CN208340679U - A kind of device of cyanamide base methyl formate continuous production - Google Patents
A kind of device of cyanamide base methyl formate continuous production Download PDFInfo
- Publication number
- CN208340679U CN208340679U CN201820651096.1U CN201820651096U CN208340679U CN 208340679 U CN208340679 U CN 208340679U CN 201820651096 U CN201820651096 U CN 201820651096U CN 208340679 U CN208340679 U CN 208340679U
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- regulating valve
- reaction kettle
- flow regulating
- raw material
- storage tank
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model belongs to chemical equipment technical field, is related to a kind of device of cyanamide base methyl formate continuous production.The device, including reaction kettle, first raw material storage tank, second raw material storage tank, circulating pump, heat exchanger, first flow regulating valve, second flow regulating valve, PLC controller, first raw material storage tank, the discharge port of second raw material storage tank is connected to the feed inlet of reaction kettle, the circulation fluid of reaction kettle exports, the tube side inlet of circulating pump and heat exchanger is sequentially communicated, the tube side liquid outlet of heat exchanger is connected to the inside of reaction kettle, first raw material storage tank, first flow regulating valve is respectively arranged between second raw material storage tank and reaction kettle, second flow regulating valve, first flow regulating valve, second flow regulating valve is communicated to connect with PLC controller respectively, first flow regulating valve and second flow regulating valve communicate to connect.Using the present apparatus, fill process is continuous, quantifies, automation, the cooling of reaction mass Rapid Circulation, high production efficiency, and production cost is low.
Description
Technical field
The utility model belongs to chemical equipment technical field, is related to a kind of dress of cyanamide base methyl formate continuous production
It sets.
Background technique
Methyl cyanocarbamate is the intermediate for synthesizing carbendazim.Prepare the process of Methyl cyanocarbamate are as follows: use lime
Aminating reaction occurs under alkaline condition, and then Methyl cyanocarbamate is made for nitrogen hydrolyzate and methylchloroformate.Traditional cyanogen ammonia
The aminating reaction device of base methyl formate uses intermittent feeding, and temperature is difficult to control in reaction process, and production efficiency is not high, in turn
Cause methylchloroformate consumption big, so that the preparation cost of product is higher.
Utility model content
The purpose of this utility model is to provide a kind of device of cyanamide base methyl formate continuous production, the process that feeds connects
Continuous quantitative, temperature effectively controls, continuous production cyanamide base methyl formate.
The technical solution of the utility model solution above-mentioned technical problem are as follows:
A kind of device of cyanamide base methyl formate continuous production, including the storage of reaction kettle, the first raw material storage tank, the second raw material
Tank, circulating pump, heat exchanger, first flow regulating valve, second flow regulating valve, PLC controller；Be provided at the top of reaction kettle into
Material mouth, the discharge port of the first raw material storage tank, the second raw material storage tank discharge port be connected to the feed inlet of reaction kettle, reaction kettle
Bottom is provided with material outlet and circulation fluid outlet, and the tube side inlet of circulation fluid outlet, circulating pump and heat exchanger successively connects
Logical, the tube side liquid outlet of heat exchanger is connected to by pipeline with the inside of reaction kettle；First raw material storage tank, the second raw material storage tank and anti-
It answers and is respectively arranged with first flow regulating valve, second flow regulating valve between kettle, first flow regulating valve, second flow regulating valve
It is communicated to connect respectively with PLC controller, first flow regulating valve and second flow regulating valve communicate to connect.
Preferably, which further includes third flow control valve, third flow control valve be set to the shell side of heat exchanger into
It is communicated to connect on liquid pipe road and with PLC controller；Further include temperature sensor, one end of temperature sensor and reaction kettle it is interior
Portion's connection, the other end and third flow control valve communicate to connect；The flow of circulating pump is 180m3/ h~240m3/h；Reaction kettle
It is internally provided with agitating paddle.
Pass through flow control valve using having the beneficial effect that for the utility model cyanamide base methyl formate continuous production device
The inventory of reaction kettle is controlled, so that fill process is continuous and quantitative；The heat released in reaction process passes through high-performance heat exchanger
Heat exchange control, so that the temperature of reaction process can be automatically controled, simultaneously, it is ensured that reaction temperature is the optimum temperature of aminating reaction；
By the way that the circulating pump of big flow is arranged, that is, it can guarantee the Rapid Circulation cooling of material, then the stirring cooperated with agitating paddle, further
Improve the effect of mixing and cooling；Flow control valve is controlled by PLC controller, realizes the automatic control of production process；Continuously
Metaplasia produces cyanamide base methyl formate, and high production efficiency saves production cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model cyanamide base methyl formate continuous production device；
Fig. 2 is the flow diagram of the utility model cyanamide base methyl formate continuous production device.
Coding in attached drawing is respectively as follows: reaction kettle 1, the first raw material storage tank 2-1, the second raw material storage tank 2-2, circulating pump 3, changes
Hot device 4, first flow regulating valve 5-1, second flow regulating valve 5-2, third flow control valve 5-3, temperature sensor 6.
