Disc feeder with shearing function

By setting up upper and lower shearing components in the disc feeder and rotating them in opposite directions, the material is sheared and dispersed, solving the problem of sodium bicarbonate caking and clogging, and improving feeding efficiency and equipment stability.

CN224293420UActive Publication Date: 2026-05-29HUNAN PUXIANG ENVIRONMENTAL PROTECTION ENERGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN PUXIANG ENVIRONMENTAL PROTECTION ENERGY CO LTD
Filing Date
2025-06-27
Publication Date
2026-05-29

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Abstract

The utility model discloses a disc feeding device with shearing function, including the barrel, and by the upper shearing subassembly, lower shearing subassembly and cloth material disc of interval setting in the barrel from top to bottom, the upper shearing subassembly and lower shearing subassembly are by double output shaft drive mechanism drive, and the rotating direction of upper shearing subassembly and lower shearing subassembly is opposite, to realize material shearing, the cloth material disc is connected with double output shaft drive mechanism, and with lower shearing subassembly keep synchronous rotation, the upper portion of barrel is equipped with the feed port, the feed port is located the top of upper shearing subassembly, the lower portion of barrel is equipped with a plurality of discharge port, and the discharge port is located the edge of cloth material disc, the utility model discloses have compact structure, convenient operation, high safety and reliability higher characteristics, the material in the barrel is cut after breaking, and then is exported by cloth material disc, has improved sodium bicarbonate feeding efficiency significantly.
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Description

Technical Field

[0001] This utility model relates to the field of disc feeding technology, specifically to a disc feeding device with shearing function. Background Technology

[0002] Currently, waste-to-energy plants widely use dry powder systems, specifically sodium bicarbonate, for flue gas deacidification due to its high efficiency, simple technology, and mature processes. However, a problem arises: sodium bicarbonate caking into lumps that fall into the disc feeder. Caking of sodium bicarbonate is mainly related to its physicochemical properties and environmental factors. It is slightly soluble in water and has strong hygroscopic properties, easily caking when ambient humidity is high. Under specific temperature and humidity conditions, sodium bicarbonate may decompose, further exacerbating caking. The caking of sodium bicarbonate falling into the disc feeder can easily cause blockages, requiring dedicated personnel for cleaning, which consumes significant manpower. Furthermore, during blockages, environmental incidents such as exceeding acidity limits may occur. Utility Model Content

[0003] The technical problem to be solved by this utility model is to address the shortcomings of existing disc feeders that are easily blocked by caking sodium bicarbonate, and to provide a disc feeder with shearing function that is compact in structure, easy to operate and highly stable.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A disc feeder with shearing function includes a cylinder and an upper shearing assembly, a lower shearing assembly, and a feeding disc arranged at intervals from top to bottom within the cylinder. The upper and lower shearing assemblies are driven by a dual-output shaft drive mechanism, and the upper and lower shearing assemblies rotate in opposite directions to achieve material shearing. The feeding disc is connected to the dual-output shaft drive mechanism and rotates synchronously with the lower shearing assembly. The upper part of the cylinder is provided with a feed inlet located above the upper shearing assembly, and the lower part of the cylinder is provided with multiple discharge outlets located at the edge of the feeding disc.

[0006] As a further improvement of this utility model, the dual output shaft drive mechanism includes a coaxial dual output shaft, a drive element and a gearbox. One end of the coaxial dual output shaft passes through the bottom of the cylinder and the cloth disc in sequence and is connected to the upper shearing assembly and the lower shearing assembly respectively. The other end of the coaxial dual output shaft is connected to the output end of the drive element through the gearbox.

[0007] As a further improvement of this utility model, the coaxial dual output shaft includes a coaxially nested outer shaft and an inner shaft, the outer shaft is connected to the lower shearing assembly and the fabric tray, and the inner shaft is connected to the upper shearing assembly.

[0008] As a further improvement of this utility model, the gearbox includes an outer shaft gear, an inner shaft gear, and a drive gear. The input end of the drive gear is connected to the output end of the drive element, and the output end of the drive gear is connected to the outer shaft gear and the inner shaft gear respectively. The rotation directions of the outer shaft gear and the inner shaft gear are opposite. The outer shaft gear is connected to the outer shaft, and the inner shaft gear is connected to the inner shaft.

[0009] As a further improvement of this utility model, the upper shearing assembly includes an upper reinforcing ring, an upper connecting ring, and multiple upper shearing blades. One end of the upper shearing blade is connected to the upper connecting ring, the upper connecting ring is nested on the coaxial dual output shaft, and the other end of the upper shearing blade is connected to the upper reinforcing ring.

[0010] As a further improvement of this utility model, the lower shearing assembly includes a lower reinforcing ring, a lower connecting ring, and multiple lower shearing blades. One end of the lower shearing blade is connected to the lower connecting ring, the lower connecting ring is nested on the coaxial dual output shaft, and the other end of the lower shearing blade is connected to the lower reinforcing ring.

