Circulating flushing device for low-temperature water tank of hot water station for preparing aluminum oxide

Abstract

The utility model relates to the technical field of low-temperature water tank flushing, and provides a hot water station low-temperature water tank circulating flushing device for aluminum oxide preparation, which comprises an annular pipeline, a side plate is fixed on the outer side of the annular pipeline, the side plate is fixed on the side wall of a low-temperature water tank through a bolt, and a plurality of spray pipes are arranged on the bottom wall of the annular pipeline in a central symmetry manner; the water inlet pipeline is in threaded connection with the side wall of the annular pipeline, and one end of the water inlet pipeline penetrates through the side wall of the low-temperature water tank and is provided with an electromagnetic valve; the adjusting assembly is arranged below the annular pipeline, and the adjusting assembly is used for adjusting the deflection angle of the spray pipe; according to the technical scheme, the defect problem of a common low-temperature water tank cleaning method in the prior art is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of low-temperature water tank rinsing equipment, specifically to a low-temperature water tank circulation rinsing device for a hot water station used in alumina preparation. Background Technology

[0002] Alumina ore has a complex composition. After leaching and separation sedimentation processes, the red mud washing liquid still contains a large number of solid particles. Before entering the hot water station, the red mud washing liquid settles in the low-temperature water tank. Some of the solid particles settle at the bottom and walls of the tank. In addition, the washing liquid has a high alkali content, which easily forms scale on the side walls of the low-temperature water tank, leading to problems such as high equipment corrosion risk and increased energy consumption of the hot water pump at the subsequent hot water station.

[0003] To address the above issues, common cleaning methods for low-temperature water tanks include manual cleaning, chemical cleaning, and mechanical removal. Manual cleaning involves lowering professional cleaning personnel into the tank using a hoist suspended from the top and close to the tank wall during the tank's shutdown period. Pneumatic and electric picks are then used to clean the tank walls from top to bottom. This method is thorough and highly flexible, but it suffers from long construction periods, high costs, and significant safety risks for workers. Chemical cleaning primarily targets scaling on the tank walls, using high-temperature alkaline solutions to wash away the scale, achieving excellent results. However, this method has limitations such as short maintenance cycles and the ability to treat relatively thin scale. Mechanical removal uses blades and water flow to clean the tank walls, but it results in significant equipment wear, a limited cleaning range, and difficulty in cleaning corners, leading to residue buildup. Utility Model Content

[0004] This invention proposes a low-temperature water tank circulation rinsing device for hot water stations used in alumina preparation, which solves the above-mentioned technical problems.

[0005] The technical solution of this utility model is as follows:

[0006] A low-temperature water tank circulation rinsing device for a hot water station used in alumina preparation includes:

[0007] A ring-shaped pipe with a side plate fixed to its outer side. The side plate is fixed to the side wall of the low-temperature water tank by bolts. Several spray pipes are symmetrically installed at the center of the bottom wall of the ring-shaped pipe.

[0008] A water inlet pipe is screwed onto the side wall of the annular pipe, and one end of the water inlet pipe passes through the side wall of the low-temperature water tank and is equipped with a solenoid valve.

[0009] An adjustment assembly is installed below the annular pipe and is used to adjust the deflection angle of the nozzle.

[0010] Preferably, the bottom wall of the annular pipe is symmetrically fixed with several sets of ear plates, each set having two ear plates, and the nozzle is rotatably installed between the corresponding two ear plates. The top end of the nozzle is connected to the bottom of the inner cavity of the annular pipe through a connecting pipe.

[0011] Preferably, the adjusting assembly includes an annular plate located below the annular pipe, and a plurality of sliding sleeves are symmetrically and rotatably mounted on the inner wall of the annular plate;

[0012] The sliding sleeve is slidably fitted onto the outside of the corresponding nozzle;

[0013] Several mounting bases are symmetrically fixed to the outer wall of the annular plate;

[0014] A threaded post is rotatably mounted on the top wall of one side of the mounting base, and a knob is fixed to the top of the threaded post;

[0015] The top walls of the remaining mounting bases are all fixed with guide shafts, and the top ends of the guide shafts are all fixed with limit plates.

[0016] Preferably, the threaded post is screwed through the top wall of the side plate, and the guide shaft slides through the top wall of the side plate.

[0017] Preferably, the side wall of the side plate is provided with a plurality of mounting holes evenly distributed, and the side wall of the side plate is provided with a through groove corresponding to the position of the water inlet pipe.

[0018] Preferably, the annular pipe has a connecting hole on its side wall, and one end of the water inlet pipe is screwed into the connecting hole.

[0019] Preferably, the connection point between the water inlet pipe and the connecting hole is wrapped with PTFE tape.

[0020] Preferably, the solenoid valve is connected to an external controller, which is used to control the solenoid valve to start at a time.

[0021] Preferably, the connecting pipe is a flexible metal tube.

[0022] The beneficial effects of this utility model are as follows:

[0023] In this invention, a nozzle is installed to spray water onto the side wall of the low-temperature water tank. The nozzle is positioned tangentially to the side wall of the low-temperature water tank, utilizing hydraulic force to flush and agitate the sludge at the bottom of the pipe. This ensures that the pollutants in the sludge are fully mixed with the water. The resulting mud-water mixture swirls under the influence of subsequent circulating water, further carrying up the sludge adhering to the bottom of the pipe. The sludge is then removed through sedimentation and filtration processes. The bottom flow circulation principle is used to self-circulate and flush the bottom sludge, thereby reducing the amount of sludge at the bottom. This design allows for… Even without a stirring device, the tank can still effectively flush away the sediment that settles at the bottom. The circulation flushing time and water pressure can be adjusted according to the thickness of the sediment and the stubbornness of the scale buildup, thoroughly cleaning the sediment and scale from the bottom and side walls of the low-temperature water tank without requiring additional tank shutdowns. This extends the tank cleaning cycle, maintains the continuity and efficiency of production, improves the smoothness of the circulating water flow from the low-temperature water tank to the hot water station, increases the efficiency of the hot water station, reduces sediment accumulation, and lowers the energy waste caused by the heat transfer efficiency of the hot water pump, thus improving environmental efficiency. The adjustable components also allow for adjustment of the spray nozzle deflection angle to adapt to different low-temperature water tank installation requirements. Attached Figure Description

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0025] Figure 1 This is a top view of the external structure of this utility model;

[0026] Figure 2 This is a perspective view of the external structure of this utility model from below;

[0027] Figure 3 This is a schematic diagram of the structure of the water inlet pipe and the annular pipe in the separated state of this utility model;

[0028] Figure 4 This is a perspective view of the bottom structure of the annular pipe of this utility model;

[0029] Figure 5 This is a three-dimensional view of the adjusting component structure of this utility model.

[0030] In the diagram: 1. Annular pipe; 2. Side plate; 3. Inlet pipe; 4. Solenoid valve; 5. Spray nozzle; 6. Through groove; 7. Adjustment assembly; 71. Annular plate; 72. Sliding sleeve; 73. Mounting base; 74. Threaded column; 75. Knob; 76. Guide shaft; 77. Limiting plate; 8. Mounting hole; 9. Ear plate; 10. Connecting pipe; 11. Connecting hole. Detailed Implementation

[0031] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0032] Example 1

[0033] like Figures 1-4 As shown, this embodiment proposes:

[0034] A low-temperature water tank circulation rinsing device for a hot water station used in alumina preparation includes:

[0035] An annular pipe 1 has a side plate 2 fixed to its outer side. The side plate 2 is fixed to the side wall of the low temperature water tank by bolts. Several spray pipes 5 are symmetrically installed at the center of the bottom wall of the annular pipe 1.

[0036] Water inlet pipe 3 is screwed onto the side wall of the annular pipe 1. One end of water inlet pipe 3 passes through the side wall of the low temperature water tank and is equipped with a solenoid valve 4.

[0037] Adjustment component 7 is installed below the annular pipe 1 and is used to adjust the deflection angle of the nozzle 5.

[0038] Several sets of ear plates 9 are symmetrically fixed to the bottom wall of the annular pipe 1. Each set of ear plates 9 consists of two pieces. The nozzle 5 is rotatably installed between the corresponding two ear plates 9. The top end of the nozzle 5 is connected to the bottom of the inner cavity of the annular pipe 1 through a connecting pipe 10. The connecting pipe 10 is a flexible metal hose.

[0039] The side wall of the side plate 2 is provided with a number of mounting holes 8 evenly distributed, and the side wall of the side plate 2 is provided with a through groove 6 corresponding to the position of the water inlet pipe 3.

[0040] A connection hole 11 is provided on the side wall of the annular pipe 1, and one end of the water inlet pipe 3 is screwed into the connection hole 11.

[0041] The connection point between the water inlet pipe 3 and the connecting hole 11 is wrapped with PTFE tape.

[0042] The solenoid valve 4 is connected to an external controller, which is used to control the solenoid valve 4 to start at regular intervals.

[0043] In this embodiment, the annular pipe 1 is fixed to the bottom of the low-temperature water tank at a position of 0.5m using a side plate 2 and bolts. It is connected to an external high-pressure water source via an inlet pipe 3. The inlet pipe 3 is controlled by a solenoid valve 4, which is opened periodically by an external controller. External water flows into the annular pipe 1 under pressure and is sprayed onto the side wall of the low-temperature water tank through a nozzle 5 at the bottom. The nozzle 5 is positioned tangentially to the side wall of the low-temperature water tank, using hydraulic force to flush and agitate the sludge at the bottom of the pipe, ensuring thorough mixing of pollutants with the water. The resulting mud-water mixture swirls under the influence of subsequent circulating water, further carrying up the sludge adhering to the bottom of the pipe. The sludge is then removed through sedimentation and filtration processes, utilizing the bottom flow circulation principle for self-circulation flushing. An adjustment component 7 is provided to adjust the deflection angle of the nozzle 5 to adapt to different low-temperature water tank installation requirements. The connection between the inlet pipe 3 and the connecting hole 11 is wrapped with PTFE tape to prevent leakage.

[0044] Example 2

[0045] like Figure 1 and Figure 5 As shown, based on the same concept as Embodiment 1 above, this embodiment also proposes:

[0046] The adjusting assembly 7 includes an annular plate 71, which is located below the annular pipe 1. Several sliding sleeves 72 are symmetrically and rotatably installed on the inner wall of the annular plate 71.

[0047] The sliding sleeve 72 is slidably fitted onto the outside of the corresponding nozzle 5;

[0048] Several mounting seats 73 are symmetrically fixed to the outer wall of the annular plate 71;

[0049] A threaded post 74 is rotatably mounted on the top wall of one side mounting base 73, and a knob 75 is fixed to the top of the threaded post 74;

[0050] The top walls of the remaining mounting bases 73 are all fixed with guide shafts 76, and the top ends of the guide shafts 76 are all fixed with limit plates 77.

[0051] The threaded post 74 is screwed through the top wall of the side plate 2, and the guide shaft 76 slides through the top wall of the side plate 2.

[0052] In this embodiment, the adjustment component 7 is used to adjust the deflection angle of the nozzle 5 to adapt to different low-temperature water tank installation requirements. When it is necessary to adjust the deflection angle of the nozzle 5, the knob 75 is turned, which drives the threaded column 74 to rotate. During the rotation of the threaded column 74, the annular plate 71 moves up and down. During the movement of the annular plate 71, under the action of the sliding sleeve 72, the nozzle 5 is deflected until the deflection angle of the nozzle 5 meets the actual requirements.

[0053] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A low-temperature water tank circulation rinsing device for a hot water station in alumina preparation, characterized in that, include: A ring pipe (1) is provided with a side plate (2) fixed on the outside of the ring pipe (1). The side plate (2) is fixed to the side wall of the low temperature water tank by bolts. Several spray pipes (5) are symmetrically installed on the bottom wall of the ring pipe (1). Water inlet pipe (3), the water inlet pipe (3) is screwed to the side wall of the annular pipe (1), and one end of the water inlet pipe (3) passes through the side wall of the low temperature water tank and is equipped with a solenoid valve (4). Adjustment component (7), which is installed below the annular pipe (1), is used to adjust the deflection angle of the nozzle (5).

2. The low-temperature water tank circulation rinsing device for alumina preparation hot water station according to claim 1, characterized in that, The bottom wall of the annular pipe (1) is symmetrically fixed with several sets of ear plates (9), each set of ear plates (9) has two pieces, the nozzle (5) is rotatably installed between the corresponding two ear plates (9), and the top of the nozzle (5) is connected to the bottom of the inner cavity of the annular pipe (1) through a connecting pipe (10).

3. The low-temperature water tank circulation rinsing device for alumina preparation hot water station according to claim 1, characterized in that, The adjusting assembly (7) includes an annular plate (71), which is located below the annular pipe (1). Several sliding sleeves (72) are symmetrically and rotatably installed on the inner wall of the annular plate (71). The sliding sleeve (72) is slidably sleeved on the outside of the corresponding nozzle (5); The outer wall of the annular plate (71) is symmetrically fixed with several mounting seats (73); A threaded post (74) is rotatably mounted on the top wall of a mounting base (73) on one side, and a knob (75) is fixed to the top of the threaded post (74). The top walls of the other mounting bases (73) are all fixed with guide shafts (76), and the top ends of the guide shafts (76) are all fixed with limit plates (77).

4. The low-temperature water tank circulation rinsing device for alumina preparation hot water station according to claim 3, characterized in that, The threaded post (74) is threaded through the top wall of the side plate (2), and the guide shaft (76) slides through the top wall of the side plate (2).

5. The low-temperature water tank circulation rinsing device for alumina preparation hot water station according to claim 1, characterized in that, The side plate (2) has a number of mounting holes (8) evenly distributed on its side wall, and a through groove (6) is provided on the side wall of the side plate (2) corresponding to the position of the water inlet pipe (3).

6. The low-temperature water tank circulation rinsing device for alumina preparation hot water station according to claim 1, characterized in that, The annular pipe (1) has a connecting hole (11) on its side wall, and one end of the water inlet pipe (3) is screwed into the connecting hole (11).

7. The low-temperature water tank circulation rinsing device for alumina preparation hot water station according to claim 6, characterized in that, The connection point between the water inlet pipe (3) and the connecting hole (11) is wrapped with raw material tape.

8. The low-temperature water tank circulation rinsing device for alumina preparation hot water station according to claim 1, characterized in that, The solenoid valve (4) is connected to an external controller, which is used to control the solenoid valve (4) to start at regular intervals.

9. The low-temperature water tank circulation rinsing device for alumina preparation hot water station according to claim 2, characterized in that, The connecting pipe (10) is a metal flexible hose.

Images