A feed screening device for a powder selecting machine

Abstract

The utility model belongs to the technical field of powder concentrator, especially involves a powder concentrator is with feeding screening device, including casing, feed inlet, discharge gate and material return, feed inlet is installed in the top of casing, discharge gate is installed in the bottom of casing, material return is installed in the right side of casing, the inside of casing is provided with screening device, and screening device includes vibration mechanism, dismounting mechanism and scattering mechanism, vibration mechanism sets up in the inside of casing, dismounting mechanism sets up in the front and back two sides of casing, scattering mechanism sets up in the inside upper end of casing. The powder concentrator is with feeding screening device, is set up vibration mechanism through the motor one drive shaft and cam rotation, makes the lobe intermittent and the filter screen bottom collision, makes the filter screen vibrate, thereby speeds up the screening of material, is set up scattering mechanism, when material enters the inside of casing, through scattering rod, the agglomerate is scattered, makes it become small granule, thereby facilitates the subsequent screening, improves screening accuracy and quality.

Description

Technical Field

[0001] This utility model relates to the field of air classifier technology, specifically to a feeding and screening device for an air classifier. Background Technology

[0002] Air classifiers are an important component of vertical slag mills and a crucial step in slag grinding. The reason for their existence is to ensure a certain standard and control over the fineness of the slag powder, rather than simply grinding the raw slag into powder. Air classifiers can generally be divided into three main categories: three-stage separation air classifiers, centrifugal air classifiers, and cyclone air classifiers.

[0003] Before the powder selection process, the material needs to be coarsely screened to remove larger coarse particles, thereby improving the powder selection quality. Currently, most factories use a single screen to screen out the coarse material. However, over time, the screen is prone to damage and inconvenient to replace, easily affecting the coarse screening effect. Furthermore, sometimes the size of the material to be processed varies, while the screen size is fixed, making it impossible to flexibly adjust the coarse screening size, resulting in poor coarse screening effects and even affecting subsequent processing results.

[0004] As disclosed in CN220697377U, a feeding screening device for a powder classifier can be easily and conveniently removed and replaced with new screen bars when the screen bars are damaged. The distance between two adjacent screen bars can be adjusted by simply inserting or pulling out the screen bars, thereby achieving the effect of adjusting the screening size. It can be flexibly adjusted according to the different sizes of the materials to be processed, thereby improving the quality of coarse screening.

[0005] However, the device has low material screening efficiency during use, which affects the feeding efficiency of the air classifier.

[0006] Therefore, we urgently need to provide a feeding and screening device for a powder classifier. Utility Model Content

[0007] The purpose of this utility model is to provide a feeding and screening device for a powder classifier, so as to solve the problem of low material screening efficiency during use, which affects the feeding efficiency of the powder classifier, as mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a feeding and screening device for a powder classifier, comprising a housing, a feed inlet, a discharge outlet, and a discharge outlet. The feed inlet is installed on the top of the housing, the discharge outlet is installed on the bottom of the housing, and the discharge outlet is installed on the right side of the housing. A screening device is provided inside the housing, and the screening device includes a vibration mechanism, a disassembly and assembly mechanism, and a dispersing mechanism.

[0009] The vibration mechanism is located inside the housing, the disassembly and assembly mechanism is located on the front and rear sides of the housing, and the disassembly mechanism is located at the upper part of the housing.

[0010] The vibration mechanism includes a filter screen, a motor, a rotating shaft, a cam, a spring, and a protrusion. The filter screen is installed inside the housing. The motor is fixedly installed on the back of the housing. The rotating shaft is fixedly installed at the output end of the motor and located below the filter screen. The cam is fixedly installed on the outside of the rotating shaft. One end of the spring is fixedly installed on the inner wall of the cam, and the protrusion is fixedly installed on the other end of the spring.

[0011] Preferably, the cam has an internal mounting groove, the spring is installed inside the cam, and the protrusion can slide along the mounting groove. When the filter screen screens the material, the motor drives the rotating shaft and the cam to rotate, causing the protrusion to intermittently collide with the bottom of the filter screen, causing the filter screen to vibrate, thereby accelerating the screening of the material. At the same time, the protrusion squeezes the spring to slide along the mounting groove, avoiding hard collision between the protrusion and the filter screen and preventing damage to the filter screen.

