CN103991727A - Fog screen dust suppression system for round stockyard - Google Patents
Fog screen dust suppression system for round stockyard Download PDFInfo
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- CN103991727A CN103991727A CN201410220932.7A CN201410220932A CN103991727A CN 103991727 A CN103991727 A CN 103991727A CN 201410220932 A CN201410220932 A CN 201410220932A CN 103991727 A CN103991727 A CN 103991727A
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- dust suppression
- suppression system
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- circular stockyard
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Abstract
The invention discloses a fog screen dust suppression system for a round stockyard. The system comprises a main dust suppression system arranged outside the round stockyard, an annular ventilation opening fog screen device arranged at the position of an annular ventilation opening of the round stockyard, and a door fog screen device arranged at the position of a door of the round stockyard, wherein the main dust suppression system comprises a multifunctional fog generator, an electric control system, an air compressor, an air storage tank, a flow control system and a steam connection pipeline, and the electric control system is connected with a material stacking and reclaiming device of the stockyard through control signals. The fog screen dust suppression system for the round stockyard and a stacker work in a linked mode to prevent dust generated during stacking from spreading to the outside from the stockyard to pollute the environment, and the fog screen dust suppression system for the round stockyard can also act on an unloading point directly to suppress the generation of dust and has the advantages of being high in automation degree, capable of saving energy and water, easy to maintain, and low in manufacturing cost.
Description
Technical field
The present invention relates to a kind of veil dust suppression system of circular stockyard, belong to environmental technology field, can be used for the circular stockyard dust suppression of the storage bulk material of the industries such as coal, electric power, iron and steel, metallurgy, building materials, harbour, also can be used for the dust suppression in the bar shaped sealing stock ground of similar bulk material storage.
Background technology
The features such as circular stockyard is large because of its reserves, occupation of land province, good environmental protection, are widely applied at present at home.Circular stockyard is comprised of main portions such as the belt conveyer of marching into the arena, stacker reclaimer of round stock yard, appearance belt conveyer, annular barrier wall structure and rack domes.
For convenience of equipment operation, maintenance, maintenance, on annular barrier wall structure, have the gate for equipment, personnel's turnover; For guaranteeing stock ground inner air and outer air circulation, maintaining air pressure balance and explosion-proof, between annular barrier wall structure and rack dome, be provided with 360 ° of loop vent mouths, rack dome top is provided with ventilating hood, air forms free convection between lower annular vent window and top portion ventilation cover, and makes circular stockyard keep micro-vacuum state to outside.
Stacker reclaimer of round stock yard is when carrying out windrow operation, and the dust that (is up to 36m) when material height of drop is higher and produces is larger.Dust, in circular stockyard internal divergence, impacts device security and personnel health, and part dust is diffused into outdoor by loop vent mouth and gate, to outside environment.
In existing circular stockyard, almost do not take measures to prevent that the dust of circular stockyard from leaking.The measure that indivedual units take for the problems referred to above also for adding louver, gate installation rolling screen door on loop vent mouth, but this method cost is high, and because of block resistance the convective air circulation of part, and then to storehouse inner air and outer air circulation, maintain air pressure balance and explosion-proof negative effect.So actual effect is unsatisfactory, and the difficulty of secondary cleaning is high, work capacity is large.
Summary of the invention
Order of the present invention is to provide a kind of circular stockyard veil dust suppression system, it can effectively prevent that the dust that produces in windrow operation process is outdoor and to environment from being diffused in stock ground, and have advantages of that degree of automation is high, energy-saving and water-saving, maintenance is simple, cost is low.
For achieving the above object, solution of the present invention is:
A circular stockyard veil dust suppression system, this circular stockyard comprises annular barricade, be located at rack dome on annular barricade, be located at rack dome top ventilating hood, be located at gate on annular barricade, run through the curved top of rack the belt conveyer of marching into the arena, run through annular barricade appearance belt conveyer, be located at the heap feeding equipment in circular stockyard; Between annular barrier wall structure and rack dome, be provided with loop vent mouth; Wherein: this circular stockyard veil dust suppression system comprises the dust suppression system being located at outside circular stockyard, the loop vent mouth veil device that is located at circular stockyard loop vent mouth place and the gate veil device that is located at place, circular stockyard gate; Described dust suppression system comprises the multi-functional mechanical, electrical control system of mist, Air compressor, storage tank, flow control system and the aqueous vapor associated line made; Electric-control system is connected with stock ground heap feeding material equipment controling signal.
