A chemical tail gas purification system and purification method

Abstract

The present invention relates to the technical field of chemical tail gas purification, and discloses a chemical tail gas purification system and a purification method, comprising a box body, the top of the box body is fixedly connected with a purification box, the top of the purification box is fixedly connected with an exhaust pipe, the rear of the box body is fixedly connected with a collecting box, and the top of the box body is fixedly installed with an air pump. When the present invention is used, the waste gas will enter the purifier in the purification box for purification treatment, the purifier will react with some harmful substances in the waste gas and form precipitation, so as to achieve the purification of the waste gas, and at the same time, the filter plate will stir the purifier in the purification box to increase the contact area between the purifier and the waste gas, and the filter plate will also drive the precipitation to be collected in the inner cylinder, so that the spiral blade drives the collected precipitation entering the inner cylinder to move backward and discharge it into the collecting box, so as to prevent the precipitation from accumulating in the purification box and affecting the subsequent purification effect of the waste gas.

Description

Technical Field

[0001] The invention relates to the technical field of chemical tail gas purification, and in particular to a chemical tail gas purification system and a purification method. Background Art

[0002] Chemical tail gas purification refers to the treatment of waste gas generated in the chemical production process to reduce or completely eliminate the emission of harmful gases, particulate matter and other pollutants to protect the environment and human health.

[0003] The patent with the announcement number CN213492892U discloses an exhaust gas purification device, which relates to the field of environmental protection technology, including a box body, wherein the two ends of the box body are respectively provided with an access port and a discharge port, wherein the inside of the box body is provided with a first treatment chamber, a second treatment chamber and a third treatment chamber in sequence along the direction from the access port to the discharge port, wherein the access port is provided on the first treatment chamber, the second treatment chamber is communicated with the first treatment chamber, the third treatment chamber is communicated with the second treatment chamber, and the third treatment chamber is provided with a discharge port, the first treatment chamber, the second treatment chamber and the third treatment chamber are provided in the same box body, and the exhaust gas enters the exhaust gas purification device from the access port, passes through the first treatment chamber, and After treatment and purification in the second treatment chamber and the third treatment chamber, the waste gas is discharged into the atmosphere through the exhaust port. After the waste gas purification device is transported to the site, it is only necessary to connect the waste gas pipe with the access port to complete the installation work. It is convenient, fast, and saves time and effort. However, this device is difficult to remove harmful gases in the waste gas through physical filtering. Even if a chemical spray purification is added, it is still difficult to purify all the waste gas. The purification effect is low, and precipitation will be produced when the chemical contacts and reacts with harmful gases. Over time, it will affect the normal operation of the purification device. Therefore, a chemical tail gas purification system and purification method are proposed to solve the above-mentioned problems. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a chemical tail gas purification system and a purification method in view of the deficiencies in the above-mentioned prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a chemical tail gas purification system, including a box body, the top of the box body is fixedly connected with a purification box, the top of the purification box is fixedly connected with an exhaust pipe, the rear of the box body is fixedly connected with a collection box, the top of the box body is fixedly installed with an air pump, and the inner wall of the purification box is installed with a one-way valve; the front part of the purification box is provided with a stirring device, the inner wall of the purification box is provided with a discharge device, and the inner wall of the box body is provided with a condensing device; the stirring device includes a motor, a sleeve, a feed port, a filter plate, an inner cylinder, a through hole, a transmission rod, a spiral blade and an arc block, The motor is fixedly connected to the front of the purification box, the sleeve is fixedly connected to the output end of the motor, the feed port is opened on the surface of the sleeve, the filter plate is fixedly connected to the surface of the sleeve, the inner cylinder is fixedly connected to the inner wall of the purification box, the through hole is opened on the upper surface of the inner cylinder, the transmission rod is fixedly connected to the inner wall of the sleeve, the spiral blade is fixedly connected to the surface of the transmission rod, and the arc block is fixedly connected to the surface of the filter plate; the input and output ends of the air pump are respectively connected to the box body and the purification box, the side of the filter plate away from the sleeve is in contact with the inner wall of the purification box, and the two ends of the sleeve are rotatably connected to the inner wall of the purification box. The surface of the inner cylinder contacts the inner wall of the sleeve, and the rear end of the transmission rod is rotatably connected to the inner wall of the purification box. The chemical tail gas enters the box through the left side of the box, and the air pump draws out the exhaust gas in the box and passes it into the purification box through the one-way valve. The exhaust gas enters the purifier in the purification box for purification treatment. The purifier reacts with some harmful substances in the exhaust gas and forms precipitation, thereby achieving the purification of the exhaust gas. At this time, the motor starts and drives the sleeve to rotate, and the sleeve drives the filter plate to rotate. The filter plate stirs the purifier in the purification box to increase the contact area between the purifier and the exhaust gas, thereby improving the purification effect of the exhaust gas. The rotation of the filter plate will push the sediment generated between the exhaust gas and the reagent, and when the filter plate rotates to the top, the feed port on the sleeve surface coincides with the through hole on the inner tube surface, and the sediment on the filter plate surface will fall under the action of gravity and pass through the feed port and the through hole into the inner tube, while the inner tube is fixed to the inner wall of the purification box and cannot rotate, and the sleeve drives the transmission rod and the spiral blades on its surface to rotate inside the inner tube, so that the spiral blades and the inner tube rotate relative to each other, allowing the spiral blades to drive the collected sediment entering the inner tube to move backward and discharge into the collection box, thereby preventing the sediment from accumulating in the purification box and affecting the subsequent exhaust gas purification effect.

