CN209519751U - Hydrolysis of polymaleic anhydride continuous production device - Google Patents
Hydrolysis of polymaleic anhydride continuous production device Download PDFInfo
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- CN209519751U CN209519751U CN201821601696.3U CN201821601696U CN209519751U CN 209519751 U CN209519751 U CN 209519751U CN 201821601696 U CN201821601696 U CN 201821601696U CN 209519751 U CN209519751 U CN 209519751U
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Abstract
The utility model relates to a kind of hydrolysis of polymaleic anhydride continuous production devices, belong to chemical industry equipment.The technical solution adopted is that: including mixing kettle, the connected multi-step polymerization reaction kettle of sequence, dioxygen water storage tank and insulation reaction kettle, the lower part of the mixing kettle sets out material mouth and is connect with the feed inlet of level-one polymerization reaction kettle by pipeline, the discharge port of n grades of polymerization reaction kettles connect (n is greater than or equal to 1) by pipeline with the feed inlet of n+1 grades of polymerization reaction kettles, the top of polymerization reaction kettle is arranged in the feed inlet and discharge port of each polymerization reaction kettle, and feed inlet is higher than discharge port, the discharge port of afterbody polymerization reaction kettle is connected with the feed inlet of insulation reaction kettle by pipeline, the discharge port of insulation reaction kettle leads to finished pot, the top of each polymerization reaction kettle is equipped with top discharge mouth.The present apparatus uses the stepped series connection of multi-step polymerization reaction kettle, enters next stage reaction kettle by reaction kettle side automatic overflow, realizes the continuous production of hydrolysis of polymaleic anhydride.
Description
Technical field
The utility model relates to a kind of hydrolysis of polymaleic anhydride continuous production devices, belong to chemical industry equipment.
Background technique
Hydrolyzed maleic anhydride (HPMA) is that a kind of raw material is easy to get, and function admirable, multiduty environmentally protective water treatment agent has
High thermal stability can be used at relatively high temperatures.HPMA has two kinds of effects of distortion of lattice and threshold effect, there is dispersion carbonic acid
Calcium, the efficiency of calcium phosphate crystallite and good inhibition scale generate and the old dirt effect of removing.It can be used in compounding with zinc salt, due to association
Same effect, not only there is scale effect, and there are also excellent corrosion inhibitions, nontoxic, is widely used in recirculated cooling water, boiler is used
Water, oil-field flooding, the processing of industrial water etc..
The beginning of the sixties in last century is proposed that purple can be passed through by J.Polymer.Sci. and Makromol.Chem. respectively for the first time
Outer light, which irradiates and/or causes MA by organic oxide, occurs homopolymerization, and hydrolysis of polymaleic anhydride (HPMA) is made through hydrolyzing.Previous generation
It records and is first industrialized HPMA by Ciba-Geigy company, Switzerland the beginning of the seventies, be used for cold water process as corrosion inhibiting and descaling agent,
It is applied to sea water desalination and boiler water process later, is extended to the fields such as detergent and oil field water process.China is to the poly- horse of hydrolysis
The PRODUCTION TRAITS for carrying out acid anhydrides starts from the eighties in last century, and the organic solvents such as Duo Yiru benzene, dimethylbenzene are reaction medium, utilizes peroxide
Change benzoyl initiation maleic anhydride monomer first to polymerize, then the production technology hydrolyzed.The technique production cycle is long, energy consumption is high,
Product bromine number is high, residual monomer content is high, storage is easily layered, is complicated for operation, environmental pollution is big, high production cost.With society
Development and people's environmental consciousness increasingly enhancing, with water replace organic solvent synthesis hydrolysis of polymaleic anhydride production method
Become the emphasis of people's research always.
