CN214076596U

CN214076596U - Preparation device of glyphosate liquid preparation

Info

Publication number: CN214076596U
Application number: CN202021420211.8U
Authority: CN
Inventors: 刘为东; 王翼飞; 吴晓辉; 蔡荣军; 钱勇; 吴昊
Original assignee: Nantong Jiangshan Agrochemical And Chemicals Co ltd
Current assignee: Nantong Jiangshan Agrochemical And Chemicals Co ltd
Priority date: 2020-07-19
Filing date: 2020-07-19
Publication date: 2021-08-31
Anticipated expiration: 2030-07-19

Abstract

The utility model discloses a preparation device of glyphosate liquid preparation, which is provided with a reaction kettle, a buffer tank and a static mixer; the stirring shaft of the reaction kettle is connected with an upper paddle and a lower paddle, the rotating radius of the lower paddle is larger, and the rotating radius of the upper paddle is smaller; the baffle plates are arranged between the temperature control coil pipes in the reaction kettle at intervals, and sawteeth can be arranged on the inner edges of the baffle plates. The utility model has reasonable design to the reaction kettle, strengthens the mixing effect, reduces the energy consumption of cooling and makes the production process cleaner; compared with the prior art, the method has the advantages of shortened reaction period and stable preparation quality.

Description

Preparation device of glyphosate liquid preparation

Technical Field

The utility model relates to a production facility of glyphosate preparation.

Background

Glyphosate (N-phosphonomethylglycine) is an efficient, broad-spectrum, low-toxicity and sterilant herbicide after seedling, is very effective in preventing and controlling perennial deep-rooted malignant weeds, has good biological activity, belongs to systemic conductive herbicides, and is one of the most widely applied herbicides at present. Glyphosate is typically formulated for use as a liquid formulation.

The prior glyphosate preparation production process is intermittent production, during the production process, the solid grass is fed in an open type or a semi-open type, a large amount of dust is easily generated, the reaction heat release is large when ammonia is introduced or isopropylamine is dripped, the ammonia gas or the isopropylamine is easy to volatilize and leak to cause large influence on the field environment when the temperature is high, and simultaneously, the glyphosate preparation has high viscosity, so that the stirring energy consumption is high, the effect is poor, and the reaction period is prolonged.

The invention of application number 2004100891407 provides a glyphosate preparation and a preparation method thereof, wherein the glyphosate is a glyphosate mixed solution obtained by oxidizing N- (phosphonomethyl) iminodiacetic acid, alkali is added after dehydration to convert the glyphosate into salt, then a surfactant is added into the obtained salt mixed solution as an auxiliary agent, the surfactant is a mixture consisting of one or more of a nonionic surfactant, an amphoteric surfactant or an organosilicon surfactant, and the mixture is uniformly mixed to obtain the glyphosate preparation. The invention directly prepares the glyphosate preparation from the synthesized glyphosate technical material, reduces the equipment and personnel investment in the production, but has poor material stirring effect and serious pollution on the production site.

Disclosure of Invention

Utility model purpose:

provides a glyphosate liquid preparation device with uniform material stirring, clean working condition and reduced energy consumption.

The technical scheme is as follows:

the glyphosate liquid preparation device can lead the glyphosate preparation to be continuously produced efficiently, cleanly and continuously through an automatic control instrument. The device comprises a reaction kettle, a buffer tank, a static mixer (eliminating the condition of foam generation in the mixing process) or a filter which are connected in sequence according to the reaction sequence; putting glyphosate raw drug, water and alkali liquor (sodium hydroxide, potassium hydroxide, ammonia water and organic base isopropylamine) into a reaction kettle in proportion, and reacting the raw materials in the reaction kettle by fully stirring and controlling the temperature; salt solution (sodium salt, potassium salt, ammonium salt, isopropylamine salt and the like) is formed, then overflowing (reducing the amount of unreacted solid grass entering a subsequent working section and ensuring the product yield) enters a buffer tank, and the mixture and the auxiliary agent are integrally pumped into a static mixer for mixing or filtered to obtain the glyphosate preparation.

An upper paddle and a lower paddle are connected to a stirring paddle shaft of the reaction kettle, and the rotating radius of the lower paddle is larger, so that glyphosate powder is fully dissolved and reacted; the glyphosate solution has high viscosity, the rotating radius of the upper paddle is small, the rotating resistance is reduced, and the energy consumption is saved on the premise of ensuring uniform stirring.

The cooling mode of the reaction kettle is inner coil type cooling, 4-8 sets of in-line coils are adopted as the inner coils and are arranged around the inner side of the reaction kettle; 4-8 baffles are evenly distributed among the sets of coil pipes;

the inner side of the baffle exceeds the inner side cylindrical surface where the coil pipe is positioned, so that the outer side of the material is hindered (the inner side of the material is stirred by the paddle), the boundary layer separation phenomenon of the material is fully utilized, the stirring efficiency of the periphery of the material is improved, the flowing uniformity of the material is improved, and the material is fully stirred and fully cooled by cooling liquid in the coil pipe; a certain distance is reserved between the baffle and the paddle, collision is avoided, and rotation of materials is facilitated.

