A dust suppression hopper

Abstract

The present invention discloses a dust suppression hopper, which comprises a bracket and a hopper body. The hopper body includes a hopper outer shell, and the hopper outer shell includes a cylindrical hopper and a conical hopper. An adjusting component and a dust suppression component are arranged inside the hopper outer shell. The adjusting component includes an adjusting rod, a connecting frame, an adjusting plate and a connecting rod. The connecting frame is arranged at the top of the cylindrical hopper, the adjusting rod is movably arranged in the middle of the connecting frame, the adjusting plate is connected to the upper part of the adjusting rod, one end of the connecting rod is connected to the adjusting plate, and the other end is connected to the connecting frame. The dust suppression component includes an upper cone, an intermediate plate and a lower cone. The upper cone is fixedly arranged above the intermediate plate, the lower cone is fixedly arranged below the intermediate plate, the intermediate plate is fixedly connected to the bottom of the adjusting rod, the side cross-section of the lower cone is in an inverted trapezoid shape, and the side surface of the lower cone is parallel to the inner wall of the conical hopper. The beneficial effects of the present invention are as follows: the adjusting component can control the discharging speed according to the feeding flow rate of the material, and the dust suppression component avoids the dust generation during the falling process and reduces the dust generated when the material falls.

Description

Technical Field

[0001] The present invention relates to the technical field of material handling equipment, and particularly relates to a dust suppression hopper. Background Art

[0002] In the operations of bulk material handling at ports, by trucks, and by trains, a hopper is often used as a medium for centralized post-treatment of materials and is transported to the destination by means of transportation. During transfer, the material moves downward from the feeding port at a high speed. During the falling process, collisions between the material and the loading container, and between the materials will generate dust, causing dust pollution and seriously threatening the physical health and operation safety of the staff.

[0003] For the existing dust suppression hoppers, most of them achieve the functions of dust prevention and suppression in the form of externally added dust suppression devices. This structure increases the extra volume for the hopper and generally has an average dust suppression effect. In addition, the existing dust suppression hoppers do not have the function of adjusting the material discharge rate, which affects the use effect. Summary of the Invention

[0004] The purpose of the present invention is to improve the above problems and propose a dust suppression hopper.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A dust suppression hopper includes a bracket and a hopper body, and the hopper body is installed on the bracket; the hopper body includes a hopper housing, the hopper housing has a funnel-shaped structure, the hopper housing includes a cylindrical hopper and a conical hopper, the top of the cylindrical hopper is provided with a feeding port, the bottom of the conical hopper is provided with a discharging port, an adjusting component and a dust suppression component are arranged inside the hopper housing, the adjusting component is arranged in the cylindrical hopper, the dust suppression component is arranged in the conical hopper, the adjusting component includes an adjusting rod, a connecting frame, an adjusting plate and a connecting rod, the connecting frame is fixedly arranged at the top inside the cylindrical hopper, the adjusting rod is arranged in the middle of the connecting frame and is movably connected to the connecting frame, there are two adjusting plates in total, the adjusting plates are hinged to the upper part of the adjusting rod, there are two connecting rods in total, one end of a single connecting rod is connected to the end of the adjusting plate far from the adjusting rod, and the other end is connected to the connecting frame; the dust suppression component includes an upper cone, an intermediate plate and a lower cone, the upper cone is fixedly arranged above the intermediate plate, the lower cone is fixedly arranged below the intermediate plate, the intermediate plate is fixedly connected to the bottom of the adjusting rod, the upper part of the upper cone is provided with a through hole for the adjusting rod to pass through, the side cross-section of the lower cone is trapezoidal in reverse, and the side surface of the lower cone is parallel to the inner wall of the lower part of the conical hopper.

[0007] Preferably, the diameter of the discharging port matches the diameter of the lower end surface of the lower cone.

[0008] Preferably, a limiting block is provided at the upper end of the adjusting rod, which prevents the adjusting rod from falling.

