Liquid crude sulfur purification device

Abstract

The invention relates to the technical field of sulfur purification equipment, and particularly discloses a liquid crude sulfur purification device which comprises a purification cylinder and a filter cylinder, the filter cylinder comprises a filter part and a plugging part, a plugging device is arranged in the purification cylinder, the plugging device comprises a filtrate plate, a plugging plate and a lifting mechanism, and filtrate holes are formed in the filtrate plate. The filtrate plate and the plugging plate are in sliding fit with the purification cylinder in the height direction of the purification cylinder, the filtrate plate and the plugging plate are attached to the peripheral face of the filter cylinder and the inner wall of the purification cylinder, and when the plugging plate drives the filtrate plate to descend, liquid below the filtrate plate passes through filtrate holes and filter holes and then flows to the position above the plugging plate; when the filtrate plate is located at the plugging part, the plugging plate and the filtrate plate are close to each other, the plugging plate is attached to the filtrate plate, liquid at the bottom of the purification barrel enters the position above the plugging plate, and impurities at the bottom of the purification barrel are discharged; the liquid crude sulfur purification device provided by the invention can reduce the phenomenon of waste of liquid sulfur.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sulfur purification equipment, in particular to a liquid crude sulfur purification device. BACKGROUND

[0002] Liquid crude sulfur is a liquid form of sulfur at high temperatures (usually higher than its melting point of 115.2℃), and at room temperature, sulfur is a light yellow crystal with a low melting and boiling point, insoluble in water, slightly soluble in alcohol, easily soluble in carbon disulfide, and has oxidizing and reducing properties, which is an important chemical raw material.

[0003] Liquid sulfur purification is an important technology in the chemical industry, which aims to remove impurities in crude sulfur and improve the purity of sulfur to meet the needs of industrial applications. There are various methods for liquid sulfur purification, mainly including solvent extraction, pressure filtration, gravity sedimentation, and melting separation, etc. Among them, the principle of solvent extraction is to dissolve sulfur with organic solvents such as carbon disulfide, and then remove impurities by filtration and separation; the principle of pressure filtration is to separate impurities in liquid sulfur suspension by pressure; the principle of gravity sedimentation is to use the density difference between liquid sulfur and impurities to achieve preliminary separation by gravity sedimentation; the principle of melting separation is to separate impurities by heating and melting sulfur, taking advantage of the boiling point difference between impurities and sulfur.

[0004] The Chinese patent document with publication number CN204865173U discloses a liquid sulfur filter, which includes a filter cylinder, a heat preservation jacket, a cylinder end cover, and a filter component. The heat preservation jacket surrounds the filter cylinder, and the upper end of the heat preservation jacket is welded and sealed by a flange. The cylinder end cover is fixedly connected to the flange of the heat preservation jacket by bolts. The filter cylinder has a ring-shaped protrusion, and the filter component includes a fixed lap joint and a filter body connected thereto. The outer edge of the fixed lap joint is pressed on the ring-shaped protrusion. The bottom surface of the cylinder end cover has a central cylinder, and a spring is installed between the central cylinder and the fixed lap joint. The lower end of the filter cylinder is provided with a liquid sulfur inlet, and the upper end is provided with a liquid sulfur outlet. The upper end of the heat preservation jacket is provided with a steam inlet, and the lower end is provided with a steam outlet. The cylinder end cover is provided with a vent, a handle, and a discharge pipe.

[0005] During operation, steam is introduced from the steam inlet, and the liquid sulfur to be filtered enters the filter cylinder from the liquid sulfur inlet. After being filtered by the filter body, impurities are filtered out, and the pure liquid sulfur is discharged from the liquid sulfur outlet. The filter cylinder is provided with a discharge pipe, and the impurities generated at the bottom of the cylinder can be discharged through the discharge port.

[0006] In the above-mentioned technology, during the liquid sulfur purification and filtration process, the liquid sulfur outlet is located at the top of the filter cylinder, and when the impurities generated at the bottom of the cylinder are discharged through the discharge port, the liquid sulfur at the bottom of the filter cylinder is easily discharged synchronously through the discharge port, which may cause waste of liquid sulfur. SUMMARY

[0007] The application provides a liquid crude sulfur purification device, and aims to solve the technical problem that in the prior art, liquid sulfur is easily discharged from a discharge port at the top of a filter cylinder during a filtering process, and the liquid sulfur is easily wasted.

