CN106039889A - High-pressure spray dedusting system applied to soil restoration process - Google Patents
High-pressure spray dedusting system applied to soil restoration process Download PDFInfo
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- CN106039889A CN106039889A CN201610655712.6A CN201610655712A CN106039889A CN 106039889 A CN106039889 A CN 106039889A CN 201610655712 A CN201610655712 A CN 201610655712A CN 106039889 A CN106039889 A CN 106039889A
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- water
- pressure
- pipe
- atomizer
- pelletizing system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
Abstract
The invention relates to a high-pressure spray dedusting system applied to the soil restoration process. A liquid level sensor is arranged in a water storage tank, the water storage tank is connected with a high pressure water pump through a water inlet pipe, the water inlet pipe is provided with a pressure meter, an intelligent electromagnetic flow meter and a flow regulating valve, the high pressure water pump is connected with a water spray generator through a water outlet pipe, the water spray generator is provided with a water discharging pipe, one end of the water discharging pipe is in rotating connection with the water spray generator, the other end of the water discharging pipe is a closed end, the pipe wall at two sides of the water discharging pipe is provided with a plurality of atomizing nozzles, a waste liquid collecting pipe is arranged between a crushing and screening device and a waste liquid collector, the waste liquid collector is connected with a wastewater treatment tank through a waste liquid discharging pipe, and the liquid level sensor and the intelligent electromagnetic flow meter are connected with a PLC. The system has the advantages of effective increase of the dedusting efficiency, high automatic degree, high economic and feasible property, effective improvement of the environment problem of a construction working surface, resource waste avoiding, and running cost reduction.
Description
Technical field
The present invention relates to technical field of environment protection equipment, particularly relate to a kind of high-pressure fog being applied to soil remediation process
Dust pelletizing system.
Background technology
In soil site remediation engineering, along with prosthetic appliance mechanization, the raising of automatization level, add reparation work
The intensity made and the generation amount of airborne dust, the respirable dust content simultaneously also making particle diameter be less than 7 μm significantly rises.But this
The harm of the dust of individual particle size range is maximum, shows: (1) reduces operation visibility；(2) shorten plant equipment safety and
Service life；(3) incidence rate of occupation disease is increased, especially prominent with pneumoconiosis.The release of country's PM2.5 standard simultaneously can be seen
To country, dust pollution and haze phenomenon thereof are paid much attention to.
Soil leaching complete set of equipments integrates the collection of soil, carries, crushes, sieves and drip washing, for heavy metal-polluted
Work efficiency can be improved in dye place, reduces rehabilitation cost.This technique uses the machine tools such as excavator to realize contaminated soil
Transfer, enters during feed hopper, sieving approach device at material, can produce the dust of substantial amounts of contaminated soil, and high pressure
The effect of spray dust remover is that water or group water solution are disperseed mist formation so that it is contact with soil dust granules, and then by powder
Dirt catches, and promotes dust Accelerated subsidence.Chinese patent Authorization Notice No. (CN 104014583 B) " a kind of heavy-metal contaminated soil
Drip washing and heavy metal enrichment method and equipment thereof " disclose a kind of method of drip washing technique restoration of soil polluted by heavy metal and set
Standby, in this system, soil pretreatment completes soil breaking process by soil crusher, and then soil be delivered to drip washing rotating cylinder
Process.This technological design simply considers the workflow of soil pretreatment, does not accounts for soil and enters feed hopper, crushes
The process of the soil dust produced during device, if the equipment that is manufactured into carries out site remediation construction operation, can not
The meeting avoided produces substantial amounts of contaminated soil dust granules, certainly will impact the environment of job site, also can be to constructor
The physically and mentally healthy of member constitutes harm.
Summary of the invention
For defect of the prior art, the invention provides a kind of high-pressure fog dedusting being applied to soil remediation process
System, it is possible to effectively improve dustfall efficiency, automatization's degree is high, economically feasible, is being effectively improved operation side environment
While problem, turn avoid the wasting of resources, reduce the cost of operation.