But existing production synthesis technology at present is compared, either using organic solvent or water phase as reaction medium, pass
The production method of system mostly uses intermittent one-pot process units, and product yield is low, the production cycle is long, significantly the limitation size of capacity
It is promoted；Meanwhile the production of single kettle type device be easy to cause the unstable of quality and performance between product batches；Maleic anhydride simultaneously
Polymerization process belongs to exothermal reaction process, once reaction starts, single kettle type Batch Process is needed in the continuous water flowing of reaction kettle interlayer
Cooling, a large amount of reaction heat cannot be effectively obtained recycling, and while causing energy waste, energy consumption also be will increase.
Summary of the invention
The utility model provides a kind of hydrolysis of polymaleic anhydride continuous production device, solves to realize hydrolysis of polymaleic anhydride
Continuous production the problem of.
In order to achieve the above purposes, the technical solution adopted by the utility model is:
Hydrolysis of polymaleic anhydride continuous production device, including the connected multi-step polymerization reaction kettle of mixing kettle, sequence, dioxygen
Water storage tank and insulation reaction kettle, the lower part of the mixing kettle sets out material mouth and the feed inlet of level-one polymerization reaction kettle is connected by pipeline
It connecing, the discharge port of n grades of polymerization reaction kettles connect (n is greater than or equal to 1) by pipeline with the feed inlet of n+1 grades of polymerization reaction kettles,
The top of polymerization reaction kettle is arranged in the feed inlet and discharge port of each polymerization reaction kettle, and feed inlet is higher than discharge port, last
The discharge port of grade polymerization reaction kettle is connected with the feed inlet of insulation reaction kettle by pipeline, and the discharge port of insulation reaction kettle leads into
The top of product tank, each polymerization reaction kettle is equipped with top discharge mouth；
The top of polymerization reaction kettles at different levels is equipped with dioxygen water inlet and is connected by pipeline with dioxygen water storage tank, polymerizations at different levels
The hydrogen peroxide feed pipe of reaction kettle comes together in the discharge pipe of dioxygen water storage tank, which, which is equipped with, turns material
Pump.
Preferably, the top discharge mouth of each polymerization reaction kettle is passed through the import of shell-and-tube heat exchanger, shell by pipeline
The outlet of formula heat exchanger is passed through exhaust gas processing device；The cooling water inlet of shell-and-tube heat exchanger is passed through recirculated cooling water, and shell-and-tube changes
Recirculated cooling water is discharged the refrigerant exit of hot device；
The connected pipeline of the cooling water inlet of each shell-and-tube heat exchanger comes together in recirculated cooling water water inlet line, and each shell-and-tube changes
The connected pipeline of the cooling water outlet of hot device comes together in cooling water return pipeline.
Preferably, the feed inlet of each polymerization reaction kettle connects with discharge port and in cascade arrangement, so as to continuously enter
When the material of each reaction kettle reaches setting volume constantly automatic overflow to next stage reaction kettle.
Further preferred, the series of the polymerization reaction kettle is 4 ~ 12 grades, and reaction kettle at different levels is at 2/3 height-volume
Equipped with discharge port.
Preferably, the pipeline that the dioxygen water inlet of each polymerization reaction kettle is connected to is equipped with flowmeter and control valve.
Preferably, the connected pipeline of the discharge port of afterbody polymerization reaction kettle is equipped with transfering material pump.Preferably, mixed
Institute's connecting leg road is equipped with transfering material pump between material kettle and level-one mixing kettle.
Preferably, the mixing kettle is equipped with temperature sensor, blender, and it is equipped with heat preservation sandwich layer.
The beneficial effect of the utility model:
(1) present apparatus uses the stepped series connection of multi-step polymerization reaction kettle, under being entered by reaction kettle side automatic overflow
First order reaction kettle realizes the continuous production of hydrolysis of polymaleic anhydride；
(2) this method control easy to automate, raising production efficiency and utilization rate of equipment and installations, stable product quality；
(3) reaction heat is transferred to next order reaction in time, realizes the effective recycling of polymerization reaction heat, reduces production
Energy consumption, water conservation, safety and environmental protection.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model,
Wherein: 1, mixing kettle, 2, polymerization reaction kettle, 3, dioxygen water storage tank, 4, insulation reaction kettle, 5, shell-and-tube heat exchanger,
6, transfering material pump, 7, flowmeter, 8, control valve, 201, feed inlet, 202, discharge port, 203, top discharge mouth, 501, circulating cooling
Water water inlet line, 502, cooling water return pipeline, 503, tail gas absorption pipeline.