[0008] The application provides a liquid crude sulfur purification device, and aims to solve the technical problem that in the prior art, liquid sulfur is easily discharged from a discharge port at the top of a filter cylinder during a filtering process, and the liquid sulfur is easily wasted.

[0009] The application provides a liquid crude sulfur purification device, and aims to solve the technical problem that in the prior art, liquid sulfur is easily discharged from a discharge port at the top of a filter cylinder during a filtering process, and the liquid sulfur is easily wasted.

[0010] Preferably, the lifting mechanism comprises a lifting sleeve for driving the sealing plate to lift, a screw rod one threaded on the lifting sleeve, and a driving part one installed on the purification cylinder and used for driving the screw rod one to rotate.

[0011] Preferably, the sealing plate and the filter plate are provided with an adjusting device, and the adjusting device comprises a pushing mechanism for driving the sealing plate and the filter plate to be vertically spaced apart and an extruding mechanism for driving the sealing plate and the filter plate to be connected and unlocked.

[0012] Beneficial effects: through the setting of the adjusting device, the push mechanism enables the blocking plate and the filtrate plate to maintain a certain distance in the vertical direction, and through the extrusion mechanism, the blocking plate and the filtrate plate can be clamped and unlocked, so that when the impurities at the bottom of the purification cylinder are discharged, the blocking plate and the filtrate plate are clamped, the liquid at the bottom of the purification cylinder is extruded above the blocking plate, and the liquid is blocked.

[0013] Preferably, the push mechanism comprises a mounting sleeve mounted on the blocking plate and a push assembly for driving the blocking plate and the filtrate plate to be vertically spaced.

[0014] Preferably, the push assembly comprises an adjusting sleeve slidingly fitted in the mounting sleeve and an elastic piece for driving the blocking plate and the filtrate plate to be vertically spaced, the adjusting sleeve is arranged on the filtrate plate, one end of the elastic piece is connected with the mounting sleeve, and the other end is connected with the filtrate plate.

[0015] Preferably, the extrusion mechanism comprises a guide rod mounted on the purification cylinder, an extrusion ring arranged on the guide rod, an elastic clamping jaw arranged on the filtrate plate, and an extrusion assembly for pushing the blocking plate and the filtrate plate to be unlocked, the blocking plate is provided with a clamping groove matched with the elastic clamping jaw, the blocking plate and the filtrate plate are slidingly fitted on the guide rod, when the filtrate plate slides to the extrusion ring, the blocking plate continues to descend, the extrusion ring pushes the filtrate plate, the elastic clamping jaw of the filtrate plate is clamped in the clamping groove, and the blocking plate and the filtrate plate are clamped and attached together.

[0016] Preferably, the extrusion assembly comprises a mounting plate mounted on the top of the purification cylinder and an extrusion block arranged on the mounting plate and used for extruding the elastic clamping jaw out of the clamping groove.

[0017] Beneficial effects: through the setting of the mounting plate and the extrusion block, when the elastic clamping jaw moves to the extrusion block and continues to rise, the extrusion block can extrude the elastic clamping jaw, so that the elastic clamping jaw slides out of the clamping groove, and the blocking plate and the filtrate plate are unlocked.

[0018] Preferably, the bottom end of the filter cylinder is provided with a communication groove, the bottom of the filter cylinder is provided with a liquid discharge groove, the bottom of the filter cylinder is slidingly fitted with a discharge plate, the blocking plate is provided with a liquid discharge hole, and the filtrate plate is provided with a blocking block matched with the liquid discharge hole.

[0019] Beneficial effects: through the setting of the communication groove and the drainage groove, when the filtrate plate slides to the sealing part and the liquid between the filtrate plate and the sealing plate is extruded, the sealing plate continues to drop, the liquid can be extruded, and part of the liquid can be drained from the drainage hole, part of the liquid can pass through the filtrate plate and backwash the filtrate plate, and part of the liquid passing through the filtrate plate can extrude the pressure relief plate, the pressure relief plate rises, and the liquid at the bottom of the filter barrel is pushed to make the liquid pass through the drainage groove to the upper side of the sealing plate.

[0020] Preferably, the top of the purification cylinder is provided with a fixed plate, the fixed plate is provided with a backflushing device, the backflushing device comprises a backflushing plate slidingly fitted on the inner wall of the filter cylinder, a screw rod two screw-fitted on the backflushing plate, and a driving member two installed on the fixed plate and used for driving the screw rod two to rotate, and the backflushing plate rises and falls synchronously with the sealing plate.

