Flue gas purification device for butadiene rubber processing

Abstract

The invention discloses a flue gas purification device for butadiene rubber processing, and relates to the technical field of flue gas purification, the flue gas purification device comprises a filter box and a purification box, the filter box is fixedly connected to the top of the purification box, the bottom of the filter box communicates with the top of the purification box, and the two sides of the outer wall of the filter box are correspondingly connected with a flue gas inlet pipe and a flue gas exhaust pipe respectively; two sets of fixing frames are fixedly and symmetrically arranged in the filter box, each set of fixing frames comprises two fixing frames, a coarse filter screen and a fine filter screen are inserted between the two opposite sets of fixing frames, cleaning mechanisms are arranged on the two sides of the outer wall of the coarse filter screen and the two sides of the outer wall of the fine filter screen, and a spraying mechanism used for spraying smoke is installed on the inner bottom wall of the filter box. Through cooperation of the cleaning mechanism and the spraying mechanism, flue gas can be sprayed and purified when filtered, and impurities and particles attached to the coarse filter screen or the fine filter screen are brushed away, so that the flue gas purification effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flue gas purification, in particular to a flue gas purification device for butadiene rubber processing. BACKGROUND

[0002] Butadiene rubber is the short name of cis-1,4-polybutadiene rubber, its molecular formula is (C4H6)n, and it belongs to a mixture. It is a synthetic rubber with regular structure obtained by polymerization of butadiene. Compared with natural rubber and styrene-butadiene rubber, the cold resistance, wear resistance and elasticity of vulcanized butadiene rubber are particularly excellent, the heat generation under dynamic load is less, the aging resistance is good, and it is easy to be used with natural rubber, chloroprene rubber or nitrile rubber.

[0003] In the production process of butadiene rubber, the drying of butadiene rubber is an important link. The use of hot air ensures that the butadiene rubber remains dry. A large amount of waste gas is generated in this process, which contains a large amount of rubber particles, volatile organic compounds (vocs) and other harmful substances, which pose a threat to the environment and human health and are prohibited from being directly discharged. Therefore, the existing butadiene rubber drying waste gas needs to be treated by a waste gas treatment device before being discharged.

[0004] In view of the above problems, a flue gas purification device for butadiene rubber processing is provided. SUMMARY

[0005] The purpose of the present application is to provide a flue gas purification device for butadiene rubber processing to solve the above problems.

[0006] To solve the above technical problems, the present application specifically provides the following technical scheme: A flue gas purification device for butadiene rubber processing, comprising a filter box and a purification box, the filter box is fixedly connected to the top of the purification box, and the bottom of the filter box is in communication with the top of the purification box, the outer wall of the filter box is respectively connected with an inlet pipe and an exhaust pipe on both sides, two groups of fixing frames are fixedly arranged in the filter box, each group of fixing frames is provided with two, a coarse filter screen and a fine filter screen are respectively inserted between the two groups of fixing frames, two shafts are rotatably connected to the inner sides of the filter box, and the two shafts respectively penetrate the two fixing frames on one side thereof, cleaning mechanisms are arranged on the outer walls of the coarse filter screen and the fine filter screen, and the two ends of all the cleaning mechanisms are fixedly connected with the two shafts, a spraying mechanism for spraying flue gas is installed on the inner bottom wall of the filter box, and the spraying mechanism is located between the coarse filter screen and the fine filter screen.

[0007] As a preferred scheme of the present application, all the cleaning mechanisms comprise two oppositely arranged cleaning assemblies, the two cleaning assemblies are identical in structure, and one side of each of the two cleaning assemblies abuts against the coarse filter screen or the fine filter screen, the cleaning assembly comprises a rotating plate, an extension rod, an abutting head and a plurality of cleaning brushes, one end of the rotating plate is fixedly sleeved on a rotating shaft adjacent to the rotating plate, the other end of the rotating plate is provided with a sliding slot, the extension rod is slidingly arranged in the sliding slot, and the extension rod extends to the outside of the rotating plate after penetrating through the sliding slot, the abutting head is fixedly arranged at the end of the extension rod, the sliding slot is further provided with an elastic member inside, the elastic member is fixedly connected with the extension rod and the rotating plate at two ends respectively, and the plurality of cleaning brushes are fixedly arranged at one side of the outer wall of the rotating plate, the extension rod and the abutting head respectively, and all the cleaning brushes abut against the coarse filter screen or the fine filter screen.

