CN203316122U - Neutralization reaction kettle - Google Patents
Neutralization reaction kettle Download PDFInfo
- Publication number
- CN203316122U CN203316122U CN2013202797692U CN201320279769U CN203316122U CN 203316122 U CN203316122 U CN 203316122U CN 2013202797692 U CN2013202797692 U CN 2013202797692U CN 201320279769 U CN201320279769 U CN 201320279769U CN 203316122 U CN203316122 U CN 203316122U
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- kettle
- neutralization reaction
- pipe
- caustic soda
- main shaft
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Abstract
The utility model relates to the field of fixed reactors, and aims at providing a neutralization reaction kettle. The neutralization reaction kettle comprises a kettle body, a main shaft and a motor, and further comprises a liquid alkali pipe, a pipeline rotating joint, a liquid alkali conveying pump and a heating device, wherein a plurality of layers of stirring paddles are arranged on the side periphery of the main shaft, the main shaft is pivoted with the kettle body, and the motor is fixedly connected with the kettle body and is in transmission connection with the main shaft; a plurality of spray pipes are arranged on the side periphery of the main shaft, a mesopore which runs through the lower end surface and is communicated with the spray pipes is formed on the main shaft, the lower end of the main shaft is connected with one end of the liquid alkali pipe through the pipeline rotating joint, the other end of the liquid alkali pipe extends out of the bottom of the kettle body and is communicated with the outlet of the liquid alkali conveying pump, the liquid alkali pipe is fixedly connected with the kettle body, a charging port is formed on the top of the kettle body, and a discharging port is formed on the bottom of the kettle body. The neutralization reaction kettle can be used for performing a thorough neutralization reaction, the residual acid value of products is low, and the consumption of the liquid alkali is small.
Description
Technical field
The utility model relates to the fixed reactor field, especially a kind of neutralization reaction still.
Background technology
Esterification, neutralization reaction and washed reaction are the important steps in environment-friendly type plasticizer production process, and esterification, neutralization reaction and washed reaction carry out usually in reactor; The disclosure of the invention of Chinese patent notification number CN 102580658A a kind of stirred autoclave, mainly comprise agitating device, the charging aperture on reaction kettle body top and the discharging opening of reaction kettle body bottom in reaction kettle body, reaction kettle body, one or more drain pipes are arranged on the reaction kettle body sidewall, drain pipe one end is positioned at reaction kettle body, the other end is through the reaction kettle body sidewall and valve is installed, and Drainage pipe is installed after valve.The a small amount of not residual terephthalic acid (TPA) of complete reaction contained in the DOTP crude product that esterification obtains, neutralization reaction is by adding a certain amount of liquid caustic soda and residual terephthalic acid (TPA) to carry out neutralization reaction, obtaining the product DOTP; And by DOTP, para-phthalic sodium and water stratification; Carry out neutralization reaction with traditional stirred autoclave, exist neutralization reaction not thorough, the product residue acid number is high, the deficiency that the liquid caustic soda consumption is large; Therefore, design a kind of neutralization reaction thorough, the product residue acid number is low, and the neutralization reaction still that the liquid caustic soda consumption is little, become problem demanding prompt solution.
The utility model content
The purpose of this utility model is to carry out neutralization reaction in order to overcome the stirred autoclave that current use is traditional, exists neutralization reaction not thorough, and the product residue acid number is high, the deficiency that the liquid caustic soda consumption is large, provide a kind of neutralization reaction thorough, the product residue acid number is low, the neutralization reaction still that the liquid caustic soda consumption is little.
Concrete technical scheme of the present utility model is:
A kind of neutralization reaction still, comprise kettle, gusset be provided with some layers of paddle and with the main shaft and the motor that is fixedly connected with and is connected with spindle drive with kettle of kettle pivot joint; Described neutralization reaction still also comprises liquid caustic soda pipe, pipeline swivel joint, liquid caustic soda delivery pump and heater; The gusset of main shaft is provided with several jet pipes; Main shaft is provided with the mesopore that connects and be communicated with jet pipe with lower surface; The lower end of main shaft is connected with an end of liquid caustic soda pipe by the pipeline swivel joint; The other end of liquid caustic soda pipe stretches out the bottom of kettle and carries delivery side of pump to be communicated with liquid caustic soda; The liquid caustic soda pipe is fixedly connected with kettle; The top of kettle is provided with charge door; The bottom of kettle is provided with drain hole.This neutralization reaction still neutralization reaction is thorough, and the product residue acid number is low, and the liquid caustic soda consumption is little.