[0009] Preferably, the ratio of the cross-sectional area of the cylindrical hopper to the cross-sectional area of the bottom of the conical hopper is 5:1.

[0010] Preferably, the height H of the conical hopper satisfies H≥0.5*(L - D)*tanα, where: L is the width of the cylindrical hopper, D is the diameter of the discharge port, and α is the angle of repose of the material.

[0011] Preferably, a first hopper cover is provided above the feed inlet, and a second hopper cover is provided at the bottom of the discharge outlet.

[0012] Preferably, the thickness of the cylindrical hopper and the conical hopper is 2 - 3 mm.

[0013] Preferably, wear-resistant plates are lined inside the cylindrical hopper and the conical hopper, and the setting of the wear-resistant plates improves the service life of the cylindrical hopper and the conical hopper.

[0014] Preferably, fixing blocks are fixedly provided outside the cylindrical hopper, and the fixing blocks are embedded in the upper part of the bracket.

[0015] Preferably, moving pulleys are provided at the bottom of the bracket to facilitate the overall movement of the device.

[0016] In summary, the beneficial technical effects of the present invention are as follows:

[0017] 1. The adjusting assembly can adjust the gap between the lower cone and the inner wall of the conical hopper according to the feeding flow rate of the material, thereby controlling the discharging speed. Specifically, the material enters the cylindrical hopper through the feed inlet and falls on the adjusting plate. The adjusting plate receives an impact force from the material and obtains a downward force. The connecting rod is connected to the adjusting plate and the connecting frame respectively, preventing the adjusting plate from moving downward, so that the adjusting plate closes inwards. The inward closing of the adjusting plate drives the adjusting rod to slide upwards, and the upward sliding of the adjusting rod drives the middle part to move upwards, thereby changing the gap between the lower cone and the inner wall of the conical hopper and controlling the discharging speed.

[0018] 2. After the adjusting plate contracts, the material will fall on the upper cone. The upper cone diverts the material, playing a role of natural stirring, discharging the air in the material, ensuring the uniformity of the material quality, and preventing material classification. The design of the lower cone enables the material to finally form a cohesive and dense material flow column at the discharge outlet, and dust and the like are evenly entrained therein. Since most of the air in the material is discharged, the material flow forms a dense material flow column, the gap between particles is greatly reduced, the impact between particles is greatly reduced, and at the same time, the influence of the air shear force during the falling process is avoided, thus preventing dust from flying. The cohesive material flow column falls onto the stockpile and diffuses gently in the form of radar waves, greatly reducing dust.

[0019] 3. After the material enters the cylindrical hopper, the regulating plate plays a preliminary shunting role.

[0020] 4. The setting of the moving pulley facilitates the movement of the overall device.

[0021] 5. After the hopper body is reduced, it is used in combination with the chute pipe and can be used in the fields of loading bulk goods onto trucks and trains. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is the front view of a dust suppression hopper proposed by the present invention;

[0024] Figure 2 It is the schematic diagram of the internal structure of the hopper shell of a dust suppression hopper proposed by the present invention.

[0025] Reference numerals: 1. Cylindrical hopper; 2. Conical hopper; 3. Bracket; 4. Adjusting rod; 5. Connecting frame; 6. Regulating plate; 7. Connecting rod; 8. Upper cone; 9. Intermediate plate; 10. Lower cone; 11. Limit block; 12. First hopper cover; 13. Second hopper cover; 14. Moving pulley; 15. Fixed block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the drawings. Obviously, the described embodiments are some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Embodiment

[0030] As Figure 1 、 Figure 2 shown, a dust suppression hopper includes a bracket 3 and a hopper body.

[0031] Referring to Figure 1 , the hopper body is installed on the bracket 3, and moving pulleys 14 are arranged at the bottom of the bracket 3 to facilitate the overall movement of the device.

