Alkali crystallization and separation equipment

Abstract

The utility model discloses water alkali crystallization separation equipment which comprises a shell, a separator, a spraying device, a downcomer and a sealing plate, the shell is provided with a steam inlet and a steam outlet, an alkali liquor collecting area is arranged at the lower end in the shell, the shell is further provided with a liquid outlet, the separator is arranged between the steam inlet and the steam outlet, the separator is used for separating alkali in steam, and the spraying device is used for spraying the alkali liquor in the steam. The spraying device is connected to the interior of the shell and used for spraying the separator, the downcomer is connected to the separator and used for discharging alkali liquor of the separator into the alkali liquor collecting area, and the sealing plate is arranged between the exhaust area of the separator and the steam outlet. Alkali crystals in steam are separated through the separator, alkali particles crystallized on the surface of the separator are dissolved through the spraying device and washed into the alkali liquor collecting area to be collected, and therefore the function of separating and collecting the alkali liquor in the steam is achieved.

Description

Technical Field

[0001] This utility model relates to the field of alkali production equipment technology, and in particular to a water-alkali crystallization and separation device. Background Technology

[0002] In the delicate and complex chemical process of caustic soda production, especially when using advanced ion-exchange membrane electrolysis to produce high-quality caustic soda, the concentration control of caustic soda becomes a key factor determining product quality. This is because the concentration of caustic soda not only directly relates to its efficiency and stability in practical applications but also profoundly affects the production efficiency and cost-effectiveness of downstream products. Therefore, accurately controlling and maintaining the concentration of the caustic soda solution within the optimal range is crucial for ensuring the smooth operation of the entire production chain and the continuous stability of product quality.

[0003] In the caustic soda production process, steam inevitably carries a certain amount of alkali solution. If this steam carrying alkali solution is directly recycled or discharged without effective separation and treatment, the alkali components will gradually accumulate, potentially leading to a decrease in the concentration or yield of the final caustic soda product. Meanwhile, with the increasing awareness of environmental protection, there are corresponding requirements for the discharge of pollutants such as wastewater and exhaust gases generated during industrial production. If steam containing alkali solution is directly discharged into the atmosphere without treatment, it will not only cause chemical pollution to the air due to its alkaline components, affecting air quality, but may also enter water bodies and soil through sedimentation and precipitation, causing long-term and irreversible damage to the ecological environment. Utility Model Content

[0004] This application provides a water-alkali crystallization separation device for separating alkali solution from steam.

[0005] This application provides a water-alkali crystallization separation device, including:

[0006] The shell has a steam inlet and a steam outlet, and the lower part of the interior of the shell is an alkaline solution collection area. The shell also has a drain outlet.

[0007] A separator is disposed between the steam inlet and the steam outlet, and the separator is used to separate alkali from the steam.

[0008] A spraying device is connected to the housing and is used to spray the separator.

[0009] A downcomer is connected to the separator, and the downcomer is used to discharge the alkaline solution from the separator to the alkaline solution collection area;

[0010] A sealing plate is disposed between the exhaust zone of the separator and the steam outlet.

[0011] The beneficial effect of the above embodiment is that: the alkali crystals in the steam are separated by the separator, and the alkali particles crystallized on the surface of the separator are dissolved and washed into the alkali collection area by the spray device for collection, thereby realizing the function of separating and collecting alkali in the steam.

[0012] Based on the above embodiments, the embodiments of this application can be further improved as follows:

[0013] In one embodiment of this application, the spraying device includes: a top spraying mechanism disposed at the top of the separator for spraying the separator from the top; and a side spraying mechanism disposed on the side of the separator for spraying the separator from the side. The beneficial effect of this step is that it washes the alkaline particles in the gaps between the baffles in the separator from multiple directions, thereby recovering the alkaline particles and ensuring the working efficiency of the separator.

