Novel process and device for producing dichlorphenoxyacetic acid
Through the combined structure of internal mixing cylinder reaction and vacuum dehydration, the problems of environmental pollution and high energy consumption in dichlorophenoxyacetic acid production are solved, stable transportation and vacuum dehydration are achieved, and production energy consumption and dust pollution are reduced.
Patent Information
- Application Number
- CN202510028982.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2025-04-15
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing dichlorophenoxyacetic acid production process requires a large amount of process water and steam drying, resulting in environmental pollution and high energy consumption.
The inner mixing cylinder reaction is used to generate dichlorophenoxyacetate sodium salt, and the neutralization reaction heat is used to perform stand-alone delamination and vacuum dehydration to avoid the drying process. The combination of the solid frame, the inner mixing cylinder, the synchronous cylinder and the dehydration outer cylinder is achieved with a combination of the solidification frame, the inner mixing cylinder, the synchronous cylinder and the dehydration outer cylinder.
It reduces the use of washing process water, reduces production energy consumption, and solves the problem of dust pollution during the drying process, achieving an environmentally friendly and efficient production process.
Smart Images
Figure CN119819232A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of dichlorophenoxyacetic acid production devices, in particular to a new process and device for producing dichlorophenoxyacetic acid. Background Art
[0002] Dichlorophenoxyacetic acid is a general term for a class of organic compounds, among which the most famous is 2,4-dichlorophenoxyacetic acid, which is a broad-spectrum selective herbicide. In the existing process, 2.4-dichlorophenoxyacetic acid is produced by reacting 2.4-dichlorophenol, strong sodium oxide and chloroacetic acid. 2.4-dichlorophenoxyacetic acid sodium salt, 2.4-dichlorophenoxyacetic acid sodium salt is slurried with water to the reactor and the temperature is raised to 90°C, hydrochloric acid is added, and the reaction generates 2.4-dichlorophenoxyacetic acid, which is then crystallized by cooling, filtered, and washed. The sodium chloride entrained in the 2.4-dichlorophenoxyacetic acid wet powder is packaged in ton bags and transported to a drying system for drying to obtain 2.4-dichlorophenoxyacetic acid dry powder. In order to facilitate the production and processing of 2.4-dichlorophenoxyacetic acid, a production device is required.
[0003] As far as the current traditional production process and equipment are concerned, 2,4-dichlorophenoxyethyl requires a large amount of process water during the production and washing process, and consumes steam during drying, which generates a large amount of dust during the drying and packaging process, causing environmental pollution. Summary of the invention
[0004] The disclosed embodiment relates to a novel process and device for producing dichlorophenoxyacetic acid. The process comprises the following steps: reacting 2.4-dichlorophenol, sodium oxide and chloroacetic acid in an inner mixing drum (203) to produce 2.4-dichlorophenoxyacetic acid sodium salt; reacting hydrochloric acid with 2.4-dichlorophenoxyacetic acid sodium salt to generate 2.4-dichlorophenoxyacetic acid; utilizing the heat of neutralization reaction to raise the temperature to 100-110° C.; when 2.4-dichlorophenoxyacetic acid contains a trace amount of water, the freezing point will decrease; and by standing and stratifying, the lower layer of 2.4-dichlorophenoxyacetic acid is stratified to an inner dehydrating drum; after vacuum dehydration, the lower layer of 2.4-dichlorophenoxyacetic acid is transported to a solid slicer through a pipeline; the 2.4-dichlorophenoxyacetic acid is cooled and sliced to obtain a flaky solid product of 2.4-dichlorophenoxyacetic acid. In the production process, washing process water is not generated and drying is not required, thereby reducing the energy consumption of 2.4-dichlorophenoxyacetic acid production and solving the problem of environmental pollution caused by dust generated during the drying process.
