CN215401916U

CN215401916U - A high-efficient dust collecting equipment for ship unloaders

Info

Publication number: CN215401916U
Application number: CN202121541253.1U
Authority: CN
Inventors: 张鑫; 张华�; 钟洪玲; 陈建
Original assignee: Guoneng Longyuan Environmental Protection Co Ltd
Current assignee: Guoneng Longyuan Environmental Protection Co Ltd
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2022-01-04
Anticipated expiration: 2031-07-08

Abstract

The utility model discloses high-efficiency dust removing equipment for a ship unloader, which comprises a material conveying device and an atomizing device, wherein the unloading conveying device comprises an unloading hopper, a blanking vibrator and a guide chute from top to bottom, the atomizing device comprises a water storage tank, a water supply pump connected with the water storage tank, an air compressor, a compressed air storage tank connected with the air compressor and atomizing nozzles arranged in the material conveying device, the atomizing nozzles comprise a transverse nozzle group, a vertical nozzle group and a guide chute nozzle group, and the air compressor and the water supply pump respectively convey compressed air in the compressed air storage tank and water in the water storage tank to each atomizing nozzle through pipelines to form atomized liquid drops. The utility model forms a large amount of atomized liquid drops by arranging the atomizing device, the atomized liquid drops are effectively adsorbed with dust generated when the ship unloader unloads, and are agglomerated and continuously enlarged, and finally are settled under the action of gravity, thereby achieving the purposes of dust suppression and dust removal in the unloading process of the ship unloader.

Description

A high-efficient dust collecting equipment for ship unloaders

Technical Field

The utility model belongs to the field of environment-friendly dust removing equipment, and particularly relates to high-efficiency dust removing equipment for a ship unloader.

Background

In the unloading operation of the ship unloader, a dust source is mainly dust generated when dozens of tons of materials fall into a hopper of the ship unloader freely under the influence of gravity after a grab bucket is opened, and one reason for generating dust flying is friction between air and the falling materials, so that the dust flies outwards under the action of the air to cause dusting; secondly, along with the falling of a large amount of materials, the materials simultaneously carry a large amount of air to enter the hopper, the bottom space of the hopper is extruded by the air, instant air flow larger than 10m/s is generated in the hopper, a large positive pressure environment is generated in the hopper, air flow opposite to the falling direction is formed, and therefore a certain upward thrust is generated on material particles. The particles with small mass and density are entrained and suspended in the air and diffuse outwards, and the surrounding environment is polluted under the action of wind.

The dust removal equipment of the existing ship unloader adopts water spray dust removal, negative pressure dust removal and dry fog dust removal, wherein the water spray dust removal is realized by additionally arranging nozzles on the periphery of the wind shielding wall of a hopper to spray water to press dust to overflow the hopper, but the caking property of materials is enhanced, the material blockage at the outlet of the hopper is often caused, and the material quality and the service life of a discharging device are influenced; in the negative pressure dust removal, a fan and a dust collection box are additionally arranged on the outer side of a hopper, a dust collection port is formed in the wall of the hopper or a wind shield wall, and dust recovery resources are sucked, but the negative pressure dust removal has undesirable effects because a dust collection area is too large and the dust raising speed is too high; the dry fog dust removal is to utilize fine water fog particles (fog with the diameter of less than 10 mu m is called dry fog) with the diameter of less than 10 mu m generated by a dry fog sprayer to lead the dust particles to be mutually bonded and coalesced and to be increased and to be settled under the action of self gravity, but the dry fog particles are blown away under the condition of the wind speed of 3m/s because the dry fog particles are too small, thereby not achieving the effect of dust removal.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide high-efficiency dust removing equipment for a ship unloader, which aims to solve the problems of poor dust removing effect and environmental pollution caused by dust leakage in the unloading operation of the ship unloader in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

a high-efficiency dust removing device for a ship unloader comprises a material transmission device and an atomization device, wherein the material transmission device comprises a discharge hopper, a blanking vibrator and a guide chute from top to bottom; the discharge hopper is fixedly arranged at the bottom of the feed hopper and is of a funnel structure, the atomizing device comprises a water storage tank, a water supply pump, an air compressor, a compressed air storage tank and an atomizing nozzle, the water supply pump and the air compressor are connected with the water storage tank through water pipes, the compressed air storage tank is connected with the air compressor through an air supply pipe, the atomizing nozzle is arranged in the material conveying device and comprises a transverse nozzle group, a vertical nozzle group and a guide chute nozzle group, and the transverse nozzle group is symmetrically arranged on a fixing plate on the front side and the rear side; the vertical nozzle group is arranged on the left and/or right fixing plate; the guide chute nozzle group is arranged at the front end and/or the rear end plate of the guide chute; the air compressor and the water supply pump respectively send the compressed air in the compressed air storage tank and the water in the water storage tank to each atomizing nozzle through the main pipe and the branch pipe to form atomized liquid drops.

