Ammonia gas absorption and purification device for aluminum ash hazardous waste warehouse

Abstract

The utility model relates to the technical field of waste gas purification, in particular to an ammonia gas absorption and purification device for an aluminum ash hazardous waste warehouse, which not only increases the gas-liquid contact area, accelerates the ammonia gas absorption rate of spray liquid by arranging a fan, improves the ammonia gas absorption and purification efficiency, but also can treat and recycle waste liquid, thereby reducing the production cost. The utilization of fresh water is reduced, and water resources are saved; comprising a wastewater treatment mechanism; the device further comprises an absorption mechanism, a turbulent flow mechanism, a spraying mechanism and a backflow mechanism, the absorption mechanism is installed on the wastewater treatment mechanism and disperses ammonia gas, the turbulent flow mechanism is installed on the absorption mechanism and accelerates the reaction of the ammonia gas and spraying liquid, and the spraying mechanism is installed on the absorption mechanism and conveys the spraying liquid into the absorption mechanism. And the backflow mechanism is mounted on the spraying mechanism and conveys the treated water back into the spraying mechanism.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of waste gas purification, in particular to an ammonia gas absorption and purification device for aluminum ash dangerous waste storage. BACKGROUND

[0002] A lot of by-products are produced in the process of aluminum smelting and production and processing, aluminum ash as the main by-product of aluminum industry is produced in all aluminum melting processes, the content of aluminum accounts for about 1% to 2% of the total loss in the process of aluminum production and use, in the past, people discarded aluminum slag as waste, which not only caused waste of aluminum resources, but also caused environmental pollution.

[0003] The existing ammonia gas absorption and purification device for aluminum ash dangerous waste storage, such as the ammonia gas and fluorine gas absorption and purification device for aluminum ash dangerous waste storage disclosed in the utility model patent with application number 202321441445.4, mainly comprises a gas conveying pipeline, an explosion-proof fan, an ammonia gas absorption and purification tower, a fluorine gas absorption and purification tower, and an intelligent control cabinet, one end of the gas conveying pipeline is in communication with the aluminum ash dangerous waste storage; in use, according to the ammonia gas concentration signal and the fluorine gas concentration signal collected by the ammonia gas sensor and the fluorine gas sensor, the collected signals are compared with the concentration values set by the intelligent control cabinet, when the ammonia gas concentration and the fluorine gas concentration of any gas reach the set values, the intelligent control cabinet controls the explosion-proof fan to open, when the ammonia gas concentration and the fluorine gas concentration both reach the set fluorine gas concentration values, the ammonium salt explosion-proof mortar pump and the fluorine salt explosion-proof mortar pump open, and vice versa.

[0004] However, the existing purification devices mostly increase the number of spray towers to improve the absorption effect, which occupies a large area and increases the treatment cost, and a large amount of wastewater is produced in the purification process, which may cause new pollution sources if not treated. UTILITY MODEL CONTENT

[0005] To solve the above technical problems, the utility model provides an ammonia gas absorption and purification device for aluminum ash dangerous waste storage, which not only increases the gas-liquid contact area, but also accelerates the ammonia gas absorption rate of the spray liquid by setting a fan, improves the ammonia gas absorption and purification efficiency, can treat and reuse the waste liquid, reduces the use of fresh water, and saves water resources.

[0006] The utility model discloses an ammonia gas absorption and purification device for aluminum ash dangerous waste warehouse, which comprises a wastewater treatment mechanism; further comprises an absorption mechanism, a turbulence mechanism, a spraying mechanism and a reflux mechanism, the absorption mechanism is installed on the wastewater treatment mechanism and disperses ammonia gas, the turbulence mechanism is installed on the absorption mechanism and accelerates the reaction of ammonia gas and spraying liquid, the spraying mechanism is installed on the absorption mechanism and delivers the spraying liquid into the absorption mechanism, and the reflux mechanism is installed on the spraying mechanism and delivers the treated water into the spraying mechanism; ammonia gas in the aluminum ash dangerous waste warehouse is delivered into the absorption mechanism, the spraying mechanism sprays the spraying liquid into the absorption mechanism to mix with the ammonia gas, absorbs the ammonia gas, simultaneously starts the turbulence mechanism to accelerate the reaction of ammonia gas and spraying liquid, enhances the ammonia gas absorption effect, and after reaction, the wastewater is delivered into the wastewater treatment mechanism, the staff delivers lime into the wastewater treatment mechanism, the lime reacts with the wastewater to purify the wastewater, after filtering the wastewater, the reflux mechanism delivers the wastewater into the spraying mechanism to mix, and reduces the waste of water resources.

