CN215327515U - Waste liquid recycling device for dioxolane production - Google Patents
Waste liquid recycling device for dioxolane production Download PDFInfo
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- CN215327515U CN215327515U CN202121903311.0U CN202121903311U CN215327515U CN 215327515 U CN215327515 U CN 215327515U CN 202121903311 U CN202121903311 U CN 202121903311U CN 215327515 U CN215327515 U CN 215327515U
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Abstract
A waste liquid recycling device for dioxolane production relates to the field of recycling machinery and comprises an evaporator, wherein a negative pressure fan is arranged at the top end inside the evaporator and connected with an exhaust pipe, a condenser is arranged on the exhaust pipe, a dropper is connected to the tail end of the exhaust pipe, a collecting assembly is arranged below the dropper, the collecting assembly comprises two electric cylinders, and an installation platform is arranged on each electric cylinder; according to the characteristic that the boiling points of impurities in the byproduct alkali liquor are different, various impurities in the byproduct alkali liquor are distilled out through gradual temperature rise, then the impurities are transferred to the collecting bottle through condensation of the condensing tube, methanol and methylal are distilled out, the temperature rise is continued to evaporate water with the azeotropic point and dioxolane, when the concentration in the byproduct alkali liquor reaches more than 35%, the distillation is stopped, the byproduct alkali liquor is conveyed back to the liquid alkali storage tank of the extraction unit again, impurity removal and recycling of the byproduct alkali liquor are completed, and the utilization rate is high.
Description
Technical Field
The utility model relates to the field of recycling machinery, in particular to a waste liquid recycling device for producing dioxolane.
Background
Dioxolane is also called 1, 3-dioxolane as an excellent organic solvent, has wide application, is mainly used as a solvent of oil and fat, an extracting agent, an electrolytic solvent of a lithium battery, a chlorine-based solvent stabilizer, a drug intermediate and a raw material of co-polyformaldehyde, and can also be used as a silk finishing agent and a sealing glue raw material.
Dioxolane can produce by-product alkalinity in the reaction production process by adding raw material alkali, the concentration of the by-product alkali liquor is lower than that of the raw material alkali liquor, and meanwhile, a large amount of impurities exist in the by-product alkali liquor, and the by-product alkali liquor is directly discharged outwards originally, so that the environment is polluted, the utilization rate of the by-product alkali liquor is low, the input amount of the raw material alkali is large, and the cost is high.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems that the prior art has the problems of environmental pollution and low utilization rate of the byproduct alkali liquor caused by directly discharging the byproduct alkali liquor outwards, the utility model provides a waste liquor recycling device for producing dioxolane, which can avoid the problems.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
a waste liquid recycling device for dioxolane production comprises an evaporator, wherein a negative pressure fan is arranged at the top end inside the evaporator, the negative pressure fan is connected with an exhaust pipe, a condenser is arranged on the exhaust pipe, the tail end of the exhaust pipe is connected with a dropper, a collecting assembly is arranged below the dropper, the collecting assembly comprises two electric cylinders, mounting tables are arranged on the electric cylinders, a motor is arranged in each mounting table, the motor is connected with a turntable, a plurality of collecting bottles are arranged in the turntable, a liquid suction pipe is arranged at the bottom of the evaporator, penetrates through the evaporator and is connected with a water pump, and the water pump is connected with an extraction unit caustic soda liquid storage tank; according to the characteristic that the boiling points of impurities in the byproduct alkali liquor are different, various impurities in the byproduct alkali liquor are distilled out through gradual temperature rise, after the concentration in the byproduct alkali liquor reaches more than 35%, the distillation is stopped, the byproduct alkali liquor is conveyed back to the liquid alkali storage tank of the extraction unit, the impurity removal and recycling of the byproduct alkali liquor are completed, and the utilization rate is high.
In some embodiments, the upper surface of the rotary disc is provided with a mounting groove, three partition plates are arrayed on the inner circumference of the mounting groove, the three partition plates divide the mounting groove into three collecting areas, each collecting area is provided with the collecting bottle, and the dropper is arranged right above the collecting bottle; the collecting bottle separately collects the small drops of different impurities condensed by distillation.
In some embodiments, a liquid outlet pipe is connected to the extraction unit liquid alkali storage tank, the liquid outlet pipe passes through the evaporator and extends to the inside of the evaporator, and the bottom of the evaporator contains byproduct alkali liquor; ensuring the high-efficiency transportation of the byproduct alkali liquor to be purified.
In some embodiments, a side of the water pump away from the liquid extraction pipe is provided with a conveying pipe, and the conveying pipe extends to the bottom of the extraction unit liquid alkali storage tank through the extraction unit liquid alkali storage tank; and re-injecting the byproduct alkali liquor after impurity removal into the extraction unit alkali liquor storage tank.
In some embodiments, a first valve is arranged on the liquid pumping pipe, a second valve is arranged on the liquid outlet pipe, a third valve is arranged on the air pumping pipe, and the first valve, the second valve and the third valve are all solenoid valves; the gas and liquid circulation is accurately controlled.
