A glyphosate salt-forming reaction device

Abstract

The utility model discloses a glyphosate salt-forming reaction device, comprising a glyphosate raw material storage tank connected to a preparation kettle via a liquid inlet, a salt-forming agent pipeline provided in the preparation kettle, the salt-forming agent pipeline connected to the salt-forming agent storage tank via a salt-forming agent regulating valve; a nitrogen supplement pipeline provided in the salt-forming agent pipeline, the nitrogen supplement pipeline connected to a gas storage tank via a nitrogen supplement regulating valve; a preparation kettle bottom valve provided at the bottom of the preparation kettle. The utility model arranges the nitrogen supplement pipeline in the salt-forming agent pipeline to avoid crystallization generated by the salt-forming reaction at the salt-forming agent pipeline port from clogging the pipeline, and at the same time, the nitrogen supplement pipeline can transport inert gas into the device to ensure that the combustible gas in the device is not within the explosion limit range, thereby reducing safety hazards.

Description

Technical Field

[0001] The utility model belongs to the technical field of glyphosate production, and specifically relates to a glyphosate salt-forming reaction device. Background Art

[0002] Glyphosate, chemical name is N-(phosphocarboxylmethyl)glycine, commonly known as Roundup, Glyphosate, Rhodapur, Shibaq, etc. Molecular formula C3H8NO5P, molecular weight 169.1. Pure product is a non-volatile white, odorless solid, stable at room temperature, non-flammable, non-explosive, melting point 230℃ (with decomposition), corrosive to medium carbon steel and galvanized iron. The solubility in water at 25℃ is 1.2%, insoluble in general organic solvents, and its salt has good solubility. Glyphosate has the characteristics of systemic conduction, broad spectrum, and killing, and has a killing effect on all weeds and crops except glyphosate-resistant genetically modified crops.

[0003] Since glyphosate is poorly soluble in water and plants have poor absorption of glyphosate acid, it is often processed into various glyphosate salts based on glyphosate acid in industry. Common salt-forming agents include ammonia, isopropylamine, dimethylamine, potassium hydroxide, etc. Conventional dosage forms include soluble solutions, soluble granules (powders), etc.

[0004] Glyphosate soluble concentrate is generally produced by the reaction of glyphosate technical and salt-forming agent in a kettle. The salt-forming agent is added into the kettle through a pipeline. Crystallized salt is easily formed at the port of the salt-forming agent pipeline, which blocks the pipeline. The salt-forming agent is easily volatilized into gas at the port, and a flammable and explosive confined space is easily formed in the kettle.

[0005] Therefore, it is necessary to design a device suitable for glyphosate salt formation to prevent pipeline blockage and explosion risks during the salt formation reaction and improve safety. Utility Model Content

[0006] In view of the above technical problems, the utility model provides a glyphosate salt-forming reaction device, in which a nitrogen supply pipeline is arranged in a salt-forming agent pipeline to avoid crystallization produced by the salt-forming reaction at the port of the salt-forming agent pipeline from clogging the pipeline. At the same time, the nitrogen supply pipeline can transport inert gas into the device to ensure that the combustible gas in the device is not within the explosion limit, thereby reducing safety hazards.

[0007] In order to achieve the above-mentioned purpose, the utility model provides a glyphosate salt-forming reaction device, wherein a glyphosate raw material storage tank is connected to a preparation kettle via a liquid inlet, a salt-forming agent pipeline is arranged in the preparation kettle, and the salt-forming agent pipeline is connected to the salt-forming agent storage tank via a salt-forming agent regulating valve; a nitrogen supplement pipeline is arranged in the salt-forming agent pipeline, and the nitrogen supplement pipeline is connected to a gas storage tank via a nitrogen supplement regulating valve; and a preparation kettle bottom valve is arranged at the bottom of the preparation kettle.

[0008] Preferably, a combustible gas detector is provided on the top of the preparation kettle.

[0009] Preferably, the top of the preparation kettle is connected to a tail gas treatment device via a tail gas pipeline, and the tail gas treatment device is connected to a gas storage tank pipeline.

