CN104437018B - During a kind of Zhenjiang plaster produces, chemical combination oil smoke processes technique and device - Google Patents
During a kind of Zhenjiang plaster produces, chemical combination oil smoke processes technique and device Download PDFInfo
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- CN104437018B CN104437018B CN201410555792.9A CN201410555792A CN104437018B CN 104437018 B CN104437018 B CN 104437018B CN 201410555792 A CN201410555792 A CN 201410555792A CN 104437018 B CN104437018 B CN 104437018B
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Abstract
The invention discloses chemical combination oil smoke during a kind of Zhenjiang plaster produces and process technique and device, belong to technical field of waste gas treatment.After comprising the steps: the oil smoke in chemical combination operation in the plaster production process of Zhenjiang is carried out electrion process, carry out water and absorb and activated carbon adsorption process, then carry out spray-absorption, finally discharge from chimney.The oil smoke that the present invention provides processes technique can eliminate the stink in the waste gas during Zhenjiang plaster produces effectively, eliminates lead contamination.
Description
Technical field
The invention discloses chemical combination oil smoke during a kind of Zhenjiang plaster produces and process technique and device, belong to exhaust gas treatment technology
Field.
Background technology
Zhenjiang plaster has the history of more than 300 year, cures mainly the disease such as bones and muscles pain, traumatic injury, has wind-expelling pain-stopping, relaxing muscles and tendons work
Blood, pleasant function of subsiding a swelling.During the combination reaction that plaster produces, having waste gas to produce, it is mainly composed of lead and oil.
In black plaster production process, produce waste gas discharge, mainly have following three process.1. oil refining operation: at medical material
In the oil refining process decocted with oil together high-temperature heating, in oil refining cauldron, give out oil gas and foul smell.This foul smell is mainly by moving
In species (such as insecticide etc.) medical material, contained protein component decomposes through high-temperature heating and produces.2. chemical combination operation: oil refining operation
Medicine oil and the Plumbum preparatium (Pb of gained3O4) produce a large amount of black smoke mist, the strongest foul smell and waste gas containing lead during reacting by heating
Distribute together in company with oil gas.Organic substance pyrolytic during wherein foul smell is medicine oil and produce, waste gas containing lead is to be entered by oil, pellet
Chemical reaction and pellet that row is complicated decompose and produce.The effluvium that this operation produces when producing meets windy day, far away from
Beyond workshop leeward 500 m, place can smell, and around masses' suggestion is the biggest.These waste gas are caused harm bigger, it is necessary to smelting is managed.3. change
Grow operation: the plaster obtained after lower pellet is grown and poured in little iron pan by lower red pot by our factory, is condensed into solid block and is transported to spread out cream place.
Then little iron pan is put into and heat on fire, make plaster grow fusing, add powdery medical material (title fines) and mix thoroughly, send cream operation stand, stand
Cream.Changing has part waste gas containing lead to distribute when growing, and emission raises with temperature and increases.In above-listed three process, red operation below
Produce is smelly
Gas and waste gas containing lead are the most serious, are the key links of waste gas pollution control and treatment.
Former emission control technology is: reaction pot----combustion furnace----coiled water cooler----air-introduced machine----spray
Absorption tower----chimney.Defect: 1, energy resource consumption is big: for processing the oil in waste gas, using burner apparatus, waste gas oxygen supplement is fired
Burning, temperature raises, and volume drastically expands, and causes gas treatment amount to increase.Reduce EGT with coiled water cooler, consume
A large amount of water, too increase the resistance of ducting, cause air-introduced machine load to increase, and spray tower system number is more, and power consumption is big, power consumption total work
Rate reaches 22kW/h.2, it is tempered quick-fried spray: due to long-term production, makes reaction pot deposit more vegetable oil to collection in the pipeline between combustion furnace,
When deficiency in draught, tempering phenomenon can be produced from combustion furnace.Fire burns to reaction pot along pipeline always, causes kettle temperature anxious
Rising, gas drastically expands, and sprays from venting, is easily formed fire, causes personnel to injure.3, absorption efficiency is poor: spray absorber
Without column plate and filler, the lead gas one liquid contact rate really absorbed in waste gas with Water spray is low, and absorption efficiency is poor, adds tail gas
Height of release is relatively low, and in tail gas, lead content exceeds discharge standard after testing.It addition, absorbing liquid (water) is constantly changed, discharge, formed
Secondarily polluted water.Pollutant treatment result such as following table.
