Molecular sieve screening device
By introducing a dispersion mechanism, a multi-stage screening mechanism and a drying mechanism into the molecular sieve screening device, the problems of poor dispersion of raw materials and low accuracy in traditional screening devices are solved, and efficient and accurate screening and drying treatment are achieved, reducing energy consumption and production costs.
Patent Information
- Application Number
- CN202520131534.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2035-01-21
AI Technical Summary
Traditional molecular sieve screening devices are difficult to effectively disperse and mix raw materials during the screening process, resulting in low screening efficiency and accuracy. The screened molecular sieve contains moisture or impurities, which requires additional treatment, which increases energy consumption and production costs.
A molecular sieve screening device is designed, and a dispersion mechanism, a multi-stage screening mechanism and a drying mechanism are introduced to disperse raw materials through a rotating shaft and a dispersion rod, and the screening accuracy is improved by using a multi-stage screen and a barrier sheet, and the screening and drying are synchronized through a drying mechanism.
It improves screening efficiency and accuracy, simplifies subsequent processing steps, reduces energy consumption and production costs, and ensures high-quality production of molecular sieves.
Smart Images
Figure CN222568441U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of molecular sieves, and in particular relates to a molecular sieve screening device. Background Art
[0002] Screening is a crucial link in the production, processing and application of molecular sieves. Molecular sieves, as an inorganic material with a special pore structure, have shown broad application prospects in gas separation, liquid decolorization, drying, purification and catalytic reactions due to their unique screening effect, adsorption performance and catalytic activity. However, the performance and effect of molecular sieves depend to a large extent on their particle size and distribution. Therefore, screening technology is crucial to ensure the quality of molecular sieve products.
[0003] Traditional molecular sieve screening devices usually use simple vibrating screens or rotary screens. Although these devices can meet the screening needs to a certain extent, they have many shortcomings. Traditional molecular sieve screening devices often lack effective dispersion and mixing of raw materials during the screening process, resulting in agglomeration or accumulation of raw materials on the screen, further reducing the screening efficiency and screening accuracy. At the same time, the molecular sieve after screening often contains a certain amount of moisture or impurities, which requires further processing to meet the application requirements, which increases the complexity and energy consumption of subsequent processing steps. Utility Model Content
[0004] The utility model provides a molecular sieve screening device, which realizes the screening and drying treatment of the molecular sieve by introducing a dispersion mechanism, a multi-stage screening mechanism and a drying mechanism, which not only improves the screening efficiency and screening accuracy, but also simplifies the subsequent processing steps and reduces energy consumption and production costs.
[0005] The technical solution of the utility model is:
[0006] The top of the screening box is provided with a feed port, a sleeve is provided at the center of the bottom of the feed port, a bearing is provided in the sleeve, the sleeve is arranged in the screening box through a fixed frame, and there is also a baffle in the screening box; the dispersion mechanism includes a rotating shaft that penetrates the sleeve and is fixedly connected to the bearing, the rotating shaft extends to the inside of the screening box, the end of the rotating shaft away from the inside of the screening box is connected to a motor, and the end of the rotating shaft extending to the inside of the screening box is provided with a plurality of dispersion rods, and the plurality of dispersion rods are staggered and welded on the rotating shaft at equal intervals from top to bottom, and the lengths of the plurality of dispersion rods increase in sequence from top to bottom; the screening The sub-mechanism includes a first screen and a second screen which are sequentially arranged below the rotating shaft, and a vibration motor is arranged at the bottom of the first screen and the second screen. One end of the first screen and the second screen is fixed to the inner wall of the screening box, and the other end is fixed to the other side of the inner wall of the screening box through an "L"-shaped fixing rod, and the upper side walls of the connection between the two "L"-shaped fixing rods and the screening box are respectively provided with a first discharge port and a second discharge port; the drying mechanism includes a plurality of baking air outlets arranged on the inner wall of the screening box, and the baking air outlet is connected to an external heating wire and a fan at one end away from the screening box.
[0007] Preferably, the aperture of the first sieve is larger than the aperture of the second sieve.
[0008] Preferably, a plurality of blocking sheets are arranged between the first sieve and the second sieve, one end of the blocking sheet is arranged at the bottom of the first sieve, and the vertical distance between the other end of the blocking sheet and the second sieve allows the molecular sieve on the second sieve to pass through.
[0009] Preferably, a plurality of elastic balls are arranged in the interval formed by the second screen and the upper blocking sheet.
[0010] Preferably, the diameter of the elastic ball is larger than the vertical distance between the other end of the blocking piece and the second screen.
