Combined sulfur melting device
By integrating the melting sulfur tank, filter aid tank and refined sulfur tank into a rectangular structure, and using partitions to separate and longitudinal spiral heating coils, the existing melting fluid device has solved the problem of large land and high cost, and the equipment is compact and cost savings.
Patent Information
- Application Number
- CN202323562648.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-26
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2033-12-26
AI Technical Summary
The existing melt flow devices have large footprints and high cost of using equipment and materials due to dispersed connections.
A combined sulfur melting device was designed to integrate sulfur melting tank, filter tank and refined sulfur tank into a rectangular groove structure, and partitioned with partitions to reduce the connection between the equipment, share wall panels and top panels, and use longitudinal spiral heating disks. Pipe and stirring devices to reduce electrical and automatic control equipment.
It has achieved land area saving, reduced total equipment investment, reduced insulation workload and production costs, and improved the compactness and efficiency of the equipment.
Smart Images
Figure CN222342811U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sulfur melting devices, in particular to a combined sulfur melting device. Background Art
[0002] In the production of sulfuric acid from solid sulfur, the first step is sulfur melting. All sulfur melting equipment is equipped with steam coil heating to control the temperature at 135~145℃. The sulfur melts into liquid state, which is convenient for filtration, purification and transportation, and is also suitable for sulfur burners. Sulfur burners require that the sulfur is free of impurities, especially granular impurities.
[0003] However, the molten flow device in the prior art generally includes a molten sulfur tank, a filter aid tank and a refined sulfur tank. The tank bodies are connected by filter aid pumps, filter pumps, refined sulfur pumps and pipelines, and require a large amount of investment in corresponding automatic control bridges, cables, metal plates and electrical equipment, resulting in a large footprint and high total equipment investment cost. Utility Model Content
[0004] In order to overcome the defects of the prior art, a combined sulfur melting device is now provided to solve the problems of the large floor space occupied by the dispersed connection of equipment in the prior art melting flow device and the high cost of equipment and materials.
[0005] In order to achieve the above-mentioned purpose, a combined sulfur melting device is provided, comprising: a base and a tank body, wherein the tank body is installed at the upper end of the base, and the tank body comprises a sulfur melting tank, a filter-aid tank and a fine sulfur tank, and a filter-aid pump installation port and a diatomaceous earth inlet are provided at the upper end of the filter-aid tank, and a manhole and a stirrer installation port are provided at the upper ends of the sulfur melting tank and the filter-aid tank, the sulfur melting tank, the filter-aid tank and the fine sulfur tank are connected to form an integral rectangular tank structure, and a partition is provided between the tank cavities of the sulfur melting tank, the filter-aid tank and the fine sulfur tank, and a first heating plate is provided inside the sulfur melting tank and the filter-aid tank tube, and a second heating coil is provided inside the refined sulfur tank, the upper end of the tank body is provided with a first top plate and a second top plate, and a sulfur inlet is opened inside the first top plate on the upper side of the molten sulfur tank, and a filter pump installation port and a refined sulfur pump installation port are opened near the edge of the second top plate on the upper side of the refined sulfur tank, the outer walls of the molten sulfur tank, the filter aid tank and the refined sulfur tank are all provided with cleaning ports, and a condensate outlet and a steam inlet are provided on the first top plate and the second top plate on the upper side of each tank cavity, and the steam inlet is connected to the heating coil inside the corresponding lower tank cavity.
[0006] Furthermore, a stirring device is installed at the upper end of the agitator mounting port, and the stirring device includes a frame fixed on the upper side of the first top plate, and a motor is installed at the upper end of the frame, and a stirring shaft is connected to the lower end of the motor, and the stirring shaft is inserted downward into the inner groove cavity of the molten flow groove and the filter aid groove.
[0007] Furthermore, the partition is set as a grid structure in the refined sulfur tank, and the refined sulfur tank is divided into ten chambers of equal size and interconnected, and a stripping exhaust port is opened in the second top plate on the upper side of the refined sulfur tank.
[0008] Furthermore, a filter-aid pump is installed at the upper end of the filter-aid pump installation port, a filter pump is installed at the upper end of the filter pump installation port, and a refined sulfur pump is installed at the upper end of the refined sulfur pump installation port.
[0009] Furthermore, the partition is isolated between the molten sulfur tank and the filter aid tank, and the tank walls above the liquid surface of the molten sulfur tank and the filter aid tank are provided with a top anti-corrosion layer, and the top anti-corrosion layer is set to an acid-resistant brick anti-corrosion material.
[0010] Furthermore, the first heating coil and the second heating coil are both longitudinally arranged spiral tube structures, and two vertical conduits are led out from the upper ends of the spiral tubes, and the upper ends of the vertical conduits are connected to the steam inlet.
[0011] Furthermore, a connecting pipe penetrating the partition is installed at the lower end of the first top plate, and a bottom valve is installed at the upper end of the connecting pipe.
[0012] The beneficial effects of the utility model are:
[0013] 1. The combined sulfur melting device integrates the sulfur melting tank, filter aid tank, refined sulfur tank, filter aid pump, filter pump and refined sulfur pump, which occupies a small area, saves space and saves civil engineering foundation investment;
[0014] 2. This combined sulfur melting device reduces the connecting pipes between the various devices; the devices share the wall panels, reducing the amount of metal material used in the shell; reducing the workload of heat preservation; and reducing the total investment in equipment.
