CN214598153U - Low-concentration acidic waste gas treatment equipment - Google Patents
Low-concentration acidic waste gas treatment equipment Download PDFInfo
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- CN214598153U CN214598153U CN202120497587.7U CN202120497587U CN214598153U CN 214598153 U CN214598153 U CN 214598153U CN 202120497587 U CN202120497587 U CN 202120497587U CN 214598153 U CN214598153 U CN 214598153U
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Abstract
The utility model discloses a low concentration acid exhaust-gas treatment equipment, include: a pretreatment layer and an adsorption mechanism; the outlet of the pretreatment layer is connected with the inlet of the adsorption mechanism; the dehumidifying filler is arranged in the pretreatment layer; and an acidic adsorption filler is arranged in the adsorption mechanism. The waste gas treatment device has the beneficial effects that the waste gas treatment part only comprises the pretreatment layer and the adsorption mechanism, and the dehumidification filler and the acidic adsorption material are respectively arranged in the pretreatment layer and the adsorption mechanism by arranging the pretreatment layer and the adsorption mechanism, so that the waste gas is effectively purified, and the waste gas treatment device has the characteristics of simple structure, low cost and high purification efficiency.
Description
Technical Field
The utility model relates to a waste gas treatment technical field, in particular to low concentration acid exhaust-gas treatment equipment.
Background
In some scientific research processes, different acids are used and are often mixtures of a plurality of acids, so that most of the discharged waste gas is also a mixture of a plurality of acid mists. Such waste gases are generally large in amount, low in pollutant concentration, high in humidity and highly corrosive, and if the waste gases are directly discharged, not only can acid mist and acid gas in air of a workplace diffuse, but also acid precipitation in the atmospheric environment can be caused, so that the physical health of surrounding residents is endangered.
However, the existing equipment for treating such waste gas has the factors of complicated structure and poor performance of adsorption medium, resulting in high cost and low purification efficiency, which makes the waste gas treatment difficult.
Therefore, how to optimize the structure of the low-concentration acidic waste gas treatment equipment becomes an important technical problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a low concentration acid exhaust-gas treatment equipment has simple structure and strong adsorption performance's characteristics.
In order to achieve the above object, the utility model provides a following technical scheme:
a low concentration acidic exhaust gas treatment device comprising: a pretreatment layer and an adsorption mechanism;
the outlet of the pretreatment layer is connected with the inlet of the adsorption mechanism;
the dehumidifying filler is arranged in the pretreatment layer;
and an acidic adsorption filler is arranged in the adsorption mechanism.
Further, the acidic adsorbent filler comprises: SDG adsorbent.
Furthermore, the adsorption mechanism is a first-stage adsorption layer and a second-stage adsorption layer which are sequentially connected.
Further, the first-stage adsorption layer is provided with: a first-stage adsorption layer filler filling port and a first-stage adsorption layer filler external discharge port; and/or the secondary adsorption layer is provided with: a second-stage adsorption layer filler filling port and a second-stage adsorption layer filler external discharge port.
Further, still include: and the pressure difference detection device is arranged between the upstream of the pretreatment layer and the downstream of the adsorption mechanism.
Further, still include: and the acid mist concentration tester is arranged at the downstream of the adsorption.
Further, still include: a housing;
the pretreatment layer with adsorption apparatus construct set up in the casing, the casing has been seted up: an air inlet and an air outlet;
the air inlet is connected with an inlet of the pretreatment layer, and the air outlet is connected with an outlet of the secondary adsorption layer.
Further, still include: a collecting header pipe;
the inlet of the collecting main pipe is respectively connected with a plurality of waste gas collecting devices, and the outlet of the collecting main pipe is connected with the inlet of the pretreatment layer.
Further, the dehumidifying filler includes: and the pall ring is made of PP material.
Further, the bottom of the pretreatment layer is provided with: a sewage draining outlet.
According to the technical scheme, the utility model provides a low concentration acid exhaust-gas treatment equipment, beneficial effect lies in, the exhaust-gas treatment part only comprises pretreatment layer and adsorption apparatus structure, through setting up pretreatment layer and adsorption apparatus structure, at pretreatment layer and adsorption apparatus structure built-in dehumidification filler and acid adsorption material respectively, wherein the PP material pall ring is selected to the dehumidification filler, the SDG adsorbent is selected to the acid adsorption material for waste gas obtains effectual purification, has simple structure, with low costs and the high characteristics of purification efficiency.
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 these drawings without creative efforts.
Fig. 1 is a structural diagram of a low-concentration acidic waste gas treatment device provided by an embodiment of the present invention;
fig. 2 is a process flow diagram of a low-concentration acidic waste gas treatment device provided by an embodiment of the present invention.
Wherein, 1-an air inlet; 2-an exhaust port; 3-pretreatment layer; 4-first-order adsorption layer; 5, an access door; 6-a secondary adsorption layer; 7-a sewage draining outlet; 8-a support leg; 41-first-stage adsorption layer filler filling port; 42-a first-stage adsorption layer filler outlet; 61-filling port of filler of the second-level adsorption layer; 62-the second-level adsorption layer is filled with the external discharge port.
Detailed Description
The utility model discloses a low concentration acid exhaust-gas treatment equipment, this equipment mainly comprises pretreatment layer and adsorption apparatus structure, through setting up the effectual above-mentioned problem of solution of pretreatment layer and adsorption apparatus structure.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment of the utility model provides a pair of low concentration acid exhaust-gas treatment equipment, include: a pretreatment layer 3 and an adsorption mechanism;
the outlet of the pretreatment layer 3 is connected with the inlet of the adsorption mechanism;
the pretreatment layer 3 is internally provided with dehumidifying fillers;
the adsorption mechanism is internally provided with an acidic adsorption filler.
It should be noted that the waste gas treatment part only comprises the pretreatment layer and the adsorption mechanism, the waste gas is dried by the dehumidifying filler arranged in the pretreatment layer 3, a small amount of particles existing in the waste gas are intercepted, the outlet of the pretreatment layer 3 is connected with the inlet of the adsorption mechanism, so the waste gas enters the adsorption mechanism after being dried, the adsorption mechanism is internally provided with the acid adsorption material, the waste gas is further deacidified, and the waste gas and the acid adsorption material generate chemical reaction.
According to the above technical scheme, the utility model provides a low concentration acid exhaust-gas treatment equipment only comprises pretreatment layer and adsorption apparatus to the exhaust-gas treatment part, and the equal effectual waste gas that makes of built-in material has obtained effectual purification, compares with prior art, has simple structure, with low costs and the high characteristics of purification efficiency.
In order to optimize the above technical solution, the acidic adsorption packing comprises: SDG adsorbent.
The SDG adsorbent is used as an acidic adsorbent, can treat various acidic pollutants simultaneously, is composed of hydroxides of alkaline earth metals, aluminosilicate and active carbon, and has a chemical reaction while being physically adsorbed, so that the high-efficiency and irreversible absorption reaction of acidic waste gas is realized; compared with the prior art, the adsorption material has the characteristics of high adsorption performance, high economy and more adsorption objects.
In the scheme, the adsorption mechanism is a first-stage adsorption layer 4 and a second-stage adsorption layer 6 which are sequentially connected.
It should be noted that, the adsorption mechanism is by first grade adsorbed layer 4 and second grade adsorbed layer 6, and both connect gradually for waste gas has twice filterable chance, and prefiltration and refilter compare with prior art, have the characteristics that purification efficiency is high.
In order to optimize the above technical solution, the primary adsorption layer 4 is provided with: a first-stage adsorption layer filler filling port 41 and a first-stage adsorption layer filler external discharge port 42; and/or the secondary adsorption layer 6 is provided with: a second-stage adsorption layer filler filling port 61 and a second-stage adsorption layer filler external discharge port 62.
