A tail gas treatment device for red yeast rice production

Abstract

The present application discloses an exhaust gas treatment device for red yeast rice production, which belongs to the field of exhaust gas purification. An exhaust gas treatment device for red yeast rice production includes an air intake pipe and an exhaust pipe, as well as a primary spray tower, the primary spray tower is connected to the air intake pipe; an adsorption filter, the adsorption filter is connected to the primary spray tower; a multi-stage spray tower, the multi-stage spray tower is connected to the air intake pipe; a fan, the fan is connected to the adsorption filter and the multi-stage spray tower, and the exhaust pipe is connected to the fan. The present application has the advantage of improving the exhaust gas treatment effect when the exhaust gas treatment volume is large.

Description

Technical Field

[0001] The present application relates to the field of tail gas purification, and in particular to a tail gas treatment device for red yeast rice production. Background Art

[0002] Exhaust gas purification is an indispensable link in the production and manufacturing of enterprises. In recent years, with the increasingly serious problem of atmospheric environmental pollution, the restriction of exhaust gas pollutants has received more and more attention.

[0003] Taking the production of red yeast rice pigment as an example, a large amount of high-temperature exhaust gas is inevitably generated after the spray drying step. The exhaust gas needs to be purified before it can be discharged into the outside air, so an exhaust gas treatment device is also needed. The common exhaust gas treatment method is to pass the exhaust gas into a spray tower. The spray tower is equipped with a spray layer. The spray layer sprays water to absorb the chemical components and dust in the exhaust gas to purify the exhaust gas. Multiple spray layers can be set from bottom to top to improve the purification effect.

[0004] However, when the exhaust gas treatment volume is large, a single spray tower is difficult to cope with, and the method of increasing the number of spray layers is not effective, because the more spray layers there are, the more obvious the marginal effect of purification is, and the manufacturing cost and energy consumption cost of the spray tower cannot be balanced with the purification effect, which ultimately leads to unsatisfactory exhaust gas treatment effect. Summary of the invention

[0005] In order to improve the exhaust gas treatment effect when the exhaust gas treatment volume is large, the present application provides an exhaust gas treatment equipment for Monascus red production.

[0006] The present application provides a tail gas treatment device for red yeast rice production using the following technical solution: An exhaust gas treatment device for red yeast rice production includes an air intake pipe and an exhaust pipe, and: A primary spray tower, the primary spray tower being in communication with the air inlet pipe; An adsorption filter, the adsorption filter is connected to the primary spray tower; A multi-stage spray tower, wherein the multi-stage spray tower is connected to the air inlet pipe; A fan is connected to the adsorption filter and the multi-stage spray tower, and the exhaust pipe is connected to the fan.

[0007] By adopting the above technical solution, the first-stage spray tower is combined with the multi-stage spray tower, and the first-stage spray tower can share the purification pressure of the multi-stage spray tower. When the amount of tail gas to be treated is large, the tail gas passes through the first-stage spray tower and the multi-stage spray tower simultaneously to increase the tail gas treatment volume. After passing through the first-stage spray tower, the tail gas enters the adsorption filter, and the impurities in the tail gas are absorbed by the adsorbent in the adsorption filter, thereby ensuring the tail gas purification effect after passing through the first-stage spray tower. In addition, the first-stage spray tower has a small number of spray layers, so the energy consumption is low, achieving a balance between purification effect and operating cost.

[0008] Optionally, a cooling mechanism is also included, and the cooling mechanism is connected to the air intake pipe.

[0009] By adopting the above technical solution, when the exhaust gas is high-temperature flue gas, the cooling mechanism can cool down the exhaust gas before it enters the spray tower, which not only improves the purification effect of the spray tower, but also the high-temperature flue gas that passes through the first-stage spray tower is not cooled enough, which will affect the filtering effect of the adsorption filter. Therefore, cooling the high-temperature flue gas in advance helps to improve the purification effect of the exhaust gas.

[0010] Optionally, a first temperature sensor is provided in the intake pipe before the exhaust gas passes through the cooling mechanism, a second temperature sensor is provided in the intake pipe after the exhaust gas passes through the cooling mechanism, and a third temperature sensor is provided in the connecting pipe between the first-stage spray tower and the adsorption filter.

