Anti-scattering buffer feed hopper and closed belt conveyor with same

Abstract

The utility model relates to an anti-spillage buffer feed hopper and a closed belt conveyor with the same, an inclined chute is arranged in a hopper body of the anti-spillage buffer feed hopper, and a discharge narrow opening is arranged in the center of the chute bottom of one side of the inclined chute close to a feed section of the hopper body. A material guiding protruding block is arranged at the end, close to the discharging section of the hopper body, of the inclined chute, after grain materials enter the hopper body, a small part of the materials flow out of the discharging narrow opening after being gathered through the inclined chute and fall into the center area of the conveying belt of the belt conveyor in the width direction, and the conveying belt is centrally pressed under the action of material pressure. Material scattering caused by deviation of the conveying belt is avoided, most of the rest materials are buffered and gathered under the action of the inclined chute and the material guide protruding blocks to form low-speed dense material flow, the impact of the materials on the conveying belt can be reduced by reducing the flow speed, the conveying belt is prevented from being impacted and deviated, the materials are prevented from splashing, and air among the dense material flow and material particles is little. And dust diffusion and flying and dust pollution can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of conveying equipment, and in particular relates to an anti-scattering buffer feed hopper and a closed belt conveyor with the feed hopper. Background Art

[0002] Belt conveyor is a kind of transportation equipment that transports materials in a continuous manner. It has the advantages of low cost, mature technology, simple and easy operation, etc. It is widely used. In the field of grain machinery and equipment, belt conveyors are widely used in grain transportation, loading, warehousing, and outbound transportation. In addition, in order to prevent light impurities and dust in grain from drifting into the air, causing large dust in grain transportation and environmental pollution, technicians have developed a closed belt conveyor that is very suitable for grain transportation. The closed belt conveyor is a belt conveyor that encloses the conveyor belt and rollers in the outer shell, and connects the suction device to the outer shell, which can remove dust and light impurities in the grain transportation process. The purpose is to remove dust and light impurities and prevent dust and light impurities from polluting the air. At present, closed belt conveyors have been widely used in grain transportation.

[0003] However, the feed hopper at the tail of the current closed belt conveyor is mostly a simple funnel-shaped structure. The feed port of the feed hopper directly corresponds to the conveyor belt. After the grain material enters from the feed port, it falls directly onto the conveyor belt. The grain material flow impacts the conveyor belt, which can easily cause the conveyor belt to deviate. In addition, the collision between grain particles and the conveyor belt and between grain particles can easily cause grain particles to splash, causing leakage and scattering of materials, and it can also easily cause dust in the grain material flow to spread and form dust pollution. Summary of the invention

[0004] In summary, in order to overcome the deficiencies of the prior art problems, the utility model provides an anti-scattering buffer feed hopper, wherein the hopper body is provided with an inclined chute, a discharge narrow opening is arranged at the center of the bottom of the chute on one side of the feed section of the hopper body, and a material guide protrusion is arranged at one end of the discharge section of the hopper body. After the grain material enters the hopper body, a small part of the material is gathered through the inclined chute and flows out from the discharge narrow opening, and falls to the central area in the width direction of the conveyor belt of the belt conveyor. The material applies pressure to the conveyor belt to center the conveyor belt, thereby avoiding material scattering caused by deviation of the conveyor belt. Most of the remaining material is buffered and gathered under the action of the inclined chute and the material guide protrusion to form a low-speed and dense material flow. The flow rate of the material is reduced, which can reduce the impact of the material on the conveyor belt, prevent the conveyor belt from impacting and deviating and the material from splashing. At the same time, the dense material flow has less air between the material particles, which can reduce the diffusion and flying of dust and reduce dust pollution. The utility model also provides a closed belt conveyor with the anti-scattering buffer feed hopper.

