Inclined air conveying groove for material conveying

Abstract

The utility model discloses an air inclined conveying groove for material conveying, which is characterized in that a vibrator is mounted at the bottom of the inclined groove, air supply mechanisms are arranged on two sides of the inclined groove, each air supply mechanism comprises air uniformizing boxes, flat air pipes and sealing plates, and the air uniformizing boxes are piled and mounted on two sides of the inclined groove and are communicated with an external air source; the multiple flat air pipes are evenly installed at the air outlet end of the air uniformizing box and located in the inclined groove, the sealing plates are rotationally installed at the air outlet ends of the flat air pipes through torsion springs, and the far ends of the sealing plates abut against the air outlet ends of the flat air pipes. According to the air inclined conveying groove, a breathable layer is omitted, original bottom single air supply is changed into two-side air supply through the air supply mechanism, air is directly supplied through the flat air pipes, obstruction is reduced, the utilization efficiency of airflow kinetic energy is improved, the feeding effect is improved, and energy consumption is reduced; when no air is supplied or air is supplied, the flat air pipe can be automatically closed, the material is prevented from flowing backwards after entering the chute, and the internal smoothness of the air supply mechanism is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of material conveying equipment, in particular to an air inclined trough for material conveying. Background Art

[0002] An air conveying inclined trough (hereinafter collectively referred to as an inclined trough) is a device that uses air flow to convey bulk granular materials along a pipeline. It can be used for easily fluidized powdery materials such as cement and fly ash. The trough uses a high-pressure centrifugal fan as the power source to keep the materials in the closed conveying inclined trough in a fluidized state and slowly flow at the inclined end. During the cement production process, equipment such as packaging machines, bag aligning machines, and bag cleaning machines will all more or less have the phenomenon of cement overflow or leakage during operation. Therefore, it is usually connected to the feeding chute of the inclined trough through a feeding funnel. The internal structure of the existing air conveying inclined trough is basically divided into an upper conveying chamber and a lower air chamber. The air chamber is connected to a gas supply device, and a breathable layer between the conveying chamber and the air chamber is used for air flow to pass through to convey the materials.

[0003] Existing, a Chinese utility model patent with the publication number CN213201493U and the name of an air conveying inclined trough with a blanking point buffering structure. The structure of this air conveying inclined trough uses air flow to suspend the materials, and the air flow moves passively towards the discharge end in the trough. Then, based on a certain gravity and a ramp at a certain angle, the materials are conveyed together. This air conveying inclined trough is inconvenient to use. The breathable layer (canvas layer) itself and the materials easily adhered to it seriously affect the air permeability, resulting in serious waste of air flow kinetic energy, high energy consumption, and the need for cleaning and replacement at irregular intervals, or the need to increase the power of the gas supply device. Otherwise, the conveying effect will decline, and the breathable layer has certain pores, resulting in serious material leakage. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an air inclined trough for material conveying to solve the problems of inconvenient use, serious material leakage, serious waste of air flow kinetic energy, and high energy consumption of the existing air conveying inclined trough.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] An air inclined trough for material conveying includes an inclined trough. A vibrator is installed at the bottom of the inclined trough. Air supply mechanisms are arranged on both sides of the inclined trough. The air supply mechanisms include an air distribution box, flat air ducts, and sealing plates. The air distribution boxes are symmetrically installed on both sides of the inclined trough and are connected to an external air source. A plurality of flat air ducts are evenly installed at the air outlet ends of the air distribution boxes and are located inside the inclined trough. The sealing plates are rotatably installed at the air outlet ends of the flat air ducts through torsion springs, and the distal ends of the sealing plates abut against the air outlet ends of the flat air ducts.

[0007] A further technical solution is that a plurality of lever-type feeding mechanisms are connected to the top of the inclined chute, and the air outlet ends of at least one flat air duct face the discharge port of the lever-type feeding mechanism.

[0008] A further technical solution is that the flat air ducts on the two air distribution boxes are arranged staggeredly.

[0009] A further technical solution is that the flat air duct is arranged obliquely along the advancing direction of the materials in the inclined chute.