[0012] Preferably, the disassembly and assembly mechanism includes a bracket, a second spring, a stop block, a locking rod, a connecting rod, a limiting plate, and a baffle. The bracket is fixedly installed on the front and rear sides of the housing. One end of the second spring is fixedly installed on the inner wall of the bracket. The stop block is fixedly installed on the other end of the second spring. The locking rod is fixedly installed on the end of the stop block away from the second spring and extends into the housing. The connecting rod is fixedly installed on the front of the stop block. The limiting plate is rotatably connected to the front of the connecting rod. The baffle is fixedly installed on the front of the bracket.

[0013] Preferably, the filter screen has four locking holes on its sides, and the diameter of the locking rod is equal to the diameter of the locking hole. After the filter screen is installed at an angle inside the housing, it is fixed by engaging with the locking holes on the side of the filter screen through the four locking rods.

[0014] Preferably, the baffle is L-shaped. When the limiting plate abuts against the outer wall of the baffle, the locking rod is located outside the locking hole of the filter screen. When the filter screen needs to be removed, simply rotate the limiting plate downward and pull the limiting plate outward to move the connecting rod, the stop block and the locking rod outward until the limiting plate abuts against the outer wall of the baffle, so that the locking rod disengages from the locking hole of the filter screen. Similarly, the other three locking rods can be pulled out, and then the filter screen can be pulled outward.

[0015] Preferably, the disintegration mechanism includes a second motor, a drive shaft, a driven shaft, a disintegration rod, and a gear. The second motor is fixedly installed on the back of the housing, the drive shaft is fixedly installed at the output end of the second motor, the driven shaft is rotatably connected to the inside of the housing, the disintegration rod is fixedly installed on the outside of the drive shaft and the driven shaft, and the gear is fixedly installed on the front of the drive shaft and the driven shaft.

[0016] Preferably, the number of dispersing rods is multiple and equidistantly distributed on the outer surfaces of the drive shaft and the driven shaft, and the dispersing rods on the drive shaft and the driven shaft are staggered. When the material enters the shell, the dispersing rods break up the agglomerates into small particles, which facilitates subsequent screening and improves screening accuracy and quality.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This powder classifier uses a feeding screening device. By setting a vibration mechanism, the motor drives the rotating shaft and cam to rotate, causing the protrusions to intermittently collide with the bottom of the filter screen, causing the filter screen to vibrate, thereby accelerating the screening of materials.

[0019] 2. The powder classifier uses a feeding screening device. By setting a dispersing mechanism, when the material enters the shell, the dispersing rod breaks up the agglomerates into small particles, which facilitates subsequent screening and improves screening accuracy and quality. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a rear view of the overall structure of this utility model;

[0022] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0023] Figure 4 This is a cross-sectional view of the internal structure of the shell of this utility model;

[0024] Figure 5 This is a schematic diagram of the vibration mechanism structure of this utility model;

[0025] Figure 6 This is a split view of the connection between the filter screen and the disassembly mechanism of this utility model.

[0026] In the diagram: 1. Housing; 2. Inlet; 3. Outlet; 4. Outlet; 501. Filter screen; 502. Motor 1; 503. Rotating shaft; 504. Cam; 505. Spring 1; 506. Protrusion; 601. Bracket; 602. Spring 2; 603. Stop; 604. Locking rod; 605. Connecting rod; 606. Limiting plate; 607. Baffle; 701. Motor 2; 702. Drive shaft; 703. Driven shaft; 704. Dispersing rod; 705. Gear. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1:

[0029] Due to the low material screening efficiency of existing technologies, which affects the feeding efficiency of air classifiers, please refer to [link / reference needed]. Figures 1-6 This embodiment provides a feeding and screening device for an air classifier, which can accelerate the screening of materials and improve the feeding efficiency of the air classifier. The feeding and screening device for the air classifier includes a housing 1, a feed inlet 2, a discharge outlet 3, and a return outlet 4. The feed inlet 2 is installed at the top of the housing 1, the discharge outlet 3 is installed at the bottom of the housing 1, and the return outlet 4 is installed on the right side of the housing 1. A screening device is provided inside the housing 1, which includes a vibration mechanism, a disassembly and assembly mechanism, and a dispersing mechanism.

[0030] The vibration mechanism is located inside the housing 1, the disassembly and assembly mechanism is located on the front and rear sides of the housing 1, and the disassembly mechanism is located at the upper part of the housing 1.

