CN211753805U - A high-efficient exhaust-gas treatment equipment for handling printing waste gas - Google Patents
A high-efficient exhaust-gas treatment equipment for handling printing waste gas Download PDFInfo
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- CN211753805U CN211753805U CN202020205795.0U CN202020205795U CN211753805U CN 211753805 U CN211753805 U CN 211753805U CN 202020205795 U CN202020205795 U CN 202020205795U CN 211753805 U CN211753805 U CN 211753805U
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Abstract
The utility model discloses a high-efficiency waste gas treatment device for treating printing waste gas, which relates to the technical field of waste gas treatment and solves the technical problems of poor waste gas treatment effect and low waste gas absorption rate of the existing waste gas treatment device, the utility model comprises a waste gas inlet pipeline, a mixed spray tower, an adsorption device and a waste gas outlet pipeline which are connected in sequence, the exhaust gas outlet pipeline is provided with an air pump A, the exhaust gas inlet pipeline is provided with a composite pretreatment device, the composite pretreatment equipment comprises a pretreatment tank body, an air inlet connecting pipe and an air outlet interface, wherein a filtering clapboard is arranged in the pretreatment tank body and divides the interior of the pretreatment tank body into an upper cavity and a lower cavity, a plurality of composite filtering and absorbing mechanisms are detachably arranged in the upper cavity, and the air inlet connecting pipe extends into the lower cavity and is connected with a waste gas dispersing mechanism; the utility model has the advantages of simple structure, high waste gas absorption rate and energy conservation and environmental protection.
Description
Technical Field
The utility model relates to an exhaust-gas treatment technical field, more specifically relate to a high-efficient exhaust-gas treatment equipment for handling printing waste gas for the exhaust-gas treatment of papermaking, printing trade.
Background
In the industries of paper making, printing and decoration, a large amount of waste gas is easy to generate, and the pollution to the external environment is caused. In the paper industry, the sulfate pulping is the dominant chemical pulping method at home and abroad, the production process of producing unbleached pulp by the sulfate method can generate the odor generated by pulping with different concentrations, the pulping odor contains main pollution gases such as hydrogen sulfide (H2S), methyl mercaptan (CH3SH), methyl sulfide (CH3SCH3), dimethyl disulfide (CH3SSCH3) and the like, and the gases are harmful to human and livestock, and can cause poisoning and have very bad taste after being excessively inhaled. These gases are also combustible gases, having combustion characteristics such as: ignition temperature, explosion limit, calorific value, etc. In the past, the pulping odor of a paper mill is directly discharged, the odor discharge amount is larger and larger along with the larger scale of the paper mill, and the environment protection requires that combustible gas and harmful gas are not allowed to be directly discharged to the air, so the pulping odor must be treated and then discharged after being collected.
The existing waste gas treatment system generally adopts a combustion treatment mode, but certain gases are difficult to be fully combusted, and still have great pollution, so that waste gas is increasingly absorbed by waste gas absorption liquid.
The conventional waste gas absorption method is to directly introduce a waste gas pipeline into the absorption liquid, but the mode often causes poor waste gas absorption effect. Wherein, the contact area of the waste gas and the liquid is small, and the absorption efficiency is limited; when the waste gas is introduced quickly, most of the gas is not absorbed in time and overflows in the form of bubbles, so that the environment is polluted.
How to solve the above technical problems is the direction of effort of those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: in order to solve the technical problem that the current exhaust-gas treatment equipment exhaust-gas treatment effect is poor, the waste gas absorption rate is low, the utility model provides a high-efficient exhaust-gas treatment equipment for handling printing waste gas.
