A reaction kettle device for producing sodium percarbonate

Abstract

This utility model provides a reaction vessel device for sodium percarbonate production, belonging to the field of sodium percarbonate production technology. It includes: a reaction mechanism, a cooling mechanism on one side of the reaction mechanism, a reaction cylinder, an inner reaction liner inside the reaction cylinder, a stirring shaft inside the reaction cylinder, and folded blades and arc-shaped blades fixedly connected to the surface of the stirring shaft from top to bottom. A mounting bracket is installed on the upper surface of the reaction cylinder. This solution achieves a dual mixing mechanism of radial shearing and axial circulation through a combined fluid design of folded and arc-shaped blades, improving the material dispersion scale. The dynamic stirring height adjustment function driven by an electric cylinder adapts to changes in the reaction liquid level, eliminating the interference of foam layers on the stirring effect. With the cooperation of the cooling mechanism, the closed-loop circulation design of the coolant reduces the frequency of adding chilled brine, and the foam recycling and defoaming mechanism reduces the energy consumption of product processing.

Description

Technical Field

[0001] This utility model belongs to the field of sodium percarbonate production technology, specifically relating to a reaction vessel device for sodium percarbonate production. Background Technology

[0002] Sodium percarbonate, also known as solid hydrogen peroxide, possesses the dual properties of sodium carbonate and hydrogen peroxide. It is a representative of highly efficient oxygen-based bleaching agents and has been widely used in fields such as washing, printing and dyeing, textiles, papermaking, pharmaceuticals, household and personal care product formulations due to its excellent bleaching activity and bactericidal properties.

[0003] Traditional single-type impellers only produce a single flow direction, which easily forms a solid rotation dead zone in high-viscosity slurry, leading to excessive local reaction between sodium carbonate and hydrogen peroxide, increasing the oxygen escape rate of by-products. At the same time, existing reactors are cooled by external jacket cooling, which takes a long time. Therefore, we propose a reactor device for sodium percarbonate production. Utility Model Content

[0004] The purpose of this invention is to provide a reaction vessel device for sodium percarbonate production, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A reaction vessel for sodium percarbonate production includes: a reaction mechanism, a cooling mechanism on one side of the reaction mechanism, a reaction cylinder, an inner reaction liner inside the reaction cylinder, a stirring shaft inside the reaction cylinder, folded blades and arc-shaped blades fixedly connected to the surface of the stirring shaft from top to bottom, a mounting frame mounted on the upper surface of the reaction cylinder, an electric cylinder for longitudinal adjustment mounted on the surface of the mounting frame, a movable seat fixedly connected to the surface of the piston rod of the electric cylinder, a servo motor mounted on the surface of the movable seat, and the output shaft of the servo motor fixedly connected to the stirring shaft, and a booster water pump mounted on one side of the reaction cylinder.

[0007] The cooling mechanism includes a cooling tower located on one side of the reaction cylinder. The cooling tower has a cooling pipe inside, and one end of the cooling pipe is connected to the liquid inlet of the booster water pump. A transfer pipe is fixedly connected to one end of the cooling pipe. A pre-cooling pipe is provided inside the transfer pipe. A guide bucket adapted to the inner wall of the transfer pipe is fixedly connected to one end of the pre-cooling pipe.

[0008] In a preferred embodiment of this utility model, the reaction cylinder is a carbon steel cylinder, and the reaction liner is a titanium-palladium alloy liner.

[0009] In a preferred embodiment of this utility model, a cavity is formed between the reaction cylinder and the reaction liner, the outlet end of the booster pump is connected to the lower surface of the cavity, and the transfer pipe is connected to the upper surface of the cavity.

[0010] As a preferred embodiment of this utility model, two guide rods are mounted on the surface of the movable base, and the guide rods are slidably connected to the surface of the mounting frame. A protective ring is provided on the top of the guide rods.

[0011] As a preferred embodiment of this utility model, the upper surface of the reaction cylinder is equipped with multiple feed pipes, and the bottom of the reaction cylinder is equipped with a discharge valve that communicates with the inner liner of the reaction vessel.

[0012] As a preferred embodiment of this utility model, an inlet pipe is installed on one side of the cooling tower, and a drain valve is installed at the bottom of the cooling tower.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This solution utilizes a combined fluid design of folded and arc-shaped blades to achieve a dual mixing mechanism of radial shearing and axial circulation, improving the material dispersion scale. The dynamic stirring height adjustment function driven by an electric cylinder adapts to changes in the reaction liquid level and eliminates the interference of foam layer on the stirring effect. With the cooperation of the cooling mechanism, the closed-loop circulation design of the coolant reduces the frequency of adding chilled brine, and the foam recycling and defoaming mechanism reduces the energy consumption of product processing. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the reaction mechanism in the structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the cooling mechanism in the structure of this utility model;

[0020] Figure 4 This is a partial enlarged view of the cooling mechanism in the structure of this utility model.