Further, the lateral nozzle groups include a first layer of nozzle groups and a second layer of nozzle groups.

Furthermore, the vertical nozzle groups are arranged in two rows and are symmetrically arranged on two vertical side edges of the feeding side fixing plate respectively.

Furthermore, the guide chute nozzle group comprises a guide chute front end nozzle group and a guide chute rear end nozzle group, the guide chute front end nozzle group and the guide chute rear end nozzle group are respectively provided with a group, and the groups are respectively perpendicular to the axis of the guide chute and are arranged at the tops of the front end and the rear end of the guide chute.

Further, the first layer of nozzle groups are obliquely downwards sprayed, the spraying angle is deviated from the vertical direction by 45 degrees, the second layer of nozzle groups are obliquely downwards sprayed, and the spraying angle is deviated from the vertical direction by 75 degrees;

furthermore, two rows of nozzles of the vertical nozzle group are arranged oppositely, and the included angle between the spraying angle and the plane where the feeding side fixing plate is located is 70-80 degrees;

furthermore, the nozzles of the nozzle group at the front end of the material guide chute and the nozzles of the nozzle group at the rear end of the material guide chute are respectively arranged in the material guide chute and obliquely spray downwards, and the spraying angle is deviated from the vertical direction by 30-60 degrees.

Furthermore, rubber dust-blocking curtains are respectively arranged at the joint of the bottom of the discharge hopper and the blanking vibrator and at the front end and the rear end of the guide chute.

Furthermore, the nozzles of the transverse nozzle group, the vertical nozzle group and the guide chute nozzle group are uniformly distributed.

Furthermore, the water delivery pipe is provided with a precise pore plate capable of adjusting the flow rate; the air feed pipe is provided with a gas measuring pressure regulating valve.

The utility model has the following beneficial effects:

1. the utility model provides high-efficiency dust removal equipment for a ship unloader, which is characterized in that a large amount of atomized liquid drops are formed by arranging an atomization device, the atomized liquid drops and dust generated during unloading of the ship unloader are effectively adsorbed and agglomerated into a mass, the mass is continuously increased, and finally the mass is settled under the action of gravity, so that the purposes of dust suppression and dust removal in the unloading process of the ship unloader are achieved.

2. According to the high-efficiency dust removing equipment for the ship unloader, rubber dust blocking curtains are arranged at the interface of the bottom of the discharging hopper and the blanking vibrator and at the front end and the rear end of the guide chute to form a relatively closed material conveying space, so that dust is effectively prevented from leaking to the external environment through a joint seam during blanking.

3. According to the high-efficiency dust removal equipment for the ship unloader, the flow and the pressure of water and compressed air are adjusted by adjusting the flow of the water conveying pipe and the pressure of the air conveying pipe, so that the fineness and the flow of atomized liquid drops can be adjusted by several times or even ten times, the fineness and the flow of the atomized liquid drops are adjusted according to different operation conditions, the atomized liquid drops are combined with dust more fully, and the dust removal effect is better.

4. The high-efficiency dust removing equipment for the ship unloader provided by the utility model has the advantages that material adhesion is avoided in the dust removing work, the subsequent material conveying is not influenced, the working pressure of the equipment is reduced, the service life is prolonged, meanwhile, the dust removing system can safely, environmentally and stably operate, and the dust pollution of a large area around the unloading work is effectively reduced.

Drawings

Fig. 1 is a schematic overall structure diagram of an atomizing dust suppression device of a ship unloader.