The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:
the utility model provides a high-efficient exhaust-gas treatment equipment for handling printing waste gas, is provided with aspiration pump A including the waste gas inlet line, mixed spray column, adsorption equipment and the waste gas outlet pipe way that connect gradually, waste gas outlet pipe say and go up, waste gas inlet line on be provided with compound pre-treatment equipment, compound pre-treatment equipment include the pretreatment tank body, set up the inlet connection of taking over, setting at pretreatment tank body top and the interface of giving vent to anger of mixed spray column intercommunication of the inlet of pretreatment tank body lateral wall bottom, the internal portion of pretreatment tank be provided with filter baffle, filter baffle falls into cavity and cavity down to the internal portion of pretreatment tank, go up the internal dismantlement of cavity and be provided with a plurality of compound filtration absorption mechanisms, the inlet connection pipe extend into down the internal waste gas dispersion mechanism that is connected with of cavity.
Furthermore, the quantity of the composite filtering and absorbing mechanisms is 2, each composite filtering and absorbing mechanism comprises two U-shaped mounting seats which are symmetrically arranged on the inner wall of the upper cavity and are opposite in opening, and an active carbon filtering screen plate is inserted between the two U-shaped mounting seats.
Further, waste gas dispersion mechanism include along the round trunk line that cavity bottom set up down and many dispersion small transfer lines of equipartition in trunk line inside, trunk line and every dispersion small transfer line top all be provided with the back taper opening, the takeover that admits air extend into down in the cavity with the trunk line intercommunication.
Further, mixed spray column include spraying system, tower body, set up air inlet and the gas outlet at tower body below and top respectively, the tower body in from the bottom up have set gradually fretwork baffle, multilayer packing layer and defroster, the air inlet be located between fretwork baffle and the lower floor packing layer, fretwork baffle below be provided with the circulation tank who is connected with spraying system.
Further, the spraying system comprises a main circulating pipeline positioned outside the tower body, a spraying pipeline respectively positioned below the demister and each layer of packing layer, and a spray head positioned on the spraying pipeline, wherein each spraying pipeline extends out of the tower body to be communicated with the main circulating pipeline, a filter mantle is arranged in the circulating water tank, the bottom of the main circulating pipeline extends into the filter mantle in the circulating water tank, and a water pump is arranged on the main circulating pipeline.
Furthermore, at least one access hole is formed in the side wall of the tower body.
Further, adsorption equipment include the shell and set up the inlet end and the end of giving vent to anger in the shell both sides, the shell inside from the inlet end to the end slope of giving vent to anger and be provided with the multilayer active carbon filter layer, the inclination of active carbon filter layer is 15 ~ 45.
Further, adsorption equipment and aspiration pump A between still be provided with UV photodissociation equipment, waste gas inlet line still be provided with the air exhauster.
The utility model has the advantages as follows:
1. the utility model discloses simple structure, including traditional mixed spray column and adsorption equipment, the discharge of harmful gas has been reduced effectively, in addition, be provided with compound pre treatment facility on waste gas inlet line, be provided with a plurality of compound filtration absorption mechanism and waste gas dispersion mechanism in the compound pre treatment facility, waste gas dispersion mechanism's setting is waste gas sufficient equipartition in compound pre treatment facility, do benefit to the preliminary treatment absorption of compound filtration absorption mechanism, prevent that waste gas from not fully contacting with compound filtration absorption mechanism, improve the exhaust-gas treatment effect through mixed spray column and adsorption equipment, waste gas after reaching emission standard discharges into the atmosphere, residual steam, dust, foul smell in the waste gas produced in the paper mill production process have been purified effectively, thereby reached and administered atmospheric pollution, the mesh of protection ecological environment, effectively solved current waste gas treatment equipment exhaust-gas treatment effect difference simultaneously, The absorption rate of the waste gas is low.
2. Waste gas dispersion mechanism includes along round trunk line and the many dispersion branch pipes of equipartition in trunk line inside that cavity bottom set up down, trunk line and every dispersion branch pipe top all be provided with the back taper opening, the convenient processing and the installation of this kind of structure practice thrift the human cost, improve the absorption rate of harmful substance in the waste gas.
3. The tower body bottom of mixing the spray column is provided with circulation tank, is provided with the filter mantle in the circulation tank, and main circulating line bottom extends into the filter mantle in the circulation tank, and the impurity in the circulation tank can be filtered in the setting of this kind of structure, prevents to block up the shower nozzle when the circulating water passes through the trunk line entering branch pipe, causes the spraying effect not good, influences the treatment effect in the waste gas remixing spray column.
