An integrated device for efficient conversion of sulfur resources and recycling of tail gas

Abstract

The present invention belongs to the fields of petrochemicals, electric power, and environmental protection technology, and discloses an integrated device for efficient conversion of sulfur resources and recycling of tail gas, comprising a reaction tower for treating sulfur resources, a spray tower arranged above the reaction tower for treating tail gas discharged from the reaction tower, and a purification box arranged above the spray tower for treating tail gas discharged from the spray tower. The present invention realizes automatic replacement and disassembly of the multi-stage filter element through the coordinated design of the filter box, drainage channel, disassembly channel, multi-stage filter element, and replacement mechanism, which facilitates the normal filtration effect of wastewater, eliminates the need to shut down the equipment, reduces the labor intensity of operators, improves the efficiency of filter element replacement, is environmentally friendly, avoids the cumbersome operation of removing the filter screen, reduces the wastewater treatment efficiency, and generates vibration when the filter screen is removed from the filter box, causing sludge and impurities attached to the filter surface to fall off to the outside of the filter box, polluting the environment and having poor environmental performance.

Description

Technical Field

[0001] The present invention belongs to the fields of petrochemical industry, electric power and environmental protection technology, and specifically is an integrated device for efficient conversion of sulfur resources and recycling of tail gas. Background Art

[0002] Industrial exhaust gases generated in the fields of petrochemicals, electricity, and environmental protection contain a large amount of sulfur-containing substances. Sulfur-containing substances have become the core treatment target of sulfur resource conversion technology due to their large emissions, strong toxicity, and easy formation of acid rain. Efficient conversion of sulfur resources refers to the conversion of sulfur-containing substances (such as sulfur dioxide, hydrogen sulfide, elemental sulfur, etc.) into high-value-added products or recyclable resources in a highly selective and high-yield manner through technological innovation and process optimization, while achieving environmental friendliness and maximizing economic benefits.

[0003] In the existing technology, when efficiently converting sulfur resources, acid gas (H2S) is usually first introduced into a combustion furnace for partial combustion to generate SO2. After mixing with the remaining H2S, it is transported to a multi-stage Claus reactor for catalytic generation of sulfur. The sulfur is recovered through condensation separation. Subsequently, the tail gas of unreacted sulfur in the Claus reactor is passed into a spray desulfurization tower (wet desulfurization) for further desulfurization. The desulfurized gas is purified and then discharged. At the same time, wastewater needs to be discharged from the spray desulfurization tower regularly to maintain system stability. After discharge, the wastewater needs to be pretreated. The wastewater is passed into a filter box to filter large particles of impurities in the wastewater through a filter screen or grid to protect subsequent equipment. The pretreated wastewater is then transported to a triple box for neutralization, precipitation, flocculation and solid-liquid separation.

[0004] A Chinese patent in the prior art discloses an SBR treatment device for desulfurization wastewater from a thermal power plant (publication number: CN211946701U), the main structure of which includes a bottom plate and a filter fixing frame; a filter box, the bottom of the filter box is arranged on the top of the bottom plate, a filter is arranged inside the filter fixing frame, a filter push plate is arranged on one side of the front of the filter fixing frame, a slide rod is fixedly connected to one side of the filter push plate, the slide rod passes through the filter box and extends to the outside of the filter box, one end of the slide rod extending to the outside of the filter box is movably connected to a push rod through a rotating shaft, a clamping block shell is fixedly connected to one side of the filter box, a shell slide groove is arranged on one side of the front of the clamping block shell, and the clamping block shell is fixedly connected to the filter box. A spring push block is provided inside, and the spring push block passes through the sliding groove of the shell and extends to the outside of the clamp block shell. The end of the spring push block extending to the outside of the clamp block shell is fixedly connected to the push block connecting plate, and the top of the spring push block is fixedly connected to the positioning rod, and the positioning rod passes through the clamp block shell and extends to the top of the clamp block shell. The end of the positioning rod extending to the top of the clamp block shell is fixedly connected to the limiting block, and the outer surface of the positioning rod is sleeved with a spring; a movable box, the bottom of the movable box is arranged at the top of the filter box; an SBR treatment box, the bottom of the SBR treatment box is arranged at the top of the movable box; a limestone slurry water tank, the bottom of the limestone slurry water tank is arranged at the top of the SBR treatment box.

[0005] In actual use, the above patent pulls the push block connecting plates to both sides, so that the spring push blocks on both sides can slide inside the clamping block shell, and then rotates the push rod so that the push rod and the slide rod are on the same horizontal line, and pushes the push rod, so that the filter push plate pushes the filter to move, thereby realizing the removal of the filter. However, there are still corresponding disadvantages in actual use: when the above patent is used, the removal and installation process of the filter is time-consuming, and the operation is cumbersome when removing and installing the filter, and the equipment needs to be shut down and stopped, which reduces the efficiency of wastewater treatment and easily affects the overall operation effect of sulfur resource conversion and exhaust gas recycling. When the filter is removed from the filter box, the sludge impurities attached to the filter surface are easily vibrated during removal, causing the sludge impurities attached to the filter surface to fall off to the outside of the filter box, causing pollution to the environment, and poor environmental protection. Summary of the Invention

[0006] Technical problems solved

[0007] In order to solve the problems raised in the above-mentioned background technology, the present invention provides an integrated device for efficient conversion of sulfur resources and recycling of tail gas, which has the advantages of convenient operation, automatic replacement and removal of filter elements, and good environmental protection. Through the coordinated design of the filter box, drainage channel, disassembly and assembly channel, multi-stage filter element, replacement mechanism and other structures, the multi-stage filter element can be replaced in time to ensure the normal filtering effect of wastewater. There is no need to shut down the equipment, which helps to improve the efficiency of wastewater treatment, and automatically discharges clogged multi-stage filter elements, reducing the operating difficulty and labor intensity of operators, improving the replacement efficiency of filter elements, and having good environmental protection effects.

