Sulfuric acid high-temperature absorption tower with pump groove

Abstract

The invention relates to the technical field of heat energy recovery, in particular to a sulfuric acid high-temperature absorption tower with a pump groove, which comprises a lower tower body, the pump groove, an upper tower body, a demister, a cam disc, a switching rod, a spraying component, a switching component, a vibration component and a purging component. According to the concentrated sulfuric acid heat recovery tower, the situation that the treatment effect of the demister on sulfuric acid mist is reduced and the working efficiency of the concentrated sulfuric acid heat recovery tower is affected due to long-time use of the concentrated sulfuric acid heat recovery tower is prevented while the corrugated plate of the demister is rapidly and comprehensively cleaned, and the pump tank is arranged to help heat transfer in different areas in the tower through continuous liquid flowing, so that the heat transfer efficiency is improved. And uniform distribution of the temperature of the liquid is ensured, so that the heat recovery efficiency is maximized.

Description

Technical Field

[0001] The invention relates to the technical field of heat energy recovery, in particular to a sulfuric acid high-temperature absorption tower with a pump tank. Background Art

[0002] Sulfuric acid is one of the commonly used raw materials in the chemical industry. The reaction between SO3 and water during the preparation of sulfuric acid releases a large amount of heat energy, so low-temperature heat recovery devices are often used in the preparation of sulfuric acid. The tower that recovers heat from concentrated sulfuric acid is usually called a heat exchange tower or a heat recovery tower. Its main function is to recover heat from the high-temperature concentrated sulfuric acid flow to improve energy utilization efficiency and reduce energy consumption. This type of equipment is widely used in thermal energy management in sulfuric acid production, chemical engineering and industrial processes. In the sulfuric acid production process, the heat recovery tower is used to improve energy efficiency and reduce energy consumption.

[0003] In the concentrated sulfuric acid heat recovery tower, heat energy in the system is usually recovered through multiple stages of heat exchange. The pump tank helps heat transfer in different areas of the tower through continuous liquid flow and ensures that the temperature of the liquid is evenly distributed, so as to maximize the heat recovery efficiency. The heat recovery tower is usually a vertical structure. Fillers, grids or heat exchange surfaces of different forms can be set in the tower to improve the heat conduction efficiency. The heat recovery tower is generally equipped with two-stage absorption. The upper part of the tower is the secondary acid absorption area with a secondary acid concentration of about 98%, and the lower part is the primary acid absorption area with a primary acid concentration of about 99%. Due to the difference in the concentration and temperature of the two-stage spraying acid, the low-concentration secondary acid flows through the high-temperature primary acid absorption area after absorbing SO3. The sulfuric acid gas usually forms small sulfuric acid droplets (sulfuric acid mist) due to temperature changes. The demister gathers and removes these fine droplets to prevent sulfuric acid mist from entering the outside of the tower, causing environmental pollution or posing a threat to personnel health. At the same time, it also prevents sulfuric acid mist droplets from entering other equipment or pipelines with gas discharge, such as being distributed in different areas of the tower and in pipelines connected to the pump tank, causing corrosion of the equipment, affecting the service life of the equipment and the heat recovery efficiency of metal parts.

[0004] In the prior art, for example, a heat recovery tower for a low-temperature heat recovery device with patent number CN116492817A is provided, in which a gas-lift baffle is arranged between the primary acid absorption zone and the secondary acid absorption zone. The sulfuric acid in the secondary acid absorption zone flows to the gas-lift baffle, and flows into the high-temperature circulation tank through a downcomer pipe connected to one side of the gas-lift baffle, so that the acid does not pass through the primary acid separator, thereby avoiding acid corrosion to the primary acid separator, ensuring the performance of the primary acid separator, and extending the service life of the primary acid separator.

[0005] However, after long-term use, salt deposits, scale, sulfuric acid mist, etc. will condense between the corrugated plates of the demister of the heat recovery tower. The long-term accumulation of impurities will clog the pores and surface of the demister, especially the lower end of the demister corrugated plate, which is closer to the primary acid absorption area. Compared with the upper end, more sulfuric acid mist needs to be removed, and the overall height of the heat recovery tower is generally between 10 meters and 50 meters, which makes it very inconvenient to shut down for cleaning. If it is not cleaned in time, it will affect the removal of sulfuric acid mist droplets in the tower, causing the sulfuric acid mist droplets that are not removed to corrode the upper pipe connected to the pump trough in the waste heat absorption tower, affecting the distribution of heat in the heat recovery tower, and then affecting the waste heat absorption efficiency of the heat recovery tower, and also causing part of the sulfuric acid mist to enter the outside of the tower to cause environmental pollution. Therefore, how to regularly and targetedly clean the demister of the heat recovery tower with pump trough and pipeline to ensure the sulfuric acid mist treatment effect of the concentrated sulfuric acid heat recovery tower is particularly important.

[0006] Therefore, a high-temperature sulfuric acid absorption tower with a pump tank is proposed. Summary of the invention

[0007] The object of the present invention is to provide a high-temperature sulfuric acid absorption tower with a pump trough, in view of the problem that the demister corrugated plates in the high-temperature sulfuric acid absorption tower in the prior art will be clogged by foreign matter such as salt deposits, scale, sulfuric acid mist, etc. after long-term use, making cleaning difficult and affecting the working efficiency of the high-temperature sulfuric acid absorption tower.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A high-temperature sulfuric acid absorption tower with a pump trough comprises a lower tower body, a pump trough, an upper tower body, a demister, a cam plate, a switching rod, a spray component, a switching component, a vibrating component and a purge component, wherein a lower tower trough is provided in the lower tower body, the pump trough is connected to the lower right end of the lower tower trough, a water trough is provided in the pump trough, the water trough is communicated with the lower tower trough, the bottom of the water trough is lower than the bottom of the lower tower trough, the upper tower body is arranged at the upper end of the lower tower body, an upper tower trough is arranged in the upper tower body, the demister is arranged in the upper tower body, the cam plate is arranged in the upper tower trough, the switching rod is arranged at the right end of the cam plate, The spray component is arranged on the outside of the defogger. When the cam disc rotates, it drives the switching rod to move downward and lifts the defogger upward to spray water for cleaning. The switching component is arranged on the left side of the switching rod. After the switching rod moves downward into the water tank, the rotation radius of the cam disc is increased. The vibration component is arranged on the defogger. After the rotation radius of the cam disc is increased, it cooperates with the cam disc to drive the defogger to vibrate downward, and cooperates with the upper tower body to shake the defogger back and forth. The purge component is arranged at the lower right end of the defogger. After the rotation radius of the cam disc is increased, it cooperates with the cam disc to purge air to the bottom of the defogger.

