Waste gas filtering device

Abstract

The waste gas filtering device comprises a washing tank, a spraying tank and an activated carbon tank, the washing tank is used for storing washing liquid, the washing tank is connected with a gas inlet pipe, the gas inlet pipe is connected with a spray head, the spray head is provided with a plurality of gas outlets at intervals, and the spray head is located on the inner bottom wall of the washing tank; the spraying tank is connected with a first connecting pipe, the first connecting pipe is communicated with the washing tank, the spraying tank is provided with a spraying box, the spraying box is used for storing spraying liquid, the spraying box is connected with a plurality of spraying pipes, the spraying pipes are arranged in the spraying tank at intervals, and the spraying pipes are used for spraying the spraying liquid to the spraying tank; the activated carbon canister is connected with a second connecting pipe and a gas outlet pipe, the second connecting pipe communicates with the spraying tank, the gas outlet pipe is connected to the output end of the activated carbon canister, and the activated carbon canister is used for filtering waste gas. The waste gas filtering device disclosed by the utility model can enhance the contact between waste gas and washing liquid and improve the waste gas filtering effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical equipment technical field, especially a kind of waste gas filtering device. BACKGROUND

[0002] In chemical production process, it is often accompanied by a large number of harmful gas emissions, and it is necessary to configure a filter device to filter harmful substances in waste gas. The existing filter device usually includes a washing tank, which passes waste gas into the washing tank, so that the washing liquid in the washing tank absorbs harmful substances in waste gas. However, the waste gas is not fully contacted with the washing liquid, resulting in that the waste gas cannot be effectively purified, and the filtering effect is poor. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in the prior art. To this end, the utility model provides a waste gas filtering device, which can enhance the contact between waste gas and washing liquid and improve the waste gas filtering effect.

[0004] According to the waste gas filtering device of the first aspect embodiment of the utility model, the washing tank is used to store washing liquid, the washing tank is connected with the air inlet pipe, the air inlet pipe is connected with the spray head, the spray head is provided with a plurality of gas outlets at intervals, and the spray head is located at the inner bottom wall of the washing tank. The spray tank is connected with the first connecting pipe, the first connecting pipe is communicated with the washing tank, the spray tank is provided with a spray box, the spray box is used to store spray liquid, the spray box is connected with a plurality of spray pipes, the plurality of spray pipes are arranged in the spray tank at intervals, and the spray pipe is used to spray the spray liquid to the spray tank. The activated carbon tank is connected with the second connecting pipe and the air outlet pipe, the second connecting pipe is communicated with the spray tank, the air outlet pipe is connected with the output end of the activated carbon tank, and the activated carbon tank is used to filter waste gas.

[0005] The waste gas filtering device has at least the following beneficial effects: the waste gas is sequentially introduced into the washing tank, the spraying tank and the activated carbon tank, the washing tank stores washing liquid, the gas inlet pipe is connected with a spray head, the spray head is provided with a plurality of gas outlets, the spray head is arranged on the inner bottom wall of the washing tank, so that the waste gas is output through the gas outlets of the spray head after entering the gas inlet pipe, the waste gas can be introduced into the washing liquid, the contact between the waste gas and the washing liquid is enhanced, harmful substances in the waste gas are purified and absorbed, then the waste gas enters the spraying tank through the first connecting pipe, the spraying tank is connected with a plurality of spraying pipes, the spraying pipes can spray the spraying liquid to the spraying tank, the waste gas in the spraying tank can be in contact with the spraying liquid, so that the filtering effect of the waste gas is improved, and the residue of harmful substances in the waste gas is reduced, then the waste gas enters the activated carbon tank through the second connecting pipe, harmful substances in the waste gas are absorbed through the activated carbon tank, and finally the waste gas is discharged through the gas outlet pipe.

[0006] According to some embodiments of the present application, the washing tank is further provided with a stirring assembly, the stirring assembly comprises a driving member and a first stirring shaft, the first stirring shaft is rotatably connected to the washing tank, and the driving member is used for driving the first stirring shaft to rotate so as to stir the washing liquid.

[0007] According to some embodiments of the present application, the stirring assembly further comprises a second stirring shaft, the second stirring shaft is rotatably connected to the washing tank, the driving member is used for driving the second stirring shaft to rotate, and the rotation directions of the first stirring shaft and the second stirring shaft are opposite.

