CN108296474A - Foundry's spraying system - Google Patents
Foundry's spraying system Download PDFInfo
- Publication number
- CN108296474A CN108296474A CN201710059708.8A CN201710059708A CN108296474A CN 108296474 A CN108296474 A CN 108296474A CN 201710059708 A CN201710059708 A CN 201710059708A CN 108296474 A CN108296474 A CN 108296474A
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- foundry
- spraying
- plc controller
- spraying system
- spraying device
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- 238000005507 spraying Methods 0.000 title claims abstract description 146
- 239000007921 spray Substances 0.000 claims abstract description 41
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 238000003860 storage Methods 0.000 claims abstract description 16
- 239000003595 mist Substances 0.000 claims description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 238000009434 installation Methods 0.000 claims description 12
- 238000005086 pumping Methods 0.000 claims description 11
- 238000000889 atomisation Methods 0.000 claims description 9
- 238000005485 electric heating Methods 0.000 claims description 6
- 239000008236 heating water Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000005266 casting Methods 0.000 abstract description 18
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 33
- 239000003814 drug Substances 0.000 description 25
- 230000000505 pernicious effect Effects 0.000 description 23
- 238000004519 manufacturing process Methods 0.000 description 19
- 239000000428 dust Substances 0.000 description 18
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 6
- 238000011160 research Methods 0.000 description 5
- 230000003247 decreasing effect Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000012377 drug delivery Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 206010019345 Heat stroke Diseases 0.000 description 1
- 206010028813 Nausea Diseases 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008693 nausea Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000009692 water atomization Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D45/00—Equipment for casting, not otherwise provided for
- B22D45/005—Evacuation of fumes, dust or waste gases during manipulations in the foundry
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
- Spray Control Apparatus (AREA)
Abstract
The invention discloses a kind of foundry's spraying systems, belong to casting technology field.The system includes liquid storage device, spraying device and control device, and the outlet of the liquid storage device connects the entrance of the spraying device, and the middle and upper part that the spraying device is mounted on foundry sprays to entire foundry；The control device includes electrical control cabinet, the PLC controller being set in the electrical control cabinet and the clock unit being set in the PLC controller and gear controller part, the control terminal of the PLC controller connects the spraying device, after the gear controller part is connected, the PLC controller controls the spraying device and repeats to act in the way of interval certain time length after certain time length of spraying according to the current time of the clock unit.The present invention can cool down simultaneously, dedusting and remove removing and harmful gas, and spray amount can accurately control, and of simple structure and low cost.
Description
Technical field
The present invention relates to casting technology field more particularly to a kind of foundry's spraying systems.
Background technology
Casting industry is the key industry of Chinese national economy, and the dust generated during castings production, pernicious gas are not
It only causes damages to the health of shop worker, larger pollution is also caused to external environment.Moreover, the height in foundry
The sultry environment of temperature also brings discomfort to worker, easily causes the serious consequences such as nausea, dizziness, heatstroke.Therefore, to foundry
The processing of dust, pernicious gas studied, and improve the working environment in foundry, be not allow to neglect in casting industry
Depending on the problem of.
For the high temperature and dust problem in foundry, prior art some is using pressure atomization system for high to foundry
Carry out decreasing temperature and increasing humidity, dedusting.The working media of spraying system is water, is supplied water from water tank to water pump, in spraying system operational process
In, water pump provides high pressure water by water supply pipe, spraying control cabinet, atomizer passgae to atomizer, realizes liquid water atomization, water
Mist forms sufficient hot and humid area with air, absorbs heat and is vaporized, and air temperature due to having lost sensible heat declines, and reaches drop
The purpose of temperature humidification.In addition water mist is caught with certain characteristics of motion and powder dust particle generation inertial collision, gravitational settling, interception
The effects that dirt, diffusion trapping, have the function that dedusting.
