Sulfur melting tank structure

Abstract

The utility model provides a sulfur melting tank structure, which belongs to the technical field of sulfuric acid preparation and comprises a sulfur melting kettle, a stirring component and a coil component. The sulfur melting kettle comprises a kettle body and an end cover, a feeding funnel is arranged on the end cover, and a liquid discharge pipe is arranged on the outer wall of the kettle body; the stirring assembly comprises a driving motor, a stirring rod and a stirring part, the driving motor is mounted on the upper end surface of the end cover, the stirring rod is longitudinally arranged in the kettle body, and the stirring part is arranged on the stirring rod; the coil pipe assembly comprises a plurality of U-shaped pipes and a plurality of hoses, the U-shaped pipes are arranged on the end cover in the circumferential direction, the two ends of each hose are detachably connected with any opening end of every two adjacent U-shaped pipes, the U-shaped pipes are sequentially connected through the hoses, one opening end of the U-shaped pipe at the starting end is connected with a steam inlet pipe, and one opening end of the U-shaped pipe at the tail end is connected with a steam discharging pipe. According to the sulfur melting tank structure provided by the utility model, the coil pipe assembly does not need to be integrally disassembled or integrally scrapped, so that the operation is convenient, and the cost cannot be increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of sulfuric acid preparation, and more specifically, it relates to a molten sulfur tank structure. Background Art

[0002] A molten sulfur tank is a device used for melting sulfur in chemical production, mainly for sulfur melting in the sulfuric acid production process and other occasions where molten sulfur is required.

[0003] In the molten sulfur tank, coil pipes and stirring blades are installed in the molten sulfur kettle. Solid sulfur is filled into the molten sulfur kettle, and finally forms liquid sulfur under the combined action of heating by the coil pipes and stirring by the stirring blades. In the prior art, the coil pipe is an integral structure. Once local damage occurs due to corrosion or collision, the whole coil pipe needs to be taken out, and then the damaged area of the coil pipe is repaired. After the repair is completed, the whole coil pipe is installed into the molten sulfur kettle again. This not only has cumbersome operation, but also affects the efficiency of continuous production. In addition, if the coil pipe is severely damaged, it may even lead to the whole coil pipe being scrapped, increasing the cost. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a molten sulfur tank structure, aiming to solve the problems that the whole coil pipe structure needs to be repaired as a whole after local damage, with cumbersome operation, and even the whole coil pipe is scrapped, increasing the cost.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: to provide a molten sulfur tank structure, including:

[0006] A molten sulfur kettle, the molten sulfur kettle includes a kettle body and an end cover, the end cover is detachably installed on the upper end of the kettle body, a feeding funnel is arranged on the end cover, and a liquid discharge pipe is arranged on the outer wall of the kettle body;

[0007] A stirring assembly, the stirring assembly includes a driving motor, a stirring rod and a stirring part, the driving motor is installed on the upper end face of the end cover, the stirring rod is longitudinally arranged in the kettle body and the upper end of the stirring rod is drivingly connected to the driving motor, and the stirring part is arranged on the stirring rod;

[0008] A coil pipe assembly, the coil pipe assembly includes a plurality of U-shaped pipes and a plurality of hoses. The plurality of U-shaped pipes are circumferentially arranged on the end cover, the open ends of the U-shaped pipes face upwards and are installed through the end cover from bottom to top, both ends of the hose are detachably connected to any open end of two adjacent U-shaped pipes, and the plurality of U-shaped pipes are sequentially connected through the plurality of hoses. One open end of the starting U-shaped pipe is connected to a steam inlet pipe, and one open end of the end U-shaped pipe is connected to a steam discharge pipe.

[0009] In a possible implementation, a first flange is circumferentially provided at the upper end of the kettle body, a second flange is circumferentially provided at the lower end of the end cover, and the first flange and the second flange are attached to each other and fixed by a plurality of circumferential U-shaped fasteners.

