CN207838615U - A kind of spraying dedusting device for low-light resonance exhaust-gas treatment - Google Patents
A kind of spraying dedusting device for low-light resonance exhaust-gas treatment Download PDFInfo
- Publication number
- CN207838615U CN207838615U CN201721811397.8U CN201721811397U CN207838615U CN 207838615 U CN207838615 U CN 207838615U CN 201721811397 U CN201721811397 U CN 201721811397U CN 207838615 U CN207838615 U CN 207838615U
- Authority
- CN
- China
- Prior art keywords
- low
- spray
- exhaust
- light resonance
- supporting plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Separation Of Particles Using Liquids (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model discloses a kind of spraying dedusting devices for low-light resonance exhaust-gas treatment, including the gentle circulation mechanism of spray chamber, sealing structure for water, exhaust apparatus, filter device；The spraying dedusting device can effectively increase the time of contact of exhaust gas and shower water, the dust content carried secretly in the exhaust gas for entering low-light resonance emission-control equipment can be made to significantly reduce, so as to reduce the maintenance cost of low-light resonance emission-control equipment.
Description
Technical field
The utility model is related to exhaust-gas treatment field, a kind of specially spray for low-light resonance emission-control equipment removes
Dirt device.
Background technology
With the enhancing of current industry and commerce development and environmental consciousness, the worsening of living environment is by society
With the most attention of industrial circle.Wherein, flourishing due to industry, air pollution diffusion is rapid, the face that harmful exhaust is stretched
Product is vast, and the polluter in exhaust gas directly injures the health of people through respiratory system, various for this development trend
Technology and equipment about environment-friendly engineering is constantly developed therewith.Purified treatment in relation to industrial waste gas is then many environmental protection
One of most important project is faced in case.
The exhaust gas of industry processing at present mainly uses activated carbon method, condensation method, spray-absorption method etc., existing activated carbon to give up
Aspiration applying equipment is numerous and jumbled, and adsorbent is easily saturated, and needs to be replaced as frequently as, and regeneration off gases processing cost is high；Simple spray-absorption
Method is undesirable to organic exhaust gas effect, is only capable of removing partial organic substances and particulate matter in exhaust gas, it is difficult to reach discharge standard.Cause
This, up for providing a kind of emission-control equipment of good purification.
The patent document of notification number CN206229137U discloses a kind of low-light resonance exhaust processor, including body, machine
Body is equipped with waste gas reaction room, and body is equipped with air inlet port and air outlet for exhaust gas disengaging waste gas reaction room, and exhaust gas is anti-
Answer the indoor electrodeless ultraviolet lamp tube assembly for being equipped with microwave generator and be electrically connected with microwave generator, waste gas reaction room it is close go out
The side at gas end is equipped with a plurality of vertically arranged belt electrode ultraviolet lamp tube, and the first filter screen is equipped at air outlet.It can be incited somebody to action
Organic exhaust gas in waste gas reaction room by a large amount of ozone of generation and free hydroxyl strong destruction and redox emission molecule,
When emission molecule after redox is discharged out of waste gas reaction room, can also by the further oxidation processes of ultraviolet light,
Finally the dust particles in emission molecule are removed via filter screen at air outlet.
But since the dust particles in exhaust gas are provided in the outlet side of low-light resonance exhaust processor, that is, powder
Dirt particle will pass through an entire emission-control equipment, be just blocked in outlet side, and there is no absorption dust in whole device
The device of grain, which results in the crucial original papers that the dust particles in exhaust gas can be adsorbed on low-light resonance exhaust processor, also
It is that can be adsorbed on ultraviolet lamp tube outer surface, reduces the brightness of ultraviolet lamp, to reduces the oxidation processes effect of ultraviolet lamp.Even if every
A period of time can clear up internal dust, with stripping device shell because being not smooth inside the emission-control equipment
, cleaning difficulty is big, and when cleaning can cause large effect to the health of staff.