[0014] In one embodiment of this application, the system further includes a separator mounting bracket installed within the housing. The separator is mounted around the perimeter of the separator mounting bracket. The lower end of the separator mounting bracket is a closed structure, and the upper end of the separator mounting bracket is an open structure communicating with the area surrounding the sealing plate. The beneficial effect of this step is that the separator is fixedly installed using the separator mounting bracket, and steam is restricted to entering the area surrounding the sealing plate only through the separator, thereby ensuring effective steam separation.

[0015] In one embodiment of this application, the system further includes: a first level gauge located at the lower end of the housing for detecting the low level of the alkali solution; and a second level gauge located above the first level gauge for detecting the high level of the alkali solution. The beneficial effect of this step is that detecting the position of the alkali solution using the first and second level gauges facilitates level monitoring and control.

[0016] In one embodiment of this application, it further includes: a first differential pressure gauge connected to the steam outlet; and a second differential pressure gauge connected to the upper part of the housing. The beneficial effect of this step is that by measuring the pressure difference between the two regions using the first and second differential pressure gauges, it is easier to determine the working status of the separator. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a schematic diagram of a water-alkali crystallization separation device;

[0019] Figure 2 This is a schematic diagram of the first structure of the top spraying mechanism;

[0020] Figure 3 This is a schematic diagram of the second structure of the top spraying mechanism;

[0021] Figure 4 This is a schematic diagram of the first structure of the side spraying mechanism;

[0022] Figure 5 This is a schematic diagram of the second structure of the side spraying mechanism;

[0023] Figure 6 This is a schematic diagram of the connector structure;

[0024] Figure 7 A schematic diagram of the structure of the separator fixing bracket.

[0025] The components include: 1 shell, 101 steam inlet, 102 steam outlet, 103 alkali collection area, 104 drain outlet, 105 first level gauge port, 106 second level gauge port, 107 first differential pressure gauge port, and 108 second differential pressure gauge port.

[0026] 2. Separator;

[0027] 3. Spraying device, 301 top spraying mechanism, 302 side spraying mechanism, 303 top support, 304 top liquid inlet pipe, 305 top spraying pipe, 306 side liquid inlet pipe, 307 side spraying pipe, 308 side support.

[0028] 4. Downcomer pipe, 5. Sealing plate, 6. Connecting seat, 7. Separator fixing bracket, 8. Support. Detailed Implementation

[0029] In this application, unless otherwise expressly specified and limited, the terms used should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium. If electrical or electronic equipment is involved, it can also refer to an electrical connection or a communication signal connection, etc. For those skilled in the art, the specific meaning of different terms in this utility model can be understood according to the specific circumstances, and the scope of the specific meaning should be limited to achieving the function of this application.

[0030] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0031] like Figure 1 As shown, a water-alkali crystallization separation device includes: a shell 1, a separator 2, a spray device 3, a downcomer 4, and a sealing plate 5. The shell 1 has a steam inlet 101 and a steam outlet 102. The lower end of the shell 1 is an alkali collection area 103. The shell 1 also has a drain outlet 104. The separator 2 is disposed between the steam inlet 101 and the steam outlet 102. The separator 2 is used to separate alkali from the steam. The spray device 3 is connected to the shell 1 and is used to spray the separator 2. The downcomer 4 is connected to the separator 2 and is used to discharge the alkali from the separator 2 into the alkali collection area 103. The sealing plate 5 is disposed between the exhaust area of ​​the separator 2 and the steam outlet 102.

[0032] In some embodiments of this application, such as Figure 1 As shown, the spraying device 3 includes a top spraying mechanism 301 and a side spraying mechanism 302. The top spraying mechanism 301 is located on the top of the separator 2 and is used to spray the top of the separator 2 from above. The side spraying mechanism 302 is located on the side of the separator 2 and is used to spray the side of the separator 2 from the side. This process washes away alkaline particles from the gaps in the baffles inside the separator 2 from multiple directions, thereby recovering the alkaline particles and ensuring the working efficiency of the separator 2.

