CN213201624U

CN213201624U - Can improve hopper of dustproof efficiency

Info

Publication number: CN213201624U
Application number: CN202022026731.7U
Authority: CN
Inventors: 赵星星; 何光文
Original assignee: Jiangsu Guruis Mechanical And Electrical Engineering Co ltd
Current assignee: Jiangsu Guruis Mechanical And Electrical Engineering Co ltd
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-05-14
Anticipated expiration: 2030-09-16

Abstract

A hopper capable of improving dust-proof efficiency comprises a frame body positioned below a grab bucket and a hopper arranged on the frame body, wherein the hopper comprises an upper hopper and a lower hopper, the upper hopper is positioned above the lower hopper, a discharge hole at the bottom of the upper hopper is provided with a dust-proof loose leaf, and a circulating air chamber is arranged on the frame body; the circulating air chamber comprises an air channel, an upper cavity and a lower cavity which are arranged at two ends of the air channel, and a fan is arranged in the air channel; the outlet of the upper chamber faces the feed inlet of the upper hopper, and the inlet of the lower chamber is communicated with the feed inlet of the lower hopper; the fan works, and a circulating air chamber is formed by a feeding hole of the lower hopper, the lower chamber, the air channel, the upper chamber and the feeding hole of the upper hopper. The utility model has the advantages of simple and reasonable structure, it is easy to manufacture, provides the independent circulation air chamber work of many branches, solves the problem of the shutdown work that breaks down, and circulation air chamber's dust suppression structure solves the material and leaks, the dust is raised, environmental pollution scheduling problem.

Description

Can improve hopper of dustproof efficiency

Technical Field

The utility model relates to a hopper structure is a circulating dust suppression funnel that is used for place such as harbour to load and unload materials such as grain in bulk, specifically is a can improve dustproof efficiency's hopper.

Background

In order to accelerate the loading and transporting speed and save the cost, the technology of 'four scattering' is adopted, namely the technology of bulk loading, bulk transportation, bulk unloading and bulk storage. During marine transportation, bulk grains are usually transported after being directly loaded on a ship, and are unloaded onto a truck in a bulk unloading mode after arriving at a destination port, and then are transported to a granary by the truck. In bulk unloading, the grain is typically grabbed from the ship by a large grab bucket, and the grabbed grain is then dumped into a large hopper, where the grain is automatically moved to the underlying transport equipment.

In order to select the optimal loading and unloading position according to the changes of the ship parking position, the truck parking position, the site environment and the like, the used funnel is usually a movable funnel for unloading materials such as grains and the like, a large amount of dust is generated in the unloading process, so that the environment is polluted, and the dust in the whole loading and unloading area is diffused in serious cases.

How to effectively control dust is a difficult problem in the industry. The funnel in the prior art adopts a public air path system, when a fault occurs, the whole machine needs to be stopped and overhauled, the working efficiency is reduced, and no improvement is made in the aspect of dust removal.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the not enough of above-mentioned prior art, provide a can improve dustproof efficiency's hopper to solve dust, environment and cause the pollution scheduling problem.

The technical scheme of the utility model as follows:

the utility model aims at providing a hopper capable of improving the dustproof efficiency, which is characterized by comprising a frame body positioned below a grab bucket and a hopper arranged on the frame body, wherein the hopper comprises a feeding hopper and a discharging hopper, the feeding hopper is positioned above the discharging hopper, a discharging port at the bottom of the feeding hopper is provided with a dust-avoiding loose leaf, and the frame body is provided with a circulating air chamber;

the circulating air chamber comprises an air channel, an upper cavity and a lower cavity which are arranged at two ends of the air channel, and a fan is arranged in the air channel; the outlet of the upper chamber faces the feed inlet of the upper hopper, and the inlet of the lower chamber is communicated with the feed inlet of the lower hopper; the fan works, and a circulating air chamber is formed by a feeding hole of the lower hopper, the lower chamber, the air channel, the upper chamber and the feeding hole of the upper hopper.

Furthermore, a dust removal cloth bag is arranged at the bottom of the lower cavity and is supported and fixed at a feed inlet of the discharging hopper by a steel reinforcement framework.

Furthermore, a middle chamber serving as an air storage tank is arranged between the lower chamber and the upper chamber, an air inlet of the middle chamber is supplied with air by an air compressor, and an air outlet of the middle chamber is communicated with the lower chamber and is controlled to be opened and closed by a pulse electromagnetic valve; the middle chamber intermittently feeds gas into the lower chamber through the pulse solenoid valve, so that the dust removal cloth bag at the bottom of the lower chamber intermittently shakes, and materials and dust intercepted by the dust removal cloth bag are shaken down into the blanking hopper.

Furthermore, a plurality of small air suction openings are uniformly distributed on the side wall of the feeding hopper.

Furthermore, a plurality of inclined baffles are arranged at the outlet of the upper chamber, and are parallel from top to bottom and obliquely arranged, so that the outlet direction of the upper chamber is downward inclined and faces the feed inlet of the feeding hopper.

Furthermore, a movable upper cover is arranged at the feeding hole of the feeding hopper, the movable upper cover is of a split structure, and the upper surface of the movable upper cover is a slope surface inclined from the middle to the edge.