Described circular stockyard veil dust suppression system also comprises being located at piles the head atomizing cone of stocker head and the afterbody atomizing cone of stocker afterbody in feeding equipment.
Described dust suppression system also comprises electric tracer heating system, and electric tracer heating system substep is on drier, veil device and air water pipeline, when ambient temperature is used during lower than 5 °.
The described multi-functional mist machine of making is multi-functional dry fog machine or Multi-functional water fog machine.
Described loop vent mouth veil device is divided into many groups and is evenly arranged along 360 ° of loop vent mouths of circular stockyard.
Described every group of loop vent mouth veil device arranges 2 row's shower nozzles, upper row's nozzle layout of sprinkler spout on rack dome is downward, lower row's nozzle layout of sprinkler spout on annular barrier wall structure upwards, is the sector region veil wall of 15 ° of radiuses, central angle at loop vent interruption-forming circular stockyard radius during one group of loop vent mouth veil device work.
Described gate veil device arranges 3 row's shower nozzles, upper row's nozzle layout of sprinkler is downward in top, annular barrier wall structure gate spout, left bank nozzle layout of sprinkler in annular barrier wall structure gate left part spout to the right, in annular barrier wall structure gate right part spout left, in gate veil device when work, is at formation rectangular area, place, gate veil wall for right row's nozzle layout of sprinkler.
Described stocker head atomizing cone arranges 4 shower nozzles, is arranged in the stocker head discharge place of circular stockyard heap feeding equipment, directly in discharging region, forms veil during the work of stocker head atomizing cone.
Described stocker afterbody atomizing cone is established 3 shower nozzles, is arranged in the stocker afterbody transfer point material feeding section place of circular stockyard heap feeding equipment, directly in material feeding region, forms veil during the work of stocker afterbody atomizing cone.
The operation master mode of native system is: circular stockyard veil dust suppression system is connected with stacker reclaimer of round stock yard control signal, for user provides automatically and manual two kinds of operation modes.When automatic operation mode, can automatic reception by stocker Remote triggering signal enabling or stop loop vent mouth veil device, gate veil device, stocker head atomizing cone, stocker afterbody atomizing cone and work; When manual mode, operating personal can manually boot or stop loop vent mouth veil device, gate veil device, stocker head atomizing cone, the work of stocker afterbody atomizing cone.
Compared with prior art, beneficial effect of the present invention: degree of automation is high, energy-saving and water-saving, maintenance is simple, cost is low.Specifically, possess following advantage:
1, circular stockyard veil dust suppression system is connected with stacker reclaimer of round stock yard control signal, by stocker is long-range, opens, stops signal and angle position signal and trigger veil dust suppression system corresponding assembly and start or stop work;
2, according to stacker reclaimer of round stock yard state, veil dust suppression system only needs corresponding veil device group participation work, and adopts the pressurized air can low-pressure water, compares conventional dust exhaustor and can save 50% energy consumption; Droplet is ultra-fine, and water consumption is few, and after dust suppression, appropriate section material humidification approximately 0.1 ~ 0.5% only, can not bring impact to subsequent technique link;
3, without cleaning dust, there is no secondary pollution;
4, circular stockyard veil dust suppression system is simple in structure, reliability is high, maintenance workload is little, maintenance cost is low;
5, circular stockyard veil dust suppression system occupies little space, and saves factory building space, and capital expenditure is low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is circular stockyard veil example section arrangement plan of the present invention.
Wherein: 1 suppressing dust with dry mist system; 2 loop vent mouth veil devices; 3 gate veil devices; 4 head atomizing cones; 5 afterbody atomizing cones; 6 heap feeding equipment; 7 belt conveyers of marching into the arena; 8 appearance belt conveyers; 9 annular barricades; 10 rack domes; 11 stockers; 12 gates; 13 loop vent mouths; 14 ventilating hoods; 15 circular stockyards.
The specific embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Disclosed all features in this specification sheets, or the step in disclosed all methods or process, except the speciality and/or step of mutual repulsion, all can combine by any way, unless narration especially, all can be replaced by other equivalences or the alternative features with similar object,, unless narration especially, an embodiment in a series of equivalences of each feature or similar characteristics.
