Multistage powder classifier

Abstract

The utility model provides multi -stage powder concentrator relates to multi -stage powder concentrator technical field, the utility model discloses a shell, the upper top fixedly connected with feed inlet of shell, the upper top fixedly connected with motor of shell, the inner wall rotationally connected with pivot of shell, and the pivot is driven by motor, and the surface fixedly connected with scattering tray of pivot, one end fixedly connected with vane of pivot, the surface fixedly connected with buffer plate of pivot, the surface fixedly connected with cyclone separator of shell, the bottom fixedly connected with discharge hopper of cyclone separator, the bottom fixedly connected with discharge port of shell, the surface of discharge port is provided with fixed device, and the fixed device includes the ring groove of setting in the surface of discharge port, the inside of ring groove is provided with rubber band, the surface fixedly connected with baffle of discharge port, the utility model solves the problem that the collection bag is inconveniently fixed on the surface of the discharge port of the sorting machine.

Description

Technical Field

[0001] This utility model relates to the field of multi-stage air classifier technology, and in particular to multi-stage air classifiers. Background Technology

[0002] The high-efficiency air classifier is a new type of industrial grading equipment that employs multi-stage separation chambers and airflow circulation technology. It achieves fine material classification through the combined effects of horizontal vortex, centrifugal force field, and cyclone vortex. Its main structure includes an upper separation chamber, a middle multi-stage separation cone, and a lower circulating separation chamber. After multi-stage separation, fine powder is collected, while coarse powder is further processed through a circulation channel. Core technological innovations include a patented vortex rectifier design, a variable frequency speed-regulating main shaft, and steplessly adjustable guide vanes, which can increase the separation efficiency to over 80%. The equipment uses single-drive multi-stage separation technology, controlling particle size classification accuracy through independent air inlets. In industries such as cement, manufactured sand, and dry mortar, it increases grinding system output by 30%-50% while reducing power consumption by 5%-20%.

[0003] The inventors discovered during routine use of the powder classifier that, in general, the powder classifier does not have a fixed component on its surface. This makes it difficult to collect the screened powder into the collection bag, which may cause the powder to drift away and prevent it from being collected effectively, thus causing problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-stage air classifier.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a multi-stage air classifier, comprising a housing, a feed inlet fixedly connected to the top of the housing, a Y80-315 motor fixedly connected to the top of the housing, a rotating shaft rotatably connected to the inner wall of the housing, the rotating shaft being driven by the Y80-315 motor, a spreading disc fixedly connected to the surface of the rotating shaft, a blade fixedly connected to one end of the rotating shaft, a buffer plate fixedly connected to the surface of the rotating shaft, a cyclone separator fixedly connected to the surface of the housing, a discharge hopper fixedly connected to the bottom of the cyclone separator, a discharge port fixedly connected to the bottom of the housing, a fixing device provided on the surface of the discharge port, the fixing device including an annular groove formed on the surface of the discharge port, a rubber band provided inside the annular groove, and a baffle fixedly connected to the surface of the discharge port.

[0006] The above components achieve the following effects: the rubber band allows the collection bag to be fixed to the surface of the discharge port, thus securing the collection bag; the baffle prevents the collection bag from slipping off the surface of the discharge port, thus securing the collection bag.

[0007] Preferably, an L-shaped plate is fixedly connected to the surface of the discharge port, a threaded rod is threadedly connected to the surface of the L-shaped plate, an arc-shaped plate is rotatably connected to one end of the threaded rod, and a round strip, which is a rubber strip, is fixedly connected to the surface of the arc-shaped plate.

[0008] The effect achieved by the above components is as follows: under the action of the threaded rod, the arc plate can be pressed against the surface of the discharge port, thereby fixing the collection bag. Under the action of the round strip, the collection bag will not slip off the surface of the discharge port, thus avoiding slippage.

[0009] Preferably, a slide rod is slidably connected to the surface of the L-shaped plate, and an arc-shaped plate is fixedly connected to one end of the slide rod.

[0010] The effect achieved by the above components is that, under the action of the slide bar, the arc-shaped plate will not rotate with the rotation of the threaded rod.

