High-concentration alcohol recovery device

Abstract

The utility model discloses a high-concentration alcohol recovery device, and belongs to the technical field of alcohol recovery equipment. The steam inlet end of the alcohol conveying front pipe is arranged to be the slope opening, the steam inlet area can be increased, the heating spiral pipe conducts appropriate temperature control heating on a solution in the storage tank, a low-concentration alcohol solution is firstly changed into steam, and high-concentration alcohol is obtained after the steam is condensed through the condenser and residual moisture is absorbed through the adsorption dryer. An adjusting control valve is arranged on the alcohol conveying elbow and can adjust and control the flow of the low-concentration alcohol solution entering the adsorption dryer. The adsorption dryer is filled with a drying agent and is provided with a switch device, so that the drying agent in the adsorption dryer can be conveniently replaced in time, and the quality of recovered alcohol is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of alcohol recovery equipment, and particularly relates to a high-concentration alcohol recovery device. Background Art

[0002] Sodium carboxymethyl cellulose (CMC), a key product in the cellulose ether class, is a chemically modified derivative of natural cellulose and is widely used in food, household chemicals, and other fields. The production process of CMC involves alkalization and etherification reactions. Both reactions require the use of large amounts of ethanol as a solvent. Therefore, if the alcohol solution in CMC production is not promptly and effectively handled, it will negatively impact product quality.

[0003] Existing alcohol recovery mostly relies on traditional distillation equipment, but these devices often have problems such as low efficiency and low purity of recovered alcohol. In order to further improve the efficiency of alcohol recovery and obtain a high-concentration alcohol solution, multi-stage recovery devices are added to perform multi-stage recovery of alcohol. However, this leads to complex equipment and waste of thermal energy, which is not in line with the concept of green energy conservation. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the purpose of this utility model is to provide a high-concentration alcohol recovery device. Based on the principle that the boiling point of alcohol is lower than that of other solutions, the utility model evaporates the alcohol in the solution through appropriate temperature control and heating, and then condenses it through a condenser and absorbs the residual water through an adsorption dryer to obtain high-concentration alcohol.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A high-concentration alcohol recovery device includes a storage tank with a heating spiral tube inside. The storage tank is connected to the inside of a condenser through an alcohol delivery front pipe. The condenser is connected to the inside of an adsorption dryer through an alcohol delivery elbow. The adsorption dryer pipeline is connected to an alcohol recovery tank.

[0007] When the utility model is in use, the heating spiral tube heats the solution in the storage tank with appropriate temperature control. The boiling point of the azeotrope of alcohol and water in the solution is 78.13°C, and the boiling point of sodium carboxymethyl cellulose is 410.8°C. Therefore, the low-concentration alcohol solution doped with water first turns into steam, and then turns into liquid after condensation in the condenser. The condensed liquid flows into the adsorption dryer through the conveying elbow. The adsorption dryer absorbs the residual water in the low-concentration alcohol solution to obtain high-concentration alcohol. The device used in the separation and recovery process is simple, there is no problem of excessive heat energy waste, it conforms to the concept of green environmental protection, and the recovered alcohol has high purity, which improves the alcohol recovery efficiency.

[0008] As an optimization, a regulating control valve is provided on the alcohol delivery elbow. A switch device is provided on the adsorption dryer, and a desiccant is filled inside the adsorption dryer.

[0009] In this optimized solution, a regulating valve is installed on the alcohol delivery elbow to control the flow of low-concentration alcohol solution into the adsorption dryer. The adsorption dryer is filled with a desiccant, such as anhydrous calcium chloride or anhydrous copper sulfate. An on / off switch is also provided to facilitate timely replacement of the desiccant.

[0010] When using this optimization solution, the regulating control valve is first closed, and then the switch device is opened to replace the desiccant. After the replacement is completed, the switch device is first closed, and then the regulating control valve is opened, thereby increasing the concentration of the recovered alcohol and ensuring the quality of the recovered alcohol.