Summary of the invention
The technical problem to be solved is the problem of exhaust emission in the plaster production process of Zhenjiang, mainly uses height
Pressure drop solution, the means adsorbed, absorb, it is provided that during a kind of Zhenjiang plaster produces, chemical combination oil smoke processes technique and device.
According to an aspect of the present invention, during a kind of Zhenjiang plaster produces, chemical combination oil smoke processes technique, comprises the steps:
After oil smoke in chemical combination operation in the plaster production process of Zhenjiang is carried out electrion process, carry out water and absorb and activated carbon suction
Attached process, then carry out spray-absorption, finally discharge from chimney.
Preferably, it is 10～20kHz that electrion processes medium frequency, and voltage range is 3～20 kV.
Preferably, during electrion processes, the sectional area of oil smoke runner becomes larger.
Preferably, water absorption step is before steps of activated carbon adsorption.
Preferably, in water absorption step, adding alkali in water, making pH is 10～14.
Preferably, in water absorption step, water adds surfactant.
Preferably, the step of spray-absorption is multistage absorption.
According to another aspect of the present invention, chemical combination apparatus for treating cooking fume in the plaster production of a kind of Zhenjiang, include successively
The high-pressure discharging device of connection, turbofan, water sealed tank, absorbent charcoal adsorber, spray column, chimney.
Preferably, described spray column is more than two-stage.
Preferably, fill in water sealed tank is sodium hydroxide solution.
Beneficial effect
The oil smoke that the present invention provides processes technique can eliminate the stink in the waste gas during Zhenjiang plaster produces effectively, disappears
Except lead contamination.
Accompanying drawing explanation
Fig. 1 is the flow chart of the emission-control equipment that the present invention provides.
Detailed description of the invention
Below by detailed description of the invention, the present invention is described in further detail.But those skilled in the art will manage
Solving, the following example is merely to illustrate the present invention, and should not be taken as limiting the scope of the invention.Unreceipted concrete skill in embodiment
Art or condition person, according to the technology described by the document in this area or condition or carried out according to product description.Examination used
Agent or instrument unreceipted production firm person, be can by city available from conventional products.
The value expressed using range format should be interpreted as in a flexible way not only including clearly listing as scope
The numerical value of limit value, but also include containing all single numerical value within the range or subinterval, just as each numerical value and Zi Qu
Between be expressly recited out.Such as, the concentration range of " about 0.1% to about 5% " should be understood to not only to include clearly to list
The concentration of about 0.1% to about 5%, also includes the single concentration (e.g., 1%, 2%, 3% and 4%) in the range of indication and subinterval (example
As, 0.1% to 0.5%, 1% to 2.2%, 3.3% to 4.4%).
The production method of heretofore described Zhenjiang plaster mainly comprise the steps: dispensing, refine oil, endure cream, change grow,
Stand cream, six operations of packaging.L the medical material of processing, the process of preparing Chinese medicine is made into first, second two groups by formula by () dispensing.First group direct Song Xia road
Operation, second group beat powder wait be used in beat powder time dust pollution relatively big, be equipped with a certain amount of vegetable oil and Plumbum preparatium (Pb3O4).(2) oil refining
In oil refining cauldron, add vegetable oil 500kg every time, first group medical material is loaded casher box, adds a cover post-heating about four in manually hanging in pot little
Time, temperature rise reaches 240 DEG C of truces.Waste gas (foul smell) is had to discharge from going out Gas chimney during heating.Release after truce cools down eight hours
Oil has contained the composition of medicine, referred to herein as medicine oil.Finally going out medicinal residues from pot infantile tic, medicinal residues can make fuel.Vegetable oil in frying oil operation
React under 300 celsius temperatures with the medical material containing animal, substantial amounts of NMHC waste gas and macromole plant can be discharged
Albumen and animal proteinum.(3) endure cream in enduring cream pot, add a certain amount of medicine oil every time, be heated to uniform temperature, then be proportionally added into
A certain amount of Plumbum preparatium, continues to be heated to 300 DEG C, the most constantly manual stirring, just becomes plaster and grow after oil, red reaction fully,
Rear plaster is grown and is poured in some little iron pans, and natural cooling in bulk, this process is entirely and manually collects work, has serious waste gas in production
(foul smell, lead gas) produces.(4) change taste to be transported to spread out cream place by the plaster taste of cooling in bulk.Then little iron pan is placed on fire and adds
Heat, makes plaster grow fusing, temperature about 60 DEG C, adds a certain proportion of second group fines, after mixing thoroughly, send stand cream operation, when changing taste
Micro lead gas is had to distribute.(5) the stand plaster sent here by last process of cream is grown, artificial stand be coated on square red cloth Zhenjiang cream
Medicine.(6) plaster spread out cooling descendant's frock is entered paper bag by packaging, and vanning is dispatched from the factory.