[0005] In a first aspect of the present disclosure, a new process for producing dichlorophenoxyacetic acid and a device thereof are provided, which specifically include: a fixing part; the fixing part includes a fixed outer frame and a fixed frame; the fixed frame is configured as a U-shaped structure, a rectangular protrusion is provided on the outer wall of the fixed frame, a telescopic cylinder is provided inside the fixed frame, and two groups of solid frames are provided, and the two groups of solid frames are respectively fixed inside the fixed outer frame; a neutralization part is provided inside the fixing part, and the neutralization part includes a neutralization cylinder, an inner mixing cylinder, a neutralization rod and a neutralization stirring frame; the neutralization cylinder is fixed inside the fixed outer frame by screws; the inner mixing cylinder is configured as a cylindrical structure, an annular protrusion is provided on the outer wall of the inner mixing cylinder, stirring blades are fixedly connected to the inner wall of the inner mixing cylinder at equal distances, and the inner mixing cylinder is rotatably connected to the inside of the neutralization cylinder; the neutralization stirring frame is configured as a cylindrical structure, an annular protrusion is provided on the outer wall of the inner mixing cylinder, stirring blades are equidistantly fixed on the inner wall of the inner mixing cylinder ... The cylindrical structure has a stirring blade on the outside of the neutralizing stirring frame, a hexagonal plug rod on the bottom of the neutralizing stirring frame, and the neutralizing stirring frame is fixed to the inside of the neutralizing rod by screws; a middle leakage part is provided inside the fixed part, and the middle leakage part is arranged below the neutralizing part, and the middle leakage part includes a driving frame, a synchronous cylinder, and a blocking cylinder; the driving frame is slidably connected to the inside of the fixed outer frame, the driving frame is connected to the telescopic cylinder in the fixed frame, the synchronous cylinder is rotatably connected to the inside of the neutralizing cylinder, the synchronous cylinder and the inner mixing cylinder are connected by screws, and the neutralizing stirring frame is inserted in the synchronous cylinder; the synchronous cylinder is set as a cylindrical structure, an annular protrusion is provided on the outer wall of the synchronous cylinder, a rectangular groove is provided on the outer wall of the synchronous cylinder, a disc-shaped structure is provided inside the synchronous cylinder, and the disc-shaped structure of the synchronous cylinder is equidistantly opened A fan-shaped through hole is provided, a cylindrical structure is opened at the center position of the disc-shaped structure of the synchronous cylinder, a hexagonal column-shaped through hole is opened on the cylindrical structure of the synchronous cylinder, and the synchronous cylinder is arranged inside the driving frame; the blocking cylinder is arranged as a cylindrical structure, a cylindrical groove is provided inside the blocking cylinder, and fan-shaped blocks are equidistantly provided on the top of the blocking cylinder, and a threaded groove is provided on the outer wall of the blocking cylinder, and the blocking cylinder is slidably connected to the inside of the synchronous cylinder; a dehydration part is provided inside the fixed part, and the dehydration part is arranged below the middle leakage part, and the dehydration part includes a dehydration outer cylinder, a temperature control frame, and an inner dehydration cylinder; the dehydration outer cylinder is fixed to the inside of the fixed outer frame by screws, and the top of the dehydration outer cylinder is rotatably connected with the synchronous cylinder, and the inner dehydration cylinder is sleeved on the bottom of the blocking cylinder; the inner dehydration cylinder is arranged as a cylindrical structure, and the outer of the inner dehydration cylinder is provided with a synchronous cylinder, and the inner dehydration cylinder is sleeved on the bottom of the blocking cylinder; the inner dehydration cylinder is arranged as a cylindrical structure, and the outer The wall is provided with an annular protrusion, the outer wall of the inner stripping cylinder is provided with a threaded through hole, the inner stripping cylinder is fixed inside the dehydration outer cylinder by screws, and the inner stripping cylinder is arranged inside the temperature control rack; 2.4-dichlorophenol, strong sodium oxide and chloroacetic acid are reacted in the inner mixing cylinder to produce 2.4-dichlorophenoxyacetic acid sodium salt, and then hydrochloric acid and 2.4-dichlorophenoxyacetic acid sodium salt are reacted to generate 2.4-dichlorophenoxyacetic acid, and the temperature is raised to 100-110 DEG C by using the heat of neutralization reaction. When 2.4-dichlorophenoxyacetic acid contains a trace amount of water, the freezing point will decrease, and the lower layer of 2.4-dichlorophenoxyacetic acid is layered to the inner stripping cylinder through static stratification, and after vacuum dehydration, the lower layer of 2.4-dichlorophenoxyacetic acid is transported to the 2.4-dichlorophenoxyacetic acid solid slicer through a pipeline, and the 2.4-dichlorophenoxyacetic acid is cooled and sliced to obtain a flaky solid finished product of 2.4-dichlorophenoxyacetic acid.
[0006] At least in some embodiments, the fixed part also includes a packaging assembly; the fixed outer frame is provided with a rectangular frame-like structure, a rectangular protrusion is provided on the inner wall of the fixed outer frame, and a T-shaped protrusion is provided on the inner wall of the fixed outer frame; the packaging assembly is provided with a conveying structure, a packaging structure is provided on the packaging assembly, a cylindrical rod is provided on the top of the packaging assembly, and the packaging assembly is fixed to the bottom of the fixed outer frame.
[0007] At least in some embodiments, the neutralization part also includes an upper cover; the neutralization cylinder is configured as a cylindrical structure, a connecting block is provided on the outer wall of the neutralization cylinder, and an annular groove is provided on the inner wall of the neutralization cylinder; the upper cover is configured as a cover-like structure, a delivery port is provided on the top of the upper cover, a control motor is provided on the top of the upper cover, and the upper cover is fixed to the top of the neutralization cylinder by screws.
[0008] At least in some embodiments, the neutralizing rod is configured as a cylindrical rod-shaped structure, the neutralizing rod is rotatably connected to the interior of the upper cover, and the neutralizing rod is connected to a control motor on the upper cover.
