CN211411543U - Air filtering device of workshop for treating waste aluminum etching liquid - Google Patents

Air filtering device of workshop for treating waste aluminum etching liquid Download PDF

Info

Publication number
CN211411543U
CN211411543U CN201922100903.8U CN201922100903U CN211411543U CN 211411543 U CN211411543 U CN 211411543U CN 201922100903 U CN201922100903 U CN 201922100903U CN 211411543 U CN211411543 U CN 211411543U
Authority
CN
China
Prior art keywords
treatment tank
air
workshop
filtering device
air filtering
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
Application number
CN201922100903.8U
Other languages
Chinese (zh)
Inventor
孟繁征
陈德旺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Hangxing Hongda Chemical Co ltd
Original Assignee
Beijing Hangxing Hongda Chemical Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Hangxing Hongda Chemical Co ltd filed Critical Beijing Hangxing Hongda Chemical Co ltd
Priority to CN201922100903.8U priority Critical patent/CN211411543U/en
Application granted granted Critical
Publication of CN211411543U publication Critical patent/CN211411543U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The utility model relates to an air filtering device of a waste aluminum etching liquid treatment workshop, which comprises a treatment tank arranged outside the workshop and an air suction cover connected with the treatment tank, wherein the air suction cover is positioned at the top in the workshop; the spraying mechanism comprises a water pump, a circular pipe is arranged in the treatment tank, the water inlet of the water pump is communicated with the bottom of the treatment tank, the water outlet of the water pump is communicated with the circular pipe, a plurality of atomizing nozzles are connected to the circumferential surface of the circular pipe, the atomizing nozzles face the central position of the treatment tank, a conical plate is coaxially arranged in the treatment tank, the conical plate is fixedly connected with the inner wall of the treatment tank, a gap is reserved between the upper edge of the conical plate and the inner wall of the treatment tank, and the upper edge of the conical plate is higher than the atomizing nozzles. The utility model has the advantages that: and (3) treating and purifying the air in the internal space of the workshop to ensure that the air environment of the workshop is in a normal PH range.

