Wet ore anti-blocking conical surface feeding device
By combining the design of a conical turntable and spiral blades with airflow and vibration mechanisms, the problem of blockage in high-humidity titanium concentrate was solved, achieving stable material conveying and continuous equipment operation, thereby improving production efficiency and economic benefits.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-03-10
AI Technical Summary
Existing feeding devices are prone to clogging when processing high-humidity, high-viscosity titanium concentrate, resulting in poor production continuity and unstable equipment operation in the drying line.
The design employs a conical turntable and spiral blades in synergy, combined with airflow and vibration mechanisms. Through centrifugal force, shearing force, and airflow stripping action, it prevents material agglomeration and forms a stable material flow.
It significantly improved the equipment operating rate and output of the drying line, reduced downtime frequency, lowered unblocking costs and maintenance expenses, and ensured production continuity and economic benefits.
Smart Images
Figure CN223983195U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mineral processing equipment technology, and in particular to a wet ore anti-clogging conical feeding device. Background Technology
[0002] Titanium concentrate (mainly composed of titanium dioxide) is an important raw material for titanium dioxide and titanium metal smelting. Titanium concentrate obtained in hydrometallurgical processes typically contains 5% to 8% free moisture, and coarse particles with a particle size distribution of +200 mesh (particle size > 0.074 mm) account for about 40%. This type of wet ore needs to be dried to reduce moisture and improve grade. However, due to its high moisture content, high proportion of fine particles, and physical adhesion between coarse particles, material accumulation and agglomeration are very likely to occur at the feeding stage at the front end of the drying line, leading to blockage of the feed pipe and seriously affecting the continuity of production. Currently, the industry generally uses traditional screw feeders, vibrating feeders, or inclined belt conveyors as feeding devices for wet titanium concentrate. However, in actual operation, there are the following significant defects: the discharge pipes of existing feeding devices are mostly straight cylinders or single-angle structures, which lack the ability to adapt to the material flow state. After the surface of wet ore particles absorbs water, the adhesion force increases, and coarse and fine particles are prone to forming an arch bridge effect at the outlet of the hopper. Furthermore, the gap between the blades and the trough of traditional screw feeders is easily filled by viscous materials, causing the screw to idle or the torque to be overloaded.
[0003] Therefore, there is a need to improve the wet ore anti-clogging feeding device in the existing technology. Utility Model Content
[0004] In view of this, the purpose of this utility model embodiment is to provide a wet ore anti-clogging conical feeding device to solve the problem of accumulating and agglomerating water-containing titanium concentrate and prevent clogging, effectively reduce drying line downtime, improve the operating rate of drying line equipment, and increase the output of dried ore.
[0005] Based on the above objectives, this utility model provides a wet ore anti-clogging conical feeding device, including a hopper and a drive motor. The hopper has a discharge port near the bottom on its side. A conical turntable is installed inside the hopper. The drive motor shaft passes through the hopper and connects to the bottom of the conical turntable. At least one helical blade is coaxially arranged with the conical turntable, and the end of the helical blade is detachably connected to the conical turntable.
[0006] In some embodiments, the hopper is cylindrical, the bottom diameter of the conical turntable is equal to the diameter of the hopper, and a flexible sealing edge is provided between the bottom edge of the conical turntable and the inner wall of the hopper.
[0007] In some implementations, the cone angle of the conical turntable is 120° to 140°.
[0008] In some implementations, the cone angle of the conical turntable gradually decreases along the axial direction.
[0009] In some implementations, the drive motor is a geared motor, and the output shaft of the geared motor drives the conical turntable to rotate through a bevel gear set.
[0010] In some embodiments, the bottom of the conical surface of the conical turntable is provided with multiple inclined air holes, and an annular air cavity is provided inside the conical turntable. The annular air cavity extends out of the hopper through a pipeline and is connected to a compressed air source.
[0011] In some implementations, the connection point at the end of the helical blade is at 0 to 1 / 2 of the height of the conical turntable.
[0012] In some implementations, a humidity sensor is installed at the discharge port to display the humidity of the material in real time.
[0013] In some embodiments, the surface of the helical blades is provided with a wear-resistant ceramic liner.
[0014] In some embodiments, a vibration mechanism is arranged circumferentially at the bottom of the conical turntable to assist in material feeding. The vibration mechanism includes an embedded piezoelectric ceramic vibrating plate and a frequency converter.
