Modular multi-station combustible powder automatic screening device

Abstract

The utility model discloses a kind of modularization multi-station combustible powder automatic screening devices, it is related to powder screening equipment technical field, including support, the central rod is axially slidingly connected with support, the central rod is driven by driving structure, carries out axial reciprocating motion, the central rod is symmetrically fixed with four connecting frames, far from the end of central rod Vertical fixed with mounting rod, the mounting rod clamps pneumatic clamp, the pneumatic clamp is fixed with screening module far from clamping side, it includes slide bar, the slide bar one end is fixedly connected in pneumatic clamp;Horizontal rotation motor is fixed in the other end of slide bar;Hinged rod is hinged with slide bar, standard sample screen is fixedly connected in turnover motor output end;Any the connecting frame is provided with corresponding discharge pipe, finished product bin, pulse spray head, sieve material collection bin, single station is cleaned, remaining can maintain work, realize approximate continuous production, realize continuous efficient work.

Description

Technical Field

[0001] This utility model relates to the field of powder screening equipment technology, and more specifically, to a modular multi-station automatic screening device for combustible powders. Background Technology

[0002] A combustible powder vibrating screen is an industrial device specifically designed for screening fine solid particles that pose a risk of combustion or explosion. Its structural design fully considers safety factors such as explosion-proof, sealing, and electrostatic protection. This equipment uses a motor to generate regular mechanical vibrations, causing the screen to vibrate at high frequency and low amplitude, thereby achieving precise grading and impurity separation of combustible powders. Its core objective is to ensure the safe handling and quality control of powder materials in flammable and explosive environments such as chemical, pharmaceutical, and food industries, while guaranteeing production safety through efficient and stable screening operations.

[0003] However, traditional combustible powder vibrating screens still have the following problems during use: 1. The screen is easily clogged during the screening process, requiring manual cleaning, which is inefficient and poses a high risk of dust exposure and poor safety; 2. The same device cannot continue to work when the screen is being cleaned, resulting in reduced work efficiency; 3. It is inconvenient to replace the screen after it is damaged. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a modular multi-station automatic sieving device for combustible powder, which aims to solve the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a modular multi-station automatic sieving device for combustible powder, comprising a support frame, characterized in that a limiting sleeve is fixed to the upper surface of the support frame, a central rod is inserted into the limiting sleeve, the central rod is axially slidably connected to the support frame, and the central rod is driven by a driving structure to perform axial reciprocating motion, the driving structure being installed on the top of the support frame; four connecting frames are symmetrically fixed to the central rod, the connecting frames are horizontally arranged and perpendicular to the central rod, and an installation rod is vertically fixed to the end of each connecting frame away from the central rod, the installation rod holding a pneumatic clamp, and a sieving module is fixed to the pneumatic clamp away from the clamping side; the sieving module includes a sliding rod, a horizontal rotating motor, a hinge rod, and a tilting motor. The standard sample sieve and the sliding rod are slidably connected to the upper surface of the support, with one end of the sliding rod fixedly connected to a pneumatic clamp; a horizontal rotation motor is fixed to the other end of the sliding rod; a hinge rod is hinged to the sliding rod and driven by the horizontal rotation motor; a tilting motor is fixed to the hinge rod; the standard sample sieve is fixedly connected to the output end of the tilting motor; each of the connecting frames is equipped with a corresponding discharge pipe, finished product bin, pulse nozzle, oversize collection bin, and discharge port; the discharge pipe is located on one side of the corresponding connecting frame next to the support; the lower side of the finished product bin and the oversize collection bin are both provided with discharge ports; the discharge pipe faces the corresponding finished product bin; the pulse nozzle faces the oversize collection bin; the range of motion of the standard sample sieve completely covers the discharge surface of the pulse nozzle and the discharge pipe.

[0006] Furthermore, the drive structure includes a rotating shaft motor fixed to the lower surface of the top of the bracket; an eccentric rotating shaft fixed to the top output end of the rotating shaft motor, the eccentric rotating shaft being rotatably connected to the upper surface of the bracket; and a connecting rod hinged to the output shaft of the eccentric rotating shaft, the connecting rod being hinged to a central rod.