[0006] Preferably, the discharge device comprises an elastic telescopic rod, a connecting rod and a baffle, the elastic telescopic rod is fixedly connected to the inner wall of the purification box, the connecting rod is fixedly connected to the telescopic end of the elastic telescopic rod, and the baffle is fixedly connected to the circumferential surface of the connecting rod through a connecting rod; the discharge device also comprises an elastic telescopic column, a movable bar, an elastic telescopic plate, a push plate and an arc plate, the elastic telescopic column is fixedly connected to the inner wall of the purification box, the movable bar is fixedly connected to the end of the elastic telescopic column away from the purification box, the elastic telescopic plate is rotatably connected to the inner wall of the baffle through a torsion spring, the push plate is fixedly connected to the surface of the telescopic end of the elastic telescopic plate, and the arc plate is fixedly connected to a side of the elastic telescopic plate close to the push plate; the top of the baffle is slidably connected to the inner wall of the purification box, the surface of the telescopic end of the elastic telescopic column is slidably connected to the inner wall of the right side of the baffle, the surface of the movable bar and the side of the elastic telescopic plate close to the arc plate are in contact with each other, and when the filter plate rotates, it will contact the elastic telescopic rod and push the elastic telescopic rod to retract When the filter plate continues to rotate and passes over the elastic telescopic rod, the elastic telescopic rod will be reset under the action of its own elastic force, and the baffle will be reset together with the elastic telescopic rod and close the exhaust pipe, so that the purified exhaust gas in the purification box can be discharged intermittently, thereby preventing the exhaust gas from being discharged too quickly and causing some exhaust gas to not fully react with the agent. At the same time, when the baffle is on the right side, it will slide on the elastic telescopic column, and the elastic telescopic column will push the moving bar to move to the left on the inner wall of the baffle, and the moving bar will push the arc plate to displace through the arc surface, and the arc plate will drive the elastic telescopic plate to rotate and open, and then the moving bar will continue to move to the left to push the push plate to move, and the push plate will move and stretch the elastic telescopic plate, so that the stretched elastic telescopic plate hits the surface of the filter plate, causing the filter plate to vibrate, and prompting the precipitate filtered on the surface to fall and enter the inner cylinder.

[0007] Preferably, the condensing device comprises a condensing filter plate, a condensing tube, an elastic telescopic strip, a guide block and a limiting rod, the condensing filter plate is fixedly connected to the inner wall of the box, the condensing tube is fixedly connected to the inner wall of the box, the elastic telescopic strip is slidably connected to the inner wall of the top of the box through an elastic member, the guide block is fixedly connected to the top of the elastic telescopic strip, and the limiting rod is fixedly connected to the surface of the elastic telescopic strip; the condensing device also comprises an inclined block, a scraper, a push block and a collecting plate, the scraper is slidably connected to the bottom of the condensing filter plate, the inclined block is fixedly connected to the bottom of the scraper, the push block is fixedly connected to the front and rear sides of the elastic telescopic strip, and the collecting plate is slidably mounted on the bottom wall inside the box; the upper surface of the push block is in contact with the bottom of the inclined block, the surface of the elastic telescopic strip is slidably connected to the inner wall of the condensing filter plate, the surface of the condensing tube is in contact with the upper surface of the condensing filter plate, The arc surface of the guide block is in contact with the arc surface of the arc block, and the circumferential surface of the limit rod is in contact with the upper surface of the condensation filter plate. The temperature of the chemical waste gas is relatively high. When it enters the box, it will contact the condensation filter plate on the condensation tube, condense water droplets on its surface and allow some impurities to condense in the water droplets, thereby achieving preliminary filtration and purification of the waste gas. When the filter plate rotates, it drives the arc block to rotate, and the arc block pushes the guide block downward through the arc surface, and the guide block drives the elastic telescopic strip to move downward, and the elastic telescopic strip drives the limit rod to move downward and hit the top of the condensation filter plate to cause it to vibrate. The vibration will cause the condensed water droplets at the bottom of the condensation filter plate to fall into the collection plate and be collected, thereby improving the condensation effect of subsequent waste gas. At the same time, when the elastic telescopic strip moves downward, it will drive the push block to move, and the push block drives the inclined block to move through the inclined surface, and the inclined block drives the scraper to slide at the bottom of the condensation filter plate and further scrape off the condensed water droplets at the bottom.