[0008] According to some embodiments of the present application, the driving member comprises a motor, a rotating shaft, a first bevel gear, a second bevel gear, a third bevel gear and a fourth bevel gear, the rotating shaft is connected to the output end of the motor, the first bevel gear and the second bevel gear are fixedly connected to the rotating shaft, the third bevel gear is fixedly connected to the first stirring shaft, the fourth bevel gear is fixedly connected to the second stirring shaft, the first bevel gear is engaged with the third bevel gear, and the second bevel gear is engaged with the fourth bevel gear.

[0009] According to some embodiments of the present application, the spraying tank is connected with a liquid collecting tank, the liquid collecting tank is used for receiving the spraying liquid, and the inner bottom wall of the spraying tank is conical to guide the spraying liquid to flow to the liquid collecting tank.

[0010] According to some embodiments of the present application, the liquid collecting tank and the spraying tank are communicated through a water pump, and the water pump is used for driving the spraying liquid to flow from the liquid collecting tank to the spraying tank.

[0011] According to some embodiments of the present application, the first connecting pipe and the second connecting pipe are both connected with a cooling assembly, and the cooling assembly is used for cooling the exhaust gas.

[0012] According to some embodiments of the present application, the first connecting pipe and the second connecting pipe are both arranged in an inclined manner, so that the input end of the first connecting pipe and the second connecting pipe is lower than the output end.

[0013] The additional aspects and advantages of the present application will be given in part in the following description, and will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0014] The present application will be further described below in conjunction with the drawings and embodiments, in which:

[0015] Figure 1 is a schematic view of the exhaust gas filtering device according to an embodiment of the present application;

[0016] Figure 2 is Figure 1 is a partial enlarged view of A in FIG. 1;

[0017] Figure 3 is a schematic view of the spray head of the exhaust gas filtering device according to an embodiment of the present application.

[0018] Reference signs:

[0019] washing tank 100, air inlet pipe 110, spray head 111, air outlet 112, stirring assembly 120, driving member 121, first stirring shaft 122, second stirring shaft 123, motor 124, rotating shaft 125, first bevel gear 126, second bevel gear 127, third bevel gear 128, fourth bevel gear 129;

[0020] spray tank 200, first connecting pipe 210, spray box 220, spray pipe 221, liquid collecting box 222, water pump 223;

[0021] activated carbon tank 300, second connecting pipe 310, air outlet pipe 320, cooling assembly 330. DETAILED DESCRIPTION

[0022] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, in which the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0023] In the description of the utility model, it needs to be understood that, if the direction description, such as the direction or position relation indicated by up, down, front, back, left, right etc. based on the direction or position relation shown in the drawing, is only for the convenience of describing the utility model and simplifying the description, and is not indicated or implied that the device or element must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as the limitation of the utility model.

[0024] In the description of the utility model, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, more than etc. is not included in the number, above, below, within etc. is included in the number.If there is a description to the first, second is only used for distinguishing technical features for the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0025] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection etc. should be understood broadly, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0026] It can be understood that, with reference to Figures 1 to 3 The utility model discloses a waste gas filter device, including washing jar 100, spray jar 200 and activated carbon jar 300, washing jar 100 is used to deposit washing liquid, and washing jar 100 is connected with air inlet pipe 110, and air inlet pipe 110 is connected with shower nozzle 111, and a plurality of gas outlets 112 are arranged at shower nozzle 111, and shower nozzle 111 is located the inner bottom wall of washing jar 100;Spray jar 200 is connected with first connecting pipe 210, and first connecting pipe 210 communicates with washing jar 100, and spray jar 200 is provided with spray tank 220, and spray tank 220 is used to deposit spray liquid, and spray tank 220 is connected with a plurality of spray pipes 221, and a plurality of spray pipes 221 are arranged at intervals in spray jar 200, and spray pipe 221 is used to spray spray liquid to spray jar 200;Activated carbon jar 300 is connected with second connecting pipe 310 and air outlet pipe 320, and second connecting pipe 310 communicates with spray jar 200, and air outlet pipe 320 is connected to the output end of activated carbon jar 300, and activated carbon jar 300 is used to filter waste gas.