4. The inside slope of end to giving vent to anger from the inlet end of adsorption equipment's shell is provided with the multilayer active carbon filter layer, the inclination of active carbon filter layer is 15 ~ 45, and the active carbon filter layer that this kind of slope set up can increase the filtration absorption area of waste gas, increases the absorption effect, improves purification efficiency.
5. Still be provided with UV photodissociation equipment between adsorption equipment and the aspiration pump A, handle exhaust gas's stink, further effectively protect the environment.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the structure of the complex pretreatment apparatus;
FIG. 3 is a schematic structural view of an exhaust gas dispersing mechanism;
FIG. 4 is a schematic structural view of a hybrid spray tower;
FIG. 5 is a schematic view of the structure of the adsorption apparatus;
reference numerals: the method comprises the following steps of 1-exhaust fan, 2-waste gas inlet pipeline, 3-composite pretreatment equipment, 4-mixed spray tower, 5-adsorption equipment, 6-UV photolysis equipment and 7-air pump A and 8-waste gas outlet pipeline.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "up", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are conventionally placed when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
Example 1
As shown in fig. 1 to 5, the embodiment provides a high-efficiency waste gas treatment device for treating printing waste gas, which comprises a waste gas inlet pipe 2, a mixing spray tower 4, an adsorption device 5 and a waste gas outlet pipe 8 which are connected in sequence, wherein an air suction pump a7 is arranged on the waste gas outlet pipe 8, and is characterized in that a composite pretreatment device 3 is arranged on the waste gas inlet pipe 2, the composite pretreatment device 3 comprises a pretreatment tank 3-2, an air inlet connecting pipe 3-1 arranged at the bottom of the side wall of the pretreatment tank 3-2, and an air outlet interface 3-3 arranged at the top of the pretreatment tank 3-2 and communicated with the mixing spray tower 4, a filtering partition plate 3-5 is arranged inside the pretreatment tank 3-2, and the filtering partition plate 3-5 divides the interior of the pretreatment tank 3-2 into an upper cavity and a lower cavity, the upper cavity is internally detachably provided with a plurality of composite filtering and absorbing mechanisms 3-4, and the air inlet connecting pipe 3-1 extends into the lower cavity and is connected with a waste gas dispersing mechanism 3-6.
The number of the composite filtering and absorbing mechanisms 3-4 is 2, each composite filtering and absorbing mechanism 3-4 comprises two U-shaped mounting seats which are symmetrically arranged on the inner wall of the upper cavity and are provided with opposite openings, and an active carbon filtering screen plate is inserted between the two U-shaped mounting seats.
The waste gas dispersion mechanism 3-6 comprises a circle of main pipeline 3-6.1 arranged at the bottom of the lower cavity and a plurality of dispersion branch pipelines 3-6.2 uniformly distributed in the main pipeline 3-6.1, inverted cone-shaped openings 3-7 are arranged above the main pipeline 3-6.1 and each dispersion branch pipeline 3-6.2, and the air inlet pipe 3-1 extends into the lower cavity to be communicated with the main pipeline 3-6.1.
In this embodiment, be provided with compound pre treatment facility on waste gas inlet line, be provided with a plurality of compound filtration absorption mechanism and waste gas dispersion mechanism in the compound pre treatment facility, waste gas dispersion mechanism's setting is that waste gas fully distributes in compound pre treatment facility, do benefit to the preliminary treatment absorption of compound filtration absorption mechanism, prevent that waste gas from not fully contacting with compound filtration absorption mechanism, improve the exhaust-gas treatment effect through mixing spray column and adsorption equipment, the waste gas after reaching emission standard discharges into the atmosphere, the produced residual steam in the waste gas of paper mill production process has been purified effectively, the dust, the foul smell, thereby reached and administered atmospheric pollution, the mesh of protection ecological environment, the current waste-gas treatment equipment exhaust-gas treatment effect is poor simultaneously has effectively been solved, the technical problem that the waste gas absorption rate is low.
