paraquat emetic addition device in the first embodiment, and the paraquat water soluble granule spray drying flow granulating device can be applied to the second embodiment Paraquat water-soluble granules spray drying flow granulation process, and in addition to the paraquat emetic addition device of the first embodiment, it also includes a feeding mechanism, an atomizing mechanism, an air inlet mechanism, a drying granulation mechanism, Vibration fluidized drying and cooling mechanism and exhaust mechanism.

[0086] Such as figure 1 As shown, the above-mentioned drying and granulation mechanism includes a granulation and air supply structure connected to a drying tower; the top of the drying tower 1 is provided with a first input port 1.1 and a first output port 1.2, and a second input port 1.3 is provided at the bottom of the drying tower 1, and A built-in fluidized ...

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Abstract

The invention discloses a paraquat emetic adding device and an application thereof. The paraquat emetic adding device comprises an emetic supply mechanism and an emetic atomization mechanism, wherein the emetic atomization mechanism comprises an emetic pressurization air supply structure and an emetic two-fluid nozzle, and both the emetic pressurization air supply structure and the emetic supply mechanism are communicated with the emetic two-fluid nozzle which is arranged in a lower cone of an additionally arranged drying tower. The paraquat emetic adding device can guarantee that the content of the emetic reaches the standard and can increase the safety factor of paraquat products.

Description

[0001] Technical field [0002] The invention relates to the technical field of spray drying and flow granulation of paraquat water-soluble granules, in particular to a paraquat emetic addition device and its application. Background technique [0003] Paraquat, a bipyridine salt type of fast-killing herbicide, has contact effect and certain systemic effect. It can kill most gramineous and broad-leaved weeds. The green leaves begin to die after being in contact with the liquid for a few hours. If it rains in the next hour, the efficacy of the medicine will not be affected. The medicinal solution has no adverse effects on mature or brown bark and vines. It is quickly inactivated after contact with the soil. It does not affect the roots of the crops. It can prevent and control various annual weeds. It is mainly suitable for the control of orchards, mulberry orchards, rubber orchards, corn, sugarcane , Soybeans and weeds from nursery crops. Due to this advantage, this pesticide is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J2/04B01J2/16A01N43/40A01N25/14A01P13/00
CPCA01N25/14A01N43/40B01J2/04B01J2/16B01J2204/002B01J2208/00B01J2219/00761
Inventor 汪茂勤汪莘杰
Owner NANJING GAOZHENG AGROCHEM
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