Dust treatment device for lithium carbonate production

Abstract

The invention provides a lithium carbonate production dust treatment device, and belongs to the technical field of dust separation devices.The lithium carbonate production dust treatment device comprises a filter tower and a placement box, a fixed frame is arranged at the top of the filter tower, a back flushing mechanism is installed on the fixed frame, and a plurality of rotating assemblies are arranged on the back flushing mechanism and used for driving the rotating assemblies to rotate; the rotating assembly comprises a first rotating plate, a rotating rod and a second rotating plate, the two ends of the rotating rod are connected with the first rotating plate and the second rotating plate correspondingly, the first rotating plate, the rotating rod and the second rotating plate are coaxially arranged, an auxiliary circular ring is fixedly installed on the fixed frame, the auxiliary circular ring and the rotating rod are coaxially arranged, and a steel reinforcement framework is arranged between the auxiliary circular ring and the second rotating plate; a filter cloth bag is fixedly mounted on the steel reinforcement framework; the filtering cloth bag can be driven to rotate through rotation of the steel reinforcement framework, shaking of the filtering cloth bag is increased, and therefore dust at wrinkles of the filtering cloth bag is shaken off.

Description

Technical Field

[0001] The present application relates to the technical field of dust separation devices, and in particular to a dust treatment device for lithium carbonate production. Background Art

[0002] In the production process of lithium carbonate, a large amount of dust will be generated in the process of ore grinding, drying, sintering, etc. This dust not only pollutes the environment, but also seriously threatens the health of employees. Therefore, in the production process of lithium carbonate, the application of dust removal equipment is particularly important. With the continuous advancement of technology, the design of filtering devices and filter cloths is also constantly optimized to meet the growing market demand for lithium carbonate.

[0003] In order to increase the surface area of ​​the bag, bag dust collectors often set the bag to a slender state so that it can have a larger filtration area. Now, pleated filter bags are used to increase the surface area. The slender channels of the filter bags will cause the wind speed and pressure to gradually decrease when the backwash airflow passes through, slowing down the expansion speed of the filter bag and reducing the backwash effect. The dust at the end of the filter bag far away from the air outlet is difficult to shake off, and the lower position often contacts the dust-containing gas earlier, making the lower part more prone to clogging.

[0004] Referring to the Chinese patent document with announcement number CN220939626U and titled "A high-temperature bag dust treatment device", after the bag is in use, the extension and retraction of the cylinder can be controlled to drive the brush ring to brush the outer surface of the bag, so as to scrape off the dust on the bag, effectively reducing the subsequent manual cleaning of the dust on the bag surface.

[0005] Referring to the above technical solution, when cleaning the dust on the surface of the pleated filter bag, only a cleaning brush is used to clean the surface of the bag. The dust located at the inner angle of the pleats is difficult to fall off. When using backblowing airflow to clean the dust on the bag, the wind speed and pressure gradually decrease, and the backblowing effect is reduced. The dust on the bag far away from the blowing port is still difficult to fall off. Summary of the invention

[0006] In view of this, the present application provides a lithium carbonate production dust treatment device, which is mainly used to solve the problem that dust at the folds of the filter bag is difficult to fall off.

[0007] In order to solve the above technical problems, the present application provides a lithium carbonate production dust treatment device, including a filter tower and a placement box; a fixed frame is provided on the top of the filter tower, and a backflush mechanism is installed on the fixed frame, and multiple groups of rotating components are arranged on the backflush mechanism, and the backflush mechanism is used to drive the rotating components to rotate, and the rotating components include a first rotating plate, a rotating rod and a second rotating plate, and the two ends of the rotating rod are respectively connected to the first rotating plate and the second rotating plate, and the rotating rod is arranged through the air storage box, and the first rotating plate, the rotating rod and the second rotating plate are coaxially arranged; an auxiliary ring is fixedly installed on the fixed frame, and the auxiliary ring is coaxially arranged with the rotating rod, and a steel frame is arranged between the auxiliary ring and the second rotating plate, and the steel frame is composed of a plurality of steel bars arranged in a circular array, and a filter bag is fixedly installed on the steel frame.