[0010] Preferably, the inner diameter of the upper tower trough is greater than the inner diameter of the lower tower trough, a reducing chamfer is provided at the connection between the upper tower trough and the lower tower trough, and a plurality of corrugated plates are installed on the demister.

[0011] Preferably, the spray component includes a spray pipe, an upper support rod, a lifting rod, a locking unit, a movable groove, a movable gear, a movable rack and a sealing unit, the spray pipe is arranged at the upper end of the defogger, the spray pipe is connected to the pump groove, the upper support rod is arranged on the upper right side of the defogger, the lifting rod is arranged at the lower end of the upper support rod, the lifting rod is fitted with a cam plate, the locking unit is arranged on the right side of the upper support rod, the movable groove is opened in the upper tower body, the movable rack is slidably connected in the movable groove, the lower end of the movable rack is connected to the switching rod, a movable gear is arranged at the front end of the movable rack, the movable gear is meshed with the movable rack, the movable gear is rotatably connected in the movable groove, a connecting shaft is arranged between the movable gear and the cam plate, the movable gear is coaxially connected to the cam plate through the connecting shaft, and a sealing unit is arranged at the front and rear ends of the defogger.

[0012] Preferably, the locking unit includes a locking platform, a locking slot, a locking rack and a locking spring. A locking slot is provided on the right side of the lifting rod. The locking platform is fixed on the right side of the upper support rod. The locking slot is opened in the locking platform. The locking rack is slidably connected in the locking slot. The left end of the locking rack cooperates with the locking slot, and the two ends of the locking spring respectively abut against the right end of the locking rack and the inner wall of the locking platform.

[0013] Preferably, the sealing unit includes a sealing groove, a sealing baffle and a sealing spring. Limiting blocks are arranged on the front and rear sides of the upper end of the defogger. Limiting grooves are arranged on the front and rear ends of the upper tower groove. The limiting blocks are slidably connected to the limiting grooves. The sealing groove is opened on the upper and lower sides of the limiting groove. The sealing baffle is slidably connected in the sealing groove. The sealing baffle is fixedly connected to the limiting block. The sealing spring is arranged in the limiting groove. The two ends of the sealing spring are respectively connected to the lower end of the limiting block and the inner wall of the upper tower body.

[0014] Preferably, the switching component includes an upper push block, an upper push chamfer, a horizontal push block, a limit latch and an ejection unit, a push block groove is opened on the right side of the upper push block, a push block spring is arranged in the push block groove, a push block baffle is arranged at the left end of the switching rod, the push block baffle is slidably connected to the push block groove, two ends of the push block spring are respectively connected to the lower end of the push block baffle and the inner wall of the upper push block, the upper push block is slidably connected to the right end of the switching rod, the upper push chamfer is arranged at the upper end of the upper push block, the limit latch is arranged on the left side of the moving rack, the horizontal push block is slidably connected to the limit latch, the lower end of the upper push block cooperates with the lower tower groove, the upper push chamfer cooperates with the lower end of the horizontal push block, and the ejection unit is arranged at the right end of the horizontal push block.

[0015] Preferably, the ejection unit comprises an ejection baffle, an ejection spring, an ejection sleeve, an extrusion baffle, a telescopic groove, a telescopic block, a telescopic chamfer, a telescopic baffle and a telescopic spring, the telescopic groove being opened in the cam disk, the ejection sleeve being sleeved on the connecting shaft, the ejection baffle being arranged in the movable groove, the ejection baffle being connected to the right end of the ejection sleeve, the ejection baffle being fitted with the horizontal pushing block, the extrusion baffle being arranged in the telescopic groove, the extrusion baffle being connected to the left end of the ejection sleeve, the ejection spring being arranged on the outside of the ejection sleeve, the two ends of the ejection spring being respectively connected to the left end of the ejection baffle and the inner wall of the upper tower body, the telescopic block being slidably connected in the telescopic groove, the telescopic block extending outward from the side with the largest radius of the cam disk away from the connecting shaft, the telescopic baffle being arranged on the side of the telescopic block, the two ends of the telescopic spring respectively abutting against the end of the telescopic baffle away from the connecting shaft and the inner wall of the cam disk, and the telescopic chamfer being matched with the extrusion baffle.

[0016] Preferably, the vibration component includes a lower support rod, a vibration groove, a vibration spring and a vibration rod, the lower support rod is arranged at the lower right end of the defogger, the upper end of the lower support rod cooperates with the telescopic block, the vibration groove is opened on the inner wall of the lower end of the defogger, the vibration rod is slidably connected in the vibration groove, the vibration spring is arranged in the vibration groove, the two ends of the vibration spring are respectively abutted against the front end of the vibration rod and the inner wall of the defogger, the rear end of the vibration rod cooperates with the reducing chamfer, the vibration rod is inserted between the corrugated plates, and the vibration rod is fixedly connected to the corrugated plates.

[0017] Preferably, the purge component includes a purge hole, a purge groove, a purge spring, a purge gasket and an unlocking unit, the purge hole is opened on the inner wall of the upper end of the defogger, the purge groove is opened in the upper support rod, the purge gasket is arranged at the upper end of the lifting rod, the purge spring is arranged in the purge groove, the two ends of the purge spring are respectively connected to the upper end of the purge gasket and the inner wall of the purge groove, and the unlocking unit is arranged in the locking table.

