CN102874614A - Dust suppressing and falling system of dumper for dumping high-dust materials - Google Patents

Dust suppressing and falling system of dumper for dumping high-dust materials Download PDF

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Publication number
CN102874614A
CN102874614A CN 201210404594 CN201210404594A CN102874614A CN 102874614 A CN102874614 A CN 102874614A CN 201210404594 CN201210404594 CN 201210404594 CN 201210404594 A CN201210404594 A CN 201210404594A CN 102874614 A CN102874614 A CN 102874614A
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CN
China
Prior art keywords
dust
micron order
tipper
spraying nozzle
order spraying
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Pending
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CN 201210404594
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Chinese (zh)
Inventor
万永贵
乔万谋
慕喜典
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DATANG GANSU POWER GENERATION Co Ltd
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DATANG GANSU POWER GENERATION Co Ltd
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Priority to CN 201210404594 priority Critical patent/CN102874614A/en
Publication of CN102874614A publication Critical patent/CN102874614A/en
Pending legal-status Critical Current

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Abstract

A dust suppressing and falling system of a dumper for dumping high-dust materials comprises a drum-shaped blocking device, a plurality of groups of micron-sized spray nozzles, a water pump, a plurality of electromagnetic valves and a control system, wherein one end of the blocking device is fixed around a material receiving grate while the other end of the blocking device is close to the dumper by extending so that an upper space of the material receiving grate forms a semi-enclosed structure; the micron-sized spray nozzles in the groups are arranged along the length and the width directions of the dumper and at different heights and face the raise dust direction; the water pump is connected with the micron-sized spray nozzles in groups through pipelines and used for supplying water to the micron-sized spray nozzles in the groups; the electromagnetic valves are arranged among the micron-sized spray nozzles in the groups and the water pump and used for controlling the micron-sized spray nozzles; and the control system is connected with the electromagnetic valves and the water pump and used for receiving control signals to control operation of the electromagnetic valves and the water pump. The dust suppressing and falling system can greatly decrease dust pollution of a dumper room, and hand sweeping workload and labor cost are reduced.

Description

The dust suppression dust falling system of the high particulate dust of tipper dumping
Technical field
The present invention relates to a kind of dust falling system, relate in particular to a kind of dust suppression dust falling system that is applicable to the high particulate dust of tipper dumping of thermal power plant.
Background technology
In thermal power generation corporations, the fuel elimination of dust contamination that produces in the process of unloading is a difficult problem always, especially high particulate dust, Xinjiang Guang Hui coal for example, Xinjiang Guang Hui coal belongs to a kind of of aforementioned particulate dust, and it belongs to brown coal, is the coal that Chinese Guanghui Stocks Trading Co. limited energy company produces in the Xinjiang, China area, dust content is large, produces especially a large amount of dust when unloading.Tipper is one of thermal power plant's dumping material equipment commonly used, in the unloading car dumper process, material falls into hopper by tipper material feeding double-edged fine-toothed comb, because the instantaneous air that displaces produces blast air, coal charge a large amount of dust of under the effect of blast air, kicking up, overflow the gap around the double-edged fine-toothed comb of hopper top, fill the air whole material feeding double-edged fine-toothed comb layer, after car dumper operation stopped, material feeding double-edged fine-toothed comb layer dust continued to overflow, and greatly delayed dust and filled the air process and dust settling time.
Tipper produces a large amount of dust in dumping material process major cause is: one, and tipper is started working, and when the compartment tilted to certain angle, materials in carriage surpasses angle of repose to begin to slide in the compartment, and storeroom collides mutually, produces a large amount of dust.Along with the compartment anglec of rotation continues to increase, upper materials begins to skid off the compartment, and lower floor's material surpasses successively angle of repose and in succession produces slip, produces about 10~15 seconds of dirt time continuously in the compartment.Two, material constantly skids off the compartment with the compartment rotation, falls to tipper material feeding double-edged fine-toothed comb.Material collides when falling and falling into double-edged fine-toothed comb mutually, produces a large amount of dust; Simultaneously, the induced draft that is subjected to material to fall to producing affects, and dust disperses with induced draft, and airborne dust occurs.Three, material falls into hopper by tipper material feeding double-edged fine-toothed comb, because the instantaneous air that displaces produces blast air, material a large amount of dust of under the effect of blast air, kicking up, overflow gap around the double-edged fine-toothed comb of hopper top, and this reason is to cause unloading car dumper material pond, be subjected to double-edged fine-toothed comb layer merely and even whole car dumper shed to produce the major cause of serious dust pollution.Four, car dumper shed blow tank bottom generally is provided with feeder, feeder is provided with chute to dropping material, feeder chute and bottom receiving opening can't seal fully, storeroom collides mutually during the feeder operation, material can produce a large amount of dust and disperse to the feeder layer from the gap between chute and the receiving opening in dropping process, and converges by levels passage and tipper material feeding double-edged fine-toothed comb layer, has increased on-the-spot dust concentration.The granularity of dust size does not wait between 0-200 μ m.
For depositing dust, dust collection method commonly used is for installing water spray system at present, water spray water droplet granularity is large, usually more than 100 μ m, with granule adsorbing powder dust weak effect, can not suppress to make its sedimentation to the granule dust in the high particulate dust comprehensively, the water spray is inhomogeneous to the material humidification, and cause humidity of materials excessive, cause the defectives such as material-transporting system equipment sizing, putty, if thermal powerplant is coal-fired, and affect combustion efficiency and the increase coal consumption that boiler was exerted oneself, reduced to Coal Pulverizing System of Thermal Power Plant.In addition, the water consumption of high pressure water spray equipment is larger, and the operating costs of sprinkling equipment is higher.
Summary of the invention
The object of the present invention is to provide the dust suppression dust falling system of the high particulate dust of a kind of tipper dumping, to solve the problem that water spray dust effect that prior art exists is limited and cause the material-transporting system defective, raise the cost.
In order to address the above problem, the invention provides the dust suppression dust falling system of the high particulate dust of a kind of tipper dumping, it comprises: plugging device, be tubular, one end be used for being fixed on the material feeding double-edged fine-toothed comb around, an end extends close to tipper, so that the upper sheaf space of material feeding double-edged fine-toothed comb forms semi-closed structure; Many group micron order spraying nozzles, each organizes described micron order spraying nozzle along the length direction setting of tipper, and each organizes described micron order spraying nozzle all towards the airborne dust direction; Water pump and is organized described micron order spraying nozzle more and is connected by pipeline, is used for supplying water to many groups of described micron order spraying nozzles; A plurality of electromagnetic valves are located at respectively between many described micron order spraying nozzles of group and the described water pump, are used for controlling described micron order spraying nozzle; Control system, with described a plurality of electromagnetic valves be connected water pump and be connected, be used for reception control signal to control the operation of described a plurality of electromagnetic valve and described water pump.
A kind of preferred implementation according to the dust suppression dust falling system of the high particulate dust of above-mentioned tipper dumping, wherein, described control system comprises: the tipper signal receiving device is used for receiving the tipper working signal, and then starts or stops the described micron order spraying nozzle spraying of many groups; Manual control device is used for starting or stoping the described micron order spraying nozzle spraying of many groups for the operating personal action button.
A kind of preferred implementation according to the dust suppression dust falling system of the high particulate dust of above-mentioned tipper dumping, wherein, described tipper is the various forms tipper, organizes described micron order spraying nozzle more and comprises: first group of described micron order spraying nozzle is positioned at the upper of tipper body; Second group of described micron order spraying nozzle is positioned at the next of tipper body; The 3rd group of described micron order spraying nozzle is positioned at the parallel position of tipper despining direction bench board; The 4th group of described micron order spraying nozzle is positioned at the secondary platform position of tipper bottom dust suppression cover; The 5th group of described micron order spraying nozzle is positioned at above the guardrail of tipper hand of rotation; The 6th group of described micron order spraying nozzle is positioned at the parallel position of tipper hand of rotation bench board.
According to a kind of preferred implementation of the dust suppression dust falling system of the high particulate dust of above-mentioned tipper dumping, wherein, described plugging device is formed by Plate Welding.
According to a kind of preferred implementation of the dust suppression dust falling system of the high particulate dust of above-mentioned tipper dumping, wherein, one or more groups described micron order spraying nozzle of each described solenoid control.
A kind of preferred implementation according to the dust suppression dust falling system of the high particulate dust of above-mentioned tipper dumping wherein, also comprises electric tracer heating system, and described electric tracer heating system is located on described water pump, micron order spraying nozzle, electromagnetic valve and the pipeline freezing to prevent.
According to a kind of preferred implementation of the dust suppression dust falling system of the high particulate dust of above-mentioned tipper dumping, wherein, described micron order spraying nozzle also is located at the end of tipper.
According to a kind of preferred implementation of the dust suppression dust falling system of the high particulate dust of above-mentioned tipper dumping, wherein, organize described micron order spraying nozzle more and be and produce the micron order spraying nozzle of water fog particle below 200 μ m.
By upper analysis, the present invention carries out shutoff with material feeding double-edged fine-toothed comb space, the dust collection that inorganization is flown away is concentrated, in semi-enclosed hopper space, adopt micron order water mist dust suppression technology, with the organized inhibition of dust of the different-grain diameter that produces in the tipper dumping material process and be deposited in semi-enclosed hopper, forbid flying away aloft, reduce aerial contamination.To greatly reduce the Rotary Dumper Room dust pollution, and improve the field activity environment, carry out production strictly in line with rules and regulations and security level in the raising scene, reduces hand sweeping work capacity and cost of labor, and the generation of stopping professional anthraco-silicosis realizes safety and benefit doulbe-sides' victory.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the sectional structure scheme drawing of the plugging device of the embodiment of the invention and material-falling hopper, tipper, Rotary Dumper Room;
Fig. 2 is control system, water pump, the electromagnetic valve of the embodiment of the invention, the connection structure scheme drawing of micron order spraying nozzle;
Fig. 3 is many groups micron order spraying nozzle of the embodiment of the invention and the position relationship scheme drawing of tipper.
The specific embodiment
Below in conjunction with accompanying drawing of the present invention (take C type tipper as example), technical scheme of the present invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Fig. 1-Fig. 3 shows control structure and the physical construction of the embodiment of the invention, as shown in the figure, the embodiment of the invention comprises plugging device 5, control system 6, water pump 7, a plurality of electromagnetic valve 631-634, organizes micron order spraying nozzle 81-86 and corresponding water pipe and signal transmission cable more.Tipper 1 is arranged in Rotary Dumper Room 10, and material feeding double-edged fine-toothed comb 4 is positioned at material-falling hopper 3 upper ends.During application, railway carriage 2 is fixed in the tipper 1, and tipper 1 drives railway carriage 2 upsets.Plugging device 5 is tubular, one end be used for being fixed on material feeding double-edged fine-toothed comb 4 around, one end extends close to the below of tipper 1, so that the upper sheaf space of material feeding double-edged fine-toothed comb 4 forms semi-closed structure, and plugging device 5 upper ends of close tipper 1 are greater than plugging device 5 lower ends near material feeding double-edged fine-toothed comb 4.Each groups among many group micron order spraying nozzle 81-86 are all along the length direction setting of tipper 1, and each organizes all towards the airborne dust direction, with to the airborne dust spray water mist.Because below 200 μ m, therefore, what present embodiment adopted is to produce the micron order spraying nozzle of water fog particle below 200 μ m to dust mostly.Water pump 7 is organized micron order spraying nozzle 81-86 by trunk line, a plurality of lateral, a plurality of electromagnetic valve 631-634 connection with more, and is used for supplying water to many groups micron order spraying nozzle 81-86.Electromagnetic valve 631-634 is located on the pipeline between micron order spraying nozzle 81-86 and the water pump 7, be used for control micron order spraying nozzle 81-86, an electromagnetic valve can only be controlled one group of micron order spraying nozzle, as shown in Figure 2, electromagnetic valve 633,634 is controlled respectively two groups of micron order spraying nozzles 85,86; An electromagnetic valve also can be controlled two or more sets micron order spraying nozzles, for example, two groups of micron order spraying nozzles 83 of electromagnetic valve 632 controls, 84, two groups of micron order spraying nozzles 81 of electromagnetic valve 631 controls, 82, as shown in Figure 3, wherein one group of micron order spraying nozzle 82 comprises again two grouping micron order spraying nozzles 821,822.Control system 6 is connected with water pump with electromagnetic valve 631-634 and is connected, and is used for reception control signal to control the operation of a plurality of electromagnetic valve 631-634 and water pump 7.
In order to increase the mode of present embodiment, be convenient to control the operational mode of present embodiment, control system 6 comprises tipper signal receiving device 61 and manual control device 62.Wherein, tipper signal receiving device 61 is used for receiving the working signal of tipper 1, and then starts or stops many group micron order spraying nozzle 81-86 spraying by electromagnetic valve 631-634.Manual control device 62 is used for for the operating personal action button, and then starts or stops many group micron order spraying nozzle 81-86 spraying by electromagnetic valve 631-634.
As shown in figures 1 and 3, when the tipper 1 that present embodiment is used be C shape tipper, organize among the micron order spraying nozzle 81-86, first group of described micron order spraying nozzle 81 is positioned at body C shape mouth upper of tipper 1 more.Second group of described micron order spraying nozzle 82 comprises two grouping micron order spraying nozzles 821,822, and the two all is positioned at body C shape mouth the next of tipper 1, so that the fan-shaped range spray water mist of Xiang Gengda.The 3rd group of described micron order spraying nozzle 83 is positioned at the parallel position of tipper 1 despining direction bench board.The 4th group of described micron order spraying nozzle 84 is positioned at the secondary platform position of tipper bottom dust suppression cover.The 5th group of described micron order spraying nozzle 85 is positioned at the guardrail top of tipper 1 hand of rotation, preferably, and 200mm above guardrail.The 6th group of described micron order spraying nozzle 86 is positioned at the parallel position of tipper 1 hand of rotation bench board.
In the present embodiment, plugging device 5 is formed by Plate Welding, but the present invention is not limited thereto.In order to use in low temperature environment, present embodiment also comprises the electric tracer heating system (not shown), and electric tracer heating system is located on the parts that easily freeze such as water pump, micron order spraying nozzle, electromagnetic valve and pipeline freezing to prevent.In addition, the micron order spraying nozzle (not shown) that also comprises the end of being located at tipper 1 of present embodiment.
To sum up, the present invention is based on aerodynamic principle: when the air-flow that contains grit was walked around droplet, it is relevant with the diameter of droplet that droplet catches the probability of grit in the air-flow.When droplet was large, grit only was to stream to walk around droplet and at large catching.When droplet was close with the grit footpath, easier dirt was lived in seizure with the grit collision.The present invention uses this principle and produces the following water smoke of 200 μ m, even the following water smoke of 10 μ m, the droplet close with fine dust size caught dust, can effectively adsorb the following dust of 200 μ m, particularly to the absorption of PM10 and the following respirable dust particle of PM2.5, thereby can fundamentally solve the pollution of respirable dust and to operating personnel's the occupational diseases such as pneumoconiosis injury.
When the high particulate dust of thermal power plant's dumping, take the C60 open-top car as example, every joint compartment raw coal nearly weighs 60 tons, the dustiness of 4-5%, and every joint compartment Dust Capacity is counted roughly 2.4-3T, and wherein the following dust of 200 μ m accounts for the 80-90% of whole dustiness.According to the 10% calculating water smoke amount of disperseing Dust Capacity, the comprehensive proportioning of spray dust reaches more than 2 to 1, adopts water smoke that dust is caught, the cohesion fine dust, and dust is washed away and suppress by certain operation pressure, thereby reach the effect of dust suppression, depositing dust.
As from the foregoing, the present invention adopts sealing to add the water mist dust suppression technology, and open space is become hemi-closure space, and amorphous dust is become organized concentrating, and implementation is enclosed and destroyed it to dust, concentrates the dirt that goes out, and has stopped the diffusion of dust in the space.Not only can catch elimination to the larger dust of particle.Can also can catch elimination to the less dust of particle, the following dust of 200 μ m be caught eliminate especially, dust suppression efficient is high.Atomizing effect is good, and water consumption is little, and is even to the material humidification, do not cause material transfer equipment sizing, putty problem.Construction technology is simple, and maintenance is little, good reliability.
The above; be the specific embodiment of the present invention only, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.

