CN110902413A

CN110902413A - Bulk cargo hopper discharge gate prevents spouting material and raise dust environment-friendly device

Info

Publication number: CN110902413A
Application number: CN201911169752.XA
Authority: CN
Inventors: 李建强; 唐善琴; 刘丰; 李云龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-03-24

Abstract

The invention relates to an environment-friendly device for preventing material spraying and dust raising at a discharge port of a bulk cargo hopper, which comprises a hopper, a guide chute and a conveyor belt, wherein a bumper beam with a herringbone cross section is horizontally arranged in the hopper, the guide chute is connected with the bottom end of the hopper, and the conveyor belt is positioned right below the guide chute; the air return pipe, the baffle valve and the one-way valve are also included; two ends of the air return pipe are respectively communicated with the top end of the guide chute and the side wall of the upper part of the hopper, the baffle valve is movably connected with the inner wall of the hopper, and the baffle valve corresponds to the top end of the air return pipe; the one-way door is movably connected with the side wall of the guide chute, and the one-way door corresponds to the upper position and the lower position of the conveyor belt. The invention can prevent the material spraying and the dust flying aiming at the material outlet of the hopper, can effectively avoid the dust flying generated by the material spraying, reduce the dust flying pollution, reduce the material loss, lighten the labor intensity of cleaning personnel and protect the platform and the surrounding environment of a wharf.

Description

Bulk cargo hopper discharge gate prevents spouting material and raise dust environment-friendly device

Technical Field

The invention relates to the field of port ship unloaders, in particular to an environment-friendly device for preventing material spraying and dust raising at a discharge port of a bulk cargo hopper.

Background

The ship unloader is a special machine which is made of a continuous conveying machine and can lift the machine head of the bulk material, or has the self-taking capability, or is matched with a taking and feeding device to continuously take the bulk material out of a cabin, then unloads the bulk material to an arm support or a rack and can convey the bulk material to a local conveyor system of a main conveying system at the bank, and the unloading efficiency can be greatly improved by using the ship unloader.

The ship unloader is at the during operation, and the grab bucket catches the material on the transport ship, moves to and loosens directly over the hopper, and the material falls into the hopper in downwards because of gravity, after the buffering of buffer beam slows down, falls out to the conveyer belt by the discharge gate of hopper bottom, through conveyer belt conveying output.

When the material that needs the ship to unload is powdery material, the material whereabouts, both ends blowout around the baffle box can be followed to the raise dust of production, not only can lead to the loss of material, more can cause dock platform and surrounding environment to pollute, directly influences air quality on every side to the intensity of labour who cleans the personnel is great.

Disclosure of Invention

The purpose of the invention is: the utility model provides a bulk cargo hopper discharge gate prevents spouting material and raise dust environment-friendly device prevents spouting material and raise dust to the hopper feed opening, can effectually avoid the raise dust blowout of spraying the production of material, reduces the raise dust pollution, reduces the material and runs off, alleviates the intensity of labour who cleans personnel, protects dock's platform and all ring edge borders.

In order to achieve the above purpose, the present invention provides the following technical solutions:

an environment-friendly device for preventing material spraying and dust raising at a discharge port of a bulk cargo hopper comprises the hopper, a guide chute and a conveyor belt, wherein a bumper beam with a herringbone cross section is horizontally arranged in the hopper, the guide chute is connected with the bottom end of the hopper, and the conveyor belt is positioned right below the guide chute; the air return pipe, the baffle valve and the one-way valve are also included; two ends of the air return pipe are respectively communicated with the top end of the guide chute and the side wall of the upper part of the hopper, the baffle valve is movably connected with the inner wall of the hopper, and the baffle valve corresponds to the top end of the air return pipe; the one-way door is movably connected with the side wall of the guide chute, and the one-way door corresponds to the upper position and the lower position of the conveyor belt.

Furthermore, the number of the air return pipes is two, and the two air return pipes are respectively positioned at two ends of the length direction of the top end of the guide chute; the connecting part of the air return pipe and the hopper is specifically positioned right below two ends of the buffer beam.

Further, the outline of the baffle air valve is larger than the outline of the interface of the return air pipe and the hopper.

Furthermore, a door seat is arranged on the side wall of the guide chute, pin shafts at two ends of the top of the door plate of the one-way door penetrate through a sliding chute of the door seat, and the pin shafts can slide along the sliding chute.

Furthermore, the gate seat is vertically arranged, the pin shaft of the one-way door is horizontally arranged, and the axis of the pin shaft is vertical to the conveying direction of the conveying belt.

