Split type powder removing sieve

Abstract

The utility model discloses a split type powder removing sieve which comprises a shell, a rotary sieve and a control box, the rotary sieve is vertically and fixedly installed on the top of the control box, and the shell is fixedly installed on the outer side of the rotary sieve on the control box through a plurality of pentagonal screws; the shell is composed of an upper outer cover and a lower outer cover, and the upper outer cover and the lower outer cover are connected in parallel from top to bottom. The shell on the powder removing sieve is divided into the upper outer cover and the lower outer cover which are detachable, and the hoop is arranged at the joint, so that the connecting direction of the upper outer cover and the lower outer cover can be adjusted by loosening the hoop, the discharging direction of the discharging pipe on the upper outer cover can be rotationally adjusted, and meanwhile, the lower outer cover can rotate along the middle position of the control box; therefore, the feeding direction of the feeding pipe is adjusted, the feeding direction and the discharging direction of the powder removing sieve can be adjusted, the feeding and discharging directions of materials are not limited, the adaptability of the powder removing sieve to the use environment is improved, the powder removing sieve can be connected with multiple working procedure devices, and multiple purposes are achieved through one machine.

Description

Technical Field

[0001] The utility model relates to the technical field of powder removing sieving equipment, in particular to a split type powder removing sieve. Background Art

[0002] A powder removing sieve is a device for screening and separating the surface particles, powder layer or mixed granular raw materials of the prepared finished tablets, which makes the processed tablets smooth, collects the drug raw materials, and reduces the production economic cost. It is one of the essential mechanical equipment for pharmaceutical enterprises.

[0003] For the existing powder removing sieve (a vibration rotary powder removing sieve for drug preparation with the application number of 201720936460.4), its feeding and discharging directions are generally left-in and right-out or right-in and left-out, thus restricting the feeding and discharging directions of materials. At the same time, the outer shell of the powder removing sieve is integral, which is inconvenient for disassembly and cleaning. The powder receiving tray and the rotary sieve installed inside the powder removing sieve are integral. Such a connection structure affects the sealing performance of the powder removing sieve. Moreover, the rotary sieve is an integral structure, there are many welding points on the sieve plate, and the powder is easy to hide in the welding seams, which is not easy to clean and affects the powder removing efficiency and effect of the powder removing sieve. Summary of the Utility Model

[0004] In view of the above defects or deficiencies in the prior art, it is desirable to provide a split type powder removing sieve to solve the technical problems that the feeding and discharging directions of the existing powder removing sieve are generally left-in and right-out or right-in and left-out, thus restricting the feeding and discharging directions of materials. At the same time, the outer shell of the powder removing sieve is integral, which is inconvenient for disassembly. The powder receiving tray and the rotary sieve installed inside the powder removing sieve are integral. Such a connection structure affects the sealing performance of the powder removing sieve. At the same time, the rotary sieve is an integral structure, there are many welding points on the sieve plate, and the powder is easy to hide in the welding seams, which is not easy to clean and affects the powder removing efficiency and effect of the powder removing sieve.

[0005] According to the technical solution provided by the embodiment of the present application, the split type powder removing sieve includes an outer shell, a rotary sieve and a control box. The rotary sieve is vertically and fixedly installed on the top of the control box, and the outer shell is fixedly installed on the outside of the rotary sieve on the control box through a plurality of pentagonal screws;

[0006] The outer shell is composed of an upper outer cover and a lower outer cover. The upper outer cover and the lower outer cover are connected in parallel from top to bottom. A clamp is arranged at the connection of the upper outer cover and the lower outer cover, and the clamp is used for fixing the connection of the upper outer cover and the lower outer cover;

[0007] The rotary sieve is composed of an upper sieve body and a lower sieve body, and the upper sieve body and the lower sieve body are connected through a tetrafluoro connection column in the middle;

[0008] A powder receiving tray is installed on the top of the control box, and the bottom of the rotary sieve is in sealed contact with the powder receiving tray;

[0009] A blowing pipe is installed at the center inside the upper outer cover, and its top is fixedly connected to the air inlet pipe, so that the blowing pipe is used to remove the powder remaining on the rotary sieve.

[0010] Furthermore, a circular chassis is fixedly installed at the bottom of the rotary sieve, so that the chassis is used for all-round feeding of materials.