[0008] As a preferred scheme of the present application, two bottom sealing plates for sealing the bottom of the filter box are hinged at the connection between the filter box and the purification box, and two control mechanisms for controlling the opening and closing of the bottom sealing plates are fixedly connected to the inner wall of the purification box, and the bottom of each of the two control mechanisms abuts against the bottom of each of the two bottom sealing plates.

[0009] As a preferred scheme of the present application, the control mechanism comprises a horizontal plate fixedly arranged on the inner wall of the purification box and two abutting members fixedly arranged on the horizontal plate, the abutting member comprises a fixed cylinder, a sliding block and a ball, the fixed cylinder is fixedly arranged on the horizontal plate, the sliding block is slidingly arranged on the fixed cylinder, and the ball is fixedly arranged at the top end of the sliding block, a spring is movably sleeved outside the sliding block, and the two ends of the spring abut against the ball and the fixed cylinder respectively.

[0010] As a preferred scheme of the present application, an overflow plate and a partition plate are fixedly connected inside the purification box, the length of the partition plate is greater than that of the overflow plate, the overflow plate and the partition plate divide the inside of the purification box into an overflow cavity, a purification cavity and a water storage cavity, the purification cavity is located directly below the filter box, a flow guide plate is arranged at the bottom of the purification cavity, a sewage discharge pipe is connected to the inner wall of the purification cavity near the middle part of the flow guide plate, an installation groove is formed in one side of the partition plate near the flow guide plate, and a filter layer is fixedly connected inside the installation groove.

[0011] As a preferred scheme of the present application, a sewage discharge pipe is arranged on one side of the outer wall of the purification box and communicates with the overflow cavity.

[0012] As a preferred scheme of the present application, the inlet pipe is externally sleeved with a cooling cylinder, the cooling cylinder is fixedly connected with the outer wall of the filter box, a first water pump is installed on one side of the top of the filter box, the input end of the first water pump penetrates through the filter box and extends into the water storage cavity, the output end of the first water pump penetrates through the cooling cylinder and extends into the cooling cylinder, a second water pump is installed on the top of the filter box, the input end of the second water pump penetrates through the cooling cylinder and extends into the cooling cylinder, and the output end of the second water pump penetrates through the filter box and is connected with the spraying mechanism.

[0013] As a preferred scheme of the present application, the cooling cylinder is internally threaded with a spiral blade, the spiral blade is rotationally arranged outside the inlet pipe, one end of the spiral blade is fixedly connected with a circular baffle, the inner edge and the outer edge of the circular baffle are respectively axially sealingly slid with the inlet pipe and the cooling cylinder, the circular baffle is fixedly connected with a transmission gear set on the side away from the spiral blade, and the transmission gear set is in transmission connection with one of the rotating shafts.

[0014] As a preferred scheme of the present application, the spraying mechanism comprises a water collecting tank and a plurality of spray heads, the water collecting tank is fixedly arranged on the inner top wall of the filter box, the plurality of spray heads are installed on the bottom of the water collecting tank and are in communication with the water collecting tank, and the output end of the second water pump penetrates through the filter box and is in communication with the inside of the water collecting tank.

[0015] As a preferred scheme of the present application, the exhaust pipe is internally provided with a fine filter screen, and a water level sensor is installed on the inner wall of the filter box at the side below the exhaust pipe.

[0016] Compared with the prior art, the present application has the following beneficial effects: 1、In the present application, the flue gas enters the filter box through the inlet pipe and is subjected to multiple filtering through the coarse filter screen, the fine filter screen and the fine filter screen in sequence, so as to preliminarily filter the rubber particles, dust, paint and the like in the flue gas, and in the process of filtering the flue gas, the spraying mechanism sprays the flue gas between the coarse filter screen and the fine filter screen, the water mist sprayed by the spraying mechanism can perform dust removal treatment on the fine particles in the flue gas, and the purification effect is further enhanced.