It should be noted that the first-stage adsorption layer 4 is provided with a first-stage adsorption layer filler filling port 41 and a first-stage adsorption layer filler external discharge port 42, and the second-stage adsorption layer 6 is provided with a second-stage adsorption layer filler filling port 61 and a second-stage adsorption layer filler external discharge port 62, so that the external discharge port can be opened for direct discharging when the filler is replaced, the external discharge port is closed, and a new filler can be filled by opening the feed port; compared with the prior art, the device has the characteristics of simple operation and convenient replacement.
The embodiment of the utility model provides a pair of low concentration acid exhaust-gas treatment equipment still includes: and a differential pressure detecting device disposed between the upstream of the pretreatment layer 3 and the downstream of the adsorption mechanism.
It should be noted that, because the pressure difference detection device is arranged between the upstream of the pretreatment layer 3 and the downstream of the adsorption mechanism, the pressure difference value of the air inlet and the air outlet can be detected by the pressure difference detection device, an operator can select the cleaning time of the pretreatment layer through the pressure difference value, and the cleaning mode is to directly extract the dehumidifying fillers arranged in the pretreatment layer and clean the dehumidifying fillers by a high-pressure water gun; compared with the prior art, the device has the characteristics of simple structure, simple and convenient operation and accurate replacement time.
The embodiment of the utility model provides a pair of low concentration acid exhaust-gas treatment equipment still includes: and the acid mist concentration tester is arranged at the downstream of the adsorption mechanism.
It should be noted that the acid mist concentration tester is arranged at the downstream position of the adsorption mechanism and used for daily inspection, and can quickly and accurately detect the concentration of the acid mist gas, so that the calculation deviation of the filling material replacement time caused by the change of the working condition is avoided, and the filling material is replaced in time; compared with the prior art, the method has the characteristics of high accuracy and convenience in detection.
The embodiment of the utility model provides a pair of low concentration acid exhaust-gas treatment equipment still includes: a housing;
the air inlet 1 is connected with the inlet of the pretreatment layer 3, and the air outlet 2 is connected with the outlet of the secondary adsorption layer 6.
The arrangement of the shell effectively prevents the waste gas from overflowing everywhere, because the pretreatment layer 3 and the adsorption mechanism are arranged in the shell, and the shell is also provided with the air inlet 1 and the air outlet 2, the air inlet 1 is connected with the inlet of the pretreatment layer 3, and the air outlet 2 is connected with the outlet of the secondary adsorption layer 6, the waste gas can be collected in the shell through the air inlet 1, and then the waste gas is discharged through the air outlet after the treatment of the waste gas treatment part is finished; compared with the prior art, the device has the characteristics of simple structure, low cost and strong purification effect.
The embodiment of the utility model provides a pair of low concentration acid exhaust-gas treatment equipment still includes: a collecting header pipe;
the inlet of the collecting main pipe is respectively connected with a plurality of waste gas collecting devices, and the outlet of the collecting main pipe is connected with the inlet of the pretreatment layer 3.
The design of the collecting main pipe is used for enabling the collected waste gas to have stronger capacity, the inlet of the collecting main pipe is respectively connected with the plurality of waste gas collecting devices, the outlet of the collecting main pipe is connected with the inlet of the pretreatment layer, and the received waste gas of the plurality of waste gas collecting devices can be collected in the main pipe, purified by waste gas treatment equipment and finally discharged; compared with the prior art, the device has the characteristics of simple structure and high economical efficiency.
In this aspect, the desiccant filler includes: and the pall ring is made of PP material.
The pall ring made of PP material is used as the dehumidifying filler, so that the effect of removing water vapor in the waste gas is stronger, the purification effect of the subsequent adsorbing filler is prevented from being influenced by the high humidity of the waste gas, and the small amount of particles in the waste gas can be intercepted; compared with the prior art, the filter has the characteristics of strong dehumidification capability and good filtering effect.
