CN213528596U - Reation kettle is used in tranexamic acid production - Google Patents
Reation kettle is used in tranexamic acid production Download PDFInfo
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- CN213528596U CN213528596U CN202022222109.3U CN202022222109U CN213528596U CN 213528596 U CN213528596 U CN 213528596U CN 202022222109 U CN202022222109 U CN 202022222109U CN 213528596 U CN213528596 U CN 213528596U
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Abstract
The utility model relates to a reation kettle is used in tranexamic acid production, including the cauldron body, the top of this cauldron body is equipped with the first inlet pipe that is used for barium hydroxide feeding, its characterized in that, the outer end of first inlet pipe has the feeding device through the tube coupling, and this feeding device includes the spiral feeder, storage silo, bucket elevator, hopper and the weighing type metering tank that loop through the pipeline and link to each other, the discharge gate of weighing type metering tank is connected with the outer end of first inlet pipe through the pipeline, be equipped with fourth, five stop valves on the inlet pipe of weighing type metering tank, the bottom of weighing type metering tank is equipped with weighing sensor on outlet pipe; when the barium hydroxide in the weighing type metering tank reaches the set weight, the PLC can receive the signal transmitted by the weighing sensor and automatically control to close the fourth stop valve and open the fifth stop valve so as to feed the barium hydroxide; this neotype reation kettle can drop into the barium hydroxide of settlement weight automatically, and can not produce dust pollution when throwing the material.
Description
Technical Field
The utility model relates to a chemical reaction equipment field, concretely relates to reation kettle is used in tranexamic acid production.
Background
The preparation method of tranexamic acid comprises adding aminomethylbenzoic acid, water, concentrated sulfuric acid and catalyst into a first reaction kettle, stirring and heating, and introducing hydrogen gas for hydrogenation reaction to obtain reaction solution; adding the reaction solution and concentrated sulfuric acid into a second reaction kettle, heating to 180-200 ℃, preserving heat and stirring for conversion reaction to obtain tranexamic acid; typically, the catalyst is barium hydroxide, an inorganic substance that is highly toxic, strongly alkaline, and highly corrosive.
A reaction kettle for preparing tranexamic acid, which is common in the market, comprises a kettle body, wherein the upper end and the lower end of the kettle body are respectively provided with a feeding pipe and a discharging pipe, when feeding, an insertion pipe is manually inserted into the feeding pipe, and a catalyst, aminomethylbenzoic acid and concentrated sulfuric acid are respectively fed into the kettle body through the insertion pipe; when discharging, open the valve on the discharging pipe, the reaction liquid flows out from the discharging pipe.
The reaction kettle on the market has the following problems: the automation degree of feeding and discharging is low; in the feeding process of barium hydroxide, impurities easily enter the kettle body from the feeding pipe, and simultaneously, a large amount of barium hydroxide dust can be generated in the air, so that the harm to a human body is caused.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is through a reation kettle is used in tranexamic acid production, this neotype reation kettle can drop into the barium hydroxide of settlement weight automatically, and can not produce dust pollution when throwing the material.
In order to solve the technical problem, the utility model provides a reaction kettle for tranexamic acid production, including the cauldron body, the top of this cauldron body is equipped with the first inlet pipe that is used for barium hydroxide to feed, a serial communication port, the outer end of first inlet pipe has the feeding device through the tube coupling, and this feeding device includes spiral feeder, storage silo, bucket elevator, hopper and the weighing type metering tank that loop through the pipeline and link to each other, the discharge gate of weighing type metering tank is connected with the outer end of first inlet pipe through the pipeline, be equipped with fourth, five stop valves on the inlet pipe of weighing type metering tank, outlet pipe of weighing type metering tank respectively, the bottom of weighing type metering tank is equipped with weighing sensor; when the barium hydroxide in the weighing type metering tank reaches the set weight, the PLC can receive signals transmitted by the weighing sensor, automatically control the fourth stop valve to be closed, and open the fifth stop valve to feed the barium hydroxide.
Further, a second feeding pipe is arranged at the top end of the kettle body, and the outer end of the second feeding pipe is connected to a concentrated sulfuric acid storage tank through a pipeline, a first stop valve and a first flowmeter which are sequentially arranged on the pipeline; the first stop valve is opened through PLC control, so that automatic feeding of concentrated sulfuric acid is realized; the flow of concentrated sulfuric acid is measured through the first flowmeter, and when the set flow is reached, the first stop valve is closed through PLC control.