As preferably, described several jet pipes are positioned at the downside of last layer paddle and along the gusset radial equipartition of main shaft; The upside of each jet pipe gusset is provided with at least one liquid caustic soda nozzle.Jet pipe rotates with the rotation of paddle, sprays more even; The density ratio plasticizer density of liquid caustic soda is high, and liquid caustic soda upwards sprays limit to carry out the neutralization reaction limit and progressively move down, and with the DOTP crude product, mixes and the reaction time lengthens better effects if.
As preferably, described heater comprises hotline heater, is wrapped in the kettle gusset outside the side heat pipe be fixedly connected with the gusset of kettle and the end heat pipe be fixedly connected with the bottom surface of kettle; The two ends of hotline heater are connected with an end of side heat pipe and an end of end heat pipe respectively; The other end of side heat pipe is connected with the other end of end heat pipe.Heater is simple and practical.
As preferably, heat pipe of the described end comprises outer race tube, inner ring pipe and several radially connecting legs that is uniformly distributed along the circumference and is communicated with outer race tube and inner ring pipe respectively.Have the effect of the intensity of heating and enhancing kettle bottom surface concurrently.
As preferably, described side heat pipe is semi-circular tube; End heat pipe is semi-circular tube.Heating effect is good.
As preferably, described liquid caustic soda delivery pump is measuring pump.Measuring pump is a kind of of reciprocating pump, can regulate the control flow.
The neutralization reaction method of described neutralization reaction still is characterized in that: the DOTP crude product of (1) specified quantity adds in kettle from charge door; (2) open the driven by motor paddle and stir the DOTP crude product; (3) under the state that paddle stirs and jet pipe rotates, the unlatching hotline heater, conduction oil by heating tube to the DOTP crude product heat temperature raising in kettle; (4) open the liquid caustic soda delivery pump, liquid caustic soda enters in kettle and mixes with the DOTP crude product from the jet pipe ejection through mesopore under the effect of liquid caustic soda delivery pump, until reach the regulation proportioning with the DOTP crude product; (5), when the mixed liquid temp of DOTP crude product and liquid caustic soda reaches 110 ℃, keep isothermal reaction, until neutralization reaction reaches reaction end, and stratification; (5) by drain hole, DOTP, para-phthalic sodium and water stratification are emitted.
The neutralization reaction method makes liquid caustic soda mix and react along with the rotation of paddle progressively evenly adds with the DOTP crude product, can shorten the time and the liquid caustic soda consumption that reach reaction end little.
Compared with prior art, the invention has the beneficial effects as follows: one. this neutralization reaction still neutralization reaction is thorough, and the product residue acid number is low, and the liquid caustic soda consumption is little.Two. jet pipe rotates with the rotation of paddle, sprays more even; The density ratio plasticizer density of liquid caustic soda is high, and liquid caustic soda upwards sprays limit to carry out the neutralization reaction limit and progressively move down, and with the DOTP crude product, mixes and the reaction time lengthens better effects if.Three. heater is simple and practical.Four. end heat pipe comprises outer race tube, inner ring pipe and connecting leg radially, has heating concurrently and strengthens the effect of the intensity of kettle bottom surface.Five. side heat pipe and end heat pipe are semi-circular tube, and heating effect is good.Six. measuring pump is a kind of of reciprocating pump, can regulate the control flow.
The accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is that the A of Fig. 1 is to view.
