Tail gas absorption tower for table vinegar production
By optimizing the air intake, spraying, and rotating structures in the exhaust gas absorption tower, the problem of low absorption rate of the spray absorption liquid was solved, achieving efficient contact and multiple absorption between the exhaust gas and the absorption liquid, and significantly improving the absorption rate.
Patent Information
- Application Number
- CN202423006813.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-12-06
AI Technical Summary
In the current vinegar production process, the absorption liquid sprayed has a low absorption rate for exhaust gas, poor contact effect, and low absorption rate.
In the exhaust gas absorption tower, the outlet end of the inlet pipe is higher than the liquid level at the bottom of the tower body. Spray heads are installed in the upper part of the tower body, the water collection plate is inclined and located below the spray heads, the air guide channel is on the lower side of the water collection plate, the rotating cylinder rotates in the upper part of the tower body, the spray heads are distributed in a ring, the outer wall of the rotating cylinder has air holes, the guide ring and fins enhance the airflow disturbance, and the drive motor drives the rotating cylinder.
By designing water-collecting plates and air-guiding channels, the contact area and time between exhaust gas and absorbent liquid are increased, thereby improving absorption efficiency. Multiple contacts enhance the absorption rate, and the path is extended to improve the absorption effect.
Smart Images
Figure CN223464635U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tail gas absorption, in particular to a tail gas absorption tower for vinegar production. Background Art
[0002] During the production process of vinegar, a large amount of tail gas is generated. The tail gas absorption tower can be used to absorb some of the substances in the tail gas through liquid and then recycle them.
[0003] Existing absorption towers are all equipped with multiple spray heads inside the tower body for spraying absorption liquid downward. The exhaust gas enters the absorption tower from the bottom through the air inlet pipe, and comes into contact with the spray liquid during the rising process, so that it is absorbed and recovered. The existing recovery method requires spraying a large amount of absorption liquid, and the contact effect between the exhaust gas and the absorption liquid is poor, the contact time is short, and the absorption rate is low.
[0004] In the prior art, the problem of low tail gas absorption rate of the sprayed absorption liquid needs to be solved. Utility Model Content
[0005] The technical problem to be solved by the present invention is to provide a tail gas absorption tower for vinegar production in view of the above-mentioned technical deficiencies, which solves the problem of low tail gas absorption rate of the sprayed absorption liquid in the prior art.
[0006] The technical solution adopted by the utility model is to provide a tail gas absorption tower for vinegar production, comprising a tower body and an air inlet pipe for conveying tail gas to the lower part of the tower body, characterized in that the outlet end of the air inlet pipe is higher than the liquid level at the bottom of the tower body, and further comprising:
[0007] A spray head is provided in the upper part of the tower body and is used for spraying absorption liquid into the tower body;
[0008] a water collecting plate, obliquely arranged in the lower part of the tower body and located below the sprinkler head, wherein the lower side of the water collecting plate is located beside the outlet end of the air inlet pipe, and the outlet end of the air inlet pipe is lower than the lower side of the water collecting plate;
[0009] An air guide channel is provided on the lower side of the water collecting plate. The air guide channel has an air inlet and an air outlet. The air inlet is opposite to the air outlet end of the air inlet pipe, and the air outlet enters below the liquid level at the bottom of the tower body.
[0010] Further optimization of this technical solution also includes:
[0011] The rotating cylinder has a trapezoidal vertical cross-section, and the end with a smaller diameter of the rotating cylinder is located at the lower side. The rotating cylinder is rotatably arranged in the upper part of the tower body, and a plurality of the spray heads are distributed along the annular intervals on the periphery of the rotating cylinder, and the water outlet ends of the spray heads point to the outer wall of the rotating cylinder.
[0012] Further optimization of the technical scheme, the outer wall of the rotating cylinder has several ventilation holes.
[0013] Further optimization of the technical scheme, the outer wall of the rotating cylinder has several ventilation holes.
[0014] The flow guide ring is funnel-shaped and arranged on the inner wall of the tower body, and the lower part of the funnel-shaped flow guide ring extends into the interior of the rotating cylinder.
[0015] Further optimization of the technical scheme, the outer wall of the rotating cylinder has several ventilation holes.
[0016] The fins are arranged on the outer wall of the rotating cylinder.
[0017] Further optimization of the technical scheme, the outer wall of the rotating cylinder has several ventilation holes.
[0018] The driving motor is arranged on the tower body and used for driving the rotating cylinder to rotate.