[0011] As a further improvement of this utility model, the upper shearing blade and the lower shearing blade have the same structure, both being a blade structure with a gradually varying thickness, thicker in the middle and thinner at both ends.

[0012] As a further improvement of this utility model, the top of the cylinder is provided with a top cover, and the feed inlet is located in the middle of the top cover.

[0013] As a further improvement of this utility model, the driving element is a forward and reverse rotating motor.

[0014] As a further improvement of this utility model, the number of upper shearing blades is three, and the circumferential angle between adjacent upper shearing blades is 120°.

[0015] As a further improvement of this utility model, the number of lower shearing blades is three, and the circumferential included angle between adjacent lower shearing blades is 120°.

[0016] Compared with the prior art, the advantages of this utility model are:

[0017] 1. The disc feeding device with shearing function of this utility model has an upper shearing component, a lower shearing component, and a feeding disc arranged at intervals from top to bottom in the cylinder. The upper and lower shearing components are driven by a dual output shaft drive mechanism, so that the upper and lower shearing components rotate in opposite directions. This achieves shearing and crushing of the condensed material in the cylinder, while ensuring that the material is fully stirred and dispersed and falls onto the feeding disc. This ensures the accuracy and reliability of sodium bicarbonate dry powder feeding and significantly improves the feeding efficiency of sodium bicarbonate.

[0018] 2. The disc feeding device with shearing function of this utility model has higher shearing efficiency through the relative rotation of the upper shearing component and the lower shearing component. The simultaneous shearing of the two moving blades can complete the shearing operation faster and improve work efficiency; the force is more uniform, the double moving blade design makes the force more uniform during shearing, reduces material deformation, and reduces problems caused by uneven force; the fabric is more uniform, the double moving blade design can effectively avoid uneven fabric due to material accumulation due to multiple shearing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structural principle of the disc feeding device with shearing function in a specific embodiment of this utility model;

[0020] Figure 2 This is a top view schematic diagram of the shearing function disc feeding device in a specific embodiment of the present invention.

[0021] Figure 3 This is a side view schematic diagram of the upper shearing component in a specific embodiment of the present invention.

[0022] Figure 4 This is a side view schematic diagram of the gearbox structure in a specific embodiment of the present utility model;

[0023] Legend: 1. Cylinder; 11. Top cover; 2. Coaxial dual output shaft; 21. Outer shaft; 22. Inner shaft; 3. Upper shearing assembly; 31. Upper reinforcing ring; 32. Upper shearing blade; 33. Upper connecting ring; 4. Lower shearing assembly; 41. Lower reinforcing ring; 42. Lower shearing blade; 43. Lower connecting ring; 5. Fabric tray; 6. Feed inlet; 7. Discharge outlet; 8. Drive element; 9. Gearbox; 91. Outer shaft gear; 92. Inner shaft gear; 93. Drive gear. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific preferred embodiments, but this does not limit the scope of protection of the present invention.

[0025] In the description of this utility model, it should be understood that the terms "side", "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more blocks of that feature. In the description of this utility model, "multiple blocks" means two or more, unless otherwise explicitly specified.

[0027] Example

[0028] like Figure 1 and Figure 2 As shown, the disc feeding device with shearing function of this utility model includes a cylinder 1, and an upper shearing assembly 3, a lower shearing assembly 4, and a feeding disc 5 arranged from top to bottom within the cylinder 1. The upper shearing assembly 3 and the lower shearing assembly 4 are driven by a dual-output shaft drive mechanism, and the rotation directions of the upper shearing assembly 3 and the lower shearing assembly 4 are opposite to achieve material shearing. The feeding disc 5 is connected to the dual-output shaft drive mechanism and rotates synchronously with the lower shearing assembly 4. The feeding disc 5 discharges the sheared material while rotating. The upper part of the cylinder 1 is provided with a feed inlet 6, which is located above the upper shearing assembly 3. The lower part of the cylinder 1 is provided with multiple discharge outlets 7, which are located at the edge of the feeding disc 5, so that sodium bicarbonate dry powder can enter the cylinder 1, be sheared and crushed, and then transported to the downstream process.

[0029] In this embodiment, an upper shearing assembly 3, a lower shearing assembly 4, and a feeding disc 5 are arranged at intervals from top to bottom inside the cylinder 1. The upper shearing assembly 3 and the lower shearing assembly 4 are driven by a dual-output shaft drive mechanism, so that the upper shearing assembly 3 and the lower shearing assembly 4 rotate in opposite directions. This achieves shearing and crushing of the clump of material inside the cylinder, while ensuring that the material is fully stirred and dispersed before falling onto the feeding disc 5. This ensures the accuracy and reliability of sodium bicarbonate dry powder feeding and significantly improves the feeding efficiency of sodium bicarbonate.