[0008] A purification method for a chemical tail gas purification system comprises the following steps:

[0009] Step 1: The chemical tail gas enters the box through the left side of the box. The air pump will extract the waste gas in the box and pass it into the purification box through a one-way valve. The waste gas will enter the purifier in the purification box for purification. The purifier will react with some harmful substances in the waste gas and form precipitation, thereby purifying the waste gas;

[0010] Step 2: The motor starts and drives the sleeve to rotate, and the sleeve drives the filter plate to rotate. The filter plate will stir the purifier in the purification box to increase the contact area between the purifier and the exhaust gas;

[0011] Step 3: The rotation of the filter plate will push the sediment generated between the exhaust gas and the reagent, and when the filter plate rotates to the top, the feed port on the sleeve surface coincides with the through hole on the inner cylinder surface, and the sediment on the filter plate surface will fall under the action of gravity and pass through the feed port and through hole into the inner cylinder;

[0012] Step 4: The inner cylinder is fixed to the inner wall of the purification box and therefore cannot rotate, and the sleeve drives the transmission rod and the spiral blades on its surface to rotate inside the inner cylinder, so that the spiral blades and the inner cylinder rotate relative to each other, allowing the spiral blades to drive the collected sediment entering the inner cylinder to move backward and discharge into the collection box.

[0013] The present invention adopts the above technical solution to bring the following beneficial effects:

[0014] 1. The chemical tail gas purification system and purification method, through the coordinated operation between the box body, the purification box, the exhaust pipe, the collection box, the air pump, the one-way valve, the stirring device, the motor, the sleeve, the feed port, the filter plate, the inner cylinder, the through hole, the transmission rod, the spiral blade, and the arc block, the exhaust gas will enter the purifier in the purification box for purification treatment, the purifier will react with some harmful substances in the exhaust gas and form precipitation, so as to purify the exhaust gas, and at the same time, the filter plate will stir the purifier in the purification box to increase the contact area between the purifier and the exhaust gas, and improve the purification effect of the exhaust gas, and the filter plate will also drive the precipitation to be collected in the inner cylinder, so that the spiral blade drives the collected precipitation entering the inner cylinder to move backward and discharge it into the collection box, so as to prevent the precipitation from accumulating in the purification box and affecting the subsequent purification effect of the exhaust gas.

[0015] 2. The chemical tail gas purification system and purification method, through the coordinated operation of the elastic telescopic rod, the connecting rod, the baffle, the elastic telescopic column, the moving bar, the elastic telescopic plate, the push plate, and the arc plate, enable the filter plate to intermittently push the baffle to move, and allow the baffle to reciprocate and open the exhaust pipe, so that the purified waste gas in the purification box can be discharged intermittently, preventing the waste gas from being discharged too quickly and causing part of the waste gas to not fully react with the reagent. At the same time, the elastic telescopic plate hits the surface of the filter plate, causing the filter plate to vibrate, and causing the precipitate filtered on the surface to fall and enter the inner cylinder.

[0016] 3. The chemical exhaust gas purification system and purification method, through the coordinated operation among the condensation filter plate, condensation tube, elastic telescopic strip, guide block, limit rod, inclined block, scraper, push block and collection tray, the temperature of the chemical waste gas is relatively high, and when it enters the box, it will contact the condensation filter plate on the condensation tube, condense water droplets on its surface and allow some impurities to condense in the water droplets, thereby realizing the preliminary filtration and purification of the waste gas, and when the filter plate rotates, it drives the arc block to rotate, and the arc block pushes the guide block downward through the arc surface, and the guide block drives the elastic telescopic strip downward, and the elastic telescopic strip drives the limit rod downward and hits the top of the condensation filter plate to vibrate, and the vibration will cause the condensed water droplets at the bottom of the condensation filter plate to fall into the collection tray and be collected, thereby improving the condensation effect of subsequent waste gas, and at the same time, when the elastic telescopic strip moves downward, it will drive the push block to move, and the push block drives the inclined block to move through the inclined surface, and the inclined block drives the scraper to slide at the bottom of the condensation filter plate and further scrape off the condensed water droplets at the bottom. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a half-section diagram of the box structure of the present invention;

[0019] Figure 3 A half-section diagram of the purification box structure of the present invention;

[0020] Figure 4 A half-section diagram of the sleeve structure of the present invention;

[0021] Figure 5 It is a schematic diagram of the structure of the air pump of the present invention;

[0022] Figure 6 This is a schematic diagram of the baffle structure of the present invention;

[0023] Figure 7 A half-section diagram of the baffle structure of the present invention;

[0024] Figure 8 This is a half-section view of the condensation filter plate structure of the present invention.

[0025] In the figure: 1. box body; 2. purification box; 21. exhaust pipe; 22. collection box; 23. air pump; 24. one-way valve; 3. stirring device; 31. motor; 32. sleeve; 33. feed port; 34. filter plate; 35. inner cylinder; 36. through hole; 37. transmission rod; 38. spiral blade; 39. arc block; 4. discharge device; 41. elastic telescopic rod; 42. connecting rod; 43. baffle; 44. elastic telescopic column; 45. moving bar; 46. elastic telescopic plate; 47. push plate; 48. arc plate; 5. condensation device; 51. condensation filter plate; 52. condensation tube; 53. elastic telescopic strip; 54. guide block; 55. limit rod; 56. inclined block; 57. scraper; 58. push block; 59. collection tray. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-8An embodiment of the present invention is: a chemical tail gas purification system, including a box body 1, a purification box 2 is fixedly connected to the top of the box body 1, an exhaust pipe 21 is fixedly connected to the top of the purification box 2, a collection box 22 is fixedly connected to the rear of the box body 1, an air pump 23 is fixedly installed on the top of the box body 1, and a one-way valve 24 is installed on the inner wall of the purification box 2; a stirring device 3 is provided at the front of the purification box 2, a discharge device 4 is provided on the inner wall of the purification box 2, and a condensing device 5 is provided on the inner wall of the box body 1; the stirring device 3 includes a motor 31, a sleeve 32, a feed port 33, a filter plate 34, an inner cylinder 35, a through hole 36, a transmission rod 37, a spiral blade 38 and an arc block 39, and the motor 31 is fixedly connected to the purification box 2, sleeve 32 is fixedly connected to the output end of motor 31, feed port 33 is opened on the surface of sleeve 32, filter plate 34 is fixedly connected to the surface of sleeve 32, inner cylinder 35 is fixedly connected to the inner wall of purification box 2, through hole 36 is opened on the upper surface of inner cylinder 35, transmission rod 37 is fixedly connected to the inner wall of sleeve 32, spiral blade 38 is fixedly connected to the surface of transmission rod 37, arc block 39 is fixedly connected to the surface of filter plate 34, chemical tail gas enters into box 1 through the left side of box 1, air pump 23 will extract the waste gas in box 1 and pass it into purification box 2 through one-way valve 24, waste gas will enter the purifier in purification box 2 for purification treatment, purifier will react with some of the waste gas The harmful substances react and form precipitation, thereby achieving the purification of the exhaust gas. At this time, the motor 31 starts and drives the sleeve 32 to rotate, and the sleeve 32 drives the filter plate 34 to rotate. The filter plate 34 will stir the purifier in the purification box 2, increase the contact area between the purifier and the exhaust gas, and improve the purification effect of the exhaust gas; the input and output ends of the air pump 23 are connected to the box body 1 and the purification box 2 respectively, and the side of the filter plate 34 away from the sleeve 32 is in contact with the inner wall of the purification box 2, and the two ends of the sleeve 32 are rotatably connected to the inner wall of the purification box 2, and the surface of the inner cylinder 35 is in contact with the inner wall of the sleeve 32. The rear end of the transmission rod 37 is rotatably connected to the inner wall of the purification box 2, and the rotation of the filter plate 34 will cause the exhaust gas and the agent to move. The generated sediment is pushed, and when the filter plate 34 rotates to the top, the feed port 33 on the surface of the sleeve 32 coincides with the through hole 36 on the surface of the inner cylinder 35, and the sediment on the surface of the filter plate 34 will fall under the action of gravity, and pass through the feed port 33 and the through hole 36 into the inner cylinder 35, and the inner cylinder 35 is fixed to the inner wall of the purification box 2 and cannot rotate, and the sleeve 32 drives the transmission rod 37 and the spiral blades 38 on its surface to rotate inside the inner cylinder 35, so that the spiral blades 38 and the inner cylinder 35 rotate relative to each other, so that the spiral blades 38 drive the collected sediment entering the inner cylinder 35 to move backward and discharge it into the collection box 22, so as to prevent the sediment from accumulating in the purification box 2 and thus affecting the subsequent exhaust gas purification effect.