[0032] Referring to Figure 2 , the hopper body includes a hopper shell, and the hopper shell has a funnel-shaped structure. The hopper shell includes a cylindrical hopper 1 and a conical hopper 2. A feed inlet is arranged at the top of the cylindrical hopper 1, and a discharge outlet is arranged at the bottom of the conical hopper 2. A first hopper cover 12 is arranged above the feed inlet, and a second hopper cover 13 is arranged at the bottom of the discharge outlet. The thickness of the cylindrical hopper 1 and the conical hopper 2 is 2 - 3 mm. The ratio of the cross-sectional area of the cylindrical hopper 1 to the cross-sectional area of the bottom of the conical hopper 2 is 5:1. The height H of the conical hopper 2 ≥ 0.5*(L - D)*tanα, where: L is the width of the cylindrical hopper 1, D is the diameter of the discharge outlet, and α is the angle of repose of the material. Wear-resistant plates are lined inside the cylindrical hopper 1 and the conical hopper 2, and the setting of the wear-resistant plates improves the service life of the cylindrical hopper 1 and the conical hopper 2. A fixing block 15 is fixedly arranged outside the cylindrical hopper 1, and the fixing block 15 is embedded in the upper part of the bracket 3.

[0033] An adjusting component and a dust suppression component are arranged inside the hopper shell. The adjusting component is arranged in the cylindrical hopper 1, and the dust suppression component is arranged in the conical hopper 2. The adjusting component includes an adjusting rod 4, a connecting frame 5, an adjusting plate 6, and a connecting rod 7. The connecting frame 5 is fixedly arranged at the top inside the cylindrical hopper 1. The adjusting rod 4 is arranged in the middle of the connecting frame 5 and is movably connected to the connecting frame 5. A limiting block 11 is arranged at the upper end of the adjusting rod 4, and the limiting block 11 prevents the adjusting rod 4 from falling. There are two adjusting plates 6 in total. The adjusting plates 6 are hingedly connected to the upper part of the adjusting rod 4. There are two connecting rods 7 in total. One end of a single connecting rod 7 is connected to the end of the adjusting plate 6 far from the adjusting rod 4, and the other end is connected to the connecting frame 5.

[0034] The dust suppression assembly includes an upper vertebral body 8, an intermediate plate 9 and a lower vertebral body 10. The upper vertebral body 8 is fixedly arranged above the intermediate plate 9, and the lower vertebral body 10 is fixedly arranged below the intermediate plate 9. The intermediate plate 9 is fixedly connected to the bottom of the adjusting rod 4. A through hole is arranged on the upper part of the upper vertebral body 8 for the adjusting rod 4 to pass through. The side section of the lower vertebral body 10 is an inverted trapezoid, and the side surface of the lower vertebral body 10 is parallel to the inner wall of the lower part of the conical bucket 2.

[0035] The diameter of the discharge port matches the diameter of the lower end surface of the lower cone 10 .

[0036] The working principle and beneficial effects of this embodiment are as follows:

[0037] Before working, the pulley 14 is moved to a desired position to start working.

[0038] During operation, the material enters the hopper body through the feed port, and then falls onto the adjustment plate 6 after entering the cylindrical hopper 1. The adjustment plate 6 plays a preliminary diversion role after the material enters the cylindrical hopper 1. The adjustment plate 6 receives the impact of the material and obtains a downward force. The connecting rod 7 is respectively connected to the adjustment plate 6 and the connecting frame 5 to prevent the adjustment plate 6 from moving downward, so that the adjustment plate 6 is retracted toward the middle. The retraction of the adjustment plate 6 drives the adjustment rod 4 to slide upward, and the upward sliding of the adjustment rod 4 drives the middle to move upward, so that the gap between the lower cone 10 and the inner wall of the conical hopper 2 changes.