[0011] Preferably, a fan is fixedly installed on the top of the screening box, the air inlet of the fan is fixedly connected to a dust suction pipe, the end of the dust suction pipe away from the fan passes through and extends into the screening box, and the air outlet of the fan is connected to a dust exhaust pipe.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] 1. The utility model is provided with a dispersing mechanism, so that the molecular sieve is dispersed before screening, thus avoiding agglomeration and accelerating the dispersing speed.
[0014] 2. The utility model divides the space between the two screens into a number of small grids by setting a blocking sheet between the first screen and the second screen, and then places elastic balls in the small grids. On the one hand, the elastic balls can speed up the screening of the molecular sieve and prevent the molecular sieve from clogging the mesh of the screen. On the other hand, it improves the problem of the elastic balls concentrating in a certain place due to the vibration of the screen or the rolling of the molecular sieve.
[0015] 3. The utility model can absorb the dust generated in the screening process to a certain extent through the coordinated use of the fan, the dust suction pipe and the dust exhaust pipe, and prevent the impurities and the molecular sieve from mixing and affecting the product quality.
[0016] 4. The utility model combines the drying mechanism and the screening mechanism closely, realizing the simultaneous screening and drying, avoiding the cumbersome steps of separate drying after traditional screening, and further reducing the overall energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural schematic diagram of the molecular sieve screening device of the utility model.
[0018] In the figure, 1. screening box; 2. rotating shaft; 3. dispersion rod; 4. first screen; 5. second screen; 6. vibration motor; 7. "L"-shaped fixing rod; 8. first discharge port; 9. second discharge port; 10. baking outlet; 11. blocking sheet; 12. elastic ball; 13. fan; 14. dust suction pipe; 15. dust exhaust pipe; 16. feed port; 17. discharge port; 18. baffle. DETAILED DESCRIPTION
[0019] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.
[0020] Example 1
[0021] like Figure 1 As shown, the molecular sieve screening device comprises a screening box 1, a dispersing mechanism, a screening mechanism and a drying mechanism; a feed port 16 is arranged at the top of the screening box 1, and a baffle 18 is arranged obliquely in the screening box, and the included angle between the baffle and the inner wall of the screening box in the vertical direction is 30°, so as to prevent the molecular sieve raw material from flowing out directly from the first discharge port without screening; a sleeve is arranged at the center position of the bottom of the feed port 16, and the sleeve is arranged in the screening box 1 through a fixed frame, and a bearing is arranged in the sleeve, and a discharge port 17 is arranged at the bottom of the screening box 1; the dispersing mechanism comprises a rotating shaft 2 which passes through the sleeve and is fixedly connected to the bearing, and the rotating shaft 2 extends to the inside of the screening box 1, and the end of the rotating shaft 2 away from the inside of the screening box 1 is connected to a motor, and the motor maintains the rotation of the rotating shaft 2; a plurality of dispersing rods 3 are arranged at one end of the rotating shaft 2 extending to the inside of the screening box 1, and the plurality of dispersing rods 3 are staggered and welded on the rotating shaft 2 at equal intervals from top to bottom, and the lengths of the plurality of dispersing rods 3 increase successively from top to bottom, and the dispersed and staggered arrangement is conducive to the dispersion of the molecular sieve;
[0022] The screening mechanism includes a first screen 4 and a second screen 5 which are sequentially arranged below the rotating shaft 2, wherein the aperture of the first screen 4 is larger than that of the second screen 5; a vibration motor 6 is arranged at the bottom of each of the first screen 4 and the second screen 5, and the vibration motor 6 is used to vibrate the molecular sieves on the first screen 4 and the second screen 5 to accelerate the screening effect; one end of the first screen 4 and the second screen 5 is fixed to the inner wall of the screening box 1, and the other end is fixed to the other side wall of the inner wall of the screening box 1 through an "L"-shaped fixing rod 7, and the upper side walls of the connection between the two "L"-shaped fixing rods 7 and the screening box 1 are respectively provided with a first discharge port 8 and a second discharge port 9, and the first discharge port 8 and the second discharge port 9 are respectively arranged corresponding to the first screen 4 and the second screen 5;
[0023] A plurality of blocking sheets 11 are arranged between the first sieve 4 and the second sieve 5, one end of the blocking sheet 11 is arranged at the bottom of the first sieve 4, and the vertical distance between the other end of the blocking sheet 11 and the second sieve 5 enables the molecular sieve on the second sieve 5 to pass through; a plurality of elastic balls 12 are arranged in the interval formed by the second sieve 5 and the upper end blocking sheet 11, the diameter of the elastic balls 12 is greater than the vertical distance between the bottom of the blocking sheet 11 and the second sieve 5, thereby ensuring that the elastic balls are always on the second sieve 5 and will not flow out with the molecular sieve.
