CN202983254U - Dichloroethane distilling apparatus - Google Patents
Dichloroethane distilling apparatus Download PDFInfo
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- CN202983254U CN202983254U CN 201220703296 CN201220703296U CN202983254U CN 202983254 U CN202983254 U CN 202983254U CN 201220703296 CN201220703296 CN 201220703296 CN 201220703296 U CN201220703296 U CN 201220703296U CN 202983254 U CN202983254 U CN 202983254U
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Abstract
The utility model relates to a dichloroethane distilling apparatus. The dichloroethane distilling apparatus comprises a distillation still, a condenser, a liquid accumulator, a receiving tank I and a receiving tank II, wherein the condenser is arranged between the distillation still and the liquid accumulator by a pipeline, a liquid accumulator liquidometer is arranged on the liquid accumulator, the condenser and the liquid accumulator are connected by adopting a pipeline, a reflux valve is arranged on the pipeline between the condenser and the liquid accumulator, a balance pipe and a devacuumizing pipe are arranged at the top of the liquid accumulator, two liquid dividing valves are arranged at the bottom of the liquid accumulator, an overflow pipe is extended between the two valves and connected with one of the balance pipes, a visible cup convenient to observe the liquid in the pipeline is arranged on the pipeline through which the two liquid dividing valves are arranged at the bottom of the liquid accumulator, the pipe which is provided with the visible cup is divided into two branches, one branch is provided with the collecting valve and then connected with the receiving tank I, and the other branch is provided with a liquid outlet valve and then connected with the receiving tank II. According to the dichloroethane distilling apparatus, the operation difficulty of dividing water while distilling can be solved; and the dichloroethane distilling apparatus is applicable to other devices needing distillation and water division.
Description
Technical field
The utility model relates to a kind of device, relates in particular to a kind of dichloroethanes distilling apparatus that has solved the operation problem that divides water while distilling.
Background technology
Many product needed are dissolved and purification with organic solvent in chemical products are produced, and these production technologies often produce the waste water that contains in a large number organic solvent, generally need to reclaim the organic solvent in waste water.Batch fractionating is a kind for the treatment of technology that is widely used, and general technology and equipment are constructed as follows: after stoste (waste water that contains organic solvent) added the destilling tower azeotropic distillation, through condenser condenses, a part of feed back, rest materials was plucked out of.This technique is widely used in practice, but feed back than bad control, the reaction time is long, energy consumption is larger, and due to feed back, causes in waste water removal of solvents not thorough, the rate of recovery is lower.
The utility model content
For the problems referred to above, main purpose of the present utility model is to provide a kind of dichloroethanes distilling apparatus that has solved the operation problem that divides water while distilling.
the utility model solves above-mentioned technical problem by following technical proposals: a kind of dichloroethanes distilling apparatus, described dichloroethanes distilling apparatus comprises distillation still, condenser, liquid storage device, dump tank I and dump tank II, described condenser is arranged between distillation still and liquid storage device by pipeline, the liquid storage device liquid level gauge is installed on described liquid storage device, adopt pipeline to connect between described condenser and liquid storage device, on pipeline between condenser and liquid storage device, return valve is installed, the top of described liquid storage device is equipped with balance pipe and removes vacuum tube, the bottom of described liquid storage device is equipped with two separatory valves, stretch out a discharger between two valves, one that tells on described discharger and balance pipe is connected, the bottom of liquid storage device is equipped with and first of liquid in convenient observation pipeline is installed on the pipeline of two liquid separatnig valve valves looks cup, the first pipeline of looking cup is installed is divided into two, wherein be equipped with on one and connect dump tank I after collecting valve, after being installed on another, liquid valve connects dump tank II, dump tank II bottom is equipped with second and looks cup and liquid discharge valve, dump tank II liquid level gauge is installed on dump tank II, dump tank II top is equipped with evacuated tube, exhaust-valve is installed on evacuated tube, feed pipe and vavuum pump also are installed on described distillation still, vacuum valve is installed on vavuum pump.
In specific embodiment of the utility model, demister is installed also between described distillation still and condenser.
In specific embodiment of the utility model, all pipelines are the pipeline of stainless steel, and connected mode is steel flange and connects.
In specific embodiment of the utility model, the ratio of the volume of the water yield that steams in the volume of described liquid storage device and distillation still is greater than 4:1.
In specific embodiment of the utility model, described distillation still is that volume is the enamel distillation still of 5000L, and condenser is that surface area is 30M
2Stainless steel condenser, liquid storage device is that volume is the stainless steel liquid storage device of 250L, dump tank I and dump tank II are the enamelled vessel that volume is 2000L.