If before exhaust gas enters low-light resonance exhaust-gas treatment room, spraying and dedusting is carried out with water, the exhaust gas after dedusting again into
Optical resonance process chamber in a subtle way, so that it may with the effective dust reduced into low-light resonance process chamber, to solve the above problems.But
Be general spray dust collector exhaust gas and shower water time of contact it is shorter, dedusting it is ineffective, and in spraying and dedusting
That uses carries dust and the waste water of water-soluble harmful substance in exhaust gas, cannot be directly discharged into sewer, the waste water
Processing is again one and new needs problems faced.
Utility model content
The purpose of this utility model is to provide for a kind of spraying dedusting device for low-light resonance emission-control equipment.
The spraying dedusting device can effectively increase the time of contact of exhaust gas and shower water, can make useless into low-light resonance
The dust content carried secretly in the exhaust gas of Flash Gas Compression Skid System significantly reduces, so as to reduce the dimension of low-light resonance emission-control equipment
Protect cost.
In order to realize that above-mentioned purpose of utility model, the utility model use following technical scheme：One kind is humorous for low-light
Shake the spraying dedusting device of emission-control equipment, including the gentle circulator of spray chamber, sealing structure for water, exhaust apparatus, filter device
Structure；
The spray chamber bottom is equipped with air inlet, and spray gas outlet and multiple spray heads are equipped at the top of spray chamber；
Sealing structure for water is located at spray chamber bottom, and sealing structure for water includes the buffer structure for making spray liquid slowly flow；Water
Seal structure separates exhaust apparatus and spray chamber inner cavity；
Exhaust apparatus, the pipeline for connecting low-light resonance exhaust-gas treatment room；Exhaust apparatus is located at the top of filter device,
And exhaust apparatus is connected to filter device；
Filter device includes filter medium, and filter device bottom is equipped with filtered air inlet；
The gas circulation mechanism includes tracheae and air pump, and tracheae connects spray gas outlet and filtering dress at the top of spray chamber
The filtered air inlet in bottom set portion, air pump extract gas from spray gas outlet and are transported to filtered air inlet.
Preferably, the spraying dedusting device for low-light resonance emission-control equipment further includes liquid circulation mechanism, institute
It includes liquid pipe and liquid pump to state liquid circulation mechanism, and liquid pipe connects the spray head at the top of filter device bottom and spray chamber, and liquid pump extracts
Liquid is delivered in spray head.
Preferably, the filter medium is from top to bottom divided into gravel pebbles, quartz sand and activated carbon.
Preferably, the buffer layer is made of loose porous sponge material or soft fibre is made.
Preferably, the sealing structure for water includes three buffer structures, any buffer structure include partition board and
One buffer layer, the partition board are located at below buffer layer；It three buffer structure intervals and is arranged in parallel, any buffer structure
In partition board be in direct contact with buffer layer.
Preferably, the filter device includes shell, multiple drawers and the dismountable supporting plate of multiple drawer bottoms, and drawer is taken out
Drawing is set in opening, supporting plate closure internal channel, and supporting plate is equipped with multiple through-holes, and filter medium is placed on supporting plate.
Preferably, the drawer is additionally provided with panel, and the panel is located at shell exterior.
Preferably, handle is additionally provided with outside the panel, the handle is rod-like structure.
Preferably, the supporting plate is detachably arranged with drawer, and the inner wall bottom of drawer is equipped with the shelves item for support supporting plate,
The shelves item contacts supporting plate edge bottom.
Preferably, the supporting plate edge is equipped with breast board, and the breast board is integrally formed with supporting plate to be arranged.
Compared with prior art, a kind of spray for low-light resonance emission-control equipment of above-mentioned technical proposal is used
Dust-extraction unit has the advantages that：
One, using a kind of spraying dedusting device for low-light resonance emission-control equipment of the utility model, exhaust gas from
Spray chamber bottom is flowed down to upper air, shower water at the top of spray chamber, and flow direction of the exhaust gas in spray chamber is with shower water on the contrary, spray
After the direction of leaching liquid and gas flowing is on the contrary, spray liquid takes particulate matter out of out of gas, particulate matter is difficult to return to the gas after spray
In body, i.e., particulate contaminant with the flow direction of gas after spray is opposite with outgoing direction, at the same can greatly increase exhaust gas and
The time of contact of spray liquid increases dust removing effects.