Claims (8)

1. the dust suppression dust falling system of the high particulate dust of tipper dumping is characterized in that, comprising:
Plugging device is tubular, an end be used for being fixed on the material feeding double-edged fine-toothed comb around, an end extends close to tipper, so that the upper sheaf space of material feeding double-edged fine-toothed comb forms semi-closed structure;
Many group micron order spraying nozzles, each is organized described micron order spraying nozzle and arranges respectively with Width and different height aspects along the length of tipper, and each organizes described micron order spraying nozzle all towards the airborne dust direction;
Water pump and is organized described micron order spraying nozzle more and is connected by pipeline, is used for supplying water to many groups of described micron order spraying nozzles;
A plurality of electromagnetic valves are located at respectively between many described micron order spraying nozzles of group and the described water pump, are used for controlling described micron order spraying nozzle;
Control system, with described a plurality of electromagnetic valves be connected water pump and be connected, be used for reception control signal to control the operation of described a plurality of electromagnetic valve and described water pump.
2. the dust suppression dust falling system of the high particulate dust of tipper dumping according to claim 1 is characterized in that described control system comprises:
The tipper signal receiving device is used for receiving the tipper working signal, and then starts or stops the described micron order spraying nozzle spraying of many groups;
Manual control device is used for starting or stoping the described micron order spraying nozzle spraying of many groups for the operating personal action button.
3. the dust suppression dust falling system of the high particulate dust of tipper dumping according to claim 1 is characterized in that, organizes described micron order spraying nozzle more and comprises:
First group of described micron order spraying nozzle is positioned at the upper of tipper body;
Second group of described micron order spraying nozzle is positioned at the next of tipper body;
The 3rd group of described micron order spraying nozzle is positioned at the parallel position of tipper despining direction bench board;
The 4th group of described micron order spraying nozzle is positioned at the secondary platform position of tipper bottom dust suppression cover;
The 5th group of described micron order spraying nozzle is positioned at above the guardrail of tipper hand of rotation;
The 6th group of described micron order spraying nozzle is positioned at the parallel position of tipper hand of rotation bench board.
4. the dust suppression dust falling system of the high particulate dust of tipper dumping according to claim 1 is characterized in that described plugging device is formed by Plate Welding.
5. the dust suppression dust falling system of the high particulate dust of tipper dumping according to claim 1 is characterized in that, one or more groups described micron order spraying nozzle of each described solenoid control.
6. the dust suppression dust falling system of the high particulate dust of tipper dumping according to claim 1 is characterized in that, also comprises electric tracer heating system, and described electric tracer heating system is located on described water pump, micron order spraying nozzle, electromagnetic valve and the pipeline freezing to prevent.
7. the dust suppression dust falling system of the high particulate dust of tipper dumping according to claim 1 is characterized in that described micron order spraying nozzle also is located at the end of tipper.
8. the dust suppression dust falling system of the high particulate dust of tipper dumping according to claim 1 is characterized in that, organizes described micron order spraying nozzle more and is the micron order spraying nozzle of generation water fog particle below 200 μ m.
CN 201210404594 2012-10-22 2012-10-22 Dust suppressing and falling system of dumper for dumping high-dust materials Pending CN102874614A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103950747A (en) * 2014-03-20 2014-07-30 李彬 Coal unloading and dust collection device of car dumper
CN107140859A (en) * 2017-06-30 2017-09-08 华南理工大学 A kind of pilot process and equipment that full recycled fine aggregate is prepared with building castoff
CN108246689A (en) * 2017-12-27 2018-07-06 中国神华能源股份有限公司 Material meter cleaning device, car dumper system and its discharge method of tippler
CN109850590A (en) * 2019-04-11 2019-06-07 厦门达斯自动化技术有限公司 A kind of low fugitive dust powder Tilting device and equipment
CN111362023A (en) * 2018-12-26 2020-07-03 上海嘉怡环保设备工程有限公司 High-speed water mist system for dust suppression and grid material accumulation prevention of unloading and dumping machine of dry bulk cargo conveying railway
CN113928878A (en) * 2021-11-08 2022-01-14 北京牧之科技有限公司 Intelligent cloud and mist spraying dust suppression system and method for train unloading warehouse
CN113928880A (en) * 2021-12-20 2022-01-14 华能营口热电有限责任公司 Single set of cantilever type bucket-wheel stacker dry fog dust suppression device and dust suppression system thereof

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103950747A (en) * 2014-03-20 2014-07-30 李彬 Coal unloading and dust collection device of car dumper
CN103950747B (en) * 2014-03-20 2015-07-15 李彬 Coal unloading and dust collection device of car dumper
CN107140859A (en) * 2017-06-30 2017-09-08 华南理工大学 A kind of pilot process and equipment that full recycled fine aggregate is prepared with building castoff
CN108246689A (en) * 2017-12-27 2018-07-06 中国神华能源股份有限公司 Material meter cleaning device, car dumper system and its discharge method of tippler
CN111362023A (en) * 2018-12-26 2020-07-03 上海嘉怡环保设备工程有限公司 High-speed water mist system for dust suppression and grid material accumulation prevention of unloading and dumping machine of dry bulk cargo conveying railway
CN109850590A (en) * 2019-04-11 2019-06-07 厦门达斯自动化技术有限公司 A kind of low fugitive dust powder Tilting device and equipment
CN113928878A (en) * 2021-11-08 2022-01-14 北京牧之科技有限公司 Intelligent cloud and mist spraying dust suppression system and method for train unloading warehouse
CN113928878B (en) * 2021-11-08 2022-06-17 北京牧之科技有限公司 Intelligent cloud and mist spraying dust suppression system and method for train unloading warehouse
CN113928880A (en) * 2021-12-20 2022-01-14 华能营口热电有限责任公司 Single set of cantilever type bucket-wheel stacker dry fog dust suppression device and dust suppression system thereof
CN113928880B (en) * 2021-12-20 2023-09-15 华能营口热电有限责任公司 Dry fog dust suppression device and dust suppression system of single-set cantilever bucket-wheel stacker

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Application publication date: 20130116