Inventor has found that this solution is the problem is that the more difficult standard of the spray amount of spraying system in the course of the research
Really control, when the water mist sprayed from atomizer excessively causes air humidity to reach saturation, water mist will form water droplet, water
Drop reacts with pernicious gas, forms acid rain and drops in Casting Equipment, to cause to corrode to equipment；When from atomizer
When the water mist of middle ejection is very few, then decreasing temperature and increasing humidity and the effect of dedusting will be undesirable.
For the pernicious gas problem in foundry, have side of the relevant technologies by the increase medicament in spraying system
Formula, to absorb, decompose or dispel sulfur dioxide, nitrogen oxides, formaldehyde, phenol, methanol, the nytron in foundry in air
The organic matters such as object.However this mode spininess sprayed of addition medicament is to the regional area in foundry, when for whole
When a foundry, however it remains spray amount more difficult the problem of accurately controlling of above-mentioned spraying system.
Invention content
The present invention provides one kind can cool down, dedusting and remove removing and harmful gas simultaneously, and spray amount can accurately control, and
Foundry's spraying system of simple structure and low cost.
In order to solve the above technical problems, present invention offer technical solution is as follows：
A kind of foundry's spraying system, including liquid storage device, spraying device and control device, wherein：
The outlet of the liquid storage device connects the entrance of the spraying device, and the spraying device is mounted on casting vehicle
Between middle and upper part spray to entire foundry；
The PLC controller that the control device includes electrical control cabinet, is set in the electrical control cabinet, the PLC
Controller is connected with clock unit and gear controller part, and the control terminal of the PLC controller connects the spraying device, described
After gear controller part is connected, the PLC controller controls the spraying device and presses according to the current time of the clock unit
Repeat to act according to the mode of interval certain time length after spraying certain time length.
Further, the spraying device includes pumping installations, pressure duct and high-pressure fog spray-head, wherein：
The outlet for stating liquid storage device connects the entrance of the pumping installations, and the outlet of the pumping installations is through institute
It states pressure duct and connects the high-pressure fog spray-head, the pressure duct is laid in foundry, the high-pressure fog spray-head
It is arranged on the pressure duct.
Further, the spraying device includes ultrasonic atomization generation device and for generating the ultrasonic atomization
The water mist that device generates dispels the wind turbine in foundry.
Further, the spraying device includes electric-heating water steam generator and is used for the electric-heating water steam
The vapor that generation device generates dispels the wind turbine in foundry.
Further, the clock unit is integrated in the PLC controller.
Further, when the PLC controller judges the current time of the clock unit in the first preset time period
When, the PLC controller controls the spraying device and repeats to act in the way of interval T1 durations after P1 durations of spraying；
When the PLC controller judges that the current time of the clock unit is in the second preset time period, the PLC controller control
It makes the spraying device to repeat to act in the way of interval T2 durations after P2 durations of spraying, P1 the and P2 durations not phase
Deng.
Further, the gear controller part at least two, the first preset time period of each gear controller part
Corresponding P1 durations and the corresponding P2 durations of the second preset time period are all different.
Further, the foundry is provided with temperature sensor and humidity sensor, the temperature with spraying system
The output end of sensor and humidity sensor is connected to the input terminal of the PLC controller.
Further, the temperature sensor and humidity sensor are set to the outside of foundry.
Further, the PLC controller is also associated with for showing the foundry with spraying system in work shape
The display screen of parameters when state.
The invention has the advantages that：
The foundry of the present invention is defeated by the liquid in liquid storage device under the control of PLC controller with spraying system
It is sent to spraying device, and the top that medicine mist is sprayed at entire foundry is formed by spraying device.On the one hand, medicine mist and air
Sufficient hot and humid area is formed, heat is absorbed and is vaporized, air temperature due to having lost sensible heat declines, and reaches decreasing temperature and increasing humidity
Purpose；And medicine mist catches dirt with powder dust particle generation inertial collision, gravitational settling, interception with certain characteristics of motion, spreads and catch
The effects that collection, has the function that dedusting.On the other hand, medicine mist is chemically reacted with the pernicious gas in foundry, will be had
Evil gas resolves into nonhazardous substance, has the function that removing and harmful gas.