Two, sealing structure for water is set between exhaust apparatus and spray chamber, in sealing structure for water spray liquid can slow transit through into
Enter to exhaust apparatus and filter device；But gas is difficult to this configuration so that gas directly can not enter row from spray chamber
Device of air, gas to be clean, which is only capable of moving upwards, enters gas outlet, into gas circulation mechanism, participates in purifying in next step.
Three, sealing structure for water can also not only be played the role of buffered spray liquid, spray liquid is avoided directly to drip with trapping
Enter in filter medium, cause the out-of-flatness of filter media surface, influences the effect of filtering.
Four, gas circulator is set so that exhaust gas after the washing of shower water, fills in undergoing spray chamber using filtering
It sets, plays the effect of double purification, further remove the dust in exhaust gas.
Five, the spray liquid being flowed into filter device purifies so that the particle in spray liquid by internal filter medium
Object can stay in filter medium, and preliminary purified treatment is carried out to spray liquid, and so that spray liquid is further carried out other makes
With or repeat spray use.
It six,, can be to sealing structure for water by controlling internal pressure in spray chamber when spray liquid slowly moves in sealing structure for water
The infiltration rate of interior spray liquid is controlled, and reduction spray chamber air pressure can reduce spray liquid infiltration rate and avoid in water seal mechanism
Water has oozed；It improves spray chamber air pressure and can be expedited infiltration rate, spray liquid is avoided to submerge in air inlet, during net gas,
The water seal height of sealing structure for water can be made to reach dynamic balancing with control pressure.
Description of the drawings
Fig. 1 is a kind of structure of spraying dedusting device embodiment for low-light resonance emission-control equipment of the utility model
Schematic diagram；
Fig. 2 is a kind of structure of spraying dedusting device filter layer for low-light resonance emission-control equipment in the present embodiment
Schematic diagram；
Fig. 3 is a kind of filter device knot of spraying dedusting device for low-light resonance emission-control equipment in the present embodiment
Structure schematic diagram；
In filter devices of the Fig. 4 for a kind of spraying dedusting device for low-light resonance emission-control equipment in the present embodiment
The structural schematic diagram of supporting plate；
Fig. 5 is sectional view at AA in Fig. 4；
Fig. 6 is that a kind of spraying dedusting device for low-light resonance emission-control equipment and low-light resonance are useless in the present embodiment
The assembling schematic diagram of Flash Gas Compression Skid System.
Reference numeral：1, air inlet；2, gas outlet；3, buffer layer；4, partition board；5, shell；51, gravel pebbles；52, quartzy
Sand；53, activated carbon；6, drawer；60, shelves item；61, handle；62, panel；7, supporting plate；70, breast board；71, through-hole；8, air pump；9、
Tracheae；10, liquid pump；11, liquid pipe；12, spray head；13, microwave generator；14, waste gas reaction room；A, spray chamber；B, water seal knot
Structure；C, exhaust apparatus；D, filter device.
Specific implementation mode
The utility model is described further below in conjunction with the accompanying drawings.
A kind of spraying dedusting device for low-light resonance emission-control equipment as shown in Figure 1, including spray chamber a, water
Seal structure b, exhaust apparatus c, the gentle circulation mechanisms of filter device d.
The bottoms spray chamber a are equipped with air inlet 1, and spray gas outlet and multiple spray heads 12 are equipped at the top of spray chamber a；Exhaust gas
Enter spray chamber a from the bottoms spray chamber a, for shower water from the spray head 12 at the top of spray chamber a from flowing down, gas-liquid flows to phase
Instead, time of contact and the contact area of exhaust gas and shower water can be increased.
Sealing structure for water b is located at the bottoms spray chamber a, and sealing structure for water b includes the buffering knot for making spray liquid slowly flow
Structure, sealing structure for water b separate exhaust apparatus c and the inner cavities spray chamber a.Buffer layer 3 can prevent exhaust gas from directly entering row from spray chamber a
Device of air c is directly entered low-light resonance emission-control equipment in turn.