[0018] Preferably, the unlocking unit includes an unlocking gear and an unlocking rack, the unlocking gear is rotatably connected in the locking groove, the unlocking gear is meshed with the rear end of the locking rack, the unlocking rack is slidably connected in the locking groove, the front end of the unlocking rack is meshed with the unlocking gear, and the right end of the unlocking rack cooperates with the horizontal push block.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present application arranges a cam plate on the side of the demister, and when the cam plate rotates, it drives the demister to be repeatedly lifted and lowered, and cooperates with the spray pipe to clean the corrugated plate of the demister. By arranging the bottom of the water tank of the water pump below the bottom of the lower tower tank, the liquid level height of the pump tank can be increased, and the water tank and the lower tower tank can cooperate with the switching component to change the vibration direction of the demister, and cooperate with the variable diameter chamfer to deeply clean the places on the bottom of the corrugated plate where foreign matter is easily accumulated, and cooperate with the purge component to blow off foreign matter and water stains on the corrugated plate of the demister, so as to achieve rapid and comprehensive cleaning of the corrugated plate of the demister, and prevent the corrugated plate from rusting due to residual water and foreign matter when the concentrated sulfuric acid heat recovery tower is out of use, thereby preventing the working efficiency of the concentrated sulfuric acid heat recovery tower from being affected by the residual water and foreign matter. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the spray component of the present invention;

[0024] Figure 4 It is a schematic diagram of the cross-sectional structure of the sealing unit of the present invention;

[0025] Figure 5 It is a schematic diagram of the cross-sectional structure of the movable groove of the present invention;

[0026] Figure 6 It is a schematic diagram of the cross-sectional structure of the switching component of the present invention;

[0027] Figure 7 For the present invention Figure 6 The enlarged structural diagram at A in the middle;

[0028] Figure 8 It is an enlarged structural schematic diagram of the push-out unit of the present invention;

[0029] Fig. 9 It is an enlarged structural schematic diagram of the extension block of the present invention in an extended state;

[0030] Fig.10 It is a schematic diagram of the cross-sectional structure of the vibration component of the present invention;

[0031] Fig.11 It is a schematic diagram of the cross-sectional structure of the unlocking unit of the present invention;

[0032] Fig.12 For the present invention Fig.11 The enlarged structural diagram at C in the middle;

[0033] Fig.13 For the present invention Fig. 9 Enlarged structural diagram at B in the middle.

[0034] In the figure: 1, pump tank; 11, water tank; 2, switching rod; 3, lower tower body; 31, lower tower tank; 4, upper tower body; 41, upper tower tank; 5, demister; 6, spray component; 7, purge component; 8, cam plate; 9, switching component; 101, vibrating component; 102, variable diameter chamfer; 51, corrugated plate; 61, spray pipe; 62, sealing unit; 63, upper support rod; 64, lifting rod; 641, locking slot; 65, locking unit; 66, moving gear; 661, connecting shaft; 67, moving slot; 68, moving rack; 651, locking platform; 652, locking slot; 653, locking spring; 654, locking rack; 621, sealing slot; 622, sealing baffle; 623, sealing spring; 52, Limit block; 42, limit slot; 91, push block; 92, push chamfer; 93, push block; 94, limit latch; 95, push unit; 911, push block slot; 912, push block spring; 21, push block baffle; 951, push baffle; 952, push spring; 953, push sleeve; 954, squeeze baffle; 955, telescopic slot; 956, telescopic chamfer; 957, telescopic baffle; 958, telescopic spring; 959, telescopic block; 53, lower support rod; 1011, vibration slot; 1012, vibration spring; 1013, vibration rod; 71, purge hole; 72, purge slot; 73, purge spring; 74, purge gasket; 75, unlocking unit; 751, unlocking gear; 752, unlocking rack. DETAILED DESCRIPTION

[0035] In order to make the technical solutions in the embodiments of the present invention clearly and completely described, and the features and advantages can be more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification. 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 making creative work are within the scope of protection of the present invention.

[0036] Example 1

[0037] See also Figures 1 to 5The present invention provides a high-temperature sulfuric acid absorption tower with a pump trough, comprising a lower tower body 3, a pump trough 1, an upper tower body 4, a demister 5, a cam plate 8, a switching rod 2, a spray component 6, a switching component 9, a vibration component 101 and a purge component 7. A lower tower trough 31 is provided in the lower tower body 3, the pump trough 1 is connected to the lower right end of the lower tower trough 31, a water trough 11 is provided in the pump trough 1, the water trough 11 is connected to the lower tower trough 31, and the bottom of the water trough 11 is lower than the bottom of the lower tower trough 31. The design here can make the pump trough contain more water, and it is convenient for the pump trough 1 to use a pipeline to make more liquid flow in the tower, so that the temperature distribution of the liquid in the tower is uniform, and the heat recovery efficiency is improved. The upper tower body 4 is arranged at the upper end of the lower tower body 3, and an upper tower trough 41 is provided in the upper tower body 4. The demister 5 It is arranged in the upper tower body 4, the cam disc 8 is arranged in the upper tower groove 41, the switching rod 2 is arranged at the right end of the cam disc 8, and the spray component 6 is arranged on the outside of the defogger 5. When the cam disc 8 rotates, it drives the switching rod 2 to move downward and lifts the defogger 5 upward to spray water for cleaning. The switching component 9 is arranged on the left side of the switching rod 2. After the switching rod 2 moves downward into the water tank 11, the rotation radius of the cam disc 8 is enlarged. The vibration component 101 is arranged on the defogger 5. After the rotation radius of the cam disc 8 becomes larger, it cooperates with the cam disc 8 to drive the defogger 5 to vibrate downward, and cooperates with the upper tower body 4 to shake the defogger 5 back and forth. The purge component 7 is arranged at the lower right end of the defogger 5. After the rotation radius of the cam disc 8 becomes larger, it cooperates with the cam disc 8 to blow air to the bottom of the defogger 5.

[0038] See also Figures 2 to 3 Specifically, the inner diameter of the upper tower trough 41 is larger than the inner diameter of the lower tower trough 31. The design here can make more space in the upper tower body 4 to install more corrugated plates 51, so as to improve the sulfuric acid mist removal efficiency of the concentrated sulfuric acid heat recovery tower. A reducing chamfer 102 is provided at the connection between the upper tower trough 41 and the lower tower trough 31, and a plurality of corrugated plates 51 are installed on the demister 5.

[0039] See also Figures 2 to 5Specifically, the spray component 6 includes a spray pipe 61, an upper support rod 63, a lifting rod 64, a locking unit 65, a movable groove 67, a movable gear 66, a movable rack 68 and a sealing unit 62. The spray pipe 61 is arranged at the upper end of the demister 5, and the spray pipe 61 is connected to the pump tank 1. The pump tank 1 is used to provide water to the spray pipe 61. A high-pressure water gun (not shown in the figure) is arranged at the lower end of the spray pipe 61. The high-pressure water gun is used to spray foreign matter on the corrugated plate 51. The upper support rod 63 is arranged on the upper right side of the demister 5, and the lifting rod 64 is arranged at the lower end of the upper support rod 63. The lifting rod 64 is in contact with the cam plate 8. The locking unit 65 is arranged on the right side of the upper support rod 63. The movable groove 67 is opened In the upper tower body 4, the moving rack 68 is slidably connected in the moving groove 67, and the moving gear 66 is driven by a motor (not shown in the figure). The motor can be set at the right end of the moving gear 66 and fixed on the outer side of the upper tower body 4. The motor is used to drive the moving gear 66 to rotate. The lower end of the moving rack 68 is connected to the switching rod 2, and a moving gear 66 is set at the front end of the moving rack 68. The moving gear 66 is meshed with the moving rack 68. The moving gear 66 is rotatably connected in the moving groove 67, and a connecting shaft 661 is set between the moving gear 66 and the cam disk 8. The moving gear 66 is coaxially connected to the cam disk 8 through the connecting shaft 661. The defogger 5 is provided with a sealing unit 62 at both ends.

[0040] See also Figures 3 to 5 Specifically, the locking unit 65 includes a locking platform 651, a locking groove 652, a locking rack 654 and a locking spring 653. A locking slot 641 is provided on the right side of the lifting rod 64. The locking platform 651 is fixed to the right side of the upper support rod 63. The locking groove 652 is provided in the locking platform 651. The locking rack 654 is slidably connected in the locking groove 652. The left end of the locking rack 654 cooperates with the locking slot 641. The cooperation here means that in a normal state, the locking slot 641 on the side of the lifting rod 64 corresponds horizontally to the locking rack 654. The locking rack 654 can be inserted into the locking slot 641 under the action of the locking spring 653. The two ends of the locking spring 653 respectively abut the right end of the locking rack 654 and the inner wall of the locking platform 651.

[0041] See also Figure 4Specifically, the sealing unit 62 includes a sealing groove 621, a sealing baffle 622 and a sealing spring 623. The limiting blocks 52 are arranged on the front and rear sides of the upper end of the defogger 5. The limiting grooves 42 are arranged on the front and rear ends of the upper tower groove 41. The limiting blocks 52 are slidably connected to the limiting grooves 42. The sealing groove 621 is opened on the upper and lower sides of the limiting groove 42. The sealing baffle 622 is slidably connected in the sealing groove 621. The sealing baffle 622 is fixedly connected to the limiting block 52. The sealing spring 623 is arranged in the limiting groove 42. The two ends of the sealing spring 623 are respectively connected to the lower end of the limiting block 52 and the inner wall of the upper tower body 4.

[0042] Working principle: After the mist eliminator 5 of the concentrated sulfuric acid heat recovery tower has been used for a long time, the corrugated plate 51 of the mist eliminator 5 is clogged due to the adhesion and accumulation of foreign matter, and the heat recovery efficiency of the concentrated sulfuric acid heat recovery tower decreases. The operator drives the motor to rotate and turns on the high-pressure water gun to make the motor drive the moving gear 66 to rotate. The rotation of the moving gear 66 drives the cam plate 8 coaxially connected thereto to rotate. At this time, since the left end of the locking rack 654 is plugged into the locking slot 641, when the cam plate 8 rotates, it drives the lifting rod 64 to move up and down. The up and down movement of the lifting rod 64 can drive the upper support rod 63 and the mist eliminator 5 to continuously move upward and then reset. In the process of the mist eliminator 5 moving up and resetting, the limit blocks 52 at the front and rear ends of the mist eliminator 5 continuously stretch the sealing spring 623 and reset, and the sealing baffle 622 can effectively prevent the upper tower groove The water mist, flue gas, etc. in 41 enter the limit groove 42 to prevent corrosion to the sealing spring 623. In the process of the demister 5 continuously moving upward and then resetting, the spray pipe 61 at the upper end of the demister 5 continuously cleans the corrugated plate 51 of the demister 5 through the high-pressure water gun, and the foreign matter on the corrugated plate 51 is washed loose or dropped. The vibration process of the demister 5 constantly approaching and moving away from the high-pressure water gun can make the high-pressure water gun have a better flushing effect on the corrugated plate 51. At the same time, with the slight vibration of the demister 5, a deeper cleaning effect can be achieved, so that the concentrated sulfuric acid heat recovery tower does not need to disassemble and remove the corrugated plate 51, and the deep cleaning of the foreign matter in the demister 5 can be achieved, thereby preventing the working efficiency of the demister 5 from decreasing, causing corrosion of the pipe connected to the pump tank 1, saving cleaning time, and improving the working efficiency of the concentrated sulfuric acid heat recovery tower.

[0043] Example 2

[0044] See also Figures 6 to 10, a high-temperature sulfuric acid absorption tower with a pump groove is provided, including a switching component 9, the switching component 9 includes an upper push block 91, an upper push chamfer 92, a horizontal push block 93, a limit latch 94 and a push unit 95, a push block groove 911 is opened on the right side of the upper push block 91, a push block spring 912 is arranged in the push block groove 911, a push block baffle 21 is arranged at the left end of the switching rod 2, the push block baffle 21 is slidably connected to the push block groove 911, and the two ends of the push block spring 912 are respectively connected to the lower end of the push block baffle 21 and the inner wall of the upper push block 91, the upper push block 91 is slidably connected to the right end of the switching rod 2, the upper push chamfer 92 is arranged at the upper end of the upper push block 91, the limit latch 94 is arranged on the left side of the moving rack 68, and the horizontal push block 93 is slidably connected to the upper push block 91. On the limit latch 94, the lower end of the upper push block 91 cooperates with the lower tower groove 31, and the upper push chamfer 92 cooperates with the lower end of the horizontal push block 93. The cooperation here means that when the switching rod 2 drives the upper push block 91 and the horizontal push block 93 to move downward to the bottom of the lower tower groove 31, the lower end of the upper push block 91 abuts against the bottom of the lower tower groove 31. At this time, the switching rod 2 can continue to drive the horizontal push block 93 to move downward until the lower end of the switching rod 2 abuts against the bottom of the water tank 11. In this process, the upper push block 91 compresses the push block spring 912 and the upper push rod moves upward relative to the horizontal push block 93, so that the upper push chamfer 92 first fits with the lower end of the horizontal push block 93, and gradually pushes the horizontal push block 93 to the left along the upper push chamfer 92 to the left end of the upper push block 91, and the pushing unit 95 is arranged at the right end of the horizontal push block 93. The switch of the high-pressure water gun can be connected to the motor. When the motor starts working, the switch of the high-pressure water gun is turned on. When the motor drives the moving gear 66 to rotate a certain number of circles, the high-pressure water gun stops working. At this time, the lower end of the upper push block 91 is in contact with the bottom of the lower tower groove 31.

[0045] See also Figures 6 to 10Specifically, the ejection unit 95 includes an ejection baffle 951, an ejection spring 952, an ejection sleeve 953, an extrusion baffle 954, a telescopic slot 955, a telescopic block 959, a telescopic chamfer 956, a telescopic baffle 957 and a telescopic spring 958. The telescopic slot 955 is provided in the cam disc 8. The ejection sleeve 953 is sleeved on the connecting shaft 661. The ejection baffle 951 is provided in the moving slot 67. The ejection baffle 951 is connected to the right end of the ejection sleeve 953. The ejection baffle 951 is fitted with the horizontal push block 93. When the horizontal push block 93 moves to the left, the ejection baffle 951 can be pushed to move leftward to extrude the ejection spring 952. The extrusion baffle 954 is provided in the telescopic slot 955. The extrusion baffle 954 is connected to the left end of the ejection sleeve 953. The ejection spring 952 is provided on the outside of the ejection sleeve 953. Both ends of the ejection spring 952 are respectively connected to the ejection baffle 951. The left end is connected to the inner wall of the upper tower body 4, the telescopic block 959 is slidably connected in the telescopic groove 955, the telescopic block 959 extends out of the outer side of the maximum radius of the cam disc 8 away from the connecting shaft 661, the telescopic baffle 957 is arranged on the side of the telescopic block 959, the two ends of the telescopic spring 958 are respectively abutted against the end of the telescopic baffle 957 away from the connecting shaft 661 and the inner wall of the cam disc 8, the telescopic chamfer 956 cooperates with the extrusion baffle 954, and the cooperation here means that when the push-out baffle 951 moves to the left, the push-out baffle 951 drives the push-out sleeve 953 and the extrusion baffle 954 to move to the left, the extrusion baffle 954 moves to the left and fits with the telescopic chamfer 956, and pushes the telescopic block 959 to the side away from the connecting shaft 661 along the extrusion chamfer, so that the telescopic baffle 957 on the side of the telescopic block 959 squeezes the telescopic spring 958, and the telescopic block 959 extends out of the end of the cam disc 8 at the maximum outer diameter away from the connecting shaft 661.

[0046] See also Fig.10Specifically, the vibration component 101 includes a lower support rod 53, a vibration groove 1011, a vibration spring 1012 and a vibration rod 1013. The lower support rod 53 is arranged at the right end of the lower side of the defogger 5, and the upper end of the lower support rod 53 cooperates with the telescopic block 959. The cooperation here means that when the telescopic block 959 extends out of the cam plate 8, the cam plate 8 rotates to drive the telescopic block 959 to rotate, and the end of the telescopic block 959 away from the connecting shaft 661 can fit with the lower support rod 53 and push the lower support rod 53 to drive the defogger 5 to move downward. The vibration groove 1011 is opened on the inner wall of the lower end of the defogger 5, and the vibration rod 1013 is slidably connected in the vibration groove 1011. The tremor spring 1012 is arranged in the tremor groove 1011, and the two ends of the tremor spring 1012 are respectively abutted against the front end of the tremor rod 1013 and the inner wall of the defogger 5, and the rear end of the tremor rod 1013 is fitted with the reducing chamfer 102. When the defogger 5 moves downward, the defogger 5 drives the tremor rod 1013 to move downward, so that the tremor rod 1013 moves along the inclined direction of the reducing chamfer 102, toward the side close to the tremor groove 1011 and squeezes the tremor spring 1012. The movement of the tremor rod 1013 drives the corrugated plate 51 to shake slightly. The tremor rod 1013 is interspersed between the corrugated plates 51, and the tremor rod 1013 is fixedly connected to the corrugated plates 51.

[0047] The rest of the structure is the same as that of Example 1.

[0048] Working principle: In the process of the motor rotating and driving the moving gear 66 to rotate, the moving gear 66 rotates and drives the moving rack 68 to move downward, and the moving rack 68 moves downward and drives the switching rod 2 to move downward. When the switching rod 2 moves downward and drives the upper push block 91 and the horizontal push block 93 to move downward to the bottom of the lower tower tank 31, the high-pressure water gun stops working, and the lower end of the upper push block 91 abuts against the bottom of the lower tower tank 31. Since the bottom of the water tank 11 is lower than the bottom of the lower tower tank 31, the switching rod 2 can continue to drive the horizontal push block 93 to move downward until the lower end of the switching rod 2 abuts against the bottom of the water tank 11. In this process, the upper push block 91 compresses the push block spring 912 and the upper push rod moves upward relative to the horizontal push block 93, causing the upper push block 91 to fall. The corner 92 first fits with the lower end of the horizontal push block 93, and gradually pushes the horizontal push block 93 to the left along the upper push chamfer 92 to the left end of the upper push block 91. When the horizontal push block 93 moves to the left, the push-out baffle 951 can be pushed to move to the left to squeeze the push-out spring 952, and the push-out baffle 951 drives the push-out sleeve 953 and the squeeze baffle 954 to move to the left. The squeeze baffle 954 moves to the left and fits with the telescopic chamfer 956, and pushes the telescopic block 959 to the side away from the connecting shaft 661 along the squeeze chamfer, so that the telescopic baffle 957 on the side of the telescopic block 959 squeezes the telescopic spring 958, and the telescopic block 959 extends out of the cam disc 8 at the maximum outer diameter of the end away from the connecting shaft 661. When the telescopic block 959 extends out of the cam When the cam plate 8 is out, the cam plate 8 rotates to drive the telescopic block 959 to rotate, and the end of the telescopic block 959 away from the connecting shaft 661 can fit with the lower support rod 53, and push the lower support rod 53 to drive the defogger 5 to move downward. When the defogger 5 moves downward, the defogger 5 drives the vibration rod 1013 to move downward, so that the vibration rod 1013 moves along the inclined direction of the variable diameter chamfer 102, toward the side close to the vibration groove 1011 and squeezes the vibration spring 1012. The movement of the vibration rod 1013 drives the corrugated plate 51 to shake slightly, thereby achieving vibration cleaning of the corrugated plate 51 and removing residual water stains on the corrugated plate 51. The shaking of the vibration rod 1013 drives the lower end of the corrugated plate 51 to shake back and forth, which can achieve the purpose of cleaning the corrugated plate 51 with a The distance between the secondary acid absorption zone and the secondary acid absorption zone is closer. Compared with the upper end, the lower end of the corrugated plate 51, which needs to remove more sulfuric acid mist, is subjected to targeted multi-directional high-frequency vibration cleaning. At the same time, the water stain mixture on the corrugated plate 51 after being flushed by the high-pressure water gun can also be vibrated off to achieve further cleaning of the corrugated plate 51. The setting of the variable diameter chamfer 102 can gradually realize the transition from the lower tower trough 31 to the upper tower trough 41 with a larger radius, so that more corrugated plates 51 can be filled in the upper tower trough 41. While improving the heat exchange effect of the concentrated sulfuric acid heat recovery tower, the lower end of the corrugated plate 51 is vibrated and cleaned in coordination with the downward movement of the demister 5, so that the cleaning of the corrugated plate 51 is more targeted, and the cleaning of the corrugated plate 51 is convenient while improving the cleaning effect.

[0049] Example 3

[0050] See also Figures 9 to 13, a high-temperature sulfuric acid absorption tower with a pump groove is provided, comprising a purge component 7, the purge component 7 comprising a purge hole 71, a purge groove 72, a purge spring 73, a purge gasket 74 and an unlocking unit 75, the purge hole 71 is opened on the inner wall of the upper end of the demister 5, the air outlet of the purge hole 71 is arranged on the front and rear sides of the corrugated plate 51, so that the purge hole 71 can blow and clean the front and rear sides of the corrugated plate 51 from top to bottom when blowing, the purge groove 72 is opened in the upper support rod 63, the purge gasket 74 is arranged on the upper end of the lifting rod 64, the purge gasket 74 is made of elastic rubber, and when the lifting rod 64 drives the purge gasket 74 to move downward, the purge gasket 74 is in the air The purge gasket 74 is bent under the action of pressure, so that a gap is generated between the purge gasket 74 and the purge groove 72. When the lifting rod 64 drives the purge gasket 74 to move upward, the purge gasket 74 is opened under the extrusion of the lower lifting rod 64 and the upper air pressure and the purge spring 73, so that the purge gasket 74 covers the cross-section of the purge groove 72. When the lifting rod 64 moves upward, the air at the upper end of the purge gasket 74 is blown along the purge groove 72 and the purge hole 71 to the front and rear surfaces of the corrugated plate 51. The purge spring 73 is arranged in the purge groove 72, and the two ends of the purge spring 73 are respectively connected to the upper end of the purge gasket 74 and the inner wall of the purge groove 72, and the unlocking unit 75 is arranged in the locking platform 651.

[0051] See also Figures 9 to 13 Specifically, the unlocking unit 75 includes an unlocking gear 751 and an unlocking rack 752. The unlocking gear 751 is rotatably connected to the locking groove 652. The unlocking gear 751 is meshed with the rear end of the locking rack 654. The unlocking rack 752 is slidably connected to the locking groove 652. The front end of the unlocking rack 752 is meshed with the unlocking gear 751. The right end of the unlocking rack 752 cooperates with the horizontal push block 93. The cooperation here means that when the horizontal push block 93 moves to the left, it can push the unlocking The locking rack 752 moves to the left, and the unlocking rack 752 moves to the left, driving the unlocking gear 751 to rotate. The unlocking gear 751 rotates and drives the locking rack 654 to move to the right to squeeze the locking rack 654, while pulling the left end of the locking rack 654 out of the locking slot 641. At this time, when the cam plate 8 rotates to drive the telescopic block 959 to rotate, when the telescopic block 959 contacts the lifting rod 64, it can only drive the lifting rod 64 to move upward to compress the purge spring 73, and cannot drive the defogger 5 to move upward as a whole.

[0052] The remaining structures are the same as those in Example 2.