In the figure: 1-water storage tank, 2-water supply pump, 3-air compressor, 4-compressed air storage tank, 5-discharge hopper, 6-blanking vibrator, 7-material guide groove, 8-first layer nozzle group, 9-second layer nozzle group, 10-vertical nozzle group, 11-material guide groove front end nozzle group, 12-material guide groove rear end nozzle group, 13-water pipe, 14-air supply pipe, 15-header pipe, 16-horizontal branch pipe and 17-vertical branch pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, the high-efficiency dust removing device for the ship unloader provided by the utility model comprises a material transmission device and an atomization device, wherein the material transmission device comprises a discharge hopper 5, a blanking vibrator 6 and a guide chute 7 from top to bottom, the material falls from the discharge hopper 5, enters the guide chute 7 through the blanking vibrator 6 and then enters a designated position through the guide chute 7; the atomizing device comprises a water storage tank 1, a water supply pump 2 connected with the water storage tank 1 through a water conveying pipe 13, an air compressor 3, a compressed air storage tank 4 connected with the air compressor 3 through an air conveying pipe 14 and atomizing nozzles arranged in the material conveying device, the air compressor 3 and the water supply pump 2 respectively convey compressed air in the compressed air storage tank 4 and water in the water storage tank 1 to each atomizing nozzle through a header pipe 15 and a branch pipe to be mixed, the compressed air and the water are beaten for a plurality of times inside the nozzles to form a large number of atomized liquid drops with fixed particle sizes, the atomized liquid drops and dust generated when the ship unloader unloads are effectively adsorbed and coalesced into a mass, the mass is continuously increased and finally settled under the action of gravity, and the purposes of dust suppression and dust removal in the unloading process of the ship unloader are achieved.

The discharge hopper 5 comprises a feed hopper and a discharge hopper of a hopper structure, the feed hopper is formed by splicing 4 vertically arranged fixed plates, the top opening of the feed hopper forms a feed inlet, and the discharge hopper is fixedly arranged at the bottom of the feed hopper; the blanking vibrator 6 is arranged at the lower end of the discharge hopper 5 of the discharge hopper, the materials falling from the discharge hopper 5 usually have the phenomena of uneven distribution, stacking, accumulation and adhesion, the blanking vibrator 6 is arranged to prevent the phenomenon of dead halt caused by uneven feeding of a subsequent receiving device, any conventional vibration blanking device can be adopted to replace the blanking vibrator 6, so that the materials falling from the discharge hopper 5 are uniformly and continuously conveyed to the subsequent receiving device, the service life of the equipment is prolonged, a rubber dust blocking curtain is arranged at the lower end of the discharge hopper 5 and the interface of the blanking vibrator 6 to block the gap at the interface, the dust is prevented from leaking to the outside of the environment through the joint seam during blanking, and a better dustproof effect is achieved; the discharge gate below of blanking rapping device 6 is equipped with restraint material and is not toward spilling baffle box 7 that falls outward, and baffle box 7 is inside to be equipped with conveyor belt, and both ends set up rubber fender dirt curtain around and seal, reach and press down dirt effect of keeping out the wind, do not hinder simultaneously that the material passes through, can adopt any conventional guide conveyer to replace baffle box 7, make the material transportation from the blanking rapping device 6 falls to the assigned position.

The water storage tank 1 is a water tank for storing water, is connected with the water supply pump 2 through a water delivery pipe 13 and provides water sources for atomized liquid drops; the feed water pump 2 is a water pump with adjustable pressure, and the pressure adjustment mode includes, but is not limited to, adding an adjusting valve at the outlet of the feed water pump 2, and adjusting the outlet pressure of the feed water pump 2 by adjusting the opening degree of the adjusting valve; a thin pipe is led from the outlet of the water pump to the inlet of the water pump, an adjusting valve is additionally arranged on the thin pipe, and the outlet pressure of the water pump 2 is adjusted through adjusting a valve of the adjusting valve; the rotating speed of the water supply pump 2 is adjusted through a frequency converter, so that the outlet pressure of the water supply pump 2 is adjusted, and preferably, the water pipe 13 adopts a precise pore plate to control the water side pressure. The compressed air storage tank 4 is connected with the air compressor 3 through an air supply pipe 14 and provides compressed air for atomization; the air compressor 3 is used for conveying compressed air, improving the pressure of the compressed air and forming high-speed airflow, preferably, a regulating valve is arranged on the air supply pipe 14 to regulate the air pressure, the outlet pressure of the atomizing nozzle is controlled by regulating the air pressure, and electromagnetic valves are arranged on the water conveying pipe 13 and the air supply pipe 14 to realize quick opening and closing of the valve. The fineness of atomized liquid drops and the flow rate can be adjusted by adjusting the flow rate of the water conveying pipe and the pressure of the air conveying pipe, and the change can reach several times or even ten times; the atomizing nozzle is arranged in the discharge hopper 5 and the guide chute 7 and sprays atomized liquid drops into the dust overflow area of the discharge hopper 5 and the guide chute 7 which are discharging.

The atomizing nozzles comprise a transverse nozzle group, a vertical nozzle group 10 and a guide chute nozzle group, and the nozzles of the transverse nozzle group, the vertical nozzle group 10 and the guide chute nozzle group are uniformly distributed, wherein the transverse nozzle group is arranged at the top of the inner part of a fixed plate of the discharge hopper 5, the number of layers of the transverse nozzle group can be set according to the size of the discharge hopper 5, at least one layer of the transverse nozzle group is arranged, and the nozzles at the same layer are communicated with a main pipe 15 through a transverse branch pipe 16; the vertical nozzle groups 10 are arranged on the side edge in the vertical direction in the fixed plate, at least one row of the vertical nozzle groups is arranged, and the nozzles in the same row are communicated with the main pipe 15 through vertical branch pipes 17; the guide chute nozzles are arranged in the guide chute 7 in at least one row, and the nozzles in the same row are communicated with the main pipe 15 through the transverse branch pipes 16, so that dust is prevented from flying at a material conveying belt blanking port. Electromagnetic valves are respectively arranged on each transverse branch pipe 16 and each vertical branch pipe 17, and on-off control of each group of nozzle groups is achieved.

As a preferable mode, the transverse nozzle group comprises a first layer of nozzle group 8 and a second layer of nozzle group 9, the first layer of nozzle group 8 and the second layer of nozzle group 9 are sequentially arranged on the tops of the fixed plates on two sides of the fixed plate on the feeding side of the discharge hopper 5 from top to bottom, and the first layer of nozzle group 8 and the second layer of nozzle group 9 can independently operate or simultaneously operate; the vertical nozzle groups 10 are arranged in 2 rows and are respectively symmetrically arranged on two vertical side edges of the feeding side fixing plate; the guide chute nozzle group comprises a guide chute front end nozzle group 11 and a guide chute rear end nozzle group 12, the guide chute front end nozzle group 11 and the guide chute rear end nozzle group 12 are perpendicular to the axis of the guide chute 7 respectively and are arranged at the tops of the front end and the rear end of the guide chute 7, and the guide chute front end nozzle group 11 and the guide chute rear end nozzle group 12 are arranged in a group respectively.

The spray angle of the atomizing nozzle can be adjusted according to the actual operation condition. The first layer of nozzle groups 8 and the second layer of nozzle groups 9 are provided with different injection angles, the planes of the feeding hoppers of the discharging hoppers 5 are covered in a crossed mode, the first layer of nozzle groups 8 are injected downwards in an inclined mode, the injection angles are deviated from the vertical direction by 45 degrees, the second layer of nozzle groups 9 are injected downwards in an inclined mode, and the injection angles are deviated from the vertical direction by 75 degrees; two rows of nozzles of the vertical nozzle group 10 are arranged oppositely, and the included angle between the spraying angle and the plane where the feeding side fixing plate is located is 70-80 degrees, preferably 75 degrees; the nozzle directions of the guide chute front end nozzle group 11 and the guide chute rear end nozzle group 12 are set to the inside of the guide chute 7, and the nozzles are obliquely downward sprayed at a spray angle of 30 to 60 degrees, preferably 45 degrees, from the vertical direction.

The air compressor 3 and the water supply pump 2 respectively send compressed air and clean water to each atomizing nozzle through pipelines to be mixed, the atomizing nozzles are adopted to generate atomized liquid drops, micro mist is sprayed into a dust overflow area of the discharging hopper, thick micro mist is formed in a dust generation area, a large amount of dust generated in operation is wrapped in the water mist, the dust and the water mist generate inelastic collision and are absorbed by the water mist to fall, and the purposes of dust suppression and dust removal are achieved.