[0011] Preferably, the side of the L-shaped plate is threaded with a screw, one end of which abuts against the surface of the threaded rod.

[0012] The aforementioned components achieve the following effects: The screws allow the threaded rod to be fixed, thus achieving a secure hold. When the collection bag needs to be secured, the rubber band is removed from the annular groove, the collection bag is placed over the surface of the outlet, and the rubber band is inserted into the annular groove. The baffle prevents the collection bag from slipping off the outlet surface. When the collection bag is over the outlet surface, the threaded rod is manually turned, causing the arc-shaped plate to move towards the outlet surface. The sliding rod prevents the arc-shaped plate from rotating with the threaded rod. After the collection bag is pressed against the outlet surface by the arc-shaped plate, the round bar prevents it from slipping off the outlet surface, thus avoiding slippage. After the arc-shaped plate is pressed against the outlet surface, the screw is screwed into the L-shaped plate, with one end of the screw resting against the surface of the threaded rod, thus securing the collection bag.

[0013] Preferably, the discharge hopper is provided with a screening device inside, the screening device including a groove formed inside the discharge hopper, and a filter plate is slidably connected inside the groove.

[0014] The effect achieved by the above components is that, under the action of the filter plate, the powder inside the discharge hopper can be screened again, thereby further screening the fine powder and achieving the screening function.

[0015] Preferably, a magnetic block is fixedly connected to the inner wall of the groove, and the magnetic block is magnetically connected to the side of the filter plate.

[0016] The effect achieved by the above components is that, under the action of the magnetic block, the filter plate can be fixed inside the groove, thereby achieving the function of fixing the filter plate.

[0017] Preferably, a clamping rod is inserted into the surface of the discharge hopper, and one end of the clamping rod is inserted into the interior of the circular groove.

[0018] The effect achieved by the above components is that, under the action of the clamping rod, the filter plate can be fixed inside the groove, thereby achieving the function of fixation.

[0019] Preferably, a spring is sleeved on the surface of the clamping rod, and the two ends of the spring are fixedly connected to one end of the clamping rod on the surface of the discharge hopper.

[0020] The aforementioned components achieve the following effects: Under the action of the spring, the clamping rod will not slip out of the inside of the circular groove. When it is necessary to screen the fine powder again, the filter plate is inserted into the groove. Under the action of the magnetic block, the filter plate can be fixed inside the groove, thereby achieving the function of fixing the filter plate. The clamping rod is inserted into the circular groove. Under the action of the spring, the clamping rod will not slip out of the groove, thereby achieving the function of fixing the filter plate and thus achieving the function of screening fine powder.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0022] In this invention, by setting a fixing device, when it is necessary to fix the collection bag, the rubber band is taken out from the inside of the annular groove, the collection bag is placed on the surface of the discharge port, and the rubber band is inserted into the inside of the annular groove. Under the action of the baffle, the collection bag will not slip off the surface of the discharge port. When the collection bag is placed on the surface of the discharge port, the threaded rod is turned by hand, causing the arc plate to move towards the surface of the discharge port. Under the action of the sliding rod, the arc plate will not rotate with the rotation of the threaded rod. After the collection bag is pressed against the surface of the discharge port by the arc plate, the round bar will prevent the collection bag from slipping off the surface of the discharge port, thus avoiding slippage. After the arc plate is pressed against the surface of the discharge port, the screw is screwed into the inside of the L-shaped plate, and one end of the screw is pressed against the surface of the threaded rod, thus achieving the function of fixing the collection bag, thereby solving the problem that the collection bag is inconvenient to fix on the surface of the discharge port of the sorting machine. Attached Figure Description

[0023] Figure 1 A three-dimensional structural diagram of a multi-stage air classifier is provided for this utility model;

[0024] Figure 2 A schematic diagram of the fixing device for the multi-stage air classifier proposed in this utility model;

[0025] Figure 3A schematic diagram of the screening device for the multi-stage air classifier proposed in this utility model;

[0026] Figure 4 A flowchart illustrating the working principle of the multi-stage air classifier is provided for this utility model.

