A flow rate adjustable concentrate delivery mechanism

Abstract

The utility model relates to material conveying technical field, concretely is a kind of concentrated material conveying mechanism of adjustable flow rate, solve the problem proposed in background art, it includes screw conveyor main body, feed inlet, discharge outlet and driving motor, driving motor is variable frequency motor, its output shaft is connected screw shaft through coupling, driving motor is fixed on adjustable base, guide rail is welded in discharge outlet inside, slidingly installed gate on guide rail, gate one end is connected electric push rod, electric push rod is fixed in discharge outlet outside by support, the front section of screw shaft is continuous spiral blade, and the rear section is interval type spiral blade, the adjacent blade spacing of interval type spiral blade is 1.5-2 times of the front section continuous spiral blade pitch.The utility model, by variable frequency motor and adjustable base, the accurate adjustment of conveying speed is realized, simultaneously, the combination structure of the front section continuous spiral blade and the rear section interval type spiral blade is adopted, both ensure conveying efficiency, and reduce material extrusion.

Description

Technical Field

[0001] This utility model relates to the field of material conveying technology, specifically to a concentrate conveying mechanism with adjustable flow rate. Background Technology

[0002] Screw conveyors are continuous conveying equipment widely used in industries such as chemical, food, metallurgy, and building materials. They are mainly used for horizontal or inclined conveying of powdery, granular, or small lump materials. Traditional screw conveyors typically use a constant-speed drive motor, and the material conveying rate is controlled by adjusting the motor speed or changing the screw blade pitch. However, when conveying high-viscosity or easily agglomerated concentrated materials, problems such as material blockage and uneven discharge can easily occur, affecting production efficiency.

[0003] In existing technologies, some screw conveyors adjust the flow rate by adding a manual gate at the discharge port. However, manual operation has low precision and cannot meet the requirements for accurate control. At the same time, materials tend to stick to the screw blades and the inner wall of the trough during the conveying process, resulting in a decrease in conveying efficiency and even causing equipment overload. In addition, traditional screw conveyors are difficult to maintain and clean, and the downtime for maintenance is long, affecting continuous production. Utility Model Content

[0004] To solve the above problems, this utility model provides the following technical solution: an adjustable flow rate concentrate conveying mechanism, including a screw conveyor body, an inlet, an outlet, and a drive motor. The drive motor is a variable frequency motor, and its output shaft is connected to a screw shaft through a coupling. The drive motor is fixed on an adjustable base. A guide rail is welded to the inner side of the outlet, and a gate is slidably installed on the guide rail. One end of the gate is connected to an electric push rod, and the electric push rod is fixed to the outer side of the outlet through a bracket. The front section of the screw shaft has continuous screw blades, and the rear section has spaced screw blades. The spacing between adjacent blades of the spaced screw blades is 1.5-2 times the pitch of the continuous screw blades in the front section.

[0005] Preferably, the bottom of the trough of the screw conveyor body is provided with a vibrator mounting base, and the vibrator mounting base is fixed with a vibrator motor by bolts, and the vibration direction of the vibrator motor is perpendicular to the axis of the screw shaft.

[0006] Preferably, the side wall of the screw conveyor body is provided with a rectangular cleaning port, the edge of the rectangular cleaning port is embedded with a sealing strip, and a cover plate is fixed by quick-release bolts.

[0007] Preferably, the adjustable base is an L-shaped steel plate, the horizontal section of which is connected to the end plate of the screw conveyor body by bolts.

[0008] Preferably, the blade edges of the spaced spiral blades are covered with a polyurethane wear-resistant layer.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] The conveying speed is precisely adjusted by using a variable frequency motor and an adjustable base. The combination of continuous spiral blades at the front and spaced spiral blades at the rear ensures conveying efficiency while reducing material compression. The discharge gate and electric push rod work together to precisely control the discharge volume, and the vibrating motor vibrates vertically to effectively prevent material accumulation. The design of the cleaning port and wear-resistant layer improves the maintainability of the equipment and the service life of key components. The overall structure combines conveying stability, anti-clogging performance, and ease of operation. Attached Figure Description

[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0012] Figure 1 This is a schematic cross-sectional view of the overall structure of this utility model.