[0011] Furthermore, a sealing gasket is provided at the connection between the upper outer cover and the lower outer cover for sealing the connection between the upper outer cover and the lower outer cover.

[0012] Furthermore, the lower outer cover abuts against the control box, and the bottom of the lower outer cover is connected to the powder receiving tray. The powder receiving tray is made of silica gel and is used for sealing the connection between the lower outer cover and the control box.

[0013] Furthermore, the rotary sieve includes a plurality of sieve plates, and the plurality of sieve plates are installed spirally from top to bottom on the sieve cylinders on the upper sieve body and the lower sieve body, and the tail end of the sieve plate on the upper sieve body overlaps with the discharge end of the sieve plate on the lower sieve body for a certain length.

[0014] Furthermore, it also includes four evenly distributed keys, which are installed side by side and at intervals in a ring shape at the top of the middle position of the control box, and corresponding positioning grooves are provided on the sieve cylinder of the rotary sieve, so that each evenly distributed key is clamped in the corresponding positioning groove, so that the rotary sieve can rotate 90 degrees along the central position.

[0015] Furthermore, a control panel is also installed on the side of the control box for adjusting the amplitude of the powder removal sieve.

[0016] Furthermore, a transparent viewing window is also provided on the upper outer cover for observing the working conditions inside the powder removal sieve.

[0017] Furthermore, a discharge pipe is provided on the side of the upper outer cover. The discharge pipe is installed on the upper outer cover in a downward inclined shape, and the discharge pipe abuts against the upper discharge port on the rotary sieve, so that the material after powder removal is discharged from the discharge pipe.

[0018] Furthermore, a feed pipe is provided on the side of the lower outer cover corresponding to the discharge port. The feed pipe is installed on the side of the lower outer cover in an upward inclined shape, and the pipe orifice of the feed pipe is located above the chassis 220.

[0019] Furthermore, a powder discharge pipe is also installed on the control box. One end of the powder discharge pipe is connected to the powder discharge port on the powder receiving tray for discharging the screened powder.

[0020] Furthermore, both the sealing gasket and the powder receiving tray are made of silica gel.

[0021] In summary, the beneficial effects of the present application are as follows:

[0022] 1. By setting the outer shell on the powder removal sieve as a detachable upper outer cover and a lower outer cover, and arranging a clamp at the connection, the connection orientation of the upper outer cover to the lower outer cover can be adjusted by loosening the clamp, so as to rotate and adjust the discharging direction of the discharging pipe on the upper outer cover. At the same time, the lower outer cover can also rotate along the middle position of the control box, so as to adjust the feeding orientation of the feeding pipe, so that the feeding and discharging directions on the powder removal sieve can be adjusted, without restricting the inlet and outlet directions of the material, improving the adaptability of the use environment of the powder removal sieve, enabling the powder removal sieve to be connected to multiple process equipment, realizing multi-purpose use of one machine, and improving the practicability of the powder removal sieve;

[0023] 2. By setting the rotating sieve as consisting of an upper sieve body and a lower sieve body, the upper sieve body and the lower sieve body are connected by tetrafluoro connection columns. By setting the rotating sieve on the powder removal sieve as a multi-section sieve body, replacing the original old-fashioned single-section sieve body spiral chute, the rotating sieve is convenient for disassembly and installation, and at the same time is convenient for cleaning material residues;

[0024] 3. By installing a blowing pipe above the center of the upper outer cover of the powder removal sieve, the top of the blowing pipe is communicated with the air inlet pipe, so that high-pressure gas enters the inside of the outer shell, and the residual powder on the sieve plate of the rotating sieve is timely blown into the powder receiving tray, preventing powder residue on the sieve plate and improving the powder removal quality of the powder removal sieve. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, objects and advantages of the present application will become more obvious:

[0026] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0027] Figure 2 It is a schematic diagram of the disassembled structure of the present utility model;

[0028] Figure 3 It is a schematic diagram of the internal structure of the side view of the present utility model;

[0029] Figure 4 It is a schematic diagram of the connection structure between the rotating sieve and the powder receiving tray of the present utility model;

[0030] Figure 5 It is a schematic diagram of the disassembled structure of the rotating sieve of the present utility model.