In this scheme, the bottom of preliminary treatment layer 3 is equipped with: a sewage discharge outlet 7.
It should be noted that when the dehumidifying filler arranged in the pretreatment layer 3 dries the waste gas, corresponding water vapor is generated, and the water vapor can be discharged through the arrangement of the drain outlet 7; in addition, the pretreatment layer 3 can intercept particulate matters existing in the waste gas, and when the particulate matters block the pretreatment layer 3, the built-in filler can be extracted and washed by a high-pressure water gun and discharged through a sewage outlet 7; compared with the prior art, the sewage treatment device has the characteristics of simple structure and convenience in sewage discharge.
The present solution is further described below with reference to specific embodiments.
The utility model provides a low concentration acid exhaust-gas treatment equipment, equipment mainly comprise waste gas entry, preliminary treatment layer, one-level adsorbed layer, second grade adsorbed layer, exhaust outlet, electric cabinet, supporting access door, drain and landing leg etc..
The process flow comprises the following steps: a plurality of fume hoods produce waste gas and collect the back through the top gas vent and converge and collect the house steward respectively, collect back waste gas and send into acid exhaust-gas treatment equipment, and waste gas is at first through the preliminary treatment layer through equipment import divergent pipe, and the preliminary treatment layer adopts PP material pall ring to fill, gets rid of in the waste gas steam in order to avoid waste gas humidity to influence the purifying effect of follow-up adsorption packing greatly, intercepts a small amount of particulate matters that exist in the waste gas simultaneously. The pretreated waste gas is absorbed by the composite inorganic acidic waste gas in the waste gas through the primary absorption layer, and the filler adopts SDG (sodium dodecyl benzene sulfonate) absorbent, so that the high-efficiency purification of various acid gases can be realized at the same time. The waste gas purified by the first-level adsorption layer is adsorbed and purified again by the second-level adsorption layer and then is discharged into an exhaust pipeline through a waste gas outlet reducer, and the waste gas is sent into an exhaust funnel through a draught fan to be organized and discharged to reach the standard.
Set up on the adsorbed layer and pack the feed inlet, set up the outer mouth of arranging of packing down, open outer mouthful direct ejection of compact of arranging when changing the packing, close outer mouthful of arranging and open the feed inlet and can pack new packing, easy operation, convenient change.
The technical parameters are as follows: 1. the shell of the acidic waste gas treatment equipment is made of PP (polypropylene), the filtering air speed is 0.6-0.8m/s, and the reaction time is more than 3 s;
2. the pretreatment layer adopts a pore plate built-in PP pall ring structure, can be extracted, has the filling thickness of 300-;
3. the first-stage adsorption layer and the second-stage adsorption layer adopt a structure of an SDG adsorbent arranged in a pore plate, the adsorption efficiency of the SDG adsorbent is more than 95%, the adsorption capacity is 35% -45%, and the pressure drop of a bed layer is about 1.2 pa/mm; the filling thickness can be adjusted by calculation, firstly, the concentration of the discharged exhaust gas is continuously detected, the total amount of pollutants is calculated, the time for replacing the filler is set (the suggested time for replacing the filler is less than or equal to 1 year), and 10% of surplus is reserved to select the amount of the filler to determine the filling thickness;
4. set up the detection mouth on the aiutage, the configuration hand-held type acid mist concentration tester uses as daily patrolling and examining, can detect acid mist gas concentration fast, accurately to avoid the filler change time calculation deviation that the operating mode change leads to, in time carry out the filler change.
To sum up, can reach the utility model discloses a key point does: the structure design of the pretreatment layer, the selection of the adsorbent, the replacement mode of the adsorbent and simple operation basically do not need maintenance and management.
