Methanol hydrochloric acid waste gas absorption treatment device

Abstract

The methanol hydrochloric acid waste gas absorption treatment device comprises a first treatment tank and a second treatment tank, a transverse support is arranged at an opening in the top end of the first treatment tank and rotationally connected with an impeller, a transmission rod is fixedly connected to the bottom of the impeller, and a plurality of stirring plates are fixedly connected to the side wall of the transmission rod; a supporting frame is fixedly connected to the inner bottom of the second treatment tank, a rotating cylinder is rotationally connected to the top end surface of the supporting frame, and an exhaust port and a feeding port are formed in the top end of the second treatment tank; through double-layer treatment of spraying and adsorption, the waste gas treatment efficiency is improved, an adsorbent is convenient to replace through the arranged rotary drum, and the practicability of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to waste gas treatment technical field, concretely is a methanol hydrochloric acid waste gas absorption treatment device. BACKGROUND

[0002] Methanol and hydrochloric acid can produce waste gas containing methanol and hydrochloric acid in the production and use process, and if these waste gases are not effectively treated, they can cause serious harm to the environment and human health, both have certain corrosive and polluting, easy to cause damage to the human body, and direct emission of waste gas can pollute the atmosphere.

[0003] At present, spraying, adsorption and other methods are usually used to absorb methanol and hydrochloric acid in waste gas, but in the adsorption process, the waste gas speed is fast, the contact time with methanol and hydrochloric acid molecules is short, and the contact area is limited, which limits the absorption efficiency, and when adsorption means is taken, the adsorption capacity of the adsorbent will gradually decrease with the continuous adsorption of waste gas molecules, which is more inconvenient to replace, and affects the subsequent adsorption efficiency. Therefore, a new technical scheme is needed to solve it. UTILITY MODEL CONTENT

[0004] The utility model discloses a methanol hydrochloric acid waste gas absorption treatment device, solve the waste gas speed fast, the contact time with methanol and hydrochloric acid molecules is short, and the contact area is limited, which limits the absorption efficiency, and when adsorption means is taken, the adsorption capacity of the adsorbent will gradually decrease with the continuous adsorption of waste gas molecules, which is more inconvenient to replace, and affects the subsequent adsorption efficiency problem.

[0005] To achieve the above object, the utility model provides the following technical scheme: a methanol hydrochloric acid waste gas absorption treatment device, including no.

[0006] In the technical scheme, the first treatment tank and the second treatment tank are arranged to respectively perform spraying and adsorption, the impeller and the transmission rod are driven to rotate by kinetic energy of waste gas blowing, the stirring plate is rotated to stir air flow, the downward flow rate of the waste gas is reduced, the contact time and area of the waste gas and the absorption liquid of spraying are increased, and therefore the adsorption effect is improved.

[0007] Preferably, the side wall of the first treatment tank is penetrated by a plurality of spray pipes, the surface of the spray pipe is provided with a plurality of spray openings, and the position of the spray pipe penetrating the first treatment tank is sealed.

[0008] Preferably, the first treatment tank and the second treatment tank are connected to each other through a pipeline, and the bottom of the first treatment tank is provided with a drainage opening.

[0009] Preferably, the inner side wall of the rotating drum is fixedly connected with a cross partition plate, the outer side wall of the rotating drum is in contact with the inner side wall of the second treatment tank, and the outer side wall of the rotating drum and the top end and the bottom of the cross partition plate are all provided with sealing strips.

[0010] Preferably, the top end of the second treatment tank is fixedly connected with a servo motor, and the transmission shaft output end of the servo motor is fixedly connected with the top end of the cross partition plate.

[0011] Preferably, the support frame and the inner side wall of the second treatment tank are fixedly connected with a blocking net, and the bottom of the second treatment tank below the support frame is provided with a discharge opening.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1. The first treatment tank and the second treatment tank are arranged to respectively perform spraying and adsorption, the impeller and the transmission rod are driven to rotate by kinetic energy of waste gas blowing, the stirring plate is rotated to stir air flow, the downward flow rate of the waste gas is reduced, the contact time and area of the waste gas and the absorption liquid of spraying are increased, and therefore the adsorption effect is improved.

[0014] 2. The rotating drum is filled with adsorbent to adsorb methanol and hydrochloric acid in waste gas, when the adsorbent needs to be replaced, the rotating drum is only needed to be rotated, the old adsorbent is automatically discharged when the rotating drum passes through the opening area of the support frame, then the new adsorbent is only needed to be filled into the rotating drum along the charging opening, which is convenient and fast, the adsorption efficiency is ensured, and the practicability of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Other features, objects, and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments thereof, when read in conjunction with the accompanying drawings:

[0016] Figure 1 It is an overall view of the present application;

[0017] Figure 2 It is a schematic view of the internal structure of the present application;

[0018] Figure 3 It is a schematic view of the internal structure of the No. 2 treatment tank of the present application;

[0019] Figure 4 It is a schematic view of the rotating drum structure of the present application;

[0020] Figure 5 It is a schematic view of the support frame structure of the present application;

[0021] Figure 6 It is a schematic view of the cross-sectional structure of the No. 2 treatment tank of the present application.

