Novel centrifugal ash and dust removal unit

Abstract

The utility model discloses a novel centrifugal dust removal unit which comprises a gas-solid separation shell, a gas-solid separation chamber is arranged in the gas-solid separation shell, a lower shell is installed at the lower end of the gas-solid separation shell, a gas inlet and a dust discharge port are formed in the lower shell, a gas purification shell is arranged on one side of the gas-solid separation shell, and a gas outlet is formed in the other side of the gas purification shell. A gas purification chamber is arranged in the gas purification shell, a gas outlet is formed in the gas purification chamber, a tail supporting bearing and a head supporting bearing are installed on the side wall of the gas-solid separation chamber and the side wall of the gas purification chamber respectively, transmission negative pressure cylinders are arranged on the tail supporting bearing and the head supporting bearing, a motor base plate is installed on the gas-solid separation shell, and a motor is installed on the motor base plate. The utility model relates to the technical field of material recovery and gas-solid separation, the rotary filter disc rotates at a high speed to generate centrifugal force, and under the action of the centrifugal force, an attachment material layer gradually slides to the outer edge of the filter disc and finally is separated from the filter disc to complete the ash cleaning process.

Description

Technical Field

[0001] The utility model relates to the technical field of gas-solid separation of material recovery, in particular to a novel centrifugal dust cleaning and dust removal unit. Background Art

[0002] The dust removal unit used in the existing material recovery device has powder accumulated on the surface of the filter bag of the dust removal unit after the material enters the dust removal unit and is filtered. The dust is cleaned by pulse blowing or mechanical vibration. The structure is complex and the cost is high. In humid weather or when the moisture content of the material is high, the cleaning effects of vibration and pulse blowing are not good, which affects the dust collector's processing air volume and efficiency. Generally, the vibration or pulse blowing device of the bag dust collector is large and complex in structure, and the maintenance and operation costs are high. The disadvantage is that the filter bags in the dust removal unit are not cleaned properly, which increases the air flow resistance and reduces the processing air volume, making the dust removal unit less efficient. In addition, as the material accumulates in the dust collector, the stability of the unit operation will decrease, and the dust collector needs to be cleaned manually frequently, and the maintenance is more frequent, which increases the operating cost. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a novel centrifugal dust cleaning and dust removal unit, which solves the problem that the filter bags of the prior dust removal units rely on pulse blowing or mechanical vibration for high cost and poor effect.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a new type of centrifugal dust cleaning and dust removal unit, including a gas-solid separation shell, a gas-solid separation chamber is arranged in the gas-solid separation shell, a lower shell is installed at the lower end of the gas-solid separation shell, an air inlet and an ash discharge port are arranged on the lower shell, a clean air shell is arranged on one side of the gas-solid separation shell, a clean air chamber is arranged in the clean air shell, an air outlet is arranged on the clean air chamber, a tail support bearing and a head support bearing are respectively installed on the side walls of the gas-solid separation chamber and the clean air chamber, a transmission negative pressure cylinder is arranged on the tail support bearing and the head support bearing, a motor base plate is installed on the gas-solid separation shell, and a drive motor is installed on the motor base plate.

[0005] Preferably, the transmission negative pressure cylinder includes a main transmission shaft rotatably mounted on a tail support bearing and a head support bearing, a negative pressure chamber outer cylinder is mounted on the outside of the main transmission shaft, a filter disc hub is mounted on the negative pressure chamber outer cylinder, a filter disc hub is provided with a filter U-shaped clip, one end of the filter U-shaped clip is connected to a rotating filter disc and the other end is provided with a pair of filter pressure plates, a pair of the filter pressure plates are respectively provided with clamping screws, and a pair of the clamping screws are respectively fixed on the filter disc hub, a hole is provided on the negative pressure chamber outer cylinder, a cavity is provided in the rotating filter disc, the cavity is connected to the hole, and an air duct is provided in the filter disc hub and between the hole and the cavity.

[0006] Preferably, transmission keys are respectively provided on the rotating ends of the main transmission shaft and the driving motor, and the rotating ends of the main transmission shaft and the driving motor and the outside of a pair of transmission keys are respectively fixedly mounted with a main shaft transmission groove wheel and a motor transmission groove wheel, and a transmission V-belt is installed on the main shaft transmission groove wheel and the motor transmission groove wheel.