[0021] Beneficial effects: through the setting of the backflushing device, when the sealing plate drives the filtrate plate to rise, the driving member two is started to drive the screw rod two to rotate and drive the backflushing plate to rise, the backflushing plate is located below the filtrate plate, and the positions of the backflushing plate and the filtrate plate in the vertical direction are matched with the positions of the filter holes on the filter cylinder, so that the liquid above the sealing plate can enter the filter cylinder through the filter holes, and finally enter the space below the filtrate plate in the purification cylinder from the filter holes of the filter cylinder, realizing backflushing of the filter holes of the filter cylinder and efficient cleaning of the impurities in the filter holes.

[0022] Preferably, the fixed plate is provided with a nozzle for blowing the impurities in the filter holes at the top of the filter cylinder.

[0023] Beneficial effects: through the setting of the nozzle, the nozzle can cooperate with the backflushing device to efficiently clean the impurities in the filter holes at the top of the filter cylinder when the nozzle works.

[0024] The beneficial effects of the present application are: 1、In the present application, when the impurities at the bottom of the purification cylinder need to be discharged, the lifting mechanism is first started to drive the sealing plate to descend, the sealing plate can drive the filtrate plate to descend when descending, the liquid below the filtrate plate flows to the upper side of the sealing plate after passing through the filtrate hole and the filter hole during the descending process of the filtrate plate, the sealing plate continues to descend when the filtrate plate is located at the sealing part, at this time the filtrate plate no longer descends, the sealing plate and the filtrate plate approach each other, and the sealing plate is attached to the filtrate plate, at this time the liquid at the bottom of the purification cylinder enters the upper side of the sealing plate and is blocked by the sealing plate, and then the impurities at the bottom of the purification cylinder are discharged, so that the liquid sulfur cannot be discharged with the impurities when the impurities are discharged, thereby avoiding the phenomenon of waste of liquid sulfur.

[0025] 2. In the present invention, by setting the adjustment device and the pushing mechanism, a certain distance can be maintained between the sealing plate and the filtrate plate in the vertical direction. By the squeezing mechanism, the sealing plate and the filtrate plate can be snapped in and unlocked. Therefore, when the debris at the bottom of the purification cylinder is discharged, the sealing plate and the filtrate plate are snapped in, and the liquid at the bottom of the purification cylinder is squeezed to the top of the sealing plate, thereby sealing the liquid.

[0026] 3. In the present invention, through the arrangement of the mounting plate and the extrusion block, when the elastic claw moves to the extrusion block and continues to rise, the extrusion block can squeeze the elastic claw, thereby causing the elastic claw to slide out of the clamping groove, thereby achieving unlocking between the sealing plate and the filtrate plate.

[0027] 4. In the present invention, through the setting of the connecting groove and the drainage groove, when the filtrate plate slides to the sealing part and squeezes the liquid between the filtrate plate and the sealing plate, the sealing plate continues to descend, which can squeeze the liquid and make part of the liquid be discharged from the drainage hole. Part of the liquid can pass through the filtrate plate and backwash the filtrate plate. At the same time, part of the liquid passing through the filtrate plate can squeeze the pressure relief plate, and the pressure relief plate rises and pushes the liquid at the bottom of the filter barrel, so that the liquid can pass through the drainage groove and reach the top of the sealing plate.

[0028] 5. In the present invention, through the setting of the backflushing device, when the sealing plate drives the filtrate plate to rise, the driving part 2 is started to drive the screw 2 to rotate, and the backflushing plate is driven to rise. The backflushing plate is located below the filtrate plate, and the vertical positions of the backflushing plate and the filtrate plate are adapted to the positions of the filter holes on the filter cartridge, so that the liquid above the sealing plate can enter the filter cartridge through the filter holes, and finally enter the space below the filtrate plate of the purification cartridge from the filter holes of the filter cartridge, thereby realizing backflushing of the filter holes of the filter cartridge and efficiently cleaning the debris in the filter holes.

[0029] 6. In the present invention, through the setting of the nozzle, when the nozzle is working, it can cooperate with the backflushing device to efficiently clean the debris in the filter holes at the top of the filter cartridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0031] Figure 2 It is a partial cross-sectional view showing the connection relationship between the filtrate plate and the blocking plate of the present invention.

[0032] Figure 3 It is a partial cross-sectional view showing the connection relationship between the fixing plate and the nozzle of the present invention.

[0033] Figure 4 yes Figure 3 A partial enlarged view of point A in the middle.

[0034] Figure 5 is a partial sectional view of the present application showing the connection relationship of the elastic member and the mounting sleeve.