Inventor has found in the course of the research, in the prior art spray amount more difficult the reason of accurately controlling be, due to casting
Workshop is within a production cycle, and in period early period, the concentration of temperature, Dust Capacity and its harmful gas in workshop is relatively
Low, humidity is relatively high, and with the lengthening of production time, the concentration of temperature, Dust Capacity and pernicious gas in workshop is increasingly
Height, humidity are lower and lower；After stopping production to the end, the air in workshop is gradually diffused into outside workshop, temperature and pernicious gas
Concentration continuously decrease.Therefore, in period early period of one production cycle of foundry, required spray amount is relatively fewer,
With the lengthening of production time, required spray amount also gradually increases therewith, when stopping production to the end, required spray amount
It is corresponding to reduce.And be typically only capable to control spraying device in existing spraying system and spray always and the time is longer, it can not basis
The practical condition of foundry selects spray amount, otherwise this will cause the spray amount of spraying system before foundry produces
Phase is excessive so that the water mist of ejection focuses mostly on around spraying device and has little time to spread, and forms water droplet；The spraying of spraying system
Or amount is very few in foundry's production mid-term so that the effect for generation of spraying is poor.And the foundry of the present invention is with spraying
The PLC controller of system controls spraying device intermittent spraying after the connection of gear controller part, according to the current time of clock unit
(intermittently stopping certain time length after spraying certain time length) so that the medicine mist of ejection is diffused with time enough, i.e. basis
The difference of current time, the spraying duration that PLC controller is controlled in current time also differ so that the medicine mist amount of ejection according to
The temperature, humidity of different time, Dust Capacity are different and different with the concentration of pernicious gas in foundry, are easy to control spraying
Amount.
In conclusion the foundry of the present invention can cooled down with spraying system, dedusting and removed removing and harmful gas simultaneously
While, it can accurately control spray amount.
Description of the drawings
Fig. 1 is the structural schematic diagram of foundry's spraying system of the present invention；
Fig. 2 is the structural schematic diagram of one embodiment of the spraying device of foundry's spraying system of the present invention；
Fig. 3 is the concentration curve of pernicious gas in a production cycle in certain foundry；
Fig. 4 is the concentration curve of pernicious gas in another production cycle in certain foundry.
Specific implementation mode
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
The present invention provides a kind of foundry's spraying system, as shown in Figure 1 to Figure 2, including liquid storage device 1, spray
Mist device 2 and control device 3, wherein：
Liquid storage device 1 outlet connection spraying device 2 entrance, spraying device 2 be mounted on foundry on
It sprays to entire foundry in portion；
Control device 3 includes electrical control cabinet, the PLC controller 31 being set in electrical control cabinet, and PLC controller 31 connects
It is connected to clock unit 32 and gear controller part 33, the control terminal of PLC controller 31 connects spraying device 2, gear controller part
After 33 connect, PLC controller 31 is according to the current time of clock unit 32, after control spraying device 2 is according to spraying certain time length
The mode of interval certain time length repeats to act.
The foundry of the present invention is defeated by the liquid in liquid storage device under the control of PLC controller with spraying system
It is sent to spraying device, and the top that medicine mist is sprayed at entire foundry is formed by spraying device.On the one hand, medicine mist and air
Sufficient hot and humid area is formed, heat is absorbed and is vaporized, air temperature due to having lost sensible heat declines, and reaches decreasing temperature and increasing humidity
Purpose；And medicine mist catches dirt with powder dust particle generation inertial collision, gravitational settling, interception with certain characteristics of motion, spreads and catch
The effects that collection, has the function that dedusting.On the other hand, medicine mist is chemically reacted with the pernicious gas in foundry, will be had
Evil gas resolves into nonhazardous substance, has the function that removing and harmful gas.