[0007] The reciprocating motion of the central rod is achieved through the above structure, thereby realizing the screening operation; Furthermore, the screen material collection bin and the finished product bin have a vertical cross-section that is an inverted right-angled trapezoid, with the acute angle side of the bottom of the trapezoid away from the support; both the screen material collection bin and the finished product bin are equipped with overflow pipes on the upper acute angle side.

[0008] The above structure slows down the overflow speed and avoids waste, and the overflow pipe is located at the far end to avoid damaging the motor.

[0009] Furthermore, a screen frame is snapped onto the outer side of the standard sample sieve; the screen frame is fixedly connected to the output end of the flipping motor, and a positioning groove is opened on the outer side of the standard sample sieve; the screen frame has an opening on the side, and curved plates are fixed on both sides of the opening, with holes in the curved plates on both sides through which clamping bolts pass; a positioning protrusion is provided on the inner side of the screen frame, and the positioning protrusion cooperates with the positioning groove.

[0010] The above structure facilitates the replacement of standard sample sieves.

[0011] Furthermore, the bracket has tracks on both sides of the upper surface near the finished product warehouse; a sliding limit block is fixed at the bottom of the slide rod, and the sliding limit block is slidably connected to the track.

[0012] The above structure improves the stability of the sliding bar. Furthermore, the pneumatic clamp includes an upper clamping plate, a clamping plate seat, a cylinder, a connecting plate, a limiting port, and an air inlet. One side of the clamping plate seat is inclined and inserted into the bottom of the mounting rod. There are two cylinders, fixed above the clamping plate seat, which extend and retract vertically. The connecting plate is a vertical plate, which is fixedly connected to the side of the clamping plate seat away from the inclined surface, and the connecting plate is fixedly connected to the sliding rod. The upper clamping plate is fixedly connected to the extension end of the cylinder, and its lower surface is arc-shaped. The upper clamping plate and the clamping plate seat clamp the mounting rod. The limiting port is opened in the middle of the upper clamping plate, and its axis is perpendicular to the arc-shaped axis of the upper clamping plate. The limiting port abuts against the connecting frame.

[0013] The above-described structure enables the pneumatic clamp to hold and fix the object in place while preventing it from shifting.

[0014] Furthermore, the pulse nozzle has two nozzles, and the oversize collection chamber is located between two finished product chambers on the same side; two adjacent standard sample sieves share one oversize collection chamber.

[0015] The above structural design saves space and reduces the number of times the material is discharged from the screen collection bin, thus improving work efficiency.

[0016] The technical effects and advantages of this utility model are as follows: 1. This utility model adopts a four-station parallel arrangement. When a single station is cleaning, the others can continue to work, realizing near-continuous production and achieving continuous and efficient operation.

[0017] 2. Wet cleaning with pulse nozzles reduces manual contact with dust; the modular quick-installation design of the sample sieve facilitates disassembly, greatly simplifying the replacement process, reducing maintenance time and risks, and ensuring safety and convenience.

[0018] 3. By integrating a composite mechanism of quick clamping, pneumatic clutch, horizontal rotation and flipping, the screen achieves the integrated functions of "fixing, driving, switching and cleaning" in a compact manner, with a compact structure and strong practicality. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments will be briefly introduced below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1This is a perspective view of the modular multi-station automatic sieving device for combustible powder of this utility model.

[0021] Figure 2 This is a layout diagram of the screening module in this utility model.

[0022] Figure 3 This is a perspective view of the screening module in this utility model.

[0023] Figure 4 This is a perspective view of the pneumatic clamp in this utility model.

[0024] Figure 5 for Figure 4 A stereoscopic view from another perspective.

[0025] Figure 6 This is a perspective view of the screen frame in this utility model.

[0026] Figure 7 This is a perspective view of the standard sample sieve in this utility model.