[0008] Technical Solution

[0009] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an integrated device for efficient conversion of sulfur resources and recycling of tail gas, comprising a reaction tower for treating sulfur resources, a spray tower arranged above the reaction tower for treating tail gas discharged from the reaction tower, a purification box arranged above the spray tower for treating tail gas discharged from the spray tower, a recovery pipeline arranged between the reaction tower and the left side of the purification box for recycling the purified tail gas, a triple box arranged below the reaction tower for treating spray wastewater, a filter box arranged on the right side of the reaction tower for pre-treating the wastewater in the spray tower and introducing it into the triple box, a drainage channel provided at the lower right part of an inner cavity of the filter box, a disassembly channel provided at the upper right part of an inner cavity of the filter box, two multi-stage filter elements arranged in the filter box that are adapted to the drainage channel and the disassembly channel respectively, and a replacement mechanism provided on the right side of the inner cavity of the filter box for replacing and disassembling the two multi-stage filter elements.

[0010] In the above technical solution, preferably, the replacement mechanism includes a mounting plate that rotates on the right side of the inner cavity of the filter box, two mounting channels symmetrically provided on the right side wall of the mounting plate on the upper and lower sides, a mounting shell that moves left and right in the mounting channel, two-section spring rods for driving the mounting shell to move right are distributed at the front and back of the left side of the inner cavity of the mounting channel, a limiting mechanism arranged on the upper part of the inner cavity of the filter box and on the mounting shell, a mounting slot provided on the right side wall of the mounting shell, a collection frame detachably mounted in the mounting slot, a discharge channel provided on the left side of the inner cavity of the mounting slot, a scraping rod that moves up and down on the left side wall of the mounting shell for cleaning dirt attached to the filter surface of the multi-stage filter element, a linkage mechanism provided on the front and rear sides of the mounting shell for driving the scraping rod to move up and down, and an alarm mechanism provided on the scraping rod;

[0011] Among them, a driving motor for driving the mounting plate to rotate is fixedly installed in the middle of the right side wall of the filter box, a water level sensor is fixedly installed in the middle of the left side wall of the mounting plate, the multi-stage filter element is placed in the inner cavity of the mounting shell, and the outer surface of the multi-stage filter element is tightly fitted with the inner cavity of the mounting shell. The multi-stage filter element is composed of an outer frame, an outer filter element, a middle filter element and an inner filter element. The outer filter element, the middle filter element and the inner filter element are equidistantly fixed in the inner cavity of the outer frame.

[0012] In the above technical solution, preferably, an annular groove is opened on the right side of the inner cavity of the filter box, the left side wall of the mounting plate is fitted with the left side of the inner cavity of the annular groove, and the outer rings of the drainage channel and the disassembly and assembly channel on the right side of the inner cavity of the filter box are fixed with sealing rings that fit with the right side wall of the mounting plate.

[0013] In the above technical solution, preferably, a placement groove adapted to the scraper rod is opened on the left side of the inner cavity of the installation groove, and a docking groove for covering the discharge channel is opened on the left side of the inner cavity of the installation groove away from the placement groove.

[0014] In the above technical solution, preferably, the limiting mechanism includes an annular assembly groove provided on the left side of the outer ring wall of the mounting plate, two clamping blocks with torsional rotation hingedly connected to the upper and lower sides of the inner cavity of the annular assembly groove, a slide groove provided on the left side of the outer surface of the mounting shell, a clamping groove that moves left and right in the slide groove, a limiting groove provided on the right side wall of the mounting shell, a limiting block that moves left and right in the limiting groove, a connecting rod for connecting the clamping groove and the limiting block, and a vertical rod vertically fixed to the front side of the top of the inner cavity of the annular groove;

[0015] Among them, the blocking block is movably connected to the inner cavity of the blocking slot, the lower part of the vertical rod is movably connected to the left side of the blocking block, the left side wall of the limit block is movably connected to the left side of the inner cavity of the limit slot, and the left side movable sleeve of the connecting rod is provided with a contraction spring, and the left and right ends of the contraction spring are respectively fixedly connected to the left side wall of the blocking slot and the right side of the inner cavity of the sliding slot.

[0016] In the above technical solution, preferably, the linkage mechanism includes a screw symmetrically and vertically rotatably mounted on the left side of the front and rear side walls of the mounting shell, a guide wheel fixedly sleeved on the top of the screw, a guide rail laterally fixedly mounted on the top surface of the inner cavity of the mounting channel, a slider that moves up and down on the left side of the front and rear side walls of the mounting shell, a support rod that laterally penetrates the slider, a compression spring movably sleeved on the right side of the support rod, and two buffer spring rods distributed front and back on the right side of the inner cavity of the mounting channel;

[0017] Among them, the guide wheel is movably connected to the guide rail, the slider is threadedly connected to the screw, the left end of the support rod is fixedly connected to the scraping surface of the scraping rod, the right end of the support rod is movably connected to the right side of the inner cavity of the mounting channel, and the left output end of the buffer spring rod is fixedly connected to the side wall of the mounting shell.

[0018] In the above technical solution, preferably, the alarm mechanism includes two touch blocks distributed on the left and right sides of the scraper rod cavity, a signal sensor with a built-in power supply fixed to the bottom surface of the scraper rod cavity, and an alarm sounder fixed to the rear of the right side wall of the filter box;

[0019] Among them, two spring seats are fixedly installed symmetrically on the front and back of the left side of the inner cavity of the scraper rod, and a movable plate is fixedly installed on the right end output shaft of the spring seat. The left side wall of one touch block is fixedly connected to the right side wall of the movable plate, and the other touch block is fixedly connected to the right side of the inner cavity of the scraper rod. The two touch blocks are movably connected, and two cross bars are fixedly installed symmetrically on the front and back of the movable plate. The right end of the cross bar penetrates to the outside of the inner cavity of the scraper rod, and the right end of the cross bar is movably connected to the left side wall of the mounting shell.

