CN208292901U - A kind of device recycling dioxolane reboiling tower bottom material - Google Patents
A kind of device recycling dioxolane reboiling tower bottom material Download PDFInfo
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- CN208292901U CN208292901U CN201820649963.8U CN201820649963U CN208292901U CN 208292901 U CN208292901 U CN 208292901U CN 201820649963 U CN201820649963 U CN 201820649963U CN 208292901 U CN208292901 U CN 208292901U
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- dioxolane
- decanter
- lye
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Abstract
The utility model discloses a kind of devices for recycling dioxolane reboiling tower bottom material, thick dioxolane storage tank is connected to dioxolane reboiling tower, dioxolane reboiling top of tower gently boils tower with dioxolane and is connected to, dioxolane reboiling tower bottom is connected to the first decanter, and the first decanter is connected to the first salkali waste accumulator tank；First decanter is connected to cooler, and cooler is connected to dioxolane groove, and dioxolane groove is connected to the second discharging pump, and dioxolane groove is connected to nitrogen seal system；Second discharging pump is connected to the second decanter, and the bottom of the second decanter is provided with lye export and dioxolane outlet, is provided with gas vent at the top of the second decanter.The utility model, which stands the characteristic that can be layered using dioxolane and lye, turns waste into wealth material original discarded by the purification to reboiling tower bottom dioxolane, recycling, recycling, increases economic benefit, also reduce environmental protection pressure.
Description
Technical field
The utility model belongs to chemical products production technical field, and in particular to a kind of recycling dioxolane reboiling tower bottom
The device of material.
Background technique
In dioxolane production process, reboiling tower bottom sub-fraction dioxolane can form azeotropic mixture with water, the bottom of from
Portion follows the higher lye of PH to enter salkali waste accumulator tank, drains into Sewage Disposal, causes material waste.Not only affect dioxy five
The yield of ring increases production system comprehensive energy consumption, and increases the operating pressure of Sewage Disposal, improves sewage treatment
Cost and resource, the energy consumption.
Utility model content
In order to solve to cause material waste in dioxolane production process and increase sewage treatment burden and processing difficulty
The problem of, the utility model provides a kind of device for recycling dioxolane reboiling tower bottom material.
The purpose of this utility model is achieved in that
A kind of device recycling dioxolane reboiling tower bottom material, including thick dioxolane storage tank, thick dioxolane storage
The discharge port of slot is connected to the feed inlet of dioxolane reboiling tower, and dioxolane reboiling top of tower is connected to condenser, condenser
It is connected to groove, groove gently boils tower with dioxolane and is connected to, and the feed inlet of dioxolane reboiling tower bottom and the first discharging pump connects
Logical, the discharge port of the first discharging pump is connected to the feed inlet of the first decanter, and the bottom discharge port of the first decanter is useless with first
The feed inlet of alkali collection slot is connected to；
The top discharge mouth of first decanter is connected to the feed inlet of cooler A, the discharge port and cooler B of cooler A
Feed inlet connection, the discharge port of cooler B is connected to the feed inlet of dioxolane groove, the discharge port of dioxolane groove and
The feed inlet of second discharging pump is connected to, and dioxolane groove is connected to nitrogen seal system；
The discharge port of second discharging pump is connected to the feed inlet of the second decanter, and the feed pipe of the second decanter is inserted into
Liquid level in second decanter is hereinafter, extend to the second decanter bottom；
The bottom of second decanter is provided with lye export and dioxolane outlet, and lye export is discharged by the second lye
Pipeline is connected to the feed inlet of lye discharging pump, and the discharge port of lye discharging pump is connected to the feed inlet of the second salkali waste accumulator tank；
Dioxolane outlet is connected to by the second dioxolane discharge pipe with the feed inlet of dioxolane discharging pump, dioxolane discharging
The discharge port of pump is connected to the feed inlet of thick dioxolane storage tank；The discharge port of feed pipe and the lye of the second decanter bottom go out
Slot Internal baffle is provided between mouthful；
Gas vent is provided at the top of second decanter, gas vent passes through gas transmission pipeline and dioxolane water seal
The air inlet of slot is connected to, and the gas outlet at the top of dioxolane water sealed tank is connected to exhaust gas eluting column, at the top of dioxolane water sealed tank
It is also connected to desalination water pot, dioxolane water seal trench bottom is connected to sewage treatment tank.
