CN206184241U - Full automatically cleaned device of laboratory acid mist waste gas - Google Patents
Full automatically cleaned device of laboratory acid mist waste gas Download PDFInfo
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- CN206184241U CN206184241U CN201621248695.6U CN201621248695U CN206184241U CN 206184241 U CN206184241 U CN 206184241U CN 201621248695 U CN201621248695 U CN 201621248695U CN 206184241 U CN206184241 U CN 206184241U
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- waste gas
- shower
- purifying column
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Abstract
The utility model provides a full automatically cleaned device of laboratory acid mist waste gas, relates to the processing technique field of waste gas, and including waste gas collecting main way, the small transfer line is collected to a plurality of waste gas, the input of collecting the small transfer line at every waste gas sets up two fume hoods respectively, the air intake of purifying column lower part is connected to the output that the waste gas collecting main was said, the purifying column includes casing, upper spraying pipe, lower shower, a pall ring layer, the 2nd pall ring layer, be equipped with exhaust outlet on the casing, set up the defroster at exhaust outlet, the defroster is connected through frequency conversion fan and delivery pipe, upper spraying pipe, lower shower advance water piping connection circulating water pump's output respectively through the circulation fluid, circulating water pump's input and circulation tank are connected, circulation tank's the input and the sub -unit connection of purifying column, circulation tank connects the output of dosing pump through adding the pencil, and naoh absorption liquid storage tank is connected to the input of dosing pump. The utility model discloses the energy consumption is low, purification efficiency is high, application scope is wide.
Description
Technical field
The utility model is related to the treatment draining technology of the processing technology field of waste gas, particularly laboratory acid mist waste gas.
Background technology
Laboratory acid mist waste gas refer to some have compared with severe corrosive vaporific acidic materials, be typically distributed in air
Acid mist particle very little, its particle diameter is no more than 10 μm.Particle compared to mist is smaller, but is between water smoke and cigarette higher than the humidity of cigarette
Pollutant between gas.The formation of laboratory acid mist waste gas mainly has two kinds of approach, and one is the evaporation on acid solution surface, acid molecule
Air inlet, absorbs moisture and condenses and form acid mist drop, and two is the bubble that chemically reacts and produce in acid solution, and bubble is floating
Go out explosion after liquid level, dropping liquid is taken out of acid mist is formed into air.
Hydrochloric acid, nitric acid, sulfuric acid and other acid are often used in the laboratory and research department of the industries such as mine, geology, environment, metallurgy,
In the acid waste gas for heating with discharged during sour boiling.Overwhelming majority laboratory acid mist waste gas is used through fume hood not at present
Through administering the mode of directly discharge, or roof is focused on using pipeline, the mode that blower fan is directly discharged, the laboratory also having uses
Distributing ventilating fan is directly discharged.Though concentrate directly discharge the working environment of operating personnel of minor betterment to a certain extent,
But still pollution is directly caused to air, severely impact the ecological environment of surrounding area.
Government all extremely pays close attention to the exhaust-gas treatment to large-scale industrial production always, but often ignores at laboratory exhaust gas
Reason.Although the latter's discharge capacity is typically small, long term accumulation, its summation is also extremely considerable.And, it is different from standardized
Industrial flow, the often more various and difficult survey of the species and concentration of contained pollutant, more likely produces one in laboratory exhaust gas
A little chemical substances with specific toxicity, with the presence of extremely serious potential danger.Domestic existing master gas equipment is all
It is acid mist at normal temperatures that the sour gas asked for factory's acid treatment car carries out administering this acid, is single acid, as laboratory
The waste gas for so being mixed with the small dispersion of acid amount, high-temperature heating, several acid, all treatment facility without counterpart, although in this way, but state
The characteristics of interior some units are directed to laboratory acid waste gas is it is proposed that cross some resolutions.Due to experimental waste liquid complicated component,
It is difficult to reach preferable treatment effect using traditional handling process.Therefore, it is necessary to the waste gas that laboratory produces is acted upon,
To reach discharge standard.
Utility model content
The utility model purpose is to be directed to problem above, there is provided a kind of simple structure, energy consumption are low, purification efficiency is high and suitable
With the wide laboratory acid mist waste gas Full automatic purifying device of scope.