[0011] By adopting the above technical scheme, the exhaust gas temperature before and after passing through the cooling mechanism and the exhaust gas temperature after passing through the first-stage spray tower are obtained, so as to judge the degree to which the exhaust gas can be cooled and the degree to which the first-stage spray tower cools the exhaust gas. Based on this, the amount of exhaust gas entering the first-stage spray tower and the multi-stage spray tower can be adjusted to improve the comprehensive purification effect.

[0012] Optionally, a three-way pipe is connected between the air inlet pipe and the first-stage spray tower and the multi-stage spray tower. An air guide mechanism is arranged inside the three-way pipe, and the exhaust gas flows to the first-stage spray tower and the multi-stage spray tower after passing through the air guide mechanism.

[0013] By adopting the above technical solution, the air guide mechanism can guide the exhaust gas flow direction inside the three-way pipe, thereby changing the exhaust gas flow entering the first-stage spray tower and the multi-stage spray tower to adapt to the exhaust gas temperature and exhaust gas processing volume, reduce energy consumption and spray tower losses, and ensure the purification effect.

[0014] Optionally, the air guide mechanism includes an air guide seat, an air guide wheel and a movable assembly, the air guide seat is fixedly connected between the belly and the shoulder of the three-way pipe, two air guide wheels are provided, both of which are slidably and rotatably installed on the air guide seat, the two air guide wheels are respectively close to the first-stage spray tower and the multi-stage spray tower, and the movable assembly is used to move the air guide wheels.

[0015] By adopting the above technical solution, after the exhaust gas enters the three-way pipe, it blows the air guide wheel to rotate. The air guide wheel itself acts as an obstacle, and the rotation of the air guide wheel will disturb the continuous flow of the airflow. Moving the air guide wheel can adjust the influence of the air guide wheel on different channels in the three-way pipe, thereby adjusting the flow rate of the exhaust gas that finally flows into the first-stage spray tower and the multi-stage spray tower respectively.

[0016] Optionally, in the three-way pipe, the angle between the extension direction of the pipe connecting the first-stage spray tower and the extension direction of the pipe connecting the multi-stage spray tower is 180°, the angle between the moving paths of the two air guide wheels is 130°~150°, and the cross-sectional area of ​​the air guide wheel accounts for 40%~50% of the cross-sectional area of ​​the three-way pipe.

[0017] By adopting the above technical solution, the moving path of the air guide wheel is inclined to the pipe extension direction of the tee pipe, so that the air guide wheel can better affect the flow of exhaust gas with a small position change, and the exhaust gas purification process can be adjusted more conveniently.

[0018] Optionally, the moving component includes an eccentric cam and an elastic member, the eccentric cam is rotatably mounted on the air guide seat and abuts against the air guide wheel, the elastic member is fixedly connected to the air guide seat, and the elastic force of the elastic member drives the air guide wheel to move toward the eccentric cam.

[0019] By adopting the above technical solution, since the distance between the edge of the eccentric cam and the rotating shaft is inconsistent, the eccentric cam drives the air guide wheel to move when it rotates, and the synchronization of the movement of the two air guide wheels is achieved, that is, when one air guide wheel approaches the pipe on one side of the tee pipe, the other air guide wheel moves away from the pipe on the other side of the tee pipe.

[0020] Optionally, the moving component also includes a rotating shaft and an electric drive component, the rotating shaft is rotatably mounted on the air guide seat and the three-way pipe, the electric drive component is used to drive the rotating shaft to rotate, and the rotating shaft is fixedly connected to the rotating shaft of the eccentric cam.

[0021] By adopting the above technical solution, the electric drive component can effectively control the rotation of the eccentric cam, thereby adjusting the flow trend of the exhaust gas.

[0022] Optionally, the air guide seat is equipped with a folding protective cover.

[0023] By adopting the above technical solution, the foldable protective cover protects the internal structure of the air guide seat without affecting the movement of the air guide wheel, thereby improving the durability of the air guide mechanism.

[0024] Optionally, the adsorption filter is an activated carbon filter box.

[0025] By adopting the above technical solution, activated carbon is a good adsorbent and can effectively adsorb harmful substances in exhaust gas.

[0026] In summary, this application has the following beneficial effects: 1. This application combines a primary spray tower with a multi-stage spray tower. The primary spray tower can share the purification pressure of the multi-stage spray tower. When the amount of tail gas to be treated is large, the tail gas passes through the primary spray tower and the multi-stage spray tower simultaneously to increase the tail gas treatment volume. After passing through the primary spray tower, the tail gas enters the adsorption filter, and the adsorbent in the adsorption filter absorbs the impurities in the tail gas, thereby ensuring the tail gas purification effect after passing through the primary spray tower. In addition, the primary spray tower has a small number of spray layers, so the energy consumption is low, achieving a balance between purification effect and operating cost.

[0027] 2. The present application also guides the exhaust gas flow direction inside the three-way pipe through an air guide mechanism, thereby changing the exhaust gas flow entering the first-stage spray tower and the multi-stage spray tower to adapt to the exhaust gas temperature and exhaust gas processing volume, reduce energy consumption and spray tower losses, and ensure purification effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional structural diagram of the exhaust gas treatment equipment of an embodiment of the present application.

[0029] Figure 2 It is a cross-sectional structural diagram of a multi-stage spray tower according to an embodiment of the present application.

[0030] Figure 3 It is a cross-sectional structural diagram of the three-way pipe of the embodiment of the present application.

[0031] Figure 4 It is a three-dimensional structural diagram of the wind guide wheel of an embodiment of the present application.

[0032] Figure 5 It is a cross-sectional structural diagram of the air guide mechanism of an embodiment of the present application.

[0033] Figure 6 It is a schematic diagram of the flow of exhaust gas in the three-way pipe of an embodiment of the present application.

[0034] Figure 7 It is a three-dimensional structural diagram of the three-way pipe of the embodiment of the present application.

[0035] Description of reference numerals: 1. Inlet pipe; 11. Three-way pipe; 12. Cooling box; 2. One-stage spray tower; 21. Adsorption filter; 3. Multi-stage spray tower; 31. Spray layer; 32. Packing layer; 4. Fan; 5. Exhaust pipe; 6. Air guide seat; 61. Air guide wheel; 611. Wheel shaft; 612. Wheel blade; 613. Mounting rod; 62. Eccentric cam; 63. Elastic part; 64. Sliding block; 7. Electric drive part; 71. Rotating shaft; 8. Protection plate; 81. Folding protection cover. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-7 This application is described in further detail.

[0037] The present application discloses an exhaust gas treatment device for red yeast rice production. Figure 1 As shown, an exhaust gas treatment device for red yeast rice production includes an air intake pipe 1, a primary spray tower 2, a multi-stage spray tower 3, an adsorption filter 21, a fan 4 and an exhaust pipe 5. The air intake pipe 1 is connected with a three-way pipe 11, and the two ends of the three-way pipe 11 are respectively connected with the primary spray tower 2 and the multi-stage spray tower 3, the adsorption filter 21 is connected with the primary spray tower 2, the fan 4 is connected with the adsorption filter 21 and the multi-stage spray tower 3, and the exhaust pipe 5 is connected with the fan 4.

[0038] The exhaust gas reaches the exhaust gas treatment equipment through the intake pipe 1, and flows into the primary spray tower 2 and the multi-stage spray tower 3 at the three-way pipe 11 at the same time. After leaving the multi-stage spray tower 3, the exhaust gas reaches the fan 4. After leaving the primary spray tower 2, the exhaust gas passes through the adsorption filter 21 and reaches the fan 4. Finally, the exhaust gas is collected and discharged from the exhaust pipe 5.

[0039] The exhaust gas treatment device also includes a cooling mechanism, which is connected to the intake pipe 1. The cooling mechanism can be air-cooled or water-cooled, and in this embodiment, it is specifically water-cooled. The cooling mechanism includes a cooling box 12 and cooling fins, and the cooling fins are installed on the outer wall of the intake pipe 1. The cooling box 12 is arranged around the outer side of the intake pipe 1 and covers the cooling fins. Continuously passing cooling water into the cooling box 12 can realize the cooling function of the intake pipe 1, thereby realizing the cooling of the exhaust gas before entering the spray tower, and improving the purification effect of the spray tower on the exhaust gas.

[0040] The adsorption filter 21 is an activated carbon filter box. Activated carbon is a good adsorbent and can effectively adsorb harmful substances in the exhaust gas.

[0041] like Figure 1 and Figure 2As shown, specifically, a spray layer 31 and a packing layer 32 are provided inside the spray tower. The tail gas flows from bottom to top in the spray tower. The spray layer 31 sprays water to absorb the chemical components of the tail gas. At the same time, the packing layer 32 increases the contact area between water and tail gas, thereby improving the absorption effect. The first-stage spray tower 2 refers to a spray tower that is only provided with one spray layer 31 and one packing layer 32. The multi-stage spray tower 3 refers to a spray tower that is provided with multiple spray layers 31 and multiple packing layers 32. Each spray layer 31 and one packing layer 32 constitute a spray unit. The spray units are spaced from bottom to top, thereby performing a deeper purification treatment on the tail gas. In this embodiment, three spray layers 31 and three packing layers 32 are provided in the multi-stage spray tower 3.

[0042] The primary spray tower 2 is combined with the multi-stage spray tower 3, and the primary spray tower 2 can share the purification pressure of the multi-stage spray tower 3. When the amount of tail gas to be treated is large, the tail gas passes through the primary spray tower 2 and the multi-stage spray tower 3 simultaneously, increasing the tail gas treatment amount. After passing through the primary spray tower 2, the tail gas enters the adsorption filter 21, and the impurities in the tail gas are absorbed by the adsorbent in the adsorption filter 21, thereby ensuring the tail gas purification effect after passing through the primary spray tower 2. In addition, since the number of spray layers 31 of the primary spray tower 2 is small, the energy consumption is low, achieving a balance between purification effect and operating cost.

[0043] like Figure 1 and Figure 3 As shown, in the three-way pipe 11, the angle between the extension direction of the pipeline connected to the primary spray tower 2 and the extension direction of the pipeline connected to the multi-stage spray tower 3 is 180°, that is, the three-way pipe 11 is in a T-shaped structure. An air guide 4 is arranged inside the three-way pipe 11, and the exhaust gas flows to the primary spray tower 2 and the multi-stage spray tower 3 after passing through the air guide 4.

[0044] like Figure 3 and Figure 4 As shown, the air guide mechanism 4 includes an air guide seat 6, an air guide wheel 61 and a moving assembly. The air guide seat 6 is fixedly connected between the belly and the shoulder of the three-way pipe 11. A slider 64 is slidably connected inside the air guide seat 6. The slider 64 is fixedly connected to a mounting rod 613. Two air guide wheels 61 are provided. The air guide wheels 61 include a wheel shaft 611 and a plurality of blades 612. The blades 612 are fixedly connected to the side wall of the wheel shaft 611 and are distributed in a circumferential divergent shape. The wheel shaft 611 is sleeved and rotatably mounted on the mounting rod 613, so that the two air guide wheels 61 are slidably and rotatably mounted on the air guide seat 6.

[0045] like Figure 3 and Figure 5As shown, the moving assembly includes an eccentric cam 62 and an elastic member 63. The eccentric cam 62 is rotatably mounted on the bottom of the air guide seat 6. The edge of the eccentric cam 62 abuts against the slider 64. The edge of the slider 64 is adaptively set to be arc-shaped, so that the eccentric cam 62 indirectly abuts against the air guide wheel 61. The elastic member 63 is specifically a spring. One end of the elastic member 63 is fixedly connected to the end of the air guide seat 6 and the other end is fixedly connected to the slider 64, driving the air guide wheel 61 to move toward the eccentric cam 62 and making the slider 64 abut against the eccentric cam 62. When the eccentric cam 62 rotates, since the distance between the edge of the eccentric cam 62 and the rotating shaft is inconsistent, the air guide wheel 61 is driven to move, and the synchronization of the movement of the two air guide wheels 61 is achieved, that is, when one air guide wheel 61 approaches the pipe on one side of the three-way pipe 11, the other air guide wheel 61 is away from the pipe on the other side of the three-way pipe 11.

[0046] like Figure 3 and Figure 6 As shown, after the exhaust gas enters the three-way pipe 11, the wind guide wheel 61 is blown to rotate. The wind guide wheel 61 itself acts as an obstacle, and the rotation of the wind guide wheel 61 will disturb the continuous flow of the airflow. Moving the wind guide wheel 61 can adjust the influence of the wind guide wheel 61 on different channels in the three-way pipe 11, thereby adjusting the flow rate of the exhaust gas that finally flows into the primary spray tower 2 and the multi-stage spray tower 3. When the positions of the two wind guide wheels 61 in the three-way pipe 11 are asymmetrical, a channel that is easier for the exhaust gas to pass through will be reserved to enter the primary spray tower 2 or the multi-stage spray tower 3, thereby realizing the flow control of the exhaust gas entering the primary spray tower 2 and the multi-stage spray tower 3. For example, if the exhaust gas is easier to flow into the three-way pipe 11 pipeline connected to the multi-stage spray tower 3, the exhaust gas entering the multi-stage spray tower 3 can be increased and the exhaust gas entering the primary spray tower 2 can be reduced. Since the multi-stage spray tower 3 has a better effect of cooling the exhaust gas, it can be applied to the scene where the exhaust gas temperature is high and difficult to cool.