Furthermore, the top of one-way door is provided with the balancing weight, the balancing weight passes through the round pin hub connection of connecting rod and one-way door, the balancing weight specifically is located the one side that the round pin axle deviates from the door plant.

The invention has the beneficial effects that: the utility model provides a bulk cargo hopper discharge gate prevents spouting material and raise dust environment-friendly device, through setting up the muffler, the raise dust that will strike the production is drawn back to in the hopper along the air current, and block the both ends blowout of raise dust from the baffle box through the one-way door, prevent spouting material and raise dust to the hopper feed opening, can effectually avoid the raise dust blowout of spraying the production of material, reduce the raise dust pollution, improve the air quality, reduce the material loss, thereby reduce the waste of raw and other materials, alleviate cleanup crew's intensity of labour simultaneously, protect the platform and the all ring edge borders of pier.

Drawings

Fig. 1 is a front view cross-sectional view of the overall structure of the bulk cargo hopper discharge port anti-spraying and dust-raising environmental protection device of the invention.

Fig. 2 is a right view of the overall structure of the environmental protection device for preventing material spraying and dust emission at the discharge port of the bulk cargo hopper.

Fig. 3 is a partial structural schematic view of a one-way door of the bulk cargo hopper discharge port material spraying and dust emission preventing environment-friendly device.

In the figure: 1. a hopper; 2. a bumper beam; 3. a material guide chute; 4. an air return pipe; 5. a baffle valve; 6. a conveyor belt; 7. a door seat; 8. a balancing weight; 9. a connecting rod; 10. a one-way door.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 3, an environment-friendly device for preventing material spraying and dust raising at a discharge port of a bulk cargo hopper comprises a hopper 1, a material guide chute 3 and a conveyor belt 6, wherein a bumper beam 2 with a herringbone cross section is horizontally arranged in the hopper 1, the material guide chute 3 is connected with the bottom end of the hopper 1, and the conveyor belt 6 is positioned right below the material guide chute 3; the air return pipe 4, the baffle valve 5 and the one-way valve 10 are also included; the two ends of the air return pipe 4 are respectively communicated with the top end of the guide chute 3 and the side wall of the upper part of the hopper 1, the air return pipe 4 plays a role in guiding back air flow to form backflow, waste of raw materials is avoided, meanwhile, the air flow is prevented from being sprayed out, the baffle valve 5 is movably connected with the inner wall of the hopper 1, and the baffle valve 5 corresponds to the top end of the air return pipe 4; the one-way door 10 is movably connected with the side wall of the material guide groove 3, the one-way door 10 corresponds to the upper position and the lower position of the conveyor belt 6, and the one-way door 10 can only be opened in a one-way overturning mode and is used for preventing air flow from being sprayed out and facilitating material conveying.

The number of the air return pipes 4 is two and the air return pipes are respectively positioned at two ends of the length direction of the top end of the material guide chute 3; the connecting part of the air return pipe 4 and the hopper 1 is specifically positioned right below two ends of the buffer beam 2.

The outline of the baffle air valve 5 is larger than the outline of the interface of the return air pipe 4 and the hopper 1, namely the baffle air valve 5 can completely cover the outline of the interface of the return air pipe 4 and the hopper 1.

A door seat 7 is arranged on the side wall of the material guide groove 3, pin shafts at two ends of the top of a door plate of the one-way door 10 penetrate through a sliding groove of the door seat 7, and the pin shafts can slide along the sliding groove; when the materials on the conveyor belt 6 are more, the pin shaft of the one-way door 10 slides upwards along the chute, so that the materials are output favorably.

The door seat 7 is vertically arranged, the pin shaft of the one-way door 10 is horizontally arranged, and the axis of the pin shaft is vertical to the conveying direction of the conveying belt 6, so that the one-way door 10 can be turned over and opened along the running direction of the conveying belt 6.

The top of one-way door 10 is provided with balancing weight 8, balancing weight 8 passes through the round pin hub connection of connecting rod 9 with one-way door 10, balancing weight 8 specifically is located the one side that the round pin axle deviates from the door plant, balancing weight 8 specifically plays the counter weight effect to make things convenient for the material promotion on the conveyer belt 6 to open one-way door 10.