[0020] In the above technical solution, preferably, the reaction tower includes a burner, a Claus reactor and a condenser, the burner is arranged in the lower part of the inner cavity of the reaction tower, the Claus reactor is arranged in the inner cavity of the reaction tower above the burner, the condenser is connected to the exhaust end of the Claus reactor for separating liquid sulfur from the reacted gas through the condenser and transporting it to an external liquid sulfur pool, and an input pipeline for transporting acidic gas into the burner is provided on the lower left part of the outer surface of the reaction tower, and a delivery pump for transporting the gas separated by the condenser into the spray tower is fixedly installed on the lower left part of the outer surface of the spray tower.

[0021] In the above technical solution, preferably, the recovery pipeline includes a recovery pump, a short recovery tube, a long recovery tube, and a flow control valve. The recovery pump is fixedly installed on the left side of the outer surface of the purification box. The short recovery tube is used to connect the inner cavity of the purification box with the air inlet port of the recovery pump. The two ends of the long recovery tube are respectively connected to the air outlet port of the recovery pump and the input pipeline. The flow control valve is arranged on the long recovery tube.

[0022] In the above technical solution, preferably, an injection pump is fixedly installed on the left side wall of the filter box, the water outlet port of the injection pump is connected to the upper left part of the inner cavity of the filter box, and the inlet port of the injection pump is connected to the bottom of the inner cavity of the spray tower through a drain pipe.

[0023] Beneficial effects

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] When the filter element is blocked, the waste water in the filter box gathers at the position of the water level sensor, and the water level sensor sends a signal to drive the motor to operate once, so that the motor drives the mounting plate to rotate half a circle. The rotation of the mounting plate half a circle can drive the two mounting shells to move and exchange the positions of the two multi-stage filter elements, so that the unblocked multi-stage filter element is exchanged to the drainage channel. The multi-stage filter element can be exchanged in time to ensure the normal filtering effect of the waste water without shutting down the equipment, which is conducive to improving the efficiency of wastewater treatment. The blocked multi-stage filter element is exchanged to the disassembly channel. During the process of the mounting plate rotating half a circle, the mounting plate interacts with the limit mechanism, so that the limit of the mounting shell moving to the disassembly channel can be cancelled. Thereafter, the mounting shell is driven by the elastic force of the two-stage spring rod. The shell moves out of the disassembly and assembly channel, and the installation shell can drive the scraper rod to move downward through the linkage mechanism during the movement. The downward movement of the scraper rod can scrape off the impurities attached to the filter surface of the multi-stage filter element, so that the scraped impurities fall into the collection frame through the discharge channel for collection, and can automatically discharge the clogged multi-stage filter element, reducing the operating difficulty and labor intensity of the operator, improving the replacement efficiency of the filter element, and having good environmental protection. It solves the problem that the disassembly and installation process of the filter screen in the prior art is time-consuming, the operation is cumbersome when disassembling and installing the filter screen, and the equipment needs to be shut down and stopped, which reduces the efficiency of wastewater treatment and is easy to affect the overall operation effect of sulfur resource conversion and exhaust gas recycling. When the filter screen is disassembled and taken out of the filter box, the sludge impurities attached to the filter surface of the filter screen are easily affected by the vibration generated during removal, resulting in the sludge impurities attached to the filter surface falling off to the outside of the filter box to pollute the environment, and the problem of poor environmental protection.

[0026] 2. The present invention is designed with the coordination of structures such as the scraper rod and the alarm mechanism. When the elastic force of the two-stage spring rod drives the mounting shell to move the clogged multi-stage filter element to the outside of the disassembly and assembly channel, the right end of the support rod contacts and squeezes the right side of the inner cavity of the mounting channel, so that the scraping surface of the scraper rod is separated from the filter surface of the multi-stage filter element. Driven by the elastic force of the spring seat, the movable plate moves and drives the two touch blocks to fit together. After the two touch blocks fit together, the signal sensor operates to send an alarm signal to the alarm sounder. The alarm signal sent by the alarm sounder can prompt the operator to replace the clogged multi-stage filter element in time, avoiding affecting the normal replacement of subsequent filter elements of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the present invention;

[0028] Figure 2 It is a right side structural schematic diagram of the filter box of the present invention;

[0029] Figure 3 This is a front cross-sectional structural diagram of the filter box of the present invention;

[0030] Figure 4 This is a left-side structural schematic diagram of the mounting plate and water level sensor of the present invention;

[0031] Figure 5 It is a right side structural schematic diagram of the mounting plate, mounting channel, placement slot, and docking slot of the present invention;

[0032] Figure 6 It is a front cross-sectional structural schematic diagram of the mounting plate of the present invention;

[0033] Figure 7 It is a partial cross-sectional structural diagram of the mounting plate, vertical rod and annular assembly groove of the present invention;

[0034] Figure 8 It is a partial cross-sectional structural diagram of the mounting plate, mounting shell, annular assembly groove, and limiting mechanism of the present invention;

[0035] Figure 9 It is a partial front cross-sectional structural diagram of the limiting mechanism of the present invention;

[0036] Figure 10 This is a schematic structural diagram of the mounting housing, multi-stage filter element, linkage mechanism, two-stage spring rod, scraping rod, and buffer spring rod of the present invention;

[0037] Figure 11 This is an exploded view of the structure of the installation shell, multi-stage filter element, and collection frame of the present invention;

[0038] Figure 12 It is a partial front cross-sectional structural diagram of the scraping rod and the alarm mechanism of the present invention;

[0039] Figure 13 It is a partial structural exploded view of the alarm mechanism of the present invention.

