Tank body for treating secondary aluminum ash
By using the method of stirring precipitation with conical tank and clean water, the problem of incomplete discharge of precipitates in brine is solved, the purity of brine is improved and the production cost is reduced, and the complete discharge of precipitates and the stability of the tank is achieved.
Patent Information
- Application Number
- CN202323437930.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-16
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2033-12-16
AI Technical Summary
The existing cylindrical tanks for secondary aluminum ash precipitation cause the brine to have precipitation when discharged, which reduces the purity of the brine, makes the precipitate concentrated at the bottom of the tank inconvenient to discharge, and the explosion cost is high.
The second conical tank design is adopted, and precipitation is stirred with clean water instead of aeration stirring. The designed pipeline structure ensures that the precipitation is completely discharged and reduces production costs.
The purity of the brine is improved, the complete discharge of precipitation is achieved, production costs are saved, and the stability and operating efficiency of the tank are improved through the design of the support components and solenoid valves.
Smart Images
Figure CN222150985U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of aluminum ash processing, in particular to a tank body used for processing secondary aluminum ash. Background Art
[0002] Aluminum ash treatment produces concentrated brine, which contains aluminum dust and soluble calcium. Before entering the MVR (mechanical vapor recompression) for evaporation and crystallization, the soluble calcium and aluminum dust contained in the concentrated brine need to be precipitated to obtain brine with higher purity.
[0003] The existing tanks used for secondary aluminum ash precipitation are usually cylindrical. First, the discharge port of this cylindrical tank is generally too close to the bottom of the tank for discharging purified brine, which results in a small amount of precipitation in the brine when the purified brine is discharged, thereby reducing the purity of the brine. Secondly, the sediment in the tank will be concentrated at the bottom of the tank. Because the bottom of the tank is flat, aeration pipes are usually laid flat at the bottom of the tank, and aeration is introduced to stir the sediment so that the sediment is discharged from the sewage outlet of the tank. However, some sediment still cannot be discharged from the sewage outlet of the tank, and needs to be manually cleaned after long-term accumulation; in addition, the compressed air used for explosion increases the production cost. Utility Model Content
[0004] In order to solve the technical problems that the discharge port is too close to the bottom of the tank body, resulting in a small amount of sediment in the brine clear liquid, and the sediment concentrated at the bottom of the tank is inconvenient to discharge, the utility model provides a tank body for treating secondary aluminum ash, which uses a method of stirring and mixing sedimentation with clean water instead of aeration stirring sedimentation. Not only can the sediment be completely discharged, but it also greatly saves production costs.
[0005] The utility model adopts the following technical solutions:
[0006] A tank body for processing secondary aluminum ash, the tank body comprising a first tank body, a second tank body, a support assembly and a separation assembly, the first tank body is arranged on the second tank body and the first tank body is connected to the second tank body, the second tank body is fixedly connected to the support assembly, the support assembly is in contact with the ground, and the orthographic projection area of the top of the second tank body is larger than the orthographic projection area of the bottom of the second tank body;
[0007] The separation assembly includes a first separation part and a second separation part. The first separation part includes a first pipeline, which is arranged on the first tank body and communicated with the first tank body; the second separation part includes a second pipeline and a third pipeline, and the second tank body is communicated with both the second pipeline and the third pipeline. The discharge port is far away from the second tank body, so that when the brine clear liquid flows out from the first pipeline, the brine clear liquid no longer contains calcium carbonate solids and aluminum hydroxide colloids, which solves the problem that the brine clear liquid contains a small amount of precipitation (calcium carbonate solids, aluminum hydroxide colloids), so that the purity of the obtained brine clear liquid is high. At the same time, the precipitation can be completely discharged from the second tank body through the third pipeline; and because the second pipeline is used to stir and mix the clean water to precipitate, the precipitation can be further well discharged from the second tank body through the third pipeline. The method of stirring and mixing the precipitation with clean water replaces the method of aeration stirring precipitation, which greatly saves production costs.
[0008] Furthermore, the support assembly includes a plurality of support rods, the tops of the plurality of support rods are evenly fixed to the bottom of the second tank body, the bottoms of the plurality of support rods are in contact with the ground, and the plurality of support rods are tilted toward the outside. The arrangement of the plurality of support rods ensures high stability in the use of the tank body.