[0007] Preferably, a filter disc fixing disc is installed on the outer wall of the negative pressure chamber outer cylinder, and a filter disc fixing disc pressing screw is provided between the filter disc fixing disc and the negative pressure chamber outer cylinder.

[0008] Preferably, both ends of the negative pressure chamber outer tube are respectively provided with a negative pressure chamber sealing end cover and a negative pressure chamber outer tube sealing disk, and a skeleton-type seal is provided on the negative pressure chamber outer tube sealing disk.

[0009] Preferably, a connecting flange is provided between the gas-solid separation shell and the lower shell.

[0010] Beneficial Effects

[0011] The utility model provides a new centrifugal dust removal unit, which has the following beneficial effects:

[0012] Small size and light weight. No complicated high-pressure spray cleaning mechanism and mechanical vibration cleaning mechanism are required. Multiple rotating filter discs are assembled on the outer cylinder of the negative pressure chamber in turn according to the concave and convex surfaces of the sealing sub-ports. The number of them is assembled according to the processing air volume. The filter rotor (i.e. rotating filter disc) rotates at high speed to generate centrifugal force. Under the action of centrifugal force, the attached material layer will gradually slide to the outer edge of the filter disc and finally detach from the filter disc to complete the dust removal process. Since the rotation is driven by a speed-regulating motor, the rotation speed of the filter disc can be adjusted according to the thickness of the material layer to change the centrifugal force to achieve the ideal dust cleaning effect. After the filter disc is formed, it needs to be subjected to secondary surface treatment; by using the inertness of the resin and the smoothness of its surface, dust is not easy to penetrate and stay, and the outer layer of the filter plate will not be blocked. It has the advantages of anti-static, acid and alkali resistance, strong moisture resistance, wear resistance, long trouble-free operation time of the filter disc, and long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the main structure of the centrifugal dust cleaning and dust removal unit of the utility model.

[0014] Figure 2 It is a side structural schematic diagram of the centrifugal dust cleaning and dust removal unit of the utility model.

[0015] Figure 3 It is a schematic diagram of the partial structure of the transmission negative pressure cylinder of the centrifugal dust cleaning and dust removal unit of the utility model.

[0016] Figure 4 It is a schematic diagram of the partial structure of the rotating filter disc of the centrifugal dust cleaning and dust removal unit of the utility model.

[0017] Figure 5 It is an enlarged schematic diagram of the U-shaped clamp of the filter disc of the utility model.

[0018] In the figure: 1. air outlet; 2. air inlet; 3. lower shell; 4. connecting flange; 5. gas-solid separation shell 6. tail support bearing; 7. ash discharge port; 8. clean air chamber; 9. clean air shell; 10. transmission negative pressure cylinder; 11. skeleton seal; 12. rotating filter disc; 13. filter disc U-shaped clip; 14. filter disc hub; 15. filter disc pressure plate; 16. clamping screw 17. head support bearing; 18. negative pressure chamber outer cylinder; 19. main transmission shaft; 20. filter disc fixing plate; 21. negative pressure chamber outer cylinder sealing plate; 22. negative pressure chamber sealing end cover; 23. filter disc fixing plate clamping screw; 24. main shaft transmission groove wheel; 25. transmission key; 26. transmission V-belt; 27. motor transmission groove wheel; 28. drive motor; 29. ​​motor seat plate; 30. gas-solid separation chamber; 31. air duct; 32. hole. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-5 The utility model provides a technical solution: a new centrifugal dust removal unit, including a gas-solid separation shell 5, a gas-solid separation chamber 30 is arranged in the gas-solid separation shell 5, a lower shell 3 is installed at the lower end of the gas-solid separation shell 5, an air inlet 2 and an ash discharge port 7 are arranged on the lower shell 3, a clean air shell 9 is arranged on one side of the gas-solid separation shell 5, a clean air chamber 8 is arranged in the clean air shell 9, an air outlet 1 is arranged on the clean air chamber 8, a tail support bearing 6 and a head support bearing 17 are respectively installed on the side walls of the gas-solid separation chamber 30 and the clean air chamber 8, and the tail support bearing 6 and the head support bearing 1 7 is provided with a transmission negative pressure cylinder 10, and a motor base plate 29 is installed on the gas-solid separation shell 5, and a driving motor 28 is installed on the motor base plate 29; one end of the transmission negative pressure cylinder 10 is sealed by a negative pressure chamber sealing end cover 22, and the other end is open and communicated with the clean air chamber 8 in the clean air shell 9, and the air outlet 1 on the clean air chamber 8 needs to be connected to the inlet of an external fan (this is an existing mature technology, and the connection method is also a well-known technical common sense. Since it is not the focus of this design, it is not described in detail, but it needs to be used with an external fan to keep the clean air chamber 8 in a negative pressure state).