[0027] The attached diagram is labeled as follows: 1. Discharge pipe; 2. Finished product bin; 3. Pulse nozzle; 4. Oversize collection bin; 5. Overflow pipe; 6. Support; 7. Eccentric rotating shaft; 8. Rotating shaft motor; 9. Connecting rod; 10. Limiting sleeve; 11. Connecting frame; 12. Mounting rod; 13. Track; 14. Center rod; 15. Standard sample sieve; 16. Pneumatic clamp; 17. Slide rod; 18. Horizontal rotating motor; 19. Tilting motor; 20. Screen frame; 21. Hinge rod; 401. Discharge port; 1501. Positioning groove; 1601. Upper clamping plate; 1602. Clamping plate seat; 1603. Cylinder; 1604. Connecting plate; 1605. Limiting port; 1606. Air inlet; 1701. Sliding limiting block; 2001. Positioning protrusion; 2002. Opening bent plate; 2003. Clamping bolt. Detailed Implementation

[0028] 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.

[0029] refer to Figure 1As shown, the embodiment of this utility model is as follows: A modular multi-station automatic sieving device for combustible powder includes a support 6. A limiting sleeve 10 is fixed on the upper surface of the support 6. A central rod 14 is inserted into the limiting sleeve 10. The central rod 14 is axially slidably connected to the support 6. The central rod 14 is driven by a driving structure to perform axial reciprocating motion. The driving structure is installed on the top of the support 6. The driving structure includes a rotating shaft motor 8 fixed on the lower surface of the top of the support 6. The top of the rotating shaft motor 8... An eccentric rotating shaft 7 with its output end fixed is rotatably connected to the upper surface of the support 6; a connecting rod 9 is hinged to the output shaft of the eccentric rotating shaft 7, and the connecting rod 9 is hinged to a central rod 14. The central rod 14 is symmetrically fixed with four connecting frames 11. The connecting frames 11 are horizontally arranged and perpendicular to the central rod 14. Each connecting frame 11 has a mounting rod 12 vertically fixed at the end away from the central rod 14. The mounting rod 12 holds a pneumatic clamp 16, and a screening module is fixed on the side of the pneumatic clamp 16 away from the clamping side. In the operation of this embodiment, the output shaft of the eccentric rotating shaft 7 is driven by the rotating shaft motor 8 to make a circular motion, which in turn drives the connecting rod 9 to swing, and the center rod 14 to reciprocate under the limit of the limiting sleeve 10, which in turn drives the screening module to reciprocate to achieve screening.

[0030] like Figure 1 , Figure 4 and Figure 5 As shown in this embodiment of the utility model, the pneumatic clamp 16 includes an upper clamping plate 1601, a clamping plate seat 1602, a cylinder 1603, a connecting plate 1604, a limiting port 1605, and an air inlet 1606. One side of the clamping plate seat 1602 is inclined and inserted into the bottom of the mounting rod 12. Two cylinders 1603 are fixed above the clamping plate seat 1602 and extend and retract vertically. The connecting plate 1604 is a vertical plate, which is used for fixing... The connecting plate 1604 is fixedly connected to the slide rod 17 and connected to the clamping plate seat 1602 away from the inclined surface; the upper clamping plate 1601 is fixedly connected to the telescopic end of the cylinder 1603, and its lower surface is arc-shaped. The upper clamping plate 1601 and the clamping plate seat 1602 clamp the mounting rod 12; the limiting port 1605 is opened in the middle of the upper clamping plate 1601, and its axis is perpendicular to the arc surface axis of the upper clamping plate 1601. The limiting port 1605 abuts against the connecting frame 11.

[0031] In the operation of this embodiment, by venting air into the air inlet 1606, the upper clamping plate 1601 moves up and down under the action of the cylinder 1603. The pneumatic clamp 16 is clamped and fixed by the above-mentioned structure, and the axial movement is prevented by the setting of the limiting port 1605.