[0010] Preferably, a stirring device is provided inside the preparation kettle.

[0011] Preferably, a jacket is provided outside the preparation kettle.

[0012] Further preferably, a water outlet valve is provided at the bottom of the jacket, the water outlet valve is connected to the heat exchange storage tank, and the heat exchange storage tank is connected to the water inlet valve pipeline at the top of the jacket.

[0013] Preferably, the port of the salt-forming agent pipeline is flush with the port of the nitrogen supplement pipeline.

[0014] The beneficial effects of the utility model are:

[0015] 1. Set up a nitrogen replenishment pipeline to continuously introduce inert gas into the preparation kettle to reduce the concentration of combustible gas in the preparation kettle, so that it is always kept below the explosion limit and reduce safety hazards.

[0016] 2. Set the nitrogen replenishment pipeline inside the salt-forming agent pipeline. While ensuring that the salt-forming agent enters the preparation kettle smoothly, use nitrogen to blow away the salt crystals gathered at the port of the salt-forming agent pipeline to prevent them from gathering at the pipeline port and causing risks such as blockage, pressure buildup, and explosion.

[0017] 3. The ports of the nitrogen supply pipeline and the salt-forming agent pipeline are both 45° inclined to increase the contact area.

[0018] 4. Equipped with tail gas absorption device, gas storage tank and heat exchange storage tank, the combustible gas generated by the reaction in the preparation kettle is absorbed and recycled as nitrogen. At the same time, the water in the jacket can also be recycled to improve material utilization, reduce costs and environmental impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 1 is a schematic diagram of the structure of the utility model, in which 1 is a preparation kettle, 2 is a stirrer, 3 is an exhaust gas pipeline, 4 is a salt-forming agent pipeline, 5 is a salt-forming agent regulating valve, 6 is a nitrogen replenishing pipeline, 7 is a nitrogen replenishing regulating valve, 8 is a preparation kettle jacket, 9 is a preparation kettle bottom valve, 10 is a combustible gas detector, 11 is an exhaust gas treatment device, 12 is a gas storage tank, 13 is a salt-forming agent storage tank, 14 is a water inlet valve, 15 is a water outlet valve, 16 is a heat exchange storage tank, 17 is a liquid inlet, and 18 is a glyphosate raw material storage tank. DETAILED DESCRIPTION

[0020] The technical solution of the utility model is further explained below in conjunction with the accompanying drawings and specific embodiments. It is worth noting that the following embodiments are only preferred embodiments of the utility model and should not be understood as limiting the utility model. The protection scope of the utility model shall be based on the content recorded in the claims. Any modification or replacement made by a person skilled in the art to the technical solution of the utility model without creative work shall fall within the protection scope of the utility model.

[0021] Example 1

[0022] A glyphosate salt-forming reaction device, wherein a glyphosate raw material storage tank 18 is connected to a preparation kettle 1 via a liquid inlet 17, a salt-forming agent pipeline 4 is arranged in the preparation kettle 1, and the salt-forming agent pipeline 4 is connected to a salt-forming agent storage tank 13 via a salt-forming agent regulating valve 5, the salt-forming agent in the salt-forming agent storage tank is transported to the preparation kettle 1, and the dripping speed of the salt-forming agent is controlled by the salt-forming agent regulating valve 5, so that the salt-forming reaction occurs in an orderly manner; a nitrogen replenishing pipeline 6 is arranged in the salt-forming agent pipeline 4, the nitrogen replenishing pipeline 6 is connected to a gas storage tank 12 via a nitrogen replenishing regulating valve 7, the nitrogen stored in the gas storage tank 12 is transported to the preparation kettle 1, the concentration of combustible gas in the preparation kettle 1 is reduced, and the nitrogen can flush out the crystals formed at the port of the salt-forming agent pipeline 4, so as to avoid pipeline blockage and pressure holding; a preparation kettle bottom valve 9 is arranged at the bottom of the preparation kettle 1, the mixed solution after the salt-forming reaction is completed is output, and enters the next process.

