Tail gas absorption device used in process of preparing acid from pyrite

Abstract

The invention discloses a tail gas absorption device used in the process of preparing acid from pyrite, belongs to the technical field of tail gas absorption, and provides the following scheme that the tail gas absorption device comprises a tail gas treatment mechanism, a tail gas treatment auxiliary mechanism is arranged in the tail gas treatment mechanism, and the tail gas treatment mechanism comprises a tail gas absorption assembly; a conveying assembly is arranged at the middle upper part of the tail gas absorption assembly in a penetrating manner; a spiral spraying head is arranged in the tail gas absorption assembly; according to the tail gas absorption tank, the sealing plug moves up and down through the reciprocating motion assembly, the sealing plug moves downwards, a spiral blade is matched with a driving rod to drive a rotary drum sealing plate to rotate, a second through hole in the sealing plate is staggered from a first through hole, sealing of the sealing plug is guaranteed, and the sealing plug changes the internal pressure of the tail gas absorption tank; the exhaust is performed only after the first through hole corresponds to the second through hole, so that the retention time of the tail gas can be prolonged, and the treatment operation of the tail gas is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of tail gas absorption, and particularly to a tail gas absorption device used in the process of sulfur pyrite acid making. Background Art

[0002] In the practice of environmental protection engineering and ecological protection engineering construction, for the problem of tail gas treatment generated by the sulfur pyrite acid making process, a systematic solution has been formed: through core technical means such as chemical absorption, physical adsorption (such as using high-efficiency activated carbon as an adsorbent), or catalytic conversion, harmful components such as sulfur dioxide in the tail gas are efficiently removed to ensure that the waste gas emissions fully meet the requirements of environmental protection standards. In the process of tail gas absorption, the performance of the absorption device is crucial. However, traditional tail gas absorption devices have many limitations: firstly, the position of the spray head is fixed, making it difficult to achieve uniform spraying in all directions, resulting in some tail gas not being effectively absorbed and the purification effect being greatly reduced; secondly, the residence time of the tail gas in the equipment is insufficient, and harmful substances are not fully dissolved, affecting the treatment quality; thirdly, the spray pressure is constant and difficult to adjust dynamically, weakening the mixing effect of the tail gas and the absorption liquid. In addition, after long-term use, the nozzles are easily blocked by particulate matter in the tail gas, further reducing the spray efficiency.

[0003] These design defects not only restrict the tail gas treatment efficiency but also increase the equipment maintenance cost, and urgent improvements are needed through technological innovation. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems that traditional tail gas absorption devices are difficult to achieve uniform spraying in all directions, resulting in a greatly reduced purification effect; and the residence time of the tail gas in the equipment is insufficient, harmful substances are not fully dissolved, and the spray pressure is constant and difficult to adjust dynamically, weakening the mixing effect of the tail gas and the absorption liquid; in addition, after long-term use, the nozzles are easily blocked by particulate matter in the tail gas, further reducing the spray efficiency, and to propose a tail gas absorption device used in the process of sulfur pyrite acid making.

[0005] In order to achieve the above purpose, the present invention adopts the following technical scheme: A tail gas absorption device used in the process of sulfur pyrite acid making, including a tail gas treatment mechanism, and a tail gas treatment auxiliary mechanism is arranged in the tail gas treatment mechanism; The tail gas treatment mechanism includes a tail gas absorption component, a conveying component penetrates through the upper middle part of the tail gas absorption component, and a spiral spray head is arranged inside the tail gas absorption component; The tail gas treatment auxiliary mechanism includes a reciprocating motion component. Both ends of the lower part of the reciprocating motion component are connected with the same sealing plug. The sealing plug is located in the tail gas absorption component, and a plurality of first through holes are formed in the sealing plug. A sealing component is arranged above the sealing plug, and a rotating cylinder is connected above the sealing component. A plurality of spiral blades are installed outside the rotating cylinder, and the plurality of spiral blades cooperate with the guiding component to drive the rotating cylinder to rotate; The top wall of the rotating cylinder is connected with a torsion component. The bottom end of the torsion component is connected with the middle part of the sealing plug. A piston component is arranged below the sealing plug. The piston component is connected with the conveying component. The bottom end of the piston component is connected with a connecting cylinder. The bottom of the connecting cylinder is communicated with the middle part of the spiral spray head. A spiral groove is formed in the connecting cylinder, and a ball rod is slidably connected in the spiral groove. The ball rod is fixedly connected with the bottom end of the movable rod of the piston component.