[0031] Reference numerals in the figure: housing - 100, upper outer cover - 110, lower outer cover - 120, gasket - 130, rotary sieve - 200, upper sieve body - 201, lower sieve body - 202, sieve cylinder - 210, chassis - 220, sieve plate - 230, control box - 300, equalizing key - 310, clamp - 400, powder receiving tray - 500, air blowing pipe - 600, air inlet pipe - 610, control panel - 700. Detailed implementation mode

[0032] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant utility model and not to limit the utility model. In addition, it should be noted that for the sake of description, only the parts related to the utility model are shown in the drawings.

[0033] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and embodiments.

[0034] The split - type powder removal sieve, the structure of which is as Figures 1-5As shown in the figure, it includes a housing 100, a rotary sieve 200 and a control box 300. The rotary sieve 200 is vertically and fixedly installed on the top of the control box 300 and is used to remove the material powder entering the powder removal sieve. The housing 100 is fixedly installed on the outside of the rotary sieve 200 on the control box 300 through a number of five-pointed screws, so that the staff can remove the housing 100 by loosening a number of five-pointed screws and clean the powder removal elements inside the housing 100. The housing 100 is composed of an upper outer cover 110 and a lower outer cover 120. The upper outer cover 110 and the lower outer cover 120 are connected in parallel from top to bottom. A clamp 400 is provided at the connection between the upper outer cover 110 and the lower outer cover 120. Adjusting knobs are provided on both sides of the clamp 400. By rotating the adjusting knobs, the clamp 400 is tightened, so that the clamp 400 fixes the connection between the upper outer cover 110 and the lower outer cover 120. The rotary sieve 200 is composed of an upper sieve body 201 and a lower sieve body 202. The upper sieve body 201 and the lower sieve body 202 are connected by a polytetrafluoroethylene connecting column in the middle, and the structures of the upper sieve body 201 and the lower sieve body 202 are suitable. A cylindrical sieve cylinder 210 is provided in the middle. A number of sieve plates 230 are also fixedly installed on the two sieve cylinders 210. By setting the rotary sieve 200 on the powder removal sieve into multiple sections of sieve bodies to replace the original old-fashioned single-section spiral chute, the rotary sieve is convenient for disassembly and installation, and at the same time is convenient for cleaning material residues. A powder receiving tray 500 is installed on the top of the control box 300. The powder receiving tray 500 is made of silica gel. A pull rod is vertically installed at the center of the powder receiving tray 500. The sieve cylinder 210 on the rotary sieve 200 passes through the pull rod and is fixed on the gland at the top of the sieve cylinder 210. When the fixing bolt at the top of the pull rod is fixed, the rotary sieve 200 abuts against the silica gel powder receiving tray 500, so that the connection is hermetically connected, replacing the poor sealing at the connection between the original integrally arranged rotary sieve 200 and the powder receiving tray 500 and improving the powder removal quality of the powder removal sieve. A blowing pipe 600 is installed at the center inside the upper outer cover 110, and its top is fixedly connected to an air inlet pipe 610, so that the blowing pipe 600 is used to remove the residual powder on the rotary sieve 200, so that the residual powder can enter the powder receiving tray 500 in time.

[0035] During the process of removing powder from the material by the powder removal sieve, the electromagnet oscillator on the powder removal sieve is activated, so that the vibration generated by the electromagnet oscillator drives the rotary sieve 200 on the powder removal sieve to vibrate. The staff conveys the material to be de-powdered into the housing 100 through the feed pipe, so that the circular structure chassis 220 arranged at the bottom of the rotary sieve 200 can input the material into the spiral sieve plate 230 in 360 degrees, so that while the material moves upward on several sieve plates 230, the contaminated powder is removed. There is a discharge plate on the top sieve plate 230, and the discharge plate abuts against the discharge pipe installed on the side of the upper outer cover 110, so that the de-powdered material is discharged from the discharge pipe. When the powder removal sieve removes powder from the material, a blowing pipe 600 is installed above the center of the upper outer cover 110, so that the top of the blowing pipe 600 is communicated with the air inlet pipe 610, so that high-pressure gas enters the inside of the housing 100 to remove the residual powder on the sieve plate 230 of the rotary sieve 200, and the removed powder is blown into the powder receiving tray 500 in time, preventing powder residue on the sieve plate 230 and improving the powder removal quality of the powder removal sieve. The removed powder enters the powder receiving tray 500 and is discharged from the powder outlet arranged on the powder receiving tray 500, thereby improving the powder removal efficiency of the powder removal sieve.

[0036] As a preferred embodiment, please refer to Figure 3 and Figure 4 , a circular structure chassis 220 is also fixedly installed at the bottom of the rotary sieve 200, and the chassis 220 is located at the bottom of the feed pipe, so that the material can enter the chassis 220 in all directions. The diameter of the chassis 220 is larger than that of the sieve plate 230, so that the screened powder on the sieve plate 230 falls into the chassis 220 and enters the powder receiving tray 500 from the chassis 220.

[0037] As a preferred embodiment, please refer to Figure 2 and Figure 3 , a sealing gasket 130 is also arranged at the connection between the upper outer cover 110 and the lower outer cover 120, so that the sealing gasket 130 seals the connection between the upper outer cover 110 and the lower outer cover 120, preventing the powder from spraying out during the screening process and affecting the powder removal environment.

[0038] As a preferred embodiment, please refer to Figure 2 and Figure 3 , the lower outer cover 120 abuts against the control box 300, and the lower outer cover 120 abuts against the powder receiving tray 500 made of silica gel material, so that the powder receiving tray 500 seals the connection between the lower outer cover 120 and the control box 300, preventing the removed powder from leaking out from the connection, thereby improving the powder removal efficiency of the powder removal sieve.

[0039] As a preferred embodiment, please refer to Figure 3 and Figure 5, the rotary sieve 200 includes a plurality of sieve plates 230, and the plurality of sieve plates 230 are spirally installed on the sieve cylinder 210 of the upper sieve body 201 and the lower sieve body 202 from top to bottom. The tail end of the sieve plate 230 on the upper sieve body 201 overlaps with the discharge end of the sieve plate 230 on the lower sieve body 202 for a certain length. A plurality of sieve holes are evenly arranged on the plurality of sieve plates 230. After the electromagnet oscillator on the powder removal sieve is started, it drives the sheet materials entering the chassis 220 from the feed pipe to vibrate and move upward along the spiral sieve plate 230, so that the material powder can be sieved out during the upward movement of the material.

[0040] As a preferred embodiment, please refer to Figure 1 and Figure 2 , it further includes four evenly distributed keys 310, which are installed side by side and at intervals in a ring shape at the top of the middle position of the control box 300. Corresponding positioning grooves are provided on the sieve cylinder 210 of the rotary sieve 200, so that each evenly distributed key 310 is clamped in the corresponding positioning groove, enabling the rotary sieve 200 to rotate 90 degrees along the central position, so that the feeding and discharging directions on the powder removal sieve can be adjusted, without restricting the inlet and outlet directions of the material, improving the adaptability of the use environment, enabling the powder removal sieve to be connected to multiple process equipment, realizing multi-purpose use of one machine, and improving the practicality of the powder removal sieve.

[0041] As a preferred embodiment, please refer to Figure 1 and Figure 2 , a control panel 700 is also installed on the side of the control box 300. The control panel 700 is electrically connected to the electromagnet oscillator for adjusting the amplitude of the powder removal sieve.

[0042] As a preferred embodiment, please refer to Figure 1 and Figure 2 , a transparent viewing window is also provided on the upper outer cover 110 for observing the powder removal situation inside the powder removal sieve.

[0043] As a preferred embodiment, please refer to Figure 1 and Figure 2 , a discharge pipe is provided on the side of the upper outer cover 110. The discharge pipe is installed on the upper outer cover 110 in a downward inclined shape, and the discharge pipe abuts against the upper discharge port on the rotary sieve 200, so that the powder-removed material is discharged from the discharge pipe.

[0044] As a preferred embodiment, please refer to Figure 1 and Figure 2 , a feed pipe is provided on the side of the lower outer cover 120 corresponding to the discharge port. The feed pipe is installed on the side of the lower outer cover 120 in an upward inclined shape, and the pipe orifice of the feed pipe is located above the chassis 220, so that the material directly falls into the chassis 220 after entering from the feed pipe, enabling the powder removal sieve to achieve 360-degree feeding.

[0045] As a preferred embodiment, please refer toFigure 3 and Figure 5 An outlet powder pipe is also installed on the control box 300. One end of the outlet powder pipe is connected to the powder outlet on the powder receiving tray 500 for discharging the sieved powder.

[0046] As a preferred embodiment, please refer to Figure 2 and Figure 3 The sealing gasket 130 and the powder receiving tray 500 are both made of silica gel material, so that the sealing gasket 130 seals and connects the joint of the upper outer cover 110 and the lower outer cover 120 to prevent the powder from spraying out during the sieving process and affecting the powder removal environment. The rotary sieve 200 and the outer shell 100 are in contact with the silica gel material powder receiving tray 500 to seal the joint and prevent the removed powder from leaking out from the joint, thereby improving the powder removal efficiency of the powder removal sieve.

[0047] The working principle of the powder removal sieve of the present utility model is as follows:

[0048] During the process of the powder removal sieve removing powder from the material, the electromagnet oscillator on the powder removal sieve is started. The vibration generated by the electromagnet oscillator drives the rotary sieve 200 on the powder removal sieve to vibrate. The staff conveys the material to be de-powdered into the outer shell 100 through the feed pipe, so that the circular structure chassis 220 provided at the bottom of the rotary sieve 200 is located at the bottom of the feed pipe, so that the material can enter the outer shell 360 degrees. The material entering the chassis 220 moves upward along the spiral sieve plates 230 on the upper sieve body 201 and the lower sieve body 202, and the powder is removed on the vibrating sieve plates. There is a discharge plate on the sieve plate 230 on the upper sieve body, and the discharge plate is in contact with the discharge pipe installed on the side of the upper outer cover 110, so that the de-powdered material is discharged from the discharge pipe. When the powder removal sieve removes powder from the material, a blowing pipe 600 is installed above the center of the upper outer cover 110, so that the top of the blowing pipe 600 is communicated with the air inlet pipe 610, so that high-pressure gas enters the inside of the outer shell 100 to remove the residual powder on the sieve plate 230 of the rotary sieve 200, so that the powder can enter the powder receiving tray 500 in time, preventing the powder from remaining on the sieve plate 230 and affecting the powder removal quality of the powder removal sieve. The removed powder enters the powder receiving tray 500 and is discharged from the powder outlet provided on the powder receiving tray 500, thereby improving the powder removal efficiency of the powder removal sieve.

[0049] In this solution:

[0050] I. By setting the outer shell 100 on the powder removal sieve as a separable upper outer cover 110 and a lower outer cover 120, and by setting the outer shell 100 on the powder removal sieve as a detachable upper outer cover 110 and a lower outer cover 120, the connection orientation between the upper outer cover 110 and the lower outer cover 120 can be adjusted by loosening the clamp 400, so as to rotate and adjust the discharging direction of the discharging pipe on the upper outer cover 110. At the same time, the lower outer cover 120 can also rotate along the middle position of the control box 300, so as to adjust the feeding orientation of the feeding pipe (the feeding direction can be adjusted by 360°), so that the feeding and discharging directions on the powder removal sieve can be adjusted (including discharging in four directions: front, back, left, and right), without restricting the inlet and outlet directions of materials, improving the adaptability of the powder removal sieve to the use environment, enabling the powder removal sieve to be connected to multiple process equipment, realizing multi-purpose use of one machine, and improving the practicability of the powder removal sieve;

[0051] II. By setting the rotary sieve 200 as a separable upper sieve body 201 and a lower sieve body 202, the upper sieve body 201 and the lower sieve body 202 are connected by tetrafluoro connection columns. By setting the rotary sieve 200 on the powder removal sieve as a multi-section sieve body, replacing the original old-fashioned single-section sieve body spiral chute, the rotary sieve 200 is convenient for disassembly and installation, and at the same time convenient for cleaning material residues, thereby improving the powder removal efficiency of the powder removal sieve;

[0052] III. By installing a blowing pipe 600 above the center of the upper outer cover 110 of the powder removal sieve, the top of the blowing pipe 600 is communicated with the air inlet pipe 610, so that high-pressure gas enters the interior of the outer shell 100 to remove the residual powder on the sieve plate 230 of the rotary sieve 200, so that the powder enters the powder receiving tray 500 in time, preventing powder residue on the sieve plate 230 and improving the powder removal quality of the powder removal sieve;

[0053] IV. By setting the rotary sieve 200 and the powder receiving tray 500 of the powder removal sieve as a split type, and arranging four evenly distributed keys 310 on the top of the control box 300 at the empty space in the middle of the powder receiving tray 500, the sieve cylinder 210 on the rotary sieve 200 is positioned and clamped on the four evenly distributed keys 310, so that the rotary sieve 200 can rotate by 90° along the center position of the control box, and at the same time, the discharging pipe on the upper outer cover is synchronously adjusted for discharging, so that the discharging can rotate by 90°. A circular chassis 220 is arranged at the bottom of the rotary sieve 200, and the chassis 220 is arranged at the bottom of the feeding pipe, so that the feeding pipe can feed in all directions by 360°, so that the feeding and discharging directions on the powder removal sieve can be adjusted, without restricting the inlet and outlet directions of materials, and improving the powder removal efficiency of the powder removal sieve.

[0054] The above description is only a preferred embodiment of the present application and an explanation of the technical principles and other solutions used. At the same time, the scope of the utility model involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept of the utility model. For example, the technical solutions formed by mutually replacing the above features with the technical features (but not limited to) having similar functions disclosed in the present application.

Claims

1. A split powder removal screen, comprising a housing (100), a rotary screen (200) and a control box (300), wherein the rotary screen (200) is vertically fixedly mounted on the top of the control box (300), and the housing (100) is fixedly mounted on the outside of the rotary screen (200) on the control box (300) by a plurality of pentagonal screws, wherein: The housing (100) is composed of an upper outer cover (110) and a lower outer cover (120), wherein the upper outer cover (110) and the lower outer cover (120) are connected in parallel from top to bottom, and a clamp (400) is provided at the connection between the upper outer cover (110) and the lower outer cover (120), and the clamp (400) is used to fix the connection between the upper outer cover (110) and the lower outer cover (120); The rotary screen (200) is composed of an upper screen body (201) and a lower screen body (202), wherein the upper screen body (201) and the lower screen body (202) are connected via a polytetrafluoroethylene connecting column; A powder receiving pan (500) is installed on the top of the control box (300), and the bottom of the rotary screen (200) is in sealing contact with the powder receiving pan (500); The air blowing pipe (600) is installed at the center of the upper outer cover (110), and the top of the air blowing pipe (600) is fixedly connected to the air inlet pipe (610), so that the air blowing pipe (600) is used to remove the residual powder on the rotary screen (200).

2. The split powder removal screen according to claim 1 is characterized in that: A circular bottom plate (220) is also fixedly mounted on the bottom of the rotary screen (200), so that the bottom plate (220) can be used for omnidirectional feeding of materials.

3. The split powder removal screen according to claim 1 is characterized in that: A sealing gasket (130) is also provided at the connection between the upper outer cover (110) and the lower outer cover (120) for sealing the connection between the upper outer cover (110) and the lower outer cover (120).

4. The split powder removal screen according to claim 1 is characterized in that: The lower outer cover (120) is in contact with the control box (300), and the bottom of the lower outer cover (120) is connected to the powder receiving tray (500). The powder receiving tray (500) is made of silica gel and is used to seal the connection between the lower outer cover (120) and the control box (300).

5. The split powder removal screen according to claim 1 is characterized in that: The rotary screen (200) further comprises a plurality of screen plates (230), and the plurality of screen plates (230) are installed on the screen cylinders (210) on the upper screen body (201) and the lower screen body (202) in a spiral shape from top to bottom, and the tail end of the screen plate (230) on the upper screen body (201) overlaps with a discharge end of the screen plate (230) on the lower screen body (202).

6. The split powder removal screen according to claim 1 is characterized in that: It also includes four equal-division keys (310) which are installed in parallel and in an annular manner at intervals on the top of the middle position of the control box (300), and the screen cylinder (210) of the rotary screen (200) is provided with corresponding positioning grooves so that each of the equal-division keys (310) can be snapped into the corresponding positioning groove, so that the rotary screen (200) can rotate at an angle of 90 degrees along the center position.

7. The split powder removal screen according to claim 1 is characterized in that: A control panel (700) is also installed on the side of the control box (300) for adjusting the amplitude of the split powder removal screen.

8. The split powder removal screen according to claim 1 is characterized in that: The upper outer cover (110) is also provided with a transparent viewing window for observing the working conditions inside the split powder removal screen.

Images