[0005] In order to solve the above technical problems, the technical solution of the anti-spill buffer feed hopper provided by the utility model is implemented as follows:

[0006] A buffer feed hopper for preventing material from spilling, comprising: a hopper body, the hopper body having a feed section, a discharge section and a buffer section, the feed section having a feed port, the discharge section having a discharge port, the axis of the feed section being parallel to the axis of the discharge section and being staggered, the feed section and the discharge section being connected via an inclined buffer section, the buffer section having an inclined chute, the cross-sectional shape of the inclined chute being "V"-shaped, the inclined chute having a discharge narrow opening, the discharge narrow opening being located at the center of the bottom of the inclined chute on the side close to the feed section.

[0007] Furthermore, the angle a between the inclined chute and the horizontal plane is 30°~60°.

[0008] Furthermore, the inner walls of the two side plates of the buffer section are provided with inwardly protruding guide protrusions, and the two guide protrusions are arranged opposite to each other, and there is a channel for material to flow through between the two protrusions. The guide protrusion is located at one end of the inclined chute close to the discharge section, and the side of the guide protrusion close to the feed section has a guide slope, and the guide slope is inclined from the outside to the inside along the material flow direction from the feed section to the discharge section.

[0009] Furthermore, a material guide plate arranged obliquely from outside to inside is provided on the material outlet of the material outlet section.

[0010] Furthermore, it also includes a wear-resistant lining, which is detachably connected to the inner wall of the feed section, the inner wall of the inclined chute and the guide slope of the guide protrusion.

[0011] Furthermore, it also includes a connecting flange, which is arranged along the circumference of the hopper body and is fixedly connected to the lower outer surface of the hopper body.

[0012] Furthermore, it also includes an observation port, which is located on the top plate of the hopper body and has an observation window that can be opened and closed.

[0013] The technical solution of the closed belt conveyor with the above-mentioned feed hopper provided by the utility model is realized as follows:

[0014] A closed belt conveyor comprises a connection port, wherein the connection port is arranged on the upper cover of the shell of the closed belt conveyor, and further comprises the anti-spillage buffer feed hopper as described above, wherein the discharge section of the hopper body of the anti-spillage buffer feed hopper is inserted into the connection port, and the hopper body is detachably connected to the upper cover via a connecting flange.

[0015] The beneficial effects of the utility model are:

[0016] 1. The hopper body of the utility model's anti-scattering buffer feed hopper is provided with an inclined chute arranged obliquely, a narrow discharge opening is arranged at the center of the trough bottom on one side of the feeding section of the inclined chute close to the hopper body, and a material guide protrusion is arranged at one end of the discharge section of the inclined chute close to the hopper body. After the grain material enters the hopper body, a small part of the material is gathered through the inclined chute and then flows out from the narrow discharge opening and falls to the central area in the width direction of the conveyor belt of the belt conveyor. The material applies pressure to the conveyor belt to center the conveyor belt and press it to avoid material scattering caused by deviation of the conveyor belt. Most of the remaining materials are buffered and gathered under the action of the inclined chute and the material guide protrusion to form a low-speed and dense material flow. The flow rate of the material is reduced, which can reduce the impact of the material on the conveyor belt, prevent the conveyor belt from impacting and deviating and the material from splashing. At the same time, the dense material flow has less air between the material particles, which can reduce the diffusion and flying of dust and reduce dust pollution.

[0017] 2. A guide plate inclined from outside to inside is provided on the discharge port of the discharge section of the hopper body of the utility model. When the grain material falls from the discharge port onto the conveyor belt, the setting of the guide plate can make the material converge from outside to inside, so that the material falls to the middle area of ​​the conveyor belt, which can further prevent the material from being scattered.

[0018] 3. The anti-spill buffer feed hopper of the utility model is provided with a wear-resistant lining, which can be made of polyurethane wear-resistant plate. The setting of the wear-resistant lining can effectively reduce the impact of the material on the hopper body and the inclined chute during the falling flow of materials, can reduce wear, ensure service life, and also reduce noise.

