Fluidized bed air pipe convenient to clean

Abstract

The utility model relates to the technical field of fluidized beds, in particular to a fluidized bed air pipe convenient to clean, which comprises a cleaning pipe, the upper portion of the cleaning pipe is connected with a flow equalizing pipe, the lower portion of the cleaning pipe is connected with air inlet and outlet assemblies, end plates are mounted at two ends of the cleaning pipe, and a plurality of air inlet and outlet assemblies are connected to the bottom of the cleaning pipe. Spiral blades are installed on the outer wall of the rotating shaft, and one end of the rotating shaft is driven by a motor to rotate. According to the fluidized bed air pipe convenient to clean, through unique design and structural optimization, the cleaning efficiency and convenience of the air pipe are remarkably improved. Firstly, the rotating shaft and the spiral blade are arranged and matched with motor driving, and effective cleaning of residues in the air pipe is achieved. Compared with traditional manual beating or high-pressure gas blowing, the mechanical cleaning mode is more efficient and thorough, and the air pipe cannot be damaged. Due to the design of the flow equalizing pipe, gas or particles are more uniformly distributed in the air pipe, and the reaction efficiency and uniformity of the fluidized bed are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fluidized beds, in particular to an air duct of a fluidized bed which is easy to clean. Background Art

[0002] In the fluidized bed reaction or drying process, the air duct is a key component used to evenly distribute and transport gas or particles. However, existing air duct designs often face problems with blockage and accumulation of residues. Over time, particulate matter and other impurities may accumulate inside the air duct, which not only affects the ventilation efficiency of the air duct, but also may cause uneven fluidized bed reaction, thereby affecting product quality. Traditional cleaning methods, such as manual knocking or high-pressure gas purging, are time-consuming and may damage the air duct, and the cleaning effect is often unsatisfactory. Therefore, it is particularly important to develop a fluidized bed air duct that is easy to clean, which can not only improve production efficiency, but also extend the service life of the air duct while ensuring the stable operation of the fluidized bed. Utility Model Content

[0003] The purpose of the utility model is to provide a fluidized bed air duct that is easy to clean, so as to solve the problem that the traditional cleaning methods proposed in the above background technology, such as manual knocking or high-pressure gas blowing, are time-consuming and may damage the air duct, and the cleaning effect is often unsatisfactory.

[0004] To achieve the above-mentioned purpose, the utility model provides a fluidized bed air duct that is easy to clean, including a cleaning pipe, the upper part of the cleaning pipe is connected to a flow equalizing pipe, the lower part of the cleaning pipe is connected to an air inlet and outlet assembly, end plates are installed at both ends of the cleaning pipe, a plurality of air inlet and outlet assemblies are connected to the bottom of the cleaning pipe, a rotating shaft is installed inside the cleaning pipe, spiral blades are installed on the outer wall of the rotating shaft, one end of the rotating shaft is driven to rotate by a motor, and a discharge pipe is connected to the bottom of one end of the cleaning pipe.

[0005] Preferably, the end plates are fixed to the openings at both ends of the cleaning tube by locking bolts.

[0006] Preferably, the flow equalizing pipe comprises an outer pipe and an inner pipe, and the top ends of the outer pipe and the inner pipe are connected to the fluidized bed.

[0007] Preferably, a plurality of upper openings are provided on the upper portion of the side wall of the cleaning tube, and the bottom ends of the outer tube and the inner tube are connected to the upper openings of the cleaning tube.

[0008] Preferably, a plurality of lower openings are provided at the lower portion of the outer wall of the cleaning tube.

[0009] Preferably, the air inlet and outlet assembly comprises a vertical pipe, the outer side of the vertical pipe is connected to an inclined pipe, and the top ends of the inclined pipe and the vertical pipe are connected to the lower opening.

[0010] Preferably, a valve is installed at the bottom end of the vertical pipe.

[0011] Preferably, a reinforcing rib plate is installed between the upper end of the tube and the outer wall of the cleaning tube.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The air duct of the fluidized bed that is easy to clean has significantly improved the cleaning efficiency and convenience of the air duct through unique design and structural optimization. First of all, by setting a rotating shaft and spiral blades, and cooperating with a motor drive, effective cleaning of the residue inside the air duct is achieved. This mechanical cleaning method is more efficient and thorough than traditional manual knocking or high-pressure gas blowing, and will not cause damage to the air duct. The design of the flow equalizer makes the gas or particles more evenly distributed inside the air duct, improving the efficiency and uniformity of the fluidized bed reaction. At the same time, the design of the air inlet and outlet components and the feed pipe also fully considers the convenience of cleaning, so that the residue can be discharged smoothly, further improving the cleaning efficiency. The utility model also enhances the stability and durability of the air duct and extends the service life of the air duct by reinforcing the structural design such as the rib plate. This not only reduces the maintenance cost, but also provides a strong guarantee for the long-term stable operation of the fluidized bed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a side structural schematic diagram of the utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the cleaning tube in the utility model;

[0017] Figure 4 It is a structural schematic diagram of the air inlet and outlet components in the utility model.

[0018] The meaning of each number in the figure is:

[0019] 1. Cleaning pipe; 11. Rotating shaft; 12. Spiral blade; 13. Motor; 14. Lower opening; 15. Upper opening; 16. Feeding pipe; 2. Flow equalizing pipe; 21. Outer pipe; 22. Inner pipe; 3. Inlet and outlet air components; 31. Oblique pipe; 32. Vertical pipe; 33. Valve; 34. Reinforcement rib plate; 4. End plate; 41. Locking bolt. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The utility model provides a fluidized bed air duct which is easy to clean. Figure 1-Figure 4 As shown, it includes a cleaning tube 1, the upper part of the cleaning tube 1 is connected to a flow equalizing tube 2, the lower part of the cleaning tube 1 is connected to an air inlet and outlet assembly 3, end plates 4 are installed at both ends of the cleaning tube 1, and a plurality of air inlet and outlet assemblies 3 are connected to the bottom of the cleaning tube 1. A rotating shaft 11 is installed inside the cleaning tube 1, and a spiral blade 12 is installed on the outer wall of the rotating shaft 11. One end of the rotating shaft 11 is driven to rotate by a motor 13, and a discharge pipe 16 is connected to the bottom of one end of the cleaning tube 1. The rotating shaft 11 is driven to rotate by the motor 13, thereby driving the spiral blade 12 to move, so that the accumulated and blocked materials inside are discharged in time.

[0022] In this embodiment, the end plates 4 are fixed to the openings at both ends of the cleaning tube 1 by means of locking bolts 41 .

[0023] Specifically, the flow-balancing pipe 2 includes an outer pipe 21 and an inner pipe 22. The top ends of the outer pipe 21 and the inner pipe 22 are connected to the fluidized bed to ensure that wind energy is evenly blown into the fluidized bed.

[0024] Furthermore, a plurality of upper openings 15 are provided on the upper side wall of the cleaning tube 1 , and the bottom ends of the outer tube 21 and the inner tube 22 are connected to the upper openings 15 of the cleaning tube 1 , so that the upper part of the cleaning tube 1 can realize the blowing operation of the fluidized bed.

[0025] Furthermore, a plurality of lower openings 14 are provided at the lower portion of the outer wall of the cleaning tube 1 .

[0026] Furthermore, the air inlet and outlet assembly 3 includes a vertical pipe 32, the outer side of the vertical pipe 32 is connected to an inclined pipe 31, and the top ends of the inclined pipe 31 and the vertical pipe 32 are connected to the lower opening 14 to facilitate smooth air inlet and outlet.

[0027] Furthermore, a valve 33 is installed at the bottom end of the vertical pipe 32 to facilitate opening and closing of the channel in the vertical pipe 33.

[0028] Furthermore, a reinforcing rib plate 34 is installed between the upper end of the vertical pipe 32 and the outer wall of the cleaning pipe 1 to improve the strength of the upper end of the vertical pipe 32 and avoid breakage.