The utility model has the advantages that: the adsorption process is easy to saturate, the filler needs to be frequently replaced and replaced by other technologies, but the concentration of the waste gas pollutants is low, the long-time use can be realized through design calculation, the purification efficiency of the adsorption process is high, the operation is simple, the investment is low, and the operation cost is low. The adsorbent is an SDG adsorbent, can treat various acidic pollutants simultaneously, consists of hydroxides of alkaline earth metals, aluminosilicate and active carbon, and also has a chemical reaction during physical adsorption, so that high-efficiency and irreversible absorption reaction of acidic waste gas is realized; the humidity of the waste gas is high, the service life of the adsorbent is influenced, and the mode of filling PP pall ring fillers in the pretreatment layer is adopted for defogging, dehumidification and dust pretreatment, so that the service life and the purification effect of the adsorbent are ensured.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A low concentration acidic exhaust gas treatment device, comprising: a pretreatment layer (3) and an adsorption mechanism;
the outlet of the pretreatment layer (3) is connected with the inlet of the adsorption mechanism;
the pre-treatment layer (3) is internally provided with dehumidifying fillers;
and an acidic adsorption filler is arranged in the adsorption mechanism.
2. The low concentration acidic exhaust gas treatment device according to claim 1, wherein the acidic adsorbent packing comprises: SDG adsorbent.
3. The low-concentration acidic exhaust gas treatment equipment according to claim 1, wherein the adsorption mechanism is a primary adsorption layer (4) and a secondary adsorption layer (6) which are connected in sequence.
4. The low-concentration acidic exhaust gas treatment device according to claim 3, wherein the primary adsorption layer (4) is provided with: a first-stage adsorption layer filler filling port (41) and a first-stage adsorption layer filler external discharge port (42); and/or the secondary adsorption layer (6) is provided with: a second-stage adsorption layer filler filling port (61) and a second-stage adsorption layer filler external discharge port (62).
5. The low concentration acidic exhaust gas treatment device according to claim 1, further comprising: and a differential pressure detection device arranged between the upstream of the pretreatment layer (3) and the downstream of the adsorption mechanism.
6. The low concentration acidic exhaust gas treatment device according to claim 1, further comprising: and the acid mist concentration tester is arranged at the downstream of the adsorption mechanism.
7. The low concentration acidic exhaust gas treatment device according to claim 1, further comprising: a housing;
pretreatment layer (3) with adsorption apparatus constructs set up in the casing, the casing has been seted up: an air inlet (1) and an air outlet (2);
the air inlet (1) is connected with an inlet of the pretreatment layer (3), and the air outlet (2) is connected with an outlet of the secondary adsorption layer (6).
8. The low concentration acidic exhaust gas treatment device according to claim 1, further comprising: a collecting header pipe;
the inlet of the collecting main pipe is respectively connected with a plurality of waste gas collecting devices, and the outlet of the collecting main pipe is connected with the inlet of the pretreatment layer (3).
9. The low concentration acidic exhaust gas treatment device according to claim 1, wherein the dehumidifying packing comprises: and the pall ring is made of PP material.
10. The low-concentration acidic exhaust gas treatment equipment according to claim 1, wherein the bottom of the pretreatment layer (3) is provided with: a sewage draining outlet (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120497587.7U CN214598153U (en) | 2021-03-09 | 2021-03-09 | Low-concentration acidic waste gas treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120497587.7U CN214598153U (en) | 2021-03-09 | 2021-03-09 | Low-concentration acidic waste gas treatment equipment |
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| Publication Number | Publication Date |
|---|---|
| CN214598153U true CN214598153U (en) | 2021-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120497587.7U Active CN214598153U (en) | 2021-03-09 | 2021-03-09 | Low-concentration acidic waste gas treatment equipment |
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| CN (1) | CN214598153U (en) |
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2021
- 2021-03-09 CN CN202120497587.7U patent/CN214598153U/en active Active
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