Furthermore, the bottom of the frame body is provided with a movable walking device.

Furthermore, the four groups of circulating air chambers are uniformly arranged on the periphery of the frame body; each upper chamber, the middle chamber and the lower chamber are arranged along the length direction of the corresponding hopper side edge.

The utility model discloses the hopper is when using:

1) the grab bucket is in a working material feeding state, the material is moved to a material inlet of the feeding hopper, the bottom of the grab bucket is ensured to enter the feeding hopper, and the material falls to the discharging hopper through the dust-avoiding loose leaf by the self gravity;

2) the middle chamber of each circulating air chamber is used as an air storage tank for storing stable and sufficient gas for the pulse electromagnetic valve, and the gas is intermittently fed into the lower chamber under the action of pulse force, so that the dust removal cloth bag shakes, the materials and dust intercepted on the dust removal cloth bag are effectively removed, and the materials and the dust are knocked down into the blanking hopper;

meanwhile, materials and dust raised by the lower hopper are adsorbed on a plurality of groups of dust removing cloth bags, the fan of each circulating air chamber is opened, the inlet of the fan is connected with the lower chamber, the outlet of the fan reaches the upper chamber, the materials and the dust enter the upper hopper through a plurality of groups of downward inclined outlets formed in the upper chamber, and the plurality of groups of downward inclined outlets are angled towards the downward flow direction of the materials to form a downward pressure type airflow; the air sucked from the dust removal cloth bag of the lower cavity is mixed with materials and dust, passes through the air duct to the upper cavity, falls back into the upper hopper, and flows into the lower hopper through the dust-avoiding hinge along with the material flow, so that a circulating air chamber is formed;

3) the bottom of the grab bucket enters the feeding hopper, so that the leakage of materials and dust at the top of a feeding hole of the feeding hopper can be prevented; the outlet of the upper chamber faces the feeding hole of the feeding hopper, and the inclined baffles enable the outlet of the upper chamber to incline downwards and face the feeding hole of the feeding hopper to form downward-pressing airflow, so that materials and dust thrown around the grab bucket can be pressed downwards and sent into the feeding hopper; the feeding hopper is quickly sucked in through a plurality of small air suction openings uniformly distributed on the side wall of the feeding hopper.

The utility model has the advantages as follows:

1) the circulating air path (circulating air chamber) control system can effectively suppress dust and effectively control environmental pollution;

2) the air conditioner is provided with a plurality of independent circulating air chambers and a power source, and even if one of the independent circulating air chambers is damaged, the other circulating air chambers are not stopped, so that the working efficiency is improved;

3) the middle chamber is arranged in the independent circulating air chamber, so that an external air storage tank is avoided, the appearance is attractive, and materials are saved;

4) the upper cover is moved in an opposite-opening mode, so that the operation is convenient, and the mechanical or electric control can be adopted; the slope structure of the upper cover is moved, so that rainwater accumulation is effectively prevented, equipment is prevented from being rusted, and the service life is prolonged;

5) the bottom of the frame body can be provided with a movable walking device, so that the problem of limited stop is solved;

6) be different from the structure of big inlet scoop is concentrated to prior art, the utility model discloses at a plurality of little inlet scoops of lateral wall evenly distributed of feeding funnel, the material of throwing away, dust distribute more evenly, the better work of the circulation air chamber of being convenient for.

The utility model has the advantages of simple and reasonable structure, it is easy to manufacture, provides the independent circulation air chamber work of many branches, solves the problem of the shutdown work that breaks down, and circulation air chamber's dust suppression structure solves the material and leaks, the dust is raised, environmental pollution scheduling problem.

Drawings

Fig. 1 is a front view of the hopper of the present invention (the grab bucket is in an open working state);

fig. 2 is a left side view (including a gas circuit circulation principle diagram) of the hopper of the present invention;

fig. 3 is a left side view (enlarged view of the air path system) of the hopper of the present invention;

fig. 4 is a top view of the hopper of the present invention;

FIG. 5 is an enlarged view of the working schematic of the middle chamber of the present invention;

in the figure: the dust-proof device comprises a frame body 1, an upper hopper 2, a lower hopper 3, a dust-proof hinge 4, an air duct 5, an upper chamber 6, a lower chamber 7, a fan 8, a dust-removing cloth bag 9, a middle chamber 10, a pulse electromagnetic valve 11, a small air suction opening 12, an inclined baffle 13, a movable upper cover 14, a grab bucket 15, an independent circulating air chamber 16 and an air pipe 17 of the pulse electromagnetic valve.

Detailed Description

As shown in fig. 1, the grab bucket 15 is in a working emptying state (the bottom of the grab bucket enters the upper hopper 2), a large amount of materials are thrown to the upper hopper, the materials fall to the lower hopper 3 through the dust-avoiding loose leaf 4 by the self gravity, and meanwhile, part of the materials and dust are lifted due to throwing force. The circulating dust suppression funnel is in a working state, 4 independent fans are turned on to drive respective circulating air chambers, and the circulating dust suppression funnel is in a working state.

