A reactor for precision production of glyphosate salt

Abstract

This utility model discloses a reactor for the precise production of glyphosate, comprising a body, a screw, a feeding system, a reaction gas system, a power system, a baffle plate, a cooling water system, a receiving hopper, and a controller. The feeding system includes a hopper, a fixed support, a first solenoid valve, a weighing hopper, a second solenoid valve, a weighing device, a feed pipe, and a distributor. The weighing hopper precisely proportions the raw materials and additives, which are then evenly distributed by the distributor. A twin-screw compressor thoroughly stirs and mixes the raw materials and additives before introducing ammonia gas to participate in the reaction and generate glyphosate. This application solves the problem that the inability to precisely control the material quantity affects product purity, while also offering a simple process that allows for continuous operation.

Description

Technical Field

[0001] This utility model relates to the technical field of herbicide processing equipment, specifically a reactor for the precise production of glyphosate. Background Technology

[0002] Glyphosate is an organophosphorus herbicide formed by combining glyphosate with ammonium ions. As a widely used herbicide, glyphosate ammonium salt plays a crucial role in agriculture due to its strong weed-controlling ability and wide applicability, making it an indispensable tool for farmers and gardening enthusiasts.

[0003] For example, Chinese patent CN119431440A, published on February 14, 2025, discloses a continuous preparation method for glyphosate ammonium salt, including the following steps: S1, adding glyphosate ammonium salt solution to a mixing tank, then adding glyphosate technical powder and aqueous solution, stirring and mixing evenly to form a slurry containing glyphosate solids; S2, simultaneously injecting the slurry containing glyphosate solids and ammonia gas into a microchannel reactor to react and obtain material A; S3, diverting material A into a mixing tank and a receiving tank in two streams, with the mass ratio of material A flowing into the mixing tank to material A flowing into the receiving tank being 2-4:1; S4, adding methanol to the receiving tank and stirring to obtain crystals; S5, mixing the glyphosate ammonium salt particles obtained by centrifuging the crystals with an additive to obtain a semi-finished product; S6, heating and drying the semi-finished product to obtain glyphosate ammonium salt. The continuous preparation method for glyphosate ammonium salt provided by this invention can fully utilize raw materials, improve reaction conversion rate and production efficiency, and reduce costs.

[0004] As can be seen from the above patents, the method for preparing glyphosate ammonium salt requires stirring in a batching tank and a receiving tank, followed by centrifugal heating and drying to obtain glyphosate ammonium salt. This process is complex, and the inability to precisely control the material quantity affects product purity. Therefore, this invention provides a reactor for the precise production of glyphosate to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a reactor for the precise production of glyphosate.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A reactor for precise production of glyphosate, comprising a body;

[0008] Two screws are used to fully stir, mix, react, and degas the raw materials and additives. The screws are hollow and are located inside the machine body. The two screws are tightly meshed and pass through and are rotatably connected to the left and right ends of the machine body, respectively, and then extend to the left and right.

[0009] Two feeding systems are provided, which are respectively used to add raw materials and additives into the machine body. The feeding systems are located at the left end of the top of the machine body and are arranged parallel to the screw in the direction perpendicular to it.

[0010] A reaction gas system is provided for introducing ammonia gas into the machine body and discharging reaction exhaust gas from the machine body. The reaction gas system is located at the middle and right end of the top of the machine body. The reaction gas system includes an inlet and an outlet, which are arranged sequentially from left to right and both penetrate the top of the machine body at the bottom. The inlet and outlet are respectively fixedly connected to another ammonia gas system and an exhaust gas collection system through pipes.

[0011] The feeding system includes, from top to bottom, a feeding hopper, a fixed support, a first solenoid valve, a weighing hopper, a second solenoid valve, a weighing device, a feeding pipe, and a material distributor. The fixed support is mounted above the top of the machine body. The first and second solenoid valves and the weighing device are respectively located at the bottom of the feeding hopper and the weighing hopper. The fixed support and the weighing hopper are both mounted above the top of the machine body. The bottom of the weighing hopper extends downward through the top of the machine body and the feeding pipe and the material distributor are arranged in sequence.