[0027] The exhaust gas is sequentially introduced into the washing tank 100, the spraying tank 200 and the activated carbon tank 300. The washing tank 100 stores washing liquid. The gas inlet pipe 110 is connected with the spray head 111. The spray head 111 is provided with a plurality of gas outlets 112. The spray head 111 is arranged on the inner bottom wall of the washing tank 100. After the exhaust gas enters the washing tank 100 from the gas inlet pipe 110, the exhaust gas is output through the gas outlets 112 of the spray head 111. The exhaust gas can be introduced into the washing liquid. The contact between the exhaust gas and the washing liquid is enhanced. The harmful substances in the exhaust gas can be absorbed and purified. Then, the exhaust gas enters the spraying tank 200 through the first connecting pipe 210. The spraying tank 200 is connected with a plurality of spraying pipes 221. The spraying pipes 221 can spray the spraying liquid to the spraying tank 200. The exhaust gas in the spraying tank 200 can be contacted with the spraying liquid. The filtering effect of the exhaust gas can be improved. The residual harmful substances in the exhaust gas can be reduced. Then, the exhaust gas enters the activated carbon tank 300 through the second connecting pipe 310. The harmful substances in the exhaust gas can be absorbed by the activated carbon tank 300. Finally, the exhaust gas is discharged through the gas outlet pipe 320. The exhaust gas can be filtered three times by the washing tank 100, the spraying pipes 221 and the activated carbon tank 300. The filtering effect of the exhaust gas is enhanced. The residual harmful substances in the exhaust gas are reduced. The emission requirements of the exhaust gas can be met.

[0028] It should be noted that the gas inlet pipe 110 can be connected with an air pump (not shown in the drawings). The air pump can drive the exhaust gas to be pressed into the spray head 111. The spray head 111 is arranged on the inner bottom wall of the washing tank 100. The exhaust gas can be dispersed and output through the plurality of gas outlets 112. The exhaust gas can form bubbles in the washing liquid. The contact between the exhaust gas and the washing liquid can be enhanced. The exhaust gas can be purified and filtered. The filtering effect can be improved.

[0029] In addition, the spraying liquid can be sprayed to the exhaust gas in the spraying tank 200 through the plurality of spraying pipes 221. The contact between the exhaust gas and the spraying liquid can be enhanced. The purification and filtration of the exhaust gas can be accelerated. The exhaust gas can be filtered multiple times through the activated carbon tank 300. The filtering efficiency of the exhaust gas can be improved.

[0030] It can be understood that, with reference to Figure 1 The washing tank 100 is also provided with a stirring assembly 120. The stirring assembly 120 comprises a driving member 121 and a first stirring shaft 122. The first stirring shaft 122 is rotationally connected to the washing tank 100. The driving member 121 is used to drive the first stirring shaft 122 to rotate, so as to stir the washing liquid. The first stirring shaft 122 is rotationally connected to the washing tank 100. The first stirring shaft 122 is driven to rotate in the washing tank 100 by the driving member 121. The first stirring shaft 122 can stir the washing liquid in the washing tank 100. The mixing uniformity of the washing liquid and the exhaust gas can be improved. The harmful substances in the exhaust gas can be more fully contacted with and absorbed by the washing liquid.

[0031] It should be noted that the exhaust gas is output from the gas outlet 112, and the first stirring shaft 122 is used to stir the washing liquid, which can effectively prevent the washing liquid from forming a static layer or a dead angle in the washing tank 100, ensure that the washing liquid always remains active, further improve the removal efficiency of harmful substances in the exhaust gas, not only enhance the contact effect of the exhaust gas and the washing liquid, but also optimize the utilization efficiency of the washing liquid, thereby improving the overall exhaust gas purification quality.

[0032] Specifically, referring to Figure 1 , the stirring assembly 120 further comprises a second stirring shaft 123, the second stirring shaft 123 is rotationally connected to the washing tank 100, the driving member 121 is used to drive the second stirring shaft 123 to rotate, and the rotation directions of the first stirring shaft 122 and the second stirring shaft 123 are opposite. The second stirring shaft 123 is rotationally connected to the washing tank 100, and the driving member 121 can drive the second stirring shaft 123 to rotate in the washing tank 100, so that the second stirring shaft 123 can stir the washing liquid in the washing tank 100, thereby enhancing the mixing and stirring effect of the washing liquid in the washing tank 100 on the exhaust gas, and the rotation directions of the first stirring shaft 122 and the second stirring shaft 123 are opposite, so that the washing liquid in the washing tank 100 can form a more complex turbulent flow field, which can more effectively disperse harmful substances in the exhaust gas into the washing liquid, thereby improving the washing efficiency.