[0021] In the diagram: 1. Reaction mechanism; 101. Reaction cylinder; 102. Reaction liner; 103. Stirring shaft; 104. Folded blade; 105. Arc blade; 106. Mounting bracket; 107. Electric cylinder; 108. Moving seat; 109. Servo motor; 110. Guide rod; 111. Protective ring; 112. Discharge valve; 113. Booster pump; 114. Feed pipe; 2. Cooling mechanism; 201. Cooling tower; 202. Cooling pipe; 203. Liquid inlet pipe; 204. Discharge valve; 205. Transfer pipe; 206. Pre-cooling pipe; 207. Guide hopper. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example

[0024] Please see Figure 1-4 The technical solution provided in this embodiment is as follows:

[0025] A reaction vessel apparatus for producing sodium percarbonate includes: a reaction mechanism 1, a cooling mechanism 2 on one side of the reaction mechanism 1, a reaction cylinder 101, an inner reaction liner 102 inside the reaction cylinder 101, a stirring shaft 103 inside the reaction cylinder 101, and a folded blade 104 and an arc-shaped blade 105 fixedly connected from top to bottom on the surface of the stirring shaft 103. A mounting bracket 106 is mounted on the upper surface of the reaction cylinder 101, and an electric cylinder 107 for longitudinal adjustment is mounted on the surface of the mounting bracket 106. A movable seat 108 is fixedly connected to the surface of the piston rod of the electric cylinder 107, and a servo motor 109 is mounted on the surface of the movable seat 108, with the output shaft of the servo motor 109 fixedly connected to the stirring shaft 103. A booster water pump 113 is mounted on one side of the reaction cylinder 101. The cooling mechanism 2 includes components disposed on one side of the reaction cylinder 101. The cooling tower 201 on the side has a cooling pipe 202 inside. One end of the cooling pipe 202 is connected to the liquid inlet of the booster water pump 113. One end of the cooling pipe 202 is fixedly connected to a transfer pipe 205. A pre-cooling pipe 206 is provided inside the transfer pipe 205. One end of the pre-cooling pipe 206 is fixedly connected to a guide bucket 207 adapted to the inner wall of the transfer pipe 205. Through the combined fluid design of the folded blade 104 and the arc blade 105, a dual mixing mechanism of radial shear and axial circulation is realized, which improves the material dispersion scale. The dynamic stirring height adjustment function driven by the electric cylinder 107 adapts to the change of reaction liquid level and eliminates the interference of foam layer on the stirring effect. With the cooperation of the cooling mechanism 2, the closed-loop circulation design of the coolant reduces the frequency of adding chilled brine. Combined with the foam recycling and defoaming mechanism, the energy consumption of product processing is reduced.

[0026] Specifically, the reaction cylinder 101 is a carbon steel cylinder, and the reaction liner 102 is a titanium-palladium alloy liner.

[0027] In a specific embodiment of this utility model, the reaction cylinder 101 is made of carbon steel to provide structural strength, and the reaction liner 102 is made of titanium-palladium alloy to resist corrosion from hydrogen peroxide and alkaline mother liquor, thereby preventing the dissolution of metal ions and catalyzing the decomposition of hydrogen peroxide. The titanium-palladium alloy liner extends the service life of the equipment.

[0028] Specifically, a cavity is formed between the reaction cylinder 101 and the reaction liner 102, the outlet end of the booster pump 113 is connected to the lower surface of the cavity, and the transfer pipe 205 is connected to the upper surface of the cavity.

[0029] In a specific embodiment of this utility model, the booster water pump 113 injects coolant into the bottom of the cavity, and after being heated, it rises to the top and returns to the cooling tower 201 via the transfer pipe 205, forming a counter-current heat exchange path with the bottom inlet and the top outlet, maximizing the heat transfer efficiency due to temperature difference and improving the cooling efficiency.

[0030] Specifically, two guide rods 110 are mounted on the surface of the movable base 108, and the guide rods 110 are slidably connected to the surface of the mounting bracket 106. A protective ring 111 is provided on the top of the guide rods 110.

[0031] In a specific embodiment of this utility model, the guide rod 110 restricts the moving seat 108 to move only in the vertical direction, and the protective ring 111 prevents dust from entering the sliding parts, ensuring the lifting accuracy of the electric cylinder 107, while reducing mechanical vibration loss.

[0032] Specifically, the upper surface of the reaction cylinder 101 is equipped with multiple feed pipes 114, and the bottom of the reaction cylinder 101 is equipped with a discharge valve 112 that communicates with the reaction liner 102.