In figure: liquid caustic soda pipe-1, pipeline swivel joint-2, kettle-3, charge door-31, drain hole-32, main shaft-4, paddle-41, mesopore-42, jet pipe-5, liquid caustic soda nozzle-51, hotline heater-6, side heat pipe-7, end heat pipe-8, outer race tube-81, inner ring pipe-82, radially connecting leg-83, liquid caustic soda delivery pump-9, motor-10, decelerator-11, shaft coupling-12.
The specific embodiment
Below in conjunction with shown in accompanying drawing, the utility model is described further.
As shown in accompanying drawing 1, accompanying drawing 2: a kind of neutralization reaction still, comprise that kettle 3, gusset have three layers of paddle 41 and with kettle 3 by the main shaft 4 of bearing hinge joint and the motor 10, liquid caustic soda pipe 1, pipeline swivel joint 2, liquid caustic soda delivery pump and the heater that are connected with kettle 3 screws and are in transmission connection by decelerator 11 and shaft coupling 12 with main shaft 4; The gusset of main shaft 4 has four jet pipes 5; Main shaft 4 has the mesopore 42 that connects and be communicated with jet pipe 5 with lower surface; The lower end of main shaft 4 is connected with an end of liquid caustic soda pipe 1 by pipeline swivel joint 2; The bottom that the other end of liquid caustic soda pipe 1 stretches out kettle 3 is communicated with the outlet of liquid caustic soda delivery pump 9; Liquid caustic soda pipe 1 and kettle 3 welding; The top of kettle 3 has charge door 31; The bottom of kettle 3 has drain hole 32.
Described four jet pipes 5 are positioned at the downside of last layer paddle 41 and along the gusset radial equipartition of main shaft 4; The upside of each jet pipe 5 gusset has two liquid caustic soda nozzles 51.
Described heater comprises hotline heater 6, be wrapped in the kettle 3 gussets outsides and with the side heat pipe 7 of the gusset welding of kettle 3 and with the end heat pipe 8 of the bottom surface welding of kettle 3; The two ends of hotline heater 6 are connected with an end of side heat pipe 7 and an end of end heat pipe 8 respectively; The other end of side heat pipe 7 is connected with the other end of end heat pipe 8.
Heat pipe of the described end 8 comprises outer race tube 81, inner ring pipe 82 and six radially connecting legs 83 that are uniformly distributed along the circumference and are communicated with outer race tube 81 and inner ring pipe 82 respectively.
Described side heat pipe 7 is semi-circular tube; End heat pipe 8 is semi-circular tube.
Described liquid caustic soda delivery pump 9 is measuring pump.
The neutralization reaction method of described neutralization reaction still is characterized in that: the DOTP crude product of (1) specified quantity adds in kettle 3 from charge door 31; (2) open motor 10 and drive paddle 41 stirring DOTP crude products; (3) under the state that paddle 41 stirs and jet pipe 5 rotates, open hotline heater 6, the DOTP crude product heat temperature raising that conduction oil is interior to kettle 3 by heating tube; (4) open liquid caustic soda delivery pump 9, liquid caustic soda enters in kettle 3 and mixes with the DOTP crude product from jet pipe 5 ejections through mesopore 42 under 9 effects of liquid caustic soda delivery pump, until reach the regulation proportioning with the DOTP crude product; (5), when the mixed liquid temp of DOTP crude product and liquid caustic soda reaches 110 ℃, keep isothermal reaction, until neutralization reaction reaches reaction end, and stratification; (5) by drain hole 32, DOTP, para-phthalic sodium and water stratification are emitted.
The beneficial effects of the utility model are: this neutralization reaction still neutralization reaction is thorough, and the product residue acid number is low, and the liquid caustic soda consumption is little.Jet pipe rotates with the rotation of paddle, sprays more even; The density ratio plasticizer density of liquid caustic soda is high, and liquid caustic soda upwards sprays limit to carry out the neutralization reaction limit and progressively move down, and with the DOTP crude product, mixes and the reaction time lengthens better effects if.Heater is simple and practical.End heat pipe comprises outer race tube, inner ring pipe and connecting leg radially, has heating concurrently and strengthens the effect of the intensity of kettle bottom surface.Side heat pipe and end heat pipe are semi-circular tube, and heating effect is good.Measuring pump is a kind of of reciprocating pump, can regulate the control flow.