It is connected between the cooler A and dioxolane groove by gas-liquid equilibrium pipe.
The bottom discharge port of first decanter passes through the charging of the first lye discharge pipe and the first salkali waste accumulator tank
Mouth is connected to, and the first pneumatic control valve is provided on the first lye discharge pipe, and the top discharge mouth of the first decanter passes through first
Dioxolane discharge pipe is connected to the feed inlet of cooler A, and the second pneumatic tune is provided on the first dioxolane discharge pipe
Valve is saved, the outside of the first decanter is provided with the first interface liquid level gauge.
The outside of second decanter is provided with liquidometer, is provided with third on the second lye discharge pipe and pneumatically adjusts
Valve is provided with the 4th pneumatic control valve on the second dioxolane discharge pipe.
The outside of second decanter is provided with second contact surface liquidometer, is provided with third on the second lye discharge pipe
Pneumatic control valve is provided with the 4th pneumatic control valve on the second dioxolane discharge pipe.
In order to reduce the material waste in dioxolane production process, the yield of dioxolane product is improved, production is reduced
System comprehensive energy consumption, and the burden and difficulty of sewage treatment are reduced, the utility model provides a kind of recycling dioxolane weight
The device for boiling tower bottom material stands the characteristic that can be layered using dioxolane and lye, by reboiling tower bottom dioxy five
Material original discarded is turned waste into wealth, increases economic benefit by the purification of ring, recycling, recycling, also reduces environmentally friendly pressure
Power.
By using recycling dioxolane reboiling tower bottom material device provided by the utility model, stable life is realized
It produces, energy-saving and cost efficiency purpose, under the situation for not increasing energy consumption, 0.25 ton of dioxolane can be recycled daily, often
Year increases by 75 tons of dioxolane yield, increases nearly 800,000 yuan of economic benefit, reduces more than 60 ten thousand yuan of sewage treatment expense every year, every year
Increase more than 140 ten thousand yuan of economic benefit in total.Use recycling dioxolane reboiling tower bottom material device provided by the utility model
Afterwards, the yield for not only improving dioxolane, reduces production system comprehensive energy consumption, and reduce the burden and difficulty of sewage treatment
Degree, avoids the risk of environmentally friendly accident, improves the produce load of overall apparatus, be of great significance to entire production system.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of the first decanter.
Fig. 3 is the structural schematic diagram of the second decanter.
Wherein, 1 is thick dioxolane storage tank；2 be dioxolane reboiling tower；3 be that dioxolane gently boils tower；4 be first to go out
Material pump；5 be the first decanter；6 be the first interface liquid level gauge；7 be the first salkali waste accumulator tank；8 be cooler A；9 be cooler B；
10 be dioxolane groove；11 be nitrogen seal system；12 be gas-liquid equilibrium pipe；13 be the second discharging pump；14 be the second decanter；15
It is liquidometer；16 be second contact surface liquidometer；17 be slot Internal baffle；18 be lye discharging pump；19 be the second salkali waste accumulator tank；20
It is dioxolane discharging pump；21 be dioxolane water sealed tank；22 be desalination water pot；23 be exhaust gas eluting column；24 be sewage treatment
Slot；25 be feed pipe；26 be the second lye discharge pipe；27 be the second dioxolane discharge pipe；28 be gas transmission pipeline；
29 be the first lye discharge pipe；30 be the first pneumatic control valve；31 be the first dioxolane discharge pipe；32 be second pneumatic
Regulating valve；33 be third pneumatic control valve；34 be the 4th pneumatic control valve.