[0009] Furthermore, a driving wheel having a housing is disposed at the bottom of one of the support rods, and rolling wheels are disposed at the bottoms of the remaining support rods; a first positioning hole is disposed on the housing, a second positioning hole is disposed on the ground, and the driving wheel is fixed to the ground through a nut assembly, the first positioning hole, and the second positioning hole. The driving wheel and the plurality of rolling wheels move, thereby realizing the movement of the tank body.
[0010] Furthermore, the nut assembly includes a bolt, which passes through the first positioning hole and is locked on the ground through the second positioning hole. The driving wheel is fixed on the ground through the first positioning hole, the second positioning hole and the nut assembly, thereby keeping the tank body stable.
[0011] Furthermore, the first pipeline, the second pipeline and the third pipeline are all provided with a first electromagnetic valve and a first driving pump. The first electromagnetic valve can automatically open and close the flow of objects in the first pipeline, the second pipeline and the third pipeline.
[0012] Furthermore, the tank body also includes a liquid inlet assembly, the liquid inlet assembly includes at least one liquid inlet portion, the liquid inlet portion includes two liquid inlet pipes, the first tank body is connected to both of the two liquid inlet pipes. The two liquid inlet pipes are used to introduce secondary aluminum ash and sodium hydroxide respectively.
[0013] Furthermore, the liquid inlet section also includes a plurality of liquid inlet boxes and metering valves having the same number as the liquid inlet pipelines, each of the liquid inlet boxes is connected to one end of the liquid inlet pipeline away from the first tank body, and each of the metering valves is arranged on one of the liquid inlet pipelines; each of the liquid inlet boxes is provided with a transparent window. The metering valve is arranged on the liquid inlet pipeline to facilitate people to know the volume of liquid entering the first tank body and the second tank body, so as to ensure the accurate purification of the secondary aluminum ash. The transparent window is arranged to facilitate people to observe the volume of liquid in the liquid inlet box, and if the liquid is insufficient, it can be added in time.
[0014] Furthermore, each of the liquid inlet pipes is provided with a second electromagnetic valve and a second driving pump. The second electromagnetic valve can automatically open and close the flow of objects in the liquid inlet pipe.
[0015] Furthermore, the second tank body is a conical structure.
[0016] Compared with the prior art, the utility model has the following technical effects:
[0017] 1. First, since the orthographic projection area of the top of the second tank body is larger than the orthographic projection area of the bottom of the second tank body, the second tank body is a conical structure, and the connection point between the first pipe and the first tank body is the discharge port of the first tank body, and the discharge port is far away from the second tank body. This makes it possible for the brine clear liquid to no longer contain calcium carbonate solids and aluminum hydroxide colloid when it flows out from the first pipe, thereby solving the problem that the brine clear liquid contains a small amount of precipitation (calcium carbonate solids, aluminum hydroxide colloid), so that the obtained brine clear liquid has high purity.
[0018] 2. At the same time, since the second tank body is a conical structure, the sediment can be completely discharged from the second tank body through the third pipe. And since the second pipe is used to stir and mix the sediment with clean water, the sediment can be further well discharged from the second tank body through the third pipe. And the method of stirring and mixing the sediment with clean water replaces the method of stirring and sedimenting with aeration, which greatly saves production costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a schematic diagram of the structure of a tank for treating secondary aluminum ash in the utility model. Figure 1 ;
[0020] Figure 2 This is a schematic diagram of the structure when the first tank body and the second tank body of the utility model are connected Figure 2 ;
[0021] Figure 3 This is another structural schematic diagram of a tank for treating secondary aluminum ash provided by the utility model. Figure 3 ;
[0022] Figure 4 It is a cross-sectional view of the support rod of the utility model Figure 4 ;
[0023] The numbers in the accompanying drawings are: 1 is the first tank body, 2 is the second tank body, 3 is the supporting assembly, 31 is the supporting rod, 311 is the driving wheel, 3111 is the shell, 312 is the driving member, 313 is the rolling wheel, 4 is the separating assembly, 41 is the first pipeline, 42 is the second pipeline, 43 is the third pipeline, 5 is the liquid inlet part, 51 is the liquid inlet pipeline, 52 is the liquid inlet box; 521 is the transparent window; 53 is the metering valve; 6 is the first solenoid valve, 7 is the first driving pump, 8 is the second solenoid valve, and 9 is the second driving pump. DETAILED DESCRIPTION
[0024] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.