[0009] At least in some embodiments, the neutralization part further includes a spray pipe; the spray pipe is configured as a cylindrical tubular structure, a spray head is provided on the spray pipe, a thread is provided on the spray pipe, and the spray pipe is threadedly connected to the inner side of the upper cover.
[0010] At least in some embodiments, the driving frame is configured as a square plate structure, a circular through hole is provided at the center position of the driving frame, the circular through hole of the driving frame is connected to a circular ring-shaped groove, springs are provided on the upper and lower sides of the driving frame respectively, a rectangular protrusion is provided on the outer wall of the driving frame, and a T-shaped groove is provided on the outer wall of the driving frame.
[0011] At least in some embodiments, the middle leakage part also includes a torsion ring; the torsion ring is configured as an annular structure, and cylindrical grooves are equidistantly opened on the inner wall of the torsion ring, and the torsion ring is rotatably connected in the annular groove of the driving frame.
[0012] At least in some embodiments, the middle leakage part also includes a synchronization rod; the synchronization rod is configured as a cylindrical rod-shaped structure, a cylindrical block is provided on the synchronization rod, a threaded rod is provided on the synchronization rod, the synchronization rod is slidably connected in the torsion ring, the synchronization rod is threadedly connected to the outside of the blocking cylinder, and the synchronization rod is slidably connected to the inside of the synchronization cylinder.
[0013] At least in some embodiments, the dehydration outer cylinder is configured as a cylindrical structure, a circular protrusion is provided inside the dehydration outer cylinder, a connecting block is provided on the outer wall of the dehydration outer cylinder, and a circular through hole is provided on the outer wall of the dehydration outer cylinder; a heating component is provided on the temperature control rack, a refrigeration component is provided on the temperature control rack, and the temperature control rack is fixed inside the dehydration outer cylinder.
[0014] At least in some embodiments, the dehydration part also includes an outer row of connecting pipes and a slicing assembly; the outer row of connecting pipes is configured as a cylindrical tubular structure, and a threaded connector is provided on the outer row of connecting pipes, which is fixed inside the dehydration outer cylinder, and the outer row of connecting pipes is threadedly connected to the inside of the inner dehydration cylinder; a blocking assembly is provided inside the slicing assembly, and a cutting assembly is provided inside the slicing assembly, and the slicing assembly is fixed at the bottom of the inner dehydration cylinder.
[0015] The new process and device for producing dichlorophenoxyacetic acid provided by the present invention have the following beneficial effects:
[0016] The present invention is provided with a fixed frame, and by fixing the fixed frame inside the fixed outer frame, the telescopic cylinder is conveniently fixed while maintaining stability, so as to facilitate the control of the driving frame for lifting and lowering adjustment, to facilitate the control of the relative state of the blocking cylinder inside the synchronous cylinder, and to facilitate the transportation and processing of the slurry.
[0017] In addition, an inner mixing drum and a neutralization rack are provided. The inner mixing drum and the synchronous drum are connected by screws, and the neutralization rack is inserted into the synchronous drum. It is convenient to rotate the inner mixing drum, the neutralization rack and the synchronous drum under the drive of the control motor and the neutralization rod, so that the internal raw materials can be condensed, beaten and neutralized during the rotation process, so as to facilitate the processing of 2,4-dichlorophenoxyacetic acid.
[0018] In addition, a synchronous cylinder and a blocking cylinder are provided. The synchronous cylinder is rotatably connected between the neutralization cylinder and the dehydration outer cylinder so that it cooperates with the blocking cylinder to connect the two. The raw materials can directly flow down into the dehydration outer cylinder after condensation, pulping and neutralization, making it convenient to transport and process the raw materials.
[0019] In addition, a temperature control rack and a slicing assembly are provided. By arranging the temperature control rack outside the inner stripping cylinder, the internal temperature of the inner stripping cylinder can be conveniently controlled by the temperature control rack, so as to facilitate the reaction treatment of the internal 2,4-dichlorophenoxyacetic acid. By fixing the slicing assembly at the bottom of the inner stripping cylinder, it is convenient to maintain the sealing of the inner stripping cylinder while maintaining stability, and at the same time, the 2.4-dichlorophenoxyacetic acid can be cut during the transportation process. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.
[0021] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.