Description

Air filtering device of workshop for treating waste aluminum etching liquid
Technical Field
The utility model relates to a useless aluminium sculpture liquid treatment facility field, concretely relates to air filter in useless aluminium sculpture liquid processing workshop.
Background
The waste aluminum etching liquid is waste liquid generated in a process after wet etching of an aluminum template in the thin film transistor liquid crystal display industry, and mainly comprises a mixed liquid of phosphoric acid, nitric acid and acetic acid, wherein the waste liquid generally comprises 50-60% of phosphoric acid, 5-10% of acetic acid, 3-5% of nitric acid, a small amount of heavy metal impurities (AL, Mo) and the like. The common aluminum scrap etching liquid is recycled and utilized by manufacturers with related qualifications, and phosphoric acid and acetic acid are extracted.
The equipment for extracting phosphoric acid acetic acid from the waste aluminum etching solution comprises a waste liquid tank 11 as shown in figure 1; a preheater 12 connected to the waste liquid tank 11; a first evaporator 13 connected to the preheater 12; a second evaporator 14 connected to the first evaporator 13; a third evaporator 15 connected to the second evaporator 14; a condenser 16 connected to the first evaporator 13, the second evaporator 14, and the third evaporator 15 at the same time; and an acetic acid finished product tank 17 connected to the condenser 16 and a phosphoric acid finished product tank 18 connected to the third evaporator 15. In the process of treating the waste aluminum etching liquid, firstly, the waste aluminum etching liquid is introduced into a preheater 12, the waste liquid is heated by the preheater 12 and then flows into a first evaporator 13, and since the boiling point of acetic acid is less than that of phosphoric acid, the acetic acid rises in a vaporization mode and flows into a condenser 16, and the acetic acid is liquefied under the condensation action of the condenser 16 and then enters an acetic acid finished product tank 17; and other liquid in the first evaporator 13 is sequentially introduced into the second evaporator 14 and the third evaporator 15 to vaporize the rest acetic acid in the waste aluminum etching liquid, so that the waste of the acetic acid is reduced, and the rest liquid is introduced into the phosphoric acid finished product tank 18 to realize the refining of the phosphoric acid and the acetic acid.
The in-process of aluminium scrap etching liquid handling, these acidic material can volatilize in the air in workshop through the junction of pipeline unavoidably for the pH value in workshop is acidity, if the staff is in acid operational environment for a long time, can cause the injury to the health.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, one of the purposes of the utility model is to provide an air filter in aluminium scrap etching liquid processing workshop, its advantage is to the air of workshop inner space handle the purification, makes the air circumstance in workshop be in normal PH scope.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
an air filtering device of a waste aluminum etching liquid treatment workshop comprises a treatment tank arranged outside the workshop and an air suction cover connected with the treatment tank, wherein the air suction cover is positioned at the top in the workshop, a spraying mechanism is arranged in the treatment tank, a water inlet pipe is connected with the circumferential surface of the treatment tank, and an air suction mechanism is arranged at the top of the treatment tank;
the spraying mechanism comprises a water pump, a circular pipe is arranged in the treatment tank, the water inlet of the water pump is communicated with the bottom of the treatment tank, the water outlet of the water pump is communicated with the circular pipe, a plurality of atomizing nozzles are connected to the circumferential surface of the circular pipe, the atomizing nozzles face the central position of the treatment tank, a conical plate is coaxially arranged in the treatment tank, the conical plate is fixedly connected with the inner wall of the treatment tank, a gap is reserved between the upper edge of the conical plate and the inner wall of the treatment tank, and the upper edge of the conical plate is higher than the atomizing nozzles.
By adopting the technical scheme, when the air filtering device works, the air suction mechanism is started to drive the air suction cover to suck air in a workshop, so that the air in the workshop enters the treatment tank, the water inlet pipe introduces an external water source into the treatment tank, the water pump works to drive water in the treatment tank to be sprayed out from the atomizing spray head, in the process that the acid gas floats upwards, water mist is in contact with acid substances in the air to dissolve the acid substances in liquid, the acidity of the air is reduced, so that the filtered air can be discharged into the external air through the air suction mechanism, the pollution of the acid gas to the external air is reduced, the space for the air to flow upwards is reduced due to the arrangement of the conical plate, the air is also guided into a gap between the conical plate and the inner wall of the treatment tank, the contact between the acid gas and the water mist is more sufficient, and the action range of the water mist to the acid gas is improved, and the water source used by the spraying mechanism does not need to adopt a flowing water source, and only needs to repeatedly utilize the water source remained in the treatment tank, thereby reducing the waste of water resources.
The present invention may be further configured in a preferred embodiment as: the tip of the conical plate is provided with a water flowing port.