[0012] Preferably, a power system is provided on the left side of the machine body. The power system is used to provide power to the screw. The power system includes a motor and gears. The output end of the motor is fixedly connected to the gears through a coupling. The external gears of the gears are respectively meshed with the external gears of the screw.

[0013] Preferably, a partition is fixedly installed in the middle of the body, the partition is located at the left end of the air inlet, and the bottom of the partition is close to the screw.

[0014] Preferably, it also includes a cooling water system, which includes a cooling system, a left sleeve and a right sleeve. The cooling system is fixedly connected to the left sleeve and the right sleeve through pipes, respectively. The screw is rotatably connected inside the left sleeve and the right sleeve, respectively. The left sleeve and the right sleeve are fixedly connected to the left end face and the right end face of the machine body, respectively.

[0015] Preferably, a receiving box is fixedly connected to the bottom right end of the machine body, and a controller is provided on the left end of the machine body. The controller is electrically connected to the first solenoid valve, the second solenoid valve, the weighing device, and the motor.

[0016] Preferably, the machine body is fixed and supported by a plurality of support frames, which are fixedly connected to the bottom of the machine body.

[0017] The beneficial effects of this utility model are:

[0018] After the raw materials and additives are precisely proportioned by a weighing hopper, they are then evenly distributed by a distributor, and a twin-screw extruder is used to thoroughly stir and mix the raw materials and additives. Ammonia gas is then introduced to participate in the reaction and generate glyphosate. This application solves the problem that the inability to accurately control the material quantity affects product purity, while also offering a simple process that can be operated continuously. Attached Figure Description

[0019] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0021] Figure 1 This is a front view structural diagram of the present utility model;

[0022] Figure 2 This is a top view of the structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the feeding system of this utility model;

[0024] Figure 4 This is a schematic diagram of the connection structure between the power system and the screw of this utility model;

[0025] Figure 5 This is a schematic diagram of the partition structure of this utility model;

[0026] As shown in the figure:

[0027] 1. Machine body; 101. Support frame; 2. Screw; 3. Feeding system; 31. Discharge hopper; 32. Fixed bracket; 33. First solenoid valve; 34. Weighing hopper; 35. Second solenoid valve; 36. Weighing device; 37. Feed pipe; 38. Distributor; 4. Reaction gas system; 41. Air inlet; 42. Air outlet; 5. Power system; 51. Motor; 52. Gear; 6. Partition plate; 7. Cooling water system; 71. Cooling system; 72. Left sleeve; 73. Right sleeve; 8. Receiving box; 9. Controller. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0030] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0031] It should be noted that similar labels and letters are likely to represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] Reference Figure 1-5 The present invention discloses a reactor for the precise production of glyphosate, comprising a body 1, a screw 2, a feeding system 3, a reaction gas system 4, a power system 5, a baffle 6, a cooling water system 7, a receiving box 8, and a controller 9.

[0035] Two hollow screws 2, tightly meshed inside the machine body 1, are used to thoroughly stir, mix, react, and vent the raw materials and additives. The screws 2 pass through and are rotatably connected to the left and right ends of the machine body 1, respectively, and extend to the left and right. Two feeding systems 3, located at the top left end of the machine body 1 and arranged parallel to the screws 2 in a direction perpendicular to them, are used to add the raw materials and additives into the machine body 1. The feeding system 3 includes, from top to bottom, a feeding hopper 31, a fixed bracket 32, a first solenoid valve 33, a weighing hopper 34, a second solenoid valve 35, a weighing device 36, a feeding pipe 37, and a distributor. 38. The fixed support 32 for fixing the feeding hopper 31 and the weighing hopper 34 for accurately weighing the raw materials and additives are both mounted on the top of the machine body 1. The first solenoid valve 33 and the second solenoid valve 35, which are used to open and close the feeding hopper 31 and the weighing hopper 34 respectively, and the weighing device 36 are all set at the bottom of the feeding hopper 31 and the weighing hopper 34 respectively. The bottom of the weighing hopper 34 passes through the top of the machine body 1 and is connected by a feed pipe 37 and a distributor 38. The feed pipe 37 is used to feed materials into the machine body 1, and the distributor 38 is used to evenly distribute and disperse the raw materials and additives respectively.