The present invention solves that the problems referred to above are adopted the technical scheme that, it is provided that a kind of soil remediation process of being applied to
High-pressure fog dust pelletizing system, including storage tank, high-pressure hydraulic pump, water fog generator, crushing and screening device, liquid waste collector, waste water
Process pond, be provided with liquid level sensor in described storage tank, be connected by water inlet pipe between described storage tank and high-pressure hydraulic pump, institute
State water inlet pipe and be provided with Pressure gauge, intelligent electromagnetic flowmeter, flow control valve, between described high-pressure hydraulic pump and water fog generator
Being connected by outlet pipe, described water fog generator is provided with drain pipe, and drain pipe is rotatably connected with water fog generator, described row
The both sides tube wall of water pipe is provided with multiple atomizer, is provided with waste collection between described crushing and screening device and liquid waste collector
Pipe, is connected by waste liquid discharge pipe between described liquid waste collector and purification tank for liquid waste, described liquid level sensor and Intelligent electric
Magnetic flowmeter is all connected with PLC.
X-shaped eddy flow core it is provided with in described atomizer.
A diameter of 0.8mm～2mm of described atomizer.
A diameter of 1mm or 1.5mm of described atomizer.
Realize being rotatably connected by swivel joint between described drain pipe and water fog generator.
Beneficial effects of the present invention: this device can effectively improve dustfall efficiency, and automatization's degree is high, economy can
OK, while being effectively improved operation side environmental problem, turn avoid the wasting of resources, reduce the cost of operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
For making the purpose of the present invention, technical scheme and beneficial effect clearer, below in conjunction with the accompanying drawings the present invention is implemented
Mode is described in further detail.
For making the purpose of the present invention, technical scheme and beneficial effect clearer, below in conjunction with the accompanying drawings the present invention is implemented
Mode is described in further detail.
As it is shown in figure 1, the invention provides a kind of high-pressure fog dust pelletizing system being applied to soil remediation process, including storage
Water tank 1, high-pressure hydraulic pump 2, water fog generator 3, crushing and screening device 4 (existing equipment), liquid waste collector 5, waste water process
Pond 6, is provided with liquid level sensor 7 in described storage tank 1, be connected by water inlet pipe 8 between described storage tank 1 and high-pressure hydraulic pump 2,
Described water inlet pipe 8 is provided with Pressure gauge 9, intelligent electromagnetic flowmeter 10, flow control valve 11, described high-pressure hydraulic pump 2 and water smoke
Being connected by outlet pipe 12 between generator 3, described water fog generator 3 is provided with drain pipe 13, and drain pipe 13 is sent out with water smoke
Raw device 3 is rotatably connected (these are all that prior art is not describing in detail) by swivel joint 18, at atomizer 14
During spraying, drain pipe 13 rotates, it is possible to crushing and screening device 4 carries out atomizing de-dusting, described drain pipe 13 more fully
Both sides tube wall be provided with multiple atomizer 14, be provided with X-shaped eddy flow core in described atomizer 14, atomizing effect is more preferable, institute
The diameter range stating atomizer 14 is 0.8mm～2mm, under normal circumstances the shower nozzles using a diameter of 1mm or 1.5mm more, this
The water smoke that sample sprays through atomizer 14 is solid cone, plays the effect of protecting film, prevents the diffusion of dust granules.
Be provided with waste collection pipe 15 between described crushing and screening device 4 and liquid waste collector 5, described liquid waste collector 15 with
It is connected by waste liquid discharge pipe 16 between purification tank for liquid waste 6.The water smoke sprayed through atomizer 14 is scattered in soil surface, warp
Spending the regular hour, along with the increase of water smoke amount, the water smoke becoming scattered about soil surface can accumulate water droplet, and water droplet is through soil
Osmosis arrives the bottom of crushing and screening device 4, and after reaching certain volume, water droplet flows into waste liquid through liquid waste collector 15
Catcher 5, when the waste collection in liquid waste collector 5 to a certain extent after, waste liquid is discharged to waste water through waste liquid discharge pipe 16
Processing pond 6, the waste liquid in purification tank for liquid waste 6 processes Posterior circle through harmless treatments such as purifications and utilizes, to reaching to economize on
The purpose of water.
Described liquid level sensor 7 is all connected with PLC 17 with intelligent electromagnetic flowmeter 10, can be by remotely control
System processed realizes remotely controlling pressure atomization system for high pressure of supply water, reduces water consumption thus reduces cost.
Embodiment 1:
The dust particle concentration of certain factory floor is 100mg/m3, it is contemplated that after reaching depositing dust, dust particle concentration is 20mg/m3, dust reduction rate
80% can be reached.
1) atomizer 14 aperture uses 1.2mm, needs the spraying hydraulic pressure of 6MPa；
2) atomizer 14 aperture uses 1.5mm, needs the spraying hydraulic pressure of 4MPa；
3) water consumption of the atomizer 14 in 1.2mm aperture is the water consumption of atomizer 14 in 5.0L/min, 1.5mm aperture
Amount is 6.5L/min.