Inventor has found in the course of the research, in the prior art spray amount more difficult the reason of accurately controlling be, due to casting
Workshop is within a production cycle, and in period early period, the concentration of temperature, Dust Capacity and its harmful gas in workshop is relatively
Low, humidity is relatively high, and with the lengthening of production time, the concentration of temperature, Dust Capacity and pernicious gas in workshop is increasingly
Height, humidity are lower and lower；After stopping production to the end, the air in workshop is gradually diffused into outside workshop, temperature and pernicious gas
Concentration continuously decrease.Therefore, in period early period of one production cycle of foundry, required spray amount is relatively fewer,
With the lengthening of production time, required spray amount also gradually increases therewith, when stopping production to the end, required spray amount
It is corresponding to reduce.And be typically only capable to control spraying device in existing spraying system and spray always and the time is longer, it can not basis
The practical condition of foundry selects spray amount, otherwise this will cause the spray amount of spraying system before foundry produces
Phase is excessive so that the water mist of ejection focuses mostly on around spraying device and has little time to spread, and forms water droplet；The spraying of spraying system
Or amount is very few in foundry's production mid-term so that the effect for generation of spraying is poor.And the foundry of the present invention is with spraying
The PLC controller of system controls spraying device intermittent spraying after the connection of gear controller part, according to the current time of clock unit
(intermittently stopping certain time length after spraying certain time length) so that the medicine mist of ejection is diffused with time enough, i.e. basis
The difference of current time, the spraying duration that PLC controller is controlled in current time also differ so that the medicine mist amount of ejection according to
The temperature, humidity of different time, Dust Capacity are different and different with the concentration of pernicious gas in foundry, are easy to control spraying
Amount.
In conclusion the foundry of the present invention can cooled down with spraying system, dedusting and removed removing and harmful gas simultaneously
While, it can accurately control spray amount.
In the present invention, the selection of the specific time of spray duration and interval duration needs the size according to foundry, one
In the size of secondary sprayability, foundry situations such as humiture, flexibly determine.
In addition, the liquid in liquid storage device is either after water and medicament mix according to a certain percentage in advance
It is stored in liquid storage device, can also be that water supply installation and drug delivery device are set in foundry's spraying system,
When spraying system works, water and medicament are transported in liquid storage device by water supply installation and drug delivery device according to a certain percentage
It carries out being mixed to form liquid, then is transported to spraying device.
It should be noted that the liquid in drug delivery device in the present invention can select it is conventional can will be in foundry
Because of the liquid that the pernicious gas that casting technique generates is decomposed, details are not described herein again.
In one embodiment of the present invention, as shown in Fig. 2, spraying device 2 preferably includes pumping installations 201, high-voltage tube
Road 202 and high-pressure fog spray-head 203, wherein：
The entrance of the outlet connection pumping installations 201 of liquid storage device 1, the outlet of pumping installations 201 is through pressure duct
202 connection high-pressure fog spray-heads 203, pressure duct 202 is uniformly distributed in foundry, and high-pressure fog spray-head 203 is uniformly set
It sets on pressure duct.
In the present embodiment, spraying device 2 can be multiple, each spraying device include a pumping installations, one
Pressure duct and multiple high-pressure fog spray-heads；Spraying device 2 can also be one, spraying device include a pumping installations,
Multiple pressure ducts and multiple high-pressure fog spray-heads.Above two mode may be implemented spraying device to entire foundry into
Row spraying.