[0033] In some embodiments of this application, such as Figure 1-3 As shown, the top spraying mechanism 301 includes: a top support 303, a top liquid inlet pipe 304, a top spraying pipe 305, and top nozzles. The top support 303 is connected to the top inside the housing 1. The top liquid inlet pipe 304 is connected to the top support 303. The top liquid inlet pipe 304 extends to the outer side of the upper end of the housing 1 and is equipped with a top liquid inlet. The top liquid inlet is used to connect to the spraying liquid supply pipe. The lower end of the top liquid inlet pipe 304 is connected to the top spraying pipe 305. The top spraying pipe 305 is connected to the upper part of the baffle plate in the separator 2 by U-bolts in the transverse direction. Multiple top nozzles are arranged at intervals along the length of the pipe below the top spraying pipe 305.

[0034] In some embodiments of this application, such as Figure 2 , 3As shown, the top spray pipe 305 has a quadrilateral structure when viewed from above. The top spray pipe 305 is connected to the inner wall of the housing 1 by the top bracket 303. The top bracket 303 includes a horizontal side and a diagonal side. The horizontal side is connected to the top spray pipe 305 by U-bolts. One end of the diagonal side is connected to the inner wall of the housing 1, and the other end is connected to the horizontal side, so that the top bracket 303 and the housing 1 form a triangular support structure, which stably connects the top spray pipe 305 in the housing 1.

[0035] In some embodiments of this application, such as Figure 1 , 4 As shown in Figure 5, the side spraying mechanism 302 includes: a side liquid inlet pipe 306, a side spraying pipe 307, side nozzles, and a side support 308. The side liquid inlet pipe 306 has an annular structure and is connected to the inner wall of the housing 1. The side spraying pipe 307 has a side liquid inlet that extends from the side of the housing 1 to the outside. The side spraying inlet is used to connect to the spraying liquid supply pipe. The side spraying pipe 307 is arranged vertically. There are multiple side spraying pipes 307, which are arranged sequentially at intervals along the annular axis of the side liquid inlet pipe 306. The side spraying pipes 307 are spaced apart on the side of the baffle plate of the separator 2. Multiple side nozzles are arranged sequentially at intervals along the length of the side of the side spraying pipe 307 facing the baffle plate. The lower end of the side spraying pipe 307 is connected to the inner wall of the housing 1 through the side support 308.

[0036] In some embodiments of this application, such as Figure 1 , 6 As shown, the water alkali crystallization separation equipment also includes: a connecting seat 6, which forms a grid structure and is located in the middle of the inner side of the shell 1. The eight ends of the connecting seat 6 are connected to the inner wall of the shell 1. The connecting seat 6 is used to position the separator 2.

[0037] In some embodiments of this application, such as Figure 1 , 7 As shown, the water-alkali crystallization separation equipment also includes: a separator fixing bracket 7, which is installed in the housing 1. The separator 2 is installed around the separator fixing bracket 7. The lower end of the separator fixing bracket 7 is a closed structure, and the upper end of the separator fixing bracket 7 is an open structure communicating with the area surrounding the sealing plate 5. The separator fixing bracket 7 is used to fix the separator 2 and restrict steam to enter the area formed by the sealing plate 5 only through the separator 2, thereby ensuring that the steam undergoes effective separation.

[0038] In some embodiments of this application, such as Figure 1 , 7As shown, the separator fixing bracket 7 has a square three-dimensional structure. The separator fixing bracket 7 is fixed in the middle of the grid-shaped connecting seat 6. Separators 2 are fixedly installed on all four sides of the separator fixing bracket 7. The separator 2 is an existing device in this field and can be directly purchased. The separator 2 allows steam to enter the interior of the separator fixing bracket 7 only through the separator 2. There are four sealing plates 5. The lower end of the sealing plate 5 is connected to the separator fixing bracket 7, and the upper end is connected to the inner wall of the upper end of the shell 1. The alkali solution is precipitated from the steam and crystallized through the separator 2, thereby achieving the purpose of separating the alkali solution from the steam.