Further, a third feeding pipe is arranged at the top end of the kettle body, and the outer end of the third feeding pipe is connected to an aminomethylbenzoic acid storage tank through a pipeline, a second stop valve and a second flowmeter which are sequentially arranged on the pipeline; the second stop valve is opened under the control of a PLC (programmable logic controller) so as to realize the automatic feeding of the aminomethylbenzoic acid; and measuring the flow rate of the aminomethylbenzoic acid by a second flow meter, and closing a second stop valve by PLC control when the set flow rate is reached.
Further, a discharge pipe is arranged at the top end of the kettle body, the inner end of the discharge pipe extends to the bottom of the kettle body, and the outer end of the discharge pipe is connected to a vacuum pump through a pipeline and a buffer tank arranged on the pipeline; the first stop valve and the second stop valve are controlled to be closed through the PLC, and the vacuum pump and the third stop valve are controlled to be opened, so that automatic discharging of the reaction liquid is realized.
Further, a spiral material conveying rod is arranged at the bottom of the storage bin, and a radar level gauge is arranged at the top of the storage bin in a penetrating mode; when the material in the storage silo is too much, PLC can receive the signal that the radar charge level indicator sent to automatic control opens alarm device, closes the driving motor of spiral feeder simultaneously, prevents that the storage silo from exploding the storehouse.
Further, the outer side of the kettle body is provided with an air particle monitor for monitoring the amount of barium hydroxide dust
Measuring; when the barium hydroxide dust in the air is too much, the PLC can receive a signal sent by the air particle monitor, automatically control to start the alarm device and simultaneously power off the equipment.
The utility model has the advantages that: when the barium hydroxide in the weighing type measuring tank reaches the set weight, the PLC
The system can receive signals transmitted by the weighing sensor, automatically control the fourth stop valve to be closed, and open the fifth stop valve to feed the barium hydroxide, so that the novel reaction kettle can automatically feed the barium hydroxide with set weight, and dust pollution can not be generated during feeding; simultaneously this neotype reation kettle can also carry out concentrated sulfuric acid and the ejection of compact of the feeding of aminomethylbenzoic acid and reaction solution automatically, therefore this neotype reation kettle degree of automation is high.
Drawings
In order to clearly illustrate the innovative principles of the utility model and its technical advantages compared to the existing reactors, a possible embodiment is illustrated below by way of non-limiting example applying said principles, with the aid of the accompanying drawings. In the figure:
FIG. 1 is a schematic view of a reaction kettle for producing tranexamic acid according to an embodiment of the present invention;
FIG. 2 is a schematic view of the kettle.
Detailed Description
Example 1
As shown in fig. 1-2, the utility model provides a reaction kettle for tranexamic acid production, including the kettle body 1, the top of this kettle body 1 is equipped with first inlet pipe 2 that is used for barium hydroxide to feed, a serial communication port, the outer end of first inlet pipe 2 has the feeding device through the tube coupling, this feeding device includes spiral feeder 3, storage silo 4, bucket elevator 5, hopper 6 and weighing type metering tank 7 that loop through the pipeline and link to each other, the discharge gate of weighing type metering tank 7 is connected with the outer end of first inlet pipe 2 through the pipeline, inlet pipe, outlet pipe of weighing type metering tank 7 are equipped with fourth, five stop valves 13, 14 on the road respectively, the bottom of weighing type metering tank 7 is equipped with weighing sensor; when the barium hydroxide in the weighing type metering tank 7 reaches the set weight, the PLC can receive signals transmitted by the weighing sensor, automatically control the fourth stop valve 13 to be closed, and open the fifth stop valve 14 to feed the barium hydroxide.
The top of the kettle body 1 is provided with a second feeding pipe 8, and the outer end of the second feeding pipe 8 is connected to a concentrated sulfuric acid storage tank through a pipeline and a first stop valve and a first flowmeter which are sequentially arranged on the pipeline.
The top of the kettle body 1 is provided with a third feeding pipe 9, and the outer end of the third feeding pipe 9 is connected to an aminomethylbenzoic acid storage tank through a pipeline, a second stop valve and a second flowmeter which are sequentially arranged on the pipeline.