[0022] In the figure: 1, No. 1 treatment tank; 2, impeller; 3, transmission rod; 301, stirring plate; 4, spray pipe; 5, drain port; 6, No. 2 treatment tank; 7, support frame; 701, intercepting net; 8, rotating drum; 801, cross partition; 9, charging port; 10, discharge port; 11, servo motor; 12, exhaust port. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the following will be further described in conjunction with specific embodiments.

[0024] A methanol hydrochloric acid waste gas absorption treatment device, see Figures 1 to 6 , including No. 1 treatment tank 1 and No. 2 treatment tank 6, the top end opening of No. 1 treatment tank 1 is provided with a transverse support and is rotationally connected with an impeller 2, the bottom of the impeller 2 is fixedly connected with a transmission rod 3, the side wall of the transmission rod 3 is fixedly connected with a plurality of stirring plates 301, the inner bottom of the No. 2 treatment tank 6 is fixedly connected with a support frame 7, the top end surface of the support frame 7 is rotationally connected with a rotating drum 8, and the top end of the No. 2 treatment tank 6 is provided with an exhaust port 12 and a charging port 9.

[0025] Specifically, as Figure 1 and Figure 2As shown, the side wall of the first treatment tank 1 is penetrated by several spray pipes 4, the surface of the spray pipe 4 is provided with several spray openings, and the position of the spray pipe 4 penetrating the first treatment tank 1 is sealed, the absorption liquid enters the first treatment tank 1 through the spray pipe 4 and is sprayed from the spray opening, the passing waste gas is sprayed and treated, the methanol and hydrochloric acid in the waste gas are absorbed, and the spray pipe 4 is provided with multiple roots, so that the spraying area is improved, full coverage is achieved, and the absorption effect is improved.

[0026] It is worth noting that, as Figure 2 shown, the first treatment tank 1 and the second treatment tank 6 are connected to each other by a pipeline, the bottom of the first treatment tank 1 is provided with a drain 5, the connected pipeline is inclined, and one end of the second treatment tank 6 is located at a high position, so that the sprayed absorption liquid can be prevented from flowing into the second treatment tank 6, the sprayed absorption liquid can flow to the bottom of the first treatment tank 1, the drain 5 is opened after the waste gas passes to discharge the absorption liquid, and the absorption liquid can be treated professionally subsequently, so that the accumulation of the absorption liquid is avoided.

[0027] It is worth noting that, as Figure 4 shown, the inner side wall of the rotating drum 8 is fixedly connected with a cross partition plate 801, the outer side wall of the rotating drum 8 is in contact with the inner side wall of the second treatment tank 6, the cross partition plate 801 divides the inside of the rotating drum 8 into four areas, in use, only two of the four areas need to be filled with adsorbent, the two areas filled with adsorbent can occupy half of the second treatment tank 6, so that the waste gas can pass through the two areas and the adsorbent can absorb the residual methanol and hydrochloric acid in the two areas; and the outer side wall of the rotating drum 8 is provided with sealing strips at the upper and lower edges and the top and bottom of the cross partition plate 801, so that the waste gas cannot escape from the gap between the second treatment tank 6 and the rotating drum 8, and the cross partition plate 801 blocks the right side space of the second treatment tank 6, so that the waste gas cannot enter, the new adsorbent can be filled, and the old adsorbent can be discharged.

[0028] It is worth noting that, as Figure 6 shown, the top center of the second treatment tank 6 is fixedly connected with a servo motor 11, the output end of the transmission shaft of the servo motor 11 is fixedly connected with the top center of the cross partition plate 801, when the adsorbent needs to be replaced, the servo motor 11 is started to drive the rotating drum 8 to rotate, and the old adsorbent in the four areas in the rotating drum 8 is discharged through the opening of the support frame 7, which is convenient and fast.

[0029] It is worth noting that, as Figure 5 and Figure 6As shown, the support frame 7 and the inner side wall of the second treatment tank 6 are fixedly connected with the intercepting net 701, the intercepting net 701 can cover the bottom of the rotating drum 8, and the falling of the adsorbent is avoided, when the four areas inside the rotating drum 8 pass through the opening of the support frame 7 during the replacement of the adsorbent, the old adsorbent is discharged, when the rotating drum 8 rotates to the solid bottom of the support frame 7, the new adsorbent is poured into the charging port 9 at this time, then the rotating drum 8 is rotated, the filled area is rotated to the side of the intercepting net 701, then the adjacent area is continuously filled with the adsorbent, and then the rotating drum 8 is rotated, so that the two areas inside the rotating drum 8 filled with the new adsorbent reach the area of the intercepting net 701, thereby facilitating the replacement of the adsorbent, ensuring the adsorption efficiency, and the bottom of the second treatment tank 6 is provided with a discharge port 10 below the support frame 7, so that the old adsorbent is discharged from the second treatment tank 6.

