TMAH continuous production device

Abstract

The utility model discloses a continuous production device for TMAH (tetramethylammonium hydroxide), which relates to the technical field of TMAH production, and comprises a configuration tank body, a configuration mechanism is arranged on the outer side of the configuration tank body, and the configuration mechanism is used for injecting and mixing raw materials in different forms according to the production steps of tetramethylammonium hydroxide, so that the TMAH can be continuously produced. The efficiency of treating materials in the preparation tank body step by step through a single set of equipment is improved, a material mixing mechanism is arranged in the preparation tank body, gas is injected into the liquid through the material mixing mechanism, the reaction speed of the liquid and the gas is increased, the time needed by the materials in the reaction and mixing process is shortened, and the material mixing efficiency is improved. And the bottom end of the preparation tank body is connected with a liquid discharge valve in a penetrating manner. In the using process, the single aeration pipe is vertically lifted through the ball screw, and in the using process, ammonia gas is uniformly injected into methanol, so that the reaction rate of the methanol and the ammonia gas is increased, and the duration required by methylamine production is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of TMAH production, in particular to a TMAH continuous production device. Background Art

[0002] Trimethylamine hydrochloride (TMAH) is an important raw material for the production of chemical products and is widely used in catalysts, pharmaceutical intermediates, pesticides, dyes and other fields. The production process of tetramethylammonium hydroxide mainly includes the following steps: first, methanol is reacted with ammonia to generate methylamine; then, methylamine is reacted with sodium hydroxide to synthesize tetramethylammonium hydroxide.

[0003] The production device first reacts methanol with ammonia: methanol and ammonia are added to the reactor, and the reaction temperature is controlled at 20-40°C. During the treatment process, it is difficult to control the amount of ammonia and methanol reacting during the mixing of gas and liquid, which will cause excess ammonia to overflow, resulting in a waste of ammonia costs. When methylamine and sodium hydroxide are mixed, simple mechanical mixing will affect the uniformity of the mixing and extend the time required for mixing the materials. Summary of the invention

[0004] The purpose of the utility model is to provide a TMAH continuous production device to solve the above-mentioned defects caused by the prior art.

[0005] A TMAH continuous production device comprises a configuration tank body, wherein a configuration mechanism is arranged on the outer side of the configuration tank body, wherein the configuration mechanism injects and mixes raw materials of different forms according to the production steps of tetramethylammonium hydroxide, thereby improving the efficiency of a single set of equipment in processing materials in the configuration tank body in steps, wherein a mixing mechanism is arranged inside the configuration tank body, wherein the mixing mechanism accelerates the reaction speed of liquid and gas inside a liquid into which gas is injected, thereby shortening the time required for the materials to react and mix, and wherein a drain valve is connected through the bottom end of the configuration tank body.

[0006] Preferably, the configuration mechanism includes a cover plate, a feeding pipe, an air supply pipe, an electric heating rod and mixing blades. A cover plate is arranged directly above the configuration tank body, a feeding pipe is penetrated and connected to the top of the cover plate, an air supply pipe is penetrated and connected to the top of the cover plate, electric heating rods are symmetrically arranged below the cover plate, and mixing blades are arranged at the inner bottom end of the configuration tank body.

[0007] Preferably, the cover plate is connected to the gas storage disc body through an electric heating rod symmetrically arranged at the bottom end.

[0008] Preferably, the mixing mechanism includes a motor, an air storage disc, a ball screw, an aeration tube, an injection through hole and an internally threaded tube, the output end of the motor is connected to the ball screw, the outer side of the ball screw is penetrated and connected to the internally threaded tube, the outer side of the internally threaded tube is connected to the air storage disc, the air storage disc has aeration tubes distributed in an annular manner, the top of the air storage disc is penetrated with an injection through hole, and the air storage disc is arranged inside the configuration tank.

[0009] Preferably, the motor is connected to the top end of the mixing blade via a ball screw connected to the output end.