[0021] Furthermore, the transmission negative pressure cylinder 10 includes a main transmission shaft 19 rotatably mounted on the tail support bearing 6 and the head support bearing 17, a negative pressure chamber outer cylinder 18 is mounted on the outside of the main transmission shaft 19, a filter disc hub 14 is mounted on the negative pressure chamber outer cylinder 18, a filter disc U-shaped clip 13 is provided on the filter disc hub 14, one end of the filter disc U-shaped clip 13 is connected to a rotating filter disc 12 and the other end is provided with a pair of filter disc pressure discs 15, a pair of the filter disc pressure discs 15 are respectively provided with compression screws 16, a pair of The clamping screws 16 are respectively fixed on the filter disc hub 14, the negative pressure chamber outer cylinder 18 is provided with a hole 32, the rotating filter disc 12 is provided with a cavity, the cavity is connected with the hole 32, and the cavity is provided with an inlet, and an airway 31 is provided in the filter disc hub 14 and between the hole 32 and the cavity; the purpose of this design is to allow other gases in the gas-solid separation chamber 30 to enter the negative pressure chamber outer cylinder 18 along the inlet from the cavity and the hole 32, and finally enter the clean air chamber 8 from the negative pressure chamber outer cylinder 18 and be discharged from the air outlet 1.

[0022] Furthermore, transmission keys 25 are respectively provided on the rotating ends of the main transmission shaft 19 and the driving motor 28, and the rotating ends of the main transmission shaft 19 and the driving motor 28 and the outside of a pair of transmission keys 25 are respectively fixedly mounted with a main shaft transmission groove wheel 24 and a motor transmission groove wheel 27, and a transmission V-belt 26 is installed on the main shaft transmission groove wheel 24 and the motor transmission groove wheel 27; the driving motor 28 drives the motor transmission groove wheel 27 to rotate, and the motor transmission groove wheel 27 drives the main shaft transmission groove wheel 24 to rotate through the V-belt 26, thereby driving the main transmission shaft 19 to rotate.

[0023] Furthermore, a filter plate fixing plate 20 is installed on the outer wall of the negative pressure chamber outer cylinder 18 , and a filter plate fixing plate pressing screw 23 is provided between the filter plate fixing plate 20 and the negative pressure chamber outer cylinder 18 .

[0024] Furthermore, both ends of the negative pressure chamber outer tube 18 are respectively provided with a negative pressure chamber sealing end cover 22 and a negative pressure chamber outer tube sealing disk 21 , and a skeleton seal 11 is provided on the negative pressure chamber outer tube sealing disk 21 .

[0025] Furthermore, a connecting flange 4 is provided between the gas-solid separation shell 5 and the lower shell 3 .

[0026] By those skilled in the art, the components in this case are connected and assembled in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the field. The following mainly introduces the working principle and process.

