Baking soda drying fluidized bed filtration structure

Abstract

This utility model relates to the field of fluidized beds and discloses a sodium bicarbonate drying fluidized bed filtration structure, including a fluidized bed. A feed inlet is fixedly connected to the side wall of the fluidized bed, and a filter box is fixedly connected to the top of the feed inlet. A filtration mechanism is arranged above the feed inlet, and the filtration mechanism includes a filter bag. The filter bag is positioned above the filter box. Two movable plates are symmetrically and slidably connected to the top outer wall of the filter box, and the two movable plates are arranged crosswise. A fixed plate is fixedly connected to the outer wall of the filter box, and a motor is fixedly connected to the bottom outer wall of the fixed plate. In this utility model, by placing the filter bag above the filter box and symmetrically and slidably connecting the two crosswise movable plates to the top outer wall of the filter box, a periodic tapping action is formed on the filter bag, effectively preventing clogging during the filtration process, improving filtration efficiency and the continuity of equipment operation.

Description

Technical Field

[0001] This utility model relates to the field of fluidized beds, and in particular to a sodium bicarbonate drying fluidized bed filtration structure. Background Technology

[0002] The sodium bicarbonate drying fluidized bed filter structure is mainly used in the pretreatment process before drying sodium bicarbonate materials. The filter structure performs preliminary filtration of the material to remove impurities and prevent impurities from entering the fluidized bed, which would affect the drying effect and the stability of equipment operation.

[0003] In existing technologies, simple filter screens or filter bags are typically used to filter baking soda materials. The filter screen or filter bag is fixedly installed above the feed inlet, and the material falls naturally under gravity. When it passes through the filter screen or filter bag, impurities are trapped, and the filtered material enters a fluidized bed for drying.

[0004] However, because baking soda particles are small (particle size ≤ 0.15 mm) and easily absorb moisture and clump, the material accumulates on the filter screen surface and forms a hardened layer, which causes the filtration efficiency to drop significantly within 2 hours of continuous operation. Therefore, a baking soda drying fluidized bed filtration structure is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a sodium bicarbonate drying fluidized bed filter structure, which aims to solve the problem of rapid decline in filtration efficiency in the prior art, which seriously affects the normal feeding of materials.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a sodium bicarbonate drying fluidized bed filtration structure, comprising a fluidized bed, a feed inlet fixedly connected to the side wall of the fluidized bed, a filter box fixedly connected to the top of the feed inlet, a filtration mechanism provided above the feed inlet, the filtration mechanism comprising a filter bag, the filter bag being disposed above the filter box, and two movable plates symmetrically and slidably connected to the top outer wall of the filter box, the two movable plates being arranged crosswise.

[0007] As a further description of the above technical solution: a fixed plate is fixedly connected to the outer wall of the filter box, a motor is fixedly connected to the bottom outer wall of the fixed plate, a rotating shaft is fixedly connected to the output end of the motor through a coupling, the outer wall of the rotating shaft is rotatably connected to the inner wall of the fixed plate, a rotating wheel is fixedly connected to the outer wall of the rotating shaft, and the outer wall of the rotating wheel is in contact with the outer walls of the two movable plates.

[0008] As a further description of the above technical solution: both of the movable plates are rotatably connected to a connecting shaft, and the bottom end of the connecting shaft is fixedly connected to the top outer wall of the fixed plate.

[0009] As a further description of the above technical solution: the rotating wheel is elliptical in shape.

[0010] As a further description of the above technical solution: a cooperating mechanism is provided above the feed inlet, the cooperating mechanism including a turntable, the bottom of the turntable being fixedly connected to the top of the rotating shaft.

[0011] As a further description of the above technical solution: the top of the filter box is provided with an elastic component, and the top of the elastic component is provided with a fixing ring.

[0012] As a further description of the above technical solution: the elastic component includes a compression spring and a damper, the bottom ends of the compression spring and the damper are fixedly connected to the top of the filter box, and the top ends of the compression spring and the damper are fixedly connected to a fixing ring.

[0013] As a further description of the above technical solution: the bottom of the turntable is fixedly connected with five protrusions arranged in a circular array.

[0014] This utility model has the following beneficial effects: 1. In this utility model, by placing the filter bag above the filter box and symmetrically sliding two cross-shaped movable plates on the outer wall of the top of the filter box, a periodic beating effect is formed on the filter bag, which effectively prevents the filter bag from clogging during the filtration process, and improves the filtration efficiency and the continuity of equipment operation.

[0015] 2. In this utility model, the rotating shaft is driven by a motor to rotate, which drives the elliptical rotating wheel to push the movable plate to perform cross-cutting motion. At the same time, the turntable at the top of the rotating shaft drives the protrusion to periodically squeeze the fixing ring. With the help of the elastic component, the filter bag shakes up and down, which further enhances the self-cleaning ability of the filter bag. Attached Figure Description

[0016] Figure 1 This is a front view of the sodium bicarbonate drying fluidized bed filter structure proposed in this utility model; Figure 2 This is a schematic diagram of the sodium bicarbonate drying fluidized bed filter structure proposed in this utility model; Figure 3 The sodium bicarbonate drying fluidized bed filter structure proposed in this utility model Figure 2 Enlarged view of point A in the middle; Figure 4 This is a cross-sectional view of the filter box of the sodium bicarbonate drying fluidized bed filter structure proposed in this utility model.

[0017] Legend: 1. Fluidized bed; 2. Feed inlet; 3. Filter box; 4. Filtering mechanism; 401. Fixed plate; 402. Motor; 403. Rotating shaft; 404. Rotating wheel; 405. Connecting shaft; 406. Movable plate; 407. Filter bag; 5. Coupling mechanism; 501. Turntable; 502. Protrusion; 503. Elastic component; 504. Fixing ring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a sodium bicarbonate drying fluidized bed filtration structure, including a fluidized bed 1, an inlet 2 fixedly connected to the side wall of the fluidized bed 1, and a filter box 3 fixedly connected to the top of the inlet 2. The filter box 3 can perform pre-filtration. A filtration mechanism 4 is provided above the inlet 2. The filtration mechanism 4 includes a filter bag 407, which facilitates filtration. The filter bag 407 is located above the filter box 3. Two movable plates 406 are symmetrically slidably connected to the top outer wall of the filter box 3. The two movable plates 406 are arranged crosswise. The cross-cutting movement of the two movable plates 406 can knock the filter bag 407, achieving the effect of shaking and preventing clogging.

[0020] Reference Figure 2 - Figure 4 A fixing plate 401 is fixedly connected to the outer wall of the filter box 3. A motor 402 is fixedly connected to the bottom outer wall of the fixing plate 401. The fixing plate 401 provides a limiting effect for the installation of the motor 402. The output end of the motor 402 is fixedly connected to a rotating shaft 403 via a coupling. The operation of the motor 402 drives the rotating shaft 403 to rotate. The outer wall of the rotating shaft 403 is rotatably connected to the inner wall of the fixing plate 401, providing a limiting effect for the rotating shaft 403. A rotating wheel 404 is fixedly connected to the outer wall of the rotating shaft 403. The rotation of 403 drives the rotating wheel 404 to rotate. The outer wall of the rotating wheel 404 contacts the outer walls of the two movable plates 406. The rotation of the rotating wheel 404 can drive the two movable plates 406 to perform cross-cutting movements. Both movable plates 406 are rotatably connected to the connecting shaft 405. The bottom end of the connecting shaft 405 is fixedly connected to the top outer wall of the fixed plate 401. The rotating wheel 404 is elliptical in shape. The outer wall of the connecting shaft 405 is fitted with a spiral spring to facilitate the reset of the two movable plates 406.

[0021] Reference Figure 2 - Figure 4 A cooperating mechanism 5 is provided above the feed inlet 2. The cooperating mechanism 5 includes a turntable 501. The bottom of the turntable 501 is fixedly connected to the top of the rotating shaft 403. The rotation of the rotating shaft 403 drives the turntable 501 to rotate. An elastic component 503 is provided on the top of the filter box 3. A fixing ring 504 is provided on the top of the elastic component 503. The elastic component 503 includes a compression spring and a damper. The bottom ends of the compression spring and the damper are both fixedly connected to the top of the filter box 3. The top ends of the compression spring and the damper are both fixedly connected to the fixing ring 504 by bolts, which also facilitates the disassembly of the fixing ring 504. The fixing ring 504 is detachably connected to the filter bag 407, which facilitates the adjustment of the filter bag 407. To prevent wear and tear from prolonged use, the bottom of the turntable 501 is fixedly connected with five protrusions 502 arranged in a circumferential array. As the turntable 501 rotates, the protrusions 502 compress the fixing ring 504, causing it to move downwards. This compresses the compression spring and damper, which in turn moves the filter bag 407 downwards. When the protrusions 502 stop compressing the fixing ring 504, the energy stored in the compression spring is released, causing the fixing ring 504 and the filter bag 407 to move upwards. The damper prevents the compression spring from undergoing simple harmonic motion. In this up-and-down reciprocating motion, the filter bag 407 is shaken up and down, thereby improving the filtration and anti-clogging effect.

[0022] Working principle: Before the baking soda material enters the fluidized bed 1 through the feed inlet 2, it is first pre-treated by the filter mechanism 4 above the filter box 3. At this time, the motor 402 is started by controlling the operation of the motor 402. The operation of the motor 402 drives the rotating shaft 403 to rotate. The rotation of the rotating shaft 403 drives the elliptical rotating wheel 404 to rotate. Since the rotating wheel 404 is in contact with two cross-set movable plates 406, the rotation of the rotating wheel 404 will push the movable plates 406 to perform cross-shearing motion around the connecting shaft 405, thereby periodically tapping the filter bag 407 to prevent the filter bag 407 from clogging.

[0023] At the same time, the turntable 501 at the top of the rotating shaft 403 rotates synchronously, and the protrusion 502 at the bottom of the turntable 501 intermittently squeezes the fixing ring 504 during the rotation, which, together with the elastic component 503, makes the filter bag 407 shake up and down. The up and down shaking and the slapping of the movable plate 406 form a linkage and synergistic effect, which effectively improves the filtration efficiency and prevents material accumulation.

[0024] It is worth noting that in this embodiment, the electrical equipment is a common device in the prior art, and the model used can be customized according to actual usage requirements. The power supply interface of the electrical equipment in this utility model is connected to the power supply system through a switch (not shown in the figure) and a wire (not shown in the figure) to realize its control. The circuits and controls involved are all prior art and are known in the current field, so they will not be described in detail here.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sodium bicarbonate drying fluidized bed filtration structure, comprising a fluidized bed (1), characterized in that: The fluidized bed (1) is fixedly connected to a feed inlet (2), and a filter box (3) is fixedly connected to the top of the feed inlet (2). A filter mechanism (4) is provided above the feed inlet (2). The filtration mechanism (4) includes a filter bag (407), which is disposed above the filter box (3). Two movable plates (406) are symmetrically slidably connected to the top outer wall of the filter box (3), and the two movable plates (406) are arranged crosswise.

2. The sodium bicarbonate drying fluidized bed filter structure according to claim 1, characterized in that: A fixing plate (401) is fixedly connected to the outer wall of the filter box (3). A motor (402) is fixedly connected to the bottom outer wall of the fixing plate (401). A rotating shaft (403) is fixedly connected to the output end of the motor (402) through a coupling. The outer wall of the rotating shaft (403) is rotatably connected to the inner wall of the fixing plate (401). A rotating wheel (404) is fixedly connected to the outer wall of the rotating shaft (403). The outer wall of the rotating wheel (404) is in contact with the outer walls of the two movable plates (406).

3. The sodium bicarbonate drying fluidized bed filtration structure according to claim 2, characterized in that: Both of the movable plates (406) are rotatably connected to a connecting shaft (405), the bottom end of which is fixedly connected to the top outer wall of the fixed plate (401).

4. The sodium bicarbonate drying fluidized bed filtration structure according to claim 2, characterized in that: The rotating wheel (404) is elliptical in shape.

5. The sodium bicarbonate drying fluidized bed filter structure according to claim 1, characterized in that: A cooperating mechanism (5) is provided above the feed inlet (2). The cooperating mechanism (5) includes a turntable (501), the bottom of which is fixedly connected to the top of the rotating shaft (403).

6. The sodium bicarbonate drying fluidized bed filter structure according to claim 5, characterized in that: The top of the filter box (3) is provided with an elastic component (503), and the top of the elastic component (503) is provided with a fixing ring (504).

7. The sodium bicarbonate drying fluidized bed filter structure according to claim 6, characterized in that: The elastic component (503) includes a compression spring and a damper. The bottom ends of the compression spring and the damper are fixedly connected to the top of the filter box (3), and the top ends of the compression spring and the damper are fixedly connected to the fixing ring (504).

8. The sodium bicarbonate drying fluidized bed filter structure according to claim 5, characterized in that: The bottom of the turntable (501) is fixedly connected with five protrusions (502), which are arranged in a circular array.

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