[0030] like Figure 1 As shown, the dual-output shaft drive mechanism includes a coaxial dual-output shaft 2, a drive element 8, and a gearbox 9. One end of the coaxial dual-output shaft 2 passes through the bottom of the cylinder 1 and is connected to the fabric disc 5, the lower shearing assembly 4, and the upper shearing assembly 3 in sequence. The other end of the coaxial dual-output shaft 2 is connected to the output end of the drive element 8 through the gearbox 9.

[0031] Furthermore, the coaxial dual output shaft 2 includes a coaxially nested outer shaft 21 and an inner shaft 22. The top of the outer shaft 21 is connected to the lower shearing assembly 4 and the material distribution plate 5, with the material distribution plate 5 located below the lower shearing assembly 4. The top of the inner shaft 22 is connected to the upper shearing assembly 3. By adjusting the height difference between the top of the outer shaft 21 and the top of the inner shaft 22, the distance between the upper shearing assembly 3 and the lower shearing assembly 4 can be adjusted. By selecting gearboxes 9 with different gear ratios, the rotational speed difference between the upper shearing assembly 3 and the lower shearing assembly 4 can be adjusted. Simultaneously, the angle difference between the upper shearing assembly 3 and the lower shearing assembly 4 can also be adjusted, thereby controlling the shearing effect and dispersion degree of the material to adapt to different production process requirements.

[0032] like Figure 4 As shown, the gearbox 9 includes an outer shaft gear 91, an inner shaft gear 92, and a drive gear 93. The input end of the drive gear 93 is connected to the output end of the drive element 8 via a shaft reduced by a reducer. The output end of the drive gear 93 is connected to both the outer shaft gear 91 and the inner shaft gear 92. The outer shaft gear 91 and the inner shaft gear 92 rotate in opposite directions. The outer shaft gear 91 is connected to the outer shaft 21, and the inner shaft gear 92 is connected to the inner shaft 22. When the drive element 8 drives the drive gear 93 to rotate, both sides of the drive gear 93 mesh with the outer shaft gear 91 and the inner shaft gear 92, respectively. The outer shaft gear 91 drives the outer shaft 21 to rotate, thereby rotating the upper shearing assembly 3. The inner shaft gear 92 drives the inner shaft 22 to rotate, thereby rotating the lower shearing assembly 4.

[0033] In this embodiment, the drive element 8 is a reversible motor. When the drive element 8 rotates in the forward direction, the upper shear assembly 3 and the lower shear assembly 4 will experience some wear after running in one direction for a period of time. Adjusting the drive element 8 to rotate in the reverse direction can drive the shear assembly 3 and the lower shear assembly 4 to run in the opposite direction, thereby reducing the need for parts replacement and lowering maintenance costs.

[0034] like Figure 2 As shown, the upper shear assembly 3 includes an upper reinforcing ring 31, an upper connecting ring 33, and three upper shear blades 32. One end of each upper shear blade 32 is connected to the upper connecting ring 33, which is nested on the coaxial dual output shaft 2. The other end of each upper shear blade 32 is connected to the upper reinforcing ring 31. The circumferential angle between adjacent upper shear blades 32 is 120°. By adopting a reinforcing ring blade mounting structure, the force distribution of the upper shear blades 32 is changed, thereby improving the overall strength and rigidity of the upper shear assembly 3.

[0035] like Figure 2As shown, the lower shear assembly 4 includes a lower reinforcing ring 41, a lower connecting ring 43, and three lower shear blades 42. One end of each lower shear blade 42 is connected to the lower connecting ring 43, which is nested on the coaxial dual output shaft 2. The other end of each lower shear blade 42 is connected to the lower reinforcing ring 41. The circumferential angle between adjacent lower shear blades 42 is 120°. By adopting a reinforcing ring blade mounting structure, the force distribution of the lower shear blades 42 is changed, improving the overall strength and rigidity of the lower shear assembly 4. It can be understood that by adjusting the mounting angles of the upper connecting ring 33 and the lower connecting ring 43, the angle difference between the upper shear assembly 3 and the lower shear assembly 4 can be adjusted, thereby controlling the material shearing and crushing effect.

[0036] like Figure 3 As shown, the upper shearing blade 32 and the lower shearing blade 42 have the same structure. Both are blades with a gradually changing thickness, thicker in the middle and thinner at both ends, which reduces the material cutting resistance while ensuring a certain structural strength.

[0037] like Figure 1 As shown, the top of the cylinder 1 is provided with a top cover 11, and the feed inlet 6 is located in the middle of the top cover 11 to prevent external debris from falling into the cylinder 1.