Exhaust apparatus c, the pipeline for connecting low-light resonance exhaust-gas treatment room；Exhaust apparatus c is located at the tops filter device d
Portion, and exhaust apparatus c is connected to filter device d.Exhaust apparatus c can balance spray chamber a and exhaust apparatus for keeping in exhaust gas
Air pressure in c, avoiding sealing structure for water b or more, there are draught heads, and then influence the effect of sealing structure for water b；Simultaneously also allow for by
The exhaust gas of dust separation twice is discharged spraying dedusting device and enters low-light resonance emission-control equipment.
Filter device d includes filter medium, and the bottoms filter device d are equipped with filtered air inlet.Filter device d can be used for
The double purification of exhaust gas.
Gas circulation mechanism includes tracheae 9 and air pump 8, and tracheae 9 connects spray gas outlet and filtering dress at the top of spray chamber a
The filtered air inlet of the bottoms d is set, air pump 8 extracts gas from spray gas outlet and transported to filtered air inlet.Gas circulation mechanism is useless
The gas channel between dust removal process twice.
Spraying dedusting device for low-light resonance emission-control equipment as shown in Figure 1, further includes liquid circulation mechanism, liquid
Circulation mechanism includes liquid pipe 11 and liquid pump 10, and liquid pipe 11 connects the spray head 12 at the top of the bottoms filter device d and spray chamber a, liquid
10 extraction liquid of pump is delivered in spray head 12.It, can be by the dust absorbed in exhaust gas and solvable using the liquid circulation mechanism
The shower water of contact scar object is sent by pumping to by filtering in the spray head 12 at the top of spray chamber a.Since during being somebody's turn to do, spray
The effect of water essentially consists in the dust in absorption exhaust gas, because the requirement to water quality need not reach the requirement of life reference, institute
With by simple filtering, so that it may to recycle shower water, not only save water resource, but also the processing for solving spray sewage is asked
Topic.
Filter medium is from top to bottom divided into gravel pebbles 51, quartz sand 52 and activated carbon 53.Wherein gravel pebbles 51 and stone
Sand 52 plays the role of filtering, and activated carbon 53 plays absorption impurities in water, the water after three layer filtration, Ke Yida
To clear effect, the dust particles substance in exhaust gas can be absorbed to greatest extent, while can not increase volume with cycling use of water
Outer wastewater treatment burden, energy conservation and environmental protection.
The buffer layer 3 is made of loose porous sponge material or soft fibre is made.Loose porous
Sponge material and soft fibre can absorb moisture so that waterlogged buffer layer 3 forms water membrane, plays isolation
Gas exchanges between exhaust apparatus c and spray chamber a, while the spray liquid in spray chamber a not being hindered to be flowed into exhaust apparatus c
It is dynamic.
As shown in Fig. 2, sealing structure for water b includes three buffer structures, any buffer structure includes 4 He of partition board
One buffer layer 3, partition board 4 are located at 3 lower section of buffer layer；It three buffer structure intervals and is arranged in parallel, in any buffer structure
Partition board 4 is in direct contact with buffer layer 3.There is a certain distance between two buffer structures, will produce moisture film, plays isolation air
Effect；Three layers of moisture film, isolation is better, while effectively reducing the infiltration rate of spray liquid, avoids spray liquid in buffer layer 3 fast
Speed has been oozed.
As shown in figure 3, filter device d includes shell 5, the dismountable supporting plate 7 of multiple drawers 6 and 6 bottom of multiple drawers, take out
6 pull of drawer is set in opening, 7 closure of supporting plate, 5 internal channel, and supporting plate 7 is equipped with multiple through-holes 71, is placed on supporting plate 7
Filter medium.Three layer filtration medium is placed in drawer, it can easy to clean and replacement filter medium.As shown in Figure 4 and Figure 5,
Drawer 6 is additionally provided with panel 62, and the panel 62 is located at outside shell 5, and handle 61 is additionally provided with outside panel 62, and the handle 61 is
Rod-like structure.The design of handle is set on panel, facilitates and extracts drawer out.
Supporting plate 7 is detachably arranged with drawer 6, and the inner wall bottom of drawer 6 is equipped with the shelves item 60 for support supporting plate 7, described
Shelves item 60 contacts 7 edge bottom of supporting plate.7 design for disassembly of supporting plate, facilitates and takes out entire supporting plate 7, be convenient to clean.