[0008] By adopting the above technical scheme, the airflow blown by the back-blowing mechanism can drive the rotating component to rotate, and the rotating component can drive the steel frame to rotate while rotating. Under the connection of the auxiliary ring, the upper part of the filter bag is fixed and the lower part rotates, thereby reducing the volume inside the filter bag. When other conditions remain constant, when the filter bag returns to its original position and reverses, the pressure is inversely proportional to the volume. The smaller the volume, the greater the pressure. Correspondingly, the shaking-off amplitude of the filter bag can be increased, thereby improving the dust shaking-off efficiency.

[0009] Optionally, the back-blowing mechanism includes a back-blowing high-pressure air bag fixedly mounted on a fixed frame, the back-blowing high-pressure air bag is connected to a blowing pipe, and the blowing pipe is provided with a plurality of blowing ports.

[0010] By adopting the above technical solution, the back-blowing high-pressure air bag can input airflow into the blowing pipe, and the setting of multiple blowing ports can provide airflow to multiple rotating components at the same time, back-blowing multiple filter bags, thereby improving work efficiency.

[0011] Optionally, the air outlets are connected to transition pipes via hoses, the transition pipes are connected to air storage boxes mounted on a fixed frame, the air storage boxes and the rotating rods correspond one to one, and the first rotating plate is disposed in the air storage box.

[0012] By adopting the above technical solution, when the airflow enters the air storage box, the airflow can drive the first rotating plate to rotate, and at the same time, the pressure inside the air storage box increases, which can drive the first rotating plate to rotate and move upward.

[0013] Optionally, the rotating assembly further includes an air storage block rotatably disposed on the first rotating plate, wherein the air storage block is provided in plurality and has a hollow structure inside, and each of the air storage blocks is provided with an air outlet and a plurality of air inlets.

[0014] By adopting the above technical solution, when the gas storage block rotates synchronously with the first rotating plate and moves upward, the air inlet on the gas storage block enters the gas storage box, and the airflow inside the gas storage box can enter the gas storage block through the air inlet; when the airflow input into the gas storage box stops, the airflow inside the gas storage block flows out from the air outlet, the pressure inside the gas storage box decreases, and the first rotating plate can be reversed to return to its original position.

[0015] Optionally, the steel frame ball joint is arranged on the auxiliary ring and the second rotating plate.

[0016] By adopting the above technical solution, when the steel skeleton rotates, the setting of the ball joint can prevent the steel skeleton from bending at the connection between the auxiliary ring and the second rotating plate during rotation, thereby reducing the damage rate of the steel skeleton.

[0017] Optionally, a shock-absorbing spring is arranged around the gas storage block.

[0018] By adopting the above technical solution, when the first rotating plate is reversed and restored to its original position, the supporting force of the shock-absorbing spring can prevent the gas storage block from falling directly onto the gas storage box, thereby preventing the gas storage block from colliding and being damaged.

[0019] Optionally, a plurality of air blowing pipes are provided and each air blowing pipe is provided with a switch valve.

[0020] By adopting the above technical solution, the switch valve can control a single air blowing pipe respectively, and the valve can be switched according to actual needs during use.

[0021] Optionally, the air storage box is provided with a plurality of through holes corresponding one to one with the air storage blocks.

[0022] By adopting the above technical solution, the perforations can make the airflow openings on the air storage block shuttle back and forth inside the air storage box.

[0023] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects: 1. By fixing one end of the long-tube bag and rotating the other end, the middle part of the bag is twisted together to reduce the volume inside the bag. When air is blown into the bag, the impact force of the airflow causes the bag to reverse and return to the long tube shape. When the amount of gas and the temperature of the gas are constant, the volume inside the bag is reduced, the gas pressure is relatively increased, and the impact force of the airflow on the inside of the bag is increased, which can improve the efficiency of shaking off dust on the bag.

[0024] 2. By making rational use of airflow, the rotating parts can be rotated under the principle of airflow pressure, reducing the use of drive motors and saving production costs.

[0025] 3. By controlling a single pipeline individually through a single valve, the number of bag filters can be changed according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of a lithium carbonate production dust treatment device for this application; Figure 2 This is a schematic diagram of the internal structure of the filter tower for this application; Figure 3 A schematic diagram of the structure of the fixed framework for this application; Figure 4 This is a schematic diagram of the internal structure of the fixed framework for this application; Figure 5 This is a schematic diagram of the structure of the backflush mechanism of this application; Figure 6 This is a schematic diagram of the structure of the filter bag for this application; Figure 7 An exploded view of the gas storage box, the first rotating plate, the rotating rod and the auxiliary ring of the present application; Figure 8 Schematic diagram of the first rotating plate, rotating rod, second rotating plate and steel frame structure of this application Figure 1 ; Fig. 9 Schematic diagram of the first rotating plate, rotating rod, second rotating plate and steel frame structure of this application Figure 2 ; Fig.10 Internal cross-section of the gas tank for this application Figure 1 ; Fig.11 Internal cross-section of the gas tank for this application Figure 2 ; Fig.12 This is a schematic diagram of the structure of the gas storage block of this application.

[0027] Explanation of the accompanying drawings: 1. Filter tower; 2. Placement box; 3. Fixed frame; 4. Back-blowing mechanism; 41. Back-blowing high-pressure air bag; 42. Blowing pipe; 43. Blowing port; 44. Transition pipe; 45. Air storage box; 46. Switch valve; 47. Perforation; 5. Rotating assembly; 51. First rotating plate; 52. Rotating rod; 53. Second rotating plate; 54. Auxiliary ring; 55. Steel skeleton; 56. Filter bag; 57. Air storage block; 571. Shock-absorbing spring; 58. Air outlet; 59. Air inlet. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the embodiments of the present application. Figure 1-Figure 12 , the technical scheme of the embodiment of the present application is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0029] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 8 This embodiment provides a lithium carbonate production dust treatment device, including a filter tower 1, a fixed frame 3, a backflush mechanism 4 and a rotating assembly 5. The filter tower 1 is provided with a placement box 2 and a filter fan, and the filter fan absorbs and filters the material in the placement box 2. When the material passes through the filter bag, dust will adhere to the filter bag. The filter tower 1 is provided with a fixed frame 3, and the fixed frame 3 is composed of six plates and is arranged in a rectangular frame structure. The backflush mechanism 4 and the rotating assembly 5 are installed on the fixed frame 3, and the backflush mechanism 4 provides driving force for the rotating assembly 5.

[0030] Reference Figure 4 , Figure 5 and Figure 7 The back-blowing mechanism 4 includes a back-blowing high-pressure air bag 41, a blowing pipe 42, a transition pipe 44, an air storage box 45 and a switch valve 46. The back-blowing high-pressure air bag 41 is fixedly mounted on the outer wall of the fixed frame 3. A plurality of blowing pipes 42 are mounted on the back-blowing high-pressure air bag 41. The blowing pipes 42 are located inside the fixed frame 3. A plurality of blowing ports 43 are provided on the blowing pipes 42. The blowing ports 43 are connected to transition pipes 44 through hoses. The transition pipes 44 are connected to an air storage box 45 located on the fixed frame 3. The blowing pipes 42 are mounted with switch valves 46 for controlling the air intake of the blowing pipes 42.

[0031] Reference Figure 7 , Figure 8 , Fig. 9 , Fig.10 and Fig.11 The rotating assembly 5 includes a first rotating plate 51, a rotating rod 52, and a second rotating plate 53. The first rotating plate 51 is arranged inside the air storage box 45, and the rotating rod 52 is fixedly installed on the first rotating plate 51 and extends downward through the air storage box 45 and the fixing frame. The connection between the first rotating plate 51, the air storage box 45, and the fixing frame is a rotating connection, and the other end of the rotating rod 52 is fixedly installed with the second rotating plate 53. The first rotating plate 51, the rotating rod 52, and the second rotating plate 53 are coaxially arranged.

[0032] When in use, the corresponding switch valve 46 is opened according to actual needs, and the high-pressure air bag 41 is blown back to fill the air into the blowing pipe 42. The air passes through the blowing pipe 42, the blowing port 43, the transition pipe 44 in sequence and finally reaches the inside of the air storage box 45. The impact force of the air flow drives the first rotating plate 51 to rotate. At the same time, the pressure inside the air storage box 45 increases, which can drive the first rotating plate 51 to move upward, and the rotating rod 52 and the second rotating plate 53 fixedly connected to the first rotating plate 51 in sequence rotate synchronously and move upward.

[0033] Reference Figure 6 , Figure 7 and Fig.10 The rotating assembly 5 further includes an auxiliary ring 54, a steel frame 55 and a filter bag 56. The auxiliary ring 54 is fixedly mounted on the outer side wall of the bottom plate of the fixed frame. The auxiliary ring 54 is coaxially arranged with the rotating rod 52. A steel frame 55 is connected between the auxiliary ring 54 and the second rotating plate 53. The steel frame 55 is composed of a plurality of steel bars and arranged in a circular array. The connection between the auxiliary ring 54, the second rotating plate 53 and the steel frame 55 is arranged as a ball joint. A long cylindrical filter bag 56 is arranged on the outer side of the steel frame 55.

[0034] When in use, when the first rotating plate 51, the rotating rod 52 and the second rotating plate 53 rotate under the action of airflow, the auxiliary ring 54 fixes one end of the steel frame 55, and the second rotating plate 53 drives the other end of the steel frame 55 to rotate, and the middle part of the steel frame 55 and the filter bag 56 are twisted together.

[0035] Reference Fig.12 The rotating assembly 5 further includes an air storage block 57, a shock absorbing spring 571, an air outlet 58 and an air inlet 59. The air storage block 57 is rotatably connected to the bottom of the first rotating plate 51. The interior of the air storage block 57 is set as a hollow structure. The bottom of the air storage box 45 is provided with a plurality of through holes 47, and the through holes 47 correspond to the air storage block 57 one by one. A shock absorbing spring 571 is arranged around the air storage block 57. One end of the shock absorbing spring 571 is connected to the support plate, and the other end is connected to the inner bottom of the air storage box 45. The air storage block 57 is provided with a plurality of air inlets 59 and an air outlet 58.

[0036] During use, when the first rotating plate 51 rotates and moves upward under the action of airflow and pressure, the air storage block 57 moves upward synchronously with the first rotating plate 51, and the air inlet 59 on the air storage block 57 enters the air storage box 45 through the perforation 47. At this time, the airflow inside the air storage box 45 enters the air storage block 57. When the air filling in the air storage box 45 stops, the airflow flows out from the air outlet 58, the pressure in the air storage box 45 decreases, and the first rotating plate 51 resumes to move downward. At the same time, the twisted state of the middle part of the steel frame 55 is restored by rotation, driving the filter bag 56 to rotate. When the filter bag 56 rotates, the airflow formed inside shakes off the dust on the filter bag 56.

[0037] The implementation principle of a lithium carbonate production dust treatment device in the present application embodiment is as follows: First, by backblowing the high-pressure air bag 41, the air flow is filled into the blowing pipe 42, the blowing port 43 and the transition pipe 44 in turn, and the air flow finally reaches the inside of the air storage box 45. The air flow drives the first rotating plate 51 inside the air storage box 45 to rotate. When the air flow fills the inside of the air storage box 45, the pressure in the air storage box 45 increases, driving the first rotating plate 51 to move upward. When the first rotating plate 51 rotates and moves upward, the air storage block 57, the rotating rod 52 and the second rotating plate 53 rotate and move upward synchronously. The second rotating plate 53 drives one end of the steel frame 55 and the filter bag 56 to rotate, and the other ends of the steel frame 55 and the filter bag 56 are fixed, and the middle part of the steel frame 55 and the filter bag 56 is twisted.

[0038] When the middle parts of the steel skeleton 55 and the filter bag 56 are twisted together, the back-blowing high-pressure air bag 41 stops supplying air, and the gas inside the air storage box 45 flows out from the air outlet 58. The pressure inside the air storage box 45 decreases, and the first rotating plate 51 gradually moves down to return to its original position. The steel skeleton 55 drives the filter bag 56 to rotate and return to its original position. When the filter bag 56 rotates, the airflow generated inside shakes off the dust on the filter bag 56.

[0039] The volume inside the filter bag 56 becomes smaller when it is twisted. When the same gas is present inside the filter bag 56 and the amount and temperature of the gas are constant, the volume inside the filter bag 56 shrinks and the pressure of the gas increases relatively. The impact force of the airflow on the inside of the filter bag 56 increases, which can improve the efficiency of shaking off dust at the folds of the filter bag 56.

[0040] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] The above is a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A lithium carbonate production dust treatment device, comprising a filter tower (1) and a storage box (2), characterized in that: The top of the filter tower (1) is provided with a fixed frame (3), a back-blowing mechanism (4) is installed on the fixed frame (3), a plurality of rotating components (5) are arranged on the back-blowing mechanism (4), the back-blowing mechanism (4) is used to drive the rotating components (5) to rotate, the rotating components (5) include a first rotating plate (51), a rotating rod (52) and a second rotating plate (53), the two ends of the rotating rod (52) are respectively connected to the first rotating plate (51) and the second rotating plate (53), and the first rotating plate (51), the rotating rod (52) and the second rotating plate (53) are coaxially arranged; An auxiliary circular ring (54) is fixedly mounted on the fixed frame (3), the auxiliary circular ring (54) being coaxially arranged with the rotating rod (52), a steel bar skeleton (55) being arranged between the auxiliary circular ring (54) and the second rotating plate (53), the steel bar skeleton (55) being composed of a plurality of steel bars arranged in a circular array, and a filter bag (56) being fixedly mounted on the steel bar skeleton (55).

2. A lithium carbonate production dust treatment device according to claim 1, characterized in that: The back-blowing mechanism (4) comprises a back-blowing high-pressure air bag (41) fixedly mounted on the fixed frame (3); the back-blowing high-pressure air bag (41) is connected to an air blowing pipe (42); and the air blowing pipe (42) is provided with a plurality of air blowing ports (43).

3. A lithium carbonate production dust treatment device according to claim 2, characterized in that: The air blowing ports (43) are connected to transition pipes (44) via hoses, and the transition pipes (44) are connected to an air storage box (45) mounted on a fixed frame (3). The air storage box (45) and the rotating rods (52) correspond one to one, and the first rotating plate (51) is arranged in the air storage box (45).

4. A lithium carbonate production dust treatment device according to claim 1, characterized in that: The rotating assembly (5) further comprises an air storage block (57) rotatably arranged on the first rotating plate (51); the air storage blocks (57) are provided in plurality and have a hollow structure inside; each of the air storage blocks (57) is provided with an air outlet (58) and a plurality of air inlets (59).

5. A lithium carbonate production dust treatment device according to claim 1, characterized in that: The auxiliary circular ring (54) is a second rotating plate (53).

6. A lithium carbonate production dust treatment device according to claim 2, characterized in that: The air blowing pipes (42) are arranged in a plurality and each of the air blowing pipes (42) is provided with a switch valve (46).

7. A lithium carbonate production dust treatment device according to claim 4, characterized in that: A shock absorbing spring (571) is disposed around the gas storage block (57).

8. A lithium carbonate production dust treatment device according to claim 3, characterized in that: The gas storage box (45) is provided with a plurality of through holes (47) corresponding one to one with the gas storage blocks (57).

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