[0025] like Figures 1-2 As shown, the present embodiment provides a tank body for processing secondary aluminum ash, the tank body comprising a first tank body 1, a second tank body 2, a support assembly 3 and a separation assembly 4, the first tank body 1 is arranged on the second tank body 2 and the first tank body 1 is connected with the second tank body 2, that is, the inner cavity of the first tank body 1 is connected with the inner cavity of the second tank body 2, and the inner cavity of the first tank body 1 and the inner cavity of the second tank body 2 after being connected form a reaction chamber. According to the level of process manufacturing, the first tank body 1 and the second tank body 2 can be manufactured as one piece, or they can be manufactured separately and then welded into one piece. The second tank body 2 is fixedly connected to the support assembly 3, and the support assembly 3 is in contact with the ground; after the support assembly 3 is in contact with the ground, it is used to support the first tank body 1 and the second tank body 2. The orthographic projection area of the top of the second tank body 2 is larger than the orthographic projection area of the bottom of the second tank body 2. Refer to Figure 2 Preferably, the second tank body 2 is a conical structure. In addition, the second tank body 2 can also be manufactured into an inverted trapezoidal or other structures that are wide at the top and narrow at the bottom. The separation assembly 4 includes a first separation part and a second separation part. The first separation part includes a first pipe 41, which is arranged on the first tank body 1 and communicates with the first tank body 1; the second separation part includes a second pipe 42 and a third pipe 43, and the second tank body 2 is communicated with both the second pipe 42 and the third pipe 43.
[0026] Among them, secondary aluminum ash, that is, a mixture of concentrated brine, aluminum dust and soluble calcium, is introduced into the reaction chamber, and the salt content of the secondary aluminum ash is 25%. Then sodium hydroxide is introduced into the reaction chamber. If the total mass of secondary aluminum ash and sodium hydroxide in the reaction chamber is a tons, the weight of sodium hydroxide is a*0.3%. tons. After the secondary aluminum ash and sodium hydroxide are mixed and precipitated in the reaction chamber for 24 hours, brine clear liquid, calcium carbonate solid, and aluminum hydroxide colloid will appear in the reaction chamber; calcium carbonate solid and aluminum hydroxide colloid are precipitation. According to different gravity, calcium carbonate solid and aluminum hydroxide colloid fall into the inner cavity of the second tank body 2, while the brine clear liquid fills the inner cavity of the first tank body 1. The connection between the first pipe 41 and the first tank body 1 is the discharge port of the first tank body 1; open the first pipe 41, the brine clear liquid first flows out of the reaction chamber through the first pipe 41, and is transported to the MVR through other transmission mechanisms for evaporation, crystallization, and drying as raw salt. When the brine clear liquid is drained, the second pipe 42 is opened, and clean water is passed to the reaction chamber through the second pipe 42, so that the clean water stirs and mixes the precipitate (calcium carbonate solid, aluminum hydroxide colloid) in the reaction chamber, that is, stirs and mixes the calcium carbonate solid and aluminum hydroxide colloid at the bottom; then the second pipe 42 is closed. Finally, the third pipe 43 is opened, and the connection point between the third pipe 43 and the second tank body 2 is the discharge port of the second tank body 2; the precipitate (calcium carbonate solid, aluminum hydroxide colloid) is discharged from the reaction chamber through the third pipe 43, and then the third pipe 43 is closed. The above operation is repeated, and the tank body continuously purifies the secondary aluminum ash.
[0027] First, since the orthographic projection area of the top of the second tank body 2 is larger than the orthographic projection area of the bottom of the second tank body 2, Figure 2 The second tank body 2 is a conical structure, and the connection point between the first pipe 41 and the first tank body 1 is the discharge port of the first tank body 1, which is far away from the second tank body 2. This means that when the brine clear liquid flows out from the first pipe 41, the brine clear liquid no longer contains calcium carbonate solids and aluminum hydroxide colloids, which solves the problem that the brine clear liquid contains a small amount of precipitation (calcium carbonate solids, aluminum hydroxide colloids), so that the purity of the obtained brine clear liquid is high. At the same time, since the second tank body 2 is a conical structure, the precipitation can be completely discharged from the second tank body 2 through the third pipe 43; and since the second pipe 42 is used to stir and mix the clean water for precipitation, the precipitation can be further well discharged from the second tank body 2 through the third pipe 43. And the method of stirring and mixing the precipitation with clean water replaces the method of aeration stirring precipitation, which greatly saves production costs.