Waste gas dispersion mechanism includes along round trunk line and the many dispersion branch pipes of equipartition in trunk line inside that cavity bottom set up down, trunk line and every dispersion branch pipe top all be provided with the back taper opening, the convenient processing and the installation of this kind of structure practice thrift the human cost, improve the absorption rate of harmful substance in the waste gas.
Example 2
The embodiment is further optimized on the basis of embodiment 1, and specifically includes:
the mixed spray tower 4 comprises a spray system, a tower body 4-2, an air inlet 4-1 and an air outlet 4-4 which are respectively arranged below and at the top of the tower body 4-2, wherein a hollow partition plate 4-9, a multilayer packing layer 4-6 and a demister 4-5 are sequentially arranged in the tower body 4-2 from bottom to top, the air inlet 4-1 is positioned between the hollow partition plate 4-9 and the lowest packing layer 4-6, and a circulating water tank connected with the spray system is arranged below the hollow partition plate 4-9.
The spraying system comprises a main circulating pipeline 4-8 positioned outside the tower body 4-2, branch spraying pipelines 4-7 respectively positioned below the demister 4-5 and each layer of packing layer 4-6, and spray heads positioned on the branch spraying pipelines 4-7, wherein each branch spraying pipeline 4-7 extends out of the tower body 4-2 to be communicated with the main circulating pipeline 4-8, a filter cover 4-10 is arranged in the circulating water tank, the bottom of each main circulating pipeline 4-8 extends into the filter cover 4-10 in the circulating water tank, and a water pump 4-11 is arranged on each main circulating pipeline 4-8.
At least one access hole 4-3 is arranged on the side wall of the tower body 4-2.
In this example, the tower body bottom of mixing spray tower is provided with circulation tank, is provided with the filter mantle in the circulation tank, and main circulating line bottom extends into the filter mantle in the circulation tank, and the setting of this kind of structure can filter the impurity in the circulation tank, prevents to block up the shower nozzle when the circulating water passes through the trunk line and gets into the small transfer line, causes the spraying effect not good, influences the treatment effect in the waste gas remixing spray tower.
Example 3
The embodiment is further optimized on the basis of embodiment 1 or 2, and specifically comprises the following steps:
the adsorption equipment 5 comprises a shell 5-2, and an air inlet end 5-1 and an air outlet end 5-4 which are arranged on two sides of the shell, wherein a plurality of layers of activated carbon filter layers 5-3 are obliquely arranged in the shell 5-2 from the air inlet end 5-1 to the air outlet end 5-4, and the inclination angle of the activated carbon filter layers 5-3 is 15-45 degrees.
In this embodiment, the active carbon filter layer that this kind of slope set up can increase the filtration absorption area of waste gas, increases absorption effect, improves purification efficiency, still is provided with UV photodissociation equipment between adsorption equipment and the aspiration pump A, handles exhaust gas's stink, further effectively protects the environment.
Claims (8)
1. The high-efficiency waste gas treatment equipment for treating printing waste gas comprises a waste gas inlet pipeline (2), a mixed spray tower (4), adsorption equipment (5) and a waste gas outlet pipeline (8) which are sequentially connected, wherein an air suction pump A (7) is arranged on the waste gas outlet pipeline (8), and is characterized in that a composite pretreatment device (3) is arranged on the waste gas inlet pipeline (2), the composite pretreatment device (3) comprises a pretreatment tank body (3-2), an air inlet connecting pipe (3-1) arranged at the bottom of the side wall of the pretreatment tank body (3-2), and an air outlet interface (3-3) arranged at the top of the pretreatment tank body (3-2) and communicated with the mixed spray tower (4), a filtering partition plate (3-5) is arranged inside the pretreatment tank body (3-2), and the filtering partition plate (3-5) divides the interior of the pretreatment tank body (3-2) into an upper cavity and a lower cavity The composite filter comprises a cavity, wherein a plurality of composite filter absorption mechanisms (3-4) are detachably arranged in the upper cavity, and the air inlet connecting pipe (3-1) extends into the lower cavity and is connected with a waste gas dispersing mechanism (3-6).