[0023] Preferably, a combustible gas detector 10 is provided on the top of the preparation kettle 1 to detect the concentration of the combustible gas inside the preparation kettle 1, and then help determine the amount of nitrogen introduced, so that the combustible gas inside the preparation kettle 1 is always kept below the explosion limit to prevent safety hazards.

[0024] Preferably, the top of the preparation kettle 1 is connected to the exhaust gas treatment device 11 via the exhaust gas pipeline 3, and the exhaust gas treatment device 11 is connected to the gas storage tank 12 via a pipeline. The nitrogen and combustible gas in the preparation kettle 1 are transported to the exhaust gas treatment device 11 via the exhaust gas pipeline 3, and the combustible gas is absorbed and separated from the nitrogen. The separated nitrogen enters the gas storage tank 12 and is then used to replenish gas into the preparation kettle 1, thereby recycling the nitrogen.

[0025] Preferably, a stirring device 2 is provided inside the preparation kettle 1, and the reaction is stirred while the salt-forming agent is added, thereby accelerating the reaction speed and improving the reaction uniformity. At the same time, it can also prevent the crystals after salt formation from gathering near the port of the salt-forming agent pipeline 4 and clogging the pipeline.

[0026] Preferably, a jacket 8 is provided outside the preparation kettle 1, and the jacket 8 is controlled according to the temperature inside the preparation kettle 1 so that the device is always maintained at a suitable temperature for the reaction.

[0027] Further preferably, a water outlet valve 15 is provided at the bottom of the jacket 8, the water outlet valve 15 is connected to a heat exchange tank 16, and the heat exchange tank 16 is connected to a water inlet valve 14 at the top of the jacket 8 through a pipeline, so that water is circulated into the jacket 8 to control the temperature in the preparation kettle 1.

[0028] Preferably, the port of the salt-forming agent pipeline 4 is flush with the port of the nitrogen supplement pipeline 6, and both ports are inclined at 45°, which ensures that the crystallization after salt formation does not block the pipeline and can also increase the reaction area between the liquid salt-forming agent and the glyphosate original drug.

Claims

1. A glyphosate salt-forming reaction device, characterized in that: The glyphosate raw material storage tank (18) is connected to the preparation kettle (1) via a liquid inlet (17); a salt-forming agent pipeline (4) is provided in the preparation kettle (1); the salt-forming agent pipeline (4) is connected to the salt-forming agent storage tank (13) via a salt-forming agent regulating valve (5); a nitrogen replenishing pipeline (6) is provided in the salt-forming agent pipeline (4); the nitrogen replenishing pipeline (6) is connected to the gas storage tank (12) via a nitrogen replenishing regulating valve (7); and a preparation kettle bottom valve (9) is provided at the bottom of the preparation kettle (1).

2. A glyphosate salt-forming reaction device according to claim 1, characterized in that: A combustible gas detector (10) is provided on the top of the preparation kettle (1).

3. A glyphosate salt-forming reaction device according to claim 1, characterized in that: The top of the preparation kettle (1) is connected to the tail gas treatment device (11) via a tail gas pipeline (3), and the tail gas treatment device (11) is connected to the gas storage tank (12) via a pipeline.

4. A glyphosate salt-forming reaction device according to claim 1, characterized in that: The preparation kettle (1) is provided with a stirring device (2) inside.

5. A glyphosate salt-forming reaction device according to claim 1, characterized in that: The preparation kettle (1) is provided with a jacket (8) outside.

6. A glyphosate salt-forming reaction device according to claim 5, characterized in that: A water outlet valve (15) is provided at the bottom of the jacket (8), the water outlet valve (15) is connected to a heat exchange storage tank (16), and the heat exchange storage tank (16) is connected to a water inlet valve (14) at the top of the jacket (8) via a pipeline.

7. A glyphosate salt-forming reaction device according to claim 1, characterized in that: The port of the salt-forming agent pipeline (4) is flush with the port of the nitrogen supplement pipeline (6).

Images