7 edge of the supporting plate is equipped with breast board 70, and the breast board 70 is integrally formed with supporting plate 7 to be arranged.
As shown in fig. 6, in the present embodiment a kind of spraying dedusting device for low-light resonance emission-control equipment and
The connection diagram of low-light resonance emission-control equipment, it can be seen that spraying dedusting device is installed at low-light resonance exhaust gas
It on the admission line for managing device, can allow exhaust gas before entering low-light resonance processing unit, just pass through dedusting twice, maximum possible
The dust reduced in exhaust gas reduce low-light to reduce influence of the dust to the effect of low-light resonance exhaust-gas treatment in exhaust gas
The maintenance of resonance emission-control equipment and maintenance cost.
The above is preferred embodiments of the present invention, is not departed from for those of ordinary skill in the art
Under the premise of the utility model principle, several variations and modifications can also be made, these also should be regarded as the protection of the utility model
Range.
Claims (9)
1. a kind of spraying dedusting device for low-light resonance exhaust-gas treatment, it is characterised in that：Including spray chamber（a）, water seal knot
Structure（b）, exhaust apparatus（c）, filter device（d）Gentle circulation mechanism；
The spray chamber（a）Bottom is equipped with air inlet（1）, spray chamber（a）Top is equipped with spray gas outlet and multiple spray heads
（12）；
Sealing structure for water（b）Positioned at spray chamber（a）Bottom, sealing structure for water（b）It include the buffering knot for making spray liquid slowly flow
Structure；Sealing structure for water（b）Separate exhaust apparatus（c）And spray chamber（a）Inner cavity；
Exhaust apparatus（c）, the pipeline for connecting low-light resonance exhaust-gas treatment room；Exhaust apparatus（c）Positioned at filter device（d）
Top, and exhaust apparatus（c）With filter device（d）Connection；
Filter device（d）Including filter medium, filter device（d）Bottom is equipped with filtered air inlet；
The gas circulation mechanism includes tracheae（9）And air pump（8）, tracheae（9）Connect spray chamber（a）The spray gas outlet at top
And filter device（d）The filtered air inlet of bottom, air pump（8）Gas is extracted from spray gas outlet to transport to filtered air inlet.
2. a kind of spraying dedusting device for low-light resonance exhaust-gas treatment according to claim 1, it is characterised in that：Also
Including liquid circulation mechanism, the liquid circulation mechanism includes liquid pipe（11）And liquid pump（10）, liquid pipe（11）Connect filter device（d）Bottom
Portion and spray chamber（a）The spray head at top（12）, liquid pump（10）It extracts liquid and is delivered to spray head（12）It is interior.
3. a kind of spraying dedusting device for low-light resonance exhaust-gas treatment according to claim 1, it is characterised in that：Institute
It states filter medium and is from top to bottom divided into gravel pebbles（51）, quartz sand（52）And activated carbon（53）.
4. a kind of spraying dedusting device for low-light resonance exhaust-gas treatment according to claim 1, it is characterised in that：Institute
State sealing structure for water（b）Including three buffer structures, any buffer structure includes a partition board（4）With a buffer layer
（3）, the partition board（4）Positioned at buffer layer（3）Lower section；It three buffer structure intervals and is arranged in parallel, any buffer structure
In partition board（4）With buffer layer（3）It is in direct contact.
5. a kind of spraying dedusting device for low-light resonance exhaust-gas treatment according to claim 1, it is characterised in that：Institute
State filter device（d）Including shell（5）, multiple drawers（6）With multiple drawers（6）The dismountable supporting plate in bottom（7）, drawer（6）
Pull is set in opening, supporting plate（7）Closure（5）Internal channel, supporting plate（7）It is equipped with multiple through-holes（71）, supporting plate（7）On
Place filter medium.
6. a kind of spraying dedusting device for low-light resonance exhaust-gas treatment according to claim 5, it is characterised in that：Institute
State drawer（6）It is additionally provided with panel（62）, the panel（62）Positioned at shell（5）It is external.