[0019] 4. The anti-spill buffer feed hopper of the utility model has an observation port and an observation window. The observation window adopts a quick-opening observation window, which can be opened and closed conveniently and quickly through the pressure-type handle operation, so as to facilitate the observation of the material flow in the hopper body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the anti-spillage buffer feed hopper of the utility model;

[0021] Figure 2 This is a schematic diagram of the side structure of the anti-spill buffer feed hopper of the utility model;

[0022] Figure 3 It is a schematic diagram of the connection structure between the anti-scattering buffer feed hopper and the closed belt conveyor of the utility model. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0024] like Figure 1 and Figure 2As shown, a material-spill prevention buffer feed hopper, wherein: it comprises a hopper body 1, the hopper body 1 has a feed section 101, a discharge section 102 and a buffer section 103, the feed section 101 has a feed port, the discharge section 103 has a discharge port, the axis of the feed section 101 is parallel to the axis of the discharge section 102 and is staggered, the discharge port of the discharge section 102 is provided with a guide plate 5 arranged obliquely from outside to inside, the feed section 101 is connected to the discharge section 102 through the obliquely arranged buffer section 103, the buffer section 103 has an inclined chute 2, and the cross-sectional shape of the inclined chute 2 is "V" shaped. The inclined chute 2 has a discharge narrow opening 201, and the discharge narrow opening 201 is located at the center of the bottom of the inclined chute 2 on the side close to the feed section 101. The angle a between the inclined chute 2 and the horizontal plane is 30°~60°. The inner walls of the two side plates of the buffer section 103 are provided with inwardly protruding flow guide protrusions 3, and the two flow guide protrusions 3 are arranged opposite to each other, and there is a channel for the material to flow through between the two protrusions. The flow guide protrusion 3 is located at one end of the inclined chute 2 close to the discharge section 102, and the side of the flow guide protrusion 3 close to the feed section 101 has a flow guide slope 4, and the flow guide slope 4 is inclined from the outside to the inside along the material flow direction from the feed section 101 to the discharge section 102. The inner wall of the feed section 101, the inner wall of the inclined chute 2 and the flow guide slope 4 of the flow guide protrusion 3 are respectively connected with wear-resistant linings by screws, and the wear-resistant linings are polyurethane wear-resistant plates. The outer surface of the hopper body 1 is fixedly connected with a connecting flange 6, and the connecting flange 6 is arranged along the circumference of the hopper body 1. An observation port is provided on the top plate of the hopper body 1, and the observation port has an observation window 7 that can be opened and closed. The observation window 7 is a quick-opening observation window 7, and one side of the observation window 7 is hingedly connected to the top plate of the hopper body 1, and the other side of the observation window 7 is pressed against the top plate of the hopper body 1 through a pressing handle.

[0025] like Figure 3 As shown, a closed belt conveyor includes a connecting port, which is arranged on the upper cover 8 of the outer shell of the closed belt conveyor, and also includes the anti-spillage buffer feed hopper as described above, the discharge section 102 of the hopper body 1 of the anti-spillage buffer feed hopper is inserted into the connecting port, and the hopper body 1 is detachably connected to the upper cover 8 through a connecting flange 6.