[0010] In a possible implementation, the stirring part includes:

[0011] A plurality of stirring blades, which are circumferentially arranged on the upper part of the stirring rod and have multiple groups from top to bottom;

[0012] A plurality of stirring frames, which are circumferentially arranged on the lower part of the stirring rod.

[0013] In a possible implementation, the stirring frame includes an upper horizontal plate, a lower horizontal plate and an outer vertical plate. The upper horizontal plate and the lower horizontal plate are spaced apart from top to bottom on the lower part of the stirring rod. The upper end of the outer vertical plate is connected to the outer end of the upper horizontal plate, and the lower end of the outer vertical plate is connected to the outer end of the lower horizontal plate. A plurality of horizontally arranged flow disturbance grooves are provided at the lower ends of the upper horizontal plate and the lower horizontal plate.

[0014] In a possible implementation, the upper end of the U-shaped tube has a first opening end and a second opening end. The hose connects the first opening end of one U-shaped tube and the second opening end of the other U-shaped tube. The lower end of the U-shaped tube has an arc-shaped closed end, and the height of the arc-shaped closed end from the bottom surface of the inner cavity of the sulfur melting kettle is less than 1 / 5 of the total height of the inner cavity of the sulfur melting kettle.

[0015] In a possible implementation, a communicating pipe is horizontally arranged inside the U-shaped tube.

[0016] In a possible implementation, a drain pipe is inserted into the inner side of the second opening end of the U-shaped tube, and the lower end of the drain pipe extends to the bottom of the U-shaped tube.

[0017] In a possible implementation, two annular clamping grooves are provided in the upper part of the U-shaped tube, and the two annular clamping grooves are respectively located below the first opening end and the second opening end. An opening ring is clamped in the annular clamping groove, and the opening ring is located on the upper end surface of the end cover.

[0018] In a possible implementation, a plurality of receiving grooves for receiving the opening ring are provided on the upper end surface of the end cover.

[0019] In a possible implementation, a plurality of strip-shaped pressing plates are circumferentially arranged on the upper end surface of the end cover. The upper ends of the plurality of U-shaped tubes respectively penetrate through the plurality of strip-shaped pressing plates. The strip-shaped pressing plates press on the two opening rings of the corresponding U-shaped tubes and are connected to the upper end surface of the end cover by fixing bolts.

[0020] The beneficial effects of a sulfur melting tank structure provided by the present utility model are as follows: Compared with the prior art, high-temperature steam is introduced into the steam inlet pipe. After passing through multiple U-shaped pipes and multiple hoses in sequence, it finally discharges from the steam discharge pipe, so that multiple U-shaped pipes are heated by the high-temperature steam and are in a high-temperature state. Start the driving motor, and the driving motor drives the stirring part to rotate through the stirring rod. Solid sulfur is added into the sulfur melting kettle through the feeding funnel. The solid sulfur is continuously stirred and subjected to high-temperature treatment in the sulfur melting kettle, and the solid sulfur is liquefied into sulfur liquid. When an individual U-shaped pipe is damaged, open the end cover, remove the two hoses corresponding to the damaged U-shaped pipe, pull out the damaged U-shaped pipe downward, take out a new U-shaped pipe and penetrate it upward through the end cover, and then reinstall the two removed hoses, finally completing the disassembly and assembly of the damaged U-shaped pipe. A sulfur melting tank structure provided by the present utility model does not require overall disassembly or overall scrapping of the coil assembly, which is not only convenient to operate but also does not cause an increase in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of a sulfur melting tank structure provided by the present utility model;

[0023] Figure 2 It is a top view of a sulfur melting tank structure provided by the present utility model;

[0024] Figure 3 It is Figure 1 a partial enlarged view of point A in

[0025] Figure 4 It is Figure 1 a partial enlarged view of point B in

[0026] Figure 5 It is a schematic structural diagram of the U-shaped pipe and the drain pipe provided by the present utility model.