[0032] like Figure 6 and Figure 7As shown in this embodiment of the present invention, a screen frame 20, made of elastic metal, is snapped onto the outer side of the standard sample sieve 15; the screen frame 20 is fixedly connected to the output end of the flip motor 19; a positioning groove 1501 is provided on the outer side of the standard sample sieve 15; the screen frame 20 has an opening on its side, and a positioning protrusion 2002 of an opening bending plate 2001 is fixed on both sides of the opening; the positioning protrusion 2002 of the opening bending plate 2001 on both sides has a hole, and a clamping bolt 2003 passes through the hole; a positioning protrusion is provided on the inner side of the screen frame 20, and the positioning protrusion cooperates with the positioning groove 1501.

[0033] In the operation of this embodiment, the gap at the opening of the screen frame 20 is increased to facilitate the insertion of the standard sample sieve 15, which is positioned by the positioning groove 1501, and then the clamping bolt 2003 is tightened to achieve locking.

[0034] Each of the connecting frames 11 is provided with a corresponding discharge pipe 1, finished product bin 2, pulse nozzle 3, oversize collection bin 4, and discharge port 401. The discharge pipe 1 is located next to the support 6 on the side corresponding to the connecting frame 11. The lower side of the finished product bin 2 and the oversize collection bin 4 are both provided with discharge ports 401. The discharge pipe 1 faces the corresponding finished product bin 2. The pulse nozzle 3 faces the oversize collection bin 4. The range of motion of the standard sample sieve 15 completely covers the discharge surface of the pulse nozzle 3 and the discharge pipe 1. The pulse nozzle 3 has two nozzles, and the oversize collection chamber 4 is located between two finished product chambers 2 on the same side; two adjacent standard sample sieves 15 share one oversize collection chamber 4. The vertical cross-section of the oversize collection chamber 4 and the finished product chamber 2 is arranged in an inverted right-angled trapezoid, with the acute angle side of the bottom of the trapezoid away from the support 6; both the oversize collection chamber 4 and the upper acute angle side of the finished product are provided with overflow pipes 5; through the above structure, the inverted trapezoid slows down the overflow speed and avoids waste, and the overflow pipe 5 is opened at the far end to avoid damage to the motor.

[0035] In the operation of this embodiment, when the standard sample sieve 15 is below the discharge pipe 1, a flammable powder mixed with water slurry is injected to prevent explosion; during screening, the standard sample sieve 15 reciprocates, and water is supplied to the discharge pipe 1 to facilitate screening, which can be achieved by a three-way pipe and valve, which is existing technology and will not be described in detail here; when the standard sample sieve 15 is below the pulse nozzle 3, the pulse nozzle 3 is activated for cleaning; after opening the corresponding discharge port 401, it is used for cleaning the material on the sieve and collecting the filtered material.

[0036] like Figure 2 and Figure 3As shown in this embodiment of the utility model, the screening module includes a slide rod 17, a horizontal rotation motor 18, a hinge rod 21, a tilting motor 19, and a standard sample sieve 15. The slide rod 17 is slidably connected to the upper surface of the support 6. Tracks 13 are provided on both sides of the upper surface of the support 6 near the finished product hopper 2. A sliding limit block 1701 is fixed at the bottom of the slide rod 17 and is slidably connected to the track 13 to improve the stability of the slide rod 17. One end of the slide rod 17 is fixedly connected to the pneumatic clamp 16. The horizontal rotation motor 18 is fixed to the other end of the slide rod 17. The hinge rod 21 is hinged to the slide rod 17 and driven by the horizontal rotation motor 18. The tilting motor 19 is fixed to the hinge rod 21. The standard sample sieve 15 is fixedly connected to the output end of the tilting motor 19.