Specific embodiment
The specific structure of the utility model is further detailed below,
Hydrolysis of polymaleic anhydride continuous production device, including the connected multi-step polymerization reaction kettle 2 of mixing kettle 1, sequence, double
Oxygen water storage tank 3 and insulation reaction kettle 4.
Mixing kettle 1 is that the enamel still that volume is 10m3 or the stainless steel kettle for serving as a contrast tetrafluoro, mixing kettle 1 are equipped with temperature sensing
Device, blender, and it is equipped with heat preservation sandwich layer.Mixed material is maleic anhydride, catalyst, deionized water and the concentrated sulfuric acid, mass ratio
For maleic anhydride: catalyst: deionized water: the concentrated sulfuric acid=1000:0.06:500:50, the uniformly mixed material of mixing kettle keep the temperature temperature
Degree control is within the scope of 30 ~ 70 DEG C.
Polymerization reaction kettle main body be volume be 2 ~ 5m3 enamel reaction still, polymeric reaction temperature control 104 ~ 120 DEG C it
Between.Polymerization insulation still is shell structurre, is the enamel storage tank that volume is 15m3, and holding temperature is 105 ~ 108 DEG C；
The lower part of mixing kettle 1 sets out material mouth 202 and is connect with the feed inlet 201 of level-one polymerization reaction kettle 2 by pipeline, and n grades
The feed inlet 201 of discharge port 202 and n+1 grades of polymerization reaction kettles 2 at 2/3 height-volume of polymerization reaction kettle 2 is connected by pipeline
It connecing (n is greater than or equal to 1), the top of polymerization reaction kettle 2 is arranged in the feed inlet 201 and discharge port 202 of each polymerization reaction kettle 2,
And feed inlet 201 is higher than discharge port 202, the feed inlet 201 of each polymerization reaction kettle 2 is connected with discharge port 202 and is arranged in staged
Column so that when the material for continuously entering each reaction kettle reaches setting volume constantly automatic overflow to next stage polymerization reaction kettle 2.
The series of polymerization reaction kettle 2 is 4 ~ 12 grades.
The discharge port 202 of afterbody polymerization reaction kettle 2 is connected with the feed inlet 201 of insulation reaction kettle 4 by pipeline, should
Pipeline is equipped with transfering material pump.The discharge port 202 of insulation reaction kettle 4 leads to finished pot, and the top of each polymerization reaction kettle 2 is equipped with top
Discharge port 203 is used as exhaust emissions.
The top of polymerization reaction kettles 2 at different levels is equipped with dioxygen water inlet and is connected by pipeline with dioxygen water storage tank 3, Ge Jiju
The hydrogen peroxide feed pipe for closing reaction kettle 2 comes together in the discharge pipe of dioxygen water storage tank 3, which, which is equipped with, turns
Material pump.The storage tank of carbon steel, stainless steel or enamel material that hydrogen peroxide flask volume is 10m3, polymerization reaction kettles at different levels are passed through dioxygen
Water flow is successively decreased step by step.
The top discharge mouth of each polymerization reaction kettle 2 is passed through the import of shell-and-tube heat exchanger 5, shell-and-tube heat exchanger by pipeline
5 outlet is passed through tail gas absorption pipeline 503；The cooling water inlet of shell-and-tube heat exchanger 5 is passed through recirculated cooling water, shell-and-tube heat exchanger
Recirculated cooling water is discharged 5 refrigerant exit；The connected pipeline of cooling water inlet of each shell-and-tube heat exchanger 5 comes together in cold in recycling
But the connected pipeline of cooling water outlet of water water inlet line 501, each shell-and-tube heat exchanger 5 comes together in cooling water return pipeline
502.The high-temp waste gas being discharged from polymerization reaction kettle cools down through shell-and-tube heat exchanger 5, is then carrying out absorption processing, reduces
Discharge.
