Fluidization disc device capable of stably injecting pulverized coal

Abstract

The utility model discloses a fluidization disc device capable of stably injecting pulverized coal, which is characterized in that a plurality of porous partition plates are arranged in a fluidization shell, the partition plates are non-uniformly distributed in height, the pore diameters of the partition plates are gradually reduced from low to high, and the pore diameters are arranged in a staggered manner, so that airflow can be prevented from directly impacting pore channels below through the staggered air supply holes, and the fluidization efficiency is improved. Therefore, the uniformity of airflow is enhanced, the phenomenon of airflow concentration is reduced, the airflow can be uniformly distributed due to the larger aperture at the bottom end, stable airflow distribution in the whole fluidized bed can be maintained due to the gradually reduced aperture, and the transmission path of the airflow between layers is optimized due to the high-low arrangement of the porous partition plates. By means of the design, gradual adjustment of the airflow can be achieved, the airflow is prevented from losing too fast, it is guaranteed that the fluidization effect in the whole bed layer is kept stable, meanwhile, linkage with a vibration device is achieved, and the operation efficiency and reliability of the fluidized bed are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fluidization equipment, in particular to a fluidization disk device for stable pulverized coal injection. Background Art

[0002] The fluidized bed suspends solid particles through air flow to ensure uniform mixing of the particles in the bed layer, and is suitable for uniform treatment in reaction, heating or cooling processes. Coal fluidization is usually used to improve combustion efficiency and processing performance. During the fluidization process, coal particles are driven by gas (such as air or oxygen) to suspend and mix uniformly in the fluidized bed. Fluidization enables coal particles to contact air more uniformly, promotes complete combustion, and reduces unburned residues. The fluidized bed helps to reduce coking during coal combustion, and reduces equipment wear and maintenance costs. However, the existing fluidized beds have the problem of uneven air flow distribution, resulting in uneven particle fluidization states, which affects the reaction or processing effects. In addition, blocked areas are formed in the fluidized bed by the air flow, leading to poor fluidization or stagnation. In some cases, solid particles agglomerate or accumulate, blocking the air supply ports, thereby reducing the operating efficiency of the fluidized bed. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a fluidization disk device for stable pulverized coal injection, so as to solve the problems of uneven air flow distribution in the existing fluidized beds, resulting in uneven particle fluidization states, which affects the reaction or processing effects. In addition, blocked areas are formed in the fluidized bed by the air flow, leading to poor fluidization or stagnation. In some cases, solid particles agglomerate or accumulate, blocking the air supply ports, thereby reducing the operating efficiency of the fluidized bed.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A fluidization disk device for stable pulverized coal injection, including a fluidization outer shell, a fluidization disk, a porous partition board, and vibration devices symmetrically installed on the left and right sides at the bottom end of the fluidization outer shell. The fluidization outer shell is a shell with an upward opening. An air inlet hole is opened at the bottom end of the fluidization disk, and a first air supply pipe is connected inside the air inlet hole. A convex platform is arranged on the inner wall of the fluidization outer shell, and a number of porous partition boards are placed on the convex platform. The top end of the fluidization outer shell is connected with the fluidization disk, and a cavity is formed between the fluidization outer shell and the fluidization disk. The fluidization disk is arranged in a concave shape, and a number of uniformly distributed fluidization holes are opened on the fluidization disk. A coal outlet is opened in the middle of the fluidization disk, and a coal outlet pipe is connected to the coal outlet. The other end of the coal outlet pipe penetrates through the bottom end of the fluidization outer shell and is connected to a storage bin, and a second air supply pipe is connected to the coal outlet pipe.