[0017] 2. This invention, by setting up a cleaning mechanism, drives multiple cleaning brushes to rotate. These brushes rotate along the surface of the coarse or fine filter screen and rub against it, thereby removing impurities and particles attached to the screen. The cooperation of the elastic element, telescopic rod, and contact head improves the adaptability of the rotating plate and cleaning brushes. This avoids damage caused by collisions between the contact head and the top wall of the filter box. The telescopic rod's extension length increases the cleaning area of ​​the coarse or fine filter screen. Furthermore, the contact head's contact with the top wall of the filter box causes the telescopic rod to extend and retract within the groove, which in turn drives the cleaning brushes outside the telescopic rod to reciprocate, improving the cleaning effect of the brushes on the coarse or fine filter screen.

[0018] 3. This invention, through the cooperation of the control mechanism and the two bottom sealing plates, can effectively control the discharge of sewage and prevent the purified liquid in the purification tank from flowing back into the filter tank, thus ensuring the purification effect. Furthermore, through the cooperation of water pressure and springs, the opening and closing degree of the bottom sealing plates can be adaptively controlled, thereby achieving flexible response to different water level changes and improving purification efficiency and quality. Attached Figure Description

[0019] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0020] Figure 1 This invention provides a schematic diagram of the overall structure of a flue gas purification device for butadiene rubber processing. Figure 1 ; Figure 2 This invention provides a schematic diagram of the overall structure of a flue gas purification device for butadiene rubber processing. Figure 2 ; Figure 3 This invention provides a front view of the structure of a flue gas purification device for butadiene rubber processing; Figure 4 Provided for the present invention Figure 3 Enlarged view of the structure at point A; Figure 5 A side sectional view of the filter box is provided for this invention; Figure 6 This invention provides a structural schematic diagram of the cleaning mechanism and the coarse filter screen; Figure 7 A top view of the purification chamber is provided for the present invention. Figure 8The schematic view of the connection structure of the bottom sealing plate and the control mechanism is provided for the present application.

[0021] The reference numerals in the drawings represent the following respectively: 1, filter box; 2, purification box; 3, cleaning mechanism; 4, spraying mechanism; 5, bottom sealing plate; 6, control mechanism; 7, cooling cylinder; 8, first water pump; 9, second water pump; 11, smoke inlet pipe; 12, smoke outlet pipe; 13, fixed frame; 14, coarse filter screen; 15, fine filter screen; 16, rotating shaft; 17, fine filter screen; 21, overflow plate; 22, partition plate; 23, overflow cavity; 24, purification cavity; 25, water storage cavity; 26, flow guide plate; 27, filter layer; 28, sewage pipe; 31, rotating plate; 32, telescopic rod; 33, abutting head; 34, cleaning brush; 41, water collecting tank; 42, spray head; 61, horizontal plate; 62, fixed cylinder; 63, sliding block; 64, ball; 65, spring; 91, helical blade; 92, circular baffle; 93, transmission gear set. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0023] As shown in Figure 1 - Figure 8 The present application provides a smoke purification device for cis-butadiene rubber processing, which comprises a filter box 1 and a purification box 2. The filter box 1 is fixedly connected to the top of the purification box 2, and the bottom of the filter box 1 is in communication with the top of the purification box 2. The filter box 1 is provided with a smoke inlet pipe 11 and a smoke outlet pipe 12 on the two sides of the outer wall respectively. Two groups of fixed frames 13 are symmetrically arranged in the filter box 1, and each group of fixed frames 13 is provided with two fixed frames. The coarse filter screen 14 and the fine filter screen 15 are respectively arranged between the two groups of fixed frames 13. Rotating shafts 16 are rotatably connected to the two sides of the filter box 1, and the two rotating shafts 16 respectively penetrate through the two fixed frames 13 on one side. The coarse filter screen 14 and the fine filter screen 15 are provided with cleaning mechanisms 3 on the two sides of the outer wall, and the two ends of all the cleaning mechanisms 3 are fixedly connected to the two rotating shafts 16. The filter box 1 is provided with a spraying mechanism 4 for spraying smoke on the inner bottom wall, and the spraying mechanism 4 is located between the coarse filter screen 14 and the fine filter screen 15.

[0024] The fine filter screen 17 is arranged in the smoke outlet pipe 12, and a water level sensor is arranged on the inner wall of the filter box 1 below the smoke outlet pipe 12.