The baffle is provided with two bends (formed by sequentially connecting an upper-section crosspiece, an upper-section vertical crosspiece, a middle-section crosspiece and a lower-section vertical crosspiece, wherein the upper-section crosspiece and the middle-section crosspiece are horizontally arranged, and the upper-section vertical crosspiece and the lower-section vertical crosspiece are parallel to the propeller shaft); the crosspiece of the upper section extends more towards the propeller shaft direction and is higher than the upper paddle to shield the upper material and prevent glyphosate flying dust; the middle section crosspiece is a little higher than the position of lower part paddle, and it is less to extend to the oar axle direction, avoids colliding with lower part paddle. The middle-section crosspiece shields the liquid level of the materials at the lower part, and the splashing of the solution during stirring is prevented.

The gaps (instead of the whole top cover) are arranged between the crosspieces of the upper sections of the baffles, so that raw materials can be added conveniently, heat dissipation water vapor volatilization of materials can be facilitated, and product overflow is facilitated.

The inner edge of the baffle is provided with sawteeth, the gaps among the sawteeth not only reduce the resistance of the materials, but also increase the shearing and stirring capacity of the materials.

Has the advantages that:

the utility model discloses a to the redesign of the cauldron body, especially the special design of paddle and baffle, strengthened the material mixing effect, reduce the cooling energy consumption, make the production process cleaner, the material reaction is high-efficient, the productivity promotes. Compared with the prior art, the method has the advantages of shortened reaction period, accurate content control and stable preparation quality.

Drawings

FIG. 1 is a view of the dispensing apparatus of the present invention;

FIG. 2 is a sectional view of a reaction vessel according to the present invention;

FIG. 3 is a schematic cross-sectional view of another embodiment of the shaft paddle and baffle of the reactor vessel of the present invention;

in the figure, 1-propeller axis; 2-upper blade; 3-lower blade; 10-baffle (4-upper crosspiece, 5-upper vertical crosspiece, 6-middle crosspiece, 7-lower vertical crosspiece); 20-the wall of the reaction kettle; 30-row coil pipes; 40-a buffer tank; 50-a static mixer; 60-filter.

Detailed Description

The configuration apparatus shown in FIG. 1, having a reaction vessel, a buffer tank, a static mixer, or having a filter; the stirring shaft of the reaction kettle shown in fig. 2 and 3 is connected with an upper paddle and a lower paddle, the lower paddle has a larger rotation radius, and the upper paddle has a smaller rotation radius.

4 sets of in-line coil pipes are arranged in the reaction kettle and arranged around the inner side of the reaction kettle; 4 baffles are evenly distributed among the plurality of sets of coil pipes; the inner side of the baffle exceeds the inner side cylindrical surface where the coil is located, and a certain distance is reserved between the baffle and the paddle.

The baffle is formed by sequentially connecting an upper section crosspiece, an upper section vertical crosspiece, a middle section crosspiece and a lower section vertical crosspiece; the upper section crosspiece and the middle section crosspiece are horizontally arranged, and the upper section vertical crosspiece and the lower section vertical crosspiece are parallel to the propeller shaft; the crosspiece of the upper section extends more towards the propeller shaft direction and is higher than the upper paddle; the middle section crosspiece slightly extends to the oar axle direction for a short time, is higher than the position of lower part paddle.

Compared with intermittent production equipment, the device has the advantages of reduced energy consumption, improved capacity and greatly reduced manual operation.

Claims

1. A preparation device of glyphosate liquid preparation comprises a reaction kettle, a buffer tank and a static mixer; the method is characterized in that: comprises a reaction kettle, a buffer tank and a static mixer which are connected in sequence according to the reaction sequence;

the stirring paddle shaft of the reaction kettle is connected with an upper paddle and a lower paddle, the rotating radius of the lower paddle is larger, and the rotating radius of the upper paddle is smaller.

2. The apparatus of claim 1 for dispensing a liquid formulation of glyphosate, wherein: 4-8 sets of in-line coil pipes are arranged in the reaction kettle and arranged around the inner side of the reaction kettle; 4-8 baffles are evenly distributed among the sets of coil pipes; the inner side of the baffle exceeds the inner side cylindrical surface where the coil is located, and a certain distance is reserved between the baffle and the paddle.

3. The apparatus of claim 1 for dispensing a liquid formulation of glyphosate, wherein: the baffle is formed by sequentially connecting an upper section crosspiece, an upper section vertical crosspiece, a middle section crosspiece and a lower section vertical crosspiece; the upper section crosspiece and the middle section crosspiece are horizontally arranged, and the upper section vertical crosspiece and the lower section vertical crosspiece are parallel to the propeller shaft; the crosspiece of the upper section extends more towards the propeller shaft direction and is higher than the upper paddle; the middle section crosspiece extends a little to the oar axle direction, is higher than the position of lower part paddle.

4. The apparatus of claim 2 or 3, wherein: the inner edge of the baffle is provided with saw teeth.