[0026] When in use, the grain material enters the feed port of the hopper body 1 and falls into the inclined chute 2 along the feed section 101. Since the cross-sectional shape of the inclined chute 2 is a "V" shape, the grain material entering the inclined chute 2 flows obliquely downward along the inclined chute 2 toward the discharge section 102, and also converges to the bottom of the inclined chute 2. A small amount of the gathered grain material flows out from the discharge narrow opening 201 and falls to the central area of ​​the conveyor belt of the belt conveyor in the width direction. The material applies pressure to the conveyor belt to center the conveyor belt, thereby avoiding material spillage caused by deviation of the conveyor belt. Most of the grain material is buffered and converged under the action of the inclined chute 2 and the guide protrusion 3, becoming a low-speed and dense material flow. The low-speed and dense material flow flows obliquely downward along the inclined chute 2 toward the discharge section 102, and finally falls from the downward discharge port of the discharge section 102 onto the conveyor belt, completing the feeding of the closed belt conveyor. The setting of the inclined chute 2 forms a falling buffer for the grain materials falling along the feeding section 101, which can reduce the material flow speed, reduce the impact of the material on the conveyor belt, prevent the conveyor belt from running off and the material from splashing, thereby reducing material spillage. The setting of the guide plate 5 arranged from the outside to the inside on the discharge port of the discharge section 102 can make the grain materials fall to the middle area of ​​the conveyor belt, which can further prevent material spillage. When the grain material flows in the inclined chute 2, since the cross-sectional shape of the inclined chute 2 is a "V" shape, the inclined plates on both sides of the inclined chute 2 guide the grain material, so that the grain material converges inward from both sides, and the inclined plates on both sides of the inclined chute 2 squeeze the grain material. When the grain material flows through the guide protrusion 3, the guide slope 4 of the guide protrusion 3 guides the grain material, and also makes the grain material converge inward from both sides, and the guide slope 4 squeezes the grain material. Under the action of extrusion, the gaps between the grain particles become smaller, the air is squeezed out, the grain material flow is gradually dense, and a dense material flow is formed. The collision between the grain particles is reduced, which can effectively reduce dust, thereby reducing dust in the feeding process of the conveyor and reducing dust pollution.

[0027] It should be noted that the above-described embodiments are illustrative of the technical solution of the utility model rather than limiting. Equivalent substitutions made by ordinary technicians in the relevant technical field or other modifications made according to the prior art should be included in the scope of rights required by the utility model as long as they do not exceed the idea and scope of the technical solution of the utility model.

Claims

1. A material-spreading prevention buffer feed hopper, characterized in that: The utility model comprises a hopper body, wherein the hopper body comprises a feed section, a discharge section and a buffer section, wherein the feed section comprises a feed port, and the discharge section comprises a discharge port, wherein the axis of the feed section is parallel to the axis of the discharge section and is staggered, wherein the feed section and the discharge section are connected via an inclined buffer section, wherein an inclined chute is provided in the buffer section, wherein the cross-sectional shape of the inclined chute is "V"-shaped, and the inclined chute comprises a discharge narrow opening, wherein the discharge narrow opening is located at the center of the bottom of the inclined chute on the side close to the feed section.

2. The anti-spillage buffer feed hopper according to claim 1, characterized in that: The inner walls of the two side plates of the buffer section are provided with inwardly protruding guide protrusions, and the two guide protrusions are arranged opposite to each other, and there is a channel for material to flow through between the two protrusions. The guide protrusion is located at one end of the inclined chute close to the discharge section, and the side of the guide protrusion close to the feed section has a guide slope, and the guide slope is inclined from the outside to the inside along the material flow direction from the feed section to the discharge section.

3. The anti-spillage buffer feed hopper according to claim 1 or 2, characterized in that: A material guide plate which is arranged obliquely from outside to inside is arranged on the material outlet of the material outlet section.

4. The anti-spillage buffer feed hopper according to claim 3, characterized in that: The angle a between the inclined chute and the horizontal plane is 30° to 60°.

5. The anti-spillage buffer feed hopper according to claim 4, characterized in that: It also includes a wear-resistant lining plate, which is detachably connected to the inner wall of the feed section, the inner wall of the inclined chute and the guide slope of the guide protrusion.

6. The anti-spillage buffer feed hopper according to claim 5, characterized in that: It also includes a connecting flange, which is arranged along the circumference of the hopper body and is fixedly connected to the lower outer surface of the hopper body.

7. The anti-spillage buffer feed hopper according to claim 6, characterized in that: It also includes an observation port, which is located on the top plate of the hopper body and has an observation window that can be opened and closed.

8. A closed belt conveyor, comprising a connection port, wherein the connection port is arranged on an upper cover of a housing of the closed belt conveyor, characterized in that: It also includes the anti-spillage buffer feed hopper as described in any one of claims 1 to 7, the discharge section of the hopper body of the anti-spillage buffer feed hopper is inserted into the connecting port, and the hopper body is detachably connected to the upper cover through a connecting flange.

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