[0035] Figure 6 is a partial sectional view of the present application showing the connection relationship of the discharge pressure plate and the screw rod two.

[0036] Figure 7 is a partial sectional view of the present application showing the adhering state of the blocking plate and the filtrate plate.

[0037] Figure 8 is a partial sectional view of the present application showing the backflushing state of the backflushing plate and the filtrate plate to the filter cartridge.

[0038] Reference signs: 1, purification cartridge; 2, filter cartridge; 21, filtering part; 22, blocking part; 23, communication groove; 24, discharge groove; 3, blocking device; 31, filtrate plate; 311, blocking block; 32, blocking plate; 321, clamping groove; 322, discharge hole; 33, lifting mechanism; 331, lifting sleeve; 332, screw rod one; 333, driving member one; 4, adjusting device; 41, pushing mechanism; 411, mounting sleeve; 412, adjusting sleeve; 413, elastic member; 42, extruding mechanism; 421, guide rod; 422, extruding ring; 423, elastic clamping jaw; 424, mounting plate; 425, extruding block; 5, discharge pressure plate; 6, fixed plate; 7, backflushing device; 71, backflushing plate; 72, screw rod two; 73, driving member two; 8, nozzle; 9, liquid inlet pipe; 10, liquid discharge pipe. DETAILED DESCRIPTION

[0039] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0040] Reference Figures 1-8The application discloses a liquid crude sulfur purification device, which comprises a purification cylinder 1, a filter cylinder 2 and a blocking device 3, the bottom of the purification cylinder 1 is provided with a slag discharge port for discharging sundries, the bottom of the purification cylinder 1 is provided with a control valve at the slag discharge port, the purification cylinder 1 is fixedly provided with a liquid inlet pipe 9 for liquid inlet, the filter cylinder 2 is fixedly provided with a liquid outlet pipe 10 for liquid outlet, two filter cylinders 2 are fixedly arranged in the purification cylinder 1, and the filter cylinders 2 are vertically arranged, the blocking device 3 is used for blocking the bottom of the purification cylinder 1 when the sundries are discharged, so that the liquid is located above the blocking device 3; when the liquid crude sulfur needs to be purified, the liquid is added into the purification cylinder 1 through the liquid inlet pipe 9, the liquid is filtered through the filter cylinder 2, the sundries are intercepted outside the filter cylinder 2, the filtered liquid can enter the filter cylinder 2 and be discharged from the liquid outlet pipe 10, when the sundries at the bottom of the filter cylinder 2 need to be cleaned, the bottom of the purification cylinder 1 is blocked through the blocking device 3, then the control valve is opened, the sundries can be discharged through the slag discharge port, and the purification of the liquid crude sulfur is completed.

[0041] Referring to Figure 2 and Figure 3 , the filter cylinder 2 comprises a filter part 21 and a blocking part 22 fixedly arranged at the top and bottom of the filter part 21, the filter part 21 is provided with filter holes for filtering the sundries in the liquid.

[0042] Referring to Figure 2 , Figure 3 and Figure 5 , the blocking device 3 comprises a filtrate plate 31 for filtering the liquid, a blocking plate 32 and a lifting mechanism 33 for lifting and adjusting the blocking plate 32, the filtrate plate 31 and the blocking plate 32 are horizontally arranged, a plurality of filtrate holes are uniformly arranged on the filtrate plate 31, the blocking plate 32 is located above the filtrate plate 31, and the filtrate plate 31 is vertically slidably connected to the blocking plate 32, the filtrate plate 31 and the blocking plate 32 are slidably connected to the purification cylinder 1 along the height direction of the purification cylinder 1, and the filtrate plate 31 and the blocking plate 32 are attached to the outer circumferential surface of the filter cylinder 2 and the inner wall of the purification cylinder 1; when the bottom of the purification cylinder 1 needs to be blocked, the blocking plate 32 drives the filtrate plate 31 to descend, the liquid below the filtrate plate 31 flows to the upper side of the blocking plate 32 through the filtrate holes and the filter holes, when the filtrate plate 31 is located at the blocking part 22, the blocking plate 32 and the filtrate plate 31 are close to each other, and the blocking plate 32 is attached to the filtrate plate 31, the liquid at the bottom of the purification cylinder 1 enters the upper side of the blocking plate 32, and the sundries at the bottom of the purification cylinder 1 are discharged.

[0043] Among them, referring to Figure 2 , Figure 3 and Figure 5The lifting mechanism 33 comprises a lifting sleeve 331 for lifting the blocking plate 32, a screw rod I 332 threadedly fitted on the lifting sleeve 331, and a driving member I 333 installed on the purification cylinder 1 and used for driving the screw rod I 332 to rotate. The top of the purification cylinder 1 is provided with a fixed plate 6 arranged horizontally. The driving member I 333 is directly provided with an electric motor. The driving member I 333 is fixedly installed on the fixed plate 6. The screw rod I 332 is rotatably fitted on the fixed plate 6 and fixedly connected with an output shaft of the driving member I 333. The lifting sleeve 331 is fixedly installed on the blocking plate 32. When the driving member I 333 is started, the screw rod I 332 is driven to rotate, and the lifting sleeve 331 is driven to lift when the screw rod I 332 rotates. The lifting sleeve 331 drives the blocking plate 32 and the filtrate plate 31 to lift and adjust.

[0044] With reference to Figure 3 , Figure 4 and Figure 5 , the adjusting device 4 is arranged between the blocking plate 32 and the filtrate plate 31. The adjusting device 4 comprises a pushing mechanism 41 for driving the blocking plate 32 and the filtrate plate 31 to be arranged at a vertical interval and a pressing mechanism 42 for driving the blocking plate 32 and the filtrate plate 31 to be clamped and unlocked. The pushing mechanism 41 comprises a mounting sleeve 411 fixedly installed on the blocking plate 32 and a pushing assembly for driving the blocking plate 32 and the filtrate plate 31 to be arranged at a vertical interval. The mounting sleeve 411 is vertically arranged. The pushing assembly comprises an adjusting sleeve 412 slidably fitted in the mounting sleeve 411 and an elastic member 413 for driving the blocking plate 32 and the filtrate plate 31 to be arranged at a vertical interval. The adjusting sleeve 412 is fixedly arranged on the filtrate plate 31. The elastic member 413 is vertically arranged. One end of the elastic member 413 is fixedly connected with the mounting sleeve 411, and the other end of the elastic member 413 is fixedly connected with the filtrate plate 31. In the initial state, the elastic member 413 is kept in an extended state, and the blocking plate 32 and the filtrate plate 31 are arranged at a vertical interval.

[0045] With reference to Figure 3 , Figure 4 and Figure 8, the extrusion mechanism 42 comprises a guide rod 421 fixedly installed on the purification cylinder 1, an extrusion ring 422 arranged on the guide rod 421, an elastic clamping jaw 423 fixedly arranged on the filtrate plate 31, and an extrusion assembly for pushing the blocking plate 32 and the filtrate plate 31 to be unlocked, the guide rod 421 is vertically arranged, the extrusion ring 422 is fixedly arranged at the bottom of the guide rod 421 and the bottom of the screw rod one 332, and the extrusion ring 422 is used for limiting the upward and downward movement of the filtrate plate 31 along the vertical direction, and the elastic clamping jaw 423 is vertically arranged; the blocking plate 32 is provided with a clamping groove 321 matched with the elastic clamping jaw 423, the clamping groove 321 and the elastic clamping jaw 423 are arranged in the vertical direction, the blocking plate 32 and the filtrate plate 31 are slidingly fitted on the guide rod 421, when the filtrate plate 31 slides to the extrusion ring 422 and abuts against the extrusion ring 422, the blocking plate 32 continues to descend, the extrusion ring 422 pushes the filtrate plate 31, the elastic clamping jaw 423 of the filtrate plate 31 is clamped at the top of the clamping groove 321, and the blocking plate 32 and the filtrate plate 31 are clamped and attached together (the state is shown in Figure 7 ).

[0046] Referring to Figure 2 , Figure 3 and Figure 4 , the extrusion assembly comprises a mounting plate 424 fixedly installed on the top of the purification cylinder 1 and an extrusion block 425 fixedly arranged on the mounting plate 424 and used for extruding the elastic clamping jaw 423 to slide out of the clamping groove 321, one side of the extrusion block 425 is provided with an arc-shaped inclined surface, the extrusion block 425 and the elastic clamping jaw 423 are arranged in the vertical direction, when the blocking plate 32 drives the filtrate plate 31 to ascend and the blocking plate 32 drives the elastic clamping jaw 423 to move to the extrusion block 425, when the blocking plate 32 continues to ascend, the extrusion block 425 extrudes the elastic clamping jaw 423, so that the elastic clamping jaw 423 is deformed and slides out of the clamping groove 321, and the unlocking between the blocking plate 32 and the filtrate plate 31 is realized.