[0011] As an optimization, the steam inlet end of the alcohol delivery front pipe is a bevel opening.

[0012] When this optimized solution is used, the steam inlet end of the alcohol delivery front pipe is set as an inclined opening, which can increase the steam inlet area and improve the distillation efficiency to a certain extent.

[0013] As an optimization, a spiral condenser tube is provided in the condenser.

[0014] When this optimization solution is in use, the spiral condenser tubes provided in the condenser can increase the contact area with the steam and ensure the condensation effect.

[0015] As an optimization, a liquid inlet pipe is provided above the storage tank, a liquid outlet is provided below the storage tank, and a plurality of supporting legs are fixedly connected to the bottom of the storage tank.

[0016] This optimized solution allows for the continuous introduction of a sodium carboxymethyl cellulose (CMC) mixture containing alcohol through an inlet pipe located above the tank. After heating and evaporation, the remaining CMC is collected through the outlet, making operation simple. Support legs fixed to the bottom of the tank ensure stability and enhance safety.

[0017] Preferably, an alcohol outlet pipe is provided below the alcohol recovery tank.

[0018] When this optimization solution is in use, the high-concentration alcohol in the alcohol recovery tank is discharged through the alcohol outlet pipe and then collected, thereby achieving efficient recovery of high-concentration alcohol.

[0019] By adopting the above technical solution, the beneficial effects of the utility model are:

[0020] 1. The heating coil heats the solution in the storage tank at an appropriate temperature. The low-concentration alcohol solution, doped with water, first turns into vapor. This vapor is then condensed in a condenser, and the adsorption dryer absorbs the remaining water to produce high-concentration alcohol. The separation and recovery process utilizes simple equipment, eliminates excessive heat waste, and adheres to environmental protection principles. The recovered alcohol is high-purity, improving efficiency.

[0021] 2. The alcohol delivery elbow of this utility model is equipped with a regulating control valve to adjust the flow rate of low-concentration alcohol solution entering the adsorption dryer. The adsorption dryer is filled with desiccant, and a switch device is installed on the adsorption dryer to facilitate timely replacement of the desiccant in the adsorption dryer to ensure the quality of the recovered alcohol.

[0022] 3. The steam inlet end of the alcohol delivery front pipe of the utility model is set as an inclined opening, which can increase the area for steam inlet and improve the distillation efficiency to a certain extent. The spiral condenser tube set in the condenser can increase the contact area with the steam and ensure the condensation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural diagram of a high-concentration alcohol recovery device.

[0024] In the figure: 1. Storage tank; 2. Heating spiral tube; 3. Alcohol delivery front pipe; 4. Condenser; 5. Alcohol delivery elbow; 6. Adsorption dryer; 7. Alcohol recovery tank; 8. Adjustment control valve; 9. Switch device; 10. Spiral condenser; 11. Liquid inlet pipe; 12. Liquid outlet; 13. Support leg; 14. Alcohol outlet pipe. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1 The utility model provides a technical solution: a high-concentration alcohol recovery device, including a storage tank 1, a heating spiral tube 2 is provided inside the storage tank 1, the storage tank 1 is connected to the inside of a condenser 4 through an alcohol delivery front pipe 3, the condenser 4 is connected to the inside of an adsorption dryer 6 through an alcohol delivery elbow 5, and the adsorption dryer 6 is connected to an alcohol recovery tank 7 through a pipeline.

[0027] The heating spiral tube 2 heats the solution in the storage tank 1 under appropriate temperature control. The low-concentration alcohol solution doped with water first turns into steam, and then turns into liquid after condensation by the condenser 4. The condensed liquid flows into the adsorption dryer 6 through the delivery elbow 5. The adsorption dryer 6 absorbs the residual water in the low-concentration alcohol solution to obtain high-concentration alcohol, thereby improving the purity and recovery efficiency of the recovered alcohol.