2. The high-efficiency waste gas treatment equipment for treating printing waste gas as claimed in claim 1, wherein the number of the composite filtering and absorbing mechanisms (3-4) is 2, each composite filtering and absorbing mechanism (3-4) comprises two U-shaped mounting seats which are symmetrically arranged on the inner wall of the upper cavity and are provided with opposite openings, and an activated carbon filter screen plate is inserted between the two U-shaped mounting seats.
3. The efficient waste gas treatment equipment for treating printing waste gas as claimed in claim 1, wherein the waste gas dispersing mechanism (3-6) comprises a circle of main pipeline (3-6.1) arranged along the bottom of the lower cavity and a plurality of dispersing branch pipelines (3-6.2) uniformly distributed in the main pipeline (3-6.1), inverted cone-shaped openings (3-7) are arranged above the main pipeline (3-6.1) and each dispersing branch pipeline (3-6.2), and the air inlet connecting pipe (3-1) extends into the lower cavity to be communicated with the main pipeline (3-6.1).
4. The efficient waste gas treatment equipment for treating printing waste gas according to claim 1, wherein the mixed spray tower (4) comprises a spray system, a tower body (4-2), and a gas inlet (4-1) and a gas outlet (4-4) which are respectively arranged below and at the top of the tower body (4-2), the tower body (4-2) is internally provided with a hollow partition plate (4-9), a plurality of layers of packing layers (4-6) and a demister (4-5) from bottom to top in sequence, the gas inlet (4-1) is positioned between the hollow partition plate (4-9) and the lowest packing layer (4-6), and a circulating water tank connected with the spray system is arranged below the hollow partition plate (4-9).
5. A high efficiency exhaust gas treatment apparatus for treating printing exhaust gas according to claim 4, the spraying system comprises a main circulating pipeline (4-8) positioned outside the tower body (4-2), branch spraying pipelines (4-7) respectively positioned below the demister (4-5) and each layer of packing layer (4-6), and spray heads positioned on the branch spraying pipelines (4-7), wherein each branch spraying pipeline (4-7) extends out of the tower body (4-2) to be communicated with the main circulating pipeline (4-8), a filter cover (4-10) is arranged in the circulating water tank, the bottom of each main circulating pipeline (4-8) extends into the filter cover (4-10) in the circulating water tank, and a water pump (4-11) is arranged on each main circulating pipeline (4-8).
6. A high efficiency waste gas treatment device for treating printing waste gas according to claim 4 or 5, characterized in that the side wall of the tower body (4-2) is provided with at least one access hole (4-3).
7. The efficient waste gas treatment device for treating printing waste gas according to claim 1, wherein the adsorption device (5) comprises a shell (5-2) and an air inlet end (5-1) and an air outlet end (5-4) which are arranged on two sides of the shell, a plurality of activated carbon filter layers (5-3) are obliquely arranged in the shell (5-2) from the air inlet end (5-1) to the air outlet end (5-4), and the inclination angle of the activated carbon filter layers (5-3) is 15-45 degrees.
8. The efficient waste gas treatment equipment for treating printing waste gas according to claim 1, wherein a UV photolysis device (6) is further arranged between the adsorption device (5) and the air suction pump A (7), and the waste gas inlet pipeline (2) is further provided with an exhaust fan (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020205795.0U CN211753805U (en) | 2020-02-25 | 2020-02-25 | A high-efficient exhaust-gas treatment equipment for handling printing waste gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020205795.0U CN211753805U (en) | 2020-02-25 | 2020-02-25 | A high-efficient exhaust-gas treatment equipment for handling printing waste gas |
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| CN211753805U true CN211753805U (en) | 2020-10-27 |
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| CN202020205795.0U Active CN211753805U (en) | 2020-02-25 | 2020-02-25 | A high-efficient exhaust-gas treatment equipment for handling printing waste gas |
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