[0013] In the diagram: 1. Main body of the screw conveyor; 2. Inlet; 3. Outlet; 4. Drive motor; 5. Coupling; 6. Screw shaft; 7. Adjustable base; 8. Guide rail; 9. Gate; 10. Electric push rod; 11. Bracket; 12. Continuous screw blades; 13. Intermittent screw blades; 14. Vibrator mounting base; 15. Vibration motor; 16. Rectangular cleaning port; 17. Sealing strip; 18. Quick-release bolt; 19. Cover plate. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0015] like Figure 1 As shown, the adjustable flow rate concentrate conveying mechanism of this embodiment includes a screw conveyor body 1, a feed inlet 2, a discharge outlet 3, and a drive motor 4. The drive motor 4 is a variable frequency motor, and its output shaft is connected to the screw shaft 6 through a coupling 5. The drive motor 4 is fixed on an adjustable base 7. A guide rail 8 is welded to the inner side of the discharge outlet 3, and a gate 9 is slidably installed on the guide rail 8. One end of the gate 9 is connected to an electric push rod 10. The electric push rod 10 is fixed to the outer side of the discharge outlet 3 through a bracket 11. The front section of the screw shaft 6 is a continuous screw blade 12, and the rear section is an intermittent screw blade 13. The spacing between adjacent blades of the intermittent screw blade 13 is 1.5-2 times the pitch of the continuous screw blade 12 in the front section.

[0016] The bottom of the trough of the screw conveyor body 1 is provided with a vibrator mounting base 14. The vibrator mounting base 14 is fixed with a vibrator motor 15 by bolts, and the vibration direction of the vibrator motor 15 is perpendicular to the axis of the screw shaft 6.

[0017] The main body 1 of the screw conveyor has a rectangular cleaning port 16 on its side wall. The edge of the rectangular cleaning port 16 is embedded with a sealing strip 17 and a cover plate 19 is fixed by quick-release bolts 18.

[0018] The adjustable base 7 is an L-shaped steel plate, and its horizontal section is connected to the end plate of the screw conveyor body 1 by bolts.

[0019] The blade edges of the spaced spiral blade 13 are covered with a polyurethane wear-resistant layer.

[0020] The working principle of this utility model is as follows:

[0021] The variable frequency motor 4 drives the screw shaft 6 to rotate through the coupling 5. The continuous screw blades 12 at the front section achieve efficient conveying, while the spaced screw blades 13 at the rear section reduce material compression. The material enters from the feed inlet 2 and is conveyed to the discharge outlet 3 through the screw conveyor body 1. The discharge flow rate is controlled by adjusting the opening of the gate 9 through the electric push rod 10. The vibration motor 15 generates vibration perpendicular to the screw shaft 6 to prevent material adhesion and blockage. The cleaning port 16 facilitates maintenance, and the polyurethane wear-resistant layer extends the blade life. The whole system realizes adjustable flow rate and anti-blockage stable conveying of concentrated material.

[0022] 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 process, method, article, or apparatus.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A concentrate conveying mechanism with adjustable flow rate, comprising a screw conveyor body (1), an inlet (2), an outlet (3), and a drive motor (4), characterized in that, The drive motor (4) is a variable frequency motor, and its output shaft is connected to the screw shaft (6) through a coupling (5). The drive motor (4) is fixed on the adjustable base (7). A guide rail (8) is welded to the inner side of the discharge port (3). A gate plate (9) is slidably installed on the guide rail (8). One end of the gate plate (9) is connected to an electric push rod (10). The electric push rod (10) is fixed to the outside of the discharge port (3) through a bracket (11). The front section of the screw shaft (6) is a continuous screw blade (12), and the rear section is an intermittent screw blade (13). The spacing between adjacent blades of the intermittent screw blade (13) is 1.5-2 times the pitch of the continuous screw blade (12) in the front section.

2. The adjustable flow rate concentrate conveying mechanism according to claim 1, characterized in that: The bottom of the feed trough of the screw conveyor body (1) is provided with a vibrator mounting base (14), and the vibrator mounting base (14) is fixed with a vibrator motor (15) by bolts, and the vibration direction of the vibrator motor (15) is perpendicular to the axis of the screw shaft (6).

3. The adjustable flow rate concentrate conveying mechanism according to claim 1, characterized in that: The main body (1) of the screw conveyor has a rectangular cleaning port (16) on its side wall. The rectangular cleaning port (16) is fitted with a sealing strip (17) on its edge and is fixed with a cover plate (19) by quick-release bolts (18).

4. The adjustable flow rate concentrate conveying mechanism according to claim 1, characterized in that: The adjustable base (7) is an L-shaped steel plate, and its horizontal section is connected to the end plate of the screw conveyor body (1) by bolts.

5. The adjustable flow rate concentrate conveying mechanism according to claim 1, characterized in that: The blade edges of the spaced spiral blades (13) are covered with a polyurethane wear-resistant layer.

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