Embodiment 1
As shown in Figure 1, 2, the present invention has disclosed a kind of circular stockyard veil dust suppression system, this circular stockyard 15 comprises annular barricade 9, be located at rack dome 10 on annular barricade 9, be located at rack dome 10 tops ventilating hood 14, be located at gate 12 on annular barricade 9, run through the curved top 10 of rack the belt conveyer 7 of marching into the arena, run through 8 annular barricades 9 appearance belt conveyer 8, be located at the heap feeding equipment 6 in circular stockyard 15; Between annular barricade 9 structures and rack dome 10, be provided with loop vent mouth 13; Its key is: circular stockyard veil dust suppression system comprises the dust suppression system 1, the loop vent mouth veil device 2 that is located at circular stockyard 15 loop vent mouth 13 places that are located at outside circular stockyard 15, is located at circular stockyard 15 12Chu gate, gate veil devices 3, is located at the head atomizing cone 4 of stocker 11 heads and the afterbody atomizing cone 5 of stocker 11 afterbodys in heap feeding equipment 6.
Described dust suppression system 1 comprises multi-functional mist machine a, electric-control system b, Air compressor c, storage tank d, flow control system e, aqueous vapor associated line f, the electric tracer heating system etc. made.The multi-functional mist machine a that makes filters out suspended matter in the water at external water source to reach the standard that veil device requires use, and it has gathered all filters, battery control valve, blowing pipeline valve and pressure sensor.Gas, water after filtering, are controlled electromagnetic valve and are opened or closed with pressure, the flow follow procedure set, through pipeline, are transported to veil device, realize spray dust-arrest.Electric-control system b is the control center of dry fog machine dust suppression system 1, it is connected with circular stockyard heap feeding equipment 6 control signals, automatic reception, by stocker 11 remote job signals, attitude signal, triggers dry fog machine dust suppression system 1 and starts or stops loop vent mouth veil device 2, gate veil device 3, stocker head atomizing cone 4,5 work of stocker afterbody atomizing cone.Air compressor c provides standard source of the gas for dry fog machine dust suppression system 1.The effect of storage tank d is the pressurized air that pre-stored Air compressor c discharges, and when the free air capacity of Air compressor c can not meet dry fog machine a instantaneous displacement and requires, provides the instantaneous gas consumption of drier a.Electric tracer heating system g substep is on drier a, veil device and air water pipeline, when ambient temperature is used during lower than 5 °.
This multi-functional mist machine of making can be multi-functional dry fog machine or Multi-functional water fog machine.
As saving cost mode, micron order dry fog machine can be replaced by water smoke device.
Described loop vent mouth veil device 2 can be divided into many groups and be evenly arranged along 360 ° of loop vent mouths 13 of circular stockyard, and this embodiment arranges 24 groups, and each veil device 2 can independently open, the row of stopping transport.Every group of loop vent mouth veil device 2 can arrange 2 row's shower nozzles, upper row's nozzle layout of sprinkler spout on rack dome 10 is downward, lower row's nozzle layout of sprinkler spout on annular barricade 9 upwards, is the sector region veil wall of 15 ° of radiuses, central angle at loop vent interruption-forming circular stockyard radius during one group of loop vent mouth veil device 2 work.At loop vent mouth 13, form veils, prevent dust at loop vent mouth 13 to outdoor escape.
Described gate veil device 3 can be established 3 row's shower nozzles, upper row's nozzle layout of sprinkler is downward in annular barrier wall structure gate 12 top spouts, left bank nozzle layout of sprinkler in annular barrier wall structure gate 12 left part spouts to the right, right row's nozzle layout of sprinkler in annular barrier wall structure gate 12 right part spouts left, during gate veil device 3 work at formation rectangular area, place, gate veil wall.For forming veil at place, gate, prevent dust at gate to outdoor escape.
Described stocker head atomizing cone 4 can arrange 4 shower nozzles, is arranged in the stocker 11 head discharge places of circular stockyard heap feeding equipment, directly in discharging region, forms veil during 4 work of stocker head atomizing cone.Described stocker head atomizing cone 4, for forming veil in discharging surrounding, is suppressed at product dirt pits by dust.
Described stocker afterbody atomizing cone 5 can be established 3 shower nozzles, is arranged in the stocker afterbody transfer point material feeding section place of circular stockyard heap feeding equipment, directly in material feeding region, forms veil during 5 work of stocker afterbody atomizing cone.For forming veil in material feeding place, the dust that suppresses this transfer point produces.