[0027] Legend: 1. Outer shell; 2. Fixing device; 21. Baffle; 22. Annular groove; 23. Rubber band; 24. L-shaped plate; 25. Threaded rod; 26. Slide rod; 27. Arc plate; 28. Round bar; 29. ​​Screw; 3. Screening device; 31. Groove; 32. Filter plate; 33. Magnetic block; 34. Clamping rod; 35. Spring; 4. Y80~315 motor; 5. Feed inlet; 6. Cyclone separator; 7. Spreading disc; 8. Blades; 9. Discharge hopper. Detailed Implementation

[0028] Example 1, as Figure 1-4 As shown, the multi-stage air classifier includes a housing 1. A feed inlet 5 is fixedly connected to the top of the housing 1. A Y80-315 motor 4 is fixedly connected to the top of the housing 1. A rotating shaft is rotatably connected to the inner wall of the housing 1. The rotating shaft is driven by the Y80-315 motor 4. A spreading disc 7 is fixedly connected to the surface of the rotating shaft. A blade 8 is fixedly connected to one end of the rotating shaft. A buffer plate is fixedly connected to the surface of the rotating shaft. A cyclone separator 6 is fixedly connected to the surface of the housing 1. A discharge hopper 9 is fixedly connected to the bottom of the cyclone separator 6. A discharge port is fixedly connected to the bottom of the housing 1. A fixing device 2 is provided on the surface of the discharge port.

[0029] Working principle: When screening powder, the powder is poured into the interior of the outer casing 1 through the feed inlet 5. The Y80-315 motor 4 is started, causing the feeding disc 7 and blades 8 to rotate, activating the cyclone separator 6. This allows coarse powder to fall out from the discharge outlet by gravity, while fine powder is blown into the discharge hopper 9 through the cyclone separator 6 and blades 8, thus separating the powder. The working principle of the multi-stage powder classifier mainly includes the following steps:

[0030] Material dispersion: After entering the classifier, the material is dispersed and thrown between the guide vanes 8 and the rotor by the action of the spreading disc 7 and the buffer plate. The material is classified in the rotating airflow.

[0031] Centrifugal force: The rotor rotates at high speed, generating centrifugal force. Coarse particles are thrown to the edge and fall due to the large centrifugal force, while fine particles are carried upward by the airflow.

[0032] Airflow action: Fine particles enter the cyclone separator 6 under the action of airflow, while coarse particles return to the sorting area through the circulation channel for re-grinding.

[0033] Graded collection: Fine powder is collected by entering the cyclone separator 6 with the airflow, while coarse powder is returned to the sorting area for further processing.

[0034] Reference Figure 2 The fixing device 2 includes an annular groove 22 formed on the surface of the discharge port, a rubber band 23 is provided inside the annular groove 22, a baffle 21 is fixedly connected to the surface of the discharge port, an L-shaped plate 24 is fixedly connected to the surface of the discharge port, a threaded rod 25 is threadedly connected to the surface of the L-shaped plate 24, an arc plate 27 is rotatably connected to one end of the threaded rod 25, a round strip 28 is fixedly connected to the surface of the arc plate 27, the round strip 28 is a rubber strip, a sliding rod 26 is slidably connected to the surface of the L-shaped plate 24, an arc plate 27 is fixedly connected to one end of the sliding rod 26, and a screw 29 is threadedly connected to the side of the L-shaped plate 24, one end of the screw 29 abuts against the surface of the threaded rod 25.

[0035] Working principle: When it is necessary to fix the collection bag, the rubber band 23 is removed from the inside of the annular groove 22, and the collection bag is placed on the surface of the discharge port. The rubber band 23 is then inserted into the inside of the annular groove 22. Under the action of the baffle 21, the collection bag will not slip off the surface of the discharge port. When the collection bag is placed on the surface of the discharge port, the threaded rod 25 is turned by hand, causing the arc plate 27 to move towards the surface of the discharge port. Under the action of the sliding rod 26, the arc plate 27 will not rotate with the rotation of the threaded rod 25. After the collection bag is pressed against the surface of the discharge port by the arc plate 27, the round bar 28 will prevent the collection bag from slipping off the surface of the discharge port, thus avoiding slippage. After the arc plate 27 is pressed against the surface of the discharge port, the screw 29 is screwed into the inside of the L-shaped plate 24, and one end of the screw 29 is pressed against the surface of the threaded rod 25, thereby achieving the function of fixing the collection bag.