Heretofore described " chemical combination operation " refers to medicine oil and the Plumbum preparatium (Pb of oil refining operation gained3O4) reacting by heating
Process, it is also possible to claim to endure cream operation.
The device flow chart that the present invention uses is connected to high-pressure discharging device as it is shown in figure 1, flue gas enters pipeline, and height presses
Include gas feed and gas outlet on electric installation, be respectively arranged with two in the upper and lower both sides of the runner of high-pressure discharging device
Block POROUS TITANIUM PLATE, titanium plate is connected to high-voltage conducting wires and ground wire, so can form high-tension electricity potential difference, and high-voltage conducting wires can carry
The preferably pulse voltage of confession, frequency is 10～20kHz, and voltage range is 3～20 kV, and high-pressure discharging device mainly will be big
Molecule plant and animal albuminolysis becomes little molecule, and the runner of high-pressure discharging device can be prismatic runner, but optimum
Being to use cross section of fluid channel to become larger, because waste gas sectional area when this equipment amplifies suddenly, air velocity reduces, through overdischarge
The collision of potsherd and gather and be collected.Outlet at high-pressure discharging device is connected in water seal by high-pressure turbine blower fan, high
The effect of pressure turbofan is that waste gas is compressed to more than 0.05MPa, can overcome and carry out gas flowing in follow-up processing means
Time each equipment resistance.
It follows that need gas is carried out activated carbon adsorption process, the part vegetable and animals oils that activated carbon can absorb in waste gas
Fat, NMHC etc., can reduce the stink discharging gas.In an improvement embodiment of the present invention, preferably entering
Installing water seal before row absorbent charcoal adsorber, the effect of water seal is to absorb a part of vegetable oil, protein, it is also possible to absorb
A part of lead, the purpose of do so can be prevented from activated carbon when absorption, polluted by these impurity, affect absorbing and deodorizing and imitate
Really.In the embodiment of an other improvement, preferably use aqueous alkali, it is preferable that pH scope 10～14 hydroxide
Sodium solution, the purpose of do so can prevent activated carbon to be contaminated further, improve the adsorption effect of activated carbon.Other one
In the embodiment of individual improvement, aqueous alkali is preferably added the surfactant of 0.5～2wt%, such as: cetyl benzenesulfonic acid
Sodium etc., can improve the adsorption effect to oily matter and albumen.
After activated carbon adsorption, the gas after processing is sent into spray column and is carried out sprinkling process, and spray column is main
It is to be absorbed by aqueous alkali and waste gas reverse-impact, removes above-mentioned NMHC in removing exhaust gas, foul smell, lead gas, animal and vegetable protein.Spray
The progression drenching tower is the most multistage, can improve treatment effect；Spray column preferably uses and sprays aqueous alkali, such as pH scope
At the sodium hydroxide solution of 10～14.Waste gas through spray process can be sent into chimney and carry out emptying process.
The present invention assesses process effect by lead content, NMHC content, stink sensory evaluation these three index
Really.
For the detection of the NMHC in waste gas, the present invention uses the double hydrogen flame ionization detector gas phase color of twin columns
Chromatography.Concrete detecting step refers to document: Pan Jinfang, Zhao Yixian, magnifies year, and " Air By Gas Chromatography is with useless
NMHC in gas ", " chemical industry environmental protection " the 3rd phase in 1999.
The method of stink sensory evaluation is at distance chimney 10 m, and by 30 evaluation personnel randomly selected, (grow up man
Property and each 15 of adult female) abnormal smells from the patient is evaluated.Evaluation criterion is: 0, free from extraneous odour；1, faint stink；2, frowziness；
3, obvious stink.Meansigma methods is calculated after being marked.
Embodiment 1
Waste gas chemical combination operation in the plaster production process of Zhenjiang obtained is sent in high-pressure discharging device, high-pressure discharging device
Main body runner be diameter 0.5 m, the Straight of length 5m, upper and lower in pipe applies high voltage pulse (frequency 15 kHz, voltage
It is respectively adopted 3,5,10,15,20 kV), after process, waste gas is forced into 0.05 MPa by turbofan, sends into water seal, then
Entering the defecator being filled with activated carbon, finally send into spray column and carry out absorption process, spray column uses two grades, fills in tower
Having Raschig ring filler, tower height 2m, tower diameter 0.3 m, tower top sprays the sodium hydroxide solution of 1wt%, fountain height 100 kg/h, controls
Gas speed 1.5 m/s, spray tower top gas discharge after chimney, chimney height 20m.Result at different conditions is such as
Shown in following table.
Embodiment 2
Waste gas chemical combination operation in the plaster production process of Zhenjiang obtained is sent in high-pressure discharging device, high-pressure discharging device
Main body runner be diameter 0.5 m, the Straight of length 5m, upper and lower in pipe applies high voltage pulse (frequency 15 kHz, voltage
15kV), after process, waste gas is forced into 0.05 MPa by turbofan, sends into the defecator being filled with activated carbon, then enters
Entering water seal, finally send into spray column and carry out absorption process, spray column uses two grades, is filled with Raschig ring filler in tower, tower height 2m,
Tower diameter 0.3 m, tower top sprays the sodium hydroxide solution of 1wt%, fountain height 100 kg/h, controls gas speed 1.5 m/s, sprays tower top
Gas discharge after chimney, chimney height 20m.Lead content 1.12 mg/m3, NMHC content 70.9 mg/m3, smelly
Taste sensory evaluation 1.6.After carrying out contrasting it can be seen that pass through to have exchanged the order of water seal and activated carbon with embodiment 1, process
The first water seal activated carbon adsorption again that effect is inferior in embodiment 1.
Embodiment 3
Waste gas chemical combination operation in the plaster production process of Zhenjiang obtained is sent in high-pressure discharging device, high-pressure discharging device
Main body runner be diameter 0.5 m, the Straight of length 5m, upper and lower in pipe applies high voltage pulse (frequency 15 kHz, voltage
15kV), after process, waste gas is forced into 0.05 MPa by turbofan, and sending into water seal (is the hydroxide of 14 for pH in water seal
Sodium solution), enter back into the defecator being filled with activated carbon, finally send into spray column and carry out absorption process, spray column uses two
Level, is filled with Raschig ring filler, tower height 2m, tower diameter 0.3 m in tower, tower top sprays the sodium hydroxide solution of 1wt%, fountain height 100
Kg/h, controls gas speed 1.5 m/s, and the gas of spray tower top is discharged after chimney, chimney height 20m.Lead content 0.56 mg/
m3, NMHC content 27.4 mg/m3, stink sensory evaluation 0.5.By embodiment 1 and embodiment 3 it can be seen that at water
Envelope uses aqueous alkali can be effectively improved treatment effect.
Embodiment 4
Waste gas chemical combination operation in the plaster production process of Zhenjiang obtained is sent in high-pressure discharging device, high-pressure discharging device
Main body runner be diameter 0.5 m, the Straight of length 5m, upper and lower in pipe applies high voltage pulse (frequency 15 kHz, voltage
15kV), after process, waste gas is forced into 0.05 MPa by turbofan, and sending into water seal (is the hydroxide of 14 for pH in water seal
Sodium solution, and add 1wt% cetyl benzenesulfonic acid sodium), enter back into the defecator being filled with activated carbon, finally send into spray
Drenching tower and carry out absorption process, spray column uses two grades, is filled with Raschig ring filler, tower height 2m, tower diameter 0.3 m in tower, and tower top sprays
Spilling the sodium hydroxide solution of 1wt%, fountain height 100 kg/h, control gas speed 1.5 m/s, the gas of spray tower top is after chimney
Discharge, chimney height 20m.Lead content 0.22 mg/m3, NMHC content 21.4 mg/m3, stink sensory evaluation 0.4.Logical
Cross embodiment 1 and embodiment 4 it can be seen that add a certain amount of surfactant in water seal can improve treatment effect.