[0040] In the figure: 1. reaction tower; 2. spray tower; 3. purification box; 4. recovery pipeline; 5. triple box; 6. filter box; 7. drainage channel; 8. disassembly channel; 9. multi-stage filter element; 10. replacement mechanism; 101. installation plate; 102. installation channel; 103. installation shell; 104. installation slot; 105. collection frame; 106. discharge channel; 107. scraper rod; 108. drive motor; 109. water level sensor; 1010. two-stage spring rod; 11. limit mechanism; 111. annular assembly groove; 112. card Block; 113, slide; 114, card slot; 115, limit slot; 116, limit block; 117, connecting rod; 118, vertical rod; 119, contraction spring; 12, linkage mechanism; 121, screw; 122, guide wheel; 123, guide rail; 124, slider; 125, support rod; 126, compression spring; 127, buffer spring rod; 13, alarm mechanism; 131, touch block; 132, signal sensor; 133, alarm sounder; 134, movable plate; 135, cross bar; 14, placement slot; 15, docking slot. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 efforts are within the scope of protection of the present invention.

[0042] like Figures 1 to 13 As shown, the present invention provides an integrated device for efficient conversion of sulfur resources and recycling of tail gas, comprising a reaction tower 1 for treating sulfur resources, a spray tower 2 arranged above the reaction tower 1 for treating the tail gas discharged from the reaction tower 1, a purification box 3 arranged above the spray tower 2 for treating the tail gas discharged from the spray tower 2, a recovery pipeline 4 arranged on the left side of the reaction tower 1 and the purification box 3 for recycling the purified tail gas, a triple box 5 arranged below the reaction tower 1 for treating spray wastewater, a filter box 6 arranged on the right side of the reaction tower 1 for pre-treating the wastewater in the spray tower 2 and introducing it into the triple box 5, and a filter box 6 provided in the inner cavity of the filter box 6. A drainage channel 7 at the lower right side, a disassembly channel 8 is provided at the upper right side of the inner cavity of the filter box 6, two multi-stage filter elements 9 are provided in the filter box 6 and are adapted to the drainage channel 7 and the disassembly channel 8 respectively, and a replacement mechanism 10 is provided on the right side of the inner cavity of the filter box 6 for replacing and disassembling the two multi-stage filter elements 9; an injection pump is fixedly installed on the left side wall of the filter box 6, and the water outlet port of the injection pump is connected to the upper left side of the inner cavity of the filter box 6, and the inlet port of the injection pump is connected to the bottom of the inner cavity of the spray tower 2 through a drain pipe; wherein, the spray tower 2, the purification box 3 and the triple box 5 are all prior art, and their structures and principles are not repeated here;

[0043] During use, the acidic waste gas generated in industrial production is transported to the reaction tower 1 for post-combustion catalysis, and the sulfur is recovered through condensation separation. The tail gas of unreacted sulfur in the reaction tower 1 enters the spray tower 2 for further wet spray desulfurization. The desulfurized gas is purified by the purification box 3 and then partially purified by the recovery pipeline 4 and transported to the reaction tower 1 to participate in the combustion reaction. The gas can be recycled and reused, which is convenient for adjusting the oxygen content during combustion. The wastewater generated during spray desulfurization is regularly transported to the filter box 6 through the injection pump, and the large particles of impurities in the wastewater are filtered through the multi-stage filter element 9. After that, it flows into the triple box 5 for neutralization, precipitation, flocculation and solid-liquid separation.

[0044] The replacement mechanism 10 includes a mounting plate 101 rotating on the right side of the inner cavity of the filter box 6, two mounting channels 102 symmetrically provided on the upper and lower sides of the right side wall of the mounting plate 101, a mounting shell 103 moving left and right in the mounting channel 102, two-section spring rods 1010 for driving the mounting shell 103 to move rightward are distributed at the front and back of the left side of the inner cavity of the mounting channel 102, a limiting mechanism 11 provided on the upper part of the inner cavity of the filter box 6 and on the mounting shell 103, a mounting groove 104 provided on the right side wall of the mounting shell 103, a collection frame 105 detachably mounted in the mounting groove 104, a discharge channel 106 provided on the left side of the inner cavity of the mounting groove 104, a scraping rod 107 moving up and down on the left side wall of the mounting shell 103 for cleaning dirt attached to the filter surface of the multi-stage filter element 9, a linkage mechanism 12 provided on the front and back sides of the mounting shell 103 for driving the scraping rod 107 to move up and down, and an alarm mechanism 13 provided on the scraping rod 107;

[0045] Among them, a driving motor 108 for driving the mounting plate 101 to rotate is fixedly installed in the middle of the right side wall of the filter box 6, and a water level sensor 109 is fixedly installed in the middle of the left side wall of the mounting plate 101. The multi-stage filter element 9 is placed in the inner cavity of the mounting shell 103, and the outer surface of the multi-stage filter element 9 is tightly fitted with the inner cavity of the mounting shell 103. The multi-stage filter element 9 is composed of an outer frame, an outer filter element, a middle filter element and an inner filter element. The outer filter element, the middle filter element and the inner filter element are equidistantly fixed in the inner cavity of the outer frame. In the figure, an annular groove is provided on the right side of the inner cavity of the filter box 6, and the left side wall of the mounting plate 101 is fitted with the left side of the inner cavity of the annular groove. The outer rings of the drainage channel 7 and the disassembly and assembly channel 8 on the right side of the inner cavity of the filter box 6 are fixed with sealing rings fitted with the right side wall of the mounting plate 101, and a placement groove 14 adapted to the scraping rod 107 is provided on the left side of the inner cavity of the mounting groove 104. A docking groove 15 for closing the discharge channel 106 is provided on the side of the left side of the inner cavity of the mounting groove 104 away from the placement groove 14.