[0024] The drying mechanism comprises a plurality of baking air outlets 10 arranged on the inner wall of the screening box 1 , and one end of the baking air outlet 10 away from the screening box 1 is connected to an external heating wire and a fan 13 .
[0025] A fan 13 is fixedly installed on the top of the screening box 1, and a dust suction pipe 14 is fixedly connected to the air inlet of the fan 13. The end of the dust suction pipe 14 away from the fan 13 penetrates and extends into the screening box 1, and the air outlet of the fan 13 is connected to a dust exhaust pipe 15.
[0026] Working process: The molecular sieve raw material is put into the device through the feed port 16 at the top of the screening box, the motor is started, and the rotating shaft 2 and the dispersion rod 3 are driven to rotate, and the molecular sieve raw material is dispersed in the screening box 1 to avoid agglomeration. The dispersed molecular sieve raw material is screened through the first screen 4 and the second screen 5 in turn. The apertures of the first screen 4 and the second screen 5 are different, which realizes the multi-stage screening of the molecular sieve. At the same time, the elastic ball 12 and the blocking sheet 11 at the upper end of the second screen 5 are used in combination to further improve the screening accuracy. The molecular sieves of different particle sizes after screening are discharged through the first discharge port 8 and the second discharge port 9 respectively. During the screening process, the heating wire and the fan are started, and the hot air is blown into the screening box 1 through the baking outlet 10 to perform preliminary drying treatment on the screened molecular sieve. The top fan 13 is started, and the dust suction pipe 14 sucks away the dust generated during the screening process and discharges it through the dust exhaust pipe 15, ensuring the cleanliness of the working environment.
Claims
1. A molecular sieve screening device, characterized in that: It comprises a screening box (1), a dispersion mechanism, a screening mechanism and a drying mechanism; The screening box (1) is provided with a feed port (16) at the top, a sleeve is provided at the center of the bottom of the feed port (16), a bearing is provided in the sleeve, the sleeve is arranged in the screening box (1) through a fixing frame, a discharge port (17) is provided at the bottom of the screening box (1), and a baffle (18) is also provided in the screening box (1); The dispersion mechanism comprises a rotating shaft (2) penetrating the sleeve and fixedly connected to the bearing, the rotating shaft (2) extending into the interior of the screening box (1), one end of the rotating shaft (2) away from the interior of the screening box (1) being connected to a motor, and one end of the rotating shaft (2) extending into the interior of the screening box (1) being provided with a plurality of dispersion rods (3), and the plurality of dispersion rods (3) are staggered and welded on the rotating shaft (2) at equal intervals from top to bottom, and the lengths of the plurality of dispersion rods (3) are increased in sequence from top to bottom; The screening mechanism comprises a first screen (4) and a second screen (5) which are arranged in sequence below the rotating shaft (2); a vibration motor (6) is arranged at the bottom of each of the first screen (4) and the second screen (5); one end of the first screen (4) and the second screen (5) is fixed to the inner wall of the screening box (1); the other end is fixed to the other side of the inner wall of the screening box (1) via an "L"-shaped fixing rod (7); and a first discharge port (8) and a second discharge port (9) are respectively arranged on the upper side wall of the connection between the two "L"-shaped fixing rods (7) and the screening box (1); The drying mechanism comprises a plurality of baking air outlets (10) arranged on the inner wall of the screening box (1), and one end of the baking air outlet (10) away from the screening box (1) is connected to an external heating wire and a fan (13).
2. The molecular sieve screening device according to claim 1, characterized in that: The aperture of the first sieve (4) is larger than the aperture of the second sieve (5).
3. The molecular sieve screening device according to claim 1, characterized in that: A plurality of blocking sheets (11) are arranged between the first sieve (4) and the second sieve (5); one end of the blocking sheet (11) is arranged at the bottom of the first sieve (4); and the vertical distance between the other end of the blocking sheet (11) and the second sieve (5) enables the molecular sieve on the second sieve (5) to pass through.
4. The molecular sieve screening device according to claim 3, characterized in that: A plurality of elastic balls (12) are arranged in a space formed by the second screen (5) and the upper blocking sheet (11).
5. The molecular sieve screening device according to claim 4, characterized in that: The diameter of the elastic ball (12) is greater than the vertical distance between the other end of the blocking sheet (11) and the second screen (5).
6. The molecular sieve screening device according to claim 1, characterized in that: A fan (13) is fixedly mounted on the top of the screening box (1); an air inlet of the fan (13) is fixedly connected to a dust suction pipe (14); an end of the dust suction pipe (14) away from the fan (13) passes through and extends into the screening box (1); and an air outlet of the fan (13) is connected to a dust exhaust pipe (15).