[0036] Reference Figure 3 The discharge hopper 9 is equipped with a screening device 3. The screening device 3 includes a groove 31 inside the discharge hopper 9. A filter plate 32 is slidably connected inside the groove 31. A magnetic block 33 is fixedly connected to the inner wall of the groove 31. The magnetic block 33 is magnetically connected to the side of the filter plate 32. A locking rod 34 is inserted into the surface of the discharge hopper 9. One end of the locking rod 34 is inserted into the inside of the circular groove. A spring 35 is sleeved on the surface of the locking rod 34. The two ends of the spring 35 are fixedly connected to the surface of the discharge hopper 9 and one end of the locking rod 34, respectively.

[0037] Working principle: When fine powder needs to be screened again, the filter plate 32 is inserted into the groove 31. Under the action of the magnetic block 33, the filter plate 32 can be fixed inside the groove 31, thus achieving the function of fixing the filter plate 32. The clamping rod 34 is inserted into the circular groove. Under the action of the spring 35, the clamping rod 34 will not slip out of the circular groove, thus achieving the function of fixing the filter plate 32, thereby achieving the function of screening fine powder.

Claims

1. A multi-stage air classifier, comprising a housing (1), a feed inlet (5) fixedly connected to the top of the housing (1), a motor (4) fixedly connected to the top of the housing (1), a rotating shaft rotatably connected to the inner wall of the housing (1), the rotating shaft being driven by the motor (4), a spreading disc (7) fixedly connected to the surface of the rotating shaft, a blade (8) fixedly connected to one end of the rotating shaft, and a buffer plate fixedly connected to the surface of the rotating shaft, characterized in that: A cyclone separator (6) is fixedly connected to the surface of the outer shell (1). A discharge hopper (9) is fixedly connected to the bottom of the cyclone separator (6). A discharge port is fixedly connected to the bottom of the outer shell (1). A fixing device (2) is provided on the surface of the discharge port. The fixing device (2) includes an annular groove (22) formed on the surface of the discharge port. A rubber band (23) is provided inside the annular groove (22). A baffle (21) is fixedly connected to the surface of the discharge port.

2. The multi-stage air classifier according to claim 1, characterized in that: An L-shaped plate (24) is fixedly connected to the surface of the discharge port. A threaded rod (25) is threadedly connected to the surface of the L-shaped plate (24). An arc-shaped plate (27) is rotatably connected to one end of the threaded rod (25). A round strip (28) is fixedly connected to the surface of the arc-shaped plate (27). The round strip (28) is a rubber strip.

3. The multi-stage air classifier according to claim 2, characterized in that: The surface of the L-shaped plate (24) is slidably connected to a slide rod (26), and one end of the slide rod (26) is fixedly connected to an arc-shaped plate (27).

4. The multi-stage air classifier according to claim 3, characterized in that: The side of the L-shaped plate (24) is threaded with a screw (29), one end of which abuts against the surface of the threaded rod (25).

5. The multi-stage air classifier according to claim 4, characterized in that: The discharge hopper (9) is equipped with a screening device (3), which includes a groove (31) inside the discharge hopper (9) and a filter plate (32) is slidably connected inside the groove (31).

6. The multi-stage air classifier according to claim 5, characterized in that: A magnetic block (33) is fixedly connected to the inner wall of the groove (31), and the magnetic block (33) is magnetically connected to the side of the filter plate (32).

7. The multi-stage air classifier according to claim 6, characterized in that: A clamping rod (34) is inserted into the surface of the discharge hopper (9), and one end of the clamping rod (34) is inserted into the inside of the circular groove.

8. The multi-stage air classifier according to claim 7, characterized in that: A spring (35) is fitted on the surface of the clamp (34), and the two ends of the spring (35) are fixedly connected to one end of the clamp (34) on the surface of the discharge hopper (9).

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