[0047] Referring to Figure 3 , Figure 6 and Figure 7 , the bottom end of the filter cylinder 2 is provided with a communication groove 23, the bottom of the filter cylinder 2 is provided with a liquid discharge groove 24, the liquid discharge groove 24 is an arc-shaped groove, and the filter cylinder 2 is slidingly fitted with a pressure discharge plate 5, the pressure discharge plate 5 is slidingly fitted on the filter cylinder 2 along the vertical direction, in the initial state, the pressure discharge plate 5 is located at the bottom end of the filter cylinder 2, the blocking plate 32 is provided with a plurality of liquid discharge holes 322, and the filtrate plate 31 is fixedly arranged with a blocking block 311 matched with the liquid discharge holes 322.

[0048] Referring to Figure 2 , Figure 3 and Figure 6The fixed plate 6 is provided with a backflush device 7, the backflush device 7 comprises a backflush plate 71 which is slidably fitted to the inner wall of the filter cylinder 2, a screw rod 72 which is threadedly fitted to the backflush plate 71 and a driving member 73 which is fixedly installed on the fixed plate 6 and is used for driving the screw rod 72 to rotate, the driving member 73 directly adopts an electric motor, the output shaft of the driving member 73 is fixedly connected with the screw rod 72, the driving member 73 is started to drive the screw rod 72 to rotate, and the screw rod 72 drives the backflush plate 71 to adjust the lifting; the blocking plate 32 is lifted, and the backflush plate 71 is lifted synchronously with the blocking plate 32, when the blocking plate 32 is lifted, the filtrate plate 31 is lifted, and the driving member 73 is started to make the backflush plate 71 be lifted synchronously, and the filtrate plate 31 and the backflush plate 71 keep a certain distance (the state is shown in Figure 8 The liquid above the blocking plate 32 can enter the filter cylinder 2 through the filter holes above and enter the purification cylinder 1 through the filter holes below the blocking plate 32, and the flowing liquid can backflush the filter holes of the filter cylinder 2 to clean the sundries in the filter holes; when the filtrate plate 31 abuts against the extrusion ring 422, the blocking plate 32 continues to descend, the liquid between the blocking plate 32 and the filtrate plate 31 is extruded by the blocking plate 32, the liquid can enter above the blocking plate 32 through the liquid discharge hole 322, and part of the liquid can enter below the filtrate plate 31 through the filtrate hole of the filtrate plate 31, the part of the liquid can backflush the filtrate hole of the filtrate plate 31 in the flowing process, and the part of the liquid can extrude the pressure discharge plate 5 after passing through the communication groove 23 to make the pressure discharge plate 5 ascend, the liquid between the pressure discharge plate 5 and the backflush plate 71 is extruded in the ascending process of the pressure discharge plate 5, the liquid is discharged through the liquid discharge groove 24, the liquid enters above the blocking plate 32, and then the sundries at the bottom end of the purification cylinder 1 and a small amount of liquid after backflushing are discharged, so that the phenomenon that a large amount of liquid is discharged with the sundries when the sundries at the bottom end of the purification cylinder 1 are discharged without blocking the purification cylinder 1 can be avoided.

[0049] Referring to Figure 2 and Figure 3 , the fixed plate 6 is fixedly provided with a nozzle 8 which is used for spraying the sundries in the filter holes at the top of the filter cylinder 2, a plurality of nozzles 8 are uniformly arranged in the filter cylinder 2, and the nozzle 8 is connected with a gas supply mechanism (not shown in the figure) which is used for supplying gas to the nozzle 8, the gas supply mechanism is started to spray gas through the nozzle 8 to clean the sundries in the filter holes at the top of the filter cylinder 2.