In some embodiments, a motor mounting slot is provided in the mounting table, the motor being disposed in the motor mounting slot.
In some embodiments, the dropper is connected with the end of the liquid suction pipe far away from the negative pressure air blower in a threaded mode.
In some embodiments, the liquid outlet pipe is made of high-temperature resistant materials; the service life of the liquid outlet pipe is prolonged.
In some embodiments, the dropper is connected with the end of the liquid suction pipe far away from the negative pressure air blower in a threaded mode.
In some embodiments, the electric cylinder and the water pump are electrically connected with the control board respectively.
The waste liquid recycling device for dioxolane production relates to the field of recycling machinery, and comprises an evaporator, wherein a negative pressure fan is arranged at the top end inside the evaporator, the negative pressure fan is connected with an exhaust pipe, a condenser is arranged on the exhaust pipe, the tail end of the exhaust pipe is connected with a dropper, a collecting assembly is arranged below the dropper, the collecting assembly comprises two electric cylinders, an installation table is arranged on the electric cylinders, a motor is arranged in the installation table, the motor is connected with a rotary table, a plurality of collecting bottles are arranged in the rotary table, a liquid pumping pipe is arranged at the bottom of the evaporator, the liquid pumping pipe penetrates through the evaporator and is connected with a water pump, and the water pump is connected with an extraction unit caustic soda liquid storage tank; according to the characteristic that the boiling points of impurities in the byproduct alkali liquor are different, various impurities in the byproduct alkali liquor are distilled out through gradual temperature rise, then the impurities are transferred to the collecting bottle through condensation of the condensing tube, methanol and methylal are distilled out, the temperature rise is continued to evaporate water with the azeotropic point and dioxolane, when the concentration in the byproduct alkali liquor reaches more than 35%, the distillation is stopped, the byproduct alkali liquor is conveyed back to the liquid alkali storage tank of the extraction unit again, impurity removal and recycling of the byproduct alkali liquor are completed, and the utilization rate is high.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a top view of a portion of a turntable according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As shown in fig. 1 and 2, a waste liquid recycling device for dioxolane production comprises an evaporator 11, a negative pressure fan 12 is arranged at the top end inside the evaporator, the negative pressure fan is connected with an exhaust pipe 13, a condenser 15 is arranged on the exhaust pipe, the tail end of the exhaust pipe is connected with a dropper 16, a collection assembly 2 is arranged below the dropper, the collection assembly comprises two electric cylinders 21, mounting tables 22 are arranged on the electric cylinders, a motor 23 is arranged in the mounting tables, the motor is connected with a rotating disc 24, a plurality of collection bottles 242 are arranged in the rotating disc, a liquid suction pipe 17 is arranged at the bottom of the evaporator, the liquid suction pipe penetrates through the evaporator and is connected with a water pump 19, and the water pump is connected with an extraction unit caustic soda storage tank 3; the device for recycling the byproduct alkali liquor mainly carries out distillation and impurity removal, and the impurity removal process is as follows: conveying the byproduct alkali liquor from the extraction unit alkali liquor storage tank to the evaporator, removing organic matters (such as dioxolane, methanol and methylal) in the alkali liquor in a distillation mode, then increasing the temperature to continuously evaporate a small amount of water to enable the concentration of the byproduct to reach more than 35%, then conveying the byproduct alkali liquor back to the extraction unit alkali liquor storage tank to be matched with fresh raw material alkali liquor for use, so that the utilization rate of the alkali liquor is improved, wherein the main component of the alkali liquor is sodium hydroxide, and about 2% of sodium formate remains in the alkali liquor after distillation; the electric cylinder can drive the mounting platform to vertically lift, the electric cylinder is matched with the dropper to collect different distilled impurities, the condenser can condense the distilled impurity vapor into small droplets, the small droplets are added into corresponding collecting bottles along the dropper, when the temperature reaches the boiling temperature of first impurity methylal, the temperature is kept, all the impurities are distilled, then the motor starts the disc to rotate under the driving of the motor, one collecting bottle is rotated to be under the dropper, the current impurity collection is completed, after the current impurity collection is completed, the motor continues to drive the disc to rotate, the next empty collecting bottle is switched, at the moment, the temperature is raised to the boiling temperature of next impurity methanol, all the next impurity is distilled, and the boiling points of all the impurities in the byproduct alkali liquor are as follows: the dioxolane has the boiling point of 74 ℃, is subjected to azeotropic distillation with water at the boiling point of 72 ℃, and is subjected to methylal at the boiling point of 42 ℃ and methanol at the boiling point of 65 ℃, after the impurities are distilled, the byproduct alkali liquor is pumped into the extraction unit liquid alkali storage tank through the action of the water pump, so that the recycling of the byproduct alkali liquor is completed, the utilization rate of the byproduct alkali liquor of the device is high, the environment cannot be polluted, the automation degree is high, and the working efficiency can be greatly improved.