[0022] In the attached picture:
[0023] Figure 1 A schematic diagram of a three-dimensional assembly structure according to an embodiment of the present invention is shown;
[0024] Figure 2 A schematic diagram of a bottom-up structure of a three-dimensional assembly according to an embodiment of the present invention is shown;
[0025] Figure 3 A schematic diagram showing a partial cutaway structure according to an embodiment of the present invention is shown;
[0026] Figure 4 The embodiment according to the present invention is shown. Figure 3 The schematic diagram of the enlarged structure of part A is shown;
[0027] Figure 5 The embodiment according to the present invention is shown. Figure 3 The schematic diagram of the enlarged structure of part B is shown;
[0028] Figure 6 A schematic diagram showing a decomposition structure according to an embodiment of the present invention is shown;
[0029] Figure 7 A schematic diagram showing an exploded bottom-up structure according to an embodiment of the present invention is shown;
[0030] Figure 8 A schematic diagram showing an assembly structure of a fixing portion according to an embodiment of the present invention is shown;
[0031] Fig. 9 A schematic diagram showing an assembly structure of a neutralization part according to an embodiment of the present invention is shown;
[0032] Fig.10 A schematic diagram showing a middle drain assembly structure according to an embodiment of the present invention is shown;
[0033] Fig.11 A schematic diagram showing an assembly structure of a dehydration unit according to an embodiment of the present invention is shown;
[0034] Fig.12 A schematic diagram of a partial cutaway structure in a conveying state according to an embodiment of the present invention is shown;
[0035] Fig.13 The embodiment according to the present invention is shown. Fig.12 Schematic diagram of the enlarged structure of part C.
[0036] Reference numerals list
[0037] 1. Fixed part; 101. Fixed outer frame; 102. Packing assembly; 103. Fixed frame;
[0038] 2. Neutralization part; 201. Neutralization cylinder; 202. Upper cover; 203. Inner mixing cylinder; 204. Neutralization rod; 205. Spraying pipe; 206. Neutralization stirring frame;
[0039] 3. Middle leakage part; 301. Driving frame; 302. Torsion ring; 303. Synchronous cylinder; 304. Blocking cylinder; 305. Synchronous rod;
[0040] 4. Dehydration section; 401. Dehydration outer cylinder; 402. Temperature control rack; 403. Inner dehydration cylinder; 404. External row connecting pipe; 405. Slicing assembly. DETAILED DESCRIPTION
[0041] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and examples.
[0042] Example 1: Please refer to Figures 1 to 13The present invention provides a new process and device for producing dichlorophenoxyacetic acid, comprising: a fixing part 1; the fixing part 1 comprises a fixing outer frame 101 and a fixing frame 103; the fixing frame 103 is set to a U-shaped structure, a rectangular protrusion is arranged on the outer wall of the fixing frame 103, a telescopic cylinder is arranged inside the fixing frame 103, and two groups of the fixing frames 103 are arranged in total, and the two groups of fixing frames 103 are respectively fixed inside the fixing outer frame 101; the fixing frame 103 is used to fix the telescopic cylinder to facilitate the control of the driving frame 301 to perform lifting and lowering adjustment; a neutralizing part 2 is arranged inside the fixing part 1, and the neutralizing part 2 comprises a neutralizing cylinder 201, an inner mixing cylinder 203, a neutralizing rod 204 and a neutralizing stirring frame 206; the neutralizing cylinder 201 is fixed to the fixing outer frame 101 by screws 1; the inner mixing drum 203 is set as a cylindrical structure, the outer wall of the inner mixing drum 203 is provided with annular protrusions, the inner wall of the inner mixing drum 203 is fixed with stirring blades at equal intervals, and the inner mixing drum 203 is rotatably connected to the inside of the neutralizing drum 201; the inner mixing drum 203 is used to rotate under the drive of the synchronous drum 303, so as to facilitate the neutralization and beating of the internal raw materials in cooperation with the neutralization stirring frame 206; the neutralization stirring frame 206 is set as a cylindrical structure, the outside of the neutralization stirring frame 206 is provided with stirring blades, the bottom of the neutralization stirring frame 206 is provided with a hexagonal prism-shaped plug rod, and the neutralization stirring frame 206 is fixed to the inside of the neutralization rod 204 by screws; the neutralization stirring frame 206 is used to cooperate with the inner mixing drum 203 to neutralize and beat the internal raw materials Processing; a middle leakage part 3 is provided inside the fixed part 1, and the middle leakage part 3 is arranged below the neutralization part 2, and the middle leakage part 3 includes a driving frame 301, a synchronous cylinder 303, and a blocking cylinder 304; the driving frame 301 is slidably connected to the inside of the fixed outer frame 101, the driving frame 301 is connected to the telescopic cylinder in the fixed frame 103, the synchronous cylinder 303 is rotatably connected to the inside of the neutralization cylinder 201, the synchronous cylinder 303 and the inner mixing cylinder 203 are connected by screws, and the neutralization stirring frame 206 is inserted into the synchronous cylinder 303; the synchronous cylinder 303 is set to a cylindrical structure, an annular protrusion is provided on the outer wall of the synchronous cylinder 303, a rectangular groove is provided on the outer wall of the synchronous cylinder 303, and a disc-shaped