Specific embodiment
As shown in Figure 1-3, a kind of device for recycling dioxolane reboiling tower bottom material, including thick dioxolane storage tank 1,
The discharge port of thick dioxolane storage tank 1 is connected to the feed inlet of dioxolane reboiling tower 2, at the top of dioxolane reboiling tower 2 with it is cold
Condenser connection, condenser are connected to groove, and groove gently boils tower 3 with dioxolane and is connected to, 2 bottom of dioxolane reboiling tower and first
The feed inlet of discharging pump 4 is connected to, and the discharge port of the first discharging pump 4 is connected to the feed inlet of the first decanter 5, the first decanter 5
Bottom discharge port be connected to the feed inlet of the first salkali waste accumulator tank 7；
The top discharge mouth of first decanter 5 is connected to the feed inlet of cooler A8, the discharge port of cooler A8 and cooling
The feed inlet of device B9 is connected to, and the discharge port of cooler B9 is connected to the feed inlet of dioxolane groove 10, dioxolane groove 10
Discharge port be connected to the feed inlet of the second discharging pump 13, dioxolane groove 10 is connected to nitrogen seal system 11；
The discharge port of second discharging pump 13 is connected to the feed inlet of the second decanter 14, and the feed pipe of the second decanter 14
25 liquid levels being inserted into the second decanter 14 are hereinafter, extend to 14 bottom of the second decanter；
The bottom of second decanter 14 is provided with lye export and dioxolane outlet, and lye export is gone out by the second lye
Pipe material 26 is connected to the feed inlet of lye discharging pump 18, the discharge port of lye discharging pump 18 and the second salkali waste accumulator tank 19 into
Material mouth connection；Dioxolane outlet is connected by the feed inlet of the second dioxolane discharge pipe 27 and dioxolane discharging pump 20
Logical, the discharge port of dioxolane discharging pump 20 is connected to the feed inlet of thick dioxolane storage tank 1；The discharge port of feed pipe 25 and
Slot Internal baffle 17 is provided between the lye export of two decanters, 14 bottom；
Liquid level that feed pipe 25 is inserted directly into the second decanter 14 hereinafter, extend to 14 bottom of the second decanter, be for
It prevents from destroying the lye being layered in second decanter 14 into the lye of the second decanter 14 and the mixed liquor of dioxolane
With the interface of dioxolane；Gear in slot is set between the lye export of 14 bottom of the discharge port of feed pipe 25 and the second decanter
Plate 17 is just to be discharged in order to prevent into the mixed liquor of the lye of the second decanter 14 and dioxolane by lye before layering
Pump 18 is taken away.
The top of second decanter 14 is provided with gas vent, and gas vent passes through gas transmission pipeline 28 and dioxolane
The air inlet of water sealed tank 21 is connected to, and the gas outlet at 21 top of dioxolane water sealed tank is connected to exhaust gas eluting column 23, dioxolane
21 top of water sealed tank is also connected to desalination water pot 22, and 21 bottom of dioxolane water sealed tank is connected to sewage treatment tank 24.
It is connected between cooler A8 and dioxolane groove 10 by gas-liquid equilibrium pipe 12.
The bottom discharge port of first decanter 5 passes through the charging of the first lye discharge pipe 29 and the first salkali waste accumulator tank 7
Mouth is connected to, and is provided with the first pneumatic control valve 30 on the first lye discharge pipe 29, the top discharge mouth of the first decanter 5 passes through
First dioxolane discharge pipe 31 is connected to the feed inlet of cooler A8, and is provided on the first dioxolane discharge pipe 31
Two pneumatic control valves 32, the outside of the first decanter 5 are provided with the first interface liquid level gauge 6.