[0046] When in use, the water flow of the injection pump is lower than the drainage flow of the drainage channel 7. When the multi-stage filter element 9 at the drainage channel 7 is blocked, the waste water in the filter box 6 gathers at the water level sensor 109 position, and the water level sensor 109 sends a signal to make the drive motor 108 operate once. The drive motor 108 drives the mounting plate 101 to rotate half a circle. The mounting plate 101 rotates half a circle to drive the two mounting shells 103 to move and swap the positions of the two multi-stage filter elements 9, so that the unblocked multi-stage filter element 9 is swapped to the drainage channel 7. The multi-stage filter element 9 can be swapped in time to ensure the normal filtering effect of the waste water without shutting down the equipment, which helps to improve the efficiency of wastewater treatment. The blocked multi-stage filter element 9 is swapped to the disassembly and assembly channel 8. During the process of the mounting plate 101 rotating half a circle, it interacts with the limit mechanism 11 to make The limit of the installation shell 103 moved to the disassembly channel 8 is cancelled, and then the installation shell 103 is moved to the outside of the disassembly channel 8 under the elastic drive of the two-stage spring rod 1010. During the movement, the installation shell 103 can drive the scraping rod 107 to move downward through the linkage mechanism 12. The downward movement of the scraping rod 107 can scrape off the impurities attached to the filter surface of the multi-stage filter element 9, so that the scraped impurities fall into the collection frame 105 through the discharge channel 106 for collection, and can automatically discharge the clogged multi-stage filter element 9, reducing the operating difficulty and labor intensity of the operator, improving the replacement efficiency of the filter element, and having good environmental protection. It avoids the sludge impurities attached to the filter surface of the filter screen being easily affected by the vibration generated during the removal when the filter screen is disassembled and taken out of the filter box 6, causing the sludge impurities attached to the filter surface to fall off to the outside of the filter box 6 to pollute the environment, and has poor environmental protection.

[0047] It should be noted that when the right side of the mounting shell 103 is moved outside the disassembly and assembly channel 8, the scraping surface of the scraping rod 107 can be separated from the filter surface of the multi-stage filter element 9 under the interaction between the linkage mechanism 12 and the inner cavity of the mounting channel 102, and the alarm mechanism 13 can be operated to issue an alarm to prompt the operator to replace the clogged multi-stage filter element 9 in time to avoid affecting the normal operation of the equipment.

[0048] like Figure 7 、 Figure 8 、 Figure 9 As shown, the limiting mechanism 11 includes an annular assembly groove 111 provided on the left side of the outer ring wall of the mounting plate 101, two clamping blocks 112 with torsional rotation that are butt-hinged on the upper and lower sides of the inner cavity of the annular assembly groove 111, a sliding groove 113 provided on the left side of the outer surface of the mounting shell 103, a clamping groove 114 that moves left and right in the sliding groove 113, a limiting groove 115 provided on the right side wall of the mounting shell 103, a limiting block 116 that moves left and right in the limiting groove 115, a connecting rod 117 for connecting the clamping groove 114 and the limiting block 116, and a vertical rod 118 vertically fixed to the front side of the top of the inner cavity of the annular groove;

[0049] Among them, the blocking block 112 is movably connected to the inner cavity of the blocking slot 114, the lower part of the vertical rod 118 is movably connected to the left side of the blocking block 112, the left side wall of the limit block 116 is movably connected to the left side of the inner cavity of the limit slot 115, and the left side movable sleeve of the connecting rod 117 is provided with a contraction spring 119, and the left and right ends of the contraction spring 119 are respectively fixedly connected to the left side wall of the blocking slot 114 and the right side of the inner cavity of the slide slot 113.

[0050] When in use, when the mounting plate 101 rotates half a circle, the two mounting shells 103 are driven to rotate circumferentially to exchange the positions of the two multi-stage filter elements 9. In the process of exchanging the blocked multi-stage filter element 9 to the disassembly and assembly channel 8, the mounting shell 103 drives the block 112 to move when rotating circumferentially. After the left side of the block 112 contacts and squeezes the lower part of the vertical rod 118, the right end of the block 112 can be moved upward. At the same time, the card slot 114 is driven to move to the right under the pulling force of the contraction spring 119, so that the block 112 can be disengaged from the card slot 114, and the mounting shell 103 can be cancelled. 03's limiting effect makes it easy for the installation shell 103 to drive the clogged multi-stage filter element 9 to move to the outside of the disassembly and assembly channel 8 under the elastic drive of the two-stage spring rod 1010. When the operator places the new multi-stage filter element 9 in the installation shell 103 and pushes the installation shell 103 to the leftmost side of the installation channel 102, the limit block 116 is pressed to move to the left and fit into the left side of the inner cavity of the limit groove 115. When the limit block 116 moves to the left, the connecting rod 117 drives the card slot 114 to move to the left, so that the card block 112 can be clamped into the card slot 114 again to limit the installation shell 103.

[0051] like Figure 10 As shown, the linkage mechanism 12 includes a screw rod 121 symmetrically mounted vertically on the left side of the front and rear side walls of the mounting housing 103, a guide wheel 122 fixedly mounted on the top of the screw rod 121, a guide rail 123 fixedly mounted laterally on the top surface of the inner cavity of the mounting channel 102, a slider 124 that moves up and down on the left side of the front and rear side walls of the mounting housing 103, a support rod 125 that laterally penetrates the slider 124, a compression spring 126 movably mounted on the right side of the support rod 125, and two buffer spring rods 127 distributed front and back on the right side of the inner cavity of the mounting channel 102;

[0052] Among them, the guide wheel 122 is movably connected to the guide rail 123, the slider 124 is threadedly connected to the screw 121, the left end of the support rod 125 is fixedly connected to the scraping surface of the scraping rod 107, the right end of the support rod 125 is movably connected to the right side of the inner cavity of the installation channel 102, and the left output end of the buffer spring rod 127 is fixedly connected to the side wall of the installation shell 103.

[0053] When in use, when the elastic force of the two-stage spring rod 1010 drives the mounting shell 103 to move out of the disassembly channel 8, the mounting shell 103 moves and drives the scraping rod 107 and the screw 121 to move. When the scraping rod 107 moves out of the placement groove 14, and the mounting shell 103 drives the discharge channel 106 to move out of the docking groove 15, the screw 121 moves and drives the guide wheel 122 to contact the guide rail 123. After that, the screw 121 rotates by itself during the movement process through the action of the guide wheel 122 and the guide rail 123. The rotation of the screw 121 drives the slider 124 to drive the scraping rod 107 to move downward to scrape and clean the impurities attached to the filter surface of the multi-stage filter element 9. At the same time, through the action of the buffer spring rod 127, the mounting shell 103 can move out of the disassembly channel 8 at a uniform speed, reducing the vibration effect, which helps the scraped impurities to stably pass through the discharge channel 106 and fall into the collection frame 105.