structure is provided inside the synchronous cylinder 303, The disc-shaped structure of the synchronous cylinder 303 is provided with fan-shaped through holes at equal intervals, the disc-shaped structure of the synchronous cylinder 303 is provided with a cylindrical structure at the center, the cylindrical structure of the synchronous cylinder 303 is provided with a hexagonal column-shaped through hole, and the synchronous cylinder 303 is arranged inside the driving frame 301; the synchronous cylinder 303 is used to cooperate with the blocking cylinder 304 to transport and process the raw materials; the blocking cylinder 304 is set as a cylindrical structure, the inside of the blocking cylinder 304 is provided with a cylindrical groove, the top of the blocking cylinder 304 is provided with fan-shaped blocks at equal intervals, the outer wall of the blocking cylinder 304 is provided with a threaded groove, and the blocking cylinder 304 is slidably connected to the inside of the synchronous cylinder 303; the blocking cylinder 304 is used to assist in the transportation and processing of the raw materials, and at the same time assist in maintaining the sealing of the device as a whole;A dehydration part 4 is provided inside the fixed part 1, and the dehydration part 4 is arranged below the middle leakage part 3, and the dehydration part 4 includes a dehydration outer cylinder 401, a temperature control frame 402, and an inner dehydration cylinder 403; the dehydration outer cylinder 401 is fixed to the inside of the fixed outer frame 101 by screws, the top of the dehydration outer cylinder 401 is rotatably connected with a synchronous cylinder 303, and the inner dehydration cylinder 403 is sleeved on the bottom of the blocking cylinder 304; the inner dehydration cylinder 403 is set as a cylindrical structure, the outer wall of the inner dehydration cylinder 403 is provided with an annular protrusion, the outer wall of the inner dehydration cylinder 403 is provided with a threaded through hole, the inner dehydration cylinder 403 is fixed to the inside of the dehydration outer cylinder 401 by screws, and the inner dehydration cylinder 403 is arranged inside the temperature control frame 402; the inner dehydration cylinder 403 is used to assist the loading and vacuum dehydration of the slurry; 2.4-dichlorophenol, strong sodium oxide and chloroacetic acid are reacted in the inner mixing drum 203 to produce 2.4-dichlorophenoxyacetic acid sodium salt, and then hydrochloric acid and 2.4-dichlorophenoxyacetic acid sodium salt are reacted to generate 2.4-dichlorophenoxyacetic acid. The temperature is raised to 100-110°C by the heat of the neutralization reaction. When 2.4-dichlorophenoxyacetic acid contains trace water, the freezing point will decrease. After standing and stratifying, the lower layer of 2.4-dichlorophenoxyacetic acid is stratified to the inner dehydration drum. After vacuum dehydration, it is transported to the 2.4-dichlorophenoxyacetic acid solid slicer through a pipeline, cooled and sliced to obtain a flaky solid finished product of 2.4-dichlorophenoxyacetic acid. ;
[0043] Embodiment 2: Based on Embodiment 1, Figure 8 As shown, the fixed part 1 also includes a packaging component 102; the fixed outer frame 101 is provided with a rectangular frame structure, a rectangular protrusion is provided on the inner wall of the fixed outer frame 101, and a T-shaped protrusion is provided on the inner wall of the fixed outer frame 101; the fixed outer frame 101 is used to assist in the installation and fixation of other structures of the device; the packaging component 102 is provided with a conveying structure, the packaging component 102 is provided with a packaging structure, a cylindrical rod is provided on the top of the packaging component 102, and the packaging component 102 is fixed to the bottom of the fixed outer frame 101; the packaging component 102 is used to transport and package the sliced 2.4-dichlorophenoxyacetic acid tablets.
[0044] In the embodiments of the present disclosure, Fig. 9As shown, the neutralization part 2 also includes an upper cover 202; the neutralization cylinder 201 is set as a cylindrical structure, a connecting block is provided on the outer wall of the neutralization cylinder 201, and an annular groove is provided on the inner wall of the neutralization cylinder 201; the neutralization cylinder 201 is used to assist in the installation and fixation of other structures of the neutralization part 2 to facilitate the overall stability of the neutralization part 2; the upper cover 202 is set as a cover structure, a delivery port is provided on the top of the upper cover 202, a control motor is provided on the top of the upper cover 202, and the upper cover 202 is fixed to the top of the neutralization cylinder 201 by screws; the upper cover 202 is used to seal the neutralization cylinder 201 to facilitate its for use; the neutralizing rod 204 is configured as a cylindrical rod-shaped structure, the neutralizing rod 204 is rotatably connected to the inside of the upper cover 202, and the neutralizing rod 204 is connected to the control motor on the upper cover 202; the neutralizing rod 204 is used to rotate under the drive of the control motor to assist in neutralizing and pulping the internal raw materials; the neutralizing part 2 also includes a spray pipe 205; the spray pipe 205 is configured as a cylindrical tubular structure, the spray pipe 205 is provided with a nozzle, the spray pipe 205 is provided with a thread, and the spray pipe 205 is threadedly connected to the inner side of the upper cover 202; the spray pipe 205 is used to add raw materials and additives to the inside of the device.
[0045] In the embodiments of the present disclosure, Fig.10 As shown, the driving frame 301 is set as a square plate structure, a circular through hole is provided at the center of the driving frame 301, the circular through hole of the driving frame 301 is connected with a circular ring-shaped groove, springs are respectively provided on the upper and lower sides of the driving frame 301, a rectangular protrusion is provided on the outer wall of the driving frame 301, and a T-shaped groove is provided on the outer wall of the driving frame 301; the driving frame 301 is used to perform lifting and lowering processing under the drive of the telescopic cylinder to control the relative state between the synchronous cylinder 303 and the blocking cylinder 304; the middle leakage part 3 also includes a torsion ring 302; the torsion ring 302 is set as a circular ring structure, and cylindrical grooves are equidistantly provided on the inner wall of the torsion ring 302 The torsion ring 302 is rotatably connected in the annular groove of the driving frame 301; the torsion ring 302 is used to assist the synchronous cylinder 303 in lifting and lowering adjustment without affecting its rotation; the middle leakage part 3 also includes a synchronization rod 305; the synchronization rod 305 is set to a cylindrical rod-shaped structure, the synchronization rod 305 is provided with a cylindrical block, the synchronization rod 305 is provided with a threaded rod, the synchronization rod 305 is slidably connected in the torsion ring 302, the synchronization rod 305 is threadedly connected to the outside of the blocking cylinder 304, and the synchronization rod 305 is slidably connected to the inside of the synchronization cylinder 303; the synchronization rod 305 is used to make the blocking cylinder 304 and the driving frame 301 perform synchronous lifting and lowering processing.
[0046] In the embodiments of the present disclosure, Fig.11As shown, the dehydration outer cylinder 401 is set as a cylindrical structure, the interior of the dehydration outer cylinder 401 is provided with an annular protrusion, the outer wall of the dehydration outer cylinder 401 is provided with a connecting block, and the outer wall of the dehydration outer cylinder 401 is provided with a circular through hole; the dehydration outer cylinder 401 is used to assist in the installation and fixation of other structures of the dehydration part 4, so as to facilitate the overall stability of the dehydration part 4 and facilitate its dehydration treatment; a heating component is provided on the temperature control frame 402, and a refrigeration component is provided on the temperature control frame 402, and the temperature control frame 402 is fixed inside the dehydration outer cylinder 401; the temperature control frame 402 is used to control the temperature inside the dehydration outer cylinder 401, so as to assist in the vacuum dehydration treatment of the slurry; the dehydration part 4 also includes an external row of connecting pipes 404 and a slicing component 405; the external row The connecting tube 404 is configured as a cylindrical tubular structure, and a threaded connector is provided on the outer row connecting tube 404. The outer row connecting tube 404 is fixed inside the dehydration outer cylinder 401, and the outer row connecting tube 404 is threadedly connected inside the inner dehydration cylinder 403; the outer row connecting tube 404 is used to assist in connecting the inner dehydration cylinder 403 with an external extraction device to create a vacuum environment inside the inner dehydration cylinder 403 to facilitate the dehydration process; a blocking component is provided inside the slicing component 405, and a cutting component is provided inside the slicing component 405, and the slicing component 405 is fixed at the bottom of the inner dehydration cylinder 403; the slicing component 405 is used to assist in maintaining the sealing of the inner dehydration cylinder 403, and at the same time, the 2.4-dichlorophenoxyacetic acid tablets are sliced through the internal cutting component.
[0047] Specific usage and function of this embodiment: In the present invention, when in use, 2.4-dichlorophenol, strong sodium oxide and chloroacetic acid are transported to the interior of the neutralization cylinder 201 through the delivery port on the upper cover 202 and the spray pipe 205, and the control motor is started to drive the neutralization stirring frame 206 to rotate through the neutralization rod 204, and at the same time, the synchronous cylinder 303 and the inner mixing cylinder 203 are driven to rotate through the hexagonal prism-shaped plug rod, so as to facilitate the condensation reaction of 2.4-dichlorophenol, strong sodium oxide and chloroacetic acid to generate 2.4-dichlorophenoxyacetic acid sodium salt, and then add water to the interior, and continuously stir the neutralization stirring frame 206 and the inner mixing cylinder 203, and beat it to form 2.4-dichlorophenoxyacetic acid sodium slurry, and add hydrochloric acid to the interior, so that the hydrochloric acid and the 2.4-dichlorophenoxyacetic acid sodium salt are reacted to generate 2.4-dichlorophenoxyacetic acid, and then the telescopic cylinder is started to make The control driving frame 301 is adjusted to be lifted and lowered, and at the same time, the blocking cylinder 304 is controlled to be lifted and lowered through the torsion ring 302 and the synchronization rod 305, and the blocking cylinder 304 is connected to the neutralization part 2 and the dehydration part 4 during the adjustment process, so that the 2.4-dichlorophenoxyacetic acid in the neutralization cylinder 201 flows down to the inner dehydration cylinder 403, and the internal temperature is adjusted to 100-110° C. by controlling the temperature control rack 402, and the outer discharge connecting pipe 404 is connected to the external extraction equipment, so that the interior of the inner dehydration cylinder 403 is in a vacuum state, and the 2.4-dichlorophenoxyacetic acid inside is vacuum dehydrated, and then the dehydrated 2.4-dichlorophenoxyacetic acid is leaked to the solid slicing component 405, and the temperature control rack 402 is cooperated to cool and slice the 2.4-dichlorophenoxyacetic acid, and the sliced 2.4-dichlorophenoxyacetic acid is leaked to the packaging component 102, so as to be transported and cooled.
[0048] In this article, there are a few points to note:
[0049] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.
[0050] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.
[0051] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.
Claims
1. A dichlorophenoxyacetic acid production device, comprising: The fixing part (1) is characterized in that the fixing part (1) comprises a fixing outer frame (101) and a fixing frame (103); the fixing frame (103) is arranged as a U-shaped structure, a rectangular protrusion is arranged on the outer wall of the fixing frame (103), a telescopic cylinder is arranged inside the fixing frame (103), and two groups of fixing frames (103) are arranged in total, and the two groups of fixing frames (103) are respectively fixed inside the fixing outer frame (101); a neutralizing part (2) is arranged inside the fixing part (1), and the neutralizing part (2) comprises a neutralizing cylinder (201), an inner mixing cylinder (203), a neutralizing rod (204) and a neutralizing stirring frame (206); the neutralizing cylinder (201) is fixed inside the fixing outer frame (101) by screws; the inner mixing cylinder (203 ... 03) is configured as a cylindrical structure, an annular protrusion is provided on the outer wall of the inner mixing drum (203), stirring blades are fixedly connected to the inner wall of the inner mixing drum (203) at equal intervals, and the inner mixing drum (203) is rotatably connected to the inside of the neutralizing drum (201); the neutralizing stirring frame (206) is configured as a cylindrical structure, stirring blades are provided on the outside of the neutralizing stirring frame (206), a hexagonal columnar plug rod is provided at the bottom of the neutralizing stirring frame (206), and the neutralizing stirring frame (206) is fixed to the inside of the neutralizing rod (204) by screws; a middle leakage part (3) is provided inside the fixing part (1), and the middle leakage part (3) is arranged below the neutralizing part (2), and the middle leakage part (3) includes a driving frame (301), a synchronous drum (303), a blocking drum (304), and a plurality of intermediate parts (301). ); the driving frame (301) is slidably connected to the inside of the fixed outer frame (101), the driving frame (301) is connected to the telescopic cylinder in the fixed frame (103), the synchronous cylinder (303) is rotatably connected to the inside of the neutralizing cylinder (201), the synchronous cylinder (303) and the inner mixing cylinder (203) are connected by screws, and the neutralizing stirring frame (206) is inserted into the synchronous cylinder (303); the synchronous cylinder (303) is set as a cylindrical structure, the outer wall of the synchronous cylinder (303) is provided with an annular protrusion, the outer wall of the synchronous cylinder (303) is provided with a rectangular groove, the interior of the synchronous cylinder (303) is provided with a disc-shaped structure, the disc-shaped structure of the synchronous cylinder (303) is provided with fan-shaped through holes at equal intervals, and the circular structure of the synchronous cylinder (303) is provided with a circular hole. A cylindrical structure is provided at the center of the disc-shaped structure, a hexagonal through hole is provided on the cylindrical structure of the synchronous cylinder (303), and the synchronous cylinder (303) is arranged inside the driving frame (301); the blocking cylinder (304) is arranged as a cylindrical structure, a cylindrical groove is provided inside the blocking cylinder (304), a fan-shaped block is equidistantly provided on the top of the blocking cylinder (304), a threaded groove is provided on the outer wall of the blocking cylinder (304), and the blocking cylinder (304) is slidably connected to the inside of the synchronous cylinder (303); a dehydration part (4) is provided inside the fixing part (1), and the dehydration part (4) is arranged below the middle leakage part (3), and the dehydration part (4) includes a dehydration outer cylinder (401), a temperature control frame (402), and an inner dehydration cylinder (403);The dehydration outer cylinder (401) is fixed to the inside of the fixed outer frame (101) by screws, the top of the dehydration outer cylinder (401) is rotatably connected with a synchronous cylinder (303), and the inner dehydration cylinder (403) is sleeved on the bottom of the blocking cylinder (304); the inner dehydration cylinder (403) is configured as a cylindrical structure, an annular protrusion is provided on the outer wall of the inner dehydration cylinder (403), a threaded through hole is provided on the outer wall of the inner dehydration cylinder (403), the inner dehydration cylinder (403) is fixed to the inside of the dehydration outer cylinder (401) by screws, and the inner dehydration cylinder (403) is arranged inside the temperature control frame (402); The novel process for producing dichlorophenoxyacetic acid comprises the following steps: reacting 2.4-dichlorophenol, strong sodium oxide and chloroacetic acid in an inner mixing drum (203) to produce 2.4-dichlorophenoxyacetic acid sodium salt, reacting hydrochloric acid with 2.4-dichlorophenoxyacetic acid sodium salt to generate 2.4-dichlorophenoxyacetic acid, using the heat of neutralization reaction to raise the temperature to 100-110°C, when 2.4-dichlorophenoxyacetic acid contains a trace amount of water, the freezing point will decrease, and the lower layer of 2.4-dichlorophenoxyacetic acid is layered to the inner dehydration drum by standing and dehydrating, and then transported to the 2.4-dichlorophenoxyacetic acid solid slicer through a pipeline, cooled and sliced to obtain a flaky solid finished product of 2.4-dichlorophenoxyacetic acid.
2. The dichlorophenoxyacetic acid production device according to claim 1, characterized in that: The fixed portion (1) further comprises a packaging component (102); the fixed outer frame (101) is provided with a rectangular frame structure, the inner wall of the fixed outer frame (101) is provided with a rectangular protrusion, and the inner wall of the fixed outer frame (101) is provided with a T-shaped protrusion; the packaging component (102) is provided with a conveying structure, the packaging component (102) is provided with a packaging structure, the top of the packaging component (102) is provided with a cylindrical rod, and the packaging component (102) is fixed to the bottom of the fixed outer frame (101).
3. The dichlorophenoxyacetic acid production device according to claim 1, characterized in that: The neutralization part (2) further comprises an upper cover (202); the neutralization cylinder (201) is configured as a cylindrical structure, a connecting block is provided on the outer wall of the neutralization cylinder (201), and an annular groove is provided on the inner wall of the neutralization cylinder (201); the upper cover (202) is configured as a cap-like structure, a delivery port is provided on the top of the upper cover (202), a control motor is provided on the top of the upper cover (202), and the upper cover (202) is fixed to the top of the neutralization cylinder (201) by screws.
4. The dichlorophenoxyacetic acid production device according to claim 3, characterized in that: The neutralizing rod (204) is configured as a cylindrical rod-shaped structure. The neutralizing rod (204) is rotatably connected to the interior of the upper cover (202). The neutralizing rod (204) is connected to a control motor on the upper cover (202).
5. The dichlorophenoxyacetic acid production device according to claim 4, characterized in that: The neutralization part (2) further comprises a spray pipe (205); the spray pipe (205) is configured as a cylindrical tubular structure, a spray head is provided on the spray pipe (205), a thread is provided on the spray pipe (205), and the spray pipe (205) is threadedly connected to the inner side of the upper cover (202).
6. The dichlorophenoxyacetic acid production device according to claim 1, characterized in that: The driving frame (301) is configured as a square plate-shaped structure, a circular through hole is provided at the center of the driving frame (301), the circular through hole of the driving frame (301) is connected to a circular ring-shaped groove, springs are provided on the upper and lower sides of the driving frame (301), a rectangular protrusion is provided on the outer wall of the driving frame (301), and a T-shaped groove is provided on the outer wall of the driving frame (301).
7. The dichlorophenoxyacetic acid production device according to claim 6, characterized in that: The central leakage part (3) further comprises a torsion ring (302); the torsion ring (302) is arranged as an annular structure, and cylindrical grooves are equidistantly provided on the inner wall of the torsion ring (302); the torsion ring (302) is rotatably connected in the annular groove of the driving frame (301).
8. The dichlorophenoxyacetic acid production device according to claim 7, characterized in that: The middle leakage part (3) also includes a synchronization rod (305); the synchronization rod (305) is set as a cylindrical rod structure, the synchronization rod (305) is provided with a cylindrical block, the synchronization rod (305) is provided with a threaded rod, the synchronization rod (305) is slidably connected in the torsion ring (302), the synchronization rod (305) is threadedly connected to the outside of the blocking cylinder (304), and the synchronization rod (305) is slidably connected to the inside of the synchronization cylinder (303).
9. The dichlorophenoxyacetic acid production device according to claim 1, characterized in that: The dehydration outer cylinder (401) is configured as a cylindrical structure, a circular ring-shaped protrusion is provided inside the dehydration outer cylinder (401), a connecting block is provided on the outer wall of the dehydration outer cylinder (401), and a circular through hole is provided on the outer wall of the dehydration outer cylinder (401); a heating component is provided on the temperature control frame (402), a refrigeration component is provided on the temperature control frame (402), and the temperature control frame (402) is fixed inside the dehydration outer cylinder (401).
10. The dichlorophenoxyacetic acid production device according to claim 1, characterized in that: The dehydration section (4) further comprises an outer row connecting pipe (404) and a slicing assembly (405); the outer row connecting pipe (404) is configured as a cylindrical tubular structure, a threaded connector is provided on the outer row connecting pipe (404), the outer row connecting pipe (404) is fixed inside the dehydration outer cylinder (401), and the outer row connecting pipe (404) is threadedly connected to the inside of the inner dehydration cylinder (403); a blocking assembly is provided inside the slicing assembly (405), a cutting assembly is provided inside the slicing assembly (405), and the slicing assembly (405) is fixed to the bottom of the inner dehydration cylinder (403).