[0015] This utility model has at least the following beneficial technical effects:
[0016] This invention effectively solves the clogging problem of high-humidity, high-viscosity minerals by improving the internal structure of the silo. Through the synergistic effect of the conical turntable and the spiral blades, it effectively addresses the problem of high-viscosity agglomeration in water-containing titanium concentrate. The centrifugal force generated by the rotating conical turntable evenly disperses the material, and combined with the continuous shearing and pushing action of the coaxial spiral blades, it breaks up the agglomerates formed by the water content of the titanium concentrate, preventing blockage at the discharge port. During operation, the titanium concentrate forms a continuous and stable flow under the dual guidance of the conical surface and the spiral blades, significantly improving the uniformity of feeding in the drying line, reducing the frequency of downtime for cleaning due to blockages, increasing equipment operating rate by more than 20%, and simultaneously increasing the output of dried ore. By ensuring continuous production of the drying line, it reduces annual downtime losses by nearly one million yuan, while also reducing manual cleaning costs and equipment maintenance expenses, resulting in significant economic benefits and providing an efficient and reliable solution for the processing of high-humidity, viscous minerals. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.
[0018] Figure 1A schematic diagram of an embodiment of the wet ore anti-clogging conical feeding device provided by this utility model;
[0019] Figure 2 This utility model provides a schematic diagram of the internal structure of an embodiment of a wet ore anti-clogging conical feeding device.
[0020] Explanation of reference numerals in the attached figures:
[0021] 10. Hopper; 11. Conical turntable; 12. Spiral blade; 13. Discharge port; 14. Material; 15. Fixed plate; 16. Disc; 17. Air hole; 18. Vibration mechanism; 20. Drive motor; 21. Output shaft. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be further described in detail below with reference to specific examples and accompanying drawings.
[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as “length,” “width,” “upper,” “lower,” “left,” “right,” “front,” “rear,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer” indicate orientations or positions based on the orientations or positions shown in the accompanying drawings and are merely for ease of description and should not be construed as limiting the invention.
[0024] The terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this utility model are intended to cover non-exclusive inclusion; the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. "A plurality of" means two or more, unless otherwise explicitly specified.
[0025] In the description, claims, and accompanying drawings of this utility model, when an element is referred to as "fixed to," "mounted to," "set on," or "connected to" another element, it can be directly or indirectly located on that other element. For example, when an element is referred to as "connected to" another element, it can be directly or indirectly connected to that other element.
[0026] Furthermore, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0027] like Figure 1 The image shows a wet ore anti-clogging conical feeding device provided by this utility model, comprising:
[0028] The device includes a hopper 10 and a drive motor 20. The hopper 10 has a discharge port 13 located on its side near the bottom. A conical turntable 11 is installed inside the hopper 10. The rotating shaft 21 of the drive motor 20 passes through the bottom of the hopper 10 and is connected to the bottom of the conical turntable 11. At least one helical blade 12 is coaxially arranged with the conical turntable 11, and the end of the helical blade 12 is detachably connected to the conical turntable 11.
[0029] Furthermore, the hopper 10 is cylindrical, and the bottom diameter of the conical turntable 11 is equal to the diameter of the hopper 10. A flexible sealing edge is provided between the bottom edge of the conical turntable 11 and the inner wall of the hopper 10. This wet ore anti-clogging conical feeding device achieves precise matching of the material flow path through the design of the cylindrical hopper and the bottom diameter of the conical turntable being equal, effectively eliminating the edge material accumulation problem caused by dimensional deviations in traditional structures. The flexible sealing edge between the bottom edge of the conical turntable and the inner wall of the hopper is made of a corrosion-resistant and highly elastic material, such as fluororubber. During dynamic rotation, it can not only tightly fit the inner wall of the hopper to prevent wet ore particles from seeping into gaps and causing blockage, but also compensate for the slight sway of the turntable during operation through flexible deformation, avoiding wear caused by rigid friction.
[0030] In some implementations, such as Figure 2 As shown, a disc 16 is further provided at the bottom of the conical turntable 11. A circular hole is provided at the bottom of the hopper 10 so that the output shaft 21 of the drive motor 20 can pass through the circular hole and connect to the disc 16. A fixing plate 15 is further installed between the output shaft 21 and the bottom of the hopper 10. The fixing plate 15 is fixed to the bottom of the hopper 10 by bolt structure to further reinforce the bottom structure.