[0025] In use, the butadiene rubber processing flue gas discharge device is connected to the flue gas inlet pipe 11, flue gas enters the filter box 1 through the flue gas inlet pipe 11, and is filtered in turn through the coarse filter screen 14, the fine filter screen 15 and the fine filter screen 17 for multiple filtering to preliminarily filter rubber particles, dust, paint and the like in the flue gas, and in the process of filtering the flue gas, the flue gas between the coarse filter screen 14 and the fine filter screen 15 is sprayed by the spraying mechanism 4, the water mist sprayed by the spraying mechanism 4 can reduce dust in the flue gas, further enhancing the purification effect. After the flue gas is filtered and sprayed, the clean flue gas is discharged through the flue gas outlet pipe 12 to achieve the purpose of purifying the flue gas.

[0026] In addition, the two cleaning mechanisms 3 are fixedly connected with the two rotating shafts 16, a driving mechanism is installed outside the filter box 1, and the driving mechanism is coaxially fixed with the rotating shaft 16, the cleaning mechanism 3 can be driven by rotating the rotating shaft 16 to clean the coarse filter screen 14 and the fine filter screen 15, avoiding filter screen blockage and ensuring continuous and efficient operation of the device. All cleaning mechanisms 3 include two oppositely arranged cleaning assemblies, the two cleaning assemblies are the same in structure, and one side of each of the two cleaning assemblies abuts against the coarse filter screen 14 or the fine filter screen 15. The cleaning assembly includes a rotating plate 31, an extension rod 32, an abutting head 33 and a plurality of cleaning brushes 34. One end of the rotating plate 31 is fixedly sleeved on the rotating shaft 16 adjacent thereto, the other end of the rotating plate 31 is provided with a sliding slot, the extension rod 32 is slidably arranged in the sliding slot, and the extension rod 32 extends to the outside of the rotating plate 31 after penetrating through the sliding slot. The abutting head 33 is fixedly arranged at the end of the extension rod 32. The sliding slot is further provided with an elastic member, the two ends of the elastic member are fixedly connected with the extension rod 32 and the rotating plate 31 respectively, and the plurality of cleaning brushes 34 are fixedly arranged on one side of the outer wall of the rotating plate 31, the extension rod 32 and the abutting head 33, and all the cleaning brushes 34 abut against the coarse filter screen 14 or the fine filter screen 15.

[0027] When the rotating plate 31 rotates, the rotating plate 31, the telescopic rod 32 and the cleaning brush 34 outside the abutting head 33 rotate, so that the plurality of cleaning brushes 34 rotate along the surface of the coarse filter screen 14 or the fine filter screen 15 and rub against the surface, thereby brushing off the impurities and particulate matter attached to the coarse filter screen 14 and the fine filter screen 15. The telescopic rod 32 can be pushed out of the sliding groove under the elastic force of the elastic member. When the rotating plate 31 rotates to the position where the abutting head 33 at the end thereof abuts against the inner top wall of the filter box 1, the abutting head 33 is pushed to retract the telescopic rod 32 inside the sliding groove and compress the elastic member, thereby shortening the length of the telescopic rod 32 and improving the adaptability of the rotating plate 31 and the cleaning brush 34. This can avoid damage caused by the abutting head 33 colliding with the inner top wall of the filter box 1. In addition, the telescopic length of the telescopic rod 32 can increase the transverse area of the coarse filter screen 14 or the fine filter screen 15 for cleaning. Furthermore, the abutting head 33 and the inner top wall of the filter box 1 abut against each other, so that the telescopic rod 32 moves in the sliding groove, and the abutting head 33 drives the cleaning brush 34 outside the telescopic rod 32 to move back and forth, thereby improving the cleaning effect of the cleaning brush 34 on the coarse filter screen 14 or the fine filter screen 15.

[0028] Similarly, when the abutting head 33 continues to rotate with the rotating plate 31 and moves away from the inner top wall of the filter box 1, the elastic member pushes the telescopic rod 32 to extend out of the sliding groove under the elastic force of the elastic member, so that the abutting head 33 extends out of the rotating plate 31 again. The abutting head 33 and the cleaning brush 34 outside the telescopic rod 32 continue to clean the coarse filter screen 14 or the fine filter screen 15. Through continuous rotation and cleaning, the cleaning mechanism 3 can efficiently keep the filter screen unblocked and ensure the normal operation of the flue gas purification device. Under the action of the cleaning mechanism 3, the residues on the coarse filter screen 14 and the fine filter screen 15 can be effectively scraped off or washed away, thereby avoiding the problem of reduced filtering efficiency caused by blockage.

[0029] Further, when the spraying mechanism 4 sprays water, the water can be sprayed onto the coarse filter screen 14 and the fine filter screen 15 to wash away the residues scraped off, so that the residues fall off the coarse filter screen 14 and the fine filter screen 15. In addition, the spraying of the spraying mechanism 4 can wash the mesh holes of the coarse filter screen 14 and the fine filter screen 15, thereby avoiding the adhesion of dust in the mesh holes.

[0030] It is worth noting that the water level sensor can monitor the water level in the filter box 1 to prevent sewage from entering the smoke exhaust pipe 12 and causing damage to the device.

[0031] Two bottom sealing plates 5 are hinged at the connection between filter box 1 and purification box 2 to seal the bottom of filter box 1. Two control mechanisms 6 are fixedly connected to the inner wall of purification box 2 to control the opening and closing of bottom sealing plates 5. The two control mechanisms 6 respectively abut against the bottom of the two bottom sealing plates 5.

[0032] By using two bottom sealing plates 5, the interior of the filter box 1 can be sealed during flue gas filtration, and, as... Figure 3 As shown, there are gaps between the coarse filter screen 14 and the fine filter screen 15 and the bottom sealing plate 5. When the spraying mechanism 4 sprays the fine filter screen 15 and the coarse filter screen 14, the wastewater falls onto the two bottom sealing plates 5. The presence of wastewater also prevents flue gas from escaping through the gaps. By setting two control mechanisms 6, the opening and closing of the two bottom sealing plates 5 can be controlled. When wastewater accumulates at the bottom of the filter box 1, the mud and impurities in the wastewater can settle on the two bottom sealing plates 5. At this time, the control mechanism 6 controls the rotation angle of the two bottom sealing plates 5 to adjust the opening degree of the gap between the two bottom sealing plates 5, so that the sediment in the wastewater falls into the purification box 2 through the gap between the two bottom sealing plates 5. In this embodiment, the control mechanism 6 can be set as an electric push rod or a hydraulic rod, etc., which can intelligently control the opening degree of the gap between the two bottom sealing plates 5. The design of the two bottom sealing plates 5 can not only effectively prevent flue gas leakage, but also provide convenience when cleaning and discharging wastewater, improving the working efficiency and practicality of the entire flue gas purification device. Equipped with a water level sensor and control mechanism 6, the device's operating status can be monitored in real time, including the filter screen's clogging status, water level, and sediment accumulation. When preset cleaning or discharge conditions are met, the control mechanism 6 automatically activates the cleaning mechanism 3 or adjusts the opening and closing degree of the bottom sealing plate 5 to achieve automated operation and intelligent management, greatly reducing the frequency and difficulty of manual intervention.

[0033] Furthermore, the control mechanism 6 includes a horizontal plate 61 fixed to the inner wall of the purification box 2 and two abutting parts fixed to the horizontal plate 61. The abutting parts include a fixed cylinder 62, a slider 63 and a ball 64. The fixed cylinder 62 is fixedly mounted on the horizontal plate 61, the slider 63 is slidably mounted on the fixed cylinder 62, the ball 64 is fixed to the top of the slider 63, and a spring 65 is movably sleeved on the outside of the slider 63. The two ends of the spring 65 abut against the ball 64 and the fixed cylinder 62 respectively.

[0034] In the initial state, the elastic force of the spring 65 can push the ball 64 to drive the slider 63 at the bottom of the ball 64 to extend from the inside of the fixed cylinder 62, so that the ball 64 abuts against the bottom sealing plate 5, so that the two bottom sealing plates 5 close the bottom of the filter box 1. When the sewage is accumulated at the bottom of the filter box 1, the gravity of the water can make the bottom sealing plate 5 rotate, so that the gap between the two bottom sealing plates 5 is opened, allowing the sewage to flow into the purification tank 2. After the sewage is completely discharged, the ball 64 will abut against the bottom sealing plate 5 under the action of the elastic force of the spring 65, so that the bottom sealing plate 5 is reset, realizing the re-closing of the bottom of the filter box 1. This design not only effectively controls the discharge of sewage, but also avoids the backflow of the purification liquid in the purification tank 2 to the filter box 1, ensuring the purification effect. In addition, through the cooperation of water pressure and the spring 65, the opening degree of the bottom sealing plate 5 can be adaptively controlled, so as to realize flexible response to different water level changes, improve the purification efficiency and purification quality.

[0035] The overflow plate 21 and the partition plate 22 are fixedly connected inside the purification tank 2, and the length of the partition plate 22 is greater than that of the overflow plate 21. The overflow plate 21 and the partition plate 22 divide the inside of the purification tank 2 into an overflow chamber 23, a purification chamber 24 and a water storage chamber 25. The purification chamber 24 is located directly below the filter box 1. The bottom of the purification chamber 24 is provided with a flow guide plate 26. A sewage discharge pipe is connected to the inside of the purification tank 2 near the middle of the flow guide plate 26. An installation groove is formed in one side of the partition plate 22 near the flow guide plate 26. A filter layer 27 is fixedly connected inside the installation groove.

[0036] A sewage discharge pipe 28 is arranged on one side of the outer wall of the purification tank 2 and communicates with the overflow chamber 23.

[0037] When the sewage flows from the filter box 1 into the purification tank 2, it first enters the purification chamber 24. When the sewage is deposited, it will be stratified. The mud and impurities in the sewage will be deposited at the bottom of the water. The oil stains or floating objects will float on the water surface. At this time, through the arrangement of the flow guide plate 26, the deposited mud or impurities can be discharged from the sewage discharge pipe at regular intervals. When the water level of the sewage is higher than the overflow plate 21, the oil stains and floating objects on the water surface will overflow into the overflow chamber 23. Through the arrangement of the sewage discharge pipe 28, the oil stains and floating objects in the overflow chamber 23 can be discharged in time, ensuring the continuous and efficient progress of the purification process. The water in the purification chamber 24 after preliminary deposition and overflow treatment will be further filtered by the filter layer 27 on the partition plate 22 for deep filtration. Through the further filtration treatment of the filter layer 27, the suspended solids and other small impurities in the sewage can be removed. The purified water flows into the water storage chamber 25 for recycling. The design of the partition plate 22 and the overflow plate 21 not only realizes the reasonable distribution of the internal space of the purification tank 2, but also ensures the orderly flow and purification of the sewage in the purification process, so as to adapt to different purification requirements and improve the purification efficiency.

[0038] The cooling cylinder 7 is externally sleeved with the smoke inlet pipe 11, and is fixedly connected with the outer wall of the filter box 1. The first water pump 8 is installed on one side of the top of the purification box 2. The input end of the first water pump 8 penetrates through the purification box 2 and extends into the water storage cavity 25. The output end of the first water pump 8 penetrates through the cooling cylinder 7 and extends into the cooling cylinder 7. The second water pump 9 is installed on the top of the filter box 1. The input end of the second water pump 9 penetrates through the cooling cylinder 7 and extends into the cooling cylinder 7. The output end of the second water pump 9 penetrates through the filter box 1 and is connected with the spraying mechanism 4.

[0039] The spiral blade 91 is threadedly arranged in the cooling cylinder 7 and rotationally arranged outside the smoke inlet pipe 11. The one end of the spiral blade 91 is fixedly connected with the circular baffle 92. The inner edge and the outer edge of the circular baffle 92 are respectively axially sealingly and slidably connected with the smoke inlet pipe 11 and the cooling cylinder 7. The circular baffle 92 is fixedly connected with the transmission gear set 93 on the side away from the spiral blade 91. The transmission gear set 93 is in transmission connection with one of the rotating shafts 16.

[0040] The first water pump 8 is used to convey the water in the water storage cavity 25 into the cooling cylinder 7, so as to preliminarily cool the passing flue gas, reduce the energy consumption in the subsequent purification process, and prolong the service life of the equipment. In order to reduce the temperature of the filtered water in the water storage cavity 25, a cooling device can be further arranged in the water storage cavity 25. The water in the water storage cavity 25 is pumped out by the first water pump 8 and injected into the cooling cylinder 7. The circulating flow of the water further takes away the heat of the outer wall of the smoke inlet pipe 11 and cools the flue gas in the smoke inlet pipe 11. The second water pump 9 pumps out the cooling water in the cooling cylinder 7 and uniformly sprays the cooling water into the filter box 1 through the spraying mechanism 4. The cooling water is in full contact with the flue gas, which not only further reduces the temperature of the flue gas, but also helps to capture part of the harmful substances in the flue gas and improves the purification effect. This design ingeniously utilizes the circulation of water resources, realizes cooling and enhances the purification function, and reflects the environmental protection and high efficiency of the device.

[0041] When the filtered water enters into the cooling cylinder 7, the circular baffle 92 is driven to rotate by the transmission assembly, so as to drive the spiral blade 91 to rotate along the outside of the smoke inlet pipe 11. The filtered water in the cooling cylinder 7 is conveyed by the rotation of the spiral blade 91, so as to increase the residence time of the flue gas in the cooling cylinder 7 and promote the heat exchange between the flue gas and the cooling water in the cooling cylinder 7, thereby effectively reducing the temperature of the flue gas.

[0042] In the application, the first water pump 8 pumps the cooling water in the water storage cavity 25 to the inside of the cooling cylinder 7 to initially cool the entering flue gas. The cooled water is then delivered to the spraying mechanism 4 by the second water pump 9. The spraying mechanism 4 comprises a water collecting tank 41 fixedly arranged on the top wall of the filter box 1 and a plurality of spray heads 42 installed on the bottom of the water collecting tank 41 and communicated with the water collecting tank 41. The output end of the second water pump 9 is communicated with the inside of the water collecting tank 41 after penetrating through the filter box 1. The spray heads 42 uniformly spray water into the inside of the filter box 1 to form water mist, the water mist fully contacts with the flue gas to further reduce the temperature of the flue gas, and the water mist can also adsorb the tiny particulate matters and part of harmful substances in the flue gas, so that the water circulation effect is realized and the resource utilization rate is improved.

[0043] The scope of protection of the application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the application within the spirit and protection scope of the application, and such modifications or equivalent replacements shall also be considered to fall within the protection scope of the application.

Claims

1. A flue gas purification device for butadiene rubber processing, comprising a filter box (1) and a purification box (2), wherein the filter box (1) is fixedly connected to the top of the purification box (2), and the bottom of the filter box (1) is connected to the top of the purification box (2), characterized in that, The filter box (1) has an inlet pipe (11) and an outlet pipe (12) connected to the outer walls of the filter box (1) respectively. The filter box (1) has two sets of fixed frames (13) fixedly and symmetrically arranged inside. Each set of fixed frames (13) has two frames. A coarse filter screen (14) and a fine filter screen (15) are inserted between the two sets of fixed frames (13) respectively. The filter box (1) has a rotating shaft (16) rotatably connected to both sides of the filter box (1), and the two rotating shafts (16) pass through the two fixed frames (13) on one side respectively. The outer walls of the coarse filter screen (14) and the fine filter screen (15) are provided with cleaning mechanisms (3), and the two ends of all the cleaning mechanisms (3) are fixedly connected to the two rotating shafts (16) respectively. The filter box (1) has a spraying mechanism (4) for spraying the flue gas installed on the inner bottom wall. The spraying mechanism (4) is located between the coarse filter screen (14) and the fine filter screen (15).

2. The flue gas purification device for butadiene rubber processing according to claim 1, characterized in that: All of the cleaning mechanisms (3) include two cleaning components arranged opposite each other. The two cleaning components have the same structure, and one side of each cleaning component abuts against a coarse filter screen (14) or a fine filter screen (15). Each cleaning component includes a rotating plate (31), a telescopic rod (32), a contact head (33), and multiple cleaning brushes (34). One end of the rotating plate (31) is fixedly sleeved on the adjacent rotating shaft (16), and the other end of the rotating plate (31) is provided with a sliding groove. The telescopic rod (32) is slidably disposed in the sliding groove. Inside, the telescopic rod (32) extends through the slide groove to the outside of the rotating plate (31), the contact head (33) is fixedly installed at the end of the telescopic rod (32), and an elastic element is also provided inside the slide groove. The two ends of the elastic element are fixedly connected to the telescopic rod (32) and the rotating plate (31) respectively. Multiple cleaning brushes (34) are fixedly installed on one side of the outer wall of the rotating plate (31), the telescopic rod (32) and the contact head (33), and all the cleaning brushes (34) are in contact with the coarse filter screen (14) or the fine filter screen (15).

3. The flue gas purification device for butadiene rubber processing according to claim 1, characterized in that: Two bottom sealing plates (5) for sealing the bottom of the filter box (1) are hinged at the connection between the filter box (1) and the purification box (2). Two control mechanisms (6) for controlling the opening and closing of the bottom sealing plates (5) are fixedly connected to the inner wall of the purification box (2). The two control mechanisms (6) respectively abut against the bottom of the two bottom sealing plates (5).

4. The flue gas purification device for butadiene rubber processing according to claim 3, characterized in that: The control mechanism (6) includes a horizontal plate (61) fixed to the inner wall of the purification box (2) and two abutting parts fixed on the horizontal plate (61). The abutting parts include a fixed cylinder (62), a slider (63) and a ball (64). The fixed cylinder (62) is fixedly mounted on the horizontal plate (61). The slider (63) is slidably mounted on the fixed cylinder (62). The ball (64) is fixed to the top of the slider (63). A spring (65) is movably sleeved on the outside of the slider (63). The two ends of the spring (65) abut against the ball (64) and the fixed cylinder (62) respectively.

5. The flue gas purification device for butadiene rubber processing according to claim 3, characterized in that: The purification box (2) is fixedly connected to an overflow plate (21) and a partition plate (22), and the length of the partition plate (22) is greater than that of the overflow plate (21). The overflow plate (21) and the partition plate (22) divide the interior of the purification box (2) into an overflow chamber (23), a purification chamber (24) and a water storage chamber (25). The purification chamber (24) is located directly below the filter box (1). A guide plate (26) is provided at the bottom of the purification chamber (24). A drain pipe is connected to the middle of the guide plate (26) inside the purification box (2). An installation groove is opened on the side of the partition plate (22) near the guide plate (26). A filter layer (27) is fixedly connected inside the installation groove.

6. The flue gas purification device for butadiene rubber processing according to claim 5, characterized in that: The purification box (2) has a drain pipe (28) connected to the overflow chamber (23) on one side of its outer wall.

7. The flue gas purification device for butadiene rubber processing according to claim 5, characterized in that: The outside of the flue gas inlet pipe (11) is fitted with a cooling cylinder (7), which is fixedly connected to the outer wall of the filter box (1). A first water pump (8) is installed on one side of the top of the purification box (2). The input end of the first water pump (8) passes through the purification box (2) and extends into the water storage chamber (25). The output end of the first water pump (8) passes through the cooling cylinder (7) and extends into the cooling cylinder (7). A second water pump (9) is installed on the top of the filter box (1). The input end of the second water pump (9) passes through the cooling cylinder (7) and extends into the cooling cylinder (7). The output end of the second water pump (9) passes through the filter box (1) and is connected to the spray mechanism (4).

8. The flue gas purification device for butadiene rubber processing according to claim 7, characterized in that: The cooling cylinder (7) has a spiral blade (91) inside its thread. The spiral blade (91) is rotatably disposed outside the flue pipe (11). A circular baffle (92) is fixedly connected to one end of the spiral blade (91). The inner and outer edges of the circular baffle (92) are axially sealed and slide against the flue pipe (11) and the cooling cylinder (7), respectively. A transmission gear set (93) is fixedly connected to the outer side of the circular baffle (92) away from the spiral blade (91). The transmission gear set (93) is connected to one of the rotating shafts (16) in a transmission connection.

9. The flue gas purification device for butadiene rubber processing according to claim 7, characterized in that: The spraying mechanism (4) includes a water collection tank (41) and multiple nozzles (42). The water collection tank (41) is fixedly installed on the top wall inside the filter box (1). The multiple nozzles (42) are installed at the bottom of the water collection tank (41) and are connected to the water collection tank (41). The output end of the second water pump (9) passes through the filter box (1) and is connected to the inside of the water collection tank (41).

10. The flue gas purification device for butadiene rubber processing according to claim 7, characterized in that: The exhaust pipe (12) is equipped with a fine filter screen (17), and a water level sensor is installed on the inner wall of the filter box (1) on the side below the exhaust pipe (12).

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