[0038] In this embodiment, the working process of the disc feeder is as follows:

[0039] Sodium bicarbonate material falls into the cylinder 1 through the feed inlet 6 under gravity. The upper shear assembly 3 and lower shear assembly 4 work together to shear the sodium bicarbonate, breaking larger particles or clumps into smaller ones. This process also ensures the material is thoroughly mixed and dispersed before falling onto the distribution disc 5, where it moves towards the discharge outlet 7, achieving uniform feeding. The sheared and dispersed material is then discharged from the outlet 7 and enters subsequent conveying or processing equipment.

[0040] The relative rotation between the upper shearing component 3 and the lower shearing component 4 results in higher shearing efficiency. The simultaneous shearing by the two moving blades allows for faster completion of the shearing operation, improving work efficiency. The force is more evenly distributed, as the dual-moving blade design ensures more uniform force distribution during shearing, reducing material deformation and minimizing problems caused by uneven force distribution. The fabric is more uniform, as the dual-moving blade design, through multiple shearing operations, effectively prevents uneven fabric distribution caused by material accumulation.

[0041] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A disc feeder with shearing function, characterized in that, The device includes a cylinder (1) and an upper shearing assembly (3), a lower shearing assembly (4) and a material distribution plate (5) arranged from top to bottom within the cylinder (1). The upper shearing assembly (3) and the lower shearing assembly (4) are driven by a dual output shaft drive mechanism, and the upper shearing assembly (3) and the lower shearing assembly (4) rotate in opposite directions to achieve material shearing. The material distribution plate (5) is connected to the dual output shaft drive mechanism and rotates synchronously with the lower shearing assembly (4). The upper part of the cylinder (1) is provided with a feed inlet (6), which is located above the upper shearing assembly (3). The lower part of the cylinder (1) is provided with multiple discharge ports (7), which are located at the edge of the material distribution plate (5).

2. The disc feeder with shearing function according to claim 1, characterized in that, The dual-output shaft drive mechanism includes a coaxial dual-output shaft (2), a drive element (8), and a gearbox (9). One end of the coaxial dual-output shaft (2) passes through the bottom of the cylinder (1) and the fabric disc (5) in sequence and is connected to the upper shearing assembly (3) and the lower shearing assembly (4) respectively. The other end of the coaxial dual-output shaft (2) is connected to the output end of the drive element (8) through the gearbox (9).

3. The disc feeder with shearing function according to claim 2, characterized in that, The coaxial dual output shaft (2) includes a coaxially nested outer shaft (21) and an inner shaft (22). The outer shaft (21) is connected to the lower shearing assembly (4) and the fabric tray (5), and the inner shaft (22) is connected to the upper shearing assembly (3).

4. The disc feeder with shearing function according to claim 3, characterized in that, The gearbox (9) includes an outer shaft gear (91), an inner shaft gear (92), and a drive gear (93). The input end of the drive gear (93) is connected to the output end of the drive element (8). The output end of the drive gear (93) is connected to the outer shaft gear (91) and the inner shaft gear (92) respectively. The rotation directions of the outer shaft gear (91) and the inner shaft gear (92) are opposite. The outer shaft gear (91) is connected to the outer shaft (21), and the inner shaft gear (92) is connected to the inner shaft (22).

5. The disc feeder with shearing function according to claim 2, characterized in that, The upper shearing assembly (3) includes an upper reinforcing ring (31), an upper connecting ring (33), and multiple upper shearing blades (32). One end of the upper shearing blade (32) is connected to the upper connecting ring (33), the upper connecting ring (33) is nested on the coaxial dual output shaft (2), and the other end of the upper shearing blade (32) is connected to the upper reinforcing ring (31).

6. The disc feeder with shearing function according to claim 5, characterized in that, The lower shearing assembly (4) includes a lower reinforcing ring (41), a lower connecting ring (43), and multiple lower shearing blades (42). One end of the lower shearing blade (42) is connected to the lower connecting ring (43), which is nested on the coaxial dual output shaft (2). The other end of the lower shearing blade (42) is connected to the lower reinforcing ring (41).

7. The disc feeder with shearing function according to claim 6, characterized in that, The upper shearing blade (32) and the lower shearing blade (42) have the same structure, both being gradually thickened blades with a thicker middle and thinner ends.

8. The disc feeder with shearing function according to any one of claims 1 to 7, characterized in that, The top of the cylinder (1) is provided with a top cover (11), and the feed port (6) is located in the middle of the top cover (11).

9. The disc feeder with shearing function according to any one of claims 2 to 7, characterized in that, The driving element (8) is a forward and reverse rotating motor.

10. The disc feeder with shearing function according to claim 6, characterized in that, The number of upper shearing blades (32) and lower shearing blades (42) are both three. The circumferential angle between adjacent upper shearing blades (32) is 120°, and the circumferential angle between adjacent lower shearing blades (42) is 120°.