7. a kind of spraying dedusting device for low-light resonance exhaust-gas treatment according to claim 6, it is characterised in that：Institute
State panel（62）Outside is additionally provided with handle（61）, the handle（61）For rod-like structure.
8. a kind of spraying dedusting device for low-light resonance exhaust-gas treatment according to claim 5, it is characterised in that：Institute
State supporting plate（7）With drawer（6）Detachable setting, drawer（6）Inner wall bottom be equipped be used for support supporting plate（7）Shelves item（60）,
The shelves item（60）Contact supporting plate（7）Edge bottom.
9. a kind of spraying dedusting device for low-light resonance exhaust-gas treatment according to claim 5, it is characterised in that：Institute
State supporting plate（7）Edge is equipped with breast board（70）, the breast board（70）With supporting plate（7）It is integrally formed setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721811397.8U CN207838615U (en) | 2017-12-22 | 2017-12-22 | A kind of spraying dedusting device for low-light resonance exhaust-gas treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721811397.8U CN207838615U (en) | 2017-12-22 | 2017-12-22 | A kind of spraying dedusting device for low-light resonance exhaust-gas treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207838615U true CN207838615U (en) | 2018-09-11 |
Family
ID=63422097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721811397.8U Expired - Fee Related CN207838615U (en) | 2017-12-22 | 2017-12-22 | A kind of spraying dedusting device for low-light resonance exhaust-gas treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207838615U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107930325A (en) * | 2017-12-22 | 2018-04-20 | 杭州博韵易环保科技有限公司 | A kind of spraying dedusting device for low-light resonance exhaust-gas treatment |
-
2017
- 2017-12-22 CN CN201721811397.8U patent/CN207838615U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107930325A (en) * | 2017-12-22 | 2018-04-20 | 杭州博韵易环保科技有限公司 | A kind of spraying dedusting device for low-light resonance exhaust-gas treatment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204051314U (en) | Lacquer spraying waste gas treatment system | |
| CN113101768A (en) | Waste gas treatment device | |
| CN206404499U (en) | Lacquer spraying waste gas processing unit | |
| CN108543404A (en) | A kind of injection molding machine emission-control equipment of avoidable secondary pollution | |
| CN207838615U (en) | A kind of spraying dedusting device for low-light resonance exhaust-gas treatment | |
| CN208839229U (en) | A kind of environment-friendly type industrial waste-gas purifier | |
| CN206924614U (en) | Sticky dust odor purification tower | |
| CN206713840U (en) | A kind of fish jar effluent treatment plant | |
| CN106823641A (en) | A kind of high protein fuel boiler tail gas dust cleaning apparatus | |
| CN107930325A (en) | A kind of spraying dedusting device for low-light resonance exhaust-gas treatment | |
| CN208591681U (en) | It is a kind of for purifying the air cleaning unit of smog of smoking | |
| CN207838594U (en) | A kind of dual dust-extraction unit for low-light resonance exhaust-gas treatment | |
| CN108579308A (en) | A kind of air cleaning unit for purifying smog of smoking | |
| CN107854934A (en) | A kind of dual dust arrester for low-light resonance exhaust-gas treatment | |
| CN204208418U (en) | A kind of Multi-function smoke-removing clarifier | |
| CN107435980A (en) | Multiple circulation air purification equipment | |
| CN210448615U (en) | Efficient active carbon adsorption desorption analytical equipment | |
| CN210874635U (en) | Multistage filter device for exhaust-gas treatment | |
| CN207838584U (en) | A kind of spraying dedusting device | |
| CN208553723U (en) | A kind of adsorption tower for industrial waste gas processing | |
| CN207838674U (en) | A kind of low-light resonance emission-control equipment with spraying dedusting device | |
| CN204619682U (en) | Waste gas Water spray treating apparatus | |
| CN209188406U (en) | Stench and flue gas purification device during a kind of creek curing sludge brickmaking | |
| CN108554119A (en) | A kind of calcium hypochlorite production exhaust gas processing device | |
| CN108619828A (en) | A kind of printing house's waste gas purification apparatus |
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: 20180911 Termination date: 20201222 |