[0028] The discharge device 4 includes an elastic telescopic rod 41, a connecting rod 42 and a baffle 43. The elastic telescopic rod 41 is fixedly connected to the inner wall of the purification box 2, the connecting rod 42 is fixedly connected to the telescopic end of the elastic telescopic rod 41, and the baffle 43 is fixedly connected to the circumferential surface of the connecting rod 42 through a connecting rod. When the filter plate 34 rotates, it will contact the elastic telescopic rod 41 and push the elastic telescopic rod 41 to contract. When the elastic telescopic rod 41 contracts, it drives the connecting rod 42 to move. The connecting rod 42 pushes the baffle 43 to move through the connecting rod. The baffle 43 will move at the bottom of the exhaust pipe 21, so that the exhaust pipe 21 The exhaust device 4 further comprises an elastic telescopic column 44, a movable bar 45, an elastic telescopic plate 46, a push plate 47 and an arc plate 48. The elastic telescopic column 44 is fixedly connected to the inner wall of the purification box 2, the movable bar 45 is fixedly connected to the end of the elastic telescopic column 44 away from the purification box 2, the elastic telescopic plate 46 is rotatably connected to the inner wall of the baffle 43 through a torsion spring, the push plate 47 is fixedly connected to the surface of the telescopic end of the elastic telescopic plate 46, and the arc plate 48 is fixedly connected to the side of the elastic telescopic plate 46 close to the push plate 47; the top of the baffle 43 The surface of the telescopic end of the elastic telescopic column 44 is slidably connected to the inner wall of the right side of the baffle 43, and the surface of the moving bar 45 is in contact with the side of the elastic telescopic plate 46 close to the arc plate 48. When the filter plate 34 continues to rotate and passes over the elastic telescopic rod 41, the elastic telescopic rod 41 will reset under the action of its own elastic force, and the baffle 43 will reset with the elastic telescopic rod 41 and close the exhaust pipe 21, so that the purified exhaust gas in the purification box 2 can be discharged intermittently, preventing the exhaust gas from being discharged too quickly, thereby preventing some exhaust gas from being fully mixed with the agent. The elastic expansion plate 46 is rotated and opened by the movable bar 45. Then, the movable bar 45 continues to move to the left and pushes the push plate 47 to move. The push plate 47 moves and stretches the elastic expansion plate 46, so that the stretched elastic expansion plate 46 hits the surface of the filter plate 34, causing the filter plate 34 to vibrate and causing the sediment filtered on the surface to fall and enter the inner cylinder 35.

[0029] Working principle: chemical tail gas enters into box 1 through the left side of box 1, air pump 23 will extract the waste gas in box 1 and pass it into purification box 2 through one-way valve 24, and the waste gas will enter the purifier in purification box 2 for purification treatment, the purifier will react with some harmful substances in the waste gas and form precipitation, so as to purify the waste gas. At this time, motor 31 starts and drives sleeve 32 to rotate, sleeve 32 drives filter plate 34 to rotate, filter plate 34 will stir the purifier in purification box 2, increase the contact area between purifier and waste gas, and improve the purification effect of waste gas. At the same time, the rotation of filter plate 34 will push the precipitation generated between waste gas and agent, and in the process When the filter plate 34 rotates to the top, the feed port 33 on the surface of the sleeve 32 coincides with the through hole 36 on the surface of the inner cylinder 35, and the sediment on the surface of the filter plate 34 will fall under the action of gravity and pass through the feed port 33 and the through hole 36 into the inner cylinder 35, while the inner cylinder 35 is fixed to the inner wall of the purification box 2 and cannot rotate, and the sleeve 32 drives the transmission rod 37 and the spiral blades 38 on its surface to rotate inside the inner cylinder 35, so that the spiral blades 38 and the inner cylinder 35 rotate relative to each other, allowing the spiral blades 38 to drive the collected sediment entering the inner cylinder 35 to move backward and discharge into the collection box 22, thereby preventing the sediment from accumulating in the purification box 2 and affecting the subsequent exhaust gas purification effect.

[0030] When the filter plate 34 rotates, it will contact the elastic telescopic rod 41 and push the elastic telescopic rod 41 to contract. When the elastic telescopic rod 41 contracts, it drives the connecting rod 42 to move. The connecting rod 42 pushes the baffle 43 to move through the connecting rod. The baffle 43 will move at the bottom of the exhaust pipe 21, so that the exhaust pipe 21 is connected to the purification box 2, so that the purified exhaust gas is discharged. When the filter plate 34 continues to rotate and passes over the elastic telescopic rod 41, the elastic telescopic rod 41 will reset under the action of its own elastic force, and the baffle 43 will reset together with the elastic telescopic rod 41 and close the exhaust pipe 21, so that the purified exhaust gas in the purification box 2 can be discharged intermittently, preventing the exhaust gas from being discharged. The discharge is too fast, which causes some exhaust gas to not fully react with the reagent. At the same time, when the baffle 43 is on the right side, it will slide on the elastic telescopic column 44, and the elastic telescopic column 44 will push the moving bar 45 to move to the left on the inner wall of the baffle 43. The moving bar 45 pushes the arc plate 48 to move through the arc surface, and the arc plate 48 drives the elastic telescopic plate 46 to rotate and open. Then the moving bar 45 continues to move to the left, which will push the push plate 47 to move. The push plate 47 will move and stretch the elastic telescopic plate 46, so that the stretched elastic telescopic plate 46 hits the surface of the filter plate 34, causing the filter plate 34 to vibrate and prompt the precipitate filtered on the surface to fall and enter the inner cylinder 35.

[0031] See also Figure 1-8On the basis of the above embodiment, in another embodiment of the present invention, the condensing device 5 includes a condensing filter plate 51, a condensing tube 52, an elastic telescopic strip 53, a guide block 54 and a limiting rod 55. The condensing filter plate 51 is fixedly connected to the inner wall of the box body 1, the condensing tube 52 is fixedly connected to the inner wall of the box body 1, the elastic telescopic strip 53 is slidably connected to the inner wall of the top of the box body 1 through an elastic member, the guide block 54 is fixedly connected to the top of the elastic telescopic strip 53, and the limiting rod 55 is fixedly connected to the surface of the elastic telescopic strip 53. The temperature of the chemical waste gas is relatively high. When it enters the box body 1, it will contact the condensation filter plate 51 on the condensation pipe 52, and condense water droplets on its surface and allow some impurities to condense in the water droplets, thereby achieving preliminary filtration and purification of the waste gas; the condensation device 5 also includes an inclined block 56, a scraper 57, a push block 58 and a collection tray 59. The scraper 57 is slidably connected to the bottom of the condensation filter plate 51, the inclined block 56 is fixedly connected to the bottom of the scraper 57, the push block 58 is fixedly connected to the front and rear sides of the elastic telescopic strip 53, and the collection tray 59 is fixedly connected to the front and rear sides of the elastic telescopic strip 53. 9 is slidably mounted on the bottom wall inside the box body 1. When the filter plate 34 rotates, the arc block 39 is driven to rotate. The arc block 39 pushes the guide block 54 downward through the arc surface. The guide block 54 drives the elastic telescopic strip 53 downward. The elastic telescopic strip 53 drives the limit rod 55 downward and hits the top of the condensation filter plate 51, causing it to vibrate. The vibration will cause the condensed water droplets at the bottom of the condensation filter plate 51 to fall off, thereby improving the condensation effect of the subsequent exhaust gas. The upper surface of the push block 58 contacts the bottom of the inclined block 56, and the elastic telescopic strip 53 is driven downward. 3 is slidably connected to the inner wall of the condensation filter plate 51, the surface of the condensation tube 52 is in contact with the upper surface of the condensation filter plate 51, the arc surface of the guide block 54 is in contact with the arc surface of the arc block 39, the circumferential surface of the limit rod 55 is in contact with the upper surface of the condensation filter plate 51, and at the same time, when the elastic telescopic strip 53 moves downward, it will drive the push block 58 to move, and the push block 58 pushes the inclined block 56 to move through the inclined surface, and the inclined block 56 drives the scraper 57 to slide on the bottom of the condensation filter plate 51 and further scrape off the condensed water droplets at the bottom.

