Efficient mother liquor distillation device

Abstract

The utility model relates to the technical field of mother liquor distillation, in particular to an efficient mother liquor distillation device which comprises a tank body part, the heating part is arranged on the tank body part; the condensation part is connected with the tank body part, and the tank body part comprises an outer tank; the inner tank is arranged in the outer tank; the motor is arranged at the top of the inner tank; the stirring rod is arranged in the inner tank and is connected with the motor; and the feeding valve is connected with the inner tank. Through the assembly composed of the tank body part, the heating part and the condensation part, a set of double-cavity composite distillation device is provided for mother liquor for industrial processing, the mother liquor distillation and purification efficiency can be effectively improved, the double-cavity distillation tank structure is arranged, the mother liquor distillation and purification efficiency is effectively improved, primary distillation and secondary distillation are allowed to be carried out at the same time through the double-cavity design, and the product quality is improved. The time of the whole distillation process is greatly shortened, the operation period is shortened, and the efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mother liquor distillation, in particular to a mother liquor high-efficiency distillation device. Background Art

[0002] Distillation can remove excess water from the mother liquor, which helps maintain the water balance of the production system. For example, in alumina production, in order to maintain the normal mother liquor circulation process, it is necessary to discharge excess water entering the production system to meet the circulating alkali solution concentration requirements required for dissolution.

[0003] The existing single-chamber distillation can only carry out one distillation process, and the mother liquor purity is relatively limited. In addition, the single-chamber distillation can only rely on one distillation process to achieve a certain purity, which requires a longer distillation time and a higher temperature to achieve, resulting in a relatively high energy consumption. Therefore, a mother liquor high-efficiency distillation device is proposed to provide a set of double-chamber composite distillation devices for industrial processing mother liquor through a tank body part, a heating part and a condensing part, which can effectively improve the efficiency of mother liquor distillation and purification. A double-chamber distillation tank structure is set up to further distill the liquid obtained by the preliminary distillation, so that the cleanliness of the discharged distillate is improved, and the difficulty of later treatment of the distillate is reduced. Utility Model Content

[0004] In view of the problems in the prior art, the utility model provides a mother liquor high-efficiency distillation device, which provides a double-chamber composite distillation device for industrial processing mother liquor through a tank body part, a heating part and a condensing part, which can effectively improve the efficiency of mother liquor distillation and purification. A double-chamber distillation tank structure is set up, which can further distill the liquid obtained by preliminary distillation, thereby improving the cleanliness of the discharged distillate and reducing the difficulty of later treatment of the distillate.

[0005] The technical solution adopted by the utility model to solve the technical problem is a mother liquid high-efficiency distillation device, comprising:

[0006] Tank body;

[0007] A heating part is arranged on the tank body;

[0008] The condensation part is connected with the tank body.

[0009] By adopting the above technical scheme, through the components consisting of the tank body, the heating part and the condensing part, it is possible to provide a set of composite distillation equipment for mother liquor for industrial processing, which can effectively improve the efficiency of mother liquor distillation and purification, and can further distill the liquid obtained by the preliminary distillation to improve the cleanliness of the discharged distillate, reduce the difficulty of the subsequent treatment of the distillate, and at the same time, the low-concentration mother liquor obtained by the initial distillation can be secondary distilled and extracted, so that the efficiency of mother liquor distillation and purification is effectively increased.

[0010] Specifically, the tank body comprises:

[0011] outer tank;

[0012] An inner tank is arranged inside an outer tank;

[0013] A motor is arranged on the top of the inner tank;

[0014] A stirring rod is arranged in the inner tank and connected to the motor;

[0015] Feed valve, connected to the inner tank.

[0016] By adopting the above technical solution, due to the double-chamber design, the internal cavity first performs primary distillation to evaporate and collect the components with lower boiling points. Subsequently, the external cavity performs secondary distillation on the liquid produced by the distillation of the internal cavity to further remove impurities and substances with lower boiling points, thereby significantly improving the purity of the liquid.

[0017] Specifically, the heating unit includes:

[0018] A heating plate is arranged at the bottom of the inner tank and connected to the outer tank;

[0019] An air inlet pipe connected to the heating plate;

[0020] Gas interface, connected to the air inlet pipe;

[0021] Fresh air interface, connected to the air intake pipe;

[0022] An igniter, arranged at the bottom of the air intake pipe;

[0023] The concentrate discharge valve is connected to the outer tank and the inner tank.

[0024] By adopting the above technical solution, the outer tank and the lower part of the inner tank are heated by the heating part, so that the outer tank and the inner tank are heated synchronously. Through synchronous heating, the two groups of cavities can share the heat source, reducing energy waste.

[0025] Specifically, a smoke exhaust pipe is arranged on the top of the heating plate, and a smoke exhaust interface is arranged on the top of the smoke exhaust pipe penetrating through the outer tank.