[0047] The included angle of the moving paths of the two wind guide wheels 61 is 120°~140°, that is, the wind guide seat 6 is similar to a V-shaped structure, and the moving path of the wind guide wheel 61 is inclined to the extension direction of the pipeline of the tee pipe 11, so that the two wind guide wheels 61 will not be parallel and directly hinder the flow of exhaust gas, so that the wind guide wheel 61 can better affect the flow of exhaust gas under a small position change, and the exhaust gas purification process can be adjusted more conveniently. The cross-sectional area of ​​the wind guide wheel 61 accounts for 40%~50% of the cross-sectional area of ​​the pipeline of the tee pipe 11. The cross-sectional area of ​​the wind guide wheel 61 is the circumferential area of ​​the edge of the blade 612, and the cross-sectional area of ​​the pipeline of the tee pipe 11 is the radial cross-sectional area of ​​the tee pipe 11, which can guide the direction of the exhaust gas while ensuring the smooth passage of the exhaust gas.

[0048] like Figure 3 and Figure 7As shown, the moving assembly also includes a rotating shaft 71 and an electric drive component 7. The rotating shaft 71 can be rotatably installed on the air guide seat 6 and the three-way pipe 11. The electric drive component 7 is specifically a motor, which is used to drive the rotating shaft 71 to rotate. The electric drive component 7 is installed on the outer wall of the three-way pipe 11. The rotating shaft 71 is fixedly connected to the rotating shaft of the eccentric cam 62, thereby realizing the rotation of the electrically driven eccentric cam 62, and the control is more convenient.

[0049] A protective plate 8 is fixedly connected to the top middle position of the air guide seat 6, and the protective plate 8 covers the top of the eccentric cam 62. The air guide seat 6 is equipped with a folding protective cover 81, which is specifically a flexible accordion-type protective cover. The mounting rod 613 passes through the middle of the folding protective cover 81 and is fixed. The air guide wheel 61 is located above the folding protective cover 81. The folding protective cover 81 folds and moves with the movement of the air guide wheel 61, thereby protecting the internal structure of the air guide seat 6 without affecting the movement of the air guide wheel 61.

[0050] like Figure 1 and Figure 3 As shown, the intake pipe 1 is provided with a first temperature sensor at a position before the exhaust gas passes through the cooling mechanism, the intake pipe 1 is provided with a second temperature sensor at a position after the exhaust gas passes through the cooling mechanism, and the connecting pipe between the primary spray tower 2 and the adsorption filter 21 is provided with a third temperature sensor. The exhaust gas temperature is obtained, and when the exhaust gas temperature is high, more exhaust gas can be directed to the multi-stage spray tower 3 to take advantage of the fast cooling speed of the multi-stage spray tower 3, and when the exhaust gas temperature is low, more exhaust gas can be directed to the primary spray tower 2 to reduce the loss and operating cost of the multi-stage spray tower 3.

[0051] In addition, the temperature of the exhaust gas during the treatment process is not only related to the initial temperature of the exhaust gas, but also related to factors such as the exhaust gas concentration. Therefore, by combining the temperature change data obtained by the first temperature sensor, the second temperature sensor and the third temperature sensor, the degree of cooling of the exhaust gas by the cooling mechanism and the first-stage spray tower 2 can be known to judge the difficulty of cooling the exhaust gas, and the position of the guide wheel 61 in the three-way pipe 11 can be adjusted accordingly to more accurately adjust the amount of exhaust gas entering the first-stage spray tower 2 and the multi-stage spray tower 3 to improve the comprehensive purification effect.

[0052] The implementation principle of the tail gas treatment equipment for red yeast rice production in the present application embodiment is as follows: The exhaust gas reaches the exhaust gas treatment equipment through the air intake pipe 1, and is affected by the guide wheel 61 at the three-way pipe 11 to produce different flow trends, and flows into the primary spray tower 2 and the multi-stage spray tower 3 at the same time. After leaving the multi-stage spray tower 3, the exhaust gas reaches the fan 4. After leaving the primary spray tower 2, the exhaust gas passes through the adsorption filter 21 and reaches the fan 4. Finally, the exhaust gas is collected and discharged from the exhaust pipe 5.

[0053] This specific implementation manner is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the specific implementation manner as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A tail gas treatment device for red yeast rice production, characterized in that: It comprises an air intake pipe (1) and an exhaust pipe (5), and: A first-stage spray tower (2), the first-stage spray tower (2) being in communication with the air inlet pipe (1); An adsorption filter (21), the adsorption filter (21) being in communication with the primary spray tower (2); A multi-stage spray tower (3), wherein the multi-stage spray tower (3) is connected to the air inlet pipe (1); A fan (4), the fan (4) is connected to the adsorption filter (21) and the multi-stage spray tower (3), and the exhaust pipe (5) is connected to the fan (4).

2. The tail gas treatment equipment for red yeast rice production according to claim 1, characterized in that: It also includes a cooling mechanism, which is connected to the air intake pipe (1).

3. The tail gas treatment equipment for red yeast rice production according to claim 2, characterized in that: The intake pipe (1) is provided with a first temperature sensor at a position before the exhaust gas passes through the cooling mechanism, the intake pipe (1) is provided with a second temperature sensor at a position after the exhaust gas passes through the cooling mechanism, and the connecting pipe between the first-stage spray tower (2) and the adsorption filter (21) is provided with a third temperature sensor.

4. The tail gas treatment equipment for red yeast rice production according to claim 1, characterized in that: A three-way pipe (11) is connected between the air inlet pipe (1) and the first-stage spray tower (2) and the multi-stage spray tower (3); an air guide fan (4) is arranged inside the three-way pipe (11); and the exhaust gas flows toward the first-stage spray tower (2) and the multi-stage spray tower (3) after passing through the air guide fan (4).

5. The tail gas treatment equipment for red yeast rice production according to claim 4, characterized in that: The air guide mechanism (4) comprises an air guide seat (6), an air guide wheel (61) and a moving assembly. The air guide seat (6) is fixedly connected between the belly and the shoulder of the three-way pipe (11). Two air guide wheels (61) are provided. Both of the air guide wheels (61) are slidably and rotatably mounted on the air guide seat (6). The two air guide wheels (61) are respectively close to the first-stage spray tower (2) and the multi-stage spray tower (3). The moving assembly is used to move the air guide wheels (61).

6. The tail gas treatment equipment for red yeast rice production according to claim 5, characterized in that: In the three-way pipe (11), the angle between the extension direction of the pipe connecting the first-stage spray tower (2) and the extension direction of the pipe connecting the multi-stage spray tower (3) is 180°, the angle between the moving paths of the two air guide wheels (61) is 130° to 150°, and the cross-sectional area of ​​the air guide wheel (61) accounts for 40% to 50% of the cross-sectional area of ​​the pipe of the three-way pipe (11).

7. The tail gas treatment equipment for red yeast rice production according to claim 5, characterized in that: The moving assembly comprises an eccentric cam (62) and an elastic member (63); the eccentric cam (62) is rotatably mounted on the air guide seat (6) and abuts against the air guide wheel (61); the elastic member (63) is fixedly connected to the air guide seat (6); and the elastic force of the elastic member (63) drives the air guide wheel (61) to move toward the eccentric cam (62).

8. The tail gas treatment equipment for red yeast rice production according to claim 7, characterized in that: The moving assembly further comprises a rotating shaft (71) and an electric drive member (7); the rotating shaft (71) is rotatably mounted on the air guide seat (6) and the three-way pipe (11); the electric drive member (7) is used to drive the rotating shaft (71) to rotate; the rotating shaft (71) is fixedly connected to the rotating shaft of the eccentric cam (62).

9. The tail gas treatment equipment for red yeast rice production according to claim 5, characterized in that: The air guide seat (6) is provided with a folding protective cover (81).

10. The tail gas treatment equipment for red yeast rice production according to claim 1, characterized in that: The adsorption filter (21) is an activated carbon filter box.

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