The utility model includes gas sampling main pipeline, some gas sampling branch pipe(tube)s, the gas sampling described in every
The output end of branch pipe(tube) is connected on gas sampling main pipeline；It is respectively provided with the gas sampling branch pipe(tube) described in every
Two fume hoods, motorized adjustment air-valve is respectively provided between the fume hood and gas sampling branch pipe(tube) described in each；The waste gas
The air inlet of the output end connection purifying column bottom in collecting main road；
The purifying column includes housing, upper shower, lower shower, the first Pall ring filler layer, the second Pall ring filler
Layer；The upper shower, the first Pall ring filler layer, lower shower and the second Pall ring filler layer are along body height direction by upper
It is sequentially arranged under；Spiral nozzle on being set on shower on described, spiral nozzle under being set on the lower shower；
At least one visor, at least one manhole are respectively equipped with the housing；In purifying column inner chamber bottom, glass tube is set
Liquid level gauge；End is provided with waste gas outlet on the housing, and demister is set in the waste gas outlet；The demister passes through frequency conversion
Blower fan is connected with delivery pipe, and silencer is set between the delivery pipe and frequency conversion fan；
The upper shower, lower shower connect the output end of water circulating pump by circulation fluid water inlet pipe respectively, described
Regulating valve, flowmeter are set on circulation fluid water inlet pipe；The input of the water circulating pump is connected with cyclic water tank；The recirculated water
The input of case is connected by connecting tube with the bottom of purifying column；Atmospheric valve is additionally provided with the lower case of the purifying column；
The cyclic water tank connects the output end of dosing pump, the input connection hydroxide of the dosing pump by chemical feed pipe
Sodium absorbing liquid storage tank；In the inner chamber of the NaOH absorbing liquid storage tank, mixer is set；The NaOH absorbing liquid storage tank
Running water and the setting running water motor-driven valve on water supply pipe are connected by water supply pipe.
When in use, every layer of laboratory building sets two sets of fume hoods to the utility model, and fume hood is set according to experiment number of floor levels
Quantity, each fume hood top is equipped with motorized adjustment air-valve, when COMPUTER DETECTION to laboratory building fume hood is opened, according to experiment
Building fume hood opens total amount, automatically controls motorized adjustment air-valve open degree, in the state of negative pressure, the waste gas in fume hood is led to
Cross in threeway suction gas-collecting branch pipe.Every layer of laboratory building is provided with a gas-collecting branch pipe, useless in gas-collecting branch pipe in the state of negative pressure
Gas enters gas gathering manifold.
NaOH absorbing liquid storage tank is connected by dosing pump using PP pipes with cyclic water tank.NaOH absorbing liquid storage tank
Signal is reached computer by affiliated liquid level gauge, and when liquid level is less than certain value, running water electric control valve is opened, while startup is stirred
The machine of mixing is stirred, and mixer rotating speed is set to 120 revs/min（Rotating speed can be according to time situation setting computer parameter by becoming
Frequency blower fan is adjusted）.
Cyclic water tank is connected by circulating pump using PP pipes with shower, lower shower on purifying column, using connecting tube and
Purifying column bottom connects.Signal is reached computer by the affiliated ultrasonic level gage of cyclic water tank, when liquid level is less than certain value, is opened
Dynamic dosing pump is to addition NaOH absorbing liquid in cyclic water tank.Signal is reached meter by the affiliated PH meters of cyclic water tank, conductivity meter
Calculation machine, it is too low to carry out alarm absorbing liquid concentration, need to add NaOH to NaOH absorbing liquid storage tank.
The purifying column emission-control equipment method of operation is to open quantity according to laboratory building fume hood, and signal is reached into calculating
Machine, automatically controls circulating pump and circulation fluid electric control valve open degree, and the absorbing liquid in cyclic water tank is promoted on purifying column
In shower and lower shower.NaOH absorbing liquid nebulizes through upper spiral nozzle from upper shower and pours in filler, under
Shower nebulizes through upper spiral nozzle and pours in filler.Unnecessary absorbing liquid drops to purification tower bottom through connecting tube from filler
Into cyclic water tank, the cyclic process of NaOH absorbing liquid is completed.Waste gas enters purification using gas gathering manifold by air inlet
Tower bottom, in the presence of frequency conversion fan, adverse current rises waste gas, in the wetted surface gas-liquid contact of filler, occurs a series of
Physico reaction, and there is mass transport process due to concentration difference, the waste gas after purification is entered through demister dehydration by frequency conversion fan
Enter delivery pipe.Blower fan is connected by silencer with delivery pipe, and quantity is opened according to laboratory building fume hood, and signal is reached into calculating
Machine, automatically controls rotation speed of fan, completes the waste gas air draft after purification.