[0026] Specifically, the condensation unit includes:

[0027] A condenser pipe is arranged on the outer tank;

[0028] A tee pipe connected to the outer tank, the inner tank and the condenser pipe;

[0029] Three-way valve, connected to the bottom of the condenser tube;

[0030] A drain pipe connected to the three-way valve and the bottom of the outer tank;

[0031] The liquid outlet pipe is connected to the three-way valve.

[0032] The steam inlet end at the top of the three-way pipe is connected to the steam outlet end of the three-way pipe, and the steam inlet end of the three-way pipe is connected to the top of the outer tank and the top of the inner tank respectively.

[0033] By adopting the above technical solution, the steam evaporated and discharged in the tank body is condensed by exchanging heat with the external air through the condensation part.

[0034] The beneficial effects of the utility model are as follows: through the components consisting of a tank body, a heating part and a condensing part, a set of double-chamber composite distillation devices is provided for mother liquor for industrial processing, which can effectively improve the efficiency of mother liquor distillation and purification, and a double-chamber distillation tank structure is arranged, in which the double chambers are heated synchronously at the bottom by a group of heating plates, and the liquid produced by the distillation of the inner cavity is subjected to secondary distillation and purification through the external cavity, so that the liquid obtained by the preliminary distillation can be further distilled, so that the cleanliness of the discharged distillate is improved, and the difficulty of the later treatment of the distillate is reduced, and at the same time, the low-concentration mother liquor obtained by the initial distillation can be secondary distilled and extracted, so that the efficiency of mother liquor distillation and purification is effectively increased, and the double-chamber design allows the primary distillation and the secondary distillation to be carried out at the same time, which greatly shortens the time of the entire distillation process, shortens the operation cycle, and improves the efficiency, and solves the problems that the existing single-chamber distillation can only carry out one distillation process and the purity of the mother liquor is relatively limited, and the single-chamber distillation can only rely on one distillation process to achieve a certain purity, which requires a longer distillation time and a higher temperature to achieve, thereby resulting in relatively high energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0036] Figure 1 It is an overall schematic diagram of the utility model;

[0037] Figure 2 It is a partial cross-sectional schematic diagram of the tank body of the utility model;

[0038] Figure 3 It is a schematic diagram of a three-way pipe of the utility model;

[0039] Figure 4 It is a schematic diagram of a stirring rod of the present utility model.

[0040] In the figure: 11, outer tank; 12, inner tank; 13, motor; 14, stirring rod; 15, feed valve; 16, concentrate discharge valve; 21, heating plate; 22, air inlet pipe; 23, gas interface; 24, fresh air interface; 25, igniter; 26, smoke exhaust pipe; 27, smoke exhaust interface; 31, condenser; 32, three-way pipe; 33, three-way valve; 34, drain pipe; 35, liquid outlet pipe. DETAILED DESCRIPTION

[0041] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0042] To improve efficiency, Figure 1-4 As shown, the utility model discloses a mother liquid efficient distillation device, comprising:

[0043] Tank body;

[0044] A heating part is arranged on the tank body;

[0045] The condensation part is connected with the tank body.

[0046] When in use, a double-chamber composite distillation device is provided for the mother liquor for industrial processing through the tank body, heating part and condensing part, which can effectively improve the efficiency of mother liquor distillation and purification. The double-chamber distillation tank structure is set up to further distill the liquid obtained by preliminary distillation, so as to improve the cleanliness of the discharged distillate and reduce the difficulty of later treatment of the distillate.

[0047] To improve the purity, for example, Figure 2 As shown, the utility model also includes that the tank body portion includes:

[0048] Outer tank 11;

[0049] The inner tank 12 is arranged in the outer tank 11;

[0050] The motor 13 is arranged on the top of the inner tank 12;

[0051] A stirring rod 14 is disposed in the inner tank 12 and connected to the motor 13;

[0052] A feed valve 15 is connected to the inner tank 12;

[0053] The concentrate discharge valve 16 is connected to the outer tank 11 and the inner tank 12 .

[0054] When in use, the mother liquor to be purified is fed into the inner tank 12 through the feed valve 15, and the stirring rod 14 is driven by the motor 13 to stir the mother liquor in the inner tank 12 during distillation. Stirring can enhance the heat transfer during the distillation process and increase the speed of heat transfer. Under the action of stirring, the surface of the liquid will be continuously heated by the bottom, making the temperature distribution more uniform, thereby reducing the unevenness of the evaporation temperature and ensuring the efficiency of the distillation.

[0055] For example, Figure 2 As shown, the utility model also includes that the heating unit includes:

[0056] The heating plate 21 is disposed at the bottom of the inner tank 12 and connected to the outer tank 11;

[0057] An air inlet pipe 22 connected to the heating plate 21;

[0058] A gas interface 23 connected to the gas inlet pipe 22;

[0059] A fresh air interface 24 connected to the air inlet pipe 22;

[0060] The igniter 25 is disposed at the bottom of the air intake pipe 22 .