The working principle of the invention is as follows: after grabbing materials from an open cabin of a transport ship, a grab bucket of the ship unloader moves to a position right above a hopper 1, then loosens, and the materials fall into the hopper 1 due to gravity, firstly fall on a buffer beam 2 for buffering and decelerating, then are buffered and decelerated by the inner wall of the hopper 1, then fall into a material guide groove 3, and finally fall on a conveyor belt 6; in the falling process of the material, airflow pressure difference and raised dust are generated due to falling impact, the moving direction of the airflow and the raised dust in the guide chute 3 is shown by an arrow in the guide chute 3 in fig. 1, but the airflow mixed with the raised dust is blocked by the one-way door 10, so the airflow enters the bottom end of the air return pipe 4 and moves upwards along the direction shown by the arrow in the air return pipe 4 until the airflow reaches the top end of the air return pipe 4, the baffle valve 5 is flushed open, and the airflow enters the hopper 1, so that the recovery of the material and the suppression of the raised dust are realized; the baffle valve 5 is positioned below the buffer beam 2, so that the overturning operation is not influenced by the falling impact of materials; the conveyer belt 6 is along arrow show direction horizontal migration, with the material transmission to the baffle box 3 outside, under the material effect on the conveyer belt 6, the unidirectional door 10 receives frictional force along the certain angle of round pin axle upset to the round pin axle can be followed the spout of gate seat 7 and upwards slided, when guaranteeing to block the air current in the baffle box 3, is favorable to the output of material.

Under the condition that the material is continuously conveyed, the door plate of the one-way door 10 is turned upwards, the posture is as shown in fig. 3, and one side of the door plate facing the interior of the material guide groove 3 is in direct contact with the material.

The one-way door 10 is thick and therefore heavy, and prevents air from rushing out of the door panel and spilling out. In the process of turning over the one-way door 10, the balancing weight 8 plays a role in balancing weight, and the situation that the door plate of the one-way door 10 is difficult to push by materials on the conveying belt 6 is turned over and opened is avoided.

One side of the door plate facing the interior of the material guide chute 3 is directly contacted with the material, so that air flow can be blocked; although complete blocking cannot be achieved, the cooperation of the return air pipe 4 and the one-way door 10 can greatly reduce the air flow ejection mixed with the raised dust compared with the prior art.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The above examples are intended to further illustrate the present invention, but are not intended to limit the invention to these specific embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be understood to be within the protection scope of the present invention.

Claims

1. The environment-friendly device for preventing material spraying and dust raising at the discharge port of the bulk cargo hopper comprises a hopper (1), a material guide groove (3) and a conveyor belt (6), wherein a buffer beam (2) with a herringbone cross section is horizontally arranged in the hopper (1), the material guide groove (3) is connected with the bottom end of the hopper (1), and the conveyor belt (6) is positioned under the material guide groove (3); the method is characterized in that: the air return pipe (4), the baffle valve (5) and the one-way valve (10) are also included; two ends of the air return pipe (4) are respectively communicated with the top end of the guide chute (3) and the side wall of the upper part of the hopper (1), the baffle valve (5) is movably connected with the inner wall of the hopper (1), and the baffle valve (5) corresponds to the top end of the air return pipe (4); the one-way door (10) is movably connected with the side wall of the guide chute (3), and the one-way door (10) corresponds to the upper position and the lower position of the conveyor belt (6).

2. The bulk cargo hopper discharge port material spraying and dust flying environment-friendly device according to claim 1, characterized in that: the number of the air return pipes (4) is two, and the air return pipes are respectively positioned at two ends of the length direction of the top end of the guide chute (3); the connecting part of the air return pipe (4) and the hopper (1) is specifically positioned right below two ends of the buffer beam (2).

3. The bulk cargo hopper discharge port material spraying and dust flying environment-friendly device according to claim 2, characterized in that: the outline of the baffle valve (5) is larger than the outline of the interface of the return air pipe (4) and the hopper (1).

4. The bulk cargo hopper discharge port material spraying and dust flying environment-friendly device according to claim 1, characterized in that: the side wall of the guide chute (3) is provided with a door seat (7), pin shafts at two ends of the top of a door plate of the one-way door (10) penetrate through a chute of the door seat (7), and the pin shafts can slide along the chute.

5. The bulk cargo hopper discharge port material spraying and dust flying environment-friendly device according to claim 4, characterized in that: the door seat (7) is vertically arranged, the pin shaft of the one-way door (10) is horizontally arranged, and the axis of the pin shaft is vertical to the conveying direction of the conveying belt (6).

6. The bulk cargo hopper discharge port material spraying and dust flying prevention environment-friendly device according to claim 5, characterized in that: the top of one-way door (10) is provided with balancing weight (8), balancing weight (8) are through the round pin hub connection of connecting rod (9) and one-way door (10), balancing weight (8) specifically are located the one side that the round pin axle deviates from the door plant.