In second embodiment of the present invention, spraying device 2 may include ultrasonic atomization generation device.Ultrasonic atomization
Generation device is that (frequency of oscillation is 1.7MHz or 2.4MHz, is more than the audibility range of people, which shakes using electronics high frequency oscillation
Swing and human body and animal absolutely not injured), by the high-frequency resonant of ceramic atomizing piece, liquid water-medicine mixture molecular structure is beaten
It dissipates and generates the elegant water of nature-medicine mist, be not required to heat or add any chemical reagents.Since ultrasonic atomization generation device produces
Raw water-medicine mist is that nature is elegant out, and more uniform in order to make water-medicine mist of generation spread, range is wider, this implementation
Spraying device in example further includes the wind turbine dispelled the water mist that ultrasonic atomization generation device generates in foundry.
In the third embodiment of the present invention, spraying device 2 may include electric-heating water steam generator and be used to incite somebody to action
The vapor that electric-heating water steam generator generates dispels the wind turbine in foundry.Electric-heating water steam generator is
Using liquid by electrical heating, make the principle for being converted into steam state after its temperature to boiling point that water-medicine mixture be made to be converted into water-
Medicine mist.
It should be noted that other than above-mentioned three kinds of embodiments, spraying device can also use those skilled in the art's energy
That enough expects meets the other structures of mentioned above principle, does not influence the realization of technical scheme of the present invention.
In one embodiment of the invention, clock unit 32 is preferably integrated in PLC controller 31.
In one embodiment of the invention, when PLC controller 31 judges the current time of clock unit 32 when first is default
Between in section when, PLC controller 31 controls spraying device 2 and repeats to move in the way of interval T1 durations after P1 durations of spraying
Make；When PLC controller 31 judges that the current time of clock unit 32 is in the second preset time period, PLC controller 31 controls
Spraying device 2 repeats to act in the way of interval T2 durations after P2 durations of spraying, P1 and P2 durations are unequal.By
The different spraying duration of setting in different preset time period, to adapt to the size of foundry, equipment works in foundry
The factors such as time length caused by the difference of temperature, humidity, dust concentration and harmful gas concentration in different time sections；
And the interval duration (i.e. T1 and T2) in different preset time periods then both can it is identical can not also be identical, need to only ensure that spraying fills
Setting the medicine mist of ejection can spread in time.
In one embodiment of the invention, gear controller part 33 is more preferably at least two, each gear controller part 33
The corresponding P1 durations of first preset time period and the corresponding P2 durations of the second preset time period are all different.According to foundry
Size, the different gear control of the setting such as temperature, humidity caused by the factors such as time length of equipment work in foundry
Device, the spraying system for further ensuring the present invention accurately control the spray of spraying device according to the actual conditions of foundry
Mist amount.
Further, foundry is preferably provided with temperature sensor 4 and humidity sensor 5 with spraying system, and temperature passes
The output end of sensor 4 and humidity sensor 5 is connected to the input terminal of PLC controller 31.PLC controller 31 is according to temperature sensor
4 temperature and humidities detected with humidity sensor 5 can the automatic decision spraying system gear controller part to be connected to so that
Spraying device 2 carries out spray action according to preset spraying duration and interval duration, is convenient for automatic management.Temperature herein passes
Sensor and humidity sensor can also be integrated humiture collection either independent sensor detects temperature and humidity
At sensor, required temperature and humidity can be detected.
Inventor has found that spraying system in the prior art is by temperature sensor and humidity sensor in the course of the research
In foundry, still, the limitation and foundry due to casting technique itself are generally very big, lead to foundry
Interior temperature and humidity is not equally distributed, if the number for the temperature sensor and humidity sensor being arranged in foundry
It measures less, then the temperature and humidity in foundry can be detected inaccurate；But if increase temperature sensor and humidity biography
The quantity of sensor then inevitably increases cost.Inventor also found that the door and window of foundry is generally all in the course of the research
It can open, the air outside foundry is entered by open door and window in foundry, and the air in foundry passes through casting
The exhaust system of workshop top is discharged so that foundry's inner air and outer air cycle.Therefore, the temperature and humidity of external environment more can
The bulk temperature and humidity in foundry are embodied, therefore, those skilled in the art can be according to the temperature of detection external environment
Angle value and humidity value simultaneously control the spray amount of spraying system and spraying duration by means of psychrometric chart in the prior art, make
Obtain water-medicine mist that spraying system sprays will not form water droplet because excessive, spray effect will not be caused bad because very few,
To ensure that PLC controller more accurately controls spray amount.