[0007] Preferably, the wastewater treatment mechanism comprises a treatment box, a filter plate, a water tank, a sealing cover, a feeding pipe and a valve, the bottom end of the treatment box is connected with the ground, the inside of the treatment box is provided with a cavity, the filter plate is installed on the treatment box, the water tank is installed on the treatment box and communicates with the inside of the cavity of the treatment box, the sealing cover is rotatably installed on the treatment box, the bottom end of the feeding pipe communicates with the inside of the top end of the treatment box, and the valve is installed on the feeding pipe; the staff opens the sealing cover, delivers lime into the cavity of the treatment box, then opens the valve, and the waste liquid in the absorption mechanism is delivered into the cavity of the treatment box through the feeding pipe, so that the lime neutralizes the acidity of the waste liquid, and the waste liquid is filtered through the filter plate to remove the generated floating matter and enters the water tank.

[0008] Preferably, the absorption mechanism comprises a spraying tower, an air inlet pipe, a first check valve, a uniform plate, a filling layer and an air outlet pipe, the bottom end of the spraying tower communicates with the inside of the top end of the feeding pipe, the inside of the spraying tower is provided with an inner cavity, the air inlet pipe is installed on the spraying tower and communicates with the inside of the spraying tower, the first check valve is installed on the air inlet pipe, the uniform plate is installed in the inner cavity of the spraying tower, the filling layer is installed in the inner cavity of the spraying tower, and the bottom end of the air outlet pipe communicates with the inside of the top end of the spraying tower; the ammonia gas in the aluminum ash dangerous waste warehouse is delivered into the inner cavity of the spraying tower through the air inlet pipe, the first check valve is arranged to avoid ammonia gas backflow, the ammonia gas is dispersed through the uniform plate to increase the contact area of ammonia gas and spraying liquid, the filling layer preliminarily filters and absorbs the ammonia gas, and the air after absorption and purification is discharged through the air outlet pipe.

[0009] Preferably, the flow disturbing mechanism comprises a motor, a speed reducer, a transmission shaft, a first fan blade and a second fan blade, the bottom end of the motor is connected with the top end of the spray tower, the input end of the speed reducer is connected with the output end of the motor, the input end of the transmission shaft is connected with the output end of the speed reducer, the first fan blade is installed on the transmission shaft, and the second fan blade is installed on the transmission shaft and below the uniform plate; the motor is started, the motor drives the transmission shaft to rotate through the speed reducer, the transmission shaft drives the first fan blade and the second fan blade to rotate, the first fan blade rotates to improve the reaction rate of ammonia gas and the spraying liquid, and the second fan blade accelerates the diffusion of ammonia gas, so that the contact area of ammonia gas and the spraying liquid is conveniently increased.

[0010] Preferably, the spraying mechanism comprises a liquid inlet pipe, a mixing box, two groups of annular pipes and a plurality of spray heads, the liquid inlet pipe is communicated with a spraying liquid storage tank, the mixing box is installed on the spray tower and communicated with the inside of the liquid inlet pipe, the two groups of annular pipes are both installed in the inner cavity of the spray tower and located on the upper and lower sides of the first fan blade respectively, and the plurality of spray heads are installed on the two groups of annular pipes respectively; the liquid inlet pipe delivers the spraying liquid to the two groups of annular pipes through the mixing box, the two groups of annular pipes deliver the spraying liquid to the plurality of spray heads, and the plurality of spray heads spray the spraying liquid, so that the spraying liquid can absorb ammonia gas.

[0011] Preferably, the reflux mechanism comprises a water pump, a water suction pipe, a water delivery pipe and a second check valve, the water pump is installed on the treatment box, the water suction pipe is installed on the water pump and communicated with the inside of the water tank, the water delivery pipe is installed on the water pump and communicated with the inside of the mixing box, and the second check valve is installed on the water delivery pipe; the water pump is started, the water pump draws out the filtered wastewater in the water tank through the water suction pipe, delivers the wastewater to the mixing box through the water delivery pipe to mix with the spraying liquid, reduces the use of fresh water, and avoids the reflux of the spraying liquid through the water delivery pipe by arranging the second check valve.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the aluminum ash hazardous waste library ammonia gas is delivered to the absorption mechanism, the spraying mechanism sprays the spraying liquid into the absorption mechanism to mix with the ammonia gas, the ammonia gas is absorbed, at the same time, the flow disturbing mechanism is started to accelerate the reaction of the ammonia gas and the spraying liquid, the ammonia gas absorption effect is enhanced, the reacted wastewater is delivered to the wastewater treatment mechanism, the staff delivers lime into the wastewater treatment mechanism, the lime reacts with the wastewater to purify the wastewater, after the wastewater is filtered, the reflux mechanism delivers the wastewater to the spraying mechanism to mix, and the waste of water resources is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the cross-section axonometric structure schematic diagram of the utility model;

[0014] Figure 2 is the local enlarged cross-section axonometric structure schematic diagram of the wastewater treatment mechanism of the utility model;

[0015] Figure 3It is the partial enlarged section isometric structure schematic view of the absorbing mechanism and the spraying mechanism of the utility model,

[0016] Figure 4 It is the partial enlarged section isometric structure schematic view of the disturbing mechanism of the utility model,

[0017] Figure 5 It is the partial enlarged section isometric structure schematic view of the backflow mechanism of the utility model.

[0018] In the drawing, mark: 01, wastewater treatment mechanism;11, processing box;12, filter plate;13, water tank;14, sealing cover;15, feed pipe;16, valve;02, absorbing mechanism;21, spraying tower;22, air inlet pipe;23, first check valve;24, uniform plate;25, filling layer;26, exhaust pipe;03, disturbing mechanism;31, motor;32, speed reducer;33, transmission shaft;34, first fan blade;35, second fan blade;04, spraying mechanism;41, liquid inlet pipe;42, mixing box;43, annular pipe;44, spray head;05, backflow mechanism;51, water pump;52, water suction pipe;53, water delivery pipe;54, second check valve. DETAILED DESCRIPTION

[0019] In order to facilitate understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings. The utility model can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0020] Example 1

[0021] The utility model discloses an ammonia gas absorption and purification device for aluminum ash hazardous waste warehouse, including wastewater treatment mechanism 01, still including absorption mechanism 02, turbulence mechanism 03, spraying mechanism 04 and reflux mechanism 05, absorption mechanism 02 installs on wastewater treatment mechanism 01 and disperses to ammonia gas, turbulence mechanism 03 installs on absorption mechanism 02 and accelerates ammonia gas and spraying liquid reaction, spraying mechanism 04 installs on absorption mechanism 02 and will spray liquid delivery to absorption mechanism 02, and reflux mechanism 05 installs on spraying mechanism 04 and will handle water backfeed to spraying mechanism 04, wastewater treatment mechanism 01 includes processing box 11, filter plate 12, water tank 13, sealing cover 14, feed pipe 15 and valve 16, and the bottom of processing box 11 is connected with ground, and the inside of processing box 11 is provided with cavity, and filter plate 12 installs on processing box 11, and water tank 13 installs on processing box 11 and is communicated with the inside of the cavity of processing box 11, and sealing cover 14 rotates and installs on processing box 11, and the bottom of feed pipe 15 is communicated with the inside of the top of processing box 11, and valve 16 installs on feed pipe 15, absorption mechanism 02 includes spraying tower 21, air inlet pipe 22, first check valve 23, even board 24, filling layer 25 and exhaust pipe 26, and the bottom of spraying tower 21 is communicated with the inside of the top of feed pipe 15, and the inside of spraying tower 21 is provided with inner chamber, and air inlet pipe 22 installs on spraying tower 21 and is communicated with the inside of spraying tower 21, and first check valve 23 installs on air inlet pipe 22, and even board 24 installs in the inner chamber of spraying tower 21, and filling layer 25 installs in the inner chamber of spraying tower 21, and the bottom of exhaust pipe 26 is communicated with the inside of the top of spraying tower 21, turbulence mechanism 03 includes motor 31, speed reducer 32, transmission shaft 33, first fan blade 34 and second fan blade 35, and the bottom of motor 31 is connected with the top of spraying tower 21, and the input of speed reducer 32 is connected with the output of motor 31, and the input of transmission shaft 33 is connected with the output of speed reducer 32, and first fan blade 34 installs on transmission shaft 33, and second fan blade 35 installs on transmission shaft 33 and is located below even board 24, spraying mechanism 04 includes liquid inlet pipe 41, mixing box 42, two sets of annular pipes 43 and multiple groups of sprayers 44, and liquid inlet pipe 41 is communicated with spraying liquid storage tank, and mixing box 42 installs on spraying tower 21 and is communicated with the inside of liquid inlet pipe 41, and two sets of annular pipes 43 all install in the inner chamber of spraying tower 21 and are respectively located on the upper and lower sides of first fan blade 34, and multiple groups of sprayers 44 are respectively installed on two sets of annular pipes 43.In its work, first, aluminum ash hazardous waste library ammonia gas is transported to the inner cavity of the spray tower 21 through the inlet pipe 22, the first check valve 23 is set to avoid ammonia gas backflow, the ammonia gas is dispersed through the uniform plate 24, the contact area of ammonia gas and spray liquid is increased, the motor 31 is started, the motor 31 drives the transmission shaft 33 to rotate through the speed reducer 32, the transmission shaft 33 drives the first fan blade 34 and the second fan blade 35 to rotate, the second fan blade 35 accelerates ammonia gas diffusion, which facilitates to increase the contact area of ammonia gas and spray liquid, the filler layer 25 preliminarily filters and absorbs ammonia gas, the liquid inlet pipe 41 transports the spray liquid into two groups of annular pipes 43 through the mixing box 42, the two groups of annular pipes 43 transport the spray liquid into multiple groups of spray heads 44, the multiple groups of spray heads 44 spray the spray liquid, which facilitates the spray liquid to absorb ammonia gas, the first fan blade 34 rotates to improve the reaction rate of ammonia gas and spray liquid, the purified air after absorption is discharged through the exhaust pipe 26, the worker opens the sealing cover 14, puts lime into the cavity of the treatment box 11, then opens the valve 16, the waste liquid in the absorption mechanism 02 is transported into the cavity of the treatment box 11 through the feed pipe 15, the lime neutralizes the acidity of the waste liquid, the waste liquid filters the generated floating matter through the filter plate 12, and the waste liquid enters the water tank 13.

[0022] Example 2

[0023] As Figures 1 to 5As shown, the ammonia gas absorption and purification device for aluminum ash dangerous waste library is based on embodiment 1; the reflux mechanism 05 includes a water pump 51, a water suction pipe 52, a water conveying pipe 53 and a second check valve 54, the water pump 51 is installed on the treatment box 11, the water suction pipe 52 is installed on the water pump 51 and communicates with the inside of the water tank 13, the water conveying pipe 53 is installed on the water pump 51 and communicates with the inside of the mixing box 42, and the second check valve 54 is installed on the water conveying pipe 53; when it works, first, the ammonia gas in the aluminum ash dangerous waste library is conveyed into the inner cavity of the spray tower 21 through the air inlet pipe 22, the first check valve 23 is arranged to avoid ammonia gas backflow, the ammonia gas is dispersed through the uniform plate 24, the contact area of the ammonia gas and the spraying liquid is increased, the motor 31 is started, the motor 31 drives the transmission shaft 33 to rotate through the speed reducer 32, the transmission shaft 33 drives the first fan blade 34 and the second fan blade 35 to rotate, the second fan blade 35 accelerates the diffusion of ammonia gas, the contact area of ammonia gas and spraying liquid is conveniently increased, the filling layer 25 preliminarily filters and absorbs ammonia gas, the liquid inlet pipe 41 conveys the spraying liquid into the two groups of annular pipes 43 through the mixing box 42, the two groups of annular pipes 43 convey the spraying liquid into the multiple groups of spray heads 44, the multiple groups of spray heads 44 spray the spraying liquid, the spraying liquid absorbs ammonia gas conveniently, the first fan blade 34 rotates to increase the reaction rate of ammonia gas and the spraying liquid, the air after absorption and purification is discharged through the air outlet pipe 26, the worker opens the sealing cover 14, the lime is conveyed into the cavity of the treatment box 11, then the valve 16 is opened, the waste liquid in the absorption mechanism 02 is conveyed into the cavity of the treatment box 11 through the feeding pipe 15, the lime neutralizes the acidity of the waste liquid, the waste liquid filters the generated floating matter through the filter plate 12, the waste liquid enters the water tank 13, the water pump 51 is started, the water pump 51 draws the filtered waste water in the water tank 13 out through the water suction pipe 52, conveys the waste water into the mixing box 42 through the water conveying pipe 53 and mixes with the spraying liquid, reduces the use of fresh water, and the second check valve 54 is arranged to avoid the backflow of the spraying liquid through the water conveying pipe 53.

[0024] The motor 31, the speed reducer 32 and the water pump 51 of the utility model are purchased on the market, and the technical personnel in the industry only needs to install and operate according to the attached instruction manual, without the creative labor of the technical personnel in the field.

[0025] The preferred embodiments of the utility model are described above, and it should be pointed out that, for ordinary technical personnel in the technical field, a number of improvements and modifications can be made without departing from the technical principles of the utility model, and these improvements and modifications should also be regarded as the protection range of the utility model.

Claims

1. An ammonia absorption and purification device for an aluminum ash hazardous waste storage facility, comprising a wastewater treatment unit (01); characterized in that, It also includes an absorption mechanism (02), a turbulence mechanism (03), a spraying mechanism (04), and a return mechanism (05). The absorption mechanism (02) is installed on the wastewater treatment mechanism (01) and disperses the ammonia gas. The turbulence mechanism (03) is installed on the absorption mechanism (02) and accelerates the reaction between the ammonia gas and the spray liquid. The spraying mechanism (04) is installed on the absorption mechanism (02) and transports the spray liquid into the absorption mechanism (02). The return mechanism (05) is installed on the spraying mechanism (04) and returns the treated water to the spraying mechanism (04).

2. The ammonia absorption and purification device for an aluminum ash hazardous waste storage facility as described in claim 1, characterized in that, The wastewater treatment unit (01) includes a treatment box (11), a filter plate (12), a water tank (13), a sealing cover (14), a feed pipe (15), and a valve (16). The bottom of the treatment box (11) is connected to the ground. The inside of the treatment box (11) is provided with a cavity. The filter plate (12) is installed on the treatment box (11). The water tank (13) is installed on the treatment box (11) and communicates with the inside of the cavity of the treatment box (11). The sealing cover (14) is rotatably installed on the treatment box (11). The bottom of the feed pipe (15) is connected to the inside of the top of the treatment box (11). The valve (16) is installed on the feed pipe (15).

3. The ammonia absorption and purification device for an aluminum ash hazardous waste storage facility as described in claim 2, characterized in that, The absorption mechanism (02) includes a spray tower (21), an air inlet pipe (22), a first check valve (23), a uniform plate (24), a filling layer (25), and an exhaust pipe (26). The bottom end of the spray tower (21) is connected to the top end of the feed pipe (15). The spray tower (21) has an inner cavity. The air inlet pipe (22) is installed on the spray tower (21) and is connected to the inside of the spray tower (21). The first check valve (23) is installed on the air inlet pipe (22). The uniform plate (24) is installed in the inner cavity of the spray tower (21). The filling layer (25) is installed in the inner cavity of the spray tower (21). The bottom end of the exhaust pipe (26) is connected to the top end of the spray tower (21).

4. The ammonia absorption and purification device for an aluminum ash hazardous waste storage facility as described in claim 3, characterized in that, The turbulence mechanism (03) includes a motor (31), a reducer (32), a drive shaft (33), a first fan blade (34), and a second fan blade (35). The bottom end of the motor (31) is connected to the top end of the spray tower (21). The input end of the reducer (32) is connected to the output end of the motor (31). The input end of the drive shaft (33) is connected to the output end of the reducer (32). The first fan blade (34) is mounted on the drive shaft (33), and the second fan blade (35) is mounted on the drive shaft (33) and located below the uniform plate (24).

5. The ammonia absorption and purification device for an aluminum ash hazardous waste storage facility as described in claim 3, characterized in that, The spraying mechanism (04) includes an inlet pipe (41), a mixing tank (42), two sets of annular pipes (43) and multiple sets of nozzles (44). The inlet pipe (41) is connected to the spray liquid storage tank. The mixing tank (42) is installed on the spraying tower (21) and is connected to the inside of the inlet pipe (41). The two sets of annular pipes (43) are installed in the inner cavity of the spraying tower (21) and are located on the upper and lower sides of the first fan blade (34) respectively. The multiple sets of nozzles (44) are installed on the two sets of annular pipes (43) respectively.

6. The ammonia absorption and purification device for an aluminum ash hazardous waste storage facility as described in claim 5, characterized in that, The reflux mechanism (05) includes a water pump (51), a water suction pipe (52), a water delivery pipe (53), and a second check valve (54). The water pump (51) is installed on the treatment tank (11), the water suction pipe (52) is installed on the water pump (51) and communicates with the inside of the water tank (13), the water delivery pipe (53) is installed on the water pump (51) and communicates with the inside of the mixing tank (42), and the second check valve (54) is installed on the water delivery pipe (53).

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