[0031] The vibration mechanism includes a filter screen 501, a motor 502, a rotating shaft 503, a cam 504, a spring 505, and a protrusion 506. The filter screen 501 is installed inside the housing 1. The motor 502 is fixedly installed on the back of the housing 1. The rotating shaft 503 is fixedly installed at the output end of the motor 502 and located below the filter screen 501. The cam 504 is fixedly installed on the outside of the rotating shaft 503. A mounting groove is provided inside the cam 504. The spring 505 is installed inside the cam 504, and the protrusion 506 can slide along the mounting groove. When the screen 501 screens the material, the motor 502 drives the rotating shaft 503 and the cam 504 to rotate, causing the protrusion 506 to intermittently collide with the bottom of the screen 501, causing the screen 501 to vibrate, thereby accelerating the screening of the material. At the same time, the protrusion 506 compresses the spring 505 to slide along the mounting groove, avoiding a hard collision between the protrusion 506 and the screen 501, and preventing damage to the screen 501. One end of the spring 505 is fixedly installed on the inner wall of the cam 504, and the protrusion 506 is fixedly installed on the other end of the spring 505.

[0032] The filter screen 501 may be damaged after prolonged use. To facilitate disassembly of the filter screen 501, this device is also equipped with a disassembly and assembly mechanism. The disassembly and assembly mechanism includes a bracket 601, a second spring 602, a stop block 603, a locking rod 604, a connecting rod 605, a limiting plate 606, and a baffle 607. The bracket 601 is fixedly installed on the front and rear sides of the housing 1. One end of the second spring 602 is fixedly installed on the inner wall of the bracket 601. The stop block 603 is fixedly installed on the other end of the second spring 602. The locking rod 604 is fixedly installed on the end of the stop block 603 away from the second spring 602 and extends into the housing 1. The filter screen 501 has locking holes around its sides. The diameter of the locking rod 604 is equal to the diameter of the locking holes. After the filter screen 501 is installed at an angle inside the housing 1, the four locking rods 604 connect with the locking holes on the sides of the filter screen 501. The filter screen 501 is fixed by a locking hole. The connecting rod 605 is fixedly installed on the front of the stop block 603. The limiting plate 606 is rotatably connected to the front of the connecting rod 605. The baffle 607 is fixedly installed on the front of the bracket 601. The baffle 607 is L-shaped. When the limiting plate 606 abuts against the outer wall of the baffle 607, the locking rod 604 is located outside the locking hole of the filter screen 501. When the filter screen 501 needs to be removed, simply rotate the limiting plate 606 downward and pull the limiting plate 606 outward to move the connecting rod 605, the stop block 603 and the locking rod 604 outward until the limiting plate 606 abuts against the outer wall of the baffle 607, so that the locking rod 604 disengages from the locking hole of the filter screen 501. Similarly, the other three locking rods 604 can be pulled out, and then the filter screen 501 can be pulled out.

[0033] Example 2:

[0034] Based on Example 1, please refer to Figures 1-4 When materials agglomerate, it affects the screening accuracy. Therefore, this device is also equipped with a dispersing mechanism, which includes a second motor 701, a drive shaft 702, a driven shaft 703, dispersing rods 704, and a gear 705. The second motor 701 is fixedly installed on the back of the housing 1. The drive shaft 702 is fixedly installed at the output end of the second motor 701. The driven shaft 703 is rotatably connected to the inside of the housing 1. The dispersing rods 704 are fixedly installed on the outside of the drive shaft 702 and the driven shaft 703. There are multiple dispersing rods 704, which are equidistantly distributed on the outer surface of the drive shaft 702 and the driven shaft 703. The dispersing rods 704 on the drive shaft 702 and the dispersing rods 704 on the driven shaft 703 are staggered. When the material enters the inside of the housing 1, the dispersing rods 704 disperse the agglomerates into small particles, which facilitates subsequent screening and improves screening accuracy and quality. The gear 705 is fixedly installed on the front of the drive shaft 702 and the driven shaft 703.

