A neutralization kettle for preparing sodium benzoate

Abstract

The utility model provides a kind of preparation sodium benzoate with neutralization kettle, it is characterized by including neutralization tank, regulating valve A, material beating pump, regulating valve B and filter tank, the bottom of the neutralization tank is connected with material beating pump by regulating valve A and pipeline, the material beating pump is connected with filter tank by regulating valve B and another pipeline, stirring motor is installed at the top of the neutralization tank, and the output end of the stirring motor is connected with stirring shaft;By setting connecting rod and scraper on the stirring paddle in the neutralization tank, so that stirring motor drives stirring paddle to rotate while driving scraper to rotate, prevent material from wall-hanging when stirring in neutralization reaction.

Description

Technical Field

[0001] This utility model relates to the field of sodium benzoate preparation technology, and in particular to a neutralization vessel for preparing sodium benzoate. Background Technology

[0002] Sodium benzoate (chemical formula) benzoic acid (COONa) is an important organic acid salt widely used in food preservatives, pharmaceutical intermediates, and cosmetic additives. Its preparation is based on the neutralization reaction of benzoic acid with a base (sodium hydroxide, sodium carbonate, or sodium bicarbonate). Utilizing the property of organic acids reacting with bases to produce salt and water, efficient preparation is achieved by controlling reaction conditions (temperature, pH, concentration).

[0003] Currently, during the preparation of sodium benzoate, material residues tend to accumulate on the inner wall of the neutralization vessel, making cleaning difficult. Utility Model Content

[0004] In view of the above technical problems, this utility model provides a neutralization kettle for preparing sodium benzoate to prevent the accumulation of residual material on the inner wall.

[0005] This utility model provides a neutralization vessel for preparing sodium benzoate, characterized by comprising a neutralization tank, a regulating valve A, a feeding pump, a regulating valve B, and a filter tank. The bottom of the neutralization tank is connected to the feeding pump via the regulating valve A and a pipe. The feeding pump is connected to the filter tank via the regulating valve B and another pipe. A stirring motor is installed on the top of the neutralization tank. The output end of the stirring motor is connected to a stirring shaft. The stirring shaft is connected to a stirring paddle. The left and right sides of the stirring paddle are respectively fixedly connected to scrapers via connecting rods. A sampling port is provided on the top of the neutralization tank on one side of the stirring motor. A feed pipe is provided on the top of the neutralization tank on the other side of the stirring motor. An overflow prevention pipe is provided on the upper side of the neutralization tank.

[0006] The filter tank is equipped with multiple filter plates inside. A vent is provided on one side of the top of the filter tank. A liquid inlet is provided on the upper part of the side wall of the filter tank. A steam outlet is provided on the side wall of the filter tank below the liquid inlet. A discharge outlet is provided on the middle side of the bottom of the filter tank. A drain outlet is provided next to the discharge outlet. A steam inlet is provided on the side wall of the filter tank opposite to the liquid inlet.

[0007] A heating tube is coiled inside the neutralization tank and connected to an external control power supply. A water pipe is installed on the lower part of the side wall of the neutralization tank. One end of the water pipe is connected to the inside of the neutralization tank, and a water valve is installed on the other side of the water pipe.

[0008] The overflow prevention pipe is connected to an external overflow prevention device.

[0009] The neutralization tank is fixedly connected to a bracket on its outer wall.

[0010] The stirring motor is mounted on the top of the neutralization tank via a mounting bracket.

[0011] The beneficial effects of this utility model are as follows: This utility model is a neutralization vessel for preparing sodium benzoate. By connecting scrapers to the left and right sides of the stirring paddle inside the neutralization vessel via connecting rods, the stirring motor drives the stirring paddle to rotate while the scrapers rotate and scrape off material residue from the inner wall of the neutralization vessel. This allows the material to be fully utilized while preventing it from sticking to the wall, reducing the difficulty of cleaning the neutralization vessel later. By installing an overflow prevention pipe at the top of the neutralization vessel, when bubbles are generated during the neutralization reaction, they can overflow from the overflow prevention pipe to the external overflow prevention device, preventing liquid from escaping and causing injury to workers when sampling from the sampling port. By winding a heating tube inside the neutralization vessel and controlling the power supply externally to heat the heating tube, the optimal reaction temperature inside the vessel is maintained, improving the quality of the neutralization reaction. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the filter tank structure of this utility model.

[0013] Attached reference numerals: 1-Neutralization tank; 2-Agitator motor; 3-Agitator shaft; 4-Agitator paddle; 5-Connecting rod; 6-Scraper; 7-Heating tube; 8-Water pipe; 9-Water valve; 10-Sampling port; 11-Feed pipe; 12-Overflow prevention pipe; 13-Support; 14-Regulating valve A; 15-Pipeline; 16-Feeding pump; 17-Regulating valve B; 18-Filter tank; 181-Vent port; 182-Liquid inlet; 183-Steam inlet; 184-Filter plate; 185-Steam outlet; 186-Drainage outlet; 187-Discharge outlet. Detailed Implementation

[0014] Example 1

[0015] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings.