[0033] In a specific embodiment of this utility model, the multi-feed pipe 114 enables the separate injection of sodium carbonate slurry, hydrogen peroxide, and mother liquor, avoiding localized reactions caused by premixing. The discharge valve 112 is directly connected to the reaction tank 102, shortening the discharge time and production cycle.

[0034] Specifically, an inlet pipe 203 is installed on one side of the cooling tower 201, and a drain valve 204 is installed at the bottom of the cooling tower 201.

[0035] In a specific embodiment of this utility model, the inlet pipe 203 replenishes chilled brine, and the drain valve 204 periodically discharges high-temperature coolant to maintain the heat exchange efficiency of the cooling tower 201.

[0036] Working principle: The mother liquor is injected into the reaction tank 102 through the feed pipe 114. Polyacrylate is added to form a foam environment. Sodium carbonate slurry and hydrogen peroxide are fed in a 1:1.2-1.4 molar ratio. The servo motor 109 drives the stirring shaft 103 to run at a speed of 200-400 rpm. The folded blades 104 shear large particle agglomerates, and the arc blades 105 push the material to circulate axially. The electric cylinder 107 automatically adjusts the stirring depth according to the liquid level to ensure that there is no dead corner mixing in the whole reactor. The coolant in the cavity of the outer wall of the reaction tank 102 is pumped into the cooling tower 201 by the booster water pump 113. It exchanges heat with the chilled brine in the cooling pipe 202. After cooling, it flows back to the top of the cavity through the transfer pipe 205. When the high temperature coolant flows through the pre-cooling pipe 206, it is dispersed into a film by the guide bucket 207 to increase the heat exchange area and increase the cooling rate. After the reaction is completed, the slurry is discharged through the discharge valve 112 for the next processing step. Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A reaction vessel apparatus for producing sodium percarbonate, characterized in that, include: A reaction mechanism (1) is provided with a cooling mechanism (2) on one side. The reaction mechanism (1) includes a reaction cylinder (101). The reaction cylinder (101) is provided with a reaction liner (102) inside. The reaction cylinder (101) is provided with a stirring shaft (103) inside. The surface of the stirring shaft (103) is fixedly connected with a folded blade (104) and an arc blade (105) from top to bottom. The upper surface of the reaction cylinder (101) is equipped with a mounting bracket (106). The surface of the mounting bracket (106) is equipped with an electric cylinder (107) for longitudinal adjustment. The surface of the piston rod of the electric cylinder (107) is fixedly connected with a moving seat (108). The surface of the moving seat (108) is equipped with a servo motor (109), and the output shaft of the servo motor (109) is fixedly connected to the stirring shaft (103). A booster water pump (113) is installed on one side of the reaction cylinder (101). The cooling mechanism (2) includes a cooling tower (201) disposed on one side of the reaction cylinder (101). The cooling tower (201) is provided with a cooling pipe (202) inside, and one end of the bottom side of the cooling pipe (202) is connected to the liquid inlet of the booster water pump (113). A transfer pipe (205) is fixedly connected to one end of the top of the cooling pipe (202). A precooling pipe (206) is provided inside the transfer pipe (205). A guide bucket (207) adapted to the inner wall of the transfer pipe (205) is fixedly connected to one end of the precooling pipe (206).

2. The reaction vessel apparatus for sodium percarbonate production according to claim 1, characterized in that, The reaction cylinder (101) is a carbon steel cylinder, and the reaction liner (102) is a titanium-palladium alloy liner.

3. The reaction vessel apparatus for sodium percarbonate production according to claim 1, characterized in that, A cavity is formed between the reaction cylinder (101) and the reaction inner liner (102). The outlet end of the booster water pump (113) is connected to the lower surface of the cavity, and the transfer pipe (205) is connected to the upper surface of the cavity.

4. The reaction vessel apparatus for sodium percarbonate production according to claim 1, characterized in that, Two guide rods (110) are mounted on the surface of the movable base (108), and the guide rods (110) are slidably connected to the surface of the mounting bracket (106). A protective ring (111) is provided on the top of the guide rods (110).

5. The reaction vessel apparatus for sodium percarbonate production according to claim 1, characterized in that, The upper surface of the reaction cylinder (101) is equipped with multiple feed pipes (114), and the bottom of the reaction cylinder (101) is equipped with a discharge valve (112) that communicates with the reaction inner liner (102).

6. The reaction vessel apparatus for sodium percarbonate production according to claim 1, characterized in that, A liquid inlet pipe (203) is installed on one side of the cooling tower (201), and a liquid drain valve (204) is installed at the bottom of the cooling tower (201).

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