Sewage treatment device for producing aluminum fluoride

Abstract

The utility model discloses a sewage treatment device for producing aluminum fluoride, which comprises a treatment box, a feeding pipeline is mounted in the middle of the treatment box, and an annular sewage inlet pipe is arranged at the top of the inner wall of the treatment box. A first motor is arranged at the top of the treatment box and can drive a stirring shaft located in the treatment box to rotate, and a cleaning brush is arranged on the upper portion of the stirring shaft and makes contact with the inner wall of the treatment box. The utility model relates to the technical field of aluminum fluoride production, in particular to a sewage treatment device for aluminum fluoride production, which can be used for carrying out centrifugal filtration and separation on precipitates generated in sewage treatment by arranging a centrifugal filtration mechanism, independently cleaning the separated precipitates, and introducing separated wastewater into a waste discharge pipeline, so that the sewage treatment device is simple in structure and convenient to use. Furthermore, a cleaning brush is arranged in the treatment device, so that the sediment can be prevented from blocking the feeding hole.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum fluoride production, in particular to a sewage treatment device for producing aluminum fluoride. Background Art

[0002] The sewage produced in aluminum fluoride production mainly contains inorganic salts and a small amount of fluorides (hydrogen fluoride). Since fluorides are toxic, the sewage needs to be treated accordingly. Currently, the mainstream treatment method is to add an alkaline substance (such as calcium hydroxide solution) to the sewage to neutralize the fluorides in the sewage, and then discharge it.

[0003] Since the product produced by the above neutralization reaction (i.e., calcium fluoride) contains precipitates, the current waste discharge method is to directly discharge the waste (including precipitates) together. Therefore, the harm caused by the precipitates to the waste discharge pipeline is ignored. When more and more precipitates accumulate in the pipeline, it is easy to block the pipeline. Secondly, the above neutralization reaction is an exothermic reaction. As the reaction proceeds, the heat inside the device gradually accumulates, which may lead to an increase in the internal pressure of the device, and then may cause an explosion. Summary of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a sewage treatment device for producing aluminum fluoride, which solves the problems of easy blockage and low safety of the existing sewage treatment device for aluminum fluoride production.

[0006] (II) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solutions: A sewage treatment device for producing aluminum fluoride, including a treatment tank, in the middle of which a feed pipeline is installed, and a circular sewage inlet pipe is arranged at the top of the inner wall of the treatment tank.

[0008] A first motor is arranged at the top of the treatment tank, and the first motor can drive a stirring shaft located inside the treatment tank to rotate. A cleaning brush is arranged at the upper part of the stirring shaft, and the cleaning brush is in contact with the inner wall of the treatment tank.

[0009] The discharge port at the bottom of the treatment tank is connected to an external filter tank through a pump and a pipeline. A support plate that can be hermetically connected is arranged at the top of the filter tank. A second motor is arranged on the support plate, and the output end of the second motor is connected to a rotating shaft. The rotating shaft is located inside the filter tank, and a centrifugal filter cylinder is installed at the end of the rotating shaft;

[0010] The centrifugal filter cylinder can be raised to the outside of the filter tank through a lifting component.

[0011] A waste discharge port is arranged at the bottom of the filter tank.

[0012] As a further preference, the feed pipeline has a plurality of feed inlets, and all the plurality of feed inlets communicate with the inner cavity of the treatment tank.

[0013] As a further preference, the pipeline includes a telescopic flexible pipe, and the telescopic movement of the flexible pipe can cooperate with the lifting of the centrifugal filter cylinder.

[0014] As a further preference, the lifting assembly includes two sets of third motors and lead screws located on the filter tank. The lead screws are driven by the third motors, and a liftable frame is installed between the lead screws in a threaded fit manner. The frame is movably connected to the centrifugal filter cylinder.

[0015] As a further preference, a cooling sandwich layer is arranged in the inner cavity of the treatment tank, and a water inlet and a water outlet are respectively arranged on the cooling sandwich layer.

[0016] (III) Beneficial effects

[0017] The utility model provides a sewage treatment device for producing aluminum fluoride, which has the following beneficial effects:

[0018] In the sewage treatment device for producing aluminum fluoride, through the arrangement of the centrifugal filtration mechanism, the precipitates generated in sewage treatment can be centrifugally filtered and separated. The separated precipitates are cleaned separately, and the separated wastewater is then connected to the waste discharge pipeline, thereby preventing the problem of pipeline blockage caused by precipitates. Further, by arranging a cleaning brush inside the treatment device, the blockage of the feed inlet by precipitates can be prevented. Secondly, by arranging a cooling sandwich layer inside the device, the heat generated in the neutralization reaction process can be absorbed, thereby ensuring the stability of the internal temperature and air pressure of the device and ensuring safety. Description of the drawings

[0019] Figure 1 It is a schematic structural diagram of the utility model.

[0020] In the figure: 1, treatment tank; 2, feed pipeline; 3, sewage inlet pipe; 4, first motor; 5, stirring shaft; 6, cleaning brush; 7, pump; 8, pipeline; 81, flexible pipe; 9, filter tank; 10, support plate; 11, second motor; 12, rotating shaft; 13, centrifugal filter cylinder; 14, lead screw; 15, third motor; 16, frame; 17, waste discharge port; 18, cooling sandwich layer; 19, water inlet; 20, water outlet. Specific embodiments

[0021] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] As Figure 1 shown, the present invention provides a technical solution: a sewage treatment device for producing aluminum fluoride, including a treatment tank 1. A feed pipe 2 is installed in the middle of the treatment tank 1. The feed pipe 2 has a plurality of feed ports, and all the feed ports communicate with the inner cavity of the treatment tank 1. The advantage of setting a plurality of feed ports is that it can be more fully mixed with the sewage. A circular sewage inlet pipe 3 is arranged at the top of the inner wall of the treatment tank 1.

[0023] A first motor 4 is arranged at the top of the treatment tank 1. The first motor 4 can drive a stirring shaft 5 located inside the treatment tank 1 to rotate. A cleaning brush 6 is arranged on the upper part of the stirring shaft 5, and the cleaning brush 6 contacts the inner wall of the treatment tank 1.

[0024] We can also install a PH display meter (not shown in the figure) in the treatment tank 1 to judge whether the neutralization reaction is completely completed.

[0025] A cooling sandwich layer 18 is arranged in the inner cavity of the treatment tank 1. An inlet 19 and an outlet 20 are respectively arranged on the cooling sandwich layer 18. Cold water enters through the inlet 19 and is discharged through the outlet 20 after absorbing heat. We can also set a heat exchanger to achieve the purpose of circulating cooling.

[0026] The discharge port at the bottom of the treatment tank 1 is communicated with an external filtration tank 9 through a pump 7 and a pipe 8. The pipe 8 includes a telescopic flexible pipe 81. The telescopic flexible pipe 81 can cooperate with the lifting of the centrifugal filtration cylinder 13 through its own telescopic movement. When the centrifugal filtration cylinder 13 rises, the flexible pipe 81 extends accordingly. A support plate 10 that can be hermetically connected is arranged at the top of the filtration tank 9. The support plate 10 rises and falls together with the centrifugal filtration cylinder 13. A second motor 11 is arranged on the support plate 10. The output end of the second motor 11 is connected with a rotating shaft 12. The rotating shaft 12 is located inside the filtration tank 9, and a centrifugal filtration cylinder 13 is installed at the end of the rotating shaft 12.

[0027] The centrifugal filtration cylinder 13 can rise to the outside of the filtration tank 9 through a lifting assembly. The lifting assembly includes two groups of third motors 15 and lead screws 14 arranged on the filtration tank 9. The lead screws 14 are driven by the third motors 15. A liftable frame 16 is installed between the lead screws 14 in a threaded fit manner. The frame 16 is movably connected with the centrifugal filtration cylinder 13.

[0028] A waste discharge port 17 is provided at the bottom of the filtration tank 9.

[0029] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0030] During use, alkaline substances are put into the treatment tank 1 through the feed pipe 2. Then, the sewage inlet pipe 3 is connected, and sewage is introduced into the treatment tank 1 to be mixed with the alkaline substances. The first motor 4 is turned on to drive the stirring shaft 5 to rotate, and then the two are fully mixed and stirred to enable the neutralization reaction to proceed fully. In order to prevent the sediment generated during the reaction from blocking the inlet of the feed pipe 2, the stirring shaft 5 drives the cleaning brush 6 to rotate, thereby cleaning the inner wall of the treatment tank 1 to avoid blockage.

[0031] The water inlet 19 is opened to introduce external cold water. The cold water enters the cooling jacket 18, which can cool down the inside of the treatment tank 1 to prevent the internal temperature from rising, resulting in increased air pressure and reducing the risk of accidents.

[0032] Then, the pump 7 is turned on, and the wastewater (including sediment) is transported to the filtration tank 9 through the pipe 8. The second motor 11 is turned on to drive the centrifugal filtration cylinder 13 to rotate at a high speed, and the sediment is separated from the wastewater by centrifugal force. The sediment remains in the centrifugal filtration cylinder 13, and the wastewater is discharged through the waste discharge port 17 at the bottom of the filtration tank 9.

[0033] Regarding the treatment of the sediment, the third motor 15 is turned on to drive the lead screw 14 to rotate, and then drive the centrifugal filtration cylinder 13 to rise. When the centrifugal filtration cylinder 13 completely leaves the filtration tank 9, the sediment inside it can be cleaned up.

[0034] In summary, for the sewage treatment device for producing aluminum fluoride, by setting a centrifugal filtration mechanism, the sediment generated in sewage treatment can be centrifugally filtered and separated. The separated sediment is cleaned separately, and the separated wastewater is then connected to the waste discharge pipe, thereby preventing the problem of sediment blocking the pipe. Further, by setting a cleaning brush inside the treatment device, sediment blocking the feed inlet can be prevented. Secondly, by setting a cooling jacket inside the device, the heat generated during the neutralization reaction can be absorbed, thereby ensuring the stability of the internal temperature and air pressure of the device and ensuring safety.

[0035] It should be noted that all the electrical components mentioned in this article are electrically connected to the external main controller and the 220V or 380V mains power supply. The main controller can be a conventional known device such as a computer for control. Its control principle, internal structure, control switch method, etc. are all conventional means of the existing technology and are directly cited here without further elaboration. In this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0036] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sewage treatment device for producing aluminum fluoride, characterized in that: It comprises a treatment box (1), a feed pipe (2) is installed in the middle of the treatment box (1), and an annular sewage inlet pipe (3) is arranged on the top of the inner wall of the treatment box (1); A first motor (4) is arranged on the top of the processing box (1), and the first motor (4) can drive a stirring shaft (5) located inside the processing box (1) to rotate. A cleaning brush (6) is arranged on the upper part of the stirring shaft (5), and the cleaning brush (6) contacts the inner wall of the processing box (1); The discharge port at the bottom of the processing box (1) is connected to an external filter box (9) through a pump (7) and a pipeline (8); a support plate (10) which can be sealed is provided on the top of the filter box (9); a second motor (11) is provided on the support plate (10); an output end of the second motor (11) is connected to a rotating shaft (12); the rotating shaft (12) is located in the filter box (9); and a centrifugal filter cartridge (13) is installed at the end of the rotating shaft (12); The centrifugal filter cartridge (13) can be lifted to the outside of the filter box (9) by means of a lifting assembly; The bottom of the filter box (9) is provided with a waste discharge port (17).

2. A sewage treatment device for producing aluminum fluoride according to claim 1, characterized in that: The feed pipe (2) has a plurality of feed ports, and the plurality of feed ports are all connected to the inner cavity of the processing box (1).

3. A sewage treatment device for producing aluminum fluoride according to claim 1, characterized in that: The pipeline (8) comprises a telescopic soft pipe (81), and the soft pipe (81) can cooperate with the lifting and lowering of the centrifugal filter cartridge (13) through its own telescopic movement.

4. A sewage treatment device for producing aluminum fluoride according to claim 1, characterized in that: The lifting assembly comprises two sets of third motors (15) and screw rods (14) located on the filter box (9); the screw rods (14) are driven by the third motors (15); a liftable frame (16) is threadedly mounted between the screw rods (14); and the frame (16) is movably connected to the centrifugal filter cartridge (13).

5. A sewage treatment device for producing aluminum fluoride according to claim 1, characterized in that: The inner cavity of the processing box (1) is provided with a cooling interlayer (18), and the cooling interlayer (18) is respectively provided with a water inlet (19) and a water outlet (20).

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