[0032] A purification method for a chemical tail gas purification system comprises the following steps:

[0033] Step 1: The chemical tail gas enters the box 1 through the left side of the box 1, and the air pump 23 will extract the waste gas in the box 1 and pass it into the purification box 2 through the one-way valve 24. The waste gas will enter the purifier in the purification box 2 for purification treatment. The purifier will react with some harmful substances in the waste gas and form precipitation, thereby achieving the purification of the waste gas;

[0034] Step 2: The motor 31 is started and drives the sleeve 32 to rotate, and the sleeve 32 drives the filter plate 34 to rotate. The filter plate 34 stirs the purifier in the purification box 2 to increase the contact area between the purifier and the exhaust gas;

[0035] Step 3: The rotation of the filter plate 34 pushes the precipitate generated between the exhaust gas and the reagent, and when the filter plate 34 rotates to the top, the feed port 33 on the surface of the sleeve 32 coincides with the through hole 36 on the surface of the inner cylinder 35, and the precipitate on the surface of the filter plate 34 falls under the action of gravity and passes through the feed port 33 and the through hole 36 into the inner cylinder 35;

[0036] Step 4: The inner cylinder 35 is fixed to the inner wall of the purification box 2 and cannot rotate, and the sleeve 32 drives the transmission rod 37 and the spiral blade 38 on its surface to rotate inside the inner cylinder 35, so that the spiral blade 38 and the inner cylinder 35 rotate relative to each other, so that the spiral blade 38 drives the collected sediment entering the inner cylinder 35 to move backward and discharge into the collection box 22.

[0037] Working principle: The temperature of chemical waste gas is relatively high. When it enters the box body 1, it will contact the condensation filter plate 51 on the condensation pipe 52, and condense water droplets on its surface and allow some impurities to condense in the water droplets, thereby achieving preliminary filtration and purification of the waste gas. When the filter plate 34 rotates, it drives the arc block 39 to rotate. The arc block 39 pushes the guide block 54 downward through the arc surface. The guide block 54 drives the elastic telescopic strip 53 downward. The elastic telescopic strip 53 drives the limit rod 55 to move downward and hit the top of the condensation filter plate 51, causing it to vibrate. The vibration will cause the condensed water droplets at the bottom of the condensation filter plate 51 to fall into the collection tray 59 and be collected, thereby improving the condensation effect of subsequent waste gas. At the same time, when the elastic telescopic strip 53 moves downward, it will drive the push block 58 to move. The push block 58 pushes the inclined block 56 to move through the inclined surface. The inclined block 56 drives the scraper 57 to slide at the bottom of the condensation filter plate 51 and further scrape off the condensed water droplets at the bottom.

[0038] The present invention provides a chemical tail gas purification system and purification method. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A chemical tail gas purification system, comprising a housing (1), Features: The top of the box body (1) is fixedly connected to a purification box (2), the top of the purification box (2) is fixedly connected to an exhaust pipe (21), the rear of the box body (1) is fixedly connected to a collection box (22), the top of the box body (1) is fixedly installed with an air pump (23), and the inner wall of the purification box (2) is installed with a one-way valve (24); The front part of the purification box (2) is provided with a stirring device (3), the inner wall of the purification box (2) is provided with a discharge device (4), and the inner wall of the box body (1) is provided with a condensing device (5); The stirring device (3) comprises a motor (31), a sleeve (32), a feed port (33), a filter plate (34), an inner cylinder (35), a through hole (36), a transmission rod (37), a spiral blade (38) and an arc block (39); the motor (31) is fixedly connected to the front part of the purification box (2); the sleeve (32) is fixedly connected to the output end of the motor (31); the feed port (33) is provided on the surface of the sleeve (32); the filter plate (34) is fixedly connected to the surface of the sleeve (32); the inner cylinder (35) is fixedly connected to the inner wall of the purification box (2); the through hole (36) is provided on the upper surface of the inner cylinder (35); the transmission rod (37) is fixedly connected to the inner wall of the sleeve (32); the spiral blade (38) is fixedly connected to the surface of the transmission rod (37); and the arc block (39) is fixedly connected to the surface of the filter plate (34); The input and output ends of the air pump (23) are respectively connected to the box body (1) and the purification box (2); the side of the filter plate (34) away from the sleeve (32) is in contact with the inner wall of the purification box (2); both ends of the sleeve (32) are rotatably connected to the inner wall of the purification box (2); the surface of the inner cylinder (35) is in contact with the inner wall of the sleeve (32); and the rear end of the transmission rod (37) is rotatably connected to the inner wall of the purification box (2); The discharge device (4) further comprises an elastic telescopic column (44), a movable bar (45), an elastic telescopic plate (46), a push plate (47) and an arc plate (48), wherein the elastic telescopic column (44) is fixedly connected to the inner wall of the purification box (2), the movable bar (45) is fixedly connected to an end of the elastic telescopic column (44) away from the purification box (2), the elastic telescopic plate (46) is rotatably connected to the inner wall of the baffle (43) via a torsion spring, the push plate (47) is fixedly connected to the surface of the telescopic end of the elastic telescopic plate (46), and the arc plate (48) is fixedly connected to a side of the elastic telescopic plate (46) close to the push plate (47); The discharge device (4) comprises an elastic telescopic rod (41), a connecting rod (42) and a baffle (43); the elastic telescopic rod (41) is fixedly connected to the inner wall of the purification box (2); the connecting rod (42) is fixedly connected to the telescopic end of the elastic telescopic rod (41); and the baffle (43) is fixedly connected to the circumferential surface of the connecting rod (42) via a connecting rod; The top of the baffle (43) is slidably connected to the inner wall of the purification box (2), the surface of the telescopic end of the elastic telescopic column (44) is slidably connected to the inner wall on the right side of the baffle (43), and the surface of the moving bar (45) is in contact with a side of the elastic telescopic plate (46) close to the arc plate (48).