[0027] Embodiment: When in use, start the drive motor 28, and the drive motor 28 drives the main transmission shaft 19 to rotate through the motor transmission groove wheel 27, the transmission V-belt 26 and the main shaft transmission groove wheel 24. The main transmission shaft 19 drives the outer cylinder 18 of the negative pressure chamber to rotate, and then drives the rotating filter disc 12 to rotate through the filter disc hub 14 and the filter disc U-shaped clip 13. A number of rotating filter discs 12 can be installed on one main transmission shaft 19, and the dust-containing airflow is filled into the gas-solid separation chamber 30 from the bottom air inlet 2. After passing through the rotating filter disc 12 (the high-speed rotation of the rotating filter disc 12 generates centrifugal force to throw out the dust layer on the surface of the rotating filter disc 12 to achieve the purpose of cleaning), the clean airflow enters the clean air chamber 8 and is discharged from the air outlet 1. Finally, the dust thrown out from the surface of the rotating filter disc 12 falls into the lower shell 3 and completes the purpose of dust recovery through the ash discharge port 7. One end of the negative pressure chamber outer cylinder 18 is connected to the clean air chamber 8, and the clean air chamber 8 and the air outlet 1 are connected to an externally connected fan. When the externally connected fan is started, a negative pressure state will be formed in the clean air chamber 8 and the air outlet 1, so that the negative pressure chamber outer cylinder 18 is in a negative pressure state. The holes 32 of the negative pressure chamber outer cylinder 18 form a negative pressure in the cavity of the rotating filter disc 12. Under the action of atmospheric pressure, the dust-containing gas in the gas-solid separation chamber 30 enters the cavity of the rotating filter disc 12 through the rotating filter disc 12, and the clean gas enters the clean air chamber 8 through the negative pressure chamber outer cylinder 18, and is discharged into the atmosphere through the air outlet 1 through the externally connected fan.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel centrifugal dust removal unit, comprising a gas-solid separation housing (5), wherein a gas-solid separation chamber (30) is provided in the gas-solid separation housing (5), characterized in that: A lower shell (3) is installed at the lower end of the gas-solid separation shell (5), and an air inlet (2) and an ash discharge port (7) are provided on the lower shell (3). A clean air shell (9) is provided on one side of the gas-solid separation shell (5), and a clean air chamber (8) is provided in the clean air shell (9). An air outlet (1) is provided on the clean air chamber (8). A tail support bearing (6) and a head support bearing (17) are respectively installed on the side walls of the gas-solid separation chamber (30) and the clean air chamber (8), and a transmission negative pressure cylinder (10) is provided on the tail support bearing (6) and the head support bearing (17). A motor base plate (29) is installed on the gas-solid separation shell (5), and a drive motor (28) is installed on the motor base plate (29).

2. A new centrifugal dust removal unit according to claim 1, characterized in that: The transmission negative pressure cylinder (10) comprises a main transmission shaft (19) rotatably mounted on a tail support bearing (6) and a head support bearing (17); a negative pressure chamber outer cylinder (18) is mounted on the outside of the main transmission shaft (19); a filter disc hub (14) is mounted on the negative pressure chamber outer cylinder (18); a filter disc U-shaped clip (13) is disposed on the filter disc hub (14); one end of the filter disc U-shaped clip (13) is connected to a rotating filter disc (12) and the other end is connected to a rotating filter disc (12). A pair of filter disc pressure plates (15) are provided at the end, and the pair of filter disc pressure plates (15) are respectively provided with clamping screws (16), and the pair of clamping screws (16) are respectively fixed on the filter disc hub (14), and a hole (32) is provided on the outer cylinder (18) of the negative pressure chamber, and a cavity is provided in the rotating filter disc (12), and the cavity is connected to the hole (32), and an airway (31) is provided in the filter disc hub (14) and between the hole (32) and the cavity.

3. A new centrifugal dust removal unit according to claim 2, characterized in that: The rotating ends of the main transmission shaft (19) and the driving motor (28) are respectively provided with transmission keys (25); the rotating ends of the main transmission shaft (19) and the driving motor (28) and the outer parts of a pair of transmission keys (25) are respectively fixedly sleeved with a main shaft transmission groove wheel (24) and a motor transmission groove wheel (27); and the main shaft transmission groove wheel (24) and the motor transmission groove wheel (27) are installed with a transmission V-belt (26).

4. A novel centrifugal dust removal unit according to claim 2, characterized in that: A filter disc fixing disc (20) is installed on the outer wall of the negative pressure chamber outer cylinder (18), and a filter disc fixing disc pressing screw (23) is provided between the filter disc fixing disc (20) and the negative pressure chamber outer cylinder (18).

5. A novel centrifugal dust removal unit according to claim 2, characterized in that: The two ends of the negative pressure chamber outer cylinder (18) are respectively provided with a negative pressure chamber sealing end cover (22) and a negative pressure chamber outer cylinder sealing disk (21), and the negative pressure chamber outer cylinder sealing disk (21) is provided with a skeleton seal (11).

6. A novel centrifugal dust removal unit according to claim 1, characterized in that: A connecting flange (4) is provided between the gas-solid separation shell (5) and the lower shell (3).

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