The top of the cauldron body 1 is equipped with discharging pipe 10, the inner of discharging pipe 10 extends to the bottom of the cauldron body 1, the outer end of discharging pipe 10 is connected to on the vacuum pump 12 through the pipeline with set gradually third stop valve and buffer tank 11 on this pipeline.
Preferably, a spiral material conveying rod is arranged at the bottom of the storage bin 4, and a radar level gauge 15 is arranged at the top of the storage bin 4 in a penetrating manner; the radar level gauge 15 can also be a tuning fork level gauge.
And an air particle monitor for monitoring the amount of barium hydroxide dust is arranged on the outer side of the kettle body 1.
Preferably, each stop valve is an electric stop valve, and each electric stop valve is controlled by a PLC; each stop valve can also be an electromagnetic, pneumatic, hydraulic or various linkage stop valves.
This novel reation kettle for tranexamic acid production reaches the settlement when the barium hydroxide in weighing type metering tank 7
The PLC can receive signals transmitted by the weighing sensor, automatically control the fourth stop valve 13 to be closed and open the fifth stop valve 14 to feed the barium hydroxide, so that the novel reaction kettle can automatically feed the barium hydroxide with set weight and does not generate dust pollution during feeding; simultaneously this neotype reation kettle can also carry out concentrated sulfuric acid and the ejection of compact of the feeding of aminomethylbenzoic acid and reaction solution automatically, therefore this neotype reation kettle degree of automation is high.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. The reaction kettle for producing the tranexamic acid comprises a kettle body (1), wherein a first feeding pipe (2) used for feeding barium hydroxide is arranged at the top end of the kettle body (1), and is characterized in that the outer end of the first feeding pipe (2) is connected with a feeding device through a pipeline, the feeding device comprises a spiral feeder (3), a storage bin (4), a bucket elevator (5), a hopper (6) and a weighing type metering tank (7) which are sequentially connected through the pipeline, a discharge port of the weighing type metering tank (7) is connected with the outer end of the first feeding pipe (2) through the pipeline, a fourth stop valve and a fifth stop valve (13 and 14) are respectively arranged on a feeding pipeline and a discharging pipeline of the weighing type metering tank (7), and a weighing sensor is arranged at the bottom end of the weighing type metering tank (7);
when the barium hydroxide in the weighing type metering tank (7) reaches the set weight, the PLC can receive the weighing sensor
The transmitted signal automatically controls to close the fourth stop valve (13) and open the fifth stop valve (14) to feed the barium hydroxide.
2. The reactor of claim 1, wherein: the top of the kettle body (1) is provided with a second feeding pipe (8), and the outer end of the second feeding pipe (8) is connected to the concentrated sulfuric acid storage tank through a pipeline and a first stop valve and a first flowmeter which are sequentially arranged on the pipeline.
3. The reactor of claim 1, wherein: the top of the kettle body (1) is provided with a third feeding pipe (9), and the outer end of the third feeding pipe (9) is connected to an aminomethylbenzoic acid storage tank through a pipeline and a second stop valve and a second flowmeter which are sequentially arranged on the pipeline.
4. The reactor of claim 1, wherein: the top of the cauldron body (1) is equipped with discharging pipe (10), the inner of discharging pipe (10) extends to the bottom of the cauldron body (1), the outer end of discharging pipe (10) is connected to on vacuum pump (12) through the pipeline with set gradually third stop valve and buffer tank (11) on this pipeline.
5. The reactor of claim 1, wherein: the bottom of storage silo (4) is equipped with spiral material conveying pole, radar charge level indicator (15) are worn to be equipped with at the top of storage silo (4).
6. The reactor of claim 1, wherein: and an air particle monitor for monitoring the amount of barium hydroxide dust is arranged on the outer side of the kettle body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022222109.3U CN213528596U (en) | 2020-09-30 | 2020-09-30 | Reation kettle is used in tranexamic acid production |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022222109.3U CN213528596U (en) | 2020-09-30 | 2020-09-30 | Reation kettle is used in tranexamic acid production |
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| CN213528596U true CN213528596U (en) | 2021-06-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113634213A (en) * | 2021-08-10 | 2021-11-12 | 安徽广信农化股份有限公司 | Preparation process of sulfonyl isocyanate with high conversion rate |
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2020
- 2020-09-30 CN CN202022222109.3U patent/CN213528596U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113634213A (en) * | 2021-08-10 | 2021-11-12 | 安徽广信农化股份有限公司 | Preparation process of sulfonyl isocyanate with high conversion rate |
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