[0016] like Figure 1-2As shown, this utility model provides a neutralization vessel for preparing sodium benzoate, characterized by including a neutralization tank 1, a regulating valve A14, a feeding pump 16, a regulating valve B17, and a filter tank 18. The bottom of the neutralization tank 1 is connected to the feeding pump 16 through the regulating valve A14 and a pipe 8. The feeding pump 16 is connected to the filter tank 18 through the regulating valve B17 and another pipe 8. A stirring motor 2 is installed on the top of the neutralization tank 1. The output end of the stirring motor 2 is connected to the stirring shaft 3. The stirring shaft 3 is connected to the stirring paddle 4. The left and right sides of the stirring paddle 4 are fixedly connected to the scraper 6 through connecting rods 5 respectively. A sampling port 10 is provided on the top of the neutralization tank 1 on one side of the stirring motor 2. A feed pipe 11 is provided on the top of the neutralization tank 1 on the other side of the stirring motor 2. An overflow prevention pipe 12 is provided on the upper side of the neutralization tank 1.

[0017] The filter tank 18 is equipped with multiple layers of filter plates 184. A vent 181 is provided on one side of the top of the filter tank 18. A liquid inlet 182 is provided on the upper part of the side wall of the filter tank 18. A steam outlet 185 is provided on the side wall of the filter tank 18 below the liquid inlet 182. A discharge port 187 is provided on the middle side of the bottom of the filter tank 18. A drain port 186 is provided next to the discharge port 187. A steam inlet 185 is provided on the side wall of the filter tank 18 opposite to the liquid inlet 182.

[0018] A heating tube 7 is coiled inside the neutralization tank 1. The heating tube 7 is connected to an external control power supply. A water pipe 8 is installed on the lower part of the side wall of the neutralization tank 1. One end of the water pipe 8 is connected to the inside of the neutralization tank 1, and a water valve 9 is installed on the other side of the water pipe 8.

[0019] The overflow pipe 12 is connected to an external overflow prevention device.

[0020] A bracket 13 is fixedly connected to the outer wall of neutralization tank 1.

[0021] The stirring motor 2 is mounted on the top of the neutralization tank 1 via a mounting bracket.

[0022] Example 2

[0023] In use, the raw materials required for the reaction are injected into the neutralization tank 1 through the feed pipe 11. The stirring motor 2 is started, which drives the stirring shaft 3, stirring paddle 4, connecting rod 5 and scraper 6 to rotate simultaneously. During rotation, the scraper 6 scrapes off the material residue on the inner wall of the neutralization tank 1. The external control power supply of the heating tube 7 is started, and the heating tube 7 heats up, which in turn heats the surrounding medium water, thereby heating the reaction liquid inside the neutralization tank 1 and keeping it at the optimal reaction temperature, i.e., 98-100℃, thus improving the quality of the neutralization reaction. After the reaction is complete, the regulating valve A14 is opened, so that the reaction liquid is transported to the filter tank through the feed pump 16 and pipeline. The regulating valve B is started at the same time. The reaction liquid is filtered through multiple filter plates to remove particulate impurities and then discharged through the outlet at the bottom of the filter tank.

[0024] When sampling and testing are required, sampling can be performed by opening the sampling port on one side of the top of the neutralization tank. Since the neutralization reaction will produce bubbles, the overflow pipe 12 allows the bubbles to enter the external overflow prevention device through the overflow pipe 12, preventing the bubbles from harming the staff. Since the overflow prevention device is patented separately, it will not be described in detail here.

[0025] Meanwhile, in order to better filter the sodium benzoate solution, hot steam needs to be introduced into the tank through the steam inlet 183 on one side of the filter tank 18 to prevent sodium benzoate from crystallizing and clogging the filter plate due to low temperature inside the tank.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A neutralization vessel for preparing sodium benzoate, characterized in that... The system includes a neutralization tank, regulating valve A, a feeding pump, regulating valve B, and a filter tank. The bottom of the neutralization tank is connected to the feeding pump via regulating valve A and a pipe. The feeding pump is connected to the filter tank via regulating valve B and another pipe. A stirring motor is installed on the top of the neutralization tank. The output end of the stirring motor is connected to a stirring shaft, which is connected to a stirring paddle. The left and right sides of the stirring paddle are fixedly connected to scrapers via connecting rods. A sampling port is provided on the top of the neutralization tank on one side of the stirring motor, and a feed pipe is provided on the top of the neutralization tank on the other side of the stirring motor. An overflow prevention pipe is provided on the upper side of the neutralization tank.

2. The neutralization vessel for preparing sodium benzoate according to claim 1, characterized in that... The filter tank is equipped with multiple filter plates inside. A vent is provided on one side of the top of the filter tank. A liquid inlet is provided on the upper part of the side wall of the filter tank. A steam outlet is provided on the side wall of the filter tank below the liquid inlet. A discharge outlet is provided on the middle side of the bottom of the filter tank. A drain outlet is provided next to the discharge outlet. A steam inlet is provided on the side wall of the filter tank opposite to the liquid inlet.

3. The neutralization vessel for preparing sodium benzoate according to claim 1, characterized in that... A heating tube is coiled inside the neutralization tank and connected to an external control power supply. A water pipe is installed on the lower part of the side wall of the neutralization tank. One end of the water pipe is connected to the inside of the neutralization tank, and a water valve is installed on the other side of the water pipe.

4. The neutralization vessel for preparing sodium benzoate according to claim 1, characterized in that... The overflow prevention pipe is connected to an external overflow prevention device.

5. The neutralization vessel for preparing sodium benzoate according to claim 1, characterized in that... The neutralization tank is fixedly connected to a bracket on its outer wall.

6. The neutralization vessel for preparing sodium benzoate according to claim 1, characterized in that... The stirring motor is mounted on the top of the neutralization tank via a mounting bracket.

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