[0031] Furthermore, the cone angle of the conical turntable is 120°~140°. Preferably, the cone angle of the conical turntable gradually decreases along the axial direction, with a top cone angle of 120°~140° and a bottom cone angle of 100°~120°, forming a parabolic surface. This wet ore anti-clogging conical feeding device significantly improves the flowability and anti-clogging effect of water-containing titanium concentrate by optimizing the cone angle design of the conical turntable. The cone angle range is set to 120°~140°. The smaller cone angle at the bottom reduces the resistance to material sliding down and avoids stagnation at the bottom due to the viscosity of wet ore; the larger cone angle at the top enhances the centrifugal dispersion effect and accelerates the movement of material towards the discharge port. Furthermore, the parabolic surface formed by the axially gradually changing cone angle simulates the natural sliding trajectory of the material, so that the titanium concentrate is subjected to differentiated shear forces in different areas of the cone surface: the steep angle area at the top quickly breaks up agglomerates, while the gentle angle area at the bottom smoothly guides the flow. This curved surface design reduces the contact area between the material and the cone surface by approximately 15%, significantly reducing the risk of adhesion. Simultaneously, it guides the wet ore to flow uniformly along the optimal path, increasing the flow rate by 20%-30%. Combined with the high wetness characteristics of titanium concentrate, this structure avoids the localized accumulation or excessively rapid slippage that can lead to cavity blockage caused by traditional single-cone angles.
[0032] Furthermore, the drive motor 20 is a geared motor, and the output shaft 21 of the geared motor drives the conical turntable to rotate through a bevel gear set. The high torque and low speed output characteristics provided by the geared motor perfectly match the strong shearing force and stable conveying requirements required for wet ore processing, ensuring that the conical turntable can still operate stably under the high viscosity resistance of water-containing titanium concentrate.
[0033] Furthermore, the conical turntable 11 has multiple inclined air holes 17 at the bottom of its conical surface. These inclined air holes 17 are staggered around the circumference of the turntable 11. An annular air chamber is located inside the turntable, extending from the hopper through a pipe and connected to a compressed air source. In some embodiments, after the equipment is started, the compressed air source supplies air to the annular air chamber. The airflow is ejected through the circumferentially distributed inclined air holes at a tangential angle of 15°-30°, forming a rotating airflow layer on the conical surface. This layer peels off the adhered wet ore and reduces the frictional resistance between the material and the conical surface. After operation, the air source is shut off, and the air holes automatically close due to the loss of internal air pressure, preventing residual ore from backflowing and clogging the air passages. This design allows the airflow and the centrifugal force of the turntable to work synergistically during the transport of water-containing titanium concentrate, completely breaking down agglomerated ore and reducing the amount of material adhering to the conical surface by more than 80%. Furthermore, the self-closing characteristic of the air holes during shutdown prevents secondary blockage caused by slurry solidification.
[0034] Furthermore, the connection position of the helical blade end can be at any height of the conical turntable. Preferably, the top of the helical blade extends to the top of the hopper at 0 to 1 / 2 of the height of the conical turntable. The helical blade end is connected to the lower middle area of the conical turntable, so that its working section covers the core shear zone of material accumulation, ensuring that the material near the bottom is also fully agitated and preventing material accumulation. This design enhances the flexible agitation of wet ore through the free-suspension section in the upper middle part of the blade, avoiding the risk of breakage caused by stress concentration at the blade root.
[0035] Furthermore, a humidity sensor is installed at the discharge port to display the humidity of the material in real time. The sensor can monitor the humidity of the material in real time. When the technicians think that adjustment is needed, the speed of the conical turntable is controlled by the drive motor to enhance or weaken the shearing and crushing ability of the spiral blades on the wet ore, and the centrifugal dispersion effect is adjusted simultaneously to effectively prevent agglomeration and blockage.
[0036] Furthermore, the surface of the helical blades is provided with a wear-resistant ceramic liner. The ceramic liner has a smooth and hydrophobic surface, which significantly reduces the amount of titanium concentrate adhering (by more than 70%), while resisting corrosion from acidic components in wet ore.
[0037] Furthermore, such as Figure 2 As shown, a vibration mechanism 18 is arranged circumferentially at the bottom of the conical turntable to assist in material feeding. The vibration mechanism includes an embedded piezoelectric ceramic vibrating plate and a frequency converter. The piezoelectric ceramic vibrating plate superimposes a high-frequency micro-vibration of 50-200Hz onto the rotating motion of the turntable. The vibration direction forms a phase difference with the centrifugal force, generating shear waves to break the capillary water adhesion between wet ore particles.