The outside of second decanter 14 is provided with liquidometer 15, is provided with third on the second lye discharge pipe 26 and pneumatically adjusts
Valve 33 is saved, is provided with the 4th pneumatic control valve 34 on the second dioxolane discharge pipe 27.
The outside of second decanter 14 is provided with second contact surface liquidometer 16, is arranged on the second lye discharge pipe 26
There is third pneumatic control valve 33, is provided with the 4th pneumatic control valve 34 on the second dioxolane discharge pipe 27.
Utilize the process flow of above-mentioned apparatus recycling dioxolane reboiling tower bottom material, the specific steps are as follows:
1. the thick dioxolane in thick dioxolane storage tank 1 enters in dioxolane reboiling tower 2, dioxolane reboiling tower 2
Interior thick dioxolane under the action of steam, adopt at the top of dioxolane reboiling tower 2 by the dioxolane of most high-purities
Out, groove storage is gone to after condensation, the dioxolane in groove goes to dioxolane and gently boils tower 3；Dioxolane reboiling tower 2
The lye of tower bottom and the mixed liquor (dioxolane mass fraction is about 10%) of dioxolane enter first by the first discharging pump 4
In decanter 5；
2. the mixed liquor of the lye and dioxolane that enter the first decanter 5 slowly separates in the first decanter 5, lower layer
Lye along the first lye discharge pipe 29 enter the first salkali waste accumulator tank 7；The high-purity dioxolane on upper layer and mixing for lye
It closes liquid (lye content is seldom) and is cooled down along the first dioxolane discharge pipe 31 into cooler A8 and cooler B9
Afterwards, into dioxolane groove 10；
3. the dioxolane in dioxolane groove 10 under the protection of the nitrogen in nitrogen seal system 11, guarantees dioxolane
It will not be oxidized, meanwhile, under the action of nitrogen seal system 11 and gas-liquid equilibrium pipe 12, keep the pressure in dioxolane groove 10
Stablize；
4. the mixed liquor of high-purity dioxolane and lye in dioxolane groove 10 is conveyed by the second discharging pump 13
To the second decanter 14, secondary clearing, upper layer are dioxolane again in the second decanter 14 for high-purity dioxolane and lye, under
Layer is lye；
5. lower layer's lye enters lye discharging pump 18, lye discharging along the second lye discharge pipe 26 in the second decanter 14
Lower layer's lye is delivered in the second salkali waste accumulator tank 19 by pump 18；Upper layer dioxolane passes through the second dioxy in second decanter 14
Five rings discharge pipe 27 enters dioxolane discharging pump 20, and upper layer dioxolane is delivered to thick dioxy by dioxolane discharging pump 20
In five rings storage tank 1；
6. the dioxolane to volatilize in the second decanter 14 enters in dioxolane water sealed tank 21, by the washing of desalted water
And absorption, the waste liquid containing denier dioxolane enter in sewage treatment tank 24 from 21 bottom of dioxolane water sealed tank, are free of
The exhaust gas of dioxolane enters in exhaust gas eluting column 23 from the top of dioxolane water sealed tank 21, after washing again, is delivered to
Burn workshop section becomes the gas of emission compliance, is discharged into atmosphere by the processing again of burning.
Step 2. in, in the first decanter 5 layering interfaces of lye and dioxolane pass through the first interface liquid level gauge 6 show
Out, when the layering interfaces of the first interface liquid level gauge 6 display are more than the peak at setting interface, increase the first pneumatic control valve
30 aperture reduces the aperture of the second pneumatic control valve 32, is reduced to setting to adjust the layering interfaces of lye and dioxolane
Then the aperture of first pneumatic control valve 30 and the second pneumatic control valve 32 is restored to home position by the optimum value at interface；When
When the layering interfaces of first interface liquid level gauge 6 display are lower than the minimum for setting interface, reduce opening for the first pneumatic control valve 30
Degree increases the aperture of the second pneumatic control valve 32, is increased to setting interface to adjust the layering interfaces of lye and dioxolane
Then the aperture of first pneumatic control valve 30 and the second pneumatic control valve 32 is restored to home position by optimum value.