The utility model compared with prior art, has the following advantages that：
（1）It is general to use mixed processing technique for laboratory acid mist exhaust-gas treatment, or incineration treatment technology is used, it is difficult
With meet the requirement of environmental protection.The present invention uses acid mist spray column purification process technique, can fully achieve the qualified discharge of liquid waste processing,
And construction investment is saved, floor space is small, convenient operation and management.
（2）Frequency conversion fan, purifying column, filler, demisting layer, circulated sprinkling water lines, Full-automatic agent-feeding device etc. are used
Computer program is controlled, and realizes the precise control of reaction condition and processing procedure, it is ensured that the waste gas index after treatment reaches
Discharge standard, while greatly reducing the labour intensity of operating process.
（3）Device uses modularized design, with stronger combined, open and scalability.Increase fume hood number
Amount, need to only change the model specification of blower fan, and other devices are then without changing.
（4）Treatment of laboratory acid mist waste gas effect is significant of the present invention, hydrogen chloride gas (HCl), hydrogen fluoride gas (HF), ammonia
Gas (NH3), sulfuric acid mist (H2SO4), mist of chromic acid (CrO3), hydrocyanic acid gas (HCN), alkali vapor (NaOH), hydrogen sulfide gas
(H2S) average removal rate is up to more than 90%.Integrated treatment of the present invention suitable for laboratory acid mist waste gas.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Specific embodiment
As shown in figure 1, the utility model includes gas sampling main pipeline 1, three gas sampling branch pipe(tube)s 2, every waste gas
The output end for collecting branch pipe(tube) 2 is connected on gas sampling main pipeline 1；Set respectively on every gas sampling branch pipe(tube) 2
Two fume hoods 3 are put, motorized adjustment air-valve 4 is respectively provided between each fume hood 3 and gas sampling branch pipe(tube) 2；Gas sampling
The air inlet 6 of output end connection purifying column 5 bottom of main pipeline 1.
Purifying column 5 includes that housing 5-1, upper shower 7, lower shower 8, the first Pall ring filler the 9, second Pall ring of layer are filled out
The bed of material 10；The upper shower 7, the first Pall ring filler layer 9, Pall ring filler of lower shower 8 and second layer 10 are along housing 5-1
Short transverse is from top to bottom sequentially arranged；Spiral nozzle 11 is set on upper shower 7, spiral shell under being set on lower shower 8
Churning mouth 12；Two visors, 13, two manholes 14 are respectively equipped with housing 5-1；In the inner chamber bottom of purifying column 5, glass is set
Pipe liquid level gauge 15；Waste gas outlet 16 is provided with housing 5-1 upper ends, demister 17 is set in waste gas outlet 16；Demister 17 passes through
Frequency conversion fan 18 is connected with delivery pipe 19, and silencer 20 is set between delivery pipe 19 and frequency conversion fan 18.
Upper shower 7, lower shower 8 connect the output end of water circulating pump 22 by circulation fluid water inlet pipe 21 respectively, are following
Regulating valve 23, flowmeter 24 are set on ring liquid water inlet pipe 21；The input of water circulating pump 22 is connected with cyclic water tank 25；Recirculated water
The input of case 25 is connected by connecting tube with the bottom of purifying column 5；Atmospheric valve is additionally provided with the lower case of purifying column 5
26。
Cyclic water tank 25 connects the output end of dosing pump 28, the input connection hydroxide of dosing pump 28 by chemical feed pipe 27
Sodium absorbing liquid storage tank 29；In the inner chamber of NaOH absorbing liquid storage tank 29, mixer 30 is set；NaOH absorbing liquid storage tank 29
Running water and the setting running water motor-driven valve 32 on water supply pipe 31 are connected by water supply pipe 31.