[0050] The implementation principle of the liquid crude sulfur purification device is as follows: when the liquid crude sulfur needs to be purified, the liquid is added into the purification cylinder 1 through the liquid inlet pipe 9, the sundries are intercepted outside the filter cylinder 2 after the liquid is filtered through the filter cylinder 2, and the filtered liquid can enter the filter cylinder 2 and be discharged from the liquid discharge pipe 10; When the impurities at the bottom of the filter cartridge 2 need to be cleaned, the driving member 333 is started to drive the screw 332 to rotate, and the screw 332 drives the lifting sleeve 331 to descend, and the lifting sleeve 331 drives the blocking plate 32 and the filtrate plate 31 to descend. When the filtrate plate 31 slides to the position of the extrusion ring 422 and abuts against the extrusion ring 422, the blocking plate 32 continues to descend, the extrusion ring 422 pushes the filtrate plate 31, at this time, the mounting sleeve 411 of the blocking plate 32 and the adjusting sleeve 412 of the filtrate plate 31 slide relative to each other, and the elastic member 413 is extruded, and then the elastic clamping jaw 423 of the filtrate plate 31 is clamped on the top of the clamping groove 321, and the blocking plate 32 and the filtrate plate 31 are clamped and attached together; When the blocking plate 32 continues to descend, the liquid between the blocking plate 32 and the filtrate plate 31 is extruded by the blocking plate 32, the liquid can enter the upper part of the blocking plate 32 through the liquid discharge hole 322, and part of the liquid can enter the lower part of the filtrate plate 31 through the filtrate hole of the filtrate plate 31. In the process of flowing, the liquid can backwash the filtrate hole of the filtrate plate 31, and when the liquid flows, it can extrude the discharge pressure plate 5 after passing through the communication groove 23, so that the discharge pressure plate 5 rises. In the process of rising, the liquid between the discharge pressure plate 5 and the backwashing plate 71 is extruded, and the liquid is discharged through the liquid discharge groove 24. The liquid enters the upper part of the blocking plate 32, then the control valve at the bottom of the purification cartridge 1 is opened, and then the impurities at the bottom end of the purification cartridge 1 and a small amount of liquid used after backwashing are discharged. When the impurities at the bottom end of the purification cartridge 1 are discharged without blocking the purification cartridge 1, a large amount of liquid will be discharged with the impurities; After the impurities are discharged, the control valve at the bottom of the purification cartridge 1 is closed, then the driving member 333 is started to drive the screw 332 to rotate, and the screw 332 drives the lifting sleeve 331 to ascend, and the lifting sleeve 331 drives the blocking plate 32 and the filtrate plate 31 to descend. At the same time, the driving member 73 is started to drive the backwashing plate 71 to ascend synchronously, and the filtrate plate 31 and the backwashing plate 71 maintain a certain distance (as shown in the state of Figure 8 In the process of ascending of the blocking plate 32 and the filtrate plate 31, the liquid above the blocking plate 32 can enter the filter cartridge 2 through the filter hole above the blocking plate 32, and then enter the purification cartridge 1 through the filter hole below the blocking plate 32. The liquid flowing can backwash the filter hole of the filter cartridge 2, and then clean the impurities in the filter hole. At the same time, the gas supply mechanism is started, and the gas is sprayed through the nozzle 8 to clean the impurities in the filter hole at the top of the filter cartridge 2; When the blocking plate 32 drives the elastic clamping jaw 423 to move to the extrusion block 425, the blocking plate 32 continues to rise, the extrusion block 425 extrudes the elastic clamping jaw 423, so that the elastic clamping jaw 423 is deformed and slides out of the clamping groove 321, realizing the unlocking between the blocking plate 32 and the filtrate plate 31, at this time the elastic member 413 releases the elastic restoring force, drives the adjusting sleeve 412 to slide relative to the mounting sleeve 411, drives the filtrate plate 31 to reset, and then starts the driving member two 73, drives the recoil plate 71 to descend and reset, and completes the discharge operation of the impurities at the bottom of the purification cylinder 1.

[0051] Although the embodiments of the present application have been shown and described above, it should be understood by those skilled in the art that the above-mentioned embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above-mentioned embodiments within the scope of the present application.

Claims

1. A liquid crude sulfur purification device, comprising a purification cylinder (1) and a filter cylinder (2), characterized in that: The filter cartridge (2) comprises a filter portion (21) and a blocking portion (22) provided at the top and bottom of the filter portion (21); a filter hole is provided on the filter portion (21); a blocking device (3) is provided in the purification cartridge (1); the blocking device (3) comprises a filtrate plate (31) for filtering out liquid, a blocking plate (32), and a lifting mechanism (33) for driving the blocking plate (32) to move up and down; a filtrate hole is provided on the filtrate plate (31); the blocking plate (32) is located above the filtrate plate (31), and the filtrate plate (31) is slidably fitted on the blocking plate (32) in the vertical direction; the filtrate plate (31) and the blocking plate (32) are both The filter plate (31) and the sealing plate (32) are slidably fitted in the purification cylinder (1) along the height direction of the purification cylinder (1), and the filtrate plate (31) and the sealing plate (32) are both attached to the outer peripheral surface of the filter cylinder (2) and the inner wall of the purification cylinder (1). When the sealing plate (32) drives the filtrate plate (31) to descend, the liquid below the filtrate plate (31) flows to the top of the sealing plate (32) after passing through the filtrate hole and the filter hole. When the filtrate plate (31) is located at the sealing portion (22), the sealing plate (32) and the filtrate plate (31) are close to each other, and the sealing plate (32) is attached to the filtrate plate (31). The liquid at the bottom of the purification cylinder (1) enters the top of the sealing plate (32), and the debris at the bottom of the purification cylinder (1) is discharged.