Embodiment 5
Difference with embodiment 4 is: use the activated carbon that nitric acid dousing is modified.By in the plaster production process of Zhenjiang
The waste gas that chemical combination operation obtains is sent in high-pressure discharging device, and the main body runner of high-pressure discharging device is diameter 0.5 m, length 5m
Straight, upper and lower in pipe applies high voltage pulse (frequency 15 kHz, voltage 15kV), and after process, waste gas passes through turbine
Blower fan is forced into 0.05 MPa, sends into water seal and (is the sodium hydroxide solution of 14 for pH in water seal, and adds 1wt% cetyl
Benzene sulfonic acid sodium salt), enter back into the defecator being filled with modified activated carbon, finally send into spray column and carry out absorption process, spray column
Using two grades, be filled with Raschig ring filler, tower height 2m, tower diameter 0.3 m in tower, tower top sprays the sodium hydroxide solution of 1wt%, spray
The amount of spilling 100 kg/h, controls gas speed 1.5 m/s, and the gas of spray tower top is discharged after chimney, chimney height 20m.Lead content
0.15 mg/m3, NMHC content 16.4 mg/m3, stink sensory evaluation 0.2.
Embodiment 6
Difference from embodiment 1 is: the cross section of fluid channel of high-pressure discharging device is different, for truncated cone-shaped.Zhenjiang plaster is raw
The waste gas that during product, chemical combination operation obtains is sent in high-pressure discharging device, and the main body runner of high-pressure discharging device is truncated cone-shaped,
Import 0.3 m, exports 0.7m, length 5m, and the upper and lower in pipe applies high voltage pulse (frequency 15 kHz, voltage 15kV), processes
Afterwards, waste gas is forced into 0.05 MPa by turbofan, sends into water seal (in water seal be the sodium hydroxide solution of 14 for pH), then
Entering the defecator being filled with activated carbon, finally send into spray column and carry out absorption process, spray column uses two grades, fills in tower
Having Raschig ring filler, tower height 2m, tower diameter 0.3 m, tower top sprays the sodium hydroxide solution of 1wt%, fountain height 100 kg/h, controls
Gas speed 1.5 m/s, spray tower top gas discharge after chimney, chimney height 20m.Lead content 0.56 mg/m3, non-methane
Total hydrocarbon content 27.4 mg/m3, stink sensory evaluation 0.5.
Claims (1)
1. during a Zhenjiang plaster produces, chemical combination oil smoke processes technique, it is characterised in that comprise the steps: Zhenjiang plaster raw
The waste gas that during product, chemical combination operation obtains is sent in high-pressure discharging device, and the main body runner of high-pressure discharging device is diameter 0.5
M, the Straight of length 5m, the upper and lower in pipe applies high voltage pulse, and the frequency of high voltage pulse is 15 kHz, the electricity of high voltage pulse
Pressure is 15kV, and after process, waste gas is forced into 0.05 MPa by turbofan, sends into water seal, is the hydrogen of 14 for pH in water seal
Sodium hydroxide solution, and add 1wt% cetyl benzenesulfonic acid sodium, enter back into the filtration being filled with nitric acid dousing modified activated carbon
Device, finally sends into spray column and carries out absorption process, and spray column uses two grades, is filled with Raschig ring filler, tower height 2m, tower in tower
Footpath 0.3 m, tower top sprays the sodium hydroxide solution of 1wt%, fountain height 100 kg/h, controls gas speed 1.5 m/s, spray tower top
Gas is discharged after chimney, chimney height 20m, flue gas lead content 0.15 mg/m after process3, NMHC content
16.4 mg/m3。
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| CN201410555792.9A CN104437018B (en) | 2014-10-17 | 2014-10-17 | During a kind of Zhenjiang plaster produces, chemical combination oil smoke processes technique and device |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106621662A (en) * | 2016-12-11 | 2017-05-10 | 天津潜宇塑胶制品有限公司 | Flue gas purifying device |
| CN111318145A (en) * | 2018-12-17 | 2020-06-23 | 菏泽高新区德源医药科技有限公司 | Waste gas utilization and filter equipment in plaster system of stewing |
| CN109876585B (en) * | 2019-04-26 | 2021-11-26 | 国药集团重庆医药设计院有限公司 | Traditional chinese medicine plaster production exhaust gas treatment system |
| CN110585844A (en) * | 2019-10-12 | 2019-12-20 | 杭州临安清云环保设备有限公司 | Plastic granulation waste gas treatment system and waste gas treatment process |
| CN111804095A (en) * | 2020-08-12 | 2020-10-23 | 河北医药化工设计有限公司 | A exhaust treatment device for processing of traditional chinese medicine plaster |
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