When stacker reclaimer of round stock yard equipment 6 carries out windrow operation, dry fog machine dust suppression system 1 receives the working signal of stocker 11, its electric-control system b triggers stocker 11 head atomizing cones 4 and stocker 11 afterbody atomizing cone 5 work, material feeding place and discharging place at stocker 11 form respectively veil, and the dust that suppresses stocker material feeding point and emptying point produces; Electric-control system b is simultaneously according to the position signal of stocker 11, according to many groups loop vent mouth veil device 2 work of a group of the procedure triggers relevant position of setting or close position, forms the veil wall of certain areas at loop vent mouth 13, suppresses dust and leaks; When stocker 11 control positioies arrive or approach place, circular stockyard gate, electric-control system b, according to procedure triggers gate veil device 3 work of setting, forms veil wall at place, gate, suppress dust and leak.Loop vent mouth veil device group 2 and gate veil device 3 follow that stocker 11 sends close on or away from corresponding the starting or stoping of position signal.User can be arranged and be revised veil device working group, spray cycles etc. by PLC.
The present invention makes mist dust suppression principle: the probability that adsorbs, filters, condenses when water fog particle is close with dust granules size is maximum.When single air-flow containing grit is walked around droplet, it is relevant with the diameter of droplet that droplet catches in air-flow the probability of grit.When droplet is large, grit is only along with air-flow is walked around droplet and at large catching.When droplet is close with grit footpath, is easier to bump against and catches grit.Micron order dry fog applies just this principle and produces below 5 μ m, and the droplet close with ultra-fine dust size effectively catches dust.Because droplet is trickle, part droplet can be in air evaporation rapidly, make the relative humidity in local space saturated rapidly, the steam after saturated can be take grit as core cohesion, grit diameter is constantly increased, until fall.
As further saving cost mode, southern user can cancel the electric tracer heating system of making in mist dust suppression system 1.
As further saving cost mode, also can cancel stocker 11 head atomizing cones 4 and stocker 11 afterbody atomizing cones 5.
The foregoing is only the preferred embodiment of this method, not in order to limit this method, any modification of doing within all spirit in this method and principle, be equal to and replace and improvement etc., within all should being included in the protection domain of this method.
Claims (9)
1. a circular stockyard veil dust suppression system, this circular stockyard comprises annular barricade, be located at rack dome on annular barricade, be located at rack dome top ventilating hood, be located at gate on annular barricade, run through the curved top of rack the belt conveyer of marching into the arena, run through annular barricade appearance belt conveyer, be located at the heap feeding equipment in circular stockyard; Between annular barrier wall structure and rack dome, be provided with loop vent mouth; It is characterized in that: this circular stockyard veil dust suppression system comprises the dust suppression system being located at outside circular stockyard, the loop vent mouth veil device that is located at circular stockyard loop vent mouth place and the gate veil device that is located at place, circular stockyard gate; Described dust suppression system comprises the multi-functional mechanical, electrical control system of mist, Air compressor, storage tank, flow control system and the aqueous vapor associated line made; Electric-control system is connected with stock ground heap feeding material equipment controling signal.
2. circular stockyard veil dust suppression system as claimed in claim 1, is characterized in that: described circular stockyard veil dust suppression system also comprises being located at piles the head atomizing cone of stocker head and the afterbody atomizing cone of stocker afterbody in feeding equipment.
3. circular stockyard veil dust suppression system as claimed in claim 1 or 2, is characterized in that: described dust suppression system also comprises electric tracer heating system, and electric tracer heating system substep is on drier, veil device and air water pipeline, when ambient temperature is used during lower than 5 °.
4. circular stockyard veil dust suppression system as claimed in claim 1, is characterized in that: the described multi-functional mist machine of making is multi-functional dry fog machine or Multi-functional water fog machine.
5. circular stockyard veil dust suppression system as claimed in claim 1, is characterized in that: described loop vent mouth veil device is divided into many groups and is evenly arranged along 360 ° of loop vent mouths of circular stockyard.
6. the circular stockyard veil dust suppression system as described in claim 1 or 5, it is characterized in that: described every group of loop vent mouth veil device arranges 2 row's shower nozzles, upper row's nozzle layout of sprinkler spout on rack dome is downward, lower row's nozzle layout of sprinkler spout on annular barrier wall structure upwards, is the sector region veil wall of 15 ° of radiuses, central angle at loop vent interruption-forming circular stockyard radius during one group of loop vent mouth veil device work.