[0010] A further technical solution is that the lever-type feeding mechanism includes a blanking pipe, a flap, a lever and a hanging counterweight. The discharge end of the blanking pipe is communicated with the top of the inclined chute. The flap is rotatably installed in the blanking pipe through a rotating shaft, and the rotating shaft is close to the inner side wall of the blanking pipe. The lever is connected to the outer end of the rotating shaft. The hanging counterweight is movably connected to the hanging hole on the lever. The lever-type feeding mechanism is also provided with a limiting member adapted to the flap.

[0011] A further technical solution is that the hanging counterweight includes a hook, a weight and a nut. The weight is sleeved on the tail of the hook, and the nut is threadedly connected to the tail of the hook and abuts against the weight.

[0012] A further technical solution is that the limiting member is a baffle installed on the inner side wall of the blanking pipe. The baffle is located below the flap and close to the rotating shaft.

[0013] A further technical solution is that a push rod for controlling the angle of the flap is arranged on the outer side of the blanking pipe. The top of the push rod abuts against the lower surface of the lever. The push rod is threadedly connected to an ear plate on the outer side of the blanking pipe, and a spherical head plate is arranged at the top of the push rod.

[0014] Compared with the prior art, at least one of the following beneficial effects can be achieved by the present utility model:

[0015] The present utility model provides an air inclined chute for material transportation. This air inclined chute cancels the use of a breathable layer, and uses a air supply mechanism to change the original single bottom air supply to two-side air supply. And with the help of a plurality of flat air ducts for direct air supply, the obstruction is reduced to increase the utilization efficiency of air flow energy, improve the feeding effect and reduce energy consumption. Moreover, a sealing plate is rotatably installed on the flat air duct through a torsion spring. When there is no air supply or the air supply is small, the flat air duct can be automatically closed to prevent backflow of materials after entering the inclined chute, prevent materials from entering the air supply mechanism, and ensure the smoothness inside the air supply mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of an air inclined chute for material transportation according to the present utility model.

[0017] Figure 2 This is a Figure 1 structural schematic diagram of the air supply mechanism in the present utility model.

[0018] Figure 3 This is a Figure 2 structural schematic diagram from a top-down perspective of the present utility model.

[0019] Figure 4 This is a Figure 1 structural schematic diagram of the lever-type feeding mechanism in the present utility model.

[0020] Figure 5 This is a Figure 4 structural schematic diagram from a partial cross-sectional perspective of the present utility model.

[0021] Reference numerals: 1, inclined chute; 2, lever-type feeding mechanism; 3, blanking pipe; 4, flap; 5, lever; 6, hook-type counterweight; 7, rotating shaft; 8, hanging hole; 9, restricting member; 10, hook; 11, weight; 12, nut; 13, ejector rod; 14, ball head plate; 15, air supply mechanism; 16, air distribution box; 17, flat air duct; 18, sealing plate. Detailed implementation manners

[0022] To make the purpose, technical solutions and advantages of the implementation manners of the present utility model clearer, the technical solutions in the implementation manners of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the implementation manners of the present utility model. Obviously, the described implementation manners are part of the implementation manners of the present utility model, rather than all of them. Usually, the components of the implementation manners of the present utility model described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the implementation manners of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected implementation manners of the present utility model. Based on the implementation manners in the present utility model, all other implementation manners obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0024] It should be noted that, without conflict, the implementation manners in the present utility model and the features in the implementation manners can be combined with each other.

[0025] It should be noted that: similar reference numerals and letters represent similar items in the following accompanying drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0026] In the description of the present utility model, 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, or the orientation or positional relationship in which the product of the present utility model is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model 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 should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] Embodiment 1:

[0029] As shown in this embodiment Figure 1 、 Figure 2 and Figure 3 A pneumatic inclined conveyor for material transportation includes an inclined trough 1. A vibrator is installed at the bottom of the inclined trough 1. Air supply mechanisms 15 are arranged on both sides of the inclined trough 1. The air supply mechanisms 15 include an air distribution box 16, flat air ducts 17 and sealing plates 18. The air distribution boxes 16 are symmetrically installed on both sides of the inclined trough 1 and communicated with an external air source. A plurality of flat air ducts 17 are evenly installed at the air outlet ends of the air distribution boxes 16 and are located inside the inclined trough 1. The sealing plates 18 are rotatably installed at the air outlet ends of the flat air ducts 17 through torsion springs, and the distal ends of the sealing plates 18 abut against the air outlet ends of the flat air ducts 17.

[0030] The air compressor supplies air to the high-pressure air tank. The high-pressure air tank serves as a stable external air source and supplies air to the air distribution box 16 of the air supply mechanism 15. When the thrust provided by the air flow to the sealing plate 18 is greater than the torsion of the torsion spring, the sealing plate 18 rotates at the air outlet end of the flat air duct 17, and the flat air duct 17 starts to discharge air to pneumatically convey materials. When there is no air or the air supply is small, under the action of the torsion spring, the sealing plate 18 resets, automatically closing the flat air duct 17 to prevent backflow of materials after entering the chute, preventing materials from entering the air supply mechanism 15 and ensuring the smoothness inside the air supply mechanism 15. This air chute eliminates the use of the breathable layer, changes the original single bottom air supply to two-side air supply using the air supply mechanism 15, and directly supplies air through multiple flat air ducts 17, reducing obstacles to increase the utilization efficiency of air flow kinetic energy, improving the feeding effect and reducing energy consumption.

[0031] Preferably, a plurality of lever-type feeding mechanisms 2 are connected to the top of the chute 1, and the air outlet end of at least one flat air duct 17 faces the discharge port of the lever-type feeding mechanism 2.

[0032] Ensure that each feed inlet of the chute 1 can be impacted by the air flow, achieving the effect of pneumatically conveying while feeding, and reducing the accumulation of materials at the feed inlet.

[0033] Preferably, the flat air ducts 17 on the two air distribution boxes 16 are arranged staggeredly.

[0034] The flat air ducts 17 on the two inner sides of the chute 1 are arranged staggeredly, not only ensuring more uniform air outlet, but also preventing the phenomenon of mutual interference and cancellation of the air outlet.

[0035] Preferably, the flat air duct 17 is inclined along the material advancing direction of the chute 1. Further, the flat air duct 17 is inclined along the material advancing direction of the chute 1 and the inner bottom of the chute 1.

[0036] In the existing air chute, the air flow can only flow along the internal structure of the air conveying chute and passively carry the materials forward, resulting in serious waste of kinetic energy and ultimately high energy consumption of the air conveying chute. When the flat air duct 17 is inclined, the kinetic energy of the air outlet can be directly applied to the materials, with high energy conversion rate and better pneumatic conveying effect.

[0037] Embodiment 2:

[0038] Based on the above embodiment, in this embodiment, as Figure 4 and Figure 5 shown, the lever-type feeding mechanism 2 includes a blanking pipe 3, a flap 4, a lever 5 and a hook-type counterweight 6. The discharge end of the blanking pipe 3 is communicated with the top of the chute 1. The flap 4 is rotatably installed in the blanking pipe 3 through a rotating shaft 7, and the rotating shaft 7 is close to the inner side wall of the blanking pipe 3. The lever 5 is connected to the outer end of the rotating shaft 7. The hook-type counterweight 6 is movably connected to the hanging hole 8 on the lever 5. The lever-type feeding mechanism 2 is also provided with a limiting member 9 adapted to the flap 4.

[0039] Under the action of the hangable counterweight 6, the flap 4 can be closed with the help of the lever 5. When the cement powder falls into the discharge pipe 3 and accumulates to a certain weight on the flap 4, the closed state of the flap 4 is broken, and the flap 4 flips over to complete the unloading. After the material is unloaded, the flap 4 is closed again under the action of the hangable counterweight 6 to achieve wind locking. A plurality of hanging holes 8 are provided on the lever 5, which is convenient for adjusting the position of the hangable counterweight 6 on the lever to achieve the effect of adjusting the lever arm. Moreover, the hangable counterweight 6 can be removed, which is convenient for replacing counterweights of different weights. The size of the counterweight and the length of the lever arm are easy to adjust. The adjustment range of the flap opening threshold is wide, which is suitable for the transportation of cement with different specific gravities.

[0040] Preferably, the hangable counterweight 6 includes a hook 10 , a weight 11 and a nut 12 , the weight 11 is sleeved on the tail of the hook 10 , the nut 12 is threadedly connected to the tail of the hook 10 , and the nut 12 abuts against the weight 11 .

[0041] The weight 11 on the hook 10 can be removed and replaced, and then the weight 11 can be unhooked with the nut 12.