[0061] When in use, gas is injected into the air intake pipe 22 through the gas interface 23, and fresh air is injected into the air intake pipe 22 through the fresh air interface 24, so that the gas mixed with fresh air enters the heating plate 21, and the igniter 25 ignites the gas entering the heating plate 21, so that the gas in the heating plate 21 burns, heating the outer tank 11 and the bottom of the inner tank 12.

[0062] For example, Figure 2 As shown, the utility model also includes that a smoke exhaust pipe 26 is provided on the top of the heating plate 21 , and a smoke exhaust interface 27 is provided on the top of the smoke exhaust pipe 26 penetrating through the outer tank 11 .

[0063] When in use, smoke generated by the combustion of the heating plate 21 is discharged through the smoke exhaust interface 27 .

[0064] For example, Figure 1 , 2 As shown, the utility model also includes that the condensation unit includes:

[0065] The condenser 31 is arranged on the outer tank 11;

[0066] A three-way pipe 32 is connected to the outer tank 11, the inner tank 12 and the condenser pipe 31;

[0067] A three-way valve 33 connected to the bottom of the condenser tube 31;

[0068] A drain pipe 34 is connected to the three-way valve 33 and the bottom of the outer tank 11;

[0069] The liquid outlet pipe 35 is connected to the three-way valve 33 .

[0070] The steam inlet end at the top of the three-way pipe 32 is connected to the steam outlet end of the three-way pipe 32 , and the steam inlet end of the three-way pipe 32 is connected to the top of the outer tank 11 and the top of the inner tank 12 respectively.

[0071] According to operational requirements, the outer tank 11 and the inner tank 12 may be equipped with liquid level sensors or liquid level meters.

[0072] When the utility model is in use, the mother liquid to be purified is put into the inner tank 12 through the feed valve 15, and the mother liquid in the inner tank 12 is stirred by the motor 13 to enhance the heat transfer in the distillation process and increase the speed of heat transfer. Under the action of stirring, the surface of the liquid is continuously heated by the bottom, so that the temperature distribution is more uniform, thereby reducing the non-uniformity of the evaporation temperature and ensuring the efficiency of the distillation. During the distillation, the outer tank 11 and the inner tank are heated by the heating plate 21 with combustion gas inside. The bottom of the inner tank 12 is heated. After the mother liquid in the inner tank 12 is heated, the steam in the mother liquid will enter the condenser 31 through the three-way pipe 32, and enter the outer tank 11 through the discharge pipe 34, so that the liquid obtained by the preliminary distillation is subjected to secondary distillation. The steam generated by the secondary distillation enters the condenser 31 again through the three-way pipe 32, and the cycle is repeated. After the liquid in the inner tank 12 reaches a certain height, the liquid outlet pipe 35 is opened, and the liquid generated by subsequent condensation is discharged from the liquid outlet pipe 35, so that the outer tank 11 and the inner tank 12 obtain high-concentration mother liquid. After the concentrated liquid discharge valve 16 is opened, the high-concentration mother liquid is recycled.

[0073] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A mother liquor high efficiency distillation device, characterized in that: include: Tank body; A heating part is arranged on the tank body; A condensation part connected to the tank body; The tank body comprises: Outer tank (11); An inner tank (12) is arranged inside the outer tank (11); A motor (13) is arranged on the top of the inner tank (12); A stirring rod (14) is disposed in the inner tank (12) and connected to the motor (13); A feed valve (15) connected to the inner tank (12); A concentrate discharge valve (16) connected to the outer tank (11) and the inner tank (12); The heating unit comprises: A heating plate (21) is disposed at the bottom of the inner tank (12) and connected to the outer tank (11); An air inlet pipe (22) connected to the heating plate (21); A gas interface (23) connected to the gas inlet pipe (22); A fresh air interface (24) connected to the air intake pipe (22); The igniter (25) is arranged at the bottom of the air intake pipe (22).

2. A mother liquor efficient distillation device according to claim 1, characterized in that: A smoke exhaust pipe (26) is provided on the top of the heating plate (21), and a smoke exhaust interface (27) is provided on the top of the smoke exhaust pipe (26) that penetrates through the outer tank (11).

3. A mother liquor efficient distillation device according to claim 2, characterized in that: The condensation unit comprises: A condenser (31) is disposed on the outer tank (11); A three-way pipe (32) connected to the outer tank (11), the inner tank (12) and the condenser pipe (31); A three-way valve (33) connected to the bottom of the condenser tube (31); A liquid discharge pipe (34) connected to the three-way valve (33) and the bottom of the outer tank (11); The liquid outlet pipe (35) is connected to the three-way valve (33).

4. A mother liquor efficient distillation device according to claim 3, characterized in that: The steam inlet end at the top of the three-way pipe (32) is connected to the steam outlet end of the three-way pipe (32), and the steam inlet end of the three-way pipe (32) is respectively connected to the top of the outer tank (11) and the top of the inner tank (12).

Images