In specific embodiment of the utility model, be provided with liquid barrier in described liquid storage device.
Positive progressive effect of the present utility model is: the utility model has solved the operation problem that divides water while distilling; Need the device of esterification applicable to other.
Description of drawings
Fig. 1 is the structural representation of device of the present utility model.
Fig. 2 is the structural representation of liquid storage device of the present utility model.
The specific embodiment
Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.
Fig. 1 is the structural representation of device of the present utility model, as shown in Figure 1: the utility model comprises distillation still 1, condenser 2, liquid storage device 3, dump tank I4 and dump tank II5, condenser 2 is arranged between distillation still 1 and liquid storage device 3 by pipeline, liquid storage device liquid level gauge 6 is installed on liquid storage device 3, adopt pipeline to connect between condenser and liquid storage device, return valve 7 is installed on the pipeline between condenser and liquid storage device, the top of liquid storage device 3 is equipped with balance pipe 8 and removes vacuum tube 9, the bottom of liquid storage device 3 is equipped with two separatory valves, stretch out a discharger 10 between two valves, one that tells on discharger 10 and balance pipe 8 is connected, the bottom of liquid storage device 3 is equipped with and first of liquid in convenient observation pipeline is installed on the pipeline of two liquid separatnig valve valves looks cup 11, the first pipeline of looking cup 11 is installed is divided into two, wherein be equipped with on one and collect the rear connection dump tank of valve 12 I4, the rear connection dump tank of liquid valve 13 II5 is installed on another, dump tank II5 bottom is equipped with second and looks cup 14 and liquid discharge valve 15, dump tank II liquid level gauge 16 is installed on dump tank II5, dump tank II5 top is equipped with evacuated tube 17, exhaust-valve 18 is installed on evacuated tube 17, feed pipe and vavuum pump 19 also are installed on distillation still 1, on vavuum pump 19, vacuum valve are installed.
Foam for the liquid that distills out in filtering distillation still better 1 also is equipped with demister 20 between distillation still 1 and condenser 2.
Above-mentioned all pipelines are the pipeline of stainless steel, and connected mode is steel flange and connects.
In specific embodiment of the present utility model, distillation still is that volume is the enamel distillation still of 5000L, and condenser is that surface area is 30M
2Stainless steel condenser, liquid storage device is that volume is the stainless steel liquid storage device of 250L, dump tank I and dump tank II are the enamelled vessel that volume is 2000L.
Fig. 2 is the structural representation of liquid storage device of the present utility model, as shown in Figure 2: in the utility model, be provided with liquid barrier 21 in liquid storage device 3, above-mentioned liquid barrier 21 is installed on the pipeline of the liquid in condenser 2 enters liquid storage device 3, in still-process, water and dichloroethanes AUTOMATIC ZONING in liquid storage device, water is on the upper strata, dichloroethanes locates to be layering place in lower floor as " A " in Fig. 2, also is equipped with one on liquid storage device 3 and removes vacuum tube 9.
The esterification principle:
The purpose of distillation is the solvent dichloroethanes in organic phase to be steamed remove under reduced pressure.But steam in the process of removing at dichloroethanes, the moisture in organic phase can be taken out of in the lump, and the dichloroethanes reuse has certain requirement to moisture.Therefore need divide the water operation in still-process, reach requirement to guarantee the dichloroethanes moisture content that dump tank is collected.
A kind of technique of utilizing above-mentioned device distillation dichloroethanes, described technique comprises the steps:
The solvent that contains dichloroethanes that adds the needs distillation in the distillation still after charging is complete, is opened and is stirred, and drives the vavuum pump of distillation still, opens the vacuum valve on vavuum pump, control vacuum in described distillation still-0.085 ~-0.1Mpa between;
Open the freezing turnover valve on condenser, open the Steam Heating valve on distillation still, open the steam exhaust-gas valve on distillation still, control the Steam Heating valve opening, make Steam pressure control in distillation still at 0.15MPa ~ 0.25MPa, carry out decompression distillation; Temperature fast rise in distillation still, dichloroethanes namely begin to steam;
The dichloroethanes that steams first is collected in liquid storage device; Two shunt valves cut out this moment, liquid level arrival certain position when liquid storage device, this position is determined by the discharger height, keeps in principle dynamic equilibrium, water and dichloroethanes AUTOMATIC ZONING in liquid storage device, water is on the upper strata, dichloroethanes is opened two liquid separatnig valve valves of liquid storage device bottom in lower floor, opens the collection valve on dump tank I, collect dichloroethanes, whole still-process temperature is controlled at 20 ~ 65 ℃;
When vapo(u)rizing temperature is controlled at 65 ℃ and when not going out cut, distillation finishes, first close two liquid separatnig valve valves of liquid storage device bottom and Steam Heating valve, the steam exhaust-gas valve of distillation still, close again the freezing turnover valve of condenser, close at last the vacuum valve of distillation still, close the vavuum pump of distillation still, open the emptying valve of installing on distillation still;
When returning to malleation etc. the distillation still internal pressure, close the collection valve on dump tank I, two liquid separatnig valve valves opening liquid storage device bottom with liquid in liquid storage device by looking the cup layering; Lower floor's organic phase is assigned to dichloroethanes dump tank I; Organic phase has been closed the collection valve after dividing well, and opening liquid valve divides waste water to dump tank II; After having divided, waste water closes liquid valve.
The ratio of the volume of the water yield that steams in the volume of liquid storage device and distillation still is greater than 4:1, to guarantee that water can not enter dump tank from discharger.In the dichloroethanes still-process, carry part water out.If each moisture is 50L, liquid storage device volume settings 300L.During in the 250L left and right, open return valve (having liquid level gauge to show) when the liquid storage device liquid level, it is fixed that the valve flow size is come by liquid level.Or keep liquid level constant, or float at 250 ~ 150L.Reflux and finish the closing volume valve, open liquid valve, flow is identical by refluxing.Distillation separates with water the liquid storage device dichloroethanes after finishing by looking cup, carry out half an hour after end time.
The utility model has solved the operation problem that divides water while distilling; Need the device of esterification applicable to other.
Above demonstration and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. dichloroethanes distilling apparatus, described dichloroethanes distilling apparatus comprises distillation still, condenser, liquid storage device, dump tank I and dump tank II, it is characterized in that: described condenser is arranged between distillation still and liquid storage device by pipeline, the liquid storage device liquid level gauge is installed on described liquid storage device, adopt pipeline to connect between described condenser and liquid storage device, on pipeline between condenser and liquid storage device, return valve is installed, the top of described liquid storage device is equipped with balance pipe and removes vacuum tube, the bottom of described liquid storage device is equipped with two separatory valves, stretch out a discharger between two valves, one that tells on described discharger and balance pipe is connected, the bottom of liquid storage device is equipped with and first of liquid in convenient observation pipeline is installed on the pipeline of two liquid separatnig valve valves looks cup, the first pipeline of looking cup is installed is divided into two, wherein be equipped with on one and connect dump tank I after collecting valve, after being installed on another, liquid valve connects dump tank II, dump tank II bottom is equipped with second and looks cup and liquid discharge valve, dump tank II liquid level gauge is installed on dump tank II, dump tank II top is equipped with evacuated tube, exhaust-valve is installed on evacuated tube, feed pipe and vavuum pump also are installed on described distillation still, vacuum valve is installed on vavuum pump.
2. dichloroethanes distilling apparatus according to claim 1, is characterized in that: demister also is installed between described distillation still and condenser.
3. dichloroethanes distilling apparatus according to claim 1, it is characterized in that: all pipelines are the pipeline of stainless steel, and connected mode is steel flange and connects.
4. dichloroethanes distilling apparatus according to claim 1 is characterized in that: the ratio of the volume of the water yield that steams in the volume of described liquid storage device and distillation still is greater than 4:1.
5. dichloroethanes distilling apparatus according to claim 1, it is characterized in that: described distillation still is that volume is the enamel distillation still of 5000L, condenser is that surface area is the stainless steel condenser of 30M2, liquid storage device is that volume is the stainless steel liquid storage device of 250L, and dump tank I and dump tank II are the enamelled vessel that volume is 2000L.
6. dichloroethanes distilling apparatus according to claim 1, is characterized in that: be provided with liquid barrier in described liquid storage device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220703296 CN202983254U (en) | 2012-12-18 | 2012-12-18 | Dichloroethane distilling apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220703296 CN202983254U (en) | 2012-12-18 | 2012-12-18 | Dichloroethane distilling apparatus |
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| Publication Number | Publication Date |
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| CN202983254U true CN202983254U (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220703296 Expired - Lifetime CN202983254U (en) | 2012-12-18 | 2012-12-18 | Dichloroethane distilling apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974114A (en) * | 2012-12-18 | 2013-03-20 | 上海试四化学品有限公司 | Dichloroethane distillation device and distillation process |
-
2012
- 2012-12-18 CN CN 201220703296 patent/CN202983254U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974114A (en) * | 2012-12-18 | 2013-03-20 | 上海试四化学品有限公司 | Dichloroethane distillation device and distillation process |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |