CN2041247U - Exhaust-gas clarifier for type casting machine - Google Patents
Exhaust-gas clarifier for type casting machine Download PDFInfo
- Publication number
- CN2041247U CN2041247U CN 88218752 CN88218752U CN2041247U CN 2041247 U CN2041247 U CN 2041247U CN 88218752 CN88218752 CN 88218752 CN 88218752 U CN88218752 U CN 88218752U CN 2041247 U CN2041247 U CN 2041247U
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- CN
- China
- Prior art keywords
- purifying box
- oil
- porous barrier
- shell
- clarifier
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Abstract
The utility model relates to an efficient device for eliminating the lead fume and the organic waste gas pollution in the work place of the type casting machine, which comprises a gas collection cover, a communicating pipe, a purifier case, an exhaust blower, and a purifying box. The mixed absorbing liquid of the purified lead fume and the organic waste gas is arranged in the purifying box; a porous partition and an al-[2]o-[3] ball shape filler are arranged on the upper part of the absorbing liquid. The gas purified by the utility model can achieve the national prescribed emission standard.
Description
The utility model relates to a kind of clarifier that produces waste gas when typecaster is worked, and produces the clarifier of lead fume and organic exhaust gas when particularly using blend absorbent can purify simultaneously typecaster work.
Typecaster is an indispensable general-purpose machinery in the printing industry, in the typefounding process, needs and will be heated to 300～400 ℃ in the market pot of this machine with the font of crossing (or leads), makes font (or leads) fusing, casts new word (or new leads) then.In the old font process of fusing, above market pot, not only produce a large amount of lead fumes well known, be plumbous steam and tiny lead oxide particulate, and since old font on rear evaporations of in market pot, being heated such as kerosene, printing ink, machine oil, be decomposed to form the organic exhaust gas such as a large amount of oil vapours, oil smoke and hydro carbons malodorant.Yet the improvement to these organic exhaust gas does not so far attract much attention as yet.In this environment, work for a long time, lead fume can cause headache, dizziness, unable, failure of memory, sleep-disorder, poor appetite, abdomen purulence and stomachache etc., very big to human health damage, and the oil vapour that produces, the organic matter of oil smoke and hydro carbons stench, its complicated component, they stimulate the staff sense of smell, cause that the staff detests, and impairs one's health.Therefore, must be administered this.
The existing lead fume clarifier that is used for typecaster on the existing domestic market; as " the injection filtering type lead fume clarifier " of Chenzhou, Hunan environment protection equipment factory production, but it is to adopt the water pump injection to form negative pressure, extracts the waste gas of market pot top; wash with water then, filter paper filters the method for lead fume.This clarifier only can purify lead fume, can not cleaning organic waste gas.And bleed and use the water pump injection, rate of air sucked in required is little (about 30 meters
3/ hour), the waste gas of market pot top can not be taken out processing fully, along with the deposition of lead fume on the filter paper, resistance increases gradually, and the tolerance of processing reduces thereupon.The utility model is a kind of blend absorbent that utilizes, through chemical reaction and two kinds of means of Physical Absorption, and the clarifier of simultaneously organic waste-gas purifications such as lead fume and oil vapour, oil smoke and hydro carbons malodorant being processed.At present, at home and abroad not yet find this can purify that lead fume again can cleaning organic waste gas the technology report of typecaster clarifier.
The purpose of this utility model provides a kind of lead fume that typecaster when work produce and typecaster catalytic converter of organic exhaust gas of purifying, and this clarifier has that the exhausted air quantity of processing is big, and volume is little, and fitting operation is simple, characteristics such as good purification.
The purpose of this utility model is achieved in that the typecaster catalytic converter is made up of gas skirt, communicating pipe, clarifier shell, air exhauster and purifying box etc.The gas skirt Main Function is the waste gas of collecting typecaster market pot top.Communicating pipe is communicated with gas skirt, air exhauster and three parts of purifying box.Purifying box has and does not have the purifying box of end face shell, top at the sidewall of this shell is provided with water inlet pipe, the bottom is provided with the drainage conduit with valve, blend absorbent is housed in purifying box, this absorption liquid is mixed by the volume ratio of 4～8:1 by water layer and oil reservoir and forms, wherein water layer is the aqueous solution that contains 0.3～10% acetic acid and 1～20% oxalic acid, oil reservoir is a kind of oil or the two kinds of miscellas in diesel oil, turbine oil, the pumping fluid, above blend absorbent, be provided with porous barrier, at porous barrier Al be housed
2O
3Ball-type packing is provided with the observation window of observable blended absorbent liquid level height at the sidewall of purifying box shell.After opening blower fan, clarifier is started working, typecaster market pot top contain lead fume and organic waste gas by placing the market pot top gas skirt and communicating pipe by air exhauster suction purifying box, waste gas through with purifying box in the blend absorbent haptoreaction after, the mixed absorption liquid of lead fume in the waste gas and organic matter purifies, again the Al above placing porous barrier
2O
3Ball-type packing further purifies, and the steam vent from the clarifier shell is discharged at last.Water layer in the blend absorbent, its effect are with the plumbous steam (Pb) in the lead fume, lead monoxide (PbO) and lead orthoplumbate (Pb
3O
4) dissolve, precipitate and remove through chemical reaction.Oil reservoir in the blend absorbent, its effect are the organic matter absorption cleanings that kerosene, machine oil, printing ink etc. is evaporated and decompose generation.Al
2O
3Ball-type packing plays suction-operated to lead fume.
Typecaster waste gas is through the utility model purified treatment, and its lead tolerance is less than 0.03mg/m
3, content of organics reaches national specified discharge standard less than 1PPm, can directly discharge, and need not to install any ventilation shaft again.The utility model also can be used for linecasting machine and purifies lead fume and organic exhaust gas.It is the device of a kind of effective elimination typecaster, linecasting machine workplace lead fume and Organic Waste Gas Pollution.
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a typecaster catalytic converter generalized section;
Fig. 2 is the purifying box generalized section;
Fig. 3 is the porous barrier vertical view.
Among the figure: (1) gas skirt, (2) communicating pipe, (3) clarifier shell, (4) air exhauster, (5) purifying box, (6) market pot, (7) typecaster, (2-1) purifying box shell, (2-2) Al
2O
3Ball-type packing, (2-3) porous barrier, (2-4) air inlet pipe, (2-5) blend absorbent, (2-6) with the drainage conduit of valve, (2-7) water inlet pipe, (2-8) liquid level observation window.
Open air exhauster (4), clarifier is started working, market pot (6) top is contained lead fume and organic waste gas through gas skirt (1) and is drawn into purifying box (5) communicating pipe (2) and entered by air inlet pipe (2-4) among the blend absorbent (2-5), after purifying with blend absorbent (2-5) haptoreaction, again through porous barrier (2-3) and Al
2O
3The slit of Ball-type packing (2-2) is got rid of from the steam vent that the clarifier shell is provided with.Blend absorbent (2-5) is made up of water layer and oil reservoir two parts, the volume ratio of water layer and oil reservoir is 4～8:1, wherein water layer is by the aqueous solution that contains 0.3～10% acetic acid and 1～20% oxalic acid, and oil reservoir is a kind of oil or the two kinds of miscellas in diesel oil, turbine oil, the pumping fluid.The clarifier shell is made with metal material, which is provided with steam vent.The available stainless steel material of purifying box shell (2-1) or form with plastic production.Purifying box shell (2-1) does not have end face.The top position of the blend absorbent (2-5) that in purifying box (5), is equipped with, be provided with porous barrier (2-3), available stainless steel material of porous barrier (2-3) or plastic production, can be designed as three layers of porous barrier that are spaced apart up and down, the hole diameter on every layer of dividing plate is 2～5 millimeters.On every layer of porous barrier or at the dividing plate of the top one deck, place Al
2O
3Ball-type packing (2-2).The effect of porous barrier (2-3) is to stop that blend absorbent (2-5) outflows owing to waste gas enters the liquid splash that makes progress, and can make the mixed more fully absorption liquid of waste gas (2-5) haptoreaction purify simultaneously.Al
2O
3Ball-type packing (2-2) has the absorption lead fume and stops the effect of blend absorbent (2-5) outflow.On the sidewall of purifying box shell (2-1), be provided with water inlet pipe (2-7) at an upper portion thereof.By this water inlet pipe, can replenish as required the moisture that increases in the blend absorbent (2-5).Be provided with the drainage conduit (2-6) of band valve in its underpart, the blend absorbent that lost efficacy can be drained by this drainage conduit.For working conveniently, on the sidewall of purifying box shell (2-1), should be provided with the observation window (2-8) that can observe blend absorbent (2-5) liquid level, observation window can be made of transparent glass material.
