Gypsum powder airflow grading efficient separation equipment
By designing a conical screen structure driven by a transmission motor, the problem of air classifiers being unable to classify larger particles or clumps was solved, achieving efficient separation of gypsum powder and preventing clogging, thus improving the operating efficiency of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZAOZHUANG JINZHENG GYPSUM CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-06-02
AI Technical Summary
Existing air classifiers cannot effectively classify larger particles or clumps in gypsum powder and are prone to clogging of the discharge port.
A high-efficiency air classifier and separation device for gypsum powder was designed. The device uses a drive motor to drive a drive gear and a driven gear ring to rotate a conical screen to screen the gypsum powder. Fine particles pass through the conical screen and enter the air classifier, while larger particles or clumps are recovered through the discharge pipe.
It effectively prevents clogging, improves the efficiency of gypsum powder grading, and ensures the normal operation of the equipment.
Smart Images

Figure CN224308991U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a high-efficiency airflow classification and separation device for gypsum powder, belonging to the field of gypsum powder production technology. Background Technology
[0002] After gypsum powder is produced, it needs to be classified and screened by an air classifier. However, existing air classifiers have a simple structure, and when the gypsum powder contains large particles or lumps, the air classifier not only fails to classify them, but the large particles or lumps can also easily clog the discharge port of the air classifier. To solve the above problems, a new technical solution is provided. Utility Model Content
[0003] The purpose of this invention is to provide a high-efficiency airflow classification and separation device for gypsum powder to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model adopts the following technical solution: a high-efficiency separation device for gypsum powder airflow classification, comprising an airflow classifier, a guide pipe connected to the inlet of the airflow classifier via a flange, a trapezoidal docking seat welded to the top of the guide pipe, a screening box fixed to the top of the trapezoidal docking seat by screws, baffles fixed to both ends of the screening box by screws, an inlet pipe, a outlet pipe, a drive motor and a connecting pipe provided on the baffle, the inlet pipe welded to the middle of the outer end of the left baffle, the outlet pipe welded to the middle of the outer end of the right baffle, the drive motor fixed to one side of the outer end of the left baffle by screws, and the main shaft of the drive motor passing through and extending to the inner end of the left baffle by screws, with a drive gear fixed thereon, and the connecting pipe rotatably connected to the middle of the inner end of the left baffle, and the connecting pipe communicating with the inlet pipe.
[0005] Preferably, the connecting pipe is provided with a driven gear ring and a protective plate. The driven gear ring is fixed to the middle section of the outer side of the connecting pipe by screws and is meshed with the transmission gear. The protective plate is rotatably connected to the right end of the connecting pipe and is fixed to the left side of the inside of the screening box by screws.
[0006] Preferably, a conical screen is installed and fixed to the right side of the protective plate through the right end of the connecting pipe and extended to the right side of the protective plate by screws. The right end of the conical screen is rotatably connected to the inner end of the right end baffle, and the right end of the conical screen is in communication with the discharge pipe.
[0007] Preferably, a sealing plate is fixed between the bottom of the protective plate and the bottom of the baffle at the left end by screws.
[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: A sealing plate is fixed between the bottom of the protective plate and the bottom of the left-end baffle by screws, which can effectively prevent dust from entering between the protective plate and the left-end baffle; the main shaft of the drive motor passes through and extends to the inner end of the left-end baffle, and a drive gear is fixed by screws, which can be easily driven to rotate by the drive motor; the driven gear ring meshes with the drive gear, which can easily drive the driven gear ring to rotate; in summary, this utility model can easily sieve gypsum powder, effectively improving work efficiency. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the structure of this utility model;
[0010] Figure 2 This is a schematic diagram of the trapezoidal docking seat structure of this utility model;
[0011] Figure 3 This is a schematic diagram of the screening box structure of this utility model;
[0012] In the diagram: 1-Air classifier; 2-Feed pipe; 3-Trapezoidal docking seat; 4-Screening box; 5-Baffle; 6-Feed pipe; 7-Discharge pipe; 8-Drive motor; 9-Connecting pipe; 10-Drive gear; 11-Driven gear ring; 12-Protective plate; 13-Conical screen; 14-Sealing plate. Detailed Implementation
[0013] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0014] like Figure 1-3As shown, a high-efficiency air classifier for gypsum powder includes an air classifier 1. A guide pipe 2 is connected to the inlet of the air classifier 1 via a flange. A trapezoidal docking seat 3 is welded to the top of the guide pipe 2. A screening box 4 is fixed to the top of the trapezoidal docking seat 3 by screws. Baffles 5 are fixed to both ends of the screening box 4 by screws. A feed pipe 6, a discharge pipe 7, a drive motor 8, and a connecting pipe 9 are arranged on the baffles 5. The feed pipe 6 is welded to the middle of the outer end of the left baffle 5, and the discharge pipe 7 is welded to the middle of the outer end of the right baffle 5. The drive motor 8 is fixed to one side of the outer end of the left baffle 5 by screws, and the main shaft of the drive motor 8 passes through and extends to the inner end of the left baffle 5, where a drive gear 10 is fixed by screws. The connecting pipe 9 rotates... The inner middle of the baffle 5 on the left end is connected to the connecting pipe 9, which is connected to the feed pipe 6. The connecting pipe 9 is provided with a driven gear ring 11 and a protective plate 12. The driven gear ring 11 is fixed to the middle of the outer side of the connecting pipe 9 by screws, and the driven gear ring 11 is meshed with the transmission gear 10. The protective plate 12 is rotatably connected to the right end of the connecting pipe 9, and the protective plate 12 is fixed to the left side of the screening box 4 by screws. The right end of the connecting pipe 9 extends through and to the right side of the protective plate 12 and is fixed with a conical screen 13 by screws. The right end of the conical screen 13 is rotatably connected to the inner end of the baffle 5 on the right end, and the right end of the conical screen 13 is connected to the discharge pipe 7. The bottom of the protective plate 12 and the bottom of the baffle 5 on the left end are fixed with a sealing plate 14 by screws.
[0015] Specific usage: Connect the discharge pipe 7 to the waste recycling device, then start the drive motor 8 to drive the driven gear ring 11 to rotate. The rotation of the driven gear ring 11 drives the conical screen 13 on the connecting pipe 9 to rotate. Then, gypsum powder is fed into the conical screen 13 through the feed pipe 6. While the conical screen 13 rotates, it screens the gypsum powder. The fine gypsum powder falls into the trapezoidal docking seat 3 under the screening of the conical screen 13. The gypsum powder in the trapezoidal docking seat 3 falls into the air classifier 1 through the guide pipe 2 for classification. At the same time, larger particles or lumps of gypsum powder enter the discharge pipe 7 through the right end of the conical screen 13. The waste gypsum powder in the discharge pipe 7 enters the waste recycling device for recycling.
[0016] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.
Claims
1. A high-efficiency air classifier separation device for gypsum powder, comprising an air classifier (1), characterized in that: The air classifier (1) has a guide pipe (2) connected to the feed inlet by a flange. A trapezoidal docking seat (3) is welded to the top of the guide pipe (2). A screening box (4) is fixed to the top of the trapezoidal docking seat (3) by screws. Baffles (5) are fixed to both ends of the screening box (4) by screws. A feed pipe (6), a discharge pipe (7), a drive motor (8) and a connecting pipe (9) are provided on the baffle (5). The feed pipe (6) is welded to the middle of the outer end of the left baffle (5). The discharge pipe (7) is welded to the middle of the outer end of the right baffle (5). The drive motor (8) is fixed to one side of the outer end of the left baffle (5) by screws. The main shaft of the drive motor (8) passes through and extends to the inner end of the left baffle (5) by screws and a drive gear (10) is fixed to it. The connecting pipe (9) is rotatably connected to the middle of the inner end of the left baffle (5) and is connected to the feed pipe (6).
2. The high-efficiency airflow classification and separation equipment for gypsum powder according to claim 1, characterized in that: The connecting pipe (9) is provided with a driven gear ring (11) and a protective plate (12). The driven gear ring (11) is fixed to the middle section of the outer side of the connecting pipe (9) by screws, and the driven gear ring (11) is meshed with the transmission gear (10). The protective plate (12) is rotatably connected to the right end of the connecting pipe (9), and the protective plate (12) is fixed to the left side of the inside of the screening box (4) by screws.
3. The gypsum powder airflow classification and high-efficiency separation equipment according to claim 2, characterized in that: The right end of the connecting pipe (9) extends through and extends to the right side of the protective plate (12) and is fixed with a conical screen (13) by screws. The right end of the conical screen (13) is rotatably connected to the inner end of the baffle (5) at the right end, and the right end of the conical screen (13) is connected to the discharge pipe (7).
4. The high-efficiency airflow classification and separation equipment for gypsum powder according to claim 2, characterized in that: A sealing plate (14) is fixed between the bottom of the protective plate (12) and the bottom of the baffle (5) at the left end by screws.