[0039] In some embodiments of this application, such as Figure 1 As shown, the water-alkali crystallization separation equipment also includes: a first level gauge and a second level gauge. The first level gauge is located at the lower end of the shell 1, installed at the first level gauge port 105, and used to detect the low level of the alkali solution. The second level gauge is located above the first level gauge, installed at the second level gauge port 106, and used to detect the high level of the alkali solution. Detecting the alkali solution level using the first and second level gauges facilitates level monitoring and control.

[0040] In some embodiments of this application, such as Figure 1 As shown, the water-alkali crystallization separation equipment also includes: a first differential pressure gauge and a second differential pressure gauge. The first differential pressure gauge is connected to the first differential pressure gauge port 107 at the steam outlet 102, and the second differential pressure gauge is connected to the second differential pressure gauge port 108 at the upper end of the shell 1. By measuring the pressure difference between the two areas using the first and second differential pressure gauges, the working status of the separator 2 can be easily determined. When the pressure difference is greater than the set value, it indicates that the separator 2 is blocked and should be shut down for maintenance.

[0041] In some embodiments of this application, such as Figure 1 As shown, each separator 2 is connected to a downcomer 4 at the bottom. The downcomer 4 is arranged vertically, and the lower end of the downcomer 4 is connected to a bracket connected to the inner wall of the housing 1. The alkaline solution in the separator 2 is introduced into the alkaline solution collection area 103 through the downcomer 4. The drain port 104 arranged in the middle of the lower end of the housing 1 is connected to the pipeline of the alkaline solution collection device.

[0042] In some embodiments of this application, such as Figure 1 As shown, a ring-shaped support 8 is connected around the middle of the outer wall of the housing 1. The support 8 is used to connect the housing 1 to other equipment or brackets, thereby positioning the housing 1.

[0043] When in use, this water-alkali crystallization separation equipment separates the alkali solution in the steam through separator 2, and then uses spray device 3 to wash and dissolve the alkali particles crystallized on the surface of separator 2 into alkali collection area 103 for collection, thereby realizing the function of separating and collecting alkali solution in steam.

[0044] The above are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A water-alkali crystallization separation device, characterized in that, include: The shell has a steam inlet and a steam outlet, and the lower part of the interior of the shell is an alkaline solution collection area. The shell also has a drain outlet. A separator is disposed between the steam inlet and the steam outlet, and the separator is used to separate alkali from the steam. A spraying device is connected to the housing and is used to spray the separator. A downcomer is connected to the separator, and the downcomer is used to discharge the alkaline solution from the separator to the alkaline solution collection area; A sealing plate is disposed between the exhaust zone of the separator and the steam outlet.

2. The water-alkali crystallization separation equipment according to claim 1, characterized in that, The spraying device includes: A top spraying mechanism is installed on top of the separator for spraying the separator from the top. A side spraying mechanism is provided on the side of the separator for spraying the separator from the side.

3. The water-alkali crystallization separation equipment according to claim 1, characterized in that, Also includes: A separator fixing bracket is installed in the housing, and the separator is installed around the separator fixing bracket. The lower end of the separator fixing bracket is a closed structure, and the upper end of the separator fixing bracket is an open structure that communicates with the area surrounding the sealing plate.

4. The water-alkali crystallization separation equipment according to claim 1, characterized in that, Also includes: The first level gauge, located at the lower end of the housing, is used to detect the low level of the alkaline solution; The second level gauge, located above the first level gauge, is used to detect the high level of the alkaline solution.

5. The water-alkali crystallization separation equipment according to claim 1, characterized in that, Also includes: A first differential pressure gauge is connected to the steam outlet; The second differential pressure gauge is connected to the upper part of the housing.

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