[0036] The reaction gas system 4, located at the top center and right end of the body 1, is used to introduce ammonia into the body 1 for chemical reaction and to exhaust the reaction exhaust gas from the body 1, respectively. The reaction gas system 4 includes an air inlet 41 and an air outlet 42 arranged sequentially from left to right and both penetrating the top of the body 1 at the bottom. The air inlet 41 and the air outlet 42 are respectively fixedly connected to another ammonia system and an exhaust gas collection system through pipes. Ammonia provided by the ammonia system enters the body 1 through the air inlet 41 through the pipe to participate in the chemical reaction. Ammonia that does not participate in the reaction or does not react completely can be discharged from the body 1 through the air outlet 42 and enter the exhaust gas collection system through the pipe for treatment.

[0037] In an optional embodiment, a power system 5 located on the left side of the body 1 is used to provide power to the screw 2 to rotate the screw 2. The power system 5 includes a motor 51 and a gear 52. The output end of the motor 51 is fixedly connected to the gear 52 through a coupling. The external gear of the gear 52 is meshed with the external gear of the screw 2. The output end of the rotating motor 51 drives the gear 52 to rotate through the coupling. Then, the external gear of the gear 52 drives the external gear of the screw 2 to rotate, thereby driving the screw 2 to rotate.

[0038] In an optional embodiment, a partition 6 fixedly installed in the middle of the machine body 1 is used to divide the machine body 1 into a mixing zone and a reaction zone. The partition 6 is located at the left end of the air inlet 41 and can isolate ammonia gas in the reaction zone. The bottom of the partition 6 is close to the screw 2 to ensure that ammonia gas can enter the screw 2 to participate in the chemical reaction.

[0039] In an optional embodiment, the cooling water system 7 for cooling the machine body 1 includes a cooling system 71, a left sleeve 72, and a right sleeve 73. The screw 2 is rotatably connected to the left sleeve 72 and the right sleeve 73, respectively. The left sleeve 72 and the right sleeve 73 are fixedly connected to the cooling system 71 through pipes and are fixed to the left end face and the right end face of the machine body 1, respectively. Cooling water supplied by the cooling system 71 flows through the pipes through the left sleeve 72 into the screw 2. Since the chemical reaction is an exothermic reaction, the cooling water can cool the raw materials and additives in the reaction process, and then flow out of the right sleeve 73 and enter the cooling system 71 through the pipes for heat exchange and continued cooling, forming a cooling water circulation system.

[0040] In an optional embodiment, a receiving box 8 fixedly connected to the bottom right end of the machine body 1 is used to collect reaction products, and a controller 9 set on the left end of the machine body 1 is used to control the feeding system 3 and the power system 5. The controller 9 is electrically connected to and controls the first solenoid valve 33, the second solenoid valve 35, the weighing device 36, and the motor 51, respectively.

[0041] In an optional embodiment, the body 1 is fixed and supported by a plurality of support frames 101, which are fixedly connected to the bottom of the body 1.

[0042] The working principle and usage process of this utility model are as follows:

[0043] Controller 9 controls the opening of the first solenoid valve 33 and the weighing device 36, and the closing of the second solenoid valve 35. Raw materials and additives enter the weighing hopper 34 from the feed hopper 31 for weighing. The weighing device 36 provides real-time weight feedback to controller 9. When the weights of the raw materials and additives reach the required precise proportions, controller 9 closes the first solenoid valve 33 and then opens the second solenoid valve 35. The precisely proportioned raw materials and additives enter the distributor 38 through the feed pipe 37, where they are evenly distributed and dispersed before entering the screw 2. Controller 9 activates motor 51, which drives gear 52, which in turn drives the screw 2 to rotate. The tightly meshed hollow twin screws 2... The raw materials and additives are thoroughly stirred and mixed, and the mixture is propelled. Cooling system 71 provides circulating cooling water that flows through pipes through left sleeve 72 into screw 2 to cool the mixture during the reaction process. The water then flows out through right sleeve 73 and back into cooling system 71 for heat exchange before further cooling. The mixture reaches inlet 41, where ammonia gas is supplied by the ammonia system and enters the machine body 1 through pipes to react with the mixture. Unreacted or incompletely reacted ammonia gas is discharged from the machine body 1 through outlet 42 and enters the exhaust gas collection system for treatment. The product after the reaction is complete falls into collection box 8 for collection. Repeating these steps forms a continuous operation.