The pipeline that the dioxygen water inlet of each polymerization reaction kettle 2 is connected to is equipped with flowmeter and control valve.Mixing kettle 1 with
2 institute's connecting leg roads of level-one polymerization reaction kettle are equipped with transfering material pump 6.
The course of work of the present apparatus:
Mixed material is added in mixing kettle according to production procedure, then agitated and preservation and controlling, mixed material
It is input in level-one polymerization reaction kettle through transfering material pump, when determining the number series n=10 of polymerization reaction kettle setting, controls mixture
The flow that material is delivered to level-one polymerization reaction kettle is 1200 kg/h, and the discharge pipe transfering material pump of dioxygen water storage tank is defeated by hydrogen peroxide
It send to polymerization reaction kettles at different levels, passes through the flowmeter and control valve control entrance reaction kettle dioxygens at different levels on conveying dioxygen waterpipe
Water flow is respectively 117 kg/h, 102 kg/h, 90 kg/h, 80 kg/h, 70 kg/h, 60 kg/h, 54 kg/h, 45 kg/
h,33 kg/h,17 kg/h.Mixed material reacts in polymerization reaction kettle with hydrogen peroxide, on the aggregated reaction kettle of reacting rear material
Discharge port flows into next stage polymerization reaction kettle at 2/3 height-volume of portion, the secondary response again in next stage polymerization reaction kettle, such as above-mentioned
Process, the material after ten polymerization reaction kettles is delivered to the control of insulation reaction kettle inside holding through transfering material pump, until heat preservation is closed
It is transported in finished pot after lattice.
Discharge outlet at the top of the aggregated reactor tank of the exhaust gas generated in the polymerization, which enters in heat exchanger, to exchange heat, and changes
Thermal recovery uses cold water as coolant media, and exhaust gas after cooling is carrying out absorption processing, avoiding high-temp waste gas to exhaust gas absorption device
Caused by high temperature corrosion.Cooling water, which absorbs heat source in exhaust gas, to be used as the heat preservation water of each reaction kettle, save the energy, subtract
Waste is lacked.
The stepped series connection of present apparatus multi-step polymerization reaction kettle enters next order reaction by reaction kettle side automatic overflow
Kettle realizes the continuous production of hydrolysis of polymaleic anhydride；This method control easy to automate improves production efficiency and equipment
Utilization rate, stable product quality；Reaction heat is transferred to next order reaction in time, realizes effective recycling benefit of polymerization reaction heat
With, reduce production energy consumption, water conservation, safety and environmental protection.
Claims (8)
1. a kind of hydrolysis of polymaleic anhydride continuous production device, characterized in that including the connected multistage of mixing kettle (1), sequence
Polymerization reaction kettle (2), dioxygen water storage tank (3) and insulation reaction kettle (4), the lower part of the mixing kettle (1) set out material mouth (202) with
The feed inlet (201) of level-one polymerization reaction kettle (2) is connected by pipeline, the discharge port (202) and n+1 of n grades of polymerization reaction kettles (2)
The feed inlet (201) of grade polymerization reaction kettle (2) is connected by pipeline, and n is greater than or equal to 1, the feed inlet of each polymerization reaction kettle (2)
(201) with discharge port (202) setting on the top of polymerization reaction kettle (2), and feed inlet (201) is higher than discharge port (202), finally
The discharge port (202) of level-one polymerization reaction kettle (2) is connected with the feed inlet (201) of insulation reaction kettle (4) by pipeline, and heat preservation is anti-
The discharge port (202) of kettle (4) is answered to lead to finished pot, the top of each polymerization reaction kettle (2) is equipped with top discharge mouth (203)；
The top of polymerization reaction kettles (2) at different levels is equipped with dioxygen water inlet and is connected by pipeline with dioxygen water storage tank (3), Ge Jiju
The hydrogen peroxide feed pipe for closing reaction kettle (2) comes together in the discharge pipe of dioxygen water storage tank (3), sets on the hydrogen peroxide discharge pipe
There is transfering material pump.