As shown in FIG. 4, the circulating dust suppression hopper is provided with 4 independent circulating air chambers 16 which are respectively arranged along the length direction of four sides of the hopper. Each closed independent air chamber is divided into an upper chamber 6, a middle chamber 10 and a lower chamber 7. Each independent air chamber is provided with a plurality of groups of pulse electromagnetic valves 11, the air inlet of the middle chamber is supplied with air by an air compressor, the air outlet of the middle chamber is communicated with the lower chamber and is controlled to be opened and closed by the pulse electromagnetic valves, the middle chamber of each air chamber is used as an air storage tank of each area and stores stable and sufficient air for the pulse electromagnetic valves, and under the action of pulse force, dust and materials of the cloth bag are effectively removed and fall into the lower hopper.

Each independent air chamber air path circulates as shown in fig. 3, a fan 8 is opened, a fan inlet is connected to a lower chamber, the air reaches an upper chamber of a circulating dust suppression funnel to a fan outlet, a plurality of groups of air outlets are formed in the upper chamber and enter an upper hopper of the circulating dust suppression funnel, the set air outlets are angled towards the downward flow direction of materials to form a downward-pressing type air flow, the thrown materials and dust are effectively pressed downwards, the dust suppression at different angles is met when the plurality of groups work simultaneously, the dust is suppressed from falling back into the upper hopper, and the materials flow to the lower hopper through dust-avoiding lotus leaves. The dust of hopper adsorbs on multiunit dust removal sack down, and cavity under the last mouthful of access of dust removal sack, cavity to fan entry under, from the inspiratory air of sack, thoughtlessly has material, dust, through the supreme cavity of fan, to the hopper, forms the circulated air like this and uses, thoughtlessly has material, dust in the air, through the circulated air, effectively prevents that the dust from leaking.

As shown in figure 5, the dust is adsorbed on the outer surface of the dust removal cloth bag, and the dust on the surface of the cloth bag is knocked down to the blanking hopper through the pulse electromagnetic valve 11 and the air pipe 17 of the pulse electromagnetic valve to pulse the orderly impact air. The split type movable upper cover is convenient to operate and can be controlled mechanically or electrically. The slope design of the upper cover can effectively prevent rainwater from gathering and equipment from being rusted, and the service life is prolonged. The bottom of the frame body 1 can be provided with a movable walking device, so that the problem of limited stop is solved.

Claims

1. A hopper capable of improving dustproof efficiency is characterized by comprising a frame body (1) positioned below a grab bucket and a hopper arranged on the frame body, wherein the hopper comprises an upper hopper (2) and a lower hopper (3), the upper hopper is positioned above the lower hopper, a discharge hole at the bottom of the upper hopper is provided with a dust-avoiding loose leaf (4), and the frame body is provided with a circulating air chamber;

the circulating air chamber comprises an air channel (5), an upper chamber (6) and a lower chamber (7) which are arranged at two ends of the air channel, and a fan (8) is arranged in the air channel; the outlet of the upper chamber faces the feed inlet of the upper hopper, and the inlet of the lower chamber is communicated with the feed inlet of the lower hopper; the fan works, and a circulating air chamber is formed by a feeding hole of the lower hopper, the lower chamber, the air channel, the upper chamber and the feeding hole of the upper hopper.

2. The hopper with the dustproof efficiency as claimed in claim 1, wherein a dust removal cloth bag (9) is installed at the bottom of the lower chamber, and the dust removal cloth bag is supported and fixed at the feeding port of the lower hopper by a steel reinforcement framework.

3. The hopper capable of improving the dust-proof efficiency as claimed in claim 2, wherein a middle chamber (10) as a gas storage tank is arranged between the lower chamber and the upper chamber, the gas inlet of the middle chamber is supplied with gas by a gas compressor, and the gas outlet of the middle chamber is communicated with the lower chamber and is controlled to be opened and closed by a pulse solenoid valve (11); the middle chamber intermittently feeds gas into the lower chamber through the pulse solenoid valve, so that the dust removal cloth bag at the bottom of the lower chamber intermittently shakes, and materials and dust intercepted by the dust removal cloth bag are shaken down into the blanking hopper.

4. A hopper with improved dust control efficiency as claimed in claim 1, wherein the side wall of the hopper is uniformly distributed with a plurality of small air suction openings (12).

5. A hopper according to claim 1, wherein the outlet of the upper chamber is provided with a plurality of inclined baffles (13) which are parallel and inclined from top to bottom such that the outlet of the upper chamber is inclined downwardly towards the inlet of the hopper.

6. The hopper with the dustproof efficiency as claimed in claim 1, wherein the feeding port of the feeding hopper is provided with a movable upper cover (14), the movable upper cover is of a split structure, and the upper surface of the movable upper cover is a slope surface with an inclined middle part to an edge.

7. The hopper as claimed in claim 1, wherein the bottom of the frame body is provided with a movable traveling device.

8. The hopper as claimed in claim 3, wherein the number of the circulating air chambers is four, and the circulating air chambers are uniformly arranged around the frame body; each upper chamber, the middle chamber and the lower chamber are arranged along the length direction of the corresponding hopper side edge.