[0027] In the figure: 1. Kettle body; 2. End cover; 3. Feed funnel; 4. Drain pipe; 5. Driving motor; 6. Stirring rod; 7. U-shaped pipe; 8. Hose; 9. First flange; 10. Second flange; 11. U-shaped clamping part; 12. Stirring paddle; 13. Upper cross plate; 14. Lower cross plate; 15. External longitudinal plate; 16. Turbulence groove; 17. First open end; 18. Second open end; 19. Connecting pipe; 20. Annular clamping groove; 21. Open ring; 22. Strip-shaped pressing plate; 23. Fixed bolt; 24. Steam inlet pipe; 25. Steam discharge pipe; 26. Drainage pipe. Detailed implementation mode

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0029] Unless otherwise clearly defined, when using terms such as "first", "second" or "third", etc., they are all used to distinguish different objects and are not used to describe a specific order.

[0030] Unless otherwise clearly defined, for orientation terms, when using terms such as "center", "horizontal", "longitudinal", "level", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise", "high", "low", etc. to indicate the orientation or position relationship, it is based on the orientation and position relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as limiting the specific protection scope of the present utility model.

[0031] Please refer to Figure 1 and Figure 2 , and now a sulfur melting tank structure provided by the present utility model will be described. A sulfur melting tank structure includes a sulfur melting kettle, a stirring assembly and a coil assembly.

[0032] The sulfur melting kettle includes a kettle body 1 and an end cover 2. The end cover 2 is detachably installed at the upper end of the kettle body 1. A feed funnel 3 is arranged on the end cover 2, and a liquid discharge pipe 4 is arranged on the outer wall of the kettle body 1. The stirring assembly includes a driving motor 5, a stirring rod 6 and a stirring part. The driving motor 5 is installed on the upper end surface of the end cover 2. The stirring rod 6 is longitudinally arranged in the kettle body 1, and the upper end of the stirring rod 6 is drivingly connected to the driving motor 5. The stirring part is arranged on the stirring rod 6. The coil pipe assembly includes a plurality of U-shaped pipes 7 and a plurality of hoses 8. The plurality of U-shaped pipes 7 are circumferentially arranged on the end cover 2. The open ends of the U-shaped pipes 7 face upward and penetrate through the end cover 2 from bottom to top. The two ends of the hose 8 are detachably connected to any one of the open ends of two adjacent U-shaped pipes 7. The plurality of U-shaped pipes 7 are sequentially connected through the plurality of hoses 8. One open end of the starting U-shaped pipe 7 is connected to a steam inlet pipe 24, and one open end of the end U-shaped pipe 7 is connected to a steam discharge pipe 25.

[0033] Compared with the prior art, for the sulfur melting tank structure provided by the present utility model, high-temperature steam is introduced into the steam inlet pipe 24. After passing through the plurality of U-shaped pipes 7 and the plurality of hoses 8 in sequence, the high-temperature steam finally discharges from the steam discharge pipe 25, so that the plurality of U-shaped pipes 7 are heated by the high-temperature steam and are in a high-temperature state. Start the driving motor 5. The driving motor 5 drives the stirring part to rotate through the stirring rod 6. Solid sulfur is added into the sulfur melting kettle through the feed funnel 3. The solid sulfur is continuously stirred and subjected to high-temperature treatment in the sulfur melting kettle, and the solid sulfur is liquefied into sulfur liquid. When an individual U-shaped pipe 7 is damaged, open the end cover 2, remove the two hoses 8 corresponding to the damaged U-shaped pipe 7, pull out the damaged U-shaped pipe 7 downward, take out a new U-shaped pipe 7 and penetrate it upward through the end cover 2, and then reinstall the two removed hoses 8, and finally complete the disassembly and assembly of the damaged U-shaped pipe 7. For the sulfur melting tank structure provided by the present utility model, there is no need to disassemble or scrap the coil pipe assembly as a whole, which is not only convenient to operate, but also will not cause an increase in cost.