In the specific implementation of the embodiment of the present invention, as shown in fig. 1 and fig. 2, the upper surface of the turntable is provided with a mounting groove 243, three partition plates 241 are arrayed on the inner circumference of the mounting groove, the three partition plates divide the mounting groove into three collecting regions 244, each collecting region is provided with a collecting bottle, and the dropper is arranged right above the collecting bottle; different distilled impurities are respectively stored in the three collecting areas, and the collecting bottles are respectively close to the dropper in sequence, so that high-efficiency collection is guaranteed.
In the specific implementation of the embodiment of the utility model, as shown in fig. 1, a liquid outlet pipe 31 is connected to the liquid caustic soda storage tank of the extraction unit, the liquid outlet pipe passes through the evaporator and extends to the inside of the evaporator, and the bottom of the evaporator contains a byproduct lye; the liquid outlet pipe is used for transferring the byproduct alkali liquor in the liquid alkali storage tank of the extraction unit, so that the efficient operation of the subsequent distillation operation is ensured.
In practical implementation of the embodiment of the present invention, as shown in fig. 1, a delivery pipe 191 is disposed on a side of the water pump away from the liquid pumping pipe, and the delivery pipe passes through the extraction unit caustic soda liquid storage tank and extends to the bottom of the extraction unit caustic soda liquid storage tank; and the water pump is utilized to realize the recycling of the byproduct alkali liquor after impurity removal.
In specific implementation of the embodiment of the present invention, as shown in fig. 1, a first valve 18 is disposed on the liquid pumping pipe, a second valve 32 is disposed on the liquid discharging pipe, a third valve 14 is disposed on the air pumping pipe, and the first valve, the second valve, and the third valve are all solenoid valves; the first valve, the second valve and the third valve can precisely control the circulation of impurity steam and liquid respectively.
In the specific implementation of the embodiment of the present invention, as shown in fig. 1, a motor installation groove 25 is formed in the installation table, and the motor is arranged in the motor installation groove.
According to the further refinement of the scheme of the embodiment of the utility model, the liquid outlet pipe is made of a high-temperature resistant material; the liquid outlet pipe is ensured not to be damaged in the distillation process.
According to further refinement of the scheme of the embodiment of the utility model, the dropper is connected with one end of the liquid pumping pipe, which is far away from the negative pressure fan, in a threaded manner.
According to the further refinement of the scheme of the embodiment of the utility model, the electric cylinder and the water pump are respectively electrically connected with the control panel.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the utility model or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the utility model as defined by the appended claims.
Claims (7)
1. The utility model provides a waste liquid recycle device of dioxolane production usefulness, a serial communication port, including the evaporimeter, the inside top of evaporimeter is provided with negative-pressure air fan, negative-pressure air fan is connected with the exhaust column, be provided with the condenser on the exhaust column, exhaust column end-to-end connection has the burette, the below of burette is provided with the collection subassembly, the collection subassembly includes two electronic jars, be provided with the mount table on the electronic jar, be provided with the motor in the mount table, the motor is connected with the carousel, be provided with a plurality of receiving flasks in the carousel, the bottom of evaporimeter is provided with the liquid suction pipe, the liquid suction pipe passes the evaporimeter is connected with the water pump, the water pump is connected with extraction unit liquid caustic soda storage tank.
2. The apparatus as claimed in claim 1, wherein the turntable has a mounting groove on its upper surface, the mounting groove has three partition plates arranged on its inner circumference, the three partition plates divide the mounting groove into three collecting regions, each collecting region has a collecting bottle, and the dropper is disposed directly above the collecting bottle.
3. The apparatus according to claim 1, wherein a liquid outlet pipe is connected to the extraction unit liquid caustic storage tank, the liquid outlet pipe passes through the evaporator and extends to the inside of the evaporator, and a byproduct lye is contained at the bottom of the evaporator.
4. The apparatus of claim 1, wherein a delivery pipe is disposed on a side of the water pump away from the liquid pumping pipe, and the delivery pipe passes through the extraction unit caustic soda liquid storage tank and extends to a bottom of the extraction unit caustic soda liquid storage tank.
5. The device for recycling waste liquid from dioxolane production according to claim 3, wherein said liquid suction pipe is provided with a first valve, said liquid outlet pipe is provided with a second valve, said air suction pipe is provided with a third valve, and said first valve, said second valve and said third valve are all solenoid valves.
6. The waste liquid recycling device for dioxolane production according to claim 1, wherein said dropper is connected to the end of said liquid suction pipe away from said negative pressure air blower in a threaded manner.
7. The device for recycling waste liquid in dioxolane production according to claim 1, wherein said electric cylinder and said water pump are electrically connected to said control board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121903311.0U CN215327515U (en) | 2021-08-13 | 2021-08-13 | Waste liquid recycling device for dioxolane production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121903311.0U CN215327515U (en) | 2021-08-13 | 2021-08-13 | Waste liquid recycling device for dioxolane production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215327515U true CN215327515U (en) | 2021-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121903311.0U Active CN215327515U (en) | 2021-08-13 | 2021-08-13 | Waste liquid recycling device for dioxolane production |
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| Country | Link |
|---|---|
| CN (1) | CN215327515U (en) |
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2021
- 2021-08-13 CN CN202121903311.0U patent/CN215327515U/en active Active
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