[0005] The vibration device includes a base, a support plate, a sliding seat, a sliding rod, a connecting seat, and a semi-circular plate. The base is connected to the ground. Symmetrically arranged support plates are provided at the top of the base. The bottom ends of the support plates are connected by a connecting plate. A chute is provided on the connecting plate, and a sliding seat is slidably fitted in the chute. A number of sliding holes are respectively provided on the two support plates. Sliding rods are respectively arranged in the sliding holes. The sliding rods penetrate through the sliding holes, one end is respectively connected to the sliding seat, and the other end is connected to a limiting plate. Springs are respectively arranged between the support plates and the sliding seat, sleeved on the sliding rods. One end of the spring abuts against the sliding seat, and the other end abuts against the support plate. The sliding seat is concave-shaped. A vibration seat is arranged in the sliding seat. Positioning holes are symmetrically provided on the left and right sides of the vibration seat. The positioning holes are sleeved on the connecting rods symmetrically arranged on the left and right sides inside the sliding seat, and the vibration seat is slidably fitted on the connecting rods. A return spring is arranged between the sliding seat and the vibration seat, sleeved on the connecting rod, one end abuts against the inner wall of the sliding seat, and the other end abuts against the vibration seat. A semi-circular plate is connected to the vibration seat.

[0006] Preferably, the porous partitions are arranged at different heights, and a number of air delivery holes are evenly provided on the porous partitions, and the air delivery holes between the porous partitions are arranged in a staggered manner.

[0007] Preferably, the air delivery holes of the porous partitions erected from the bottom to the top gradually decrease in size, so as to maintain a stable air flow.

[0008] Preferably, one-way valves are provided on the first air delivery pipe and the second air delivery pipe to control the opening and closing of the first air delivery pipe and the second air delivery pipe and prevent gas backflow.

[0009] Preferably, a vibration hole is provided on the vibration seat, a rotating shaft is arranged in the vibration hole, the rotating shaft penetrates through the vibration hole, the top end is connected to a semi-circular plate, and the other end is connected to the output shaft of the driving motor.

[0010] Preferably, the top end of the concave end of the sliding seat is connected to the fluidization housing.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] A plurality of porous partitions are arranged in the fluidization housing. These partitions are unevenly distributed in height. The pore diameters of the partitions gradually decrease from low to high, and the pore diameters are arranged in a staggered manner. Through the staggered air delivery holes, the air flow can be prevented from directly impacting the lower channels, thereby enhancing the uniformity of the air flow, reducing the phenomenon of air flow concentration. The larger pore diameters at the bottom can evenly distribute the air flow, and the gradually decreasing pore diameters contribute to maintaining a stable air flow distribution throughout the fluidized bed. The different heights of the porous partitions optimize the air flow transmission path between layers, ensuring that the air flow of each partition is evenly distributed throughout the fluidized bed. This design can achieve a gradual adjustment of the air flow, prevent the air flow from flowing away too quickly, and ensure that the fluidization effect in the entire bed layer remains stable.

[0013] In addition, a vibration device is provided at the bottom end of the fluidization housing. During the fluidization process, the centrifugal force generated by the rotation of the semi - disc drives the vibration seat to move up and down, and drives the sliding seat to slide. The top end of the sliding seat is connected to the fluidization housing, so that the fluidization housing shakes. The movement of the vibration seat and the sliding seat makes the solid particles more evenly distributed in the fluidized bed. The shaking of the fluidization housing helps to break the agglomeration between the particles, improve the fluidity of the particles, and promote a better mixing effect. At the same time, the shaking can reduce the coking and material accumulation of the particles in the bed layer. By maintaining the dynamic movement of the particles and reducing the accumulation of particles, the operating efficiency and reliability of the fluidized bed are improved. In addition, when the particles enter the air supply holes, the shaking can shake the particles out to prevent the air supply holes from being blocked. Brief Description of the Drawings

[0014] Figure 1 It is a schematic front - view structure diagram of the whole utility model.

[0015] Figure 2 It is a schematic structure diagram of the porous partition plate of the utility model.

[0016] Figure 3 It is a schematic structure diagram of the mutual cooperation of the first air supply pipe, the coal discharge pipe, the second air supply pipe and the fluidization housing of the utility model.

[0017] Figure 4 It is a schematic structure diagram of the staggered arrangement of the air supply holes of the porous partition plate of the utility model.

[0018] Figure 5 It is a schematic structure diagram of the vibration device of the utility model.