Although the pressure that the atomizer 14 in 1.5mm aperture needs is low, but each 1.5mm of the water consumption in the unit interval
The atomizer 14 in aperture just has more 1.5L/min, the water resource of many consumption 25%.
(2) if high-pressure hydraulic pump 2 can be supplied to the water yield of spraying system, each atomizer 14 only 3L/min, join
Atomizer 14 aperture put uses 1.5mm, needs the spray water pressure drop dirt poor effect of 1MPa.Atomizer 14 aperture uses
The atomisation pressure of 1.2mm can only achieve 2.2MPa.If atomizer 14 aperture uses the atomizer of 1mm, atomisation pressure is permissible
Reach 5.0MPa.
(3) atomizer 14 mist droplet particle size at the same pressure of smaller aperture due is the least.
1) pressure is at below 10MPa, and mist droplet particle size increases with pressure and declines comparatively fast；
2) pressure of more than 10MPa, the change of mist droplet particle size is the slowest, obtains more granule by continuing increase pressure
The droplet in footpath is the most highly difficult.
3) below 1MPa hydraulic pressure, mist droplet particle size is the biggest, has exceeded 250 μm, has reduced dustfall efficiency and mist droplet particle size mistake
There is greatly close relationship.
(4) same aperture atomizer 14, pressure is the highest, and the droplet sizes ejecting water smoke is the least, and flow is also big, water smoke
Particles Moving speed is the highest, and the atomization water yield in unit interval space will be the biggest, and therefore dust settling efficiency is the highest.
Embodiment 2:
If setting dust concentration as 5g/min, tunnel wind speed is 0.5m/s, measures atomized shower nozzle at different pressures
Before and after tunnel spraying section, the dust data concentration of section, draws dust reduction rate under different pressures according to dust concentration efficiency data.
(1) spraying under the wind speed of 0.5m/s for the atomizer 14 of model of the same race and the dust of certain grain size distribution
Dustfall efficiency increases along with the increase of atomisation pressure, increases to 8MPa from 2MPa, and dust dustfall efficiency improves 21.32%, but
It is when atomizing pressure is after 8MPa increases to 10MPa, and dustfall efficiency only improves 1.79%.
After atomisation pressure reaches certain value, continuing to improve atomisation pressure, the raising of dustfall efficiency is inconspicuous.Atomizing de-dusting
Mainly being carried out by inertial collision between grit and drop, the particle diameter of dust is the biggest, and droplet is the brightest with the collision effect of dust
Aobvious, be more conducive to depositing dust, the particle diameter of droplet is the least simultaneously, the biggest with the probability of dust collision, the best to the trapping effect of dust.
But the particle diameter of droplet is not the smaller the better, the particle diameter of droplet is too small, and droplet easily moves with air-flow, subtracts
Lack the speed of related movement of gas-liquid, be unfavorable for depositing dust on the contrary, and along with the continuation of atomisation pressure increases, spraying system will disappear
Consume more water resource, accelerate equipment attrition, pay higher economic cost, for the spraying of the atomizer 8MPa of 1.0mm
Pressure is optimal.
(2) for the atomizer 14 of model of the same race, atomisation pressure is arranged on 2MPa～10MPa, at distance atomizer
This type atomizer of 300mm position finding is atomized particle size data under different atomisation pressures.Droplet when 2MPa increases to 4MPa
Particle diameter decreases 9.36 μm, and when atomizing pressure 4MPa increases to 6MPa, mist droplet particle size decreases 35.73 μm, works as atomizing pressure
When 6MPa arrives 10MPa when increasing to 8MPa the most again, atomizing particle size decreases 11.59,10.28 μm respectively.
Atomizer 14 is certain, and atomisation pressure is the highest, and mist droplet particle size is the least, and the dispersibility of droplet is the best.Therefore, spraying
Pressure is the highest, and mist flow increases, and atomizer atomizing effect is the best, but continues to improve after atomisation pressure increases to 8MPa
Pressure of supply water is inconspicuous to strengthening atomizing effect effect.