[0033] Among them, the first stirring shaft 122 and the second stirring shaft 123 are used to stir the washing liquid in the washing tank 100, so that the first stirring shaft 122 and the second stirring shaft 123 can cooperate to disperse the exhaust gas bubbles in the washing liquid, increase the contact area between the exhaust gas and the washing liquid, and accelerate the filtration and purification of the exhaust gas.

[0034] In addition, the first stirring shaft 122 and the second stirring shaft 123 are used to stir the washing liquid, so that the chemical components in the washing liquid are more uniformly distributed, thereby avoiding the phenomenon of local high or low concentration, improving the use efficiency of the washing liquid, and further improving the washing effect.

[0035] Specifically, referring to Figure 1 and Figure 2The driving member 121 comprises a motor 124, a rotating shaft 125, a first bevel gear 126, a second bevel gear 127, a third bevel gear 128 and a fourth bevel gear 129. The rotating shaft 125 is connected to the output end of the motor 124. The first bevel gear 126 and the second bevel gear 127 are fixedly connected to the rotating shaft 125. The third bevel gear 128 is fixedly connected to the first stirring shaft 122. The fourth bevel gear 129 is fixedly connected to the second stirring shaft 123. The first bevel gear 126 is engaged with the third bevel gear 128. The second bevel gear 127 is engaged with the fourth bevel gear 129. The rotating shaft 125 is rotatably connected to the washing tank 100. The rotating shaft 125 is fixedly connected to the output end of the motor 124. The first bevel gear 126 and the second bevel gear 127 are both fixedly connected to the rotating shaft 125. The third bevel gear 128 is fixedly connected to the first stirring shaft 122. The fourth bevel gear 129 is fixedly connected to the second stirring shaft 123. The motor 124 can drive the rotating shaft 125, the first bevel gear 126 and the second bevel gear 127 to rotate synchronously, so that the first bevel gear 126 can drive the third bevel gear 128 to rotate, and the second bevel gear 127 can drive the fourth bevel gear 129 to rotate. Therefore, the first stirring shaft 122 and the second stirring shaft 123 can rotate in opposite directions. In this way, one motor 124 can drive the first stirring shaft 122 and the second stirring shaft 123 to rotate, thereby reducing the manufacturing cost.

[0036] It should be noted that the first stirring shaft 122 and the second stirring shaft 123 can also be connected to two motors 124 respectively, so that the rotation of the first stirring shaft 122 and the second stirring shaft 123 is independent of each other.

[0037] It can be understood that, with reference to Figure 2 The spray tank 200 is connected with a liquid collecting tank 222. The liquid collecting tank 222 is used for receiving the spraying liquid. The inner bottom wall of the spray tank 200 is conical, so as to guide the spraying liquid to flow to the liquid collecting tank 222. By setting the inner bottom wall of the spray tank 200 to be conical, the spraying liquid can fall on the inner bottom wall of the spray tank 200 after being output from the spraying pipe 221, so that the spraying liquid can flow smoothly in the spray tank 200, thereby avoiding the generation of liquid accumulation and dead angle, and enabling the spraying liquid in the spray tank 200 to flow smoothly into the liquid collecting tank 222. By setting the liquid collecting tank 222, the collection and recycling of the spraying liquid are facilitated, the waste of the spraying liquid and environmental pollution are reduced, and the use convenience of the waste gas filtering device is improved.

[0038] Specifically, with reference to Figure 1The water pump 223 is arranged between the collecting tank 222 and the spraying tank 220, and the spraying liquid in the collecting tank 222 can be driven to the spraying tank 220 through the water pump 223, which ensures the continuity and stability of the spraying process, effectively utilizes the spraying liquid, and reduces the loss and waste of the spraying liquid.

[0039] In addition, by arranging the water pump 223 to circulate the spraying liquid in the collecting tank 222 and the spraying tank 220, the flowability of the spraying liquid can be maintained, and the stratification, precipitation or deterioration of the spraying liquid due to long-term standing can be avoided, thereby improving the reliability.