[0006] Preferably, the tail gas absorption component includes a tail gas absorption tank. The sealing plug is arranged in the tail gas absorption tank. A tail gas inlet and a tail gas discharge valve are respectively installed on both sides of the tail gas absorption tank. A tail gas outlet is arranged at the top of the tail gas absorption tank, and a packing layer is installed inside the tail gas absorption tank.

[0007] Preferably, the guiding component includes a plurality of fixing rods. The plurality of fixing rods are fixedly connected inside the tail gas absorption tank, and the same annular ring is fixedly connected to one ends of the plurality of fixing rods. A plurality of driving rods are fixedly connected inside the annular ring. The driving rods are arranged in the spiral channels formed by the gaps between the spiral blades.

[0008] Preferably, the reciprocating motion component includes a driving motor. Fixing frames are fixedly connected to both sides of the driving motor. The two fixing frames are fixedly connected to the tail gas absorption tank. The output shaft of the driving motor is fixedly connected with a transmission crankshaft. The transmission crankshaft is rotatably installed in two second bearings. The two second bearings are fixedly installed on the tail gas absorption tank.

[0009] Preferably, two movable frames are arranged on the transmission crankshaft. A guiding sliding rod is fixedly connected below the movable frame. The bottom ends of the two guiding sliding rods are fixedly connected with the sealing plug; A guiding sliding sleeve is arranged on the guiding sliding rod. The guiding sliding sleeve is fixedly connected to a fixing piece. The fixing piece is fixedly connected inside the tail gas absorption tank.

[0010] Preferably, the sealing component includes a sealing plate. The upper part of the sealing plate is fixedly connected with the rotating cylinder. The sealing plate is placed above the sealing plug. Second through holes corresponding to the number of the first through holes are formed in the sealing plate. The first through holes and the second through holes are of the same size.

[0011] Preferably, the torsion assembly includes a fixed disk, a positioning torsion spring is fixedly connected above the fixed disk, one end of the positioning torsion spring is fixedly connected to the top wall of the rotating cylinder, a support shaft is fixedly connected below the fixed disk, the bottom end of the support shaft is fixedly connected to the sealing plug, a third bearing is fixedly installed outside the support shaft, and the sealing plate is rotatably installed on the third bearing.

[0012] Preferably, the piston assembly includes a piston cylinder, a filter is arranged above the piston cylinder, a piston member is arranged inside the piston cylinder, a one-way valve is arranged on the piston member, a connecting rod is fixedly connected above the piston member, the top end of the connecting rod is fixedly connected to the sealing plug, the bottom of the piston member is fixedly connected to the movable rod, the movable rod passes through the conveying pipeline and extends into the connecting cylinder, the connecting cylinder is rotatably installed on the fourth bearing, the fourth bearing is fixedly installed on the conveying pipeline, and the conveying pipeline is communicated with the piston cylinder and the connecting cylinder.

[0013] Preferably, the conveying assembly includes a joint structure, the joint structure penetrates through the tail gas absorption tank and is communicated with the conveying pipe, and the conveying pipe is communicated with the conveying pipeline.

[0014] Preferably, a plurality of nozzles are arranged below the spiral spray head, the spiral spray head is rotatably installed on the first bearing, and the first bearing is fixedly installed in the tail gas absorption tank.

[0015] Compared with the prior art, the present invention provides a tail gas absorption device for the sulfur pyrite acid-making process, and has the following beneficial effects: 1. For the tail gas absorption device in the sulfur pyrite acid-making process, the reciprocating motion assembly is used to realize the up and down movement of the sealing plug. During the downward movement of the sealing plug, the spiral blade and the driving rod can drive the rotating cylinder sealing plate to rotate, so that the second through hole on the sealing plate is staggered from the first through hole, ensuring the sealing of the sealing plug, changing the internal pressure of the tail gas absorption tank by the sealing plug, thereby accelerating the absorption efficiency of the absorption liquid and the tail gas. Moreover, exhaust is only carried out after the first through hole and the second through hole correspond, so as to increase the residence time of the tail gas, facilitate the treatment operation of the tail gas, make the absorption effect of the high-efficiency activated carbon better, and play a very good tail gas absorption effect in the practice of environmental protection projects and ecological protection project construction.

[0016] 2. The tail gas absorption device used in the pyrite acid-making process drives the sealing plug to move up and down through a reciprocating motion component, causing the sealing plug to drive the piston component to move up and down, and the movable rod to drive the ball screw to move up and down. The ball screw can drive the connecting cylinder to rotate through a spiral groove, and the connecting cylinder drives the spiral spray head to rotate. The rotation of the spiral spray head can increase the spraying area of the absorption liquid, and the spiral shape of the spiral spray head can realize the operation of all-round dynamic spraying, enabling the absorption liquid to contact the tail gas evenly. Moreover, the up and down movement of the piston part can pressurize the ejection of the absorption liquid, improving the spraying pressure and effect of the absorption liquid, thereby enhancing the treatment effect of the tail gas. Further pressurization can prevent the problem of nozzle blockage.

[0017] 3. The tail gas absorption device used in the pyrite acid-making process can realize the up and down movement of the sealing plug through a reciprocating motion component. During the downward movement of the sealing plug, the spiral channel formed between the spiral blades can cooperate with the guiding component to realize the rotation of the sealing component, closing the first through hole. At this time, the sealing plug can be pressurized downward, increasing the residence time of the tail gas. Moreover, the sealing plug also drives the piston component to reciprocate, further pressurizing the ejected absorption liquid by the piston component. At the same time, the movable rod drives the ball screw to cooperate with the spiral groove to realize the rotation of the spiral spray head for dynamic spraying. This method can make the tail gas and the absorption liquid fully react by increasing the residence time of the tail gas, and then cooperating with pressurization and dynamic spraying, enabling the harmful substances to be effectively and thoroughly dissolved, thus further making the treatment effect of the tail gas more remarkable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a perspective view of a tail gas absorption device for pyrite acid-making process proposed by the present invention; Figure 2 is a sectional perspective view of a tail gas absorption device for pyrite acid-making process proposed by the present invention; Figure 3 is a sectional perspective view of the tail gas absorption component of a tail gas absorption device for pyrite acid-making process proposed by the present invention; Figure 4 is a perspective view of the connection between the reciprocating motion component and the sealing plug of a tail gas absorption device for pyrite acid-making process proposed by the present invention; Figure 5 is a sectional perspective view of the sealing component of a tail gas absorption device for pyrite acid-making process proposed by the present invention; Figure 6 In the present invention Figure 5 is an enlarged view of part A; Figure 7 is a perspective view of the rotating cylinder of a tail gas absorption device for pyrite acid-making process proposed by the present invention; Figure 8A three-dimensional view of the piston assembly section of an exhaust gas absorption device used in the pyrite acid-making process proposed by the present invention; Figure 9 In the present invention Figure 8 The enlarged view at position B; Figure 10 A three-dimensional view of the spiral spray head of an exhaust gas absorption device used in the pyrite acid-making process proposed by the present invention.

[0019] In the figure: 100, exhaust gas treatment mechanism; 101, exhaust gas absorption assembly; 1011, exhaust gas absorption tank; 1012, packing layer; 1013, exhaust gas discharge valve; 1014, exhaust gas inlet; 1015, exhaust gas outlet; 102, spray head; 103, conveying assembly; 1031, joint structure; 1032, conveying pipe; 104, spiral spray head; 105, first bearing; 200, exhaust gas treatment auxiliary mechanism; 201, reciprocating motion assembly; 2011, driving motor; 2012, fixed frame; 2013, second bearing; 2014, transmission crankshaft; 2015, movable frame; 2016, guiding slide bar; 2017, fixing member; 2018, guiding sliding sleeve; 202, guiding assembly; 2021, fixing rod; 2022, annular ring; 2023, driving rod; 203, sealing assembly; 2031, sealing plate; 2032, second through hole; 204, sealing plug; 205, first through hole; 206, torsion assembly; 2061, fixed disk; 2062, positioning torsion spring; 2063, support shaft; 2064, third bearing; 207, rotating cylinder; 208, piston assembly; 2081, piston cylinder; 2082, filter; 2083, check valve; 2084, piston part; 2085, connecting rod; 2086, movable rod; 2087, conveying pipeline; 209, spiral blade; 210, connecting cylinder; 211, fourth bearing; 212, ball screw; 213, spiral groove. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0021] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0022] Example 1: Refer toFigures 1-7 and Figure 10 , a tail gas absorption device for the pyrite acid-making process, comprising a tail gas treatment mechanism 100, and a tail gas treatment auxiliary mechanism 200 is arranged in the tail gas treatment mechanism 100; The tail gas treatment mechanism 100 includes a tail gas absorption assembly 101. The tail gas absorption assembly 101 includes a tail gas absorption tank 1011. A sealing plug 204 is arranged in the tail gas absorption tank 1011. A tail gas inlet 1014 and a tail gas discharge valve 1013 are respectively installed on both sides of the tail gas absorption tank 1011. The tail gas can be discharged into the tail gas absorption tank 1011 through the tail gas inlet 1014, and the residual liquid can be discharged from the tail gas absorption tank 1011 through the tail gas discharge valve 1013. A tail gas outlet 1015 is arranged at the top of the tail gas absorption tank 1011, and the treated tail gas can be discharged through the tail gas outlet 1015. A packing layer 1012 is installed inside the tail gas absorption tank 1011, and the tail gas can be preliminarily treated through the packing layer 1012. A conveying assembly 103 penetrates through the middle and upper part of the tail gas absorption assembly 101, and a spiral spray head 104 is arranged inside the tail gas absorption assembly 101. A plurality of spray heads 102 are arranged below the spiral spray head 104. The spiral spray head 104 is designed in a spiral shape, so as to cooperate with the rotation to achieve the effect of dynamic spraying of the absorption liquid. At the same time, the spray heads 102 can disperse and spray the absorption liquid, so that the absorption liquid is in uniform contact with the tail gas. The spiral spray head 104 is rotatably installed on a first bearing 105. The spiral spray head 104 can be fixed through the first bearing 105, and at the same time, the spiral spray head 104 can perform a stable rotational motion. The first bearing 105 is fixedly installed in the tail gas absorption tank 1011; The exhaust gas treatment auxiliary mechanism 200 includes a reciprocating motion component 201. The reciprocating motion component 201 includes a driving motor 2011. Both sides of the driving motor 2011 are fixedly connected with fixed frames 2012. The driving motor 2011 can be fixed through the fixed frames 2012 to ensure the stability of the driving motor 2011. The two fixed frames 2012 are fixedly connected to the exhaust gas absorption tank 1011. The output shaft of the driving motor 2011 is fixedly connected with a transmission crankshaft 2014. The transmission crankshaft 2014 is rotatably installed in two second bearings 2013. The second bearings 2013 can assist the transmission crankshaft 2014 to rotate, enabling the transmission crankshaft 2014 to smoothly rotate through the second bearings 2013. The two second bearings 2013 are fixedly installed on the exhaust gas absorption tank 1011. Two movable frames 2015 are arranged on the transmission crankshaft 2014. The transmission crankshaft 2014 has two U-shaped sections, so that the rotation of the transmission crankshaft 2014 can drive the movable frames 2015 to move up and down smoothly. Secondly, the openings on the movable frames 2015 can provide a moving space for the transmission crankshaft 