[0019] In the figure: 1. Fluidization housing; 2. Fluidization disc; 3. First air supply pipe; 4. Coal discharge pipe; 5. Second air supply pipe; 6. Porous partition plate; 7. Vibration device; 701. Base; 702. Support plate; 703. Sliding seat; 704. Slide bar; 705. Spring; 706. Vibration seat; 707. Semi - disc; 708. Return spring. Detailed Description of the Preferred Embodiments

[0020] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0022] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] Example 1: Please refer to Figures 1-4, an embodiment provided by the present utility model: a fluidizing disk device for stable pulverized coal injection, comprising a fluidizing outer shell 1, a fluidizing disk 2, the surface of the fluidizing disk 2 supporting the fluidizing material, and uniformly distributing air flow through fluidizing holes so that the material can be fluidized, a porous partition plate 6, and vibration devices 7 symmetrically installed on the left and right sides at the bottom end of the fluidizing outer shell 1. The fluidizing outer shell 1 is a shell with an upward opening. An air inlet hole is provided at the bottom end of the fluidizing disk 2, and a first air supply pipe 3 is connected inside the air inlet hole. A boss is provided on the inner wall of the fluidizing outer shell 1, and a plurality of porous partition plates 6 are placed on the boss. The top end of the fluidizing outer shell 1 is connected with the fluidizing disk 2, and a cavity is formed between the fluidizing outer shell 1 and the fluidizing disk 2. The air flow sent into the cavity through the first air supply pipe 3 passes through the porous partition plate 6 and then the air flow fluidizes the fluidizing disk 2 by blowing. The fluidizing disk 2 is arranged in a concave shape, and a plurality of uniformly distributed fluidizing holes are provided on the fluidizing disk 2. A coal outlet is provided in the middle of the fluidizing disk 2, and a coal outlet pipe 4 is connected to the coal outlet. The other end of the coal outlet pipe 4 penetrates through the bottom end of the fluidizing outer shell 1 and is connected to a storage bin. A second air supply pipe 5 is connected to the coal outlet pipe 4. The second air supply pipe 5 provides additional air flow to help keep the coal outlet pipe 4 smooth and reduce the accumulation of materials, thereby reducing the risk of blockage. The porous partition plates 6 are arranged at different heights, and a plurality of air supply holes are uniformly provided on the porous partition plates 6. The air supply holes between the porous partition plates 6 are arranged in a staggered manner. The air supply holes of the porous partition plates 6 erected from the bottom end to the top end gradually decrease, for maintaining a stable air flow. A plurality of porous partition plates 6 are arranged in the fluidizing outer shell 1. These partition plates are unevenly distributed in height. The aperture of the partition plates gradually decreases from low to high, and the apertures are arranged in a staggered manner. Through the staggered air supply holes arranged in this way, the air flow can be prevented from directly impacting the lower pore channels, thereby enhancing the uniformity of the air flow and reducing the phenomenon of air flow concentration. The larger aperture at the bottom end can evenly distribute the air flow, and the gradually decreasing aperture helps to maintain a stable air flow distribution throughout the fluidized bed. The arrangement of the porous partition plates 6 at different heights optimizes the transmission path of the air flow between layers, ensuring that the air flow of each partition plate is evenly distributed throughout the fluidized bed. This design can realize the gradual adjustment of the air flow, prevent the rapid loss of the air flow, and ensure that the fluidization effect in the entire bed layer remains stable.

[0025] One-way valves are provided on the first air supply pipe 3 and the second air supply pipe 5 to control the opening and closing of the first air supply pipe 3 and the second air supply pipe 5 and prevent gas from flowing back.