When designing high-pressure fog dust pelletizing system, it is necessary to rationally select parameters according to practical situation, so could obtain
The effect arrived, obtains preferable result with less energy consumption；When limiting the water consumption of high-pressure fog dust pelletizing system, should use
Reduce atomizer aperture or reduce the method raising spray water pressure of atomizer 14 quantity, thus obtaining higher depositing dust effect
Rate；During design high-pressure fog dust pelletizing system, atomisation pressure should determine that, at more than 3MPa, otherwise water utilization rate is the lowest.But mist
Change pressure and be not to be exceeded 10MPa, be further added by pressure and can not make how many dustfall efficiency improves, to consume more water resource on the contrary
And power.The relation between atomisation pressure, the aperture of atomizer 14 and water consumption three should be considered, reach optimal
Combination, thus obtain the effect of radical sign.In sum, the universal law of high-pressure fog dust arrester depositing dust is disclosed, to reality
Application has directive significance, can be as reference during design high-pressure fog dust pelletizing system.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.The technology of the industry
Personnel, it should be appreciated that the present invention is not restricted to the described embodiments, simply illustrating this described in above-described embodiment and description
The principle of invention, the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these become
In the range of change and improvement both fall within claimed invention.Claimed scope is by appending claims and equivalent
Thing defines.
Claims (5)
1. the high-pressure fog dust pelletizing system being applied to soil remediation process, it is characterised in that: include storage tank, water under high pressure
Pump, water fog generator, crushing and screening device, liquid waste collector, purification tank for liquid waste, be provided with liquid level sensor in described storage tank,
Being connected by water inlet pipe between described storage tank and high-pressure hydraulic pump, described water inlet pipe is provided with Pressure gauge, intelligent electromagnetic flow
Meter, flow control valve, be connected by outlet pipe between described high-pressure hydraulic pump and water fog generator, and described water fog generator sets
Having drain pipe, and one end of drain pipe is rotatably connected with water fog generator, the other end of drain pipe is blind end, described drain pipe
Both sides tube wall be provided with multiple atomizer, be provided with waste collection pipe between described crushing and screening device and liquid waste collector,
It is connected by waste liquid discharge pipe between described liquid waste collector and purification tank for liquid waste, described liquid level sensor and Intelligent electric magnetic current
Gauge is all connected with PLC.
A kind of high-pressure fog dust pelletizing system being applied to soil remediation process the most according to claim 1, it is characterised in that:
X-shaped eddy flow core it is provided with in described atomizer.
A kind of high-pressure fog dust pelletizing system being applied to soil remediation process the most according to claim 1, it is characterised in that:
A diameter of 0.8mm～2mm of described atomizer.
A kind of high-pressure fog dust pelletizing system being applied to soil remediation process the most according to claim 3, it is characterised in that:
A diameter of 1mm or 1.5mm of described atomizer.
A kind of high-pressure fog dust pelletizing system being applied to soil remediation process the most according to claim 1, it is characterised in that:
Realize being rotatably connected by swivel joint between described drain pipe and water fog generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610655712.6A CN106039889A (en) | 2016-08-11 | 2016-08-11 | High-pressure spray dedusting system applied to soil restoration process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610655712.6A CN106039889A (en) | 2016-08-11 | 2016-08-11 | High-pressure spray dedusting system applied to soil restoration process |
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| CN106039889A true CN106039889A (en) | 2016-10-26 |
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| CN201610655712.6A Pending CN106039889A (en) | 2016-08-11 | 2016-08-11 | High-pressure spray dedusting system applied to soil restoration process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107349727A (en) * | 2017-08-30 | 2017-11-17 | 泰富重工制造有限公司 | A kind of smart spraying dust arrester and dust removal method |
| CN108211608A (en) * | 2017-12-27 | 2018-06-29 | 佛山市天顺科技有限公司 | A kind of spray dust remover for municipal highway |
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| JPH06233977A (en) * | 1993-02-10 | 1994-08-23 | Metallges Ag | Method for thermal separation of organic and/or inorganic substance from contaminated material |
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| JPH06233977A (en) * | 1993-02-10 | 1994-08-23 | Metallges Ag | Method for thermal separation of organic and/or inorganic substance from contaminated material |
| CN202237664U (en) * | 2011-10-09 | 2012-05-30 | 中钢集团马鞍山矿山研究院有限公司 | Open dust source cyclone curtain dust-settling device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107349727A (en) * | 2017-08-30 | 2017-11-17 | 泰富重工制造有限公司 | A kind of smart spraying dust arrester and dust removal method |
| CN108211608A (en) * | 2017-12-27 | 2018-06-29 | 佛山市天顺科技有限公司 | A kind of spray dust remover for municipal highway |
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Application publication date: 20161026 |