In the process of loading and unloading materials by the ship unloader, an air compressor and a supply water pump are turned on, compressed air in a compressed air storage tank and water in a water storage tank are respectively conveyed to each atomizing nozzle through pipelines to be mixed, the compressed air and the water are beaten for a plurality of times inside the nozzles to form a large number of atomized liquid drops with fixed particle sizes, the flow and the pressure of the water and the compressed air are adjusted by adjusting the flow of the supply water pump and the pressure of the air compressor, the fineness and the flow of the atomized liquid drops are adjusted, atomization is realized at the atomizing nozzles, a large number of atomized liquid drops with fixed particle sizes are formed, the front end and the rear end inside a discharge hopper are subjected to micro-mist coverage, and after the atomized liquid drops and dust are subjected to inelastic contact, the dust is absorbed by the water mist and is settled by gravity, and the purpose of dust suppression and dust removal is achieved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. A high-efficiency dust removing device for a ship unloader comprises a material transmission device and an atomization device, wherein the material transmission device comprises a discharge hopper (5), a blanking vibrator (6) and a guide chute (7) from top to bottom, materials fall from the discharge hopper (5) and enter the guide chute (7) through the blanking vibrator (6), the discharge hopper (5) comprises a feed hopper and a discharge hopper, the feed hopper is formed by vertically splicing fixed plates, and a feed inlet is formed by opening the top of the feed hopper; go out the hopper and set firmly in the feeder hopper bottom, for the funnel structure, its characterized in that: the atomizing device comprises a water storage tank (1), a water supply pump (2) connected with the water storage tank (1) through a water pipe (13), an air compressor (3), a compressed air storage tank (4) connected with the air compressor (3) through an air supply pipe (14), and atomizing nozzles arranged in the material conveying device, wherein the atomizing nozzles comprise a transverse nozzle group, a vertical nozzle group (10) and a guide chute nozzle group, and the transverse nozzle groups are symmetrically arranged on fixing plates on the front side and the rear side; the vertical nozzle group (10) is arranged on the left side and/or the right side fixing plate; the guide chute nozzle group is arranged at the front end and/or the rear end plate of the guide chute (7); the air compressor (3) and the water supply pump (2) respectively send compressed air in the compressed air storage tank (4) and water in the water storage tank (1) to each atomizing nozzle through the header pipe (15) and the branch pipe to form atomized liquid drops.

2. An efficient dust removing apparatus for a ship unloader according to claim 1, wherein: the lateral nozzle groups include a first layer of nozzle groups (8) and a second layer of nozzle groups (9).

3. An efficient dust removing apparatus for a ship unloader according to claim 1, wherein: the vertical nozzle groups (10) are arranged in two rows and are respectively symmetrically arranged on two vertical side edges of the feeding side fixing plate.

4. An efficient dust removing apparatus for a ship unloader according to claim 1, wherein: the guide chute nozzle group comprises a guide chute front end nozzle group (11) and a guide chute rear end nozzle group (12), the guide chute front end nozzle group (11) and the guide chute rear end nozzle group (12) are respectively provided with a group, and the top parts of the front end and the rear end of the guide chute (7) are respectively arranged on the axis perpendicular to the guide chute (7).

5. An efficient dust removing apparatus for a ship unloader according to claim 2, wherein: the first layer of nozzle groups (8) are obliquely downwards sprayed, the spraying angle deviates from the vertical direction by 45 degrees, the second layer of nozzle groups (9) are obliquely downwards sprayed, and the spraying angle deviates from the vertical direction by 75 degrees.

6. An efficient dust removing apparatus for a ship unloader according to claim 3, wherein: two rows of nozzles of the vertical nozzle group (10) are arranged oppositely, and the included angle between the spraying angle and the plane where the feeding side fixing plate is located is 70-80 degrees.

7. An efficient dust removing apparatus for a ship unloader according to claim 4, wherein: the nozzles of the guide chute front end nozzle group (11) and the guide chute rear end nozzle group (12) are respectively arranged in the guide chute (7) and obliquely downwards spray, and the spraying angle is 30-60 degrees deviated from the vertical direction.

8. An efficient dust removing apparatus for a ship unloader according to claim 1, wherein: rubber dust-blocking curtains are respectively arranged at the joint of the bottom of the discharge hopper (5) and the blanking vibrator (6) and at the front end and the rear end of the material guide groove (7).

9. An efficient dust removing apparatus for a ship unloader according to claim 1, wherein: the nozzles of the transverse nozzle group, the vertical nozzle group (10) and the guide chute nozzle group are all uniformly distributed.

10. An efficient dust removing apparatus for a ship unloader according to claim 1, wherein: the water delivery pipe (13) is provided with a precise pore plate capable of adjusting the flow; the air feed pipe (14) is provided with a gas measuring pressure regulating valve.