[0035] In operation, material is fed into the housing 1 through the feed inlet 2. Then, motors 502 and 701 are started. Motor 701 drives the drive shaft 702 to rotate, engaging with two gears 705. This causes the drive shaft 702 and driven shaft 703 to simultaneously rotate the dispersing rod 704, breaking up agglomerates into small particles. The material then falls onto the filter screen 501 for sieving. Small particles enter the classifier through the discharge port 3, while large particles are discharged through the discharge port 4. During sieving, motor 502 drives the rotating shaft 503 and cam 5... 04. Rotate the filter screen 501 so that the protrusion 506 intermittently collides with the bottom of the filter screen 501, causing the filter screen 501 to vibrate and thus accelerate the screening of materials. When it is necessary to disassemble the filter screen 501, simply rotate the limiting plate 606 downward and pull the limiting plate 606 outward to drive the connecting rod 605, the stop block 603 and the locking rod 604 to move outward until the limiting plate 606 abuts against the outer wall of the baffle 607, so that the locking rod 604 disengages from the locking hole opened in the filter screen 501. Similarly, the other three locking rods 604 can be pulled out, and then the filter screen 501 can be pulled outward.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A feeding and screening device for an air classifier, comprising a housing (1), a feed inlet (2), a discharge outlet (3), and a return outlet (4), wherein the feed inlet (2) is installed on the top of the housing (1), the discharge outlet (3) is installed on the bottom of the housing (1), and the return outlet (4) is installed on the right side of the housing (1), characterized in that: The shell (1) is provided with a screening device, which includes a vibration mechanism, a disassembly mechanism and a dispersing mechanism; The vibration mechanism is located inside the housing (1), the disassembly and assembly mechanism is located on the front and rear sides of the housing (1), and the disassembly mechanism is located at the upper part of the housing (1). The vibration mechanism includes a filter screen (501), a motor (502), a rotating shaft (503), a cam (504), a spring (505), and a protrusion (506). The filter screen (501) is installed inside the housing (1). The motor (502) is fixedly installed on the back of the housing (1). The rotating shaft (503) is fixedly installed at the output end of the motor (502) and located at the lower end of the filter screen (501). The cam (504) is fixedly installed on the outside of the rotating shaft (503). One end of the spring (505) is fixedly installed on the inner wall of the cam (504), and the protrusion (506) is fixedly installed on the other end of the spring (505).

2. The feeding and screening device for an air classifier according to claim 1, characterized in that: The cam (504) has an internal mounting groove, the spring (505) is installed inside the cam (504), and the protrusion (506) can slide along the mounting groove.

3. The feeding and screening device for an air classifier according to claim 1, characterized in that: The disassembly and assembly mechanism includes a bracket (601), a second spring (602), a stop block (603), a locking rod (604), a connecting rod (605), a limiting plate (606), and a baffle (607). The bracket (601) is fixedly installed on the front and rear sides of the housing (1). One end of the second spring (602) is fixedly installed on the inner wall of the bracket (601). The stop block (603) is fixedly installed on the other end of the second spring (602). The locking rod (604) is fixedly installed on the end of the stop block (603) away from the second spring (602) and extends into the interior of the housing (1). The connecting rod (605) is fixedly installed on the front of the stop block (603). The limiting plate (606) is rotatably connected to the front of the connecting rod (605). The baffle (607) is fixedly installed on the front of the bracket (601).

4. The feeding and screening device for an air classifier according to claim 3, characterized in that: The filter screen (501) has locking holes around its sides, and the diameter of the locking rod (604) is equal to the diameter of the locking holes.

5. The feeding and screening device for an air classifier according to claim 3, characterized in that: The baffle (607) is L-shaped. When the limiting plate (606) abuts against the outer wall of the baffle (607), the locking rod (604) is located outside the locking hole opened in the filter screen (501).

6. The feeding and screening device for an air classifier according to claim 1, characterized in that: The disintegration mechanism includes a second motor (701), a drive shaft (702), a driven shaft (703), a disintegration rod (704), and a gear (705). The second motor (701) is fixedly installed on the back of the housing (1). The drive shaft (702) is fixedly installed at the output end of the second motor (701). The driven shaft (703) is rotatably connected to the inside of the housing (1). The disintegration rod (704) is fixedly installed on the outside of the drive shaft (702) and the driven shaft (703). The gear (705) is fixedly installed on the front of the drive shaft (702) and the driven shaft (703).

7. The feeding and screening device for an air classifier according to claim 6, characterized in that: The number of the dispersing rods (704) is multiple and they are equidistantly distributed on the outer surfaces of the drive shaft (702) and the driven shaft (703), and the dispersing rods (704) on the drive shaft (702) and the dispersing rods (704) on the driven shaft (703) are staggered.

Images