Through adopting above-mentioned technical scheme, when water smoke at the in-process that handles jar internal flow, some liquid can drip in the inside of circular cone board, and the opening of running water mouth has reduced liquid and has accumulated in the inside of circular cone board, is convenient for to the centralized processing of liquid.
The present invention may be further configured in a preferred embodiment as: the top of ring pipe is provided with a crown plate, and the outer border rigid coupling of crown plate is on the inner wall of handling the jar, and the interior border of crown plate is located the minimum of crown plate to the interior border of crown plate is located the conical plate directly over.
Through adopting above-mentioned technical scheme, the setting of ring plate has played the water conservancy diversion effect to the flow of air, when the fast-speed striking of air in the below of ring plate, can make the liquid striking in the air on the ring plate to drip in the cone plate under the water conservancy diversion of ring plate, and drip in the bottom of handling the jar through the discharge orifice, thereby reduced liquid inflow induced drafts in the mechanism.
The present invention may be further configured in a preferred embodiment as: the air suction mechanism comprises an air suction pipe and a fan connected with one end of the air suction pipe; the other end of the air suction pipe is connected with the top of the treatment tank.
By adopting the technical scheme, the fan is started, so that suction is formed in the treatment tank, air in the vehicle compartment is driven to enter the air suction cover, air flow in the vehicle compartment is improved, and the efficiency of treating the acid gas is accelerated.
The present invention may be further configured in a preferred embodiment as: the aspiration channel is provided with a U type section, and the one end intercommunication of U type section handles the top of jar, and the other end intercommunication fan of U type section.
Through adopting above-mentioned technical scheme, if fan suction is great, in will handling jar liquid suction intake induced draft intraductal very likely, even discharge to outdoor from the fan wind gap, and the setting of U type section has not only prolonged the route that water smoke flows in induced draft intraductal, and through the striking of water smoke and induced draft intraductal wall for water smoke condenses into liquid, and stays the bottommost of U type section, thereby has reduced the direct discharge of liquid from the fan export.
The present invention may be further configured in a preferred embodiment as: the lowest point of the U-shaped section of the air suction pipe is connected with a water tap.
Through adopting above-mentioned technical scheme, tap's setting, the staff of being convenient for in time will remain the liquid in the suction pipe in time clear up.
The present invention may be further configured in a preferred embodiment as: the outlet end of the fan is connected with a vertically arranged induced duct, and the height of the induced duct is higher than that of a workshop.
Through adopting above-mentioned technical scheme, the air that the setting of induced duct will purify is vertical to be introduced aloft to reduce the influence of mobile air to operational environment.
To sum up, the utility model discloses a following at least one useful technological effect:
firstly, the direct emission of acid gas into the atmosphere is reduced. The acidic gas directly acts with the spraying mechanism, so that acidic substances in the air are dissolved in the liquid, the filtered air is discharged into the external air through the air suction mechanism, and the pollution of the acidic gas to the external air is reduced;
and secondly, the residue of liquid in the air suction pipe is reduced. The arrangement of the faucet is convenient for workers to timely clean the liquid remained in the air suction pipe.
Drawings
FIG. 1 is a schematic flow diagram of phosphoric acid-acetic acid separation in the prior art;
FIG. 2 is a schematic view showing the overall structure of the air filtration apparatus of the present embodiment;
FIG. 3 is a schematic diagram embodying an air suction mechanism;
FIG. 4 is a schematic view showing the internal structure of a treatment tank;
FIG. 5 is a schematic diagram showing the positional relationship of the filter cloth;
FIG. 6 is a schematic structural view of a discharge assembly.
In the figure, 11, a waste liquid tank; 12. a preheater; 13. a first evaporator; 14. a second evaporator; 15. a third evaporator; 16. a condenser; 17. a finished acetic acid tank; 18. a phosphoric acid finished product tank; 2. a treatment tank; 21. an air suction hood; 22. an air inlet pipe; 23. a water inlet pipe; 24. a drain pipe; 25. a drain valve; 26. a viewing port; 27. a transparent plate; 3. an air suction mechanism; 31. an air suction pipe; 32. a fan; 33. an induced draft pipe; 34. a filter cloth; 35. a U-shaped section; 36. a water drain valve; 4. a spraying mechanism; 41. a water pump; 42. a ring pipe; 43. a first water receiving pipe; 44. a second water receiving pipe; 45. an atomizing spray head; 46. a conical plate; 461. a water flowing port; 47. a ring plate; 5. an extension tank; 6. a discharging component; 61. placing a material box; 62. a material placing cover; 63. discharging the material pipe; 64. a connecting shaft; 65. a helical blade; 66. a hand wheel; 7. an auxiliary liquid stirring mechanism; 71. a pump body; 72. a first connecting pipe; 73. a second connecting pipe.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