[0054] like Figure 12 、 Figure 13 As shown, the alarm mechanism 13 includes two touch blocks 131 distributed on the left and right sides of the inner cavity of the scraper rod 107, a signal sensor 132 with a built-in power supply fixed to the bottom surface of the inner cavity of the scraper rod 107, and an alarm sounder 133 fixed to the rear of the right side wall of the filter box 6;

[0055] Among them, two spring seats are fixedly installed symmetrically on the left side of the inner cavity of the scraper rod 107, and a movable plate 134 is fixedly installed on the output shaft at the right end of the spring seat. The left side wall of a touch block 131 is fixedly connected to the right side wall of the movable plate 134, and the other touch block 131 is fixedly connected to the right side of the inner cavity of the scraper rod 107. The two touch blocks 131 are movably connected, and two cross bars 135 are fixedly installed symmetrically on the front and back of the movable plate 134. The right end of the cross bar 135 penetrates to the outside of the inner cavity of the scraper rod 107, and the right end of the cross bar 135 is movably connected to the left side wall of the mounting shell 103.

[0056] During use, when the two-stage spring rod 1010 elastically drives the mounting shell 103 to move the clogged multi-stage filter element 9 to the outside of the disassembly and assembly channel 8, the right end of the support rod 125 contacts and squeezes the right side of the inner cavity of the mounting channel 102, so that the scraping surface of the scraping rod 107 is separated from the filter surface of the multi-stage filter element 9. Driven by the elastic force of the spring seat, the movable plate 134 moves to drive the two touch blocks 131 to fit together. After the two touch blocks 131 fit together, the signal sensor 132 operates to send an alarm signal to the alarm sounder 133. The alarm signal sent by the alarm sounder 133 can prompt the operator to replace the clogged multi-stage filter element 9 in time.

[0057] like Figure 1As shown, the reaction tower 1 includes a burner, a Claus reactor, and a condenser (not shown). The burner, Claus reactor, and condenser are all conventional technologies, and their structures and principles are not further described here. The burner is disposed in the lower portion of the inner cavity of the reaction tower 1, and the Claus reactor is disposed in the inner cavity of the reaction tower 1 above the burner. The condenser is connected to the exhaust port of the Claus reactor for separating liquid sulfur from the reacted gas through the condenser and delivering it to an external liquid sulfur pool. In addition, an input pipe for delivering acid gas to the burner is provided on the lower left portion of the outer surface of the reaction tower 1. A delivery pump for delivering the gas separated by the condenser to the spray tower 2 is fixedly mounted on the lower left portion of the outer surface of the spray tower 2.

[0058] During use, the acid gas generated during the industrial production process is transported to the combustion furnace through an external gas supply device through a labor input pipeline. By controlling the air distribution ratio of the combustion furnace, about 1 / 3 of the H2S in the combustion furnace is burned to produce SO2. The remaining H2S and SO2 are mixed in a ratio of 2:1. The mixed gas reacts in the multi-stage catalytic bed of the Claus reactor. The liquid sulfur is separated from the gas after the reaction through a condenser. After sulfur recovery, it enters an external liquid sulfur pool. The unreacted sulfide (H2S / SO2) enters the spray tower 2 for spray treatment to remove residual SO2. The desulfurized gas enters the purification box 3 for purification.

[0059] like Figure 1 As shown, the recovery pipeline 4 includes a recovery pump, a short recovery tube, a long recovery tube, and a flow control valve. The recovery pump is fixedly installed on the left side of the outer surface of the purification box 3. The short recovery tube is used to connect the inner cavity of the purification box 3 with the air inlet port of the recovery pump. The two ends of the long recovery tube are respectively connected to the air outlet port and the input pipeline of the recovery pump. The flow control valve is set on the long recovery tube.

[0060] When in use, part of the purified gas in the purification box 3 is transported to the input pipe through the flow control valve by the recovery pump and mixed into the combustion furnace, so that the gas can be recycled and reused, which is convenient for adjusting the oxygen content during combustion.

[0061] The working principle and use process of the present invention:

[0062] During use, the acid gas generated during industrial production is first delivered to the combustion furnace through an external gas supply device through an input pipeline. By controlling the air distribution ratio of the combustion furnace, about 1 / 3 of the H2S in the combustion furnace is burned to produce SO2. The remaining H2S and SO2 are mixed in a ratio of 2:1. The mixed gas reacts in the multi-stage catalytic bed of the Claus reactor. The gas after the reaction is separated into liquid sulfur through a condenser. After sulfur recovery, it enters an external liquid sulfur pool. The tail gas of unreacted sulfur enters the spray tower 2 for spray treatment to remove residual SO2. The desulfurized gas enters the purification box 3 for purification. A recovery pump is used to deliver part of the purified gas in the purification box 3 through a flow control valve to the input pipeline and mix it with the combustion furnace. The gas can be recycled and reused, which is convenient for adjusting the oxygen content during combustion. The wastewater generated when the spray tower 2 sprays the tail gas of unreacted sulfur for desulfurization is regularly delivered to the filter box 6 through an injection pump. The large particles of impurities in the wastewater are filtered through a multi-stage filter element 9 and then flow into the triple box 5 for neutralization, precipitation, flocculation and solid-liquid separation.