[0053] Working principle: when the horizontal push block 93 moves to the left, it can push the unlocking rack 752 to move to the left. The unlocking rack 752 moves to the left and drives the unlocking gear 751 to rotate. The unlocking gear 751 rotates and drives the locking rack 654 to move to the right to squeeze the locking rack 654, while the left end of the locking rack 654 is pulled out of the locking slot 641. At this time, when the cam plate 8 rotates to drive the telescopic block 959 to rotate, when the telescopic block 959 contacts the lifting rod 64, it can only drive the lifting rod 64 to move upward to compress the purge spring 73, and cannot drive the defogger 5 to move upward as a whole. At this time, the lifting rod 64 can slide up and down in the purge slot 72 in the upper support rod 63 with the rotation of the cam plate 8 and the extension block. When the lifting rod 64 slides downward, when the lifting rod When the lifting rod 64 drives the purge gasket 74 to move downward, the purge gasket 74 bends under the action of air pressure, so that a gap is generated between the purge gasket 74 and the purge groove 72. When the lifting rod 64 drives the purge gasket 74 to move upward, the purge gasket 74 opens under the extrusion of the lower lifting rod 64 and the upper air pressure and the purge spring 73, so that the purge gasket 74 covers the cross-section of the purge groove 72. When the lifting rod 64 moves upward, the air at the upper end of the purge gasket 74 is blown along the purge groove 72 and the purge hole 71 to the front and rear surfaces of the corrugated plate 51, so as to purge impurities and water droplets on the corrugated plate 51, so as to prevent the corrugated plate 51 from rusting due to residual water and foreign matter when the concentrated sulfuric acid heat recovery tower is shut down for cleaning and maintenance, thereby affecting the working efficiency of the concentrated sulfuric acid heat recovery tower.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A high-temperature sulfuric acid absorption tower with a pump tank, characterized in that: The invention comprises a pump trough (1), a switching rod (2), a lower tower body (3), an upper tower body (4), a demister (5), a spray component (6), a purge component (7), a cam plate (8), a switching component (9) and a vibration component (101); a lower tower trough (31) is provided in the lower tower body (3); the pump trough (1) is connected to the lower right end of the lower tower trough (31); a water trough (11) is provided in the pump trough (1); the water trough (11) is connected to the lower tower trough (31); the bottom of the water trough (11) is lower than the bottom of the lower tower trough (31); the upper tower body (4) is arranged at the upper end of the lower tower body (3); an upper tower trough (41) is provided in the upper tower body (4); the demister (5) is arranged in the upper tower body (4); the cam plate (8) is arranged in the upper tower trough (41); the switching rod (2) is arranged At the right end of the cam disc (8), the spray component (6) is arranged on the outside of the defogger (5). When the cam disc (8) rotates, the spray component (6) drives the switching rod (2) to move downward and lifts the defogger (5) upward to spray water for cleaning. The switching component (9) is arranged on the left side of the switching rod (2). After the switching rod (2) moves downward into the water tank (11), the rotation radius of the cam disc (8) is increased. The vibration component (101) is arranged on the defogger (5). After the rotation radius of the cam disc (8) is increased, the spray component (6) drives the defogger (5) to vibrate downward and cooperates with the upper tower body (4) to shake the defogger (5) back and forth. The purge component (7) is arranged at the lower right end of the defogger (5). After the rotation radius of the cam disc (8) is increased, the spray component (6) drives the switching rod (2) to move downward and lifts the defogger (5) upward to spray water for cleaning. The switching component (9) is arranged on the left side of the switching rod (2). After the switching rod (2) moves downward into the water tank (11), the rotation radius of the cam disc (8) is increased. The vibration component (101) is arranged on the defogger (5). After the rotation radius of the cam disc (8) is increased, the vibration component (101) drives the defogger (5) to vibrate downward and cooperates with the upper tower body (4) to shake the defogger (5) back and forth. The purge component (7) is arranged at the lower right end of the defogger (5). After the rotation radius of the cam disc (8) is increased, the purge component (7) cooperates with the cam disc (8) to purge air to the bottom of the defogger (5).

2. The high-temperature sulfuric acid absorption tower with a pump tank according to claim 1, characterized in that: The inner diameter of the upper tower trough (41) is greater than the inner diameter of the lower tower trough (31), a diameter reducing chamfer (102) is provided at the connection between the upper tower trough (41) and the lower tower trough (31), and a plurality of corrugated plates (51) are installed on the demister (5).

3. The high-temperature sulfuric acid absorption tower with a pump tank according to claim 2, characterized in that: The spray component (6) comprises a spray pipe (61), a sealing unit (62), an upper support rod (63), a lifting rod (64), a locking unit (65), a movable gear (66), a movable groove (67) and a movable rack (68), wherein the spray pipe (61) is arranged at the upper end of the demister (5), the spray pipe (61) is connected to the pump groove (1), the upper support rod (63) is arranged at the upper right side of the demister (5), the lifting rod (64) is arranged at the lower end of the upper support rod (63), the lifting rod (64) is in contact with the cam plate (8), the locking unit (65) is arranged on the right side of the upper support rod (63), the movable groove (67) The movable rack (68) is provided in the upper tower body (4), the movable rack (68) is slidably connected in the movable groove (67), the lower end of the movable rack (68) is connected to the switching rod (2), a movable gear (66) is provided at the front end of the movable rack (68), the movable gear (66) is meshed with the movable rack (68), the movable gear (66) is rotatably connected in the movable groove (67), a connecting shaft (661) is provided between the movable gear (66) and the cam plate (8), the movable gear (66) is coaxially connected to the cam plate (8) through the connecting shaft (661), and a sealing unit (62) is provided at the front and rear ends of the defogger (5).

4. The high-temperature sulfuric acid absorption tower with a pump tank according to claim 3, characterized in that: The locking unit (65) includes a locking platform (651), a locking slot (652), a locking spring (653) and a locking rack (654). A locking slot (641) is provided on the right side of the lifting rod (64). The locking platform (651) is fixed on the right side of the upper support rod (63). The locking slot (652) is provided in the locking platform (651). The locking rack (654) is slidably connected in the locking slot (652). The left end of the locking rack (654) cooperates with the locking slot (641). The two ends of the locking spring (653) respectively abut against the right end of the locking rack (654) and the inner wall of the locking platform (651).