[0040] It can be understood that, referring to Figure 1 The first connecting pipe 210 and the second connecting pipe 310 are both connected with the cooling assembly 330, and the cooling assembly 330 is used for cooling the exhaust gas. The first connecting pipe 210 and the second connecting pipe 310 are both connected with the cooling assembly 330, and the temperature of the first connecting pipe 210 and the second connecting pipe 310 can be reduced through the cooling assembly 330, so that the water in the exhaust gas can be condensed when the exhaust gas passes through the first connecting pipe 210 or the second connecting pipe 310, thereby reducing the flow of water between the washing tank 100, the spraying tank 200 and the activated carbon tank 300, reducing the mixing of the washing liquid and the spraying liquid, reducing the consumption of the washing liquid and the spraying liquid, avoiding the problem of reduced filtering performance caused by excessive water, improving the filtering effect, and reducing the maintenance cost of the equipment.

[0041] Specifically, referring to Figure 1 The first connecting pipe 210 and the second connecting pipe 310 are both arranged obliquely, so that the input end of the first connecting pipe 210 and the second connecting pipe 310 is lower than the output end. The first connecting pipe 210 and the second connecting pipe 310 are both arranged obliquely, and the input end of the first connecting pipe 210 and the second connecting pipe 310 is lower than the output end, so that after the water in the exhaust gas is cooled and condensed by the cooling assembly 330, the condensed water can flow smoothly along the oblique direction of the first connecting pipe 210 and the second connecting pipe 310, facilitating the smooth return of the condensed water to the washing tank 100 or the spraying tank 200, reducing the accumulation and retention of water in the first connecting pipe 210 or the second connecting pipe 310, and helping to maintain the filtering effect of the washing tank 100, the spraying tank 200 and the activated carbon tank 300, thereby improving the filtering quality of the exhaust gas.

[0042] The embodiments of the utility model are described in detail above combined with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. An exhaust gas filter device, characterized by, The utility model relates to a kind of exhaust gas treatment device, including: Washing tank for storing washing liquid, the washing tank is connected with air inlet pipe, the air inlet pipe is connected with shower head, the shower head is spaced apart with multiple air outlets, the shower head is located in the inner bottom wall of the washing tank; Spray tank is connected with first connecting pipe, the first connecting pipe is communicated with the washing tank, the spray tank is provided with spray tank, the spray tank is used to store spray liquid, the spray tank is connected with multiple spray pipes, multiple spray pipes are arranged in the spray tank, and the spray pipe is used to spray the spray liquid to the spray tank; Activated carbon tank is connected with second connecting pipe and air outlet pipe, the second connecting pipe is communicated with the spray tank, the air outlet pipe is connected to the output end of the activated carbon tank, and the activated carbon tank is used to filter exhaust gas.

2. The exhaust filter device of claim 1, wherein, The washing tank is also provided with a stirring assembly, the stirring assembly includes a driving member and a first stirring shaft, the first stirring shaft is rotatably connected to the washing tank, and the driving member is used to drive the first stirring shaft to rotate to stir the washing liquid.

3. The exhaust filter device of claim 2, wherein, The stirring assembly further includes a second stirring shaft, the second stirring shaft is rotatably connected to the washing tank, the driving member is used to drive the second stirring shaft to rotate, and the rotation directions of the first stirring shaft and the second stirring shaft are opposite.

4. The exhaust filter device of claim 3, wherein, The driving member includes a motor, a shaft, a first bevel gear, a second bevel gear, a third bevel gear and a fourth bevel gear, the shaft is connected to the output end of the motor, the first bevel gear and the second bevel gear are fixedly connected to the shaft, the third bevel gear is fixedly connected to the first stirring shaft, the fourth bevel gear is fixedly connected to the second stirring shaft, the first bevel gear is engaged with the third bevel gear, and the second bevel gear is engaged with the fourth bevel gear.

5. The exhaust filter device of claim 1, wherein, The spray tank is connected with a liquid collecting tank, the liquid collecting tank is used to collect the spray liquid, and the inner bottom wall of the spray tank is conical to guide the flow of the spray liquid to the liquid collecting tank.

6. The exhaust filter device of claim 5, wherein, The liquid collecting tank and the spray tank are communicated by a water pump, and the water pump is used to drive the spray liquid from the liquid collecting tank to the spray tank.

7. The exhaust filter device of claim 1, wherein, The first connecting pipe and the second connecting pipe are both connected with a cooling assembly, and the cooling assembly is used to cool the exhaust gas.

8. The exhaust filter device of claim 7, wherein, The first connecting pipe and the second connecting pipe are both inclined to make the input end lower than the output end.

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