Step 4. in, total liquid level in the second decanter 14 is shown by liquidometer 15, has both prevented total liquid level
It is excessively high that a large amount of dioxolanes is caused to enter dioxolane water sealed tank 21 from top gas pipeline, and prevent total liquid level is too low from leading to two
Oxygen five rings discharging pump 20 is pumped into gas；If total liquid level is higher than the peak of setting, increase third pneumatic control valve 33 and the 4th gas
The aperture of dynamic regulating valve 34, to adjust the optimum value that total liquid level is reduced to setting height, then by 33 He of third pneumatic control valve
The aperture of 4th pneumatic control valve 34 is restored to home position；If total liquid level reduces third and pneumatically adjusts lower than the minimum of setting
The aperture for saving valve 33 and the 4th pneumatic control valve 34, to adjust the optimum value that total liquid level is increased to setting height, then by third
The aperture of pneumatic control valve 33 and the 4th pneumatic control valve 34 is restored to home position.
Step 5. in, the layering interfaces of lye and dioxolane in the second decanter 14 pass through second contact surface liquidometer 16
It shows, when the layering interfaces that second contact surface liquidometer 16 is shown are more than the peak at setting interface, it is pneumatic to increase third
The aperture of regulating valve 33 reduces the aperture of the 4th pneumatic control valve 34, is reduced with adjusting the layering interfaces of lye and dioxolane
To the optimum value at setting interface, the aperture of third pneumatic control valve 33 and the 4th pneumatic control valve 34 is then restored to raw bits
It sets；When minimum of the layering interfaces that second contact surface liquidometer 16 is shown lower than setting interface, reduce third pneumatic control valve
33 aperture increases the aperture of the 4th pneumatic control valve 34, is increased to setting to adjust the layering interfaces of lye and dioxolane
Then the aperture of third pneumatic control valve 33 and the 4th pneumatic control valve 34 is restored to home position by the optimum value at interface；Both
It is sent to thick dioxolane storage tank 1 after preventing layering interfaces are excessively high from lye being caused to enter dioxolane discharging pump 20, it is caused
Pollution, and prevent layering interfaces are too low from causing dioxolane to be taken away by lye discharging pump 18 to send to salkali waste accumulator tank 19, cause wave
Take.
Cooler A8 and cooler B9 is commercially available shell-and-tube heat exchanger.
Above-described is only preferred embodiments of the present invention, it is noted that for those skilled in the art
For, under the premise of not departing from the utility model general idea, several changes and improvements can also be made, these also should be considered as
The protection scope of the utility model.