[0019] Further optimization of the technical scheme, the outer wall of the rotating cylinder has several ventilation holes.
[0020] Further optimization of the technical scheme, the outer wall of the rotating cylinder has several ventilation holes.
[0021] The beneficial effects of the utility model lie in:
[0022] 1, the water collecting plate gathers the absorption liquid to the lower side, and the exhaust end of the air inlet pipe directly blows the absorption liquid flowing down on the lower side of the water collecting plate, so that the absorption liquid is blown away by the airflow, the contact area of the absorption liquid and the tail gas is increased, and the tail gas can be blown into the absorption liquid more, and the absorption efficiency is improved. The absorption liquid in the water curtain state flowing downward is directly blown by the tail gas, compared with the surface of the absorption liquid directly blown by the tail gas, the absorption liquid can be more dispersed, so that the contact area can be greatly increased.
[0023] 2, after the tail gas directly blows the absorption liquid, the tail gas and the absorption liquid are mixed into the gas guide channel, the gas guide channel can be inclined, and the gas outlet at the lower end extends into the absorption liquid inside the bottom of the tower body. The tail gas contacts the absorption liquid again in the form of bubbles, and the contact is repeated, so that the absorption rate is improved.
[0024] 3, the tail gas enters the gas guide channel after being blown horizontally, and then enters the absorption liquid inside the bottom of the tower body, and then rises to contact the sprayed absorption liquid, the path is lengthened, the contact absorption time is lengthened, and the absorption rate is improved. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 The structure schematic view of the utility model is shown in the figure;
[0026] Figure 2 The structure schematic view of the utility model is shown in the figure; Figure 1 The local enlarged structure schematic view of a is shown in the figure;
[0027] Figure 3 The utility model discloses a Figure 1 Partial enlarged structure diagram of b in the middle;
[0028] Marked illustration in the drawing: 1, tower body;101, exhaust duct;102, liquid discharge duct;103, air inlet pipe;1031, air outlet end;2, spray head;3, water collecting plate;301, exhaust hole;4, air guide channel;401, air inlet;402, air outlet;5, rotary cylinder;501, air hole;502, fin;6, flow guide ring;7, driving motor. DETAILED DESCRIPTION
[0029] The utility model will be explained further in detail in combination with the drawings and specific embodiment.
[0030] In order to make the drawing simple, only the part relevant to the utility model is shown in each drawing, and it does not represent the actual structure of the product. In addition, in order to make the drawing simple and convenient to understand, the components with the same structure or function are only schematically shown in some drawings, or only one of them is marked. In this paper, "one" not only means "only one", but also can mean "more than one", and "several" includes "two" and "more than two".
[0031] In this paper, it is necessary to point out that, unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, for example, it can be fixed connection, can also be detachable connection, or integral connection;It can be mechanical connection, or electrical connection;It can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.
[0032] In addition, in the description of the present application, the terms "first", "second" and the like are only used for distinguishing description, and cannot be understood as indicating or implying relative importance.
[0033] As Figure 1-3As shown, a tail gas absorption tower for vinegar production includes a tower body 1, a gas inlet pipe 103 for conveying tail gas to the lower part of the tower body 1, and an outlet end 1031 of the gas inlet pipe 103 being higher than the bottom liquid level in the tower body 1. The tail gas absorption tower further includes a spray head 2 arranged at the upper part of the tower body 1 for spraying absorption liquid into the tower body 1, a water collecting plate 3 arranged at the lower part of the tower body 1 below the spray head 2, the lower side of the water collecting plate 3 being located beside the outlet end 1031 of the gas inlet pipe 103, and the outlet end 1031 of the gas inlet pipe 103 being lower than the lower side of the water collecting plate 3, and a gas guide channel 4 arranged at the lower side of the water collecting plate 3, the gas guide channel 4 having an inlet 401 opposite to the outlet end 1031 of the gas inlet pipe 103 and an outlet 402 below the bottom liquid level in the tower body 1. The water collecting plate 3 has vertically arranged exhaust holes 301. The upper part of the tower body 1 has a gas exhaust pipe 101, and the lower part of the tower body 1 has a liquid exhaust pipe 102.