It is apparent to one skilled in the art that the utility model can be changed into various ways, and such change is not thought and broken away from scope of the present utility model.All so apparent modifications of the technical staff to described field, within being included in the scope of this claim.
Claims (6)
1. a neutralization reaction still, comprise kettle, gusset be provided with some layers of paddle and with the main shaft and the motor that is fixedly connected with and is connected with spindle drive with kettle of kettle pivot joint; It is characterized in that, described neutralization reaction still also comprises liquid caustic soda pipe, pipeline swivel joint, liquid caustic soda delivery pump and heater; The gusset of main shaft is provided with several jet pipes; Main shaft is provided with the mesopore that connects and be communicated with jet pipe with lower surface; The lower end of main shaft is connected with an end of liquid caustic soda pipe by the pipeline swivel joint; The other end of liquid caustic soda pipe stretches out the bottom of kettle and carries delivery side of pump to be communicated with liquid caustic soda; The liquid caustic soda pipe is fixedly connected with kettle; The top of kettle is provided with charge door; The bottom of kettle is provided with drain hole.
2. neutralization reaction still according to claim 1 is characterized in that: described several jet pipes are positioned at the downside of last layer paddle and along the gusset radial equipartition of main shaft; The upside of each jet pipe gusset is provided with at least one liquid caustic soda nozzle.
3. neutralization reaction still according to claim 1 is characterized in that: described heater comprises hotline heater, is wrapped in the kettle gusset outside the side heat pipe be fixedly connected with the gusset of kettle and the end heat pipe be fixedly connected with the bottom surface of kettle; The two ends of hotline heater are connected with an end of side heat pipe and an end of end heat pipe respectively; The other end of side heat pipe is connected with the other end of end heat pipe.
4. neutralization reaction still according to claim 3, it is characterized in that: heat pipe of the described end comprises outer race tube, inner ring pipe and several radially connecting legs that is uniformly distributed along the circumference and is communicated with outer race tube and inner ring pipe respectively.
5. according to the described neutralization reaction still of claim 3 or 4, it is characterized in that: described side heat pipe is semi-circular tube; End heat pipe is semi-circular tube.
6. according to claim 1 or 2 or 3 described neutralization reaction stills, it is characterized in that: described liquid caustic soda delivery pump is measuring pump.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202797692U CN203316122U (en) | 2013-05-20 | 2013-05-20 | Neutralization reaction kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202797692U CN203316122U (en) | 2013-05-20 | 2013-05-20 | Neutralization reaction kettle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203316122U true CN203316122U (en) | 2013-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202797692U Expired - Lifetime CN203316122U (en) | 2013-05-20 | 2013-05-20 | Neutralization reaction kettle |
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| CN (1) | CN203316122U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104128151A (en) * | 2014-07-31 | 2014-11-05 | 贵州远盛钾业科技有限公司 | Neutralization reaction kettle |
| CN104174348A (en) * | 2013-05-20 | 2014-12-03 | 宁波凯诚环保科技有限公司 | Neutralizing reaction kettle and neutralizing reaction method |
| CN110002635A (en) * | 2019-04-30 | 2019-07-12 | 宁波渤川废液处置有限公司 | Waste alkali liquor treatment device |
-
2013
- 2013-05-20 CN CN2013202797692U patent/CN203316122U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104174348A (en) * | 2013-05-20 | 2014-12-03 | 宁波凯诚环保科技有限公司 | Neutralizing reaction kettle and neutralizing reaction method |
| CN104128151A (en) * | 2014-07-31 | 2014-11-05 | 贵州远盛钾业科技有限公司 | Neutralization reaction kettle |
| CN104128151B (en) * | 2014-07-31 | 2016-05-04 | 贵州远盛钾业科技有限公司 | A kind of neutralization reaction still |
| CN110002635A (en) * | 2019-04-30 | 2019-07-12 | 宁波渤川废液处置有限公司 | Waste alkali liquor treatment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |