CN216321065U - Waste gas odour removal device and waste gas treatment system - Google Patents
Waste gas odour removal device and waste gas treatment system Download PDFInfo
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- CN216321065U CN216321065U CN202122605912.XU CN202122605912U CN216321065U CN 216321065 U CN216321065 U CN 216321065U CN 202122605912 U CN202122605912 U CN 202122605912U CN 216321065 U CN216321065 U CN 216321065U
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Abstract
The utility model discloses a waste gas odor removal device and a waste gas treatment system, wherein the waste gas odor removal device comprises a first washing tower, the first washing tower comprises a liquid storage tank, a tower body, a spraying device, a water pump and distribution filling units, a special odor removal agent is added into the liquid storage tank, the tower body is arranged above the liquid storage tank, an exhaust port is arranged at the upper end of the tower body, an air inlet and a liquid outlet are arranged at the lower end of the tower body, and the liquid outlet is communicated with the liquid storage tank; the spraying device is arranged in the tower body and is used for spraying liquid downwards; a liquid inlet of the water pump is communicated with the liquid storage tank, and a liquid outlet of the water pump is communicated with the spraying device; the distribution filling unit is arranged in the tower body and comprises a distributor and a filler, the distributor is positioned below the spraying device, and the filler is positioned below the distributor. According to the waste gas deodorizing device and the waste gas treatment system provided by the utility model, a better purification treatment effect can be achieved, the purified waste gas meets the national standard, and meanwhile, the device investment and the operation cost are low, so that the device and the system can be suitable for various waste gas purification occasions.
Description
Technical Field
The utility model relates to the technical field of harmful gas purification devices, in particular to a waste gas smell removal device and a waste gas treatment system.
Background
The majority of enterprises in the current production practice choose: the water curtain, the water spray tower and the photo-oxidation catalysis process have poor treatment effect, the odor and VOC exceed the standard, and ideal effect cannot be achieved. With the development of environmental protection policies and the increasing awareness of the public on environmental protection, it is necessary to find a more economical and reasonable solution. The waste gas treatment device in the related art has short gas retention time, uneven distribution of liquid and gas in the tower, insufficient reaction and poor waste gas purification effect.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the utility model aims to provide an exhaust gas smell removing device and an exhaust gas treatment system.
To achieve the above object, in a first aspect, an exhaust gas odor removal device according to an embodiment of the present invention includes:
the first washing tower comprises a liquid storage tank, a tower body, a spraying device, a water pump and distribution filling units, wherein a special deodorant is added into the liquid storage tank, the tower body is arranged above the liquid storage tank, an exhaust port is formed in the upper end of the tower body, an air inlet and a liquid outlet are formed in the lower end of the tower body, and the liquid outlet is communicated with the liquid storage tank;
the spraying device is arranged in the tower body and is used for spraying liquid containing the special deodorant downwards; a liquid inlet of the water pump is communicated with the liquid storage tank, and a liquid outlet of the water pump is communicated with the spraying device and used for conveying liquid in the liquid storage tank to the spraying device;
the distribution filling unit is arranged in the tower body and comprises a distributor and a filler, the distributor is positioned below the spraying device, and the filler is positioned below the distributor; wherein the deodorant also has a deodorizing composition.
According to one embodiment of the utility model, the distributed filling unit further comprises a redistributor provided below the filler.
According to one embodiment of the utility model, the redistributor includes a body, a snorkel tube disposed in the middle of the body, and a plurality of airway tubes disposed on the body around the snorkel tube.
According to one embodiment of the utility model, the distributed filling unit is a plurality of distributed filling units, and the plurality of distributed filling units are arranged in the tower body at intervals along the vertical direction.
According to one embodiment of the utility model, a demister is arranged in the tower body and is positioned above the spray device.
According to one embodiment of the utility model, an air inlet pipe is arranged on the side part of the lower end of the tower body, and the air inlet pipe is provided with the air inlet and a sampling port for collecting waste gas;
the tower body is provided with a sight glass which is positioned above the sampling port.
According to one embodiment of the utility model, the filler is a wire mesh filler, the height of the wire mesh filler is 3 to 6 meters, and the height of the demister is not less than 300 mm.
According to one embodiment of the utility model, the time that the waste gas introduced from the gas inlet passes through the tower body and is discharged from the gas outlet is not less than 3 seconds.
In a second aspect, an exhaust treatment system according to an embodiment of the present invention includes:
the alkaline washing device comprises a second washing tower and an alkaline washing reagent, the alkaline washing reagent is added into the liquid storage tank of the second washing tower, and the second washing tower and the first washing tower have the same structure;
the exhaust gas smell removing device is characterized in that an air inlet of the exhaust gas smell removing device is communicated with an air outlet on the alkaline washing device.
According to an embodiment of the present invention, further comprising:
the first washing device comprises a third washing tower and a first washing reagent, the first washing reagent is added into the liquid storage tank of the third washing tower, and the third washing tower and the first washing tower have the same structure;
and the air inlet of the third washing tower is communicated with the air outlet on the alkaline washing device, and the air outlet of the third washing tower is communicated with the air inlet on the waste gas deodorizing device.
According to an embodiment of the present invention, further comprising:
the pickling device comprises a fourth washing tower and a pickling reagent, the pickling reagent is added into the liquid storage tank of the fourth washing tower, and the fourth washing tower and the first washing tower are identical in structure; and the exhaust port of the fourth washing tower is communicated with the air inlet on the alkaline washing device.
According to an embodiment of the present invention, further comprising:
the second washing device comprises a fifth washing tower and a second washing reagent, the second washing reagent is added into the liquid storage tank of the fifth washing tower, and the fifth washing tower and the first washing tower have the same structure;
and the air inlet of the fifth washing tower is communicated with the air outlet on the acid washing device, and the air outlet of the fifth washing tower is communicated with the air inlet on the alkali washing device.
According to the waste gas smell removing device and the waste gas treatment system provided by the embodiment of the utility model, the filler units, namely the distributor, the filler, the redistributor and the like are arranged in the tower body, so that the phenomenon that gas or liquid directly flows through the tower wall due to uneven distribution of liquid or gas can be avoided, meanwhile, the time for the waste gas to pass can be adjusted through the distributor, the filler and the redistributor, so that the liquid or gas can be uniformly distributed in the tower, the contact area of the liquid or gas is large enough, the problems that the gas is not enough in treatment due to insufficient staying time and the like are solved, and in addition, a special deodorant is combined, so that the better purification treatment effect on industrial waste gas can be realized. In addition, the cooperation of utilizing alkali wash device, waste gas odour removal device etc. can carry out multi-level purification to waste gas, makes the waste gas after the purification accord with national standard, simultaneously, and is few, the operating cost is few to equipment input, can be suitable for various waste gas purification occasions.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of a scrub column according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the construction of a redistributor in a scrub column according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of an embodiment of an exhaust treatment system of the present invention;
FIG. 4 is a schematic structural view of another embodiment of an exhaust treatment system of the present invention;
FIG. 5 is a schematic structural view of yet another embodiment of an exhaust treatment system of the present invention.
Reference numerals:
10. a washing tower;
101. a liquid storage tank;
102. a tower body;
1021. an exhaust port;
1022. a liquid discharge port;
103. a spraying device;
104. a water pump;
105. distributing the filling units;
1051. a distributor;
1052. a filler;
1053. a redistributor;
1053a, a body,
1053b, a vent pipe;
1053c, gas-guide tube;
106. a demister;
107. an air inlet pipe;
1071. an air inlet;
1072. a sampling port;
108a, a first connecting pipe;
108b, a second connecting pipe;
109. a sight glass;
20. an alkaline washing device;
30. a first water washing device;
40. a pickling device;
50. and a second water washing device.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the present invention and should not be construed as limiting the present invention, and all other embodiments that can be obtained by one skilled in the art based on the embodiments of the present invention without inventive efforts shall fall within the scope of protection of the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "circumferential," "radial," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
An exhaust gas odor removing device and an exhaust gas treatment system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1 to 2, an exhaust gas odor removing device according to an embodiment of the present invention includes a first scrubber 10 and a special odor removing agent, where the first scrubber 10 includes a liquid storage tank 101, the liquid storage tank 101 is used for storing a liquid for purifying exhaust gas, the liquid is added with the special odor removing agent, preferably, the amount of the added odor removing agent in the liquid storage tank 101 is 3% to 10%, and the rest is water. The water storage tank can be a movable container, and can also be a fixed water reservoir and the like.
The tower body 102 is arranged above the liquid storage tank 101, an air outlet 1021 is arranged at the upper end of the tower body 102, an air inlet 1071 and a liquid outlet 1022 are arranged at the lower end of the tower body 102, and the liquid outlet 1022 is communicated with the liquid storage tank 101. The tower 102 may be directly fixed to the reservoir 101 or may be erected above the reservoir by a support structure. The inlet 1071 at the lower end of the tower 102 may be connected to a source of exhaust gas or to a pre-treatment device for exhaust gas, and the exhaust gas may enter the tower 102 through the inlet 1071, flow from below and up, and exit through the outlet 1021 at the upper end of the tower 102.
Spray set 103 is established in said tower body 102 for spray liquid downwards, preferably, this spray set 103 establishes the upper portion in tower body 102, and this spray set 103 can be a plate-like piece, is equipped with a plurality of orifice on plate-like piece, utilizes the orifice to spray liquid downwards, utilizes liquid and waste gas contact, and then carries out the humidifying to the particulate matter in the waste gas and deposits, simultaneously, removes treatments such as flavor purification to the harmful gas in the waste gas. It is understood that the spraying device 103 may have other structures, such as a plurality of spray heads, as long as it can spray the liquid from the top to the bottom. More advantageously, the liquid sprayed by the spraying device 103 is atomized and can fill the whole tower body 102, the liquid is more fully contacted with the waste gas, the purification treatment effect is better, and therefore, the spraying device 103 can also adopt a structure capable of atomizing the liquid.
A liquid inlet of the water pump 104 is communicated with the liquid storage tank 101, and a liquid outlet of the water pump 104 is communicated with the spraying device 103, so as to convey the liquid in the liquid storage tank 101 to the spraying device 103. Exemplarily, a liquid inlet of the water pump 104 is communicated with the liquid storage tank 101 through a first connecting pipe 108a, and a liquid outlet of the water pump 104 is communicated with the spraying device 103 through a second connecting pipe 108b, so that when the water pump 104 is started, the liquid in the liquid storage tank 101 can be sucked and then conveyed to the spraying device 103, and then is sprayed downwards into the tower body 102 through the spraying device 103.
The distributed packing unit 105 is disposed in the tower body 102, the distributed packing unit 105 includes a distributor 1051 and a packing 1052, the distributor 1051 is located below the spray device 103, the packing 1052 is located below the distributor 1051, and the time that the exhaust gas introduced from the gas inlet 1071 passes through the tower body 102 and is discharged from the gas outlet is not less than 3 seconds.
That is, the distribution packing unit 105 is disposed in the tower 102, and can uniformly distribute and filter the exhaust gas and the liquid, and can also extend the time for the exhaust gas to pass through. Specifically, during the process of flowing the exhaust gas from bottom to top, the exhaust gas passes through the packing 1052 and the distributor 1051, the packing 1052 has dense holes or channels therein, and the distributor 1051 also has a plurality of holes, so that the velocity of the exhaust gas is reduced and the exhaust gas is dispersed to the holes or channels when passing through the packing 1052 and the distributor 1051. Correspondingly, the in-process that spray set 103 spout down liquid flows downwards is dispersed to each hole and passageway by filler 1052 and distributor 1051, and then fully contact with waste gas, the realization is to the purification treatment of waste gas, in addition, liquid can also be with the particulate matter humidification in the waste gas and filler 1052 and the last filterable particulate matter humidification of distributor 1051, make the particulate matter can subside, and along with liquid together flows into to the liquid reserve tank 101 downwards, so, liquid in the liquid reserve tank 101 can be at circulation flow between liquid reserve tank 101 and tower body 102, carry out lasting waste gas purification treatment.
In addition, it should be noted that, through the tests of the inventor, the residence time of the exhaust gas in the tower body 102 is not less than 3 seconds, that is, the residence time of the exhaust gas introduced through the gas inlet 1071 after passing through the tower body 102 and being discharged from the gas outlet is not less than 3 seconds, and preferably, the residence time of the exhaust gas in the tower body 102 is 3 seconds to 10 seconds, so that the exhaust gas can be ensured to be fully contacted with the liquid, and the expected better purification treatment effect can be achieved.
In order to obtain better waste gas treatment effect, the gas-liquid ratio of the introduced waste gas to the sprayed liquid is 1:20-50 (ten thousand cubic meters of gas/cubic meter of liquid), namely, the gas quantity is 10000m3/h, and the air quantity is 20-50 m3/h, so that the gas can be fully contacted with the liquid, and the waste gas purification treatment effect is better.
The first washing tower 10 of the above embodiment can be used for deodorizing exhaust gas, a special deodorant is added into the liquid storage tank 101 of the first washing tower 10, the deodorant is conveyed to the spraying device 103 through the water pump 104, liquid is sprayed into the tower body 102 through the spraying device 103, and the exhaust gas in the tower body 102 is purified through the deodorant.
It can be understood that the exhaust gas with higher concentration can be treated by a multi-stage exhaust gas smell removal device in series, and the treated exhaust gas can reach the emission standard.
Further, herein, the deodorant for exclusive use contains a deodorizing composition comprising an amino acid complex of zinc and/or copper salt of (9Z,12R) -12-hydroxy-9-octadecenoic acid, paraformaldehyde and/or 3-methoxy-4-hydroxybenzaldehyde, a stabilizer, a penetrating agent, an antibacterial agent and an antistatic agent; wherein the weight ratio of the amino acid complex of the zinc salt and/or the copper salt of (9Z,12R) -12-hydroxy-9-octadecenoic acid, paraformaldehyde and/or 3-methoxy-4-hydroxybenzaldehyde, stabilizer, penetrant, antibacterial agent and antistatic agent is 1: 0.1-4.0: 0.05-0.5: 0.05-0.5: 0.001-0.2: 0.001-0.2.
By adopting the special deodorant, industrial waste gases such as hydrogen sulfide, ammonia, mercaptan, thioether, formaldehyde, carbon monoxide, trimethylamine, dimethyl sulfoxide, benzene, toluene, xylene, phenol, ethyl acetate, acrylic acid, styrene, methyl propyl ester, ethyl propyl ester, dimethyl carbonate and the like can be treated, and by combining the use of the first washing tower in the embodiment, a good treatment effect can be achieved after the industrial waste gases are treated, and the treated waste gases meet the emission standard.
According to the waste gas odor removing device provided by the embodiment of the utility model, the filler 1052 units, namely the distributor 1051, the filler 1052 and the redistributor 1053 and the like, are arranged in the tower body 102, so that the phenomenon that gas or liquid directly flows through the tower wall due to uneven distribution of liquid or gas can be avoided, meanwhile, the time for waste gas to pass can be adjusted through the distributor 1051 and the filler 1052, so that the liquid or gas can be uniformly distributed in the tower, the contact area of the liquid or gas is large enough, the problems that the gas is not enough in staying time and cannot be treated sufficiently and the like are solved, and in addition, a special odor removing agent is combined, so that a better purification treatment effect on industrial waste gas can be realized.
In one embodiment of the present invention, the distributed filling unit 105 further comprises a redistributor 1053, wherein the redistributor 1053 is arranged below the filler 1052.
That is to say, set up redistributor 1053 in the below of packing 1052, utilize redistributor 1053 to carry out secondary evenly distributed to waste gas and liquid, and then make gas and liquid through packing 1052 or can be by evenly dispersed, ensure the abundant contact of gas and liquid, reach better purification treatment effect.
Illustratively, the redistributor 1053 includes a body 1053a, a vent pipe 1053b arranged in the middle of the body 1053a, and a plurality of air ducts 1053c arranged on the body 1053a and surrounding the vent pipe 1053b, when the exhaust gas passes through the vent pipe 1053b and the air ducts 1053c, the exhaust gas is uniformly distributed through the vent pipe 1053b and the air ducts 1053c, and can stay for a certain time, so as to adjust the time for the exhaust gas to pass through, so that the liquid or gas is uniformly distributed in the tower, the contact area is large, and the problems of insufficient treatment and the like caused by insufficient stay time of the gas are avoided.
In some embodiments of the present invention, the distributed filling unit 105 is a plurality of distributed filling units 105, and a plurality of distributed filling units 105 are arranged in the tower body 102 at intervals in the vertical direction.
That is, the number of the distributed packing units 105 provided in the tower body 102 may be plural, and the plural distributed packing units 105 are arranged at intervals in the vertical direction, and specifically, the number of the distributed packing units 105 may be set according to the residence time of the exhaust gas in the tower body 102, and when the number of the distributed packing units 105 is large, the distribution is more uniform for the longer the residence time of the exhaust gas in the tower body 102.
In an embodiment of the present invention, a demister 106 is disposed in the tower body 102, and the demister 106 is located above the spray device 103.
Because spray set 103 sprays liquid downwards, and spray set 103 installs the distribution below and fills unit 105, the liquid that sprays to on the distribution fill unit 105 can produce the foam, through set up demister 106 above spray set 103, utilizes demister 106 to filter the foam that sprays the in-process and produce, so, can reduce the foam in the tower body 102, improves purifying effect.
In an embodiment of the present invention, an air inlet pipe 107 is disposed at a side portion of a lower end of the tower body 102, and the air inlet pipe 107 is provided with the air inlet 1071 and a sampling port 1072 for collecting exhaust gas; a viewing mirror 109 is arranged on the tower body 102, and the viewing mirror 109 is positioned above the sampling port 1072.
That is, the exhaust gas may enter the tower body 102 through the inlet port 1071 of the inlet pipe 107, and the exhaust gas is purified through the tower body 102. During a particular exhaust gas treatment process, an operator can observe the cleaning inside the tower 102 through the sight glass 109. In addition, can also sample the waste gas in the tower body 102 through sample connection 1072 to utilize check out test set to detect the waste gas of taking out, know the purification condition in the tower body 102 according to the testing result, if the result that detects is qualified, can be through the exhaust port 1021 of tower body 102 with the waste gas discharge in the tower body 102.
Advantageously, the packing 1052 is a wire mesh packing 1052, the height of the wire mesh packing 1052 is 3 to 6 meters, and the height of the demister 106 is not less than 300 millimeters, so that the residence time of the exhaust gas in the tower body 102 can be relatively reasonable, the purification treatment effect is good, and the efficiency is high.
The following describes a specific process of the exhaust gas odor removing device provided by the embodiment of the present invention:
first, the air inlet 1071 of the air inlet pipe 107 is connected to an exhaust gas source or a pre-treatment device, the exhaust gas or the exhaust gas treated by the pre-treatment device enters the interior of the tower body 102 through the air inlet 1071 of the air inlet pipe 107, and the exhaust gas flows upwards through the units of the distribution packing 1052 (the redistributor 1053, the wire mesh packing 1052, the distributor) after entering the interior of the exhaust gas tower body 102. The water pump 104 conveys the liquid in the liquid storage tank 101 to the spraying device 103, and sprays the liquid into the tower body 102 through the spraying device 103, so that the sprayed liquid is mixed with the waste gas, and is filtered through the demister 106, finally, the waste gas condition in the tower body 102 is observed through the sight glass 109, and the waste gas in the tower body 102 is sampled and detected through the sampling port 1072, when the detection is unqualified, the waste gas can be treated through the series multi-stage washing tower 10, after the waste gas is purified through the series multi-stage washing tower 10, the waste gas is sampled through the sampling port 1072 and is detected, and when the detection is qualified, the waste gas is discharged through the exhaust port 1021 of the tower body 102.
According to the waste gas deodorizing device provided by the embodiment of the utility model, liquid or gas can be uniformly distributed in the tower, the contact area is large enough, insufficient treatment caused by insufficient staying time of the gas is avoided, waste gas can be purified, the purified waste gas meets the national standard, and meanwhile, the device investment and the operation cost are low, so that the device is suitable for various waste gas purification occasions.
Referring to fig. 3, there is provided an exhaust gas treatment system according to an embodiment of the present invention, including an alkaline cleaning device 20 and an exhaust gas odor removal device as described in the above embodiment, wherein the alkaline cleaning device 20 includes a second scrubber tower and an alkaline cleaning agent, the alkaline cleaning agent is added to the liquid storage tank 101 of the second scrubber tower, the alkaline cleaning agent is generally alkaline solution, and the second scrubber tower is the same as the first scrubber tower 10 as described in the above embodiment; the air inlet 1071 of the exhaust gas deodorizing device is communicated with the air outlet 1021 of the alkaline washing device 20.