Embodiment 1: with 180 watts of air exhausters, the exhausting amount is 〉=420 meters
3/ hour, blast 〉=50 millimeters of water, the blend absorbent water layer is made up of the aqueous solution that contains 10% acetic acid and 20% oxalic acid, and consumption is 4 liters, and oil reservoir adds each 0.5 liter of composition of turbine oil with diesel oil.With the waste gas of above-mentioned purification utensil typecaster, use Atomic Absorption Spectrometry, lead fume content is 0.218 milligram/meter before purifying
3, after the purification be 0.012 milligram/meter
3Measure with the gas-chromatography flame ionization detector, the content of organics of gas before purifying (on average calculating to contain 8 carbon atoms) 4.0PPm is 0.40PPm after purifying.Purifying rate about 90%.Embodiment 2: used air exhauster is with example 1, the blend absorbent water layer is by containing 0.3% acetic acid and 1% oxalic acid aqueous solution is formed, amount to 8 liters, oil reservoir turbine oil (or vacuum oil pump oil) 1 liter, with the waste gas that produces on the above-mentioned purification utensil typecaster market pot, purify leaded 0.015 milligram/meter of back gas after measured
3, organic exhaust gas content is 0.64PPm.
Claims (2)
1, a kind of typecaster catalytic converter, by gas skirt (1), communicating pipe (2), clarifier shell (3), the compositions such as air exhauster (4) and purifying box (5), it is characterized in that purifying box (5) is one not have the purifying box shell (2-1) of end face, top at the sidewall of this shell is provided with water inlet pipe (2-7), the bottom is provided with the drainage conduit (2-6) with valve, blend absorbent (2-5) is housed in purifying box (5), this absorption liquid by water layer and oil reservoir by 4～8: 1 volume ratio is mixed and is formed, wherein water layer is the aqueous solution that contains 0.3～10% acetic acid and 1～20% oxalic acid, oil reservoir is diesel oil, turbine oil, a kind of oil in the pumping fluid or two kinds of miscellas, be provided with porous barrier (2-3) in the top of blend absorbent (2-5), (2-3) is provided with Al at porous barrier
2O
3Ball-type packing (2-2) is provided with the observation window (2-8) of observable blend absorbent (2-5) liquid level at the sidewall of purifying box shell (2-1).
2, clarifier according to claim 1 is characterized in that the three layer porous barrier of porous barrier (2-3) for separating up and down, and the hole diameter on every layer of dividing plate is 2～5 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88218752 CN2041247U (en) | 1988-06-07 | 1988-06-07 | Exhaust-gas clarifier for type casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88218752 CN2041247U (en) | 1988-06-07 | 1988-06-07 | Exhaust-gas clarifier for type casting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2041247U true CN2041247U (en) | 1989-07-19 |
Family
ID=4851159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88218752 Withdrawn CN2041247U (en) | 1988-06-07 | 1988-06-07 | Exhaust-gas clarifier for type casting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2041247U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110559828A (en) * | 2019-09-06 | 2019-12-13 | 天津大学 | Small tail gas absorption and deodorization device for sludge composting tail gas treatment |
-
1988
- 1988-06-07 CN CN 88218752 patent/CN2041247U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110559828A (en) * | 2019-09-06 | 2019-12-13 | 天津大学 | Small tail gas absorption and deodorization device for sludge composting tail gas treatment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |