Evaporation stock solution temperature increasing system

Abstract

The utility model discloses an evaporation stock solution temperature raising system, which relates to the technical field of evaporation stock solution temperature raising systems, and comprises a filter box, a stock solution inlet is arranged on the upper surface of the filter box, a first liquid pump is arranged at the lower part of the right side of the filter box, the other end of a first pipeline is connected with a steam tank, and the inner bottom surface of the steam tank is fixedly connected with a support block. A third pipeline is arranged at the output end of the third liquid pump; an evaporator tank is connected to the other end of the third pipeline; an air pump is arranged at the lower part of the left side of the evaporator tank; a steam tank is connected to the other end of a fourth pipeline; according to the waste heat utilization system, waste heat of steam is utilized, primary heating is carried out on a stock solution, the effect of fully utilizing energy is achieved, and the purpose of reducing the energy consumption of the system is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporation stock solution temperature raising systems, and particularly relates to an evaporation stock solution temperature raising system. Background Technique

[0002] In resource-based enterprises, as the cost of raw materials continues to climb and the price of high-quality products continues to decline, enterprises are facing severe cost control adjustments. In alumina production, the mother liquor after plate heat exchange needs to enter the evaporation unit for mother liquor evaporation. Mother liquor evaporation is an important process for maintaining the balance of water volume and salt volume in the alumina production system and is a major energy-consuming process. According to statistics, in the production of alumina using the pure Bayer process, the steam energy consumption accounts for more than 60% of the total energy consumption, of which the steam used for mother liquor evaporation accounts for about 25% of the total steam consumption, which is equivalent to about 15% of the total energy consumption. In order to reduce the energy consumption of mother liquor evaporation.

[0003] An evaporation stock solution temperature raising system disclosed in the Chinese Utility Model Patent Application Publication Specification CN220877759U, although this system reduces the low-pressure gas consumption of the evaporation unit and synchronously reduces the low-pressure unit consumption of the entire alumina system, during the operation of this system, the steam generated during the evaporation of the stock solution by the evaporator is directly connected to the condenser for condensation, and the waste heat cannot be recycled, resulting in energy waste. Furthermore, this temperature raising system has the disadvantages of high energy consumption and inability to make good use of energy. Content of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides an evaporation stock solution temperature raising system, which solves the problems raised in the above background technique.

[0006] (II) Technical Solutions

[0007] To achieve the above object, the utility model is realized by the following technical solutions: An evaporation stock solution temperature raising system includes a filtration tank. The upper surface of the filtration tank is provided with a stock solution inlet. A first liquid pump is installed at the lower part on the right side of the filtration tank. The output end of the first liquid pump is provided with a first pipeline. The other end of the first pipeline is connected to a steam tank. A support block is fixedly connected to the inner bottom surface of the steam tank. An initial temperature tank is fixedly connected to the upper surface of the support block. A second liquid pump is installed at the lower part on the right side of the steam tank. The output end of the second liquid pump is connected to a second pipeline. The other end of the second pipeline is connected to a heating tank. A third liquid pump is installed at the lower part on the front surface of the heating tank. The output end of the third liquid pump is provided with a third pipeline. The other end of the third pipeline is connected to an evaporator tank. An air pump is installed at the lower part on the left side of the evaporator tank. The output end of the air pump is provided with a fourth pipeline. The other end of the fourth pipeline is connected to the steam tank. A gas collecting hood is arranged on the upper surface of the steam tank. The upper surface of the gas collecting hood is connected to a fifth pipeline. The other end of the fifth pipeline is connected to a condenser.

[0008] Optionally, the water inlet end of the first liquid pump is arranged inside the filtration tank, and the end of the first pipeline far from the first liquid pump penetrates through the steam tank and the initial temperature tank.

[0009] Optionally, the water inlet end of the second liquid pump penetrates through the steam tank and the initial temperature tank, and the end of the second pipeline far from the second liquid pump is arranged inside the heating tank.

[0010] Optionally, the water inlet end of the third liquid pump is arranged inside the heating tank, and the end of the third pipeline far from the third liquid pump is arranged inside the evaporator tank.

[0011] Optionally, the water inlet end of the air pump is arranged inside the evaporator tank, and the end of the fourth pipeline far from the air pump is arranged inside the steam tank.

[0012] Optionally, the lower surface of the gas collecting hood is communicated with the steam tank, and the end of the fifth pipeline far from the condenser is communicated with the gas collecting hood.