Specific embodiment
As shown in Figure 1, a kind of device of cyanamide base methyl formate continuous production, including reaction kettle 1, the first raw material storage tank
2-1, the second raw material storage tank 2-2, circulating pump 3, heat exchanger 4, first flow regulating valve 5-1, second flow regulating valve 5-2, third
Flow control valve 5-3, PLC controller, temperature sensor 6, agitating paddle；The top of reaction kettle 1 is provided with feed inlet, the first raw material
The discharge port of storage tank 2-1, the second raw material storage tank 2-2 discharge port be connected to the feed inlet of reaction kettle 1, the bottom of reaction kettle 1
It is provided with material outlet and circulation fluid outlet, the tube side inlet of circulation fluid outlet, circulating pump 3 and heat exchanger 4 is sequentially communicated,
The tube side liquid outlet of heat exchanger 4 is connected to by pipeline with the inside of reaction kettle 1, and the flow of circulating pump 3 is 200m3/h；First is former
First flow regulating valve 5-1, second flow tune are respectively arranged between material storage tank 2-1, the second raw material storage tank 2-2 and reaction kettle 1
Valve 5-2 is saved, third flow control valve 5-3 is set in the shell side input duct of heat exchanger 4, first flow regulating valve 5-1, second
Flow control valve 5-2, third flow control valve 5-3 are communicated to connect with PLC controller respectively, first flow regulating valve 5-1 and the
Two flow control valve 5-2 communication connection；One end of temperature sensor 6 is connected to the inside of reaction kettle 1, the other end and third flow
Regulating valve 5-3 communication connection, agitating paddle are set to inside reaction kettle 1.
As shown in Fig. 2, the use process of the utility model cyanamide base methyl formate continuous production device are as follows: by reactant
Material lime nitrogen hydrolyzate and methylchloroformate are put into respectively into the first raw material storage tank 2-1 and the second raw material storage tank 2-2；It calculates
Simultaneously feeding quantity is arranged by PLC controller in the molar ratio of material, passes through first flow regulating valve 5-1, second flow regulating valve 5-2
Control feeding quantity；Material is put into according to the feed ratio of setting to reaction kettle 1 respectively using pump, passes through first flow regulating valve
Communication connection between 5-1, second flow regulating valve 5-2, realization are accurately put in proportion into material；It is discharged in reaction process
Heat by the way that reactant mixed liquor is recycled in the tube side of heat exchanger 4, realization cools down to the material in reaction kettle 1,
Simultaneously as the flow of circulating pump 3 is larger, it is 200m3/ h, enables material in reaction kettle 1 circulation temperature lowering in a short time,
And it is sufficiently mixed, cooperates futher stirring for agitating paddle, temperature-fall period is more rapidly, completely；The shell side inlet tube of heat exchanger 4
The third flow control valve 5-3 that is arranged on road and the temperature sensor 6 of connection is communicated with, it can be achieved that accurate in reaction process
Regulate and control the temperature in reaction kettle 1, that is, when temperature in the kettle is higher than setting value, the cooling water flow into 4 shell side of heat exchanger is corresponding
Increase；While progress with reaction, reaction product is collected by the material outlet of 1 bottom of reaction kettle.
Claims (5)
1. a kind of device of cyanamide base methyl formate continuous production, which is characterized in that stored up including reaction kettle (1), the first raw material
Tank (2-1), the second raw material storage tank (2-2), circulating pump (3), heat exchanger (4), first flow regulating valve (5-1), second flow tune
Save valve (5-2), PLC controller；
Feed inlet, the discharge port of first raw material storage tank (2-1), the storage of the second raw material are provided at the top of the reaction kettle (1)
The discharge port of tank (2-2) is connected to the feed inlet of reaction kettle (1), the bottom of the reaction kettle (1) be provided with material outlet and
The tube side inlet of circulation fluid outlet, the circulation fluid outlet, circulating pump (3) and heat exchanger (4) is sequentially communicated, the heat exchange
The tube side liquid outlet of device (4) is connected to by pipeline with the inside of reaction kettle (1)；
First flow is respectively arranged between first raw material storage tank (2-1), the second raw material storage tank (2-2) and reaction kettle (1)
Regulating valve (5-1), second flow regulating valve (5-2), the first flow regulating valve (5-1), second flow regulating valve (5-2) point
It is not communicated to connect with PLC controller, the first flow regulating valve (5-1) and second flow regulating valve (5-2) are communicated to connect.
2. a kind of device of cyanamide base methyl formate continuous production as described in claim 1, which is characterized in that further include the
Three flow control valves (5-3), the third flow control valve (5-3) be set in the shell side input duct of heat exchanger (4) and with
PLC controller communication connection.
3. a kind of device of cyanamide base methyl formate continuous production as claimed in claim 2, which is characterized in that further include temperature
It spends sensor (6), one end of the temperature sensor (6) is connected to the inside of reaction kettle (1), and the other end and third flow are adjusted
Valve (5-3) communication connection.
4. a kind of device of cyanamide base methyl formate continuous production as described in claim 1, which is characterized in that the circulation
The flow for pumping (3) is 180m3/ h~240m3/h。
5. a kind of device of cyanamide base methyl formate continuous production as described in claim 1, which is characterized in that the reaction
Kettle (1) is internally provided with agitating paddle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820651096.1U CN208340679U (en) | 2018-05-03 | 2018-05-03 | A kind of device of cyanamide base methyl formate continuous production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820651096.1U CN208340679U (en) | 2018-05-03 | 2018-05-03 | A kind of device of cyanamide base methyl formate continuous production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208340679U true CN208340679U (en) | 2019-01-08 |
Family
ID=64886807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820651096.1U Expired - Fee Related CN208340679U (en) | 2018-05-03 | 2018-05-03 | A kind of device of cyanamide base methyl formate continuous production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208340679U (en) |
-
2018
- 2018-05-03 CN CN201820651096.1U patent/CN208340679U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190108 Termination date: 20190503 |