[0034] In use, the tail gas enters the lower part of the tower body 1 through the gas inlet pipe 103, the spray head 2 sprays absorption liquid into the upper part of the tower body 1, most of the absorption liquid naturally falls onto the water collecting plate 3, flows along the inclined water collecting plate 3 to the lower side, and then continues to flow downward, the outlet end 1031 of the gas inlet pipe 103 is lower than the lower side of the water collecting plate 3 but higher than the liquid level of the absorption liquid at the bottom of the tower body 1, the tail gas directly blows the absorption liquid naturally falling from the lower side of the water collecting plate 3, which disperses the absorption liquid into water droplets, and the tail gas contacts the absorption liquid in a large area, and the tail gas also enters the inside of the absorption liquid droplets, greatly increasing the effective contact area of the tail gas and the absorption liquid and improving the absorption rate. After the absorption liquid is dispersed, part of the tail gas overflows from the inlet 401 of the gas guide channel 4 and directly rises, and part of the tail gas and the absorption liquid enter the gas guide channel 4, under the high pressure of the outlet end 1031 of the gas inlet pipe 103, the tail gas and the absorption liquid enter the inside of the absorption liquid at the bottom of the tower body 1 through the gas guide channel 4, and the tail gas rises in the form of bubbles and contacts the absorption liquid. After the tail gas is discharged from the absorption liquid at the bottom, it continues to rise and contacts the absorption liquid sprayed downward, and finally the tail gas is discharged from the gas exhaust pipe 101 at the upper part of the tower body 1, and after being discharged, it can be subjected to the next step of treatment according to the processing requirements.
[0035] The liquid exhaust pipe 102 at the lower part of the tower body 1 can discharge the absorption liquid at the bottom of the tower body 1, and after the absorption liquid absorbs part of the gas in the tail gas, it can be recycled or discharged according to the production process requirements.
[0036] The main body of the tower body 1 is generally in a cylindrical structure, and the water collecting plate 3 is arranged in an inclined manner. In the inclined cross section, the cross section of the tower body 1 is in an elliptical shape, and the water collecting plate 3 can be integrally matched with the elliptical shape. The lower side of the water collecting plate 3 has a spacing with the inner wall of the tower body 1, and the gas outlet end 1031 of the gas inlet pipe 103 is located in the space corresponding to the spacing. The water collecting plate 3 can collect the absorption liquid at one place through the inclination angle and is opposite to the position of the gas outlet end 1031 of the gas inlet pipe 103. The water collecting plate 3 can also be in a funnel structure, and the gas outlet end 1031 of the gas inlet pipe 103 is opposite to the lower port of the funnel structure. The gas guide channel 4 is in a tubular structure, which is convenient for guiding the tail gas to be input below the liquid surface at the bottom of the tower body 1.
[0037] The gas outlet pipe is horizontally arranged, which reduces the right-angle bend and is beneficial to reducing the energy loss of the tail gas directly blowing. When the tail gas entering the bottom of the tower body 1 rises, it can rise from the lower part of the water collecting plate 3 or from the exhaust hole 301 on the water collecting plate 3.
[0038] Further, the rotating cylinder 5 is further provided, which is in a vertical trapezoidal cross section and has a smaller diameter at the lower side. The rotating cylinder 5 is arranged in the upper part of the tower body 1 in a rotating manner, and a plurality of spray heads 2 are arranged in the periphery of the rotating cylinder 5 in an annular and spaced manner. The water outlet end of the spray head 2 is directed to the outer wall of the rotating cylinder 5.
[0039] In use, the spray head 2 sprays the absorption liquid to the outer wall of the rotating cylinder 5 to produce a splashing atomization effect. The absorption liquid can be in contact with the tail gas for absorption during the spraying process and after atomization. Meanwhile, the rotating cylinder 5 can further disperse the absorption liquid, and can also drive the tail gas around the rotating cylinder 5 to produce a spiral rising track, thereby prolonging the rising path of the tail gas and the contact time of the tail gas and the absorption liquid.
[0040] The lower end of the rotating cylinder 5 is the side with a smaller diameter, which is convenient for driving the surrounding airflow disturbance.
[0041] The spray head 2 can be uniformly arranged in an annular manner, so that the spraying is more uniform. Meanwhile, the spray head 2 can be arranged in multiple layers.
[0042] Further, the outer wall of the rotating cylinder 5 has a plurality of air holes 501.
[0043] In use, the air holes 501 on the rotating cylinder 5 are convenient for the absorption liquid in the rotating cylinder 5 to be thrown out to the lower side.
[0044] The spray head 2 can be opposite to the air holes 501, and part of the absorption liquid is sprayed into the rotating cylinder 5 through the air holes 501 and then thrown out, thereby prolonging the time of the absorption liquid in the upper part of the tower body 1.
[0045] Further, the flow guide ring 6 is further provided, which is in a funnel structure and is arranged on the inner wall of the tower body 1. The lower part of the funnel-shaped flow guide ring 6 extends into the inside of the rotating cylinder 5.
[0046] In use, the funnel-shaped flow guide ring 6 is arranged on the upper side of the rotating cylinder 5, and an annular gap is formed between the flow guide ring 6 and the inner wall of the rotating cylinder 5, forming a guiding channel for the tail gas, most of the tail gas rising from the gap between the outer wall of the rotating cylinder 5 and the inner wall of the tower body 1, then being limited by the flow guide ring 6, and then entering the inside of the rotating cylinder 5 downward, and finally rising upward from the opening in the middle of the flow guide ring 6, extending the rising path of the tail gas, and when the tail gas is between the flow guide ring 6 and the rotating cylinder 5, the tail gas can be in contact with the absorption liquid passing through the air hole 501.
[0047] Further, the fin 502 is arranged on the outer wall of the rotating cylinder 5.
[0048] In use, the fin 502 is arranged on the outer wall of the rotating cylinder 5, and a plurality of fins 502 can be arranged to improve the rotating driving force of the tail gas and the stirring air flow capacity.
[0049] Further, the driving motor 7 is arranged on the tower body 1 and used for driving the rotating cylinder 5 to rotate.
[0050] In use, the rotating cylinder 5 is actively rotated and can be driven by the driving motor 7, and the driving motor 7 can be arranged on the outer upper end of the tower body 1 and drives the rotating cylinder 5 to rotate through the driving shaft.
[0051] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.
Claims
1. A tail gas absorption tower for vinegar production, comprising a tower body (1), and a gas inlet pipe (103) for feeding tail gas into the lower part of the tower body (1), characterized in that, The air outlet end (1031) of the air inlet pipe (103) is higher than the liquid level of the inner bottom of the tower body (1), and further comprises: A spray head (2) is arranged at the upper part of the tower body (1) and used for spraying absorbing liquid into the tower body (1); A water collecting plate (3) is arranged at the lower part of the tower body (1) and below the spray head (2), and the lower side of the water collecting plate (3) is located beside the air outlet end (1031) of the air inlet pipe (103), and the air outlet end (1031) of the air inlet pipe (103) is lower than the lower side of the water collecting plate (3); A gas guide channel (4) is arranged at the lower side of the water collecting plate (3), and the gas guide channel (4) has an air inlet (401) and an air outlet (402), the air inlet (401) is opposite to the air outlet end (1031) of the air inlet pipe (103), and the air outlet (402) enters below the liquid level of the inner bottom of the tower body (1).
2. The tail gas absorption tower for vinegar production according to claim 1, characterized in that, Further comprising: A rotating cylinder (5) with a trapezoidal vertical section, and the smaller diameter end of the rotating cylinder (5) is located at the lower side, the rotating cylinder (5) is arranged at the upper part of the tower body (1) and rotates, a plurality of spray heads (2) are distributed on the periphery of the rotating cylinder (5) at intervals, and the water outlet end of the spray head (2) points to the outer wall of the rotating cylinder (5).
3. The tail gas absorption tower for vinegar production according to claim 2, characterized in that, The outer wall of the rotating cylinder (5) has a plurality of air holes (501).
4. The tail gas absorption tower for vinegar production according to claim 3, characterized in that, Further comprising: A flow guide ring (6) in the shape of a funnel is arranged on the inner wall of the tower body (1), and the lower part of the funnel-shaped flow guide ring (6) extends into the inside of the rotating cylinder (5).
5. The tail gas absorption tower for vinegar production according to claim 2, characterized in that, Further comprising: A fin (502) is arranged on the outer wall of the rotating cylinder (5).
6. The tail gas absorption tower for vinegar production according to claim 2, characterized in that, Further comprising: A driving motor (7) is arranged on the tower body (1) and used for driving the rotating cylinder (5) to rotate.
7. The tail gas absorption tower for vinegar production according to claim 1, characterized in that, The water collecting plate (3) has a vertically arranged air outlet hole (301).
8. The tail gas absorption tower for vinegar production according to claim 1, characterized in that, The upper part of the tower body (1) has an air outlet pipeline (101), and the lower part has a liquid outlet pipeline (102). The air outlet pipeline (101) is arranged on the upper part of the tower body (1), and the liquid outlet pipeline (102) is arranged on the lower part of the tower body (1).