[0013] The utility model provides an evaporation stock solution temperature raising system, which has the following beneficial effects:

[0014] 1. The evaporation stock solution temperature-raising system, through the settings of the fourth liquid pump, the fourth pipeline, the steam tank, the support block, the gas collecting hood, the fifth pipeline and the condenser, enables the evaporation stock solution temperature-raising system to have the effect of reducing energy consumption. When in use, the stock solution enters the filter box through the stock solution inlet, and the stock solution is filtered in the filter box to filter out the impurities in the stock solution. Then, under the action of the first liquid pump, the filtered stock solution in the filter box is pumped into the first pipeline, enters the initial temperature tank through the first pipeline, and then under the action of the second liquid pump, the stock solution is pumped into the second pipeline and enters the heating tank through the second pipeline. In the heating tank, the stock solution is heated to the temperature required for evaporation. Then, under the action of the third liquid pump, the stock solution is pumped into the third pipeline again and enters the evaporator tank through the third pipeline. In the evaporator tank, the stock solution is evaporated. The steam generated during the evaporation process is pumped into the fourth pipeline by the fourth liquid pump. At the same time, the alumina dissolved substances in the stock solution are re-solidified into crystals or grains. At the same time, the generated steam enters the interlayer between the steam tank and the initial temperature tank through the fourth pipeline, raising the temperature of the initial temperature tank, and preliminarily heating the stock solution temporarily stored in the initial temperature tank through heat transfer, thereby reducing the energy consumption required for heating in the subsequent heating process and making full use of the waste heat. Finally, the steam enters the condenser through the gas collecting hood and the fifth pipeline and is re-condensed into a liquid and discharged. This device preliminarily heats the stock solution by using the waste heat of the steam, plays the role of making full use of energy, and achieves the purpose of reducing the energy consumption of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a top-view structural schematic diagram of the present utility model;

[0017] Figure 3 is a front-view partial sectional structural schematic diagram at the steam tank of the present utility model;

[0018] Figure 4 is a side-view sectional structural schematic diagram at the steam tank of the present utility model.

[0019] In the figure: 1, filter box; 2, stock solution inlet; 3, first liquid pump; 4, first pipeline; 5, steam tank; 6, support block; 7, initial temperature tank; 8, second liquid pump; 9, second pipeline; 10, heating tank; 11, third liquid pump; 12, third pipeline; 13, evaporator tank; 14, air pump; 15, fourth pipeline; 16, gas collecting hood; 17, fifth pipeline; 18, condenser. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0021] Embodiment 1

[0022] Please refer to Figures 1 to 4 , the present invention provides a technical solution: an evaporation stock solution temperature raising system, including a filtration tank 1. A stock solution inlet 2 is provided on the upper surface of the filtration tank 1. A first liquid pump 3 is installed at the lower part on the right side of the filtration tank 1. The output end of the first liquid pump 3 is provided with a first pipeline 4. The other end of the first pipeline 4 is connected to a steam tank 5. A support block 6 is fixedly connected to the inner bottom surface of the steam tank 5. A primary temperature tank 7 is fixedly connected to the upper surface of the support block 6. The water inlet end of the first liquid pump 3 is arranged in the filtration tank 1. The end of the first pipeline 4 away from the first liquid pump 3 penetrates through the steam tank 5 and the primary temperature tank 7. A second liquid pump 8 is installed at the lower part on the right side of the steam tank 5. The output end of the second liquid pump 8 is connected to a second pipeline 9. The other end of the second pipeline 9 is connected to a heating tank 10. The water inlet end of the second liquid pump 8 penetrates through the steam tank 5 and the primary temperature tank 7. The end of the second pipeline 9 away from the second liquid pump 8 is arranged in the heating tank 10. A third liquid pump 11 is installed at the lower part on the front surface of the heating tank 10. The output end of the third liquid pump 11 is provided with a third pipeline 12. The other end of the third pipeline 12 is connected to an evaporator tank 13. An air pump 14 is installed at the lower part on the left side of the evaporator tank 13. The water inlet end of the third liquid pump 11 is arranged in the heating tank 10. The end of the third pipeline 12 away from the third liquid pump 11 is arranged in the evaporator tank 13. The output end of the air pump 14 is provided with a fourth pipeline 15. The other end of the fourth pipeline 15 is connected to the steam tank 5. A gas collection hood 16 is arranged on the upper surface of the steam tank 5. The upper surface of the gas collection hood 16 is connected to a fifth pipeline 17. The other end of the fifth pipeline 17 is connected to a condenser 18. The water inlet end of the air pump 14 is arranged in the evaporator tank 13. The end of the fourth pipeline 15 away from the air pump 14 is arranged in the steam tank 5. The lower surface of the gas collection hood 16 is communicated with the steam tank 5. The end of the fifth pipeline 17 away from the condenser 18 is communicated with the gas collection hood 16.