2014, enabling the transmission crankshaft 2014 to maintain smooth rotational movement. A guide slide bar 2016 is fixedly connected below the movable frame 2015. The bottom ends of the two guide slide bars 2016 are fixedly connected with a sealing plug 204. A guide slide sleeve 2018 is arranged on the guide slide bar 2016. The guide slide bar 2016 can be guided through the guide slide sleeve 2018, enabling the guide slide bar 2016 to slide up and down smoothly along the guide slide sleeve 2018, so that the sealing plug 204 moves up and down smoothly. The guide slide sleeve 2018 is fixedly connected to a fixing member 2017. The fixing member 2017 is fixedly connected to the inside of the exhaust gas absorption tank 1011. Both ends of the lower part of the reciprocating motion component 201 are connected with the same sealing plug 204. The sealing plug 204 is kept sealed with the inner wall of the exhaust gas absorption tank 1011, so that the sealing plug 204 can smoothly perform the pressurization operation. The sealing plug 204 is located in the exhaust gas absorption component 101, and a plurality of first through holes 205 are opened on the sealing plug 204. A sealing component 203 is arranged above the sealing plug 204. The sealing component 203 includes a sealing plate 2031. The upper part of the sealing plate 2031 is fixedly connected with a rotating cylinder 207. The sealing plate 2031 is placed on the upper part of the sealing plug 204. A second through hole 2032 corresponding to the number of the first through holes 205 is opened on the sealing plate 2031. The sizes of the first through holes 205 and the second through holes 2032 are the same. When the second through holes 2032 and the first through holes 205 correspond, the treated exhaust gas can be smoothly discharged upward. When the first through holes 205 and the second through holes 2032 are staggered, the sealing plug 204 is kept sealed. The rotating cylinder 207 is connected above the sealing component 203. A plurality of spiral blades 209 are installed outside the rotating cylinder 207. The plurality of spiral blades 209 cooperate with the guiding component 202 to drive the rotating cylinder 207 to rotate. The guiding component 202 includes a plurality of fixing rods 2021. The fixing rods 2021 extend the fixing points, so that the fixing rods 2021 can fix the annular ring 2022.Furthermore, the position of the driving rod 2023 can be fixed. A plurality of fixing rods 2021 are fixedly connected inside the tail gas absorption tank 1011, and one end of each of the plurality of fixing rods 2021 is fixedly connected to the same annular ring 2022. A plurality of driving rods 2023 are fixedly connected inside the annular ring 2022. The driving rods 2023 are located in the spiral channels formed between the spiral blades 209, so that the rotation of the drum 207 can be realized by the cooperation of the spiral blades 209 and the driving rods 2023 during the movement of the spiral blades 209, thereby driving the rotation of the sealing plate 2031. The driving rods 2023 are arranged in the spiral channels formed by the gaps between the spiral blades 209; The top wall of the drum 207 is connected to a torsion assembly 206. The torsion assembly 206 includes a fixing disk 2061. Above the fixing disk 2061, a positioning torsion spring 2062 is fixedly connected. The positioning torsion spring 2062 can undergo torsional deformation, enabling the drum 207 to rotate smoothly. At the same time, when the sealing plug 204 moves downward, the positioning torsion spring 2062 releases torsion synchronously with the rotation of the drum 207. After release, the positioning torsion spring 2062 can maintain the position of the drum 207, avoiding the problem of the offset of the sealing plate 2031. One end of the positioning torsion spring 2062 is fixedly connected to the top wall of the drum 207. Below the fixing disk 2061, a support shaft 2063 is fixedly connected. The bottom end of the support shaft 2063 is fixedly connected to the sealing plug 204. A third bearing 2064 is fixedly installed outside the support shaft 2063. The third bearing 2064 can ensure the smooth rotation of the sealing plate 2031, and further enable the sealing plate 2031 to smoothly switch the state of the second through hole 2032. The sealing plate 2031 is rotatably installed on the third bearing 2064. The bottom end of the torsion assembly 206 is connected to the middle of the sealing plug 204. Below the sealing plug 204, a piston assembly 208 is provided. The piston assembly 208 is connected to the conveying assembly 103. The bottom end of the piston assembly 208 is connected to a connecting cylinder 210.

[0023] In this embodiment: The drive motor 2011 drives the transmission crankshaft 2014 to rotate. The transmission crankshaft 2014 drives the movable frame 2015 to move up and down. The movable frame 2015 drives the guide slide bar 2016 to move up and down, so that the guide slide bar 2016 drives the sealing plug 204 to move up and down. During the downward movement of the sealing plug 204, the spiral blade 209 cooperates with the drive rod 2023 to drive the sealing plate 2031 of the rotating cylinder 207 to rotate, so that the second through hole 2032 on the sealing plate 2031 is offset from the first through hole 205, ensuring the sealing of the sealing plug 204. The sealing plug 204 changes the pressure inside the tail gas absorption tank 1011, thereby accelerating the absorption efficiency of the absorption liquid and the tail gas. When the sealing plug 204 moves upward, the spiral blade 209 cooperates with the drive rod 2023 again, driving the sealing plate 2031 to rotate, making the second through hole 2032 correspond to the first through hole 205. After the first through hole 205 and the second through hole 2032 correspond, exhaust is carried out. In this way, after the first through hole 205 and the second through hole 2032 are offset, the residence time of the tail gas is increased, facilitating the treatment operation of the tail gas.

[0024] Embodiment 2: Refer to Figure 5 and Figures 8-9 , a tail gas absorption device for the sulfur pyrite acid-making process, including a piston assembly 208. The piston assembly 208 includes a piston cylinder 2081. A filter 2082 is arranged above the piston cylinder 2081. The filter 2082 can filter the gas into the piston cylinder 2081. A piston member 2084 is arranged inside the piston cylinder 2081. A check valve 2083 is arranged on the piston member 2084. The check valve 2083 can maintain unidirectional downward air intake. A connecting rod 2085 is fixedly connected above the piston member 2084. The top end of the connecting rod 2085 is fixedly connected to the sealing plug 204. The bottom of the piston member 2084 is fixedly connected to a movable rod 2086. The movable rod 2086 passes through the conveying pipeline 2087 and extends into the connecting cylinder 210. The connecting cylinder 210 is rotatably installed on the fourth bearing 211. The fourth bearing 211 can assist the connecting cylinder 210 to rotate stably, so that the connecting cylinder 210 can drive the spiral spray head 104 to perform a rotational motion. The fourth bearing 211 is fixedly installed on the conveying pipeline 2087. The conveying pipeline 2087 is communicated with the piston cylinder 2081 and the connecting cylinder 210. The bottom of the connecting cylinder 210 is communicated with the middle of the spiral spray head 104. A spiral groove 213 is formed inside the connecting cylinder 210. A ball rod 212 is slidably connected in the spiral groove 213. Through the up and down movement of the ball rod 212, the ball rod 212 can drive the connecting cylinder 210 to rotate through the arc surface of the spiral groove 213. Furthermore, the connecting cylinder 210 drives the spiral spray head 104 to rotate, enabling the spiral spray head 104 to smoothly achieve the effect of dynamic spraying. The ball rod 212 is fixedly connected to the bottom end of the movable rod 2086 of the piston assembly 208; The reciprocating motion assembly 201 includes a driving motor 2011. Fixed frames 2012 are fixedly connected to both sides of the driving motor 2011. The two fixed frames 2012 are fixedly connected to the tail gas absorption tank 1011. The output shaft of the driving motor 2011 is fixedly connected to a transmission crankshaft 2014. The transmission crankshaft 2014 is rotatably installed in two second bearings 2013. The two second bearings 2013 are fixedly installed on the tail gas absorption tank 1011. Two movable frames 2015 are arranged on the transmission crankshaft 2014. A guiding slide bar 2016 is fixedly connected to the lower part of the movable frame 2015. The bottom ends of the two guiding slide bars 2016 are fixedly connected to the sealing plug 204. The conveying assembly 103 includes a joint structure 1031. The joint structure 1031 penetrates through the tail gas absorption tank 1011 and is communicated with a conveying pipe 1032. The joint structure 1031 can be externally connected to a conveying device, so that the conveying device can convey the absorption liquid. Thus, the absorption liquid can enter the conveying pipeline 2087 through the conveying pipe 1032, facilitating the conveying operation of the absorption liquid. And the conveying pipe 1032 is communicated with the conveying pipeline 2087.

[0025] In this embodiment: The driving motor 2011 drives the transmission crankshaft 2014 to rotate, so that the transmission crankshaft 2014 drives the movable frame 2015 and the guiding slide bar 2016 to move up and down. The guiding slide bar 2016 can drive the sealing plug 204 to move up and down, so that the sealing plug 204 drives the connecting rod 2085 to move up and down. The connecting rod 2085 drives the piston member 2084 to move up and down. The piston member 2084 drives the movable rod 2086 to move up and down, so that the movable rod 2086 drives the ball screw rod 212 to move up and down. The ball screw rod 212 can drive the connecting cylinder 210 to rotate through the spiral groove 213. The connecting cylinder 210 drives the spiral spray head 104 to rotate. The rotation of the spiral spray head 104 can increase the spraying area of the absorption liquid. And in cooperation with the spiral shape of the spiral spray head 104, the operation of all-round dynamic spraying can be realized, so that the absorption liquid is in uniform contact with the tail gas. Moreover, during the up and down movement of the piston member 2084, the absorption liquid can be pressurized and sprayed out, improving the spraying pressure and effect of the absorption liquid, thereby improving the treatment effect of the tail gas. And further pressurization can prevent the problem of blockage of the spray head 102.

[0026] Example 3: Refer to Figures 2-4 and Figures 6-7 A tail gas absorption device for the sulfuric acid production process from pyrite includes a tail gas treatment mechanism 100. The tail gas treatment mechanism 100 includes a tail gas absorption assembly 101. A conveying assembly 103 penetrates through the upper middle part of the tail gas absorption assembly 101. And a spiral spray head 104 is arranged inside the tail gas absorption assembly 101. The exhaust gas treatment auxiliary mechanism 200 includes a reciprocating motion component 201. At both lower ends of the reciprocating motion component 201, the same sealing plug 204 is connected. The sealing plug 204 is located in the exhaust gas absorption component 101, and a plurality of first through holes 205 are formed in the sealing plug 204. Above the sealing plug 204, a sealing component 203 is provided. Above the sealing component 203, a rotating cylinder 207 is connected. A plurality of spiral blades 209 are installed outside the rotating cylinder 207. The plurality of spiral blades 209 cooperate with the guiding component 202 to drive the rotating cylinder 207 to rotate; The top wall of the rotating cylinder 207 is connected to a torsion component 206. The bottom end of the torsion component 206 is connected to the middle of the sealing plug 204. Below the sealing plug 204, a piston component 208 is provided. The piston component 208 is connected to the conveying component 103. The bottom end of the piston component 208 is connected to a connecting cylinder 210. The bottom of the connecting cylinder 210 communicates with the middle of the spiral spray head 104. A spiral groove 213 is formed in the connecting cylinder 210. A ball screw 212 is slidably connected in the spiral groove 213. The ball screw 212 is fixedly connected to the bottom end of the movable rod 2086 of the piston component 208.

[0027] In this embodiment: The reciprocating motion component 201 can be used to realize the up and down movement of the sealing plug 204. During the downward movement of the sealing plug 204, the spiral channels formed between the spiral blades 209 can cooperate with the guiding component 202 to realize the rotation of the sealing component 203, so that the sealing component 203 closes the first through holes 205. At this time, the sealing plug 204 can be pressurized downward, and at the same time, the residence time of the exhaust gas is increased. Moreover, the sealing plug 204 also drives the piston component 208 to reciprocate, so that the piston component 208 further pressurizes the sprayed absorption liquid. At the same time, the movable rod 2086 drives the ball screw 212 to cooperate with the spiral groove 213 to realize the rotation of the spiral spray head 104 for dynamic spraying. This method can make the exhaust gas and the absorption liquid fully fuse and react by increasing the residence time of the exhaust gas, and then cooperating with pressurization and dynamic spraying, so that harmful substances can be effectively and thoroughly dissolved, thereby further making the treatment effect of the exhaust gas more remarkable.

[0028] Working principle: When treating the tail gas, the tail gas is transported into the tail gas absorption tank 1011 through the tail gas inlet 1014, and then the driving motor 2011 drives the transmission crankshaft 2014 to rotate, and the transmission crankshaft 2014 drives the movable frame 2015 to move up and down, and the movable frame 2015 drives the guide slide bar 2016 to move up and down, and the guide slide bar 2016 drives the sealing plug 204 to move up and down. When the sealing plug 204 moves downward, the rotating drum 207 follows the downward movement, and at the same time, the spiral The spiral path formed between the leaves 209 can cooperate with the guide rod to drive the rotating drum 207 to rotate, so that the rotating drum 207 drives the sealing plate 2031 to rotate, and the sealing plate 2031 drives the second through hole 2032 to stagger with the first through hole 205, so that the sealing plug 204 is sealed. At this time, the sealing plug 204 moves downward to increase pressure. When the sealing plug 204 moves upward, the sealing plate 2031 can drive the second through hole 2032 to correspond to the first through hole 205, so that the sealing plug 204 moves up and down to perform reciprocating pressure increase. The sealing plug 204 moves up and down, so that the connecting rod 2085 drives the piston 2084 to move up and down. The piston 2084 moves downward to pressurize the absorption liquid. The piston 2084 moves upward, and the one-way valve 2083 opens the air intake, so that the piston 2084 moves up and down to reciprocate and pressurize the absorption liquid to spray out. The absorption liquid can be transported by connecting the external transport equipment through the joint structure 1031, so that the absorption liquid enters the spiral spray head 104 through the transport pipe 2087 and the connecting tube 210, and is further pressurized and passes through the spray head 1 02 is sprayed out, and at the same time, the piston 2084 can also drive the movable rod 2086 and the ball rod 212 to move up and down. The ball rod 212 drives the connecting tube 210 and the spiral spray head 104 to rotate and spray through the spiral groove 213, so that the exhaust gas is processed by the packing layer 1012 upward, and then the exhaust gas is pressurized and dynamically sprayed by the sealing plug 204, so that the exhaust gas and the absorption liquid are fully fused and reacted. When the first through hole 205 and the second through hole 2032 correspond to each other, the treated micro gas is discharged through the exhaust gas outlet 1015.

[0029] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tail gas absorption device for use in a pyrite acid production process, comprising a tail gas treatment mechanism, characterized in that: An exhaust gas treatment auxiliary mechanism is provided in the exhaust gas treatment mechanism; The tail gas treatment mechanism includes a tail gas absorption component, a conveying component is provided through the middle and upper part of the tail gas absorption component, and a spiral spray head is provided inside the tail gas absorption component; The exhaust gas treatment auxiliary mechanism includes a reciprocating motion component, the lower two ends of the reciprocating motion component are connected with the same sealing plug, the sealing plug is located in the exhaust gas absorption component, and a plurality of first through holes are opened on the sealing plug, a sealing component is provided above the sealing plug, a rotating drum is connected above the sealing component, a plurality of spiral blades are installed outside the rotating drum, and the plurality of spiral blades cooperate with the guide component to realize driving the rotating drum to rotate; The top wall of the rotating drum is connected to a torsion assembly, the bottom end of the torsion assembly is connected to the middle part of the sealing plug, a piston assembly is arranged below the sealing plug, the piston assembly is connected to the conveying assembly, the bottom end of the piston assembly is connected to a connecting cylinder, the bottom of the connecting cylinder is connected to the middle part of the spiral spray head, a spiral groove is provided in the connecting cylinder, a ball rod is slidably connected in the spiral groove, and the ball rod is fixedly connected to the bottom end of the movable rod of the piston assembly.

2. The tail gas absorption device used in the pyrite acid production process according to claim 1, characterized in that: The tail gas absorption component includes a tail gas absorption tank, a sealing plug is arranged in the tail gas absorption tank, a tail gas inlet and a tail gas discharge valve are respectively installed on both sides of the tail gas absorption tank, a tail gas outlet is arranged on the top of the tail gas absorption tank, and a packing layer is installed inside the tail gas absorption tank.

3. The tail gas absorption device used in the pyrite acid production process according to claim 2, characterized in that: The guide assembly includes multiple fixed rods, which are fixedly connected to the inside of the exhaust gas absorption tank, and one end of the multiple fixed rods is fixedly connected to the same annular ring, and the inside of the annular ring is fixedly connected to multiple driving rods, which are arranged in the spiral path formed by the gaps between the spiral leaves.

4. The tail gas absorption device used in the pyrite acid production process according to claim 2, characterized in that: The reciprocating motion component includes a driving motor, both sides of the driving motor are fixedly connected with fixed frames, the two fixed frames are fixedly connected to the exhaust gas absorption tank, the output shaft of the driving motor is fixedly connected with a transmission crankshaft, the transmission crankshaft is rotatably installed in two second bearings, and the two second bearings are fixedly installed on the exhaust gas absorption tank.

5. The tail gas absorption device used in the pyrite acid production process according to claim 4, characterized in that: Two movable frames are arranged on the transmission crankshaft, and a guide slide bar is fixedly connected to the bottom of the movable frame, and the bottom ends of the two guide slide bars are fixedly connected to the sealing plug; A guide sliding sleeve is arranged on the guide sliding rod, the guide sliding sleeve is fixedly connected to the fixing piece, and the fixing piece is fixedly connected to the inside of the tail gas absorption tank.

6. The tail gas absorption device used in the pyrite acid production process according to claim 1, characterized in that: The sealing assembly includes a sealing plate, the upper part of which is fixedly connected to the rotating drum, the sealing plate is placed above the sealing plug, and the sealing plate is provided with second through holes corresponding to the number of the first through holes, and the first through holes are the same in size as the second through holes.

7. The tail gas absorption device used in the pyrite acid production process according to claim 6, characterized in that: The torsion assembly includes a fixed plate, a positioning torsion spring is fixedly connected to the top of the fixed plate, one end of the positioning torsion spring is fixedly connected to the top wall of the rotating drum, a support shaft is fixedly connected to the bottom of the fixed plate, the bottom end of the support shaft is fixedly connected to the sealing plug, a third bearing is fixedly installed outside the support shaft, and the sealing plate is rotatably installed on the third bearing.

8. The tail gas absorption device used in the pyrite acid production process according to claim 2, characterized in that: The piston assembly includes a piston cylinder, a filter is arranged above the piston cylinder, a piston member is arranged inside the piston cylinder, a one-way valve is arranged on the piston member, a connecting rod is fixedly connected to the top of the piston member, the top of the connecting rod is fixedly connected to the sealing plug, the bottom of the piston member is fixedly connected to the movable rod, the movable rod passes through the conveying pipe and extends into the connecting cylinder, the connecting cylinder is rotatably mounted on the fourth bearing, the fourth bearing is fixedly mounted on the conveying pipe, and the conveying pipe is connected to the piston cylinder and the connecting cylinder.

9. The tail gas absorption device used in the process of producing acid from pyrite according to claim 8, characterized in that: The conveying assembly comprises a joint structure, which passes through the tail gas absorption tank and is connected with the conveying pipe, and the conveying pipe is connected with the conveying pipeline.

10. The tail gas absorption device used in the pyrite acid production process according to claim 2, characterized in that: A plurality of spray heads are arranged below the spiral spray head. The spiral spray head is rotatably mounted on a first bearing, and the first bearing is fixedly mounted in the tail gas absorption tank.

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