[0010] Preferably, the gas storage disc body is connected to the gas supply pipeline through an injection through hole opened through the top end.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] 1. During use, the aeration single tube is vertically lifted and lowered by a ball screw. During use, ammonia is uniformly injected into the interior of methanol to increase the reaction rate of methanol and ammonia, thereby shortening the time required for methylamine production, and controlling the amount of ammonia injected to prevent ammonia from escaping from the interior of methanol. On the one hand, when methylamine and sodium hydroxide need to be mixed, aeration is used to accelerate the mixing speed of methylamine and sodium hydroxide, and the dissolution time of sodium hydroxide is shortened at the same concentration, so that the sodium hydroxide agent can be completely dissolved and the molecular chain can be fully extended.

[0013] 2. When the operator drives the ball screw to rotate through the motor, the mixing blade can be driven by the ball screw to rotate. During the material mixing process, gas is injected into the liquid at the same time, thereby accelerating the efficiency of material production and reaction, and controlling the amount of injected gas according to the reaction requirements, so as to complete multi-step reactions and mixing processes at one time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the front section structure of the tank body in the utility model.

[0016] Figure 3 It is a schematic diagram of the structure of the gas storage disc body itself in the utility model.

[0017] Figure 4 It is a schematic diagram of the front section structure of the gas storage disc body in the utility model.

[0018] Figure 5 It is a schematic diagram of the top view of the configuration tank body in the utility model.

[0019] in:

[0020] 1. Configuration tank body; 2. Cover plate; 3. Feeding pipe; 4. Motor; 5. Air supply pipe; 6. Configuration mechanism; 7. Electric heating rod; 8. Gas storage disc; 9. Mixing mechanism; 10. Ball screw; 11. Aeration single tube; 12. Mixing blades; 13. Drain valve; 14. Injection through hole; 15. Internal threaded pipe. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figures 1 to 5 As shown, a TMAH continuous production device includes a configuration tank body 1, and a configuration mechanism 6 is arranged on the outside of the configuration tank body 1. The configuration mechanism 6 injects and mixes raw materials in different forms according to the production steps of tetramethylammonium hydroxide, thereby improving the efficiency of a single set of equipment for step-by-step processing of materials inside the configuration tank body 1. A mixing mechanism 9 is arranged inside the configuration tank body 1, and the mixing mechanism 9 accelerates the reaction speed of liquid and gas inside the liquid injected with gas, shortening the time required for the reaction and mixing of the materials. A drain valve 13 is connected through the bottom end of the configuration tank body 1.

[0023] In this embodiment, the configuration mechanism 6 includes a cover plate 2, a feeding pipe 3, an air supply pipe 5, an electric heating rod 7 and a mixing blade 12. The cover plate 2 is arranged directly above the configuration tank body 1, the top of the cover plate 2 is penetrated and connected with the feeding pipe 3, the top of the cover plate 2 is penetrated and connected with the air supply pipe 5, the electric heating rod 7 is symmetrically arranged below the cover plate 2, and the mixing blade 12 is arranged at the bottom end of the configuration tank body 1. The liquid is heated by the electric heating rod 7, and the mixing blade 12 is used to circulate and mix the bottom of the device.

[0024] In this embodiment, the cover plate 2 is connected to the gas storage disc body 8 through the electric heating rod 7 symmetrically arranged at the bottom, and the material is cyclically heated by the electric heating rod 7 to accelerate the reaction speed of the material.

[0025] In this embodiment, the mixing mechanism 9 includes a motor 4, an air storage disc body 8, a ball screw 10, an aeration tube 11, an injection through hole 14 and an internal threaded tube 15. The output end of the motor 4 is connected to the ball screw 10, and the outer side of the ball screw 10 is penetrated and connected with the internal threaded tube 15. The outer side of the internal threaded tube 15 is connected to the air storage disc body 8. The air storage disc body 8 is annularly distributed with an aeration tube 11. The top of the air storage disc body 8 is penetrated with an injection through hole 14. The air storage disc body 8 is arranged inside the configuration tank body 1.

[0026] In this embodiment, the motor 4 is connected to the top of the mixing blade 12 through a ball screw 10 connected to the output end. When the aeration single tube 11 is driven to rise and fall vertically by the ball screw 10, the materials are mixed and stirred by the mixing blade 12.

[0027] In this embodiment, the gas storage disc 8 is connected to the gas supply pipeline 5 through an injection hole 14 formed through the top, and the reaction gas is injected through the injection hole 14 to increase the reaction speed of the gas and liquid.