An air filtering device of a waste aluminum etching liquid treatment workshop is shown in figure 2 and comprises a treatment tank 2 vertically arranged outside a work workshop, wherein two air suction covers 21 are erected at the top of the work workshop, the air suction covers 21 are communicated with the treatment tank 2 through an air inlet pipe 22, and the end part of the air inlet pipe 22 is connected to the peripheral surface of the treatment tank 2; a suction fan 32 mechanism 3 is arranged at the top of the treatment tank 2; a spraying mechanism 4 is also arranged in the treatment tank 2. When the suction fan 32 mechanism 3 works, air in a workshop can be driven to enter the treatment tank 2 through the suction hood 21, acidic substances in the air are dissolved in water through the work of the spraying mechanism 4, and filtered air is discharged to the treatment tank 2 through the suction fan 32 mechanism 3.
As shown in FIG. 3, a water inlet pipe 23 is connected to the circumferential surface of the treatment tank 2, and the other end of the water inlet pipe 23 is communicated with a municipal water pipe. The global of handling jar 2 is connected with a drain pipe 24, and drain pipe 24 is located the bottom of handling jar 2 to drain pipe 24's end connection has a drain valve 25, thereby is convenient for the staff in time handles the waste water in the handling jar 2.
As shown in fig. 4, the spraying mechanism 4 comprises a water pump 41 disposed at one side of the treatment tank 2, and two circular pipes 42 horizontally erected in the treatment tank 2, wherein the two circular pipes 42 are both located above the connection part of the air inlet pipe 22 and the treatment tank 2. A water inlet and a water outlet of the water pump 41 are respectively connected with a first water receiving pipe 43 and a second water receiving pipe 44, and the other end of the first water receiving pipe 43 is fixedly connected to the circumferential surface of the bottom of the water inlet tank and is communicated with the inside of the water inlet tank; the second water receiving pipe 44 is connected to the circumferential surfaces of the two loop pipes 42, respectively, and is communicated with the loop pipes 42. Two ring pipes 42 are coaxially arranged in the treatment tank 2 and are uniformly arranged along the height direction of the treatment tank 2, the two ring pipes 42 are tightly attached to the inner wall of the treatment tank 2, a plurality of atomizing spray heads 45 are fixedly connected to the peripheral surface of each ring pipe 42, the atomizing spray heads 45 are uniformly arranged along the annular direction of the ring pipes 42, and the end parts of each atomizing spray head 45 are downwards inclined and point to the central direction of the treatment tank 2.
When the spraying mechanism 4 works, firstly, a water source is connected into the treatment tank 2 through the water inlet pipe 23, the water depth is lower than the joint of the air inlet pipe 22 and the treatment tank 2, and when the water level reaches a specified height, the water supply of the water inlet pipe 23 is stopped; then the water pump 41 is started, so that the water source at the bottom of the treatment tank 2 sequentially enters the first water receiving pipe 43, the water pump 41, the second water receiving pipe 44 and the annular pipe 42 and is sprayed into the treatment tank 2 through the atomizing nozzle 45, the air in the workshop is sucked into the treatment tank 2 through the suction fan 32 mechanism 3, and the acidic substances in the air are dissolved in the water and drop at the bottom of the treatment tank 2 through the contact with the water mist, so that the spraying mechanism 4 performs a filtering action on the air in the treatment tank 2.
As shown in fig. 4, in order to make the water mist fully contact with the acidic air, two conical plates 46 are coaxially erected in the treatment tank 2, the two conical plates 46 are respectively located above the two circular pipes 42, and the openings of the conical plates 46 face upward, a gap is left between the edge of each conical plate 46 and the inner wall of the treatment tank 2, when the suction fan 32 mechanism 3 works, the air in the treatment tank 2 is driven to flow upward from the bottom, and the conical plates 46 are arranged so that the air can only pass through the gap between the conical plates 46 and the inner wall of the treatment tank 2, thereby reducing the flow range of the air, and the gap between the conical plates 46 and the inner wall of the treatment tank 2 is located at the atomizing nozzles 45, so that the air can be more fully contacted with the water mist, the flow space is reduced, the flow speed of the air is increased, and the filtering effect of the water mist on the air is also increased. Because atomizer 45 inclines downwards for atomizer 45 spun water smoke has downward impact force, even suction fan 32 constructs 3 and opens, drives the air and flows upwards, and water smoke is difficult for upwards gathering.
As shown in fig. 4, in order to reduce the suction of the water mist by the suction fan 32, a ring plate 47 is further disposed above each conical plate 46, the outer edge of the ring plate 47 is fixed to the inner wall of the treatment tank 2, and the inner edge of the ring plate 47 is inclined downward and is located above the conical plate 46. Part water smoke can strike the lower surface at the crown plate 47 under the effect of the in-process suction fan 32 mechanism 3 that flows along with the air, and water smoke condenses into the water droplet and flows into in the cone plate 46 along the lower surface of crown plate 47 under the action of gravity, and a water inlet 461 has been seted up to the tip angle of cone plate 46 for liquid that enters into the cone can in time drip to the bottom of treatment tank 2.
As shown in fig. 3, two viewing apertures 26 have still been seted up to the global of handling jar 2, and viewing aperture 26 evenly arranges along the direction of height of handling jar 2, and every viewing aperture 26 all seals a transparent plate 27 to the staff of being convenient for observes the inside behavior of spraying mechanism 4 of handling jar 2 through transparent plate 27, the staff's of being convenient for later maintenance.
As shown in fig. 3, the suction fan 32 mechanism 3 includes a suction duct 31, a fan 32, and an induced draft duct 33. One end of the air suction pipe 31 is connected to the top of the treatment tank 2 by a flange, and the other end of the air suction pipe 31 extends downwards along the height direction of the treatment tank 2 and is communicated with an air inlet of the fan 32 at the tail end of the air suction pipe 31. The induced draft duct 33 is vertically disposed and interconnected with an air outlet of the blower 32. By starting the fan 32, negative pressure is formed, air in the workshop is driven to be sucked into the air suction hood 21 and enter the treatment tank 2, and the spraying mechanism 4 fully acts with the air.
As shown in fig. 3 and 5, in order to reduce the moisture entering the air suction pipe 31, a layer of filter cloth 34 is further clamped at the flange connection position of the air suction pipe 31 and the treatment tank 2. When the inside air of treatment tank 2 enters into the in-process of aspiration channel 31, most steam can be adsorbed by filter cloth 34, thereby reduced the discharge of steam, and the middle part of aspiration channel 31 forms U type section 35, when the in-process that the air flows at U type section 35, steam in the air can strike the bottom at U type section 35, and make steam condense into the water droplet, because the unique structure of U type section 35, make the water droplet can persist in the bottom of U type section 35, be difficult for discharging outdoors through fan 32. A drain valve 36 is connected to the bottom of the U-shaped section 35 to facilitate the discharge of waste water accumulated at the bottom of the U-shaped section 35. The port of the induced duct 33 is higher than the height of the workshop, so that filtered air is discharged to the upper part of the workshop, the noise of the air outlet of the fan 32 is high, the induced duct 33 is arranged to guide the noise, and the influence on the working environment is reduced.
As shown in figure 3, an extension tank 5 is arranged beside the treatment tank 2, the extension tank 5 is communicated with the interior of the treatment tank 2, and the height of the extension tank 5 is lower than the joint of the air inlet pipe 22 and the treatment tank 2. When inlet tube 23 opened, the water source entered into in the treatment tank 2, and extension pond 5 forms the linker with treatment tank 2 to the depth of water condition in the treatment tank 2 is observed through the water level of extension pond 5 to the staff of being convenient for. And after the water source in the treatment tank 2 is used for a long time, most of the acidic substances in the air are dissolved in the water source in the treatment tank 2, so that the acidity of the water source is enhanced, and in order to reduce the corrosion of the acidic gas to the inner wall of the treatment tank 2 and the atomizing nozzle 45, a worker needs to monitor the acidity of the liquid in the treatment tank 2 by the market, so that the acidity and the alkalinity of the solution are adjusted by sodium hydroxide, and the service life of the wastewater is prolonged.
As shown in the figures 3 and 6, due to the arrangement of the extension tank 5, the worker can sample the wastewater in the treatment tank 2 when the spraying mechanism 4 works, so as to detect the pH value of the wastewater, and the discharge assembly 6 for containing sodium hydroxide is arranged above the extension tank 5, so that the worker can adjust the pH value of the wastewater on site. Blowing subassembly 6 includes the blowing box 61 of rigid coupling at the processing tank 2 outer peripheral face, the upper surface of blowing box 61 is equipped with an opening, the opening part articulates there is a blowing lid 62, the vertical rigid coupling in bottom surface of blowing box 61 has a blowing pipe 63, vertically in the blowing box 61 be provided with a connecting axle 64, the global length direction rigid coupling along connecting axle 64 of connecting axle 64 has a helical blade 65, connecting axle 64 and the coaxial setting of blowing pipe 63, helical blade 65 lower extreme is located blowing pipe 63, and helical blade 65's diameter equals the internal diameter of blowing pipe 63, the roof of blowing box 61 is worn out to the upper end of connecting axle 64, the coaxial rigid coupling of up end of connecting axle 64 has a hand wheel 66. The staff can store the sodium hydroxide in the blowing box 61 at ordinary times, when the pH of waste water in the jar 2 is handled in needs allotment, drives helical blade 65 through hand wheel 66 and rotates for the sodium hydroxide drops from the lower port of blowing pipe 63 along helical direction of helical blade 65, and the staff can be as required the required adjustment sodium hydroxide's of sodium hydroxide the blowing volume, thereby has improved staff's operating efficiency.
As shown in fig. 3, an auxiliary liquid stirring mechanism 7 for accelerating the dissolution of sodium hydroxide is further disposed on one side of the extension tank 5, the auxiliary liquid stirring mechanism 7 includes a pump body 71 disposed beside the extension tank 5, a water inlet of the pump body 71 is connected with a first connecting pipe 72, the other end of the first connecting pipe 72 is communicated with the inside of the extension tank 5, a water outlet of the pump body 71 is connected with a second connecting pipe 73, and the other end of the second connecting pipe 73 is communicated with the bottom of the treatment tank 2. After the sodium hydroxide is put into the extension tank 5, the worker can open the pump body 71 to drive the liquid into the first connecting pipe 72, the pump body 71 and the second connecting pipe 73, so that the flow of the liquid in the extension tank 5 and the treatment tank 2 is accelerated, and the dissolution of the sodium hydroxide is accelerated.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (7)

1. The utility model provides an air filter of aluminium scrap etching liquid processing workshop which characterized by: the device comprises a treatment tank (2) arranged outside a workshop, and an air suction cover (21) connected with the treatment tank (2), wherein the air suction cover (21) is positioned at the top in the workshop, a spraying mechanism (4) is arranged in the treatment tank (2), a water inlet pipe (23) is connected with the circumferential surface of the treatment tank (2), and an air suction fan (32) mechanism (3) is arranged at the top of the treatment tank (2);
spray mechanism (4) including water pump (41), ring canal (42) of setting in processing jar (2), the water inlet of water pump (41) and processing jar (2) bottom communicate with each other, the delivery port and ring canal (42) of water pump (41) communicate with each other, be connected with a plurality of atomizer (45) on the global of ring canal (42), atomizer (45) are towards the central point of processing jar (2) and are put, coaxial one cone plate (46) that is provided with in processing jar (2), cone plate (46) are connected with processing jar (2) inner wall rigid coupling, the last border of cone plate (46) leaves the space with the inner wall of processing jar (2), the last border of cone plate (46) is higher than atomizer (45).
2. The air filtering device for the waste aluminum etching liquid processing workshop according to claim 1, wherein the air filtering device comprises: the tip of the conical plate (46) is provided with a water flowing port (461).
3. The air filtering device for the waste aluminum etching liquid processing workshop as claimed in claim 2, wherein: the top of ring pipe (42) is provided with a crown plate (47), and crown plate (47) outer border rigid coupling is on the inner wall of handling jar (2), and the interior border of crown plate (47) is located the minimum of crown plate (47) to the interior border of crown plate (47) is located conical plate (46) directly over.
4. The air filtering device for the waste aluminum etching liquid processing workshop according to claim 1, wherein the air filtering device comprises: the suction fan (32) structure (3) comprises a suction pipe (31) and a fan (32) connected with one end of the suction pipe (31); the other end of the air suction pipe (31) is connected with the top of the treatment tank (2).
5. The air filtering device for the waste aluminum etching liquid processing workshop according to claim 4, wherein the air filtering device comprises: the air suction pipe (31) is provided with a U-shaped section (35), one end of the U-shaped section (35) is communicated with the top of the treatment tank (2), and the other end of the U-shaped section (35) is communicated with the fan (32).
6. The air filtering device for the waste aluminum etching liquid processing workshop according to claim 5, wherein the air filtering device comprises: the lowest point of the U-shaped section (35) of the air suction pipe (31) is connected with a water tap.
7. The air filtering device for the waste aluminum etching liquid processing workshop according to claim 4, wherein the air filtering device comprises: the outlet end of the fan (32) is connected with a vertically arranged air guiding pipe (33), and the height of the air guiding pipe (33) is higher than that of a workshop.
CN201922100903.8U 2019-11-28 2019-11-28 Air filtering device of workshop for treating waste aluminum etching liquid Expired - Fee Related CN211411543U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922100903.8U CN211411543U (en) 2019-11-28 2019-11-28 Air filtering device of workshop for treating waste aluminum etching liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922100903.8U CN211411543U (en) 2019-11-28 2019-11-28 Air filtering device of workshop for treating waste aluminum etching liquid

Publications (1)

Publication Number Publication Date
CN211411543U true CN211411543U (en) 2020-09-04

Family

ID=72247409

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922100903.8U Expired - Fee Related CN211411543U (en) 2019-11-28 2019-11-28 Air filtering device of workshop for treating waste aluminum etching liquid

Country Status (1)

Country Link
CN (1) CN211411543U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115055234A (en) * 2022-06-01 2022-09-16 重庆天戈陶瓷有限公司 Waste recovery device for ceramic processing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115055234A (en) * 2022-06-01 2022-09-16 重庆天戈陶瓷有限公司 Waste recovery device for ceramic processing

Similar Documents

Publication Publication Date Title
CN206566678U (en) A kind of spray column
CN201168670Y (en) Pump-free water curtain spray chamber
CN111888903A (en) Industrial waste gas desulfurization dust collector
CN211411543U (en) Air filtering device of workshop for treating waste aluminum etching liquid
CN202207535U (en) High-efficient wet type smoke gas purification and dust collection device for smelting rare precious metals
CN211411542U (en) A air filter for aluminium scrap etching liquid refines workshop
CN210206306U (en) Water bath dust removal device of lime digester for steelmaking
CN208990552U (en) A kind of recyclable device for acid waste gas
CN211435675U (en) Air filtering device for acidic working environment
CN205700000U (en) A kind of electric automatization industrial dedusting device
CN206027334U (en) Improved generation sanding room dust collecting equipment
CN213375791U (en) Harmful gas treatment structure for spraying
CN212068171U (en) Building engineering construction dust collector
CN214130748U (en) Regional air purification device
CN205245807U (en) Flue gas treatment device
CN211328715U (en) Wet dust removal equipment
CN105903297A (en) Workshop dust removal system
CN110614002A (en) Wet dust removal equipment
CN214972939U (en) Ammonia purification treatment device
CN211487166U (en) A spray column for exhaust-gas treatment
CN201088098Y (en) Mosquito incense spray insecticide machine with waste gas condensation recovery function
CN211753727U (en) Pneumatic rotary spray tower
CN213193010U (en) Self-cleaning formula spray tower system
CN216909725U (en) Mine operation dust device
CN215692862U (en) Hierarchical dust removal processing structure

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200904

CF01 Termination of patent right due to non-payment of annual fee