[0038] The operating method of this device is as follows: When the wet ore anti-clogging conical feeding device is started, the material enters from the top of the hopper. The drive motor drives the conical turntable to rotate via a bevel gear set. The spiral blades, rotating with the turntable, apply shearing and centrifugal forces to the material, creating initial agitation. The material falls to the bottom of the hopper due to gravity and flows out from the outlet. Furthermore, when material blockage is detected, compressed air is ejected through inclined vents at the bottom of the conical surface to form a tangential airflow layer. Combined with the high-frequency micro-vibration of the piezoelectric ceramic vibrating plate, this layer helps to peel off adhering material. After shutdown, the vents automatically close. A humidity sensor at the outlet monitors the moisture content in real time, and the linkage controller dynamically adjusts the turntable speed and airflow intensity to match different humidity conditions.
[0039] This device utilizes a conical turntable, spiral blades, airflow scouring, and vibration mechanism to form a multi-dimensional arch-breaking system, completely disintegrating the agglomeration and adhesion of highly moist and viscous ores (such as titanium concentrate), reducing the blockage rate by over 90%. Through a humidity sensor and closed-loop control system, dynamic linkage of speed, air pressure, and vibration frequency is achieved, with adaptive adjustment ensuring continuous and stable feeding. This effectively reduces drying line downtime, increases equipment operating rate, and improves ore drying output, thereby creating significant economic and social benefits.
[0040] The above are exemplary embodiments disclosed in this utility model. However, it should be noted that various changes and modifications can be made without departing from the scope of the embodiments of this utility model as defined by the claims. The functions, steps, and / or actions of the methods according to the disclosed embodiments described herein do not need to be performed in any particular order. Furthermore, although the elements disclosed in the embodiments of this utility model may be described or claimed individually, they may be understood as multiple unless explicitly limited to a singular number.
[0041] It should be understood that, as used herein, the singular form “a” is intended to include the plural form as well, unless the context clearly supports an exception. It should also be understood that, as used herein, “and / or” refers to any and all possible combinations of one or more of the associated listed items.
[0042] The embodiment numbers disclosed in the above-described embodiments of the present utility model are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.
[0043] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the framework of the present invention, technical features of the above embodiments or different embodiments can also be combined, and many other variations of different aspects of the present invention exist, which are not provided in the details for the sake of brevity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A wet ore anti-blocking conical surface feeding device, comprising a bin and a driving motor, characterized in that, The silo is provided with a discharge port near the bottom of the side, a conical rotary disc is arranged in the silo, the rotary shaft of the driving motor is connected with the bottom of the conical rotary disc through the bottom of the silo, at least one spiral blade is coaxially arranged with the conical rotary disc, and the end of the spiral blade is detachably connected with the conical rotary disc.
2. The wet ore anti-jamming conical surface feeding device according to claim 1, characterized in that, The silo is cylindrical, the diameter of the bottom of the conical rotary disc is equal to the diameter of the silo, and a flexible sealing edge is arranged between the edge of the bottom of the conical rotary disc and the inner wall of the silo.
3. The wet ore anti-jamming conical surface feeding device according to claim 1, characterized in that, The taper angle of the conical rotary disc is 120°-140°.
4. The wet ore anti-jamming conical surface feeding device according to claim 3, characterized in that, The taper angle of the conical rotary disc gradually decreases along the axial direction.
5. The wet ore anti-jamming conical surface feeding device according to claim 1, characterized in that, The driving motor is a reduction motor, and the output shaft of the reduction motor drives the conical rotary disc to rotate through a bevel gear set.
6. The wet ore anti-jamming conical surface feeding device according to claim 1, characterized in that, A plurality of inclined air holes are arranged at the bottom of the conical surface of the conical rotary disc, and an annular air cavity is arranged in the conical rotary disc, which extends out of the silo through a pipeline to connect a compressed air source.
7. The wet ore anti-jamming conical surface feeding device according to claim 1, characterized in that, The connecting position of the end of the spiral blade is at 0-1 / 2 of the height of the conical rotary disc.
8. The wet ore anti-jamming conical surface feeding device according to claim 1, characterized in that, A humidity sensor is arranged at the discharge port to display the humidity of the material in real time.
9. The wet ore anti-jamming conical surface feeding device according to claim 1, characterized in that, A wear-resistant ceramic lining layer is arranged on the surface of the spiral blade.
10. The wet ore anti-jamming conical surface feeding device according to claim 1, characterized in that, A vibration mechanism is arranged at the bottom of the conical rotary disc in the circumferential direction to assist in discharging, and the vibration mechanism comprises an embedded piezoelectric ceramic vibration piece and a variable frequency controller.