5. The high-temperature sulfuric acid absorption tower with a pump tank according to claim 3, characterized in that: The sealing unit (62) comprises a sealing groove (621), a sealing baffle (622) and a sealing spring (623); a limiting block (52) is arranged at the front and rear sides of the upper end of the demister (5); a limiting groove (42) is arranged at the front and rear sides of the upper tower groove (41); the limiting block (52) is slidably connected to the limiting groove (42); the sealing groove (621) is arranged at the upper and lower sides of the limiting groove (42); the sealing baffle (622) is slidably connected in the sealing groove (621); the sealing baffle (622) is fixedly connected to the limiting block (52); the sealing spring (623) is arranged in the limiting groove (42); and the two ends of the sealing spring (623) are respectively connected to the lower end of the limiting block (52) and the inner wall of the upper tower body (4).

6. The high-temperature sulfuric acid absorption tower with a pump tank according to claim 5, characterized in that: The switching component (9) comprises an upper push block (91), an upper push chamfer (92), a horizontal push block (93), a limit latch (94) and a push unit (95); a push block groove (911) is provided on the right side of the upper push block (91); a push block spring (912) is provided in the push block groove (911); a push block baffle (21) is provided at the left end of the switching rod (2); the push block baffle (21) is slidably connected to the push block groove (911); two ends of the push block spring (912) are respectively connected to the lower end and the lower end of the push block baffle (21); The upper push block (91) is connected to the inner wall, the upper push block (91) is slidably connected to the right end of the switching rod (2), the upper push chamfer (92) is arranged at the upper end of the upper push block (91), the limit pin (94) is arranged on the left side of the movable rack (68), the horizontal push block (93) is slidably connected to the limit pin (94), the lower end of the upper push block (91) cooperates with the lower tower groove (31), the upper push chamfer (92) cooperates with the lower end of the horizontal push block (93), and the ejection unit (95) is arranged at the right end of the horizontal push block (93).

7. The high-temperature sulfuric acid absorption tower with a pump tank according to claim 6, characterized in that: The ejection unit (95) comprises an ejection baffle (951), an ejection spring (952), an ejection sleeve (953), an extrusion baffle (954), a telescopic slot (955), a telescopic chamfer (956), a telescopic baffle (957), a telescopic spring (958) and a telescopic block (959); the telescopic slot (955) is arranged in the cam plate (8); the ejection sleeve (953) is sleeved on the connecting shaft (661); the ejection baffle (951) is arranged in the moving slot (67); the ejection baffle (951) is connected to the right end of the ejection sleeve (953); the ejection baffle (951) is fitted with the horizontal push block (93); the extrusion baffle (954) is arranged in the telescopic slot (955); the extrusion baffle (954) is arranged in the telescopic slot (955); the extrusion baffle (957) is sleeved on the connecting shaft (661); the ejection baffle (951) is arranged in the moving slot (67); the ejection baffle (951) is connected to the right end of the ejection sleeve (953); the ejection baffle (951) is fitted with the horizontal push block (93); the extrusion baffle (954) is arranged in the telescopic slot (955); the extrusion baffle (957) is sleeved on the connecting shaft (661); the ejection baffle (951) is sleeved on the connecting shaft (661); the ejection baffle (951) is sleeved on the connecting shaft (661); the ejection baffle (951) is sleeved on the right end of the ejection sleeve (953); the ejection baffle (951) is sleeved with the horizontal push block (93); the extrusion baffle (954) is sleeved on the connecting shaft (661); the ejection baffle (951 The plate (954) is connected to the left end of the ejection sleeve (953), the ejection spring (952) is arranged on the outside of the ejection sleeve (953), the two ends of the ejection spring (952) are respectively connected to the left end of the ejection baffle (951) and the inner wall of the upper tower body (4), the telescopic block (959) is slidably connected in the telescopic groove (955), the telescopic block (959) extends outward of the maximum radius edge of the cam disc (8) away from the connecting shaft (661), the telescopic baffle (957) is arranged on the side of the telescopic block (959), the two ends of the telescopic spring (958) are respectively abutted against the end of the telescopic baffle (957) away from the connecting shaft (661) and the inner wall of the cam disc (8), and the telescopic chamfer (956) cooperates with the extrusion baffle (954).

8. The high-temperature sulfuric acid absorption tower with a pump tank according to claim 7, characterized in that: The vibration component (101) comprises a vibration groove (1011), a vibration spring (1012) and a vibration rod (1013); a lower support rod (53) is arranged at the lower right end of the defogger (5); the upper end of the lower support rod (53) cooperates with the telescopic block (959); the vibration groove (1011) is provided on the inner wall of the lower end of the defogger (5); the vibration rod (1013) is slidably connected in the vibration groove (1011); The vibration spring (1012) is arranged in the vibration groove (1011), and the two ends of the vibration spring (1012) are respectively in contact with the front end of the vibration rod (1013) and the inner wall of the defogger (5), and the rear end of the vibration rod (1013) cooperates with the reducing chamfer (102), and the vibration rod (1013) is inserted between the corrugated plates (51), and the vibration rod (1013) is fixedly connected to the corrugated plates (51).

9. The high-temperature sulfuric acid absorption tower with a pump tank according to claim 8, characterized in that: The purge component (7) includes a purge hole (71), a purge groove (72), a purge spring (73), a purge gasket (74) and an unlocking unit (75), wherein the purge hole (71) is provided on the inner wall of the upper end of the defogger (5), the purge groove (72) is provided in the upper support rod (63), the purge gasket (74) is provided on the upper end of the lifting rod (64), the purge spring (73) is provided in the purge groove (72), the two ends of the purge spring (73) are respectively connected to the upper end of the purge gasket (74) and the inner wall of the purge groove (72), and the unlocking unit (75) is provided in the locking platform (651).

10. The high-temperature sulfuric acid absorption tower with a pump tank according to claim 9, characterized in that: The unlocking unit (75) comprises an unlocking gear (751) and an unlocking rack (752); the unlocking gear (751) is rotatably connected in the locking groove (652); the unlocking gear (751) is meshed with the rear end of the locking rack (654); the unlocking rack (752) is slidably connected in the locking groove (652); the front end of the unlocking rack (752) is meshed with the unlocking gear (751); and the right end of the unlocking rack (752) cooperates with the horizontal push block (93).

Images