[0037] In the operation of this embodiment, the horizontal rotating motor 18 drives the hinge rod 21 to rotate horizontally, placing the standard sample sieve 15 below the discharge pipe 1 or below the pulse nozzle 3 to achieve position switching and cleaning. When the standard sample sieve 15 is below the pulse nozzle 3, the flipping motor 19 is started, so that the sieve is inverted, improving the cleaning effect.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A modular multi-station automatic sieving device for combustible powder, comprising a support frame, characterized in that, A limiting sleeve is fixed to the upper surface of the support, and a central rod is inserted into the limiting sleeve. The central rod is axially slidably connected to the support. The central rod is driven by a drive structure to perform axial reciprocating motion. The drive structure is installed on the top of the support. Four connecting frames are symmetrically fixed to the central rod. The connecting frames are horizontally arranged and perpendicular to the central rod. An installation rod is vertically fixed to the end of each connecting frame away from the central rod. The installation rod holds a pneumatic clamp. A screening module is fixed to the pneumatic clamp on the side away from the clamping side. The screening module includes a slide bar, a horizontal rotation motor, a hinge rod, a tilting motor, and a standard sample sieve. The slide bar is slidably connected to the upper surface of the support, and one end of the slide bar is fixedly connected to a pneumatic clamp. The horizontal rotation motor is fixed to the other end of the slide bar. The hinge rod is hinged to the slide bar and driven by the horizontal rotation motor. The tilting motor is fixed to the hinge rod. The standard sample sieve is fixedly connected to the output end of the tilting motor. Each of the aforementioned connecting frames is equipped with a corresponding discharge pipe, finished product bin, pulse nozzle, oversize collection bin, and discharge port. The discharge pipe is located next to the support frame on the side corresponding to the connecting frame. The lower side of the finished product bin and the oversize collection bin are both provided with discharge ports. The discharge pipe faces the corresponding finished product bin. The pulse nozzle faces the oversize collection bin. The moving range of the standard sample sieve completely covers the discharge surface of the pulse nozzle and the discharge pipe.

2. The modular multi-station automatic sieving device for combustible powder according to claim 1, characterized in that: The drive structure includes a rotating shaft motor fixed to the lower surface of the top of the bracket; an eccentric rotating shaft fixed to the top output end of the rotating shaft motor, the eccentric rotating shaft being rotatably connected to the upper surface of the bracket; and a connecting rod hinged to the output shaft of the eccentric rotating shaft, the connecting rod being hinged to a central rod.

3. The modular multi-station automatic sieving device for combustible powder according to claim 1, characterized in that: The screen material collection bin and the finished product bin are arranged in an inverted right-angled trapezoidal vertical cross section, with the acute angle side of the bottom of the trapezoid away from the support; both the screen material collection bin and the finished product bin are equipped with overflow pipes on the upper acute angle side.

4. The modular multi-station automatic sieving device for combustible powder according to claim 1, characterized in that: A screen frame is snapped onto the outside of the standard sample sieve; the screen frame is fixedly connected to the output end of the flip motor; a positioning groove is opened on the outer side of the standard sample sieve; the screen frame has an opening on the side, and curved plates are fixed on both sides of the opening, with holes in the curved plates on both sides through which clamping bolts pass; a positioning protrusion is provided on the inner side of the screen frame, and the positioning protrusion cooperates with the positioning groove.

5. The modular multi-station automatic sieving device for combustible powder according to claim 1, characterized in that: The support frame has tracks on both sides of the upper surface near the finished product warehouse; the bottom of the slide rod is fixed with a sliding limit block, which is slidably connected to the track.

6. The modular multi-station automatic sieving device for combustible powder according to claim 1, characterized in that: The pneumatic clamp includes an upper clamping plate, a clamping plate seat, a cylinder, a connecting plate, a limiting port, and an air inlet. One side of the clamping plate seat is inclined and inserted into the bottom of the mounting rod. There are two cylinders, which are fixed above the clamping plate seat and extend and retract vertically. The connecting plate is a vertical plate and is fixedly connected to the side of the clamping plate seat away from the inclined surface. The connecting plate is fixedly connected to the sliding rod. The upper clamping plate is fixedly connected to the extension end of the cylinder, and its lower surface is arc-shaped. The upper clamping plate and the clamping plate seat clamp the mounting rod. The limiting port is opened in the middle of the upper clamping plate, and its axis is perpendicular to the arc surface axis of the upper clamping plate. The limiting port abuts against the connecting frame.

7. The modular multi-station automatic sieving device for combustible powder according to claim 1, characterized in that: The pulse nozzle has two nozzles, and the oversize collection chamber is located between two finished product chambers on the same side; two adjacent standard sample sieves share one oversize collection chamber.

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