2. A chemical tail gas purification system according to claim 1, Features: The condensing device (5) comprises a condensing filter plate (51), a condensing tube (52), an elastic telescopic strip (53), a guide block (54) and a limiting rod (55); the condensing filter plate (51) is fixedly connected to the inner wall of the box body (1); the condensing tube (52) is fixedly connected to the inner wall of the box body (1); the elastic telescopic strip (53) is slidably connected to the inner wall at the top of the box body (1) via an elastic member; the guide block (54) is fixedly connected to the top of the elastic telescopic strip (53); and the limiting rod (55) is fixedly connected to the surface of the elastic telescopic strip (53).

3. A chemical tail gas purification system according to claim 2, Features: The condensing device (5) further comprises an inclined block (56), a scraper (57), a push block (58) and a collecting plate (59); the scraper (57) is slidably connected to the bottom of the condensing filter plate (51); the inclined block (56) is fixedly connected to the bottom of the scraper (57); the push block (58) is fixedly connected to the front and rear sides of the elastic telescopic strip (53); and the collecting plate (59) is slidably mounted on the bottom wall inside the box body (1).

4. A chemical tail gas purification system according to claim 3, Features: The upper surface of the push block (58) is in contact with the bottom of the inclined block (56), the surface of the elastic expansion strip (53) is slidably connected to the inner wall of the condensation filter plate (51), the surface of the condensation tube (52) is in contact with the upper surface of the condensation filter plate (51), the arc surface of the guide block (54) is in contact with the arc surface of the arc block (39), and the circumferential surface of the limit rod (55) is in contact with the upper surface of the condensation filter plate (51).

5. A purification method for a chemical tail gas purification system according to any one of claims 1 to 4, Features: The following steps are involved: Step 1: The chemical exhaust gas enters the box (1) through the left side of the box (1), the air pump (23) extracts the exhaust gas in the box (1) and passes it into the purification box (2) through the one-way valve (24), and the exhaust gas enters the purification agent in the purification box (2) for purification treatment. The purification agent reacts with some harmful substances in the exhaust gas and forms precipitation, thereby achieving purification of the exhaust gas; Step 2: The motor (31) is started and drives the sleeve (32) to rotate, and the sleeve (32) drives the filter plate (34) to rotate. The filter plate (34) stirs the purifier in the purification box (2) to increase the contact area between the purifier and the exhaust gas; Step 3: The rotation of the filter plate (34) pushes the precipitate generated between the exhaust gas and the reagent, and when the filter plate (34) rotates to the uppermost position, the feed port (33) on the surface of the sleeve (32) coincides with the through hole (36) on the surface of the inner cylinder (35), and the precipitate on the surface of the filter plate (34) falls under the action of gravity and passes through the feed port (33) and the through hole (36) into the inner cylinder (35); Step 4: The inner cylinder (35) is fixed to the inner wall of the purification box (2) and cannot rotate, while the sleeve (32) drives the transmission rod (37) and the spiral blade (38) on its surface to rotate inside the inner cylinder (35), so that the spiral blade (38) and the inner cylinder (35) rotate relative to each other, allowing the spiral blade (38) to drive the collected sediment entering the inner cylinder (35) to move backward and discharge into the collection box (22).

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