[0042] Preferably, the limiting member 9 is a baffle installed on the inner wall of the discharge pipe 3 , and the baffle is located below the flap 4 and close to the rotating shaft 7 .

[0043] The flap 4 rotates eccentrically with the rotating shaft 7 as the axis, which is convenient for unloading. The limiting member 9 is a baffle to ensure that the flap 4 will not flip arbitrarily, and the closing and air locking of the discharge pipe 3 are realized under the action of the lever 5 and the hangable counterweight block 6.

[0044] Preferably, a push rod 13 for controlling the angle of the flap 4 is provided on the outer side of the feed tube 3, the top of the push rod 13 is against the lower surface of the lever 5, the push rod 13 is threadedly connected to the ear plate on the outer side of the feed tube 3, and a ball head plate 14 is provided on the top of the push rod 13.

[0045] The tilt angle of the lever 5 can be controlled according to the height of the push rod 13, thereby controlling the opening angle of the flap 4 to achieve a closing effect. In addition, when there is a blockage or too much material, the flap 4 is kept open with a small amplitude to minimize air leakage and achieve a slow-flow discharge effect. The push rod 13 is threadedly connected to the ear plate on the outside of the discharge pipe 3, which makes it convenient for the push rod 13 to adjust its height at will, thereby arbitrarily controlling the opening angle of the flap 4. The ball head plate 14 can better cooperate with the flap 4 at any opening angle.

[0046] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An air chute for material conveying, comprising a chute (1), characterized in that: A vibrator is installed at the bottom of the inclined chute (1). Air supply mechanisms (15) are arranged on both sides of the inclined chute (1). The air supply mechanisms (15) include air distribution boxes (16), flat air ducts (17), and sealing plates (18). The air distribution boxes (16) are symmetrically installed on both sides of the inclined chute (1) and are communicated with an external air source. A plurality of the flat air ducts (17) are evenly installed on the air outlet ends of the air distribution boxes (16) and are located inside the inclined chute (1). The sealing plates (18) are rotatably installed on the air outlet ends of the flat air ducts (17) through torsion springs, and the distal ends of the sealing plates (18) abut against the air outlet ends of the flat air ducts (17).

2. The air chute for material conveying according to claim 1, characterized in that: A plurality of lever-type feeding mechanisms (2) are connected to the top of the inclined chute (1). The air outlet end of at least one of the flat air ducts (17) faces the discharge port of the lever-type feeding mechanism (2).

3. The air chute for material conveying according to claim 1, wherein: The flat air ducts (17) on the two air distribution boxes (16) are arranged staggeredly.

4. The air chute for material conveying according to claim 1, characterized in that: The flat air ducts (17) are arranged obliquely along the material advancing direction of the inclined chute (1).

5. The air chute for material conveying according to claim 2, wherein: The lever-type feeding mechanism (2) includes a blanking pipe (3), a flap (4), a lever (5), and a hanging-type counterweight (6). The discharge end of the blanking pipe (3) is communicated with the top of the inclined chute (1). The flap (4) is rotatably installed in the blanking pipe (3) through a rotating shaft (7), and the rotating shaft (7) is close to the inner side wall of the blanking pipe (3). The lever (5) is connected to the outer end of the rotating shaft (7). The hanging-type counterweight (6) is movably connected to a hanging hole (8) on the lever (5). The lever-type feeding mechanism (2) is further provided with a limiting member (9) adapted to the flap (4).

6. The air chute for material conveying according to claim 5, characterized in that: The hanging-type counterweight (6) includes a hook (10), a weight (11), and a nut (12). The weight (11) is sleeved on the tail of the hook (10). The nut (12) is threadedly connected to the tail of the hook (10), and the nut (12) abuts against the weight (11).

7. The air chute for material conveying according to claim 5, wherein: The limiting member (9) is a baffle installed on the inner side wall of the blanking pipe (3). The baffle is located below the flap (4) and close to the rotating shaft (7).

8. The air chute for material conveying according to claim 7, characterized in that: A push rod (13) for controlling the angle of the flap (4) is arranged on the outer side of the blanking pipe (3). The top of the push rod (13) abuts against the lower surface of the lever (5). The push rod (13) is threadedly connected to an ear plate on the outer side of the blanking pipe (3). A spherical head plate (14) is arranged at the top of the push rod (13).

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