[0030] Working principle: the waste gas containing methanol and hydrochloric acid enters from the opening at the top end of the first treatment tank 1, impacts the impeller 2 to make it rotate, the impeller 2 drives the bottom stirring plate 301 to rotate synchronously through the transmission rod 3, the stirring plate 301 slows down the flow rate of the waste gas through the vortex effect, prolongs the residence time of the waste gas in the tank, at the same time, the side wall spray pipe 4 uniformly sprays the absorption liquid to the tank through the surface spray port, the waste gas is fully contacted with the absorption liquid, and the methanol and hydrochloric acid molecules are absorbed by the spray liquid and are converted into liquid or soluble substances, the preliminarily purified waste gas enters the second treatment tank 6 through the inclined pipeline, and the waste gas entering the second treatment tank 6 passes through the rotating drum 8 from bottom to top, the rotating drum 8 is divided into four areas by the cross partition plate 801, two of which are filled with adsorbent, and the residual methanol and hydrochloric acid molecules are efficiently captured by the adsorbent when the waste gas passes through the adsorbent layer, and the purified gas is discharged through the exhaust port 12 at the top and meets the discharge standard, when the adsorbent is saturated, the servo motor 11 is started to drive the rotating drum 8 to rotate, the old adsorbent is discharged through the discharge port 10 due to gravity when the filled area of the rotating drum 8 passes through the opening of the support frame 7, at the same time, the operator fills the new adsorbent into the empty area of the rotating drum 8 through the charging port 9, and the rotating drum 8 continues to rotate to the intercepting net 701 coverage area, so that the adsorbent reaches the path of the waste gas, thereby facilitating the replacement of the adsorbent, ensuring the adsorption effect and improving the practicability of the device.

[0031] In addition, the components designed in the utility model are all general standard components or components known by those skilled in the art, the structure and principle of which can be known by the technical personnel through a technical manual or through a conventional experimental method, and the technical personnel in the field can completely realize it without further description, and the content protected by the utility model does not involve the improvement of the internal structure and method.

[0032] The utility model discloses an embodiment discloses the better embodiment, but is not limited to this, and the ordinary skill of the art, the spirit of the utility model is appreciated to the above -mentioned embodiment, and different extension and change are made, but as long as not departing from the spirit of the utility model, all are in the protection range of the utility model.

Claims

1. A methanol hydrochloric acid exhaust gas absorption treatment device, comprising a first treatment tank (1) and a second treatment tank (6), characterized in that: The top opening of the first processing tank (1) is provided with a transverse support and a rotating connection with an impeller (2), the bottom of the impeller (2) is fixedly connected with a transmission rod (3), the side wall of the transmission rod (3) is fixedly connected with a plurality of stirring plates (301), the inner bottom of the second processing tank (6) is fixedly connected with a support frame (7), the top surface of the support frame (7) is rotatably connected with a rotating drum (8), and the top of the second processing tank (6) is provided with an exhaust port (12) and a feeding port (9).

2. A methanolic hydrochloric acid off-gas absorption treatment device according to claim 1, characterized in that: The side wall of the first processing tank (1) is penetrated by a plurality of spray pipes (4), the surface of the spray pipe (4) is provided with a plurality of spray openings, and the position of the spray pipe (4) penetrating the first processing tank (1) is sealed.

3. A methanolic hydrochloric acid exhaust gas absorption treatment device according to claim 1, characterized in that: The first processing tank (1) and the second processing tank (6) are connected with each other through a pipeline, and the bottom of the first processing tank (1) is provided with a drainage port (5).

4. A methanolic hydrochloric acid exhaust gas absorption treatment device according to claim 1, characterized in that: The inner side wall of the rotating drum (8) is fixedly connected with a cross partition plate (801), the outer side wall of the rotating drum (8) is in contact with the inner side wall of the second processing tank (6), and the outer side wall of the rotating drum (8) and the top and bottom of the cross partition plate (801) are all provided with sealing strips.

5. A methanolic hydrochloric acid exhaust gas absorption treatment device according to claim 1, characterized in that: The top center of the second processing tank (6) is fixedly connected with a servo motor (11), and the output shaft of the servo motor (11) is fixedly connected with the top center of the cross partition plate (801).

6. A methanolic hydrochloric acid exhaust gas absorption treatment device according to claim 1, characterized by: The inner side wall of the second processing tank (6) is fixedly connected with a support frame (7), and the bottom of the second processing tank (6) is provided with a discharge port (10) below the support frame (7).

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