[0028] The alcohol delivery elbow 5 is equipped with a regulating control valve 8 for regulating the flow of low-concentration alcohol solution into the adsorption dryer 6. The adsorption dryer 6 is filled with desiccant and is also equipped with a switch device 9 to facilitate replacement of the desiccant. To replace the desiccant, the regulating control valve 8 is first closed, then the switch device 9 is opened to replace the desiccant. After replacement, the switch device 9 is first closed, then the regulating control valve 8 is opened, thereby increasing the concentration of the recovered alcohol and ensuring its quality.

[0029] The steam inlet end of the alcohol delivery front pipe 3 is an inclined opening. This can increase the area for steam inlet and improve distillation efficiency to a certain extent. The condenser 4 is provided with a spiral condenser tube 10, which can increase the contact area with the steam and ensure the condensation effect.

[0030] The storage tank 1 is provided with a liquid inlet pipe 11 at the top and a liquid outlet 12 at the bottom. Several support legs 13 are fixedly attached to the bottom of the tank 1. The liquid inlet pipe 11 continuously introduces a sodium carboxymethyl cellulose mixture containing alcohol. After heating and evaporation, the sodium carboxymethyl cellulose remaining in the tank 1 is collected through the liquid outlet 12, simplifying operation. The support legs 13 fixed to the bottom of the tank 1 ensure stability and enhance safety.

[0031] An alcohol outlet pipe 14 is provided below the alcohol recovery tank 7 , and the high-concentration alcohol in the alcohol recovery tank 7 is discharged through the alcohol outlet pipe 14 and then collected, thereby achieving efficient recovery of the high-concentration alcohol.

[0032] Working principle: When the utility model is in use, the sodium carboxymethyl cellulose mixed liquid containing alcohol is introduced into the liquid inlet pipe arranged above the storage tank. The heating spiral tube in the storage tank is appropriately temperature-controlled and heated to control the temperature at 80°C. The low-concentration alcohol solution mixed with water in the mixed liquid first turns into steam. The steam enters the condenser through the steam inlet end of the alcohol delivery front pipe and is condensed into liquid. The condensed liquid flows into the adsorption dryer through the delivery elbow. The desiccant filled in the adsorption dryer absorbs the residual water in the low-concentration alcohol solution and is transported to the alcohol recovery tank through the pipeline to obtain high-concentration alcohol.

[0033] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved through or by adopting existing technologies, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not depart from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A high-concentration alcohol recovery device, comprising a storage tank (1), characterized in that: A heating spiral tube (2) is provided inside the storage tank (1), the storage tank (1) is communicated with the interior of a condenser (4) through an alcohol delivery front pipe (3), the condenser (4) is communicated with the interior of an adsorption dryer (6) through an alcohol delivery elbow (5), and the adsorption dryer (6) is connected to an alcohol recovery tank (7) through a pipeline.

2. The high concentration alcohol recovery device according to claim 1, characterized in that: The alcohol delivery elbow (5) is provided with a regulating control valve (8).

3. The high concentration alcohol recovery device according to claim 1, characterized in that: The adsorption dryer (6) is provided with a switch device (9), and the adsorption dryer (6) is filled with a desiccant.

4. The high concentration alcohol recovery device according to claim 1, characterized in that: The steam inlet end of the alcohol delivery front pipe (3) is an inclined opening.

5. The high concentration alcohol recovery device according to claim 1, characterized in that: The condenser (4) is provided with a spiral condenser tube (10).

6. The high concentration alcohol recovery device according to claim 1, characterized in that: A liquid inlet pipe (11) is provided above the storage tank (1), a liquid outlet (12) is provided below the storage tank (1), and a plurality of supporting legs (13) are fixedly connected to the bottom of the storage tank (1).

7. The high concentration alcohol recovery device according to claim 1, characterized in that: An alcohol outlet pipe (14) is provided below the alcohol recovery tank (7).

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