[0063] The water flow of the injection pump is lower than the drainage flow of the drainage channel 7. When the multi-stage filter element 9 at the drainage channel 7 is blocked, the waste water in the filter box 6 gathers at the water level sensor 109. The water level sensor 109 sends a signal to make the drive motor 108 operate once. The drive motor 108 drives the mounting plate 101 to rotate half a circle. The mounting plate 101 rotates half a circle to drive the two mounting shells 103 to move and swap the positions of the two multi-stage filter elements 9. The unblocked multi-stage filter element 9 is swapped to the drainage channel 7. The multi-stage filter element 9 can be swapped in time, and the blocked multi-stage filter element 9 is swapped to the disassembly channel 8. When the blocked multi-stage filter element 9 is When the core 9 is replaced to the disassembly channel 8, the mounting shell 103 rotates circumferentially and drives the block 112 to move. After the left side of the block 112 contacts and squeezes the lower part of the vertical rod 118, the right end of the block 112 can be moved upward. At the same time, the card slot 114 is driven to move to the right under the pulling force of the contraction spring 119, so that the block 112 can be disengaged from the card slot 114, and the limiting effect on the mounting shell 103 can be cancelled. After that, when the mounting shell 103 moves to the disassembly channel 8, the elastic force of the two-stage spring rod 1010 drives the mounting shell 103 to move out of the disassembly channel 8, and the movement of the mounting shell 103 drives the scraping rod 107 and The screw 121 moves, and when the scraping rod 107 moves to the outside of the placement groove 14, and the installation shell 103 drives the unloading channel 106 to move to the outside of the docking groove 15, the screw 121 moves to drive the guide wheel 122 to contact the guide rail 123, and then the screw 121 rotates by the action of the guide wheel 122 and the guide rail 123 during the movement. The self-rotation of the screw 121 drives the slider 124 to drive the scraping rod 107 to move downward to scrape and clean the impurities attached to the filter surface of the multi-stage filter element 9. At the same time, through the action of the buffer spring rod 127, the installation shell 103 can be made to move at a uniform speed to the outside of the disassembly channel 8, reducing the vibration effect, which is conducive to scraping Impurities can stably fall into the collection frame 105 through the discharge channel 106. When the installation shell 103 drives the clogged multi-stage filter element 9 to move outside the disassembly channel 8, the right end of the support rod 125 contacts and squeezes the right side of the inner cavity of the installation channel 102, so that the scraping surface of the scraping rod 107 is separated from the filter surface of the multi-stage filter element 9. Driven by the elastic force of the spring seat, the movable plate 134 moves and drives the two touch blocks 131 to fit together. After the two touch blocks 131 fit together, the signal sensor 132 operates to send an alarm signal to the alarm sounder 133. The alarm signal sent by the alarm sounder 133 can prompt the operator to replace the clogged multi-stage filter element 9 in time.

[0064] When the operator places the new multi-stage filter element 9 in the installation shell 103 and pushes the installation shell 103 to the leftmost side of the installation channel 102, the limit block 116 is pressed to move to the left and fit into the left side of the inner cavity of the limit groove 115. When the limit block 116 moves to the left, the connecting rod 117 drives the card slot 114 to move to the left, so that the card block 112 can be clamped into the card slot 114 again to limit the installation shell 103.

[0065] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0066] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An integrated device for efficient conversion of sulfur resources and recycling of tail gas, characterized in that: The invention comprises a reaction tower (1) for treating sulfur resources, a spray tower (2) arranged above the reaction tower (1) for treating tail gas discharged from the reaction tower (1), a purification box (3) arranged above the spray tower (2) for treating tail gas discharged from the spray tower (2), a recovery pipeline (4) arranged on the left side of the reaction tower (1) and the purification box (3) for recycling the purified tail gas, a triple box (5) arranged below the reaction tower (1) for treating spray wastewater, and a purification box (5) arranged on the right side of the reaction tower (1) for treating the tail gas discharged from the spray tower (2). The side is used to guide the wastewater in the spray tower (2) into the filter box (6) in the triple box (5) after pretreatment, a drainage channel (7) is provided at the lower right part of the inner cavity of the filter box (6), a disassembly channel (8) is provided at the upper right part of the inner cavity of the filter box (6), two multi-stage filter elements (9) are provided in the filter box (6) and are respectively adapted to the drainage channel (7) and the disassembly channel (8), and a replacement mechanism (10) is provided on the right side of the inner cavity of the filter box (6) for replacing and disassembling the two multi-stage filter elements (9); The exchanging mechanism (10) comprises a mounting plate (101) that rotates on the right side of the inner cavity of the filter box (6), two mounting channels (102) symmetrically arranged on the upper and lower sides of the right side wall of the mounting plate (101), a mounting shell (103) that moves left and right in the mounting channel (102), two-section spring rods (1010) for driving the mounting shell (103) to move rightward are distributed on the front and back of the left side of the inner cavity of the mounting channel (102), a limiting mechanism (11) arranged on the upper part of the inner cavity of the filter box (6) and on the mounting shell (103), and a limiting mechanism (11) arranged on the inner cavity of the filter box (6) and on the mounting shell (103). A mounting groove (104) on the right side wall of the mounting shell (103), a collecting frame (105) detachably mounted in the mounting groove (104), a material discharge channel (106) provided on the left side of the inner cavity of the mounting groove (104), a scraping rod (107) movable up and down on the left side wall of the mounting shell (103) for cleaning dirt attached to the filter surface of the multi-stage filter element (9), a linkage mechanism (12) disposed on the front and rear sides of the mounting shell (103) for driving the scraping rod (107) to move up and down, and an alarm mechanism (13) disposed on the scraping rod (107); The linkage mechanism (12) includes a screw rod (121) symmetrically mounted on the left side of the front and rear side walls of the mounting shell (103), a guide wheel (122) fixedly mounted on the top of the screw rod (121), a guide rail (123) fixedly mounted on the top surface of the inner cavity of the mounting channel (102), a slider (124) movable up and down on the left side of the front and rear side walls of the mounting shell (103), a support rod (125) penetrating the slider (124) laterally, a compression spring (126) movably mounted on the right side of the support rod (125), and two buffer spring rods (127) distributed front and back on the right side of the inner cavity of the mounting channel (102); The guide wheel (122) is movably connected to the guide rail (123), the slider (124) is threadedly connected to the screw rod (121), the left end of the support rod (125) is fixedly connected to the scraping surface of the scraping rod (107), the right end of the support rod (125) is movably connected to the right side of the inner cavity of the installation channel (102), and the left output end of the buffer spring rod (127) is fixedly connected to the side wall of the installation shell (103).