[0026] Embodiment 2: Please refer to Figure 1 , 5 , on the basis of Embodiment 1, the following structure is further provided:

[0027] The vibration device 7 includes a base 701, a support plate 702, a sliding seat 703, a sliding rod 704, a vibration seat 706, and a semi-circular disk 707. The base 701 is connected to the ground. The base 701 is fixed to the ground to provide stable support and foundation. The support plate 702 is symmetrically arranged on the top of the base 701, and the support plate 702 is connected to the base 701 through a connecting plate. The sliding hole on the support plate 702 is used to accommodate the slide rod 704. The bottom end of the support plate 702 is connected by a connecting plate. The connecting plate connects the support plate 702 and the base 701 to form a whole. At the same time, a slide groove is opened on it to allow the sliding seat 703 to slide along the slide groove. The connecting plate is provided with a slide groove, and the slide seat 703 is slidably matched in the slide groove. The sliding seat 703 carries and accommodates the vibration seat 706. Its concave design is connected to the fluidized shell 1 to ensure that the vibration is transmitted to the fluidized shell 1. A plurality of sliding holes are respectively opened on the two support plates 702, and the sliding holes are respectively provided with slide rods 704. The slide rods 704 slide in the sliding holes to further improve the sliding The stability of the seat 703 is linked with the slide groove. When the sliding seat 703 slides, the spring 705 is driven to slide. At the same time, the sliding seat 703 and the support plate 702 squeeze the spring 705. After being squeezed, the spring 705 slides the sliding seat 703 through elastic potential energy, and then squeezes the spring 705 at the other end. This reciprocating process makes the sliding seat 703 slide and drives the fluidized shell 1 to vibrate. The sliding rod 704 passes through the sliding hole, one end of which is respectively connected to the sliding seat 703, and the other end is connected to the limiting plate. A spring 705 is respectively arranged between the support plate 702 and the sliding seat 703, which is sleeved on the sliding rod 704. One end of the spring 705 is pressed against the sliding seat 703. The sliding seat 703 is concavely arranged, and a vibration seat 706 is arranged inside the sliding seat 703. The vibration seat 706 transmits vibration to the fluidizing shell 1 through the connected semi-circular disk 707 and the rotating shaft. Positioning holes are symmetrically provided on the left and right sides of the vibration seat 706. The positioning holes are sleeved on the connecting rods symmetrically arranged on the left and right sides of the sliding seat 703, and the vibration seat 706 is slidably matched with the connecting rod. A return spring 708 is arranged between the sliding seat 703 and the vibration seat 706, which is sleeved on the connecting rod, one end of which is in contact with the inner wall of the sliding seat 703, and the other end of which is in contact with the vibration seat 706. The semi-circular disk 707 is connected to the vibration seat 706. 7. A vibration hole is provided on the vibration seat 706, and a rotating shaft is provided in the vibration hole. The rotating shaft passes through the vibration hole, and a semi-circular disk 707 is connected to the top end, and the other end is connected to the output shaft of the driving motor. The concave end of the sliding seat 703 is connected to the fluidizing shell 1. When in use, the driving motor is first started, and then the driving motor drives the rotating shaft to rotate, and the rotating shaft drives the semi-circular disk 707 to rotate. At the same time, the centrifugal force of the semi-circular disk 707 drives the vibration seat 706 to slide up and down on the connecting rod, and at the same time, the reset spring 708 is squeezed. After being squeezed, the reset spring 708 generates elastic potential energy, and then the vibration seat 706 is reset. While the semi-circular disk 707 is rotating,The centrifugal force drives the sliding seat 703 to slide on the chute. At the same time, the sliding seat 703 drives the sliding rod 704 to slide, and the sliding rod 704 drives the spring 705 to slide. After the sliding, the sliding seat 703 and the support plate 702 squeeze the spring 705 at the same time. After the spring 705 is squeezed, through elastic potential energy, the sliding seat 703 slides, and then squeezes the spring 705 at the other end. This reciprocates, causing the fluidization housing 1 to vibrate. The vibration of the fluidization housing 1 helps to break the agglomeration between particles, improve the fluidization of particles, and promote a better mixing effect. At the same time, the vibration can reduce the coking and material accumulation of particles in the bed layer. By maintaining the dynamic movement of particles, the accumulation of particles is reduced, thereby improving the operating efficiency and reliability of the fluidized bed. In addition, when the particles enter the air supply holes, the vibration can shake out the particles and prevent the air supply holes from being blocked.