[0023] In order to achieve the purpose of reducing the energy consumption of the system, during use, through the settings of the fourth liquid pump, the fourth pipeline 15, the steam tank 5, the support block 6, the air collector hood 16, the fifth pipeline 17 and the condenser 18, the evaporation stock solution temperature-raising system has the effect of reducing energy consumption. During use, the stock solution enters the filter box 1 through the stock solution inlet 2. The stock solution is filtered in the filter box 1 to filter out the impurities in the stock solution. Then, under the action of the first liquid pump 3, the filtered stock solution in the filter box 1 is pumped into the first pipeline 4 and enters the initial temperature tank 7 through the first pipeline 4. Then, under the action of the second liquid pump 8, the stock solution is pumped into the second pipeline 9 and enters the heating tank 10 through the second pipeline 9. In the heating tank 10, the stock solution is heated to the temperature required for evaporation. Then, under the action of the third liquid pump 11, the stock solution is pumped into the third pipeline 12 again and enters the evaporator tank 13 through the third pipeline 12. In the evaporator tank 13, the stock solution is evaporated. The steam generated during the evaporation process is pumped into the fourth pipeline 15 by the fourth liquid pump. At the same time, the alumina dissolved substances in the stock solution are re-solidified into crystals or grains. At the same time, the generated steam enters the interlayer between the steam tank 5 and the initial temperature tank 7 through the fourth pipeline 15, raising the temperature of the initial temperature tank 7. The heat transfer preliminarily heats the stock solution temporarily stored in the initial temperature tank 7, thereby reducing the energy consumption required for heating in the subsequent heating process and making full use of the waste heat. Finally, the steam enters the condenser 18 through the air collector hood 16 and the fifth pipeline 17 and is re-condensed into a liquid and discharged under the action of the condenser 18. By making use of the waste heat of the steam, this device preliminarily heats the stock solution, plays a role in making full use of energy, and achieves the purpose of reducing the energy consumption of the system.

[0024] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent replacements or changes, and should be covered within the protection scope of the present utility model.

Claims

1. An evaporation stock solution temperature raising system, comprising a filtration tank (1), characterized in that: The upper surface of the filtering tank (1) is provided with a stock solution inlet (2). The lower part on the right side of the filtering tank (1) is equipped with a first liquid pump (3). The output end of the first liquid pump (3) is provided with a first pipeline (4). The other end of the first pipeline (4) is connected to a steam tank (5). The inner bottom surface of the steam tank (5) is fixedly connected with a support block (6). The upper surface of the support block (6) is fixedly connected with a primary temperature tank (7). The lower part on the right side of the steam tank (5) is equipped with a second liquid pump (8). The output end of the second liquid pump (8) is connected to a second pipeline (9). The other end of the second pipeline (9) is connected to a heating tank (10). The lower part on the front surface of the heating tank (10) is equipped with a third liquid pump (11). The output end of the third liquid pump (11) is provided with a third pipeline (12). The other end of the third pipeline (12) is connected to an evaporator tank (13). The lower part on the left side of the evaporator tank (13) is equipped with an air pump (14). The output end of the air pump (14) is provided with a fourth pipeline (15). The other end of the fourth pipeline (15) is connected to the steam tank (5). The upper surface of the steam tank (5) is provided with a gas collecting hood (16). The upper surface of the gas collecting hood (16) is connected to a fifth pipeline (17). The other end of the fifth pipeline (17) is connected to a condenser (18).

2. The evaporation stock solution temperature raising system according to claim 1, characterized in that: The water inlet end of the first liquid pump (3) is arranged inside the filtering tank (1), and the end of the first pipeline (4) far from the first liquid pump (3) penetrates through the steam tank (5) and the primary temperature tank (7).

3. The temperature raising system for evaporation stock solution according to claim 1, wherein: The water inlet end of the second liquid pump (8) penetrates through the steam tank (5) and the primary temperature tank (7), and the end of the second pipeline (9) far from the second liquid pump (8) is arranged inside the heating tank (10).

4. The temperature raising system for evaporation stock solution according to claim 1, wherein: The water inlet end of the third liquid pump (11) is arranged inside the heating tank (10), and the end of the third pipeline (12) far from the third liquid pump (11) is arranged inside the evaporator tank (13).

5. The temperature-raising system for evaporation stock solution according to claim 1, wherein: The water inlet end of the air pump (14) is arranged inside the evaporator tank (13), and the end of the fourth pipeline (15) far from the air pump (14) is arranged inside the steam tank (5).

6. The temperature raising system for evaporation stock solution according to claim 1, wherein: The lower surface of the gas collecting hood (16) is communicated with the steam tank (5), and the end of the fifth pipeline (17) far from the condenser (18) is communicated with the gas collecting hood (16).

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