As a further improvement on the present invention, by being arranged temperature sensor 4 and humidity sensor 5 in foundry
Outside passes the temperature and humidity detected to detect the temperature and humidity of external environment, temperature sensor 4 and humidity sensor 5
PLC controller 31 is transported to, PLC controller 31 thereby determines that and controls the spray amount of spraying device 2.
In the specific spray amount for determining spraying device 2, calculating determination can be carried out according to psychrometric chart in the prior art.
Further, PLC controller 31 is further preferably connected with for showing foundry with spraying system in working condition
When parameters display screen 34.These parameters may include spraying at the beginning of, spraying end time, each gear
The spraying duration and interval duration of control device, total spraying duration of each gear controller part, current temperature and humidity with
And the operating status etc. of each equipment.Display screen can make staff clearly, the spraying system of the convenient monitoring present invention
Working condition.When being provided with display screen, each gear controller part either setting membrane keyboard on a display screen,
The button switch that can be provided on electrical cabinet；When each gear controller part is provided in the button switch on electrical cabinet
When, either a switch controls single gear, it can also be that a switch controls multiple gears, can realize different stalls
Between conversion.
Now it is given at the specific setting of foundry's spraying system of the invention in a certain foundry, wherein the casting
The length for making workshop is 100 meters, and width is 18 meters, is highly 18 meters.The control device of the casting spraying system of the present invention is set
It sets at the doorway of workshop, spraying device is one, and the quantity of high-pressure nozzle is 450, and the distance between adjacent high-pressure nozzle is 3
Rice, the height apart from ground are 14 meters, and the quantity of the high-pressure fog spray-head on each high-pressure nozzle is 96, adjacent high-pressure micro-mist
The distance between nozzle be 4 meters (four hole spray seat mounting means of use), a concentration of the 2% of water-medicine mixture；Each gear control
Parameter such as following table：
It is from 16 when the production cycle of the foundry:00 to 20:When 00, during the Casting Equipment work in foundry
The temperature of generation is 40 DEG C, Dust Capacity be 15 milligrams/cubic metre, main pernicious gas type have sulfur dioxide, nitrogen oxides,
Formaldehyde etc. and total concentration are 10.25 milligrams/cubic metre, and the concentration curve of pernicious gas such as the curve in Fig. 3 are 1. shown, then
When foundry using the present invention is sprayed with spraying system, the first gear controller part is selected to spray, casting is set
During standby work, the temperature in the foundry is 30 DEG C, and Dust Capacity is 0.2 milligram/cubic metre, and the total concentration of pernicious gas is
0.03 milligram/cubic metre, as the curve in Fig. 3 2. shown in.
It is from 16 when the production cycle of the foundry:30 to 20:When 00, during the Casting Equipment work in foundry
The temperature of generation is 45 DEG C, Dust Capacity be 20 milligrams/cubic metre, main pernicious gas type have sulfur dioxide, nitrogen oxides,
Formaldehyde etc. and total concentration are 13.46 milligrams/cubic metre, and the concentration curve of pernicious gas such as the curve in Fig. 4 are 3. shown, then
When foundry using the present invention is sprayed with spraying system, the second gear controller part is selected to spray, casting is set
During standby work, the temperature in the foundry is 32 DEG C, and Dust Capacity is 0.3 milligram/cubic metre, and the total concentration of pernicious gas is
0.05 milligram/cubic metre, as the curve in Fig. 4 4. shown in.