[0028] As an implementable embodiment, the support assembly 3 includes a plurality of support rods 31, the tops of the plurality of support rods 31 are evenly fixed on the bottom of the second tank body 2, the bottoms of the plurality of support rods 31 are in contact with the ground, and the plurality of support rods 31 are tilted toward the outside. In this embodiment, preferably, there are three support rods 31, and the three support rods 31 are tilted toward the outside. The tops of the three support rods 31 are evenly arranged around the first tank body 1, so that the bottoms of the three support rods 31 are evenly in contact with the ground to ensure high stability in use of the tank body. The support rods 31 can also be set to other numbers such as 5, 6, 8, etc., not limited to the numbers listed in this embodiment.
[0029] As an implementation method, the first pipe 41, the second pipe 42 and the third pipe 43 are all provided with a first electromagnetic valve 6 and a first driving pump 7. The first electromagnetic valve 6 automatically opens and closes the flow of objects in the first pipe 41, the second pipe 42 and the third pipe 43. The first driving pump 7 on the first pipe 41 is used to extract brine clear liquid; the first driving pump 7 on the second pipe 42 is used to extract clean water; and the first driving pump 7 on the third pipe 43 is used to extract sediment.
[0030] As an implementation method, the tank body further includes a liquid inlet assembly, the liquid inlet assembly includes at least one liquid inlet portion 5, the liquid inlet portion 5 includes two liquid inlet pipes 51, and the first tank body 1 is connected to both of the two liquid inlet pipes 51. Figure 2 In this embodiment, there is one liquid inlet 5, one of the two liquid inlet pipes 51 is used to pass the secondary aluminum ash (that is, a mixture of concentrated brine, aluminum dust and soluble calcium) into the reaction chamber, and the other of the two liquid inlet pipes 51 is used to pass sodium hydroxide into the reaction chamber. The number of liquid inlets 5 can be set according to demand, so that the tank body can continuously purify the secondary aluminum ash, thereby improving the efficiency of the secondary aluminum ash.
[0031] As an operative embodiment, the liquid inlet portion 5 further includes a plurality of liquid inlet boxes 52 and metering valves 53, the same number as the liquid inlet pipes 51, each of the liquid inlet boxes 52 is connected to one end of the liquid inlet pipe 51 away from the first tank body 1, and each of the metering valves 53 is arranged on one of the liquid inlet pipes 51; each of the liquid inlet boxes 52 is provided with a transparent window 521. One of the liquid inlet boxes 52 is used to hold secondary aluminum ash, that is, a mixture of concentrated brine, aluminum dust and soluble calcium, and one of the liquid inlet pipes 51 is connected to the liquid inlet box 52; another liquid inlet box 52 is used to hold sodium hydroxide, and another liquid inlet pipe 51 is connected to the liquid inlet box 52. The metering valve 53 is arranged on the liquid inlet pipe 51 to facilitate people to know the volume of the liquid entering the reaction chamber, so as to ensure the accurate purification of the secondary aluminum ash.
[0032] The transparent window 521 is provided to facilitate observation of the liquid volume in the liquid inlet tank 52. If the liquid is insufficient, it can be added in time. The transparent window is used together with the metering valve to further ensure the accurate purification of the secondary aluminum ash and enable the tank to operate uninterruptedly.
[0033] As an implementable embodiment, each of the liquid inlet pipes 51 is provided with a second electromagnetic valve 8 and a second driving pump 9. The second electromagnetic valve 8 can automatically open and close the flow of objects in the liquid inlet pipe 51.
[0034] like Figures 3-4 As shown, this embodiment provides another tank body for processing secondary aluminum ash, the tank body includes a first tank body 1, a second tank body 2, a support assembly 3 and a separation assembly 4, the first tank body 1 is arranged on the second tank body 2 and the first tank body 1 is connected to the second tank body 2, the second tank body 2 is fixedly connected to the support assembly 3, and the support assembly 3 is in contact with the ground; after the support assembly 3 is in contact with the ground, the orthographic projection area of the top of the second tank body 2 is larger than the orthographic projection area of the bottom of the second tank body 2, the separation assembly 4 includes a first separation part and a second separation part, the first separation part includes a first pipe 41, the first pipe 41 is arranged on the first tank body 1 and is connected to the first tank body 1; the second separation part includes a second pipe 42 and a third pipe 43, the second tank body 2 is connected to both the second pipe 42 and the third pipe 43.
[0035] The support assembly 3 includes a plurality of support rods 31 , the tops of the plurality of support rods 31 are evenly fixed to the bottom of the second tank body 2 , the bottoms of the plurality of support rods 31 are in contact with the ground, and the plurality of support rods 31 are tilted toward the outside.
[0036] A driving wheel 311 having a housing 3111 is disposed at the bottom of one of the support rods 31, a driving member 312 for driving the driving wheel 311 to move is disposed in the middle of one of the support rods 31, and a rolling wheel 313 is disposed at the bottom of the remaining support rods 31; a first positioning hole is disposed on the housing 3111, a second positioning hole is disposed on the ground, and the driving wheel 311 is fixed to the ground through a nut assembly, the first positioning hole, and the second positioning hole. The nut assembly includes a bolt, which passes through the first positioning hole and is locked on the ground through the second positioning hole.
[0037] During the process of the tank body treating secondary aluminum ash, the driving wheel 311 is fixed to the ground through the first positioning hole, the second positioning hole and the nut assembly, so that the support rod 31, the first tank body 1 and the second tank body 2 remain fixed, thereby making the tank body stable. When the work site changes or other situations occur where the tank body needs to be moved, the bolts are removed from the first positioning hole and the second positioning hole, that is, removed from the driving wheel 311, and the driving member 312 is started, and the driving member 312 drives the driving wheel 311 and the multiple rolling wheels 313 to move at this time, thereby realizing the movement of the tank body.
[0038] Further, see Figure 4 The driving member 312 is a driving motor, and the output shaft of the driving motor is fixedly connected to the driving gear.
[0039] The embodiments described above are only preferred embodiments of the present invention and are only used to explain the present invention, not to limit the scope of implementation of the present invention. For those skilled in the art, other implementation methods can certainly be easily made by replacement or modification based on the technical contents disclosed in this specification. Therefore, all changes and improvements made to the principles and process conditions of the present invention should be included in the scope of the patent application of the present invention.
Claims
1. A tank for treating secondary aluminum ash, characterized in that: The tank body comprises a first tank body (1), a second tank body (2), a support assembly (3) and a separation assembly (4); the first tank body (1) is arranged on the second tank body (2) and the first tank body (1) is in communication with the second tank body (2); the second tank body (2) is fixedly connected to the support assembly (3); the support assembly (3) is in contact with the ground; and the orthographic projection area of the top of the second tank body (2) is larger than the orthographic projection area of the bottom of the second tank body (2); The separation assembly (4) comprises a first separation part and a second separation part, the first separation part comprising a first pipe (41), the first pipe (41) being arranged on the first tank body (1) and being in communication with the first tank body (1); the second separation part comprising a second pipe (42) and a third pipe (43), the second tank body (2) being in communication with both the second pipe (42) and the third pipe (43).
2. The tank body according to claim 1, characterized in that: The support assembly (3) comprises a plurality of support rods (31), the tops of the plurality of support rods (31) are evenly fixed to the bottom of the second tank body (2), the bottoms of the plurality of support rods (31) are in contact with the ground, and the plurality of support rods (31) are arranged to be inclined toward the outside.
3. The tank body according to claim 2, characterized in that: A driving wheel (311) having a housing (3111) is provided at the bottom of one of the support rods (31), and a rolling wheel (313) is provided at the bottom of the remaining support rods (31); a first positioning hole is provided on the housing (3111), a second positioning hole is provided on the ground, and the driving wheel (311) is fixed to the ground via a nut assembly, the first positioning hole, and the second positioning hole.
4. The tank body according to claim 3, characterized in that: The nut assembly includes a bolt, which passes through the first positioning hole and is locked on the ground through the second positioning hole.
5. The tank body according to claim 1, characterized in that: The first pipeline (41), the second pipeline (42) and the third pipeline (43) are each provided with a first solenoid valve (6) and a first driving pump (7).
6. The tank body according to claim 1, characterized in that: The tank body further comprises a liquid inlet assembly, the liquid inlet assembly comprising at least one liquid inlet portion (5), the liquid inlet portion (5) comprising two liquid inlet pipes (51), and the first tank body (1) is in communication with both of the liquid inlet pipes (51).
7. The tank body according to claim 6, characterized in that: The liquid inlet portion (5) further comprises a plurality of liquid inlet boxes (52) and metering valves (53) the same number as the liquid inlet pipes (51); each of the liquid inlet boxes (52) is in communication with an end of the liquid inlet pipe (51) away from the first tank body (1); each of the metering valves (53) is arranged on one of the liquid inlet pipes (51); and each of the liquid inlet boxes (52) is provided with a transparent window (521).
8. The tank body according to claim 6, characterized in that: Each of the liquid inlet pipes (51) is provided with a second solenoid valve (8) and a second drive pump (9).
9. The tank body according to any one of claims 1 to 8, characterized in that: The second tank body (2) is a conical structure.