2. A liquid crude sulfur purification device according to claim 1, characterized in that: The lifting mechanism (33) includes a lifting sleeve (331) for driving the sealing plate (32) to lift and lower, a screw rod (332) threadedly engaged with the lifting sleeve (331), and a driving member (333) installed on the purification cylinder (1) and for driving the screw rod (332) to rotate.

3. The liquid crude sulfur purification device according to claim 1, characterized in that: An adjusting device (4) is provided between the blocking plate (32) and the filtrate plate (31), the adjusting device (4) comprising a pushing mechanism (41) for driving the blocking plate (32) and the filtrate plate (31) to be arranged along a vertical spacing, and a squeezing mechanism (42) for driving the blocking plate (32) and the filtrate plate (31) to engage and unlock.

4. A liquid crude sulfur purification device according to claim 3, characterized in that: The pushing mechanism (41) comprises a mounting sleeve (411) mounted on the blocking plate (32) and a pushing assembly for driving the blocking plate (32) and the filtrate plate (31) to be arranged vertically spaced apart.

5. A liquid crude sulfur purification device according to claim 4, characterized in that: The pushing assembly comprises an adjusting sleeve (412) that is slidably fitted in the mounting sleeve (411) and an elastic member (413) that is arranged along a vertical interval for driving the blocking plate (32) and the filtrate plate (31). The adjusting sleeve (412) is arranged on the filtrate plate (31). One end of the elastic member (413) is connected to the mounting sleeve (411), and the other end is connected to the filtrate plate (31).

6. The liquid crude sulfur purification device according to claim 3, characterized in that: The squeezing mechanism (42) comprises a guide rod (421) mounted on the purification cylinder (1), a squeezing ring (422) arranged on the guide rod (421), an elastic claw (423) arranged on the filtrate plate (31), and a squeezing assembly for pushing the blocking plate (32) and the filtrate plate (31) to unlock. The blocking plate (32) is provided with a clamping groove (321) adapted to the elastic claw (423). The blocking plate (32) and the filtrate plate (31) are slidably fitted on the guide rod (421). When the filtrate plate (31) slides to the squeezing ring (422), the blocking plate (32) continues to descend, the squeezing ring (422) pushes the filtrate plate (31), and the elastic claw (423) of the filtrate plate (31) is clamped in the clamping groove (321). The blocking plate (32) and the filtrate plate (31) are clamped and fitted together.

7. A liquid crude sulfur purification device according to claim 6, characterized in that: The extrusion assembly comprises a mounting plate (424) mounted on the top of the purification cylinder (1) and an extrusion block (425) disposed on the mounting plate (424) and used to squeeze the elastic claw (423) to slide out of the clamping groove (321).

8. The liquid crude sulfur purification device according to claim 1, characterized in that: A connecting groove (23) is provided at the bottom end of the filter cartridge (2), a drainage groove (24) is provided on the bottom of the filter cartridge (2), a pressure discharge plate (5) is slidably fitted on the bottom of the filter cartridge (2), a drainage hole (322) is provided on the blocking plate (32), and a blocking block (311) adapted to the drainage hole (322) is provided on the filtrate plate (31).

9. The liquid crude sulfur purification device according to claim 1, characterized in that: A fixed plate (6) is provided on the top of the purification cylinder (1), and a recoil device (7) is provided on the fixed plate (6). The recoil device (7) includes a recoil plate (71) that is slidably fitted on the inner wall of the filter cylinder (2), a second screw (72) that is threadedly fitted on the recoil plate (71), and a second driving member (73) that is installed on the fixed plate (6) and is used to drive the second screw (72) to rotate. When the blocking plate (32) is raised or lowered, the recoil plate (71) is raised or lowered synchronously with the blocking plate (32).

10. The liquid crude sulfur purification device according to claim 9, characterized in that: The fixed plate (6) is provided with a nozzle (8) for blowing out debris in the filter holes at the top of the filter cartridge (2).

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