[0028] In actual application, this TMAH continuous production device includes the following work contents:

[0029] Step 1: During the production process, methanol is first injected into the configuration tank 1, and the gas supply pipe 5 is connected to the ammonia gas supply pipe fitting. The operator can turn on the motor 4, drive the ball screw 10 to rotate through the motor 4, and use the ball screw 10 to drive the internal threaded tube 15 and the gas storage disc 8 to vertically descend, and the electric heating rods 7 arranged on both sides are used to vertically guide the gas storage disc 8;

[0030] Step 2: Inject gas into the gas storage disc 8 through the gas delivery pipe 5, and inject the ammonia gas set inside into the methanol through the aeration single pipe 11 set outside, and turn on one group of electric heating rods 7 at the same time, and use the electric heating rods 7 to heat the liquid, and control the heating temperature of the liquid at 20-40°C. When a certain amount of methanol and ammonia gas are dissolved, methylamine is produced;

[0031] Step 3: The operator then connects the top exhaust hole of the cover plate 2 to the pipeline, and puts sodium hydroxide into the configuration tank 1. The operator can use the motor 4 to drive the ball screw 10 to rotate, and use the ball screw 10 to drive the mixing blade 12 to rotate, thereby accelerating the mixing speed of methylamine and sodium hydroxide. The gas generated during the mixing process is directly discharged. The operator can inject oxygen into the interior of the aeration single tube 11, thereby accelerating the melting or reaction speed of the sodium hydroxide.

[0032] Step 4: The mixed methylamine and sodium hydroxide liquid is heated by the electric heating rod 7 so that the liquid temperature is controlled at 60-80° C. The methylamine and sodium hydroxide are mixed and reacted for 6-8 hours. During this process, the methylamine and sodium hydroxide react fully to generate tetramethylammonium hydroxide, and then the reacted material is discharged from the interior of the configuration tank 1 by opening the drain valve 13 provided below.

[0033] Therefore, the embodiments disclosed above are only illustrative in all aspects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. A TMAH continuous production device, characterized in that: The invention comprises a configuration tank (1), wherein a configuration mechanism (6) is arranged on the outside of the configuration tank (1), wherein the configuration mechanism (6) injects and mixes raw materials of different forms according to the production steps of tetramethylammonium hydroxide, thereby improving the efficiency of a single set of equipment in processing the materials inside the configuration tank (1) in steps, wherein a mixing mechanism (9) is arranged inside the configuration tank (1), wherein the mixing mechanism (9) accelerates the reaction speed of the liquid and the gas inside the liquid injected with the gas, thereby shortening the time required for the materials to react and mix, and a drain valve (13) is connected through the bottom end of the configuration tank (1); The configuration mechanism (6) comprises a cover plate (2), a feeding pipe (3), an air supply pipe (5), an electric heating rod (7) and a mixing blade (12); the cover plate (2) is arranged directly above the configuration tank body (1); the top end of the cover plate (2) is connected to the feeding pipe (3); the top end of the cover plate (2) is connected to the air supply pipe (5); the electric heating rod (7) is symmetrically arranged below the cover plate (2); and the mixing blade (12) is arranged at the bottom end of the configuration tank body (1).

2. A TMAH continuous production device according to claim 1, characterized in that: The cover plate (2) is connected to the gas storage disc body (8) through an electric heating rod (7) symmetrically arranged at the bottom end.

3. A TMAH continuous production device according to claim 1, characterized in that: The mixing mechanism (9) comprises a motor (4), an air storage disc (8), a ball screw (10), an aeration tube (11), an injection through hole (14) and an internally threaded tube (15); the output end of the motor (4) is connected to the ball screw (10); the outer side of the ball screw (10) is connected to the internally threaded tube (15); the outer side of the internally threaded tube (15) is connected to the air storage disc (8); the air storage disc (8) is provided with an aeration tube (11) in an annular shape; the top of the air storage disc (8) is provided with an injection through hole (14); and the air storage disc (8) is arranged inside the configuration tank (1).

4. A TMAH continuous production device according to claim 3, characterized in that: The motor (4) is connected to the top end of the mixing blade (12) through a ball screw (10) connected to the output end.

5. A TMAH continuous production device according to claim 3, characterized in that: The gas storage disc body (8) is connected to the gas delivery pipeline (5) via an injection through hole (14) penetrating through the top end.

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