2. hydrolysis of polymaleic anhydride continuous production device according to claim 1, characterized in that each polymerization reaction kettle
(2) top discharge mouth is passed through the import of shell-and-tube heat exchanger (5) by pipeline, and the outlet of shell-and-tube heat exchanger (5) is passed through tail
Aspiration pipeline (503)；The cooling water inlet of shell-and-tube heat exchanger (5) is passed through recirculated cooling water, the refrigerant of shell-and-tube heat exchanger (5)
Recirculated cooling water is discharged for outlet；The connected pipeline of cooling water inlet of each shell-and-tube heat exchanger (5) come together in recirculated cooling water into
The connected pipeline of cooling water outlet of waterpipe (501), each shell-and-tube heat exchanger (5) comes together in cooling water return pipeline
(502).
3. hydrolysis of polymaleic anhydride continuous production device according to claim 1, characterized in that polymerization reaction kettles at different levels
(2) feed inlet (201) connects with discharge port (202) and in cascade arrangement, so that the material for continuously entering each reaction kettle reaches
When to setting volume constantly automatic overflow to next stage polymerization reaction kettle (2).
4. according to claim 1 or the 3 hydrolysis of polymaleic anhydride continuous production devices, which is characterized in that the polymerization is anti-
The series for answering kettle (2) is 4 ~ 12 grades, and reaction kettle at different levels is equipped with discharge port (202) at 2/3 height-volume.
5. hydrolysis of polymaleic anhydride continuous production device according to claim 1, characterized in that each polymerization reaction kettle
(2) pipeline that dioxygen water inlet is connected to is equipped with flowmeter and control valve.
6. hydrolysis of polymaleic anhydride continuous production device according to claim 1, characterized in that afterbody polymerization is anti-
Discharge port (202) the connected pipeline of kettle (2) is answered to be equipped with transfering material pump.
7. hydrolysis of polymaleic anhydride continuous production device according to claim 1, characterized in that mixing kettle (1) and one
Institute's connecting leg road is equipped with transfering material pump (6) between grade polymerization reaction kettle (2).
8. hydrolysis of polymaleic anhydride continuous production device according to claim 1, which is characterized in that the mixing kettle (1)
Temperature sensor, blender are installed, and are equipped with heat preservation sandwich layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821601696.3U CN209519751U (en) | 2018-09-29 | 2018-09-29 | Hydrolysis of polymaleic anhydride continuous production device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821601696.3U CN209519751U (en) | 2018-09-29 | 2018-09-29 | Hydrolysis of polymaleic anhydride continuous production device |
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| CN209519751U true CN209519751U (en) | 2019-10-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111359573A (en) * | 2020-04-06 | 2020-07-03 | 王鑫 | Adjustable reaction kettle |
| CN112387236A (en) * | 2020-11-19 | 2021-02-23 | 安徽国祯生态科技有限公司 | Soil repairing agent granulator auxiliary assembly |
-
2018
- 2018-09-29 CN CN201821601696.3U patent/CN209519751U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111359573A (en) * | 2020-04-06 | 2020-07-03 | 王鑫 | Adjustable reaction kettle |
| CN112387236A (en) * | 2020-11-19 | 2021-02-23 | 安徽国祯生态科技有限公司 | Soil repairing agent granulator auxiliary assembly |
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Address after: No.1, Shiliquan East Road, Shizhong District, Zaozhuang City, Shandong Province 277100 Patentee after: Shandong Taihe Technology Co.,Ltd. Address before: No. 1, Shiliquan Road, Shizhong District, Zaozhuang City, Shandong Province 277100 Patentee before: SHANDONG TAIHE WATER TREATMENT TECHNOLOGIES Co.,Ltd. |