Fluidized bed filtering dust removal device

Abstract

The utility model relates to a fluidized bed filtering dust removal device which comprises a dust removal box body, and a filtering unit is arranged in the dust removal box body; an air inlet pipe is mounted at the bottom of the left side of the dust removal box body, a collecting hopper is mounted at the bottom of the dust removal box body, and an exhaust pipe is mounted at the top of the dust removal box body; the filtering unit comprises a filtering box body, the filtering box body is located in the dust removal box body between the air inlet pipe and the air exhaust pipe, and the filtering box body is detachably installed in the dust removal box body in the front-back direction. The filter element assembly and the filter cloth assembly are sequentially arranged in the filter box body from top to bottom, the mode of combining the filter cloth and the filter element enables the filter effect to be good, the filter cloth is used for filtering firstly, then the filter element is used for filtering, and the replacement frequency of the filter element is reduced.

Description

Technical Field

[0001] This utility model relates to the field of fluidized bed technology, and in particular to a fluidized bed filtration and dust removal device. Background Technology

[0002] A fluidized bed, or simply fluidized bed, is a reactor that uses gas or liquid to pass through a layer of particulate solids, suspending the solid particles and allowing gas-solid or liquid-solid phase reactions to occur. The exhaust gas from a fluidized bed contains a large amount of dust, which must be filtered before being released.

[0003] Extensive searching revealed Chinese Patent Publication No. CN217410216U, which discloses a fluidized bed exhaust dust removal system. This system solves the technical problem of ineffective dust removal in traditional systems. It includes an exhaust duct, a cyclone separator, a bag filter, an induced draft fan, and an air compressor. The connection sequence along the air path is: fluidized bed exhaust port – exhaust duct – cyclone separator – bag filter. The bag filter is then connected to the induced draft fan and air compressor via pipes, with solenoid valves and pressure sensors connected in series on the pipes, both electrically connected to the control system. By installing solenoid valves in the induced draft fan pipes, combined with the pressure sensors, the valves can be automatically adjusted when pressure changes are detected. This prevents the induced draft fan from drawing away a portion of the air compressor's intake, achieving better dust removal performance and making it widely applicable in the chemical engineering field.

[0004] In summary, existing fluidized bed filtration systems directly treat the exhaust gas from the fluidized bed through bags or filter cartridges for dust removal. Bags offer only moderate dust removal efficiency, while filter cartridges provide better performance but require frequent and cumbersome replacement.

[0005] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create a fluidized bed filtration and dust removal device that would have greater industrial application value. Utility Model Content

[0006] To solve any of the above-mentioned technical problems, the purpose of this utility model is to provide a fluidized bed filtration and dust removal device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A fluidized bed filtration and dust removal device includes a dust removal box, several support legs installed at the bottom of the dust removal box, and a filter unit installed inside the dust removal box.

[0009] An air inlet pipe is installed at the bottom left side of the dust collector, a material collection hopper is installed at the bottom of the dust collector, and an exhaust pipe is installed at the top of the dust collector.

[0010] The filter unit includes a filter housing, which is located inside a dust collector between the air inlet pipe and the air outlet pipe. The filter housing is detachably installed inside the dust collector along the front-to-back direction.

[0011] Several filter cartridge assemblies and filter cloth assemblies are arranged sequentially from top to bottom inside the filter box;

[0012] The filter element assembly includes a filter element, and filter element clips are provided in the filter housings on both the left and right sides of the filter element. Both sides of the filter element are inserted into the filter element slots in the filter element clips along the front and back.

[0013] The filter cloth assembly, from top to bottom, includes a filter cloth cover plate, a filter cloth, and a filter cloth download plate. The filter cloth download plate is installed in the filter box near the bottom. The filter cloth is installed between the filter cloth cover plate and the filter cloth download plate. An upper cavity is opened in the middle of the filter cloth cover plate, and a lower cavity is opened in the middle of the filter cloth download plate.

[0014] As a further improvement of this utility model, a material collection box is provided directly below the material collection hopper.

[0015] As a further improvement of this utility model, the collection box is installed on the conveying track below.

[0016] As a further improvement of this utility model, at least one slider is provided on both the left and right sides of the filter box, and a groove is provided in the dust removal box outside the slider, with the slider inserted into the groove along the front-back direction.

[0017] As a further improvement of this utility model, handles are installed on the filter box near the top and bottom.

[0018] As a further improvement of this utility model, a fan is installed inside the dust collection box inside the exhaust duct.

[0019] As a further improvement of this utility model, the left and right sides of the filter element are inserted into the filter element slots in the filter element card block along the front and back, and then locked by the locking component.

[0020] As a further improvement of this utility model, pressing blocks protruding downwards are provided on both the left and right sides of the bottom of the filter cloth cover plate, and pressing grooves recessed downwards are provided on the filter cloth download plate directly below the pressing blocks, with the pressing blocks embedded in the pressing grooves below.

[0021] By means of the above solution, this utility model has at least the following advantages:

[0022] The filter box of this utility model is provided with a filter element assembly and a filter cloth assembly arranged from top to bottom. The combination of filter cloth and filter element makes the filtration effect better. Moreover, the filter is filtered first by the filter cloth and then by the filter element, which reduces the replacement frequency of the filter element.

[0023] The filter housing of this utility model is slidably installed inside the dust collector, and the filter element and filter cloth are easy to disassemble, making it convenient to clean the filter unit regularly.

[0024] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the following are the preferred embodiments of this utility model and are described in detail with reference to the accompanying drawings. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of a fluidized bed filtration and dust removal device according to this utility model;

[0027] Figure 2 yes Figure 1 Schematic diagram of the internal structure of the middle filter box;

[0028] Figure 3 yes Figure 2 Schematic diagram of the middle filter element assembly;

[0029] Figure 4 yes Figure 2 A schematic diagram of the structure of the filter cloth assembly.

[0030] The meanings of the labels in the figures are as follows.

[0031] 1. Dust collector housing; 2. Air inlet pipe; 3. Support legs; 4. Collection hopper; 5. Collection box; 6. Conveying track; 7. Filter housing; 8. Slide rail; 9. Handle; 10. Exhaust pipe; 11. Fan; 12. Filter element assembly; 13. Filter cloth assembly; 14. Filter element locking block; 15. Filter element; 16. Locking element; 17. Filter cloth top cover plate; 18. Filter cloth download plate; 19. Filter cloth; 20. Pressing block; 21. Pressing groove; 22. Upper cavity; 23. Lower cavity; 24. Detailed Implementation

[0032] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0033] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0034] Example

[0035] like Figures 1-4 As shown,

[0036] A fluidized bed filtration and dust removal device includes a dust removal box 1, with several support legs 3 installed at the bottom of the dust removal box 1, and a filter unit installed inside the dust removal box 1.

[0037] 1. An air inlet pipe 2 is installed at the bottom left side of the dust collector 1, a material collection hopper 4 is installed at the bottom of the dust collector 1, an exhaust pipe 1 is installed at the top of the dust collector 1, and a fan 12 is installed inside the dust collector 1 inside the exhaust pipe 11.

[0038] The material collection box 5 is located directly below the material collection hopper 4. Large particles of dust in the material collection hopper 4 can be collected in the material collection box 5 by connecting a flexible hose. The material collection box 5 is installed on the conveying track 6 below, which facilitates the transportation of the material collection box 5 on the predetermined track.

[0039] 2. The filter unit includes a filter box 7, which is located inside the dust collector box 1 between the air inlet pipe 2 and the air outlet pipe 11. The filter box 7 is detachably installed inside the dust collector box 1 along the front-to-back direction. Handles 10 are installed on the filter box 7 near the top and bottom.

[0040] At least one slider 9 is provided on both the left and right sides of the filter housing 7. A sliding groove 8 is provided inside the dust collector housing 1 outside the slider 9, and the slider 9 is inserted into the sliding groove 8 along the front-to-back direction. This allows the entire filter housing 7 to be installed relatively easily inside the dust collector housing 1.

[0041] 3. Several filter element assemblies 13 and filter cloth assemblies 14 are arranged sequentially from top to bottom inside the filter housing 7.

[0042] 1) The filter element assembly 13 includes a filter element 16. Filter element clips 15 are provided in the filter housings 7 on both the left and right sides of the filter element 16. The left and right sides of the filter element 16 are inserted into the filter element slots in the filter element clips 15 along the front and back.

[0043] The filter element 16 is inserted into the filter element slot in the filter element card block 15 along the front and back sides, and then locked by the locking element 17 (bolts, etc.).

[0044] 2) The filter cloth assembly 14, from top to bottom, includes a filter cloth cover plate 18, a filter cloth 20, and a filter cloth download plate 19. The filter cloth download plate 19 is installed inside the filter housing 7 near the bottom, and the filter cloth 20 is installed between the filter cloth cover plate 18 and the filter cloth download plate 19. An upper cavity 23 is formed in the middle of the filter cloth cover plate 18, and a lower cavity 24 is formed in the middle of the filter cloth download plate 19. These cavities facilitate the filtration process of the filter cloth 20.

[0045] The filter cloth cover plate 18 has downward-protruding pressing blocks 21 on both the left and right sides of its bottom. The filter cloth download plate 19, directly below the pressing blocks 21, has downward-recessed pressing grooves 22, into which the pressing blocks 21 are embedded. The filter cloth 20 is installed between the filter cloth cover plate 18 and the filter cloth download plate 19 by pressing.

[0046] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A fluidized bed filtration and dust removal device, comprising a dust removal box (1), wherein a plurality of support legs (3) are installed at the bottom of the dust removal box (1), and a filter unit is provided inside the dust removal box (1); Its features are: An air inlet pipe (2) is installed at the bottom left side of the dust collector (1), a material collection hopper (4) is installed at the bottom of the dust collector (1), and an exhaust pipe (11) is installed at the top of the dust collector (1). The filter unit includes a filter box (7), which is located inside a dust collector box (1) between an air inlet pipe (2) and an air outlet pipe (11). The filter box (7) is detachably installed inside the dust collector box (1) along the front-to-back direction. Several filter element assemblies (13) and filter cloth assemblies (14) are arranged sequentially from top to bottom inside the filter housing (7); The filter element assembly (13) includes a filter element (16). Filter element clips (15) are provided in the filter boxes (7) on both the left and right sides of the filter element (16). The left and right sides of the filter element (16) are inserted into the filter element slots in the filter element clips (15) along the front and back. The filter cloth assembly (14) includes, from top to bottom, a filter cloth top cover plate (18), a filter cloth (20), and a filter cloth download plate (19). The filter cloth download plate (19) is installed in the filter box (7) near the bottom. The filter cloth (20) is installed between the filter cloth top cover plate (18) and the filter cloth download plate (19). An upper cavity (23) is opened in the middle of the filter cloth top cover plate (18), and a lower cavity (24) is opened in the middle of the filter cloth download plate (19).

2. The fluidized bed filtration and dust removal device as described in claim 1, characterized in that, A collection box (5) is provided directly below the collection hopper (4).

3. The fluidized bed filtration and dust removal device as described in claim 2, characterized in that, The collection box (5) is installed on the conveying track (6) below.

4. The fluidized bed filtration and dust removal device as described in claim 1, characterized in that, At least one slider (9) is provided on both the left and right sides of the filter box (7). A groove (8) is provided in the dust removal box (1) outside the slider (9). The slider (9) is inserted into the groove (8) along the front-back direction.

5. The fluidized bed filtration and dust removal device as described in claim 1, characterized in that, Handles (10) are installed on the filter housing (7) near the top and bottom.

6. The fluidized bed filtration and dust removal device as described in claim 1, characterized in that, A fan (12) is installed inside the dust collection box (1) inside the exhaust pipe (11).

7. The fluidized bed filtration and dust removal device as described in claim 1, characterized in that, The filter element (16) is inserted into the filter element slot in the filter element card block (15) on both the left and right sides along the front and back, and then locked by the locking member (17).

8. The fluidized bed filtration and dust removal device as described in claim 1, characterized in that, On the left and right sides of the bottom of the filter cloth cover plate (18), there are pressing blocks (21) that protrude downwards. On the filter cloth download plate (19) directly below the pressing blocks (21), there are pressing grooves (22) that are recessed downwards. The pressing blocks (21) are embedded in the pressing grooves (22) below.

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