[0034] Please refer to Figure 4 , a first flange 9 is circumferentially arranged at the upper end of the kettle body 1, a second flange 10 is circumferentially arranged at the lower end of the end cover 2. The first flange 9 and the second flange 10 have the same shape. The first flange 9 and the second flange 10 are mutually attached and fixed by a plurality of circumferential U-shaped fasteners 11. The U-shaped fastener 11 has two clamping plates. The inner opposite surfaces of the clamping plates are stepped surfaces, which are lapped on the first flange 9 and the second flange 10 by the stepped surfaces. The outer sides of the clamping plates are penetrated and connected with locking bolts, so as to tighten the two clamping plates to clamp and fix the first flange 9 and the second flange 10. When it is necessary to disassemble the end cover 2, only need to loosen the locking bolts and remove the U-shaped fastener 11.

[0035] The stirring part includes a plurality of stirring blades 12 and a plurality of stirring frames. The plurality of stirring blades 12 are circumferentially arranged on the upper part of the stirring rod 6 and have multiple groups from top to bottom. The stirring blades 12 can disperse the solid sulfur falling into the sulfur melting kettle from the feed hopper 3 and diffuse it to the periphery to the position of the U-shaped tube 7. The plurality of stirring frames are circumferentially arranged on the lower part of the stirring rod 6 and can further break up the solid sulfur and stir the sulfur liquid.

[0036] Specifically, the stirring frame includes an upper horizontal plate 13, a lower horizontal plate 14 and an outer vertical plate 15. The upper horizontal plate 13 and the lower horizontal plate 14 are arranged at intervals from top to bottom on the lower part of the stirring rod 6. The upper end of the outer vertical plate 15 is connected to the outer end of the upper horizontal plate 13, and the lower end of the outer vertical plate 15 is connected to the outer end of the lower horizontal plate 14. A plurality of horizontally arranged flow disturbance grooves 16 are provided at the lower ends of the upper horizontal plate 13 and the lower horizontal plate 14. The upper horizontal plate 13, the lower horizontal plate 14, the outer vertical plate 15 and the stirring rod 6 together form a stirring frame structure, which can stir the sulfur liquid. In addition, the plurality of horizontally arranged flow disturbance grooves 16 located at the lower ends of the upper horizontal plate 13 and the lower horizontal plate 14 can form a flow around the sulfur liquid, which is beneficial to the melting of the solid sulfur in the sulfur liquid.

[0037] Please refer to Figure 1 and Figure 3 , the upper end of the U-shaped tube 7 has a first opening end 17 and a second opening end 18. The hose 8 connects the first opening end 17 of one U-shaped tube 7 and the second opening end 18 of the other U-shaped tube 7. The lower end of the U-shaped tube 7 has an arc-shaped closed end. The height of the arc-shaped closed end from the inner cavity bottom surface of the sulfur melting kettle is less than 1 / 5 of the total height of the inner cavity of the sulfur melting kettle, ensuring that the U-shaped tube 7 occupies no less than 4 / 5 of the space in the height direction of the sulfur melting kettle. The U-shaped tube 7 can occupy most of the space in the height direction of the sulfur melting kettle, ensuring the heating effect of the U-shaped tube 7 on the sulfur.

[0038] Preferably, a connecting pipe 19 is horizontally arranged inside the U-shaped tube 7. The connecting pipe 19 provides another channel for steam transmission between the two pipe sections of the U-shaped tube 7, avoiding the situation of air choking in the U-shaped tube 7 when condensate water remains in the arc-shaped closed end of the U-shaped tube 7 and affecting the heating effect.

[0039] Please refer to Figure 5, a drain pipe 26 is internally disposed on one side of the second opening end 18 of the U-shaped pipe 7. The lower end of the drain pipe 26 extends to the bottom of the U-shaped pipe 7. After the steam condenses, condensate will form at the bottom of the U-shaped pipe 7. As the steam continuously enters the U-shaped pipe 7, pressure will be formed at the bottom of the U-shaped pipe 7. The inner diameter of the drain pipe 26 is less than 1 / 5 of the inner diameter of the U-shaped pipe 7, and the aperture ratio difference between the two is relatively large. Under the action of the pressure, the condensate will flow along the drain pipe 26 to the second opening end 18 of the U-shaped pipe 7. The steam together with the condensate will enter the next U-shaped pipe 7 again. Finally, the cooled steam and condensate will be discharged through the steam discharge pipe 25. The drain pipe 26 can prevent the condensate from accumulating at the bottom of the U-shaped pipe 7.

[0040] Preferably, both the first opening end 17 and the second opening end 18 of the U-shaped pipe 7 are provided with tower heads for detachably connecting the flexible hose 8. The flexible hose 8 can be directly butted with the tower head, which is convenient for the quick disassembly of the flexible hose 8 and the opening end of the U-shaped pipe 7.

[0041] Please refer to Figure 3 , two annular grooves 20 are provided in the upper part of the U-shaped pipe 7. The two annular grooves 20 are respectively located below the first opening end 17 and the second opening end 18. An opening ring 21 is clamped in the annular groove 20. The opening ring 21 is located on the upper end surface of the end cover 2. After the U-shaped pipe 7 is installed on the end cover 2, the opening ring 21 can prevent the U-shaped pipe 7 from moving downward. When it is necessary to remove the U-shaped pipe 7, the opening ring 21 is taken out of the annular groove 20. At this time, the U-shaped pipe 7 can be removed from the end cover 2, which is convenient for the disassembly of the U-shaped pipe 7.

[0042] Specifically, a plurality of receiving grooves for receiving the opening ring 21 are provided on the upper end surface of the end cover 2. The opening ring 21 is located in the receiving groove. The upper end surface of the opening ring 21 does not protrude from the upper end surface of the end cover 2, which ensures aesthetics and is convenient for the installation of other components.

[0043] Please refer to Figures 1 to 3 , a plurality of strip-shaped pressing plates 22 are circumferentially arranged on the upper end surface of the end cover 2. Both ends of the strip-shaped pressing plate 22 are respectively provided with two through holes. The upper end of the U-shaped pipe 7 correspondingly penetrates through the two through holes of the strip-shaped pressing plate 22. The strip-shaped pressing plate 22 is pressed on the two opening rings 21 of the corresponding U-shaped pipe 7 and is connected to the upper end surface of the end cover 2 through a fixing bolt 23. A threaded hole is provided in the middle of the strip-shaped pressing plate 22. The fixing bolt 23 penetrates through the threaded hole and is threadedly connected to the end cover 2. The strip-shaped pressing plate 22 presses the opening ring 21 to ensure the stability of the installation of the U-shaped pipe 7.

[0044] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sulfur melting tank structure, characterized in that, Comprising: A sulfur melting kettle, the sulfur melting kettle includes a kettle body (1) and an end cover (2), the end cover (2) is detachably installed at the upper end of the kettle body (1), a feed hopper (3) is arranged on the end cover (2), and a drain pipe (4) is arranged on the outer wall of the kettle body (1); A stirring assembly, the stirring assembly includes a driving motor (5), a stirring rod (6) and a stirring part, the driving motor (5) is installed on the upper end surface of the end cover (2), the stirring rod (6) is longitudinally arranged in the kettle body (1) and the upper end of the stirring rod (6) is drivingly connected to the driving motor (5), and the stirring part is arranged on the stirring rod (6); A coil pipe assembly, the coil pipe assembly includes a plurality of U-shaped pipes (7) and a plurality of flexible pipes (8), the plurality of U-shaped pipes (7) are circumferentially arranged on the end cover (2), the open ends of the U-shaped pipes (7) face upwards and penetrate through the end cover (2) from bottom to top, the two ends of the flexible pipe (8) are detachably connected to any one of the open ends of two adjacent U-shaped pipes (7), the plurality of U-shaped pipes (7) are sequentially connected through the plurality of flexible pipes (8), one open end of the starting U-shaped pipe (7) is connected to a steam inlet pipe (24), and one open end of the terminal U-shaped pipe (7) is connected to a steam discharge pipe (25).