2. The integrated device for efficient sulfur resource conversion and tail gas recycling according to claim 1, characterized in that: A driving motor (108) for driving the mounting plate (101) to rotate is fixedly mounted in the middle of the right side wall of the filter box (6), and a water level sensor (109) is fixedly mounted in the middle of the left side wall of the mounting plate (101). The multi-stage filter element (9) is placed in the inner cavity of the mounting shell (103), and the outer surface of the multi-stage filter element (9) is tightly fitted with the inner cavity of the mounting shell (103). The multi-stage filter element (9) is composed of an outer frame, an outer filter element, a middle filter element, and an inner filter element. The outer filter element, the middle filter element, and the inner filter element are fixed in the inner cavity of the outer frame at equal distances.

3. The integrated device for efficient sulfur resource conversion and tail gas recycling according to claim 2, characterized in that: An annular groove is provided on the right side of the inner cavity of the filter box (6), and the left side wall of the mounting plate (101) is fitted with the left side of the inner cavity of the annular groove. A sealing ring fitted with the right side wall of the mounting plate (101) is fixedly installed on the outer rings of the drainage channel (7) and the disassembly channel (8) on the right side of the inner cavity of the filter box (6).

4. The integrated device for efficient sulfur resource conversion and tail gas recycling according to claim 3, characterized in that: A placement groove (14) adapted to the scraping rod (107) is provided on the left side of the inner cavity of the installation groove (104), and a docking groove (15) for covering the discharge channel (106) is provided on the side of the inner cavity of the installation groove (104) away from the placement groove (14).

5. The integrated device for efficient sulfur resource conversion and tail gas recycling according to claim 4, characterized in that: The limiting mechanism (11) includes an annular assembly groove (111) provided on the left side of the outer ring wall of the mounting plate (101), two clamping blocks (112) hingedly connected to the upper and lower sides of the inner cavity of the annular assembly groove (111) and capable of torsional rotation, a sliding groove (113) provided on the left side of the outer surface of the mounting shell (103), a clamping groove (114) movable left and right in the sliding groove (113), a limiting groove (115) provided on the right side wall of the mounting shell (103), a limiting block (116) movable left and right in the limiting groove (115), a connecting rod (117) for connecting the clamping groove (114) and the limiting block (116), and a vertical rod (118) vertically fixed to the front side of the top of the inner cavity of the annular groove; The clamping block (112) is movably connected to the inner cavity of the clamping slot (114), the lower part of the vertical rod (118) is movably connected to the left side of the clamping block (112), the left side wall of the limit block (116) is movably connected to the left side of the inner cavity of the limit slot (115), and the left side movable sleeve of the connecting rod (117) is provided with a contraction spring (119), and the left and right ends of the contraction spring (119) are respectively fixedly connected to the left side wall of the clamping slot (114) and the right side of the inner cavity of the sliding slot (113).

6. The integrated device for efficient sulfur resource conversion and tail gas recycling according to claim 1, characterized in that: The alarm mechanism (13) includes two contact blocks (131) distributed on the left and right sides of the inner cavity of the scraper rod (107), a signal sensor (132) with a built-in power supply fixed to the bottom surface of the inner cavity of the scraper rod (107), and an alarm sounder (133) fixed to the rear of the right side wall of the filter box (6); Two spring seats are fixedly installed symmetrically on the left side of the inner cavity of the scraping rod (107), and a movable plate (134) is fixedly installed on the right end output shaft of the spring seat. The left side wall of one of the touch blocks (131) is fixedly connected to the right side wall of the movable plate (134), and the other touch block (131) is fixedly connected to the right side of the inner cavity of the scraping rod (107). The two touch blocks (131) are movably connected, and two cross bars (135) are fixedly installed symmetrically on the front and back of the movable plate (134), the right end of the cross bar (135) penetrates to the outside of the inner cavity of the scraping rod (107), and the right end of the cross bar (135) is movably connected to the left side wall of the mounting shell (103).

7. The integrated device for efficient sulfur resource conversion and tail gas recycling according to claim 6, characterized in that: The reaction tower (1) comprises a combustion furnace, a Claus reactor and a condenser. The combustion furnace is arranged at the lower part of the inner cavity of the reaction tower (1). The Claus reactor is arranged in the inner cavity of the reaction tower (1) and is located above the combustion furnace. The condenser is connected to the exhaust end of the Claus reactor for separating liquid sulfur from the gas after the reaction through the condenser and transporting it to an external liquid sulfur pool. An input pipeline for transporting acid gas into the combustion furnace is provided at the lower left part of the outer surface of the reaction tower (1). A delivery pump for transporting the gas separated by the condenser to the spray tower (2) is fixedly installed at the lower left part of the outer surface of the spray tower (2).

8. The integrated device for efficient sulfur resource conversion and tail gas recycling according to claim 7, characterized in that: The recovery pipeline (4) includes a recovery pump, a short recovery pipe, a long recovery pipe, and a flow control valve. The recovery pump is fixedly installed on the left side of the outer surface of the purification box (3). The short recovery pipe is used to connect the inner cavity of the purification box (3) with the air inlet port of the recovery pump. The two ends of the long recovery pipe are respectively connected to the air outlet port of the recovery pump and the input pipe. The flow control valve is arranged on the long recovery pipe.

9. The integrated device for efficient sulfur resource conversion and tail gas recycling according to claim 8, characterized in that: An injection pump is fixedly mounted on the left side wall of the filter box (6), the water outlet port of the injection pump is connected to the upper left side of the inner cavity of the filter box (6), and the inlet port of the injection pump is connected to the bottom of the inner cavity of the spray tower (2) through a drain pipe.

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