[0029] When the fluidized bed air duct easy to clean of the utility model is used, first, the wind enters from the flow-equalizing pipe 2 (including the outer pipe 21 and the inner pipe 22). The top ends of the two pipes are connected to the fluidized bed to ensure that the wind can be evenly blown into the fluidized bed (step 1).

[0030] Then, the wind enters the cleaning pipe 1 through the flow equalizing pipe 2. The upper part of the side wall of the cleaning pipe 1 is provided with a plurality of upper openings 15, which are connected with the bottom ends of the outer pipe 21 and the inner pipe 22, so that the wind can smoothly enter the cleaning pipe 1 and flow upward (step 2).

[0031] Inside the cleaning tube 1, the rotating shaft 11 is driven to rotate by the motor 13. The spiral blades 12 installed on the rotating shaft 11 rotate accordingly, and their function is to prevent the accumulation and clogging of materials in the tube (step 3).

[0032] If there is residual material or blockage in the cleaning pipe 1, the spiral blade 12 will push these materials to one end of the cleaning pipe 1. As the spiral blade 12 continues to rotate, these materials are eventually pushed to the discharge pipe 16 connected to the bottom of one end of the cleaning pipe 1 and discharged therefrom (step 4).

[0033] In addition, the lower part of the cleaning pipe 1 is also connected with an inlet and outlet gas assembly 3, which includes a vertical pipe 32 and an inclined pipe 31. Gas can smoothly enter and exit through these pipes. A valve 33 is installed at the bottom end of the vertical pipe 32 to control the flow of gas (step 5).

[0034] In order to improve the stability and durability of the structure, a reinforcing rib plate 34 is installed between the upper end of the vertical pipe 32 and the outer wall of the cleaning pipe 1 (step 6).

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A fluidized bed air duct that is easy to clean, comprising a cleaning pipe (1), characterized in that: The upper part of the cleaning tube (1) is connected to a flow equalizing tube (2), the lower part of the cleaning tube (1) is connected to an air inlet and outlet assembly (3), end plates (4) are installed at both ends of the cleaning tube (1), the bottom of the cleaning tube (1) is connected to a plurality of air inlet and outlet assemblies (3), a rotating shaft (11) is installed inside the cleaning tube (1), a spiral blade (12) is installed on the outer wall of the rotating shaft (11), one end of the rotating shaft (11) is driven to rotate by a motor (13), and a discharge pipe (16) is connected to the bottom of one end of the cleaning tube (1).

2. The fluidized bed air duct that is easy to clean according to claim 1, characterized in that: The end plates (4) are fixed to the openings at both ends of the cleaning tube (1) by means of locking bolts (41).

3. The fluidized bed air duct that is easy to clean according to claim 1, characterized in that: The flow equalizing pipe (2) comprises an outer pipe (21) and an inner pipe (22), and the top ends of the outer pipe (21) and the inner pipe (22) are connected to the fluidized bed.

4. The fluidized bed air duct that is easy to clean according to claim 3 is characterized in that: A plurality of upper openings (15) are provided on the upper portion of the side wall of the cleaning tube (1), and the bottom ends of the outer tube (21) and the inner tube (22) are in communication with the upper openings (15) of the cleaning tube (1).

5. The fluidized bed air duct that is easy to clean according to claim 1, characterized in that: The lower part of the outer wall of the cleaning tube (1) is provided with a plurality of lower openings (14).

6. The easy-to-clean fluidized bed air duct according to claim 5, characterized in that: The air inlet and outlet assembly (3) comprises a vertical pipe (32), the outer side of the vertical pipe (32) is connected to an inclined pipe (31), and the top ends of the inclined pipe (31) and the vertical pipe (32) are in communication with the lower opening (14).

7. The easy-to-clean fluidized bed air duct according to claim 6, characterized in that: A valve (33) is installed at the bottom end of the vertical pipe (32).

8. The easy-to-clean fluidized bed air duct according to claim 6, characterized in that: A reinforcing rib plate (34) is installed between the upper end of the vertical pipe (32) and the outer wall of the cleaning pipe (1).

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