7. circular stockyard veil dust suppression system as claimed in claim 1, it is characterized in that: described gate veil device arranges 3 row's shower nozzles, upper row's nozzle layout of sprinkler is downward in top, annular barrier wall structure gate spout, left bank nozzle layout of sprinkler in annular barrier wall structure gate left part spout to the right, in annular barrier wall structure gate right part spout left, in gate veil device when work, is at formation rectangular area, place, gate veil wall for right row's nozzle layout of sprinkler.
8. circular stockyard veil dust suppression system as claimed in claim 2, it is characterized in that: described stocker head atomizing cone arranges 4 shower nozzles, be arranged in the stocker head discharge place of circular stockyard heap feeding equipment, during the work of stocker head atomizing cone, directly in discharging region, form veil.
9. circular stockyard veil dust suppression system as claimed in claim 2, it is characterized in that: described stocker afterbody atomizing cone is established 3 shower nozzles, be arranged in the stocker afterbody transfer point material feeding section place of circular stockyard heap feeding equipment, during the work of stocker afterbody atomizing cone, directly in material feeding region, form veil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410220932.7A CN103991727B (en) | 2014-05-23 | 2014-05-23 | Circular stockyard veil dust suppression system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410220932.7A CN103991727B (en) | 2014-05-23 | 2014-05-23 | Circular stockyard veil dust suppression system |
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| CN103991727A true CN103991727A (en) | 2014-08-20 |
| CN103991727B CN103991727B (en) | 2016-05-25 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105771495A (en) * | 2016-04-28 | 2016-07-20 | 中冶北方（大连）工程技术有限公司 | Micron-level dust suppression device for primary mixing chamber in sintering |
| CN106678985A (en) * | 2017-02-28 | 2017-05-17 | 中国国电集团公司谏壁发电厂 | Fresh air system |
| CN108263876A (en) * | 2017-12-27 | 2018-07-10 | 中钢集团天澄环保科技股份有限公司 | A kind of dust suppression system in round sealed stock ground |
| CN108298338A (en) * | 2017-12-27 | 2018-07-20 | 中钢集团天澄环保科技股份有限公司 | A kind of stock ground film closing synthesis dust prevention system |
| CN114275567A (en) * | 2022-01-06 | 2022-04-05 | 中冶北方（大连）工程技术有限公司 | C-type stock ground intelligent spraying control system and method |
| CN114904353A (en) * | 2022-05-31 | 2022-08-16 | 北京国电富通科技发展有限责任公司 | Material dust suppression system |
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| DE2335861A1 (en) * | 1973-07-14 | 1975-01-30 | Buehler Miag Gmbh | Silo storage of cement clinker - spraying with high pressure water on entry to obtain required consistency |
| CN201137316Y (en) * | 2007-12-04 | 2008-10-22 | 中国电力建设工程咨询公司 | Spherical shape coal field |
| CN103640832A (en) * | 2013-12-12 | 2014-03-19 | 中冶赛迪工程技术股份有限公司 | Material storage device of storage yard and closed storage yard |
| CN203889695U (en) * | 2014-05-23 | 2014-10-22 | 蒲亚舒 | Fog screen dust suppression system for circular stockyard |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE2335861A1 (en) * | 1973-07-14 | 1975-01-30 | Buehler Miag Gmbh | Silo storage of cement clinker - spraying with high pressure water on entry to obtain required consistency |
| CN201137316Y (en) * | 2007-12-04 | 2008-10-22 | 中国电力建设工程咨询公司 | Spherical shape coal field |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105771495A (en) * | 2016-04-28 | 2016-07-20 | 中冶北方（大连）工程技术有限公司 | Micron-level dust suppression device for primary mixing chamber in sintering |
| CN106678985A (en) * | 2017-02-28 | 2017-05-17 | 中国国电集团公司谏壁发电厂 | Fresh air system |
| CN108263876A (en) * | 2017-12-27 | 2018-07-10 | 中钢集团天澄环保科技股份有限公司 | A kind of dust suppression system in round sealed stock ground |
| CN108298338A (en) * | 2017-12-27 | 2018-07-20 | 中钢集团天澄环保科技股份有限公司 | A kind of stock ground film closing synthesis dust prevention system |
| CN114275567A (en) * | 2022-01-06 | 2022-04-05 | 中冶北方（大连）工程技术有限公司 | C-type stock ground intelligent spraying control system and method |
| CN114904353A (en) * | 2022-05-31 | 2022-08-16 | 北京国电富通科技发展有限责任公司 | Material dust suppression system |
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