[0028] The above are only the embodiments of the present invention, and common knowledge such as the specific structures and characteristics known in the solutions is not described in detail here. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A fluidized disk device for stable pulverized coal injection, characterized in that: It includes a fluidization housing (1), a fluidization plate (2), a porous partition plate (6), and vibration devices (7) symmetrically installed on the left and right sides at the bottom end of the fluidization housing (1). The fluidization housing (1) is a housing with an upward opening. An air inlet hole is provided at the bottom end of the fluidization plate (2), and a first air delivery pipe (3) is connected inside the air inlet hole. A boss is provided on the inner wall of the fluidization housing (1), and a number of porous partition plates (6) are placed on the boss. The top end of the fluidization housing (1) is connected to the fluidization plate (2), and a cavity is formed between the fluidization housing (1) and the fluidization plate (2). The fluidization plate (2) is arranged in a concave shape, and a number of evenly distributed fluidization holes are provided on the fluidization plate (2). A coal outlet is provided in the middle of the fluidization plate (2), and a coal outlet pipe (4) is connected to the coal outlet. The other end of the coal outlet pipe (4) penetrates through the bottom end of the fluidization housing (1) and is connected to a storage bin. A second air delivery pipe (5) is connected to the coal outlet pipe (4). The vibration device (7) includes a base (701), a support plate (702), a sliding seat (703), a sliding rod (704), a vibration seat (706), and a semi-circular plate (707). The base (701) is connected to the ground, and support plates (702) are symmetrically arranged at the top end of the base (701). The bottom ends of the support plates (702) are connected by a connecting plate, and a sliding groove is provided on the connecting plate. A sliding seat (703) is slidably fitted in the sliding groove. A number of sliding holes are respectively provided on the two support plates (702), and sliding rods (704) are respectively arranged in the sliding holes. The sliding rods (704) penetrate through the sliding holes, one end is respectively connected to the sliding seat (703), and the other end is connected to a limiting plate. Springs (705) are respectively arranged between the support plates (702) and the sliding seat (703), sleeved on the sliding rods (704). One end of the spring (705) abuts against the sliding seat (703), and the other end abuts against the support plate (702). The sliding seat (703) is arranged in a concave shape, and a vibration seat (706) is arranged inside the sliding seat (703). Positioning holes are symmetrically provided on the left and right sides of the vibration seat (706), and the positioning holes are sleeved on the connecting rods symmetrically arranged on the left and right sides inside the sliding seat (703), and the vibration seat (706) is slidably fitted with the connecting rods. A return spring (708) is arranged between the sliding seat (703) and the vibration seat (706), sleeved on the connecting rods, one end abuts against the inner wall of the sliding seat (703), and the other end abuts against the vibration seat (706). A semi-circular plate (707) is connected to the vibration seat (706).

2. The fluidized disk device for stable pulverized coal injection according to claim 1, characterized in that: The porous partition plates (6) are arranged at different heights, and a number of air delivery holes are evenly provided on the porous partition plates (6), and the air delivery holes between the porous partition plates (6) are arranged in a staggered manner.

3. The fluidized disk device for stable pulverized coal injection according to claim 1, characterized in that: The air delivery holes of the porous partition plates (6) erected from the bottom end to the top end gradually decrease to maintain a stable air flow.

4. The fluidized disk device for stable pulverized coal injection according to claim 1, characterized in that: One-way valves are provided on the first air delivery pipe (3) and the second air delivery pipe (5) to control the opening and closing of the first air delivery pipe (3) and the second air delivery pipe (5) and prevent gas backflow.

5. The fluidization disc device for stable pulverized coal injection according to claim 1, characterized in that: The vibration seat (706) is provided with a vibration hole, a rotating shaft is arranged in the vibration hole, the rotating shaft penetrates through the vibration hole, the top end is connected with a semi-circular disk (707), and the other end is connected with the output shaft of the driving motor.

6. The fluidized disk device for stable pulverized coal injection according to claim 1, characterized in that: The top end of the concave end of the sliding seat (703) is connected with the fluidization outer shell (1).

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