That is to say, in the exhaust gas treatment system of the present embodiment, the alkaline cleaning device 20 is added before the exhaust gas odor removal device of the above embodiment, the air inlet 1071 of the alkaline cleaning device 20 is connected to the exhaust gas source, and the exhaust gas discharged from the exhaust gas source can be absorbed and treated by the alkaline cleaning device 20, so that the acidic gas in the exhaust gas can be treated. The treated exhaust gas is then introduced into the first scrubber 10 of the exhaust gas odor removal device, and odor removal and purification treatment and the like are performed on the exhaust gas by using the odor removal agent in the first scrubber 10.
Referring to fig. 4, in an embodiment of the present invention, the present invention further includes a first washing apparatus 30, wherein the first washing apparatus 30 includes a third washing tower and a first washing reagent, the first washing reagent is added to the liquid storage tank 101 of the third washing tower, and the third washing tower has the same structure as the first washing tower 10 of the above embodiment. The air inlet 1071 of the third scrubber is communicated with the air outlet 1021 of the alkaline washing device 20, and the air outlet 1021 of the third scrubber is communicated with the air inlet 1071 of the waste gas deodorizing device.
That is to say, connect first washing device 30 between alkali wash device 20 and the exhaust gas odour removal device, waste gas absorbs through alkali wash device 20 after handling, rethread first washing device 30 carries out the washing filtration, get rid of the particulate matter etc. in the waste gas, the waste gas after the washing filtration lets in again to exhaust gas odour removal device, remove odor purification treatment through the deodorant, form the waste gas that accords with emission standard, and thus, through first washing device 30 washing filtration processing, make particulate matter impurity in the waste gas reduce, and the effect of exhaust gas purification is improved.
Referring to fig. 5, in an embodiment of the present invention, the present invention further includes a pickling apparatus 40, wherein the pickling apparatus 40 includes a fourth scrubber and a pickling reagent, the pickling reagent is added to the liquid storage tank 101 of the fourth scrubber, and the fourth scrubber has the same structure as the first scrubber 10 according to the above embodiment; the exhaust port 1021 of the fourth scrubber is communicated with the air inlet 1071 on the alkaline washing device 20.
That is, the acid cleaning device 40 is additionally arranged before the alkaline cleaning device 20, the gas inlet 1071 of the acid cleaning device 40 is connected to the exhaust gas source, and the exhaust gas discharged from the exhaust gas source can be absorbed by the acid cleaning device 40, so that the alkaline gas in the exhaust gas can be treated. The waste gas after handling lets in again and absorbs the processing in alkaline cleaning device 20, gets rid of the acid gas in the waste gas, lets in to carry out the washing processing in first washing device 30 next, and finally, the rethread is to the first scrubbing tower 10 of waste gas odour removal device, utilizes the smell removing agent in first scrubbing tower 10 to remove flavor purification treatment etc. to waste gas, so, pickling, alkaline cleaning and washing processing for waste gas purifying effect is better.
Referring to fig. 5, in an embodiment of the present invention, the second washing apparatus 50 further includes a fifth washing tower and a second washing reagent, the second washing reagent is added to the liquid storage tank 101 of the fifth washing tower, and the fifth washing tower has the same structure as the first washing tower 10 of the above embodiment. The air inlet 1071 of the fifth scrubber is communicated with the air outlet 1021 of the acid washing device 40, and the air outlet 1021 of the fifth scrubber is communicated with the air inlet 1071 of the alkaline washing device 20.
That is to say, connect second water scrubber 50 between acid dip pickle 40 and alkaline cleaning device 20, after the exhaust gas carries out absorption treatment through acid dip pickle 40, earlier carry out the washing through second water scrubber 50 and filter once, get rid of the granule impurity etc. in the exhaust gas, wash the exhaust gas after filtering and let in again to alkaline cleaning device 20 and carry out the alkali cleaning, so, further reduce the particulate matter impurity in the exhaust gas, improve exhaust gas purification effect.
The acid washing agent may be hydrochloric acid, sulfuric acid, or the like, the alkali washing agent may be sodium hydroxide, or the like, and the first water washing agent and the second water washing agent may be water, or the like. The deodorant may be one known in the art or one specifically used in the above examples.
According to the waste gas treatment system provided by the embodiment of the utility model, the waste gas can be purified in multiple levels by utilizing the matching of the alkaline washing device 20, the waste gas odor removal device and the like, so that the purified waste gas meets the national standard, and meanwhile, the investment on equipment and the operation cost are low, so that the waste gas treatment system can be suitable for various waste gas purification occasions.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (12)
1. An exhaust gas odor removing device, comprising:
the first washing tower comprises a liquid storage tank, a tower body, a spraying device, a water pump and distribution filling units, wherein a special deodorant is added into the liquid storage tank, the tower body is arranged above the liquid storage tank, an exhaust port is formed in the upper end of the tower body, an air inlet and a liquid outlet are formed in the lower end of the tower body, and the liquid outlet is communicated with the liquid storage tank;
the spraying device is arranged in the tower body and is used for spraying liquid containing the special deodorant downwards; a liquid inlet of the water pump is communicated with the liquid storage tank, and a liquid outlet of the water pump is communicated with the spraying device and used for conveying liquid in the liquid storage tank to the spraying device;
the distribution filling unit is arranged in the tower body and comprises a distributor and a filler, the distributor is positioned below the spraying device, the filler is positioned below the distributor, and the deodorant contains a deodorant composition.
2. The exhaust gas odor elimination device of claim 1, wherein said distributed filler unit further comprises a redistributor disposed below said filler.
3. The exhaust gas odor elimination device of claim 2, wherein the redistributor includes a body, a snorkel tube disposed in the middle of the body, and a plurality of air ducts disposed on the body around the snorkel tube.
4. The exhaust gas odor removing device according to claim 1, 2 or 3, wherein said distributed filler unit is plural, and plural distributed filler units are arranged at intervals in the up-down direction in said tower body.
5. The exhaust gas odor removal device according to claim 1, wherein a demister is provided in said tower body, said demister being located above said spray means.
6. The waste gas deodorizing device according to claim 1, wherein an air inlet pipe is provided at a side portion of a lower end of the tower body, and the air inlet pipe is provided with the air inlet and a sampling port for collecting waste gas;
the tower body is provided with a sight glass which is positioned above the sampling port.
7. The exhaust gas odor removal apparatus according to claim 5, wherein said packing is a wire mesh packing having a height of 3 to 6 m, and said demister has a height of not less than 300 mm.
8. The exhaust gas odor removing apparatus as claimed in claim 1, wherein the time taken for the exhaust gas introduced through said inlet port to pass through said tower body and then to be discharged from said outlet port is not less than 3 seconds.
9. An exhaust treatment system, comprising:
an alkaline washing device comprising a second scrubber and an alkaline washing agent added to a liquid tank of the second scrubber, the second scrubber being identical in structure to the first scrubber according to any one of claims 1 to 8;
an exhaust gas odour removal device as claimed in any one of claims 1 to 8, the inlet of which communicates with an outlet on the caustic wash device.
10. The exhaust treatment system of claim 9, further comprising:
a first water washing apparatus comprising a third washing tower and a first water washing reagent, the first water washing reagent being added to the liquid storage tank of the third washing tower, the third washing tower being identical in structure to the first washing tower of any one of claims 1 to 8;
and the air inlet of the third washing tower is communicated with the air outlet on the alkaline washing device, and the air outlet of the third washing tower is communicated with the air inlet on the waste gas deodorizing device.
11. The exhaust treatment system of claim 9, further comprising:
a pickling device comprising a fourth scrubber tower and a pickling reagent added to the tank of the fourth scrubber tower, the fourth scrubber tower being identical in structure to the first scrubber tower of any one of claims 1 to 8; and the exhaust port of the fourth washing tower is communicated with the air inlet on the alkaline washing device.
12. The exhaust treatment system of claim 11, further comprising:
a second water washing apparatus comprising a fifth washing tower and a second water washing reagent, the second water washing reagent being added to the liquid storage tank of the fifth washing tower, the fifth washing tower having the same structure as the first washing tower of any one of claims 1 to 8;
and the air inlet of the fifth washing tower is communicated with the air outlet on the acid washing device, and the air outlet of the fifth washing tower is communicated with the air inlet on the alkali washing device.
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| CN113797736A (en) * | 2021-10-27 | 2021-12-17 | 深圳市爱康泉水处理服务有限公司 | Waste gas odour removal device and waste gas treatment system |
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| CN113797736A (en) * | 2021-10-27 | 2021-12-17 | 深圳市爱康泉水处理服务有限公司 | Waste gas odour removal device and waste gas treatment system |
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