Gear controller part and each gear controller there are two being only arranged in spraying system are only listed in the present embodiment
The situation that the corresponding spray time section of part is 4, those skilled in the art can be arranged multiple according to the actual conditions of foundry
The quantity of gear controller part, the corresponding spray time section of each gear controller part should be at least 3, and each period
Spraying duration and interval duration in duration, every section of duration is according to the temperature in foundry within the period, humidity, dust
The combined factors such as amount and the concentration of pernicious gas, flexibly setting.
In conclusion the foundry of the present invention accurately controls spray amount with spraying system by section in different times,
So that temperature in entire foundry, humidity is maintained at that staff is made to feel more comfortable numerical value, and entirely cast
The concentration of pernicious gas in workshop makes one to can't smell niff in 0.05 milligram/cubic metre or so, both will not be to work
The body of personnel damages, and will not pollute air environment, meets environmental requirement, without regulation of stopping work.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of foundry's spraying system, which is characterized in that including liquid storage device, spraying device and control device,
Wherein：
The outlet of the liquid storage device connects the entrance of the spraying device, and the spraying device is mounted on foundry
It sprays to entire foundry middle and upper part；
The PLC controller that the control device includes electrical control cabinet, is set in the electrical control cabinet, the PLC controls
Device is connected with clock unit and gear controller part, and the control terminal of the PLC controller connects the spraying device, the gear
After control device is connected, the PLC controller controls the spraying device according to spray according to the current time of the clock unit
The mode of interval certain time length repeats to act after mist certain time length.
2. foundry's spraying system according to claim 1, which is characterized in that the spraying device includes that pumping fills
It sets, pressure duct and high-pressure fog spray-head, wherein：
The outlet of the liquid storage device connects the entrance of the pumping installations, and the outlet of the pumping installations is through the high pressure
High-pressure fog spray-head described in piping connection, the pressure duct are laid in foundry, and the high-pressure fog spray-head setting exists
On the pressure duct.
3. foundry's spraying system according to claim 1, which is characterized in that the spraying device includes ultrasonic wave
Atomization generation device and the water mist for generating the ultrasonic atomization generation device dispel the wind turbine in foundry.
4. foundry's spraying system according to claim 1, which is characterized in that the spraying device includes electrical heating
Steam generator and vapor for generating the electric-heating water steam generator dispel in foundry
Wind turbine.
5. foundry's spraying system according to claim 1, which is characterized in that the clock unit is integrated in described
In PLC controller.
6. according to any foundry's spraying system in claim 1 to 5, which is characterized in that when the PLC is controlled
When device judges that the current time of the clock unit is in the first preset time period, the PLC controller controls the spraying dress
It sets and repeats to act in the way of interval T1 durations after P1 durations of spraying；When the PLC controller judges the clock list
When the current time of member is in the second preset time period, the PLC controller controls the spraying device according to spraying P2 durations
The mode of interval T2 durations repeats to act afterwards, P1 the and P2 durations are unequal.
7. foundry's spraying system according to claim 6, which is characterized in that the gear controller part is at least
Two, corresponding P1 durations of the first preset time period of each gear controller part and when the corresponding P2 of the second preset time period
Length is all different.
8. according to foundry's spraying system described in claim 6, which is characterized in that spraying system of the foundry
System is provided with temperature sensor and humidity sensor, and the output end of the temperature sensor and humidity sensor is connected to described
The input terminal of PLC controller.
9. foundry's spraying system according to claim 8, which is characterized in that the temperature sensor and humidity pass
Sensor is set to the outside of foundry.
10. foundry's spraying system according to claim 8, which is characterized in that the PLC controller is also associated with
Display screen for showing parameters of the foundry with spraying system in working condition.
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|---|---|---|---|
| CN201710059708.8A CN108296474A (en) | 2017-01-24 | 2017-01-24 | Foundry's spraying system |
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| CN201710059708.8A CN108296474A (en) | 2017-01-24 | 2017-01-24 | Foundry's spraying system |
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| CN108296474A true CN108296474A (en) | 2018-07-20 |
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