2. The structure of a sulfur melting tank according to claim 1, characterized in that, A first flange (9) is circumferentially arranged at the upper end of the kettle body (1), a second flange (10) is circumferentially arranged at the lower end of the end cover (2), the first flange (9) and the second flange (10) are mutually attached and fixed by a plurality of circumferential U-shaped fasteners (11).

3. The structure of a sulfur melting tank according to claim 1, characterized in that The stirring part includes: A plurality of stirring blades (12), the plurality of stirring blades (12) are circumferentially arranged on the upper part of the stirring rod (6) and have multiple groups from top to bottom; A plurality of stirring frames, the plurality of stirring frames are circumferentially arranged on the lower part of the stirring rod (6).

4. The structure of a sulfur melting tank according to claim 3, characterized in that, The stirring frame includes an upper horizontal plate (13), a lower horizontal plate (14) and an outer vertical plate (15), the upper horizontal plate (13) and the lower horizontal plate (14) are spaced apart from top to bottom on the lower part of the stirring rod (6), the upper end of the outer vertical plate (15) is connected to the outer end of the upper horizontal plate (13), the lower end of the outer vertical plate (15) is connected to the outer end of the lower horizontal plate (14), and a plurality of horizontally arranged flow disturbance grooves (16) are arranged at the lower ends of the upper horizontal plate (13) and the lower horizontal plate (14).

5. A sulfur melting tank structure according to any one of claims 1-4, characterized in that, The upper end of the U-shaped pipe (7) has a first open end (17) and a second open end (18), the flexible pipe (8) connects the first open end (17) of one U-shaped pipe (7) and the second open end (18) of another U-shaped pipe (7), the lower end of the U-shaped pipe (7) has an arc-shaped closed end, and the height of the arc-shaped closed end from the bottom surface of the inner cavity of the sulfur melting kettle is less than 1 / 5 of the total height of the inner cavity of the sulfur melting kettle.

6. The structure of a sulfur melting tank according to claim 5, characterized in that, A communicating pipe (19) is horizontally arranged inside the U-shaped pipe (7).

7. The sulfur melting tank structure according to claim 5, characterized in that, A drain condensate pipe (26) is inserted into the inside of one side of the second open end (18) of the U-shaped pipe (7), and the lower end of the drain condensate pipe extends to the bottom of the U-shaped pipe (7).

8. A sulfur melting tank structure according to claim 5, characterized in that, The upper part of the U-shaped tube (7) is provided with two annular clamping grooves (20), the two annular clamping grooves (20) are respectively located below the first opening end (17) and the second opening end (18), an opening ring (21) is clamped in the annular clamping groove (20), and the opening ring (21) is located on the upper end surface of the end cover (2).

9. A sulfur melting tank structure according to claim 8, characterized in that, The upper end surface of the end cover (2) is provided with a plurality of receiving grooves for receiving the opening ring (21).

10. A sulfur melting tank structure according to claim 8, characterized in that, A plurality of strip-shaped pressing plates (22) are circumferentially arranged on the upper end surface of the end cover (2), the upper ends of the plurality of U-shaped tubes (7) penetrate through the plurality of strip-shaped pressing plates (22) one by one, and the strip-shaped pressing plates (22) are pressed on the two opening rings (21) of the corresponding U-shaped tubes (7) and are connected to the upper end surface of the end cover (2) through fixing bolts (23).

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