[0039] After the adjustment plate 6 is retracted, the material will fall on the upper vertebral body 8, which makes the material flow diverted, plays a role of natural stirring, discharges the air in the material, and ensures the uniformity of the material quality and prevents the material from being graded. The design of the lower vertebral body 10 allows the material to finally be discharged from the hopper body at the discharge port, and the discharged material forms a dense flow column, in which dust and the like are evenly entrained. Since most of the air in the material is discharged, the material flow forms a dense flow column, the gap between the particles is greatly reduced, the collision between the particles is greatly reduced, and the dust caused by the shearing effect of the air during the falling process is also avoided. The condensed flow column falls to the material pile and diffuses gently in the form of radar waves, and the dust is greatly reduced. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit it; although the present invention is described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that it is still possible to modify the technical solutions recorded in the aforementioned embodiments, or to replace some or all of the technical features therein by equivalent; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dust suppression hopper, characterized in that: it includes a bracket (3) and a hopper body, and the hopper body is installed on the bracket (3); the hopper body includes a hopper shell, the hopper shell is in a funnel-shaped structure, the hopper shell includes a cylindrical hopper (1) and a conical hopper (2), a feed inlet is arranged at the top of the cylindrical hopper (1), a discharge outlet is arranged at the bottom of the conical hopper (2), an adjusting component and a dust suppression component are arranged inside the hopper shell, the adjusting component is arranged in the cylindrical hopper (1), the dust suppression component is arranged in the conical hopper (2), the adjusting component includes an adjusting rod (4), a connecting frame (5), an adjusting plate (6) and a connecting rod (7), the connecting frame (5) is fixedly arranged at the top inside the cylindrical hopper (1), the adjusting rod (4) is arranged in the middle of the connecting frame (5) and is movably connected with the connecting frame (5), there are two adjusting plates (6) in total, the adjusting plates (6) are hinged to the upper part of the adjusting rod (4), there are two connecting rods (7) in total, one end of a single connecting rod (7) is connected to the end of the adjusting plate (6) away from the adjusting rod (4), and the other end is connected to the connecting frame (5); the dust suppression component includes an upper cone (8), an intermediate plate (9) and a lower cone (10), the upper cone (8) is fixedly arranged above the intermediate plate (9), the lower cone (10) is fixedly arranged below the intermediate plate (9), the intermediate plate (9) is fixedly connected to the bottom of the adjusting rod (4), a through hole for the adjusting rod (4) to pass through is arranged at the upper part of the upper cone (8), the side cross-section of the lower cone (10) is in an inverted trapezoid shape, and the side surface of the lower cone (10) is parallel to the inner wall of the lower part of the conical hopper (2); a limit block (11) is arranged at the upper end of the adjusting rod (4); the ratio of the cross-sectional area of the cylindrical hopper (1) to the cross-sectional area of the bottom of the conical hopper (2) is 5:

1.

2. A dust suppression hopper according to claim 1, characterized in that: the diameter of the discharge outlet matches the diameter of the lower end surface of the lower cone (10).

3. A dust suppression hopper according to claim 1, characterized in that: the height H of the conical hopper (2) ≥ 0.5*(L - D)*tanα, where: L is the width of the cylindrical hopper (1), D is the diameter of the discharge outlet, and α is the angle of repose of the material.

4. A dust suppression hopper according to claim 1, characterized in that: a first hopper cover (12) is arranged above the feed inlet, and a second hopper cover (13) is arranged at the bottom of the discharge outlet.

5. A dust suppression hopper according to claim 1, characterized in that: the thickness of the cylindrical hopper (1) and the conical hopper (2) is 2 - 3 mm.

6. A dust suppression hopper according to claim 5, characterized in that: the inner parts of the cylindrical hopper (1) and the conical hopper (2) are lined with wear-resistant plates.

7. A dust suppression hopper according to claim 1, characterized in that: a fixing block (15) is fixedly arranged outside the cylindrical hopper (1), and the fixing block (15) is embedded in the upper part of the bracket (3).

8. A dust suppression hopper according to claim 7, characterized in that: a moving pulley (14) is arranged at the bottom of the bracket (3).

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