Claims (1)
1. a kind of laboratory acid mist waste gas Full automatic purifying device, it is characterised in that：Including gas sampling main pipeline, some are given up
Gas collects branch pipe(tube), and the output end of the gas sampling branch pipe(tube) described in every is connected on gas sampling main pipeline；Every
Two fume hoods are respectively provided with gas sampling branch pipe(tube) described in root, the fume hood described in each and gas sampling branch pipe(tube) it
Between be respectively provided with motorized adjustment air-valve；The air inlet of the output end connection purifying column bottom of the gas sampling main pipeline；
The purifying column includes housing, upper shower, lower shower, the first Pall ring filler layer, the second Pall ring filler layer；Institute
State shower, the first Pall ring filler layer, lower shower and the second Pall ring filler layer along body height direction from top to bottom
It is sequentially arranged；Spiral nozzle on being set on shower on described, spiral nozzle under being set on the lower shower；Described
At least one visor, at least one manhole are respectively equipped with housing；In purifying column inner chamber bottom, glass tube liquid level is set
Meter；End is provided with waste gas outlet on the housing, and demister is set in the waste gas outlet；The demister passes through frequency conversion fan
It is connected with delivery pipe, silencer is set between the delivery pipe and frequency conversion fan；
The upper shower, lower shower connect the output end of water circulating pump by circulation fluid water inlet pipe respectively, in the circulation
Regulating valve, flowmeter are set on liquid water inlet pipe；The input of the water circulating pump is connected with cyclic water tank；The cyclic water tank
Input is connected by connecting tube with the bottom of purifying column；Atmospheric valve is additionally provided with the lower case of the purifying column；
The cyclic water tank connects the output end of dosing pump by chemical feed pipe, and the input connection NaOH of the dosing pump is inhaled
Receive liquid storage tank；In the inner chamber of the NaOH absorbing liquid storage tank, mixer is set；The NaOH absorbing liquid storage tank passes through
Water supply pipe connects running water and running water motor-driven valve is set on water supply pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621248695.6U CN206184241U (en) | 2016-11-22 | 2016-11-22 | Full automatically cleaned device of laboratory acid mist waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621248695.6U CN206184241U (en) | 2016-11-22 | 2016-11-22 | Full automatically cleaned device of laboratory acid mist waste gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206184241U true CN206184241U (en) | 2017-05-24 |
Family
ID=58727201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621248695.6U Expired - Fee Related CN206184241U (en) | 2016-11-22 | 2016-11-22 | Full automatically cleaned device of laboratory acid mist waste gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206184241U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106422727A (en) * | 2016-11-22 | 2017-02-22 | 扬州大学 | Full-automatic purification device for laboratory acid mist exhaust gas |
| CN108015082A (en) * | 2017-12-06 | 2018-05-11 | 徐州市环境监测中心站 | Special ventilating kitchen under the conditions of acid resolution in heavy metal-polluted soil detection |
| CN109420413A (en) * | 2017-08-21 | 2019-03-05 | 江苏佳鑫环保工程有限公司 | A kind of acid mist purifying tower of the air contaminant treatment convenient for control |
| CN111569571A (en) * | 2020-05-12 | 2020-08-25 | 兰德森膜技术南京有限公司 | Environment-friendly acid mist spray tower |
-
2016
- 2016-11-22 CN CN201621248695.6U patent/CN206184241U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106422727A (en) * | 2016-11-22 | 2017-02-22 | 扬州大学 | Full-automatic purification device for laboratory acid mist exhaust gas |
| CN109420413A (en) * | 2017-08-21 | 2019-03-05 | 江苏佳鑫环保工程有限公司 | A kind of acid mist purifying tower of the air contaminant treatment convenient for control |
| CN108015082A (en) * | 2017-12-06 | 2018-05-11 | 徐州市环境监测中心站 | Special ventilating kitchen under the conditions of acid resolution in heavy metal-polluted soil detection |
| CN108015082B (en) * | 2017-12-06 | 2023-09-05 | 徐州市环境监测中心站 | Special ventilation kitchen under acid digestion condition in soil heavy metal detection |
| CN111569571A (en) * | 2020-05-12 | 2020-08-25 | 兰德森膜技术南京有限公司 | Environment-friendly acid mist spray tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170524 Termination date: 20191122 |