[0044] Of course, the embodiments described in this specific implementation are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A reactor for precise production of glyphosate, comprising a body (1); Two screws (2) are used to fully stir, mix, react, and vent the raw materials and additives; the screws (2) are hollow screws and are located inside the machine body (1); the two screws (2) are tightly meshed; the screws (2) pass through and are rotatably connected to the left and right ends of the machine body (1) respectively and then extend to the left and right respectively. Two feeding systems (3) are used to add raw materials and additives into the machine body (1), respectively. The feeding systems (3) are located at the left end of the top of the machine body (1) and are arranged parallel to the screw (2) in the direction perpendicular to it. A reaction gas system (4) is used to introduce ammonia into the body (1) and to discharge reaction tail gas from the body (1). The reaction gas system (4) is located at the middle and right end of the top of the body (1). The reaction gas system (4) includes an inlet (41) and an outlet (42). The inlet (41) and the outlet (42) are arranged sequentially from left to right and their bottoms penetrate the top of the body (1). The inlet (41) and the outlet (42) are respectively fixedly connected to another ammonia system and a tail gas collection system through pipes. Its features are: The feeding system (3) includes a feeding hopper (31), a fixed bracket (32), a first solenoid valve (33), a weighing hopper (34), a second solenoid valve (35), a weighing device (36), a feeding pipe (37), and a material distributor (38) arranged sequentially from top to bottom. The fixed bracket (32) is mounted on the top of the machine body (1). The first solenoid valve (33), the second solenoid valve (35), and the weighing device (36) are respectively located at the bottom of the feeding hopper (31) and the weighing hopper (34). The fixed bracket (32) and the weighing hopper (34) are both mounted on the top of the machine body (1). The bottom of the weighing hopper (34) extends downward through the top of the machine body (1) and is sequentially connected to the feeding pipe (37) and the material distributor (38).

2. The reactor for precise production of glyphosate according to claim 1, characterized in that: A power system (5) is provided on the left side of the machine body (1). The power system (5) is used to provide power to the screw (2). The power system (5) includes a motor (51) and a gear (52). The output end of the motor (51) is fixedly connected to the gear (52) through a coupling. The external gear of the gear (52) meshes with the external gear of the screw (2).

3. The reactor for precise production of glyphosate according to claim 1, characterized in that: A partition (6) is fixedly installed in the middle inside the body (1). The partition (6) is located at the left end of the air inlet (41), and the bottom of the partition (6) is close to the screw (2).

4. The reactor for precise production of glyphosate according to claim 1, characterized in that: It also includes a cooling water system (7), which includes a cooling system (71), a left sleeve (72) and a right sleeve (73). The cooling system (71) is fixedly connected to the left sleeve (72) and the right sleeve (73) through pipes. The screw (2) is rotatably connected inside the left sleeve (72) and the right sleeve (73). The left sleeve (72) and the right sleeve (73) are fixedly connected to the left end face and the right end face of the machine body (1) respectively.

5. The reactor for precise production of glyphosate according to claim 2, characterized in that: The receiving box (8) is fixedly connected to the bottom right end of the machine body (1), and a controller (9) is set on the left end of the machine body (1). The controller (9) is electrically connected to the first solenoid valve (33), the second solenoid valve (35), the weighing device (36), and the motor (51).

6. The reactor for precise production of glyphosate according to claim 1, characterized in that: The body (1) is fixed and supported by a number of support frames (101), which are fixedly connected to the bottom of the body (1).

Images