Claims (5)
1. a kind of device for recycling dioxolane reboiling tower bottom material, it is characterised in that: including thick dioxolane storage tank (1),
The discharge port of thick dioxolane storage tank (1) is connected to the feed inlet of dioxolane reboiling tower (2), dioxolane reboiling tower (2) top
Portion is connected to condenser, and condenser is connected to groove, and groove gently boils tower (3) with dioxolane and is connected to, dioxolane reboiling tower (2)
Bottom is connected to the feed inlet of the first discharging pump (4), the discharge port of the first discharging pump (4) and the feed inlet of the first decanter (5)
Connection, the bottom discharge port of the first decanter (5) are connected to the feed inlet of the first salkali waste accumulator tank (7)；
The top discharge mouth of first decanter (5) is connected to the feed inlet of cooler A(8), cooler A(8) discharge port with it is cold
But device B(9) feed inlet connection, cooler B(9) discharge port be connected to the feed inlet of dioxolane groove (10), dioxy five
The discharge port of ring groove (10) is connected to the feed inlet of the second discharging pump (13), dioxolane groove (10) and nitrogen seal system (11)
Connection；
The discharge port of second discharging pump (13) is connected to the feed inlet of the second decanter (14), and the charging of the second decanter (14)
The liquid level that pipe (25) is inserted into the second decanter (14) is hereinafter, extend to the second decanter (14) bottom；
The bottom of second decanter (14) is provided with lye export and dioxolane outlet, and lye export is discharged by the second lye
Pipeline (26) is connected to the feed inlet of lye discharging pump (18), the discharge port of lye discharging pump (18) and the second salkali waste accumulator tank
(19) feed inlet connection；Dioxolane outlet passes through the second dioxolane discharge pipe (27) and dioxolane discharging pump (20)
Feed inlet connection, the discharge port of dioxolane discharging pump (20) is connected to the feed inlet of thick dioxolane storage tank (1)；Feed pipe
(25) slot Internal baffle (17) are provided between the lye export of discharge port and the second decanter (14) bottom；
Gas vent is provided at the top of second decanter (14), gas vent passes through gas transmission pipeline (28) and dioxolane
The air inlet of water sealed tank (21) is connected to, and the gas outlet at the top of dioxolane water sealed tank (21) is connected to exhaust gas eluting column (23), and two
It is also connected to desalination water pot (22) at the top of oxygen five rings water sealed tank (21), dioxolane water sealed tank (21) bottom and sewage treatment tank
(24) it is connected to.
2. the device of recycling dioxolane reboiling tower bottom material according to claim 1, it is characterised in that: the cooling
Device A(8) and dioxolane groove (10) between by gas-liquid equilibrium pipe (12) be connected to.
3. the device of recycling dioxolane reboiling tower bottom material according to claim 1, it is characterised in that: described first
The bottom discharge port of decanter (5) is connected to by the first lye discharge pipe (29) with the feed inlet of the first salkali waste accumulator tank (7),
It is provided with the first pneumatic control valve (30) on first lye discharge pipe (29), the top discharge mouth of the first decanter (5) passes through
First dioxolane discharge pipe (31) is connected to the feed inlet of cooler A(8), is set on the first dioxolane discharge pipe (31)
It is equipped with the second pneumatic control valve (32), the outside of the first decanter (5) is provided with the first interface liquid level gauge (6).
4. the device of recycling dioxolane reboiling tower bottom material according to claim 1, it is characterised in that: described second
The outside of decanter (14) is provided with liquidometer (15), is provided with third pneumatic control valve on the second lye discharge pipe (26)
(33), the 4th pneumatic control valve (34) is provided on the second dioxolane discharge pipe (27).
5. the device of recycling dioxolane reboiling tower bottom material according to claim 1, it is characterised in that: described second
The outside of decanter (14) is provided with second contact surface liquidometer (16), and it is pneumatic to be provided with third on the second lye discharge pipe (26)
Regulating valve (33) is provided with the 4th pneumatic control valve (34) on the second dioxolane discharge pipe (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820649963.8U CN208292901U (en) | 2018-05-03 | 2018-05-03 | A kind of device recycling dioxolane reboiling tower bottom material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820649963.8U CN208292901U (en) | 2018-05-03 | 2018-05-03 | A kind of device recycling dioxolane reboiling tower bottom material |
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| CN208292901U true CN208292901U (en) | 2018-12-28 |
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| CN201820649963.8U Active CN208292901U (en) | 2018-05-03 | 2018-05-03 | A kind of device recycling dioxolane reboiling tower bottom material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108516968A (en) * | 2018-05-03 | 2018-09-11 | 开封龙宇化工有限公司 | It is a kind of recycling dioxolane reboiling tower bottom material device and technological process |
-
2018
- 2018-05-03 CN CN201820649963.8U patent/CN208292901U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108516968A (en) * | 2018-05-03 | 2018-09-11 | 开封龙宇化工有限公司 | It is a kind of recycling dioxolane reboiling tower bottom material device and technological process |
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