[0015] 3. The combined sulfur melting device has relatively concentrated and compact tanks, pumps and stirring devices, which reduces the amount of electrical and automatic control bridges and cables, and reduces related supporting investment;
[0016] 4. This combined sulfur melting device, except for the peripheral wall panels in contact with the environment, shares the internal wall panels (partitions, top panels), which reduces the heat dissipation area, reduces steam consumption, and saves production costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a front view cross-sectional structural schematic diagram of an embodiment of the utility model.
[0018] Figure 2 It is a schematic diagram of a top cross-sectional structure of an embodiment of the utility model.
[0019] In the figure: 1. base; 2. tank body; 3. top anti-corrosion layer; 4. first heating coil; 5. stirring device; 6. second heating coil; 7. first top plate; 8. bottom valve; 9. second top plate; 10. partition; 11. sulfur inlet; 12. cleaning port; 13. condensate outlet; 14. steam inlet; 15. agitator installation port; 16. diatomaceous earth inlet; 17. manhole; 18. filter pump installation port; 19. filter pump installation port; 20. desorption exhaust port; 21. refined sulfur pump installation port. DETAILED DESCRIPTION
[0020] Reference Figure 1 to Figure 2 As shown, the utility model provides a combined sulfur melting device, including: a base 1 and a tank body 2.
[0021] Specifically, the tank body 2 is installed on the upper end of the base 1, and the tank body 2 includes a molten sulfur tank, a filter-aid tank and a refined sulfur tank, and a filter-aid pump installation port 18 and a diatomaceous earth inlet 16 are opened at the upper end of the filter-aid tank, and a manhole 17 and an agitator installation port 15 are opened at the upper ends of the molten sulfur tank and the filter-aid tank. The molten sulfur tank, the filter-aid tank and the refined sulfur tank are connected to form an integral rectangular tank structure, and a partition 10 is provided between the tank cavities of the molten sulfur tank, the filter-aid tank and the refined sulfur tank, and a first heating coil 4 is provided inside the molten sulfur tank and the filter-aid tank, and a second heating coil 4 is provided inside the refined sulfur tank. Coil 6, a first top plate 7 and a second top plate 9 are provided at the upper end of the tank body 2, and a sulfur inlet 11 is opened inside the first top plate 7 on the upper side of the molten sulfur tank, and a filter pump installation port 19 and a refined sulfur pump installation port 21 are opened near the edge of the second top plate 9 on the upper side of the refined sulfur tank. The outer walls of the molten sulfur tank, the filter-aid tank and the refined sulfur tank are all provided with a cleaning port 12, and a condensate outlet 13 and a steam inlet 14 are provided on the first top plate 7 and the second top plate 9 on the upper side of each tank cavity, and the steam inlet 14 is connected to the heating coil inside the corresponding lower tank cavity.
[0022] In this embodiment, the base 1, the tank body 2, the heating coil, the stirring device 5, the top plate and all the pump bodies constitute the main structure of the combined sulfur melting device involved in this application.
[0023] In this embodiment, the steam coil is heated in the equipment to maintain the steam pressure at 0.5-0.6 MPa, and the temperature in the equipment is maintained at 135-145° C., and the outside needs to be kept warm.
[0024] In this embodiment, calcium oxide is added to the sulfur feed to neutralize the acidity, and the surface of the equipment below the liquid level is basically not corroded; the sulfur-containing medium volatilized above the liquid level combines with the moisture in the air to be weakly acidic, which is easy to corrode the surface of the equipment, so the surface of the equipment above the liquid level and the inner surface of the top cover must be treated with anti-corrosion. Acid-resistant tiles can be pasted, or S31603 thin stainless steel plates can be plug-welded.
[0025] In this embodiment, the heating range of the steam heating coil, radiation, heat conduction, etc. must be able to cover the entire inner cavity of the equipment, and the pipe diameter, coil diameter and height of the heating coil are set after calculation.
[0026] Specifically, a stirring device 5 is installed at the upper end of the stirrer installation port 15, and the stirring device 5 includes a frame fixed on the upper side of the first top plate 7, and a motor is installed at the upper end of the frame, and a stirring shaft is connected to the lower end of the motor, and the stirring shaft is inserted downward into the molten flow tank and the inner groove cavity of the filter-aid tank, and the partition 10 is set as a grid structure in the refined sulfur tank, and the refined sulfur tank is divided into ten chambers of equal size and interconnected with each other, and a desorption exhaust port 20 is opened in the second top plate 9 on the upper side of the refined sulfur tank, a filter-aid pump is installed at the upper end of the filter-aid pump installation port 18, and a filter pump is installed at the upper end of the filter pump installation port 19. A filter pump is installed, and a refined sulfur pump is installed at the upper end of the refined sulfur pump installation port 21. The partition 10 is isolated between the molten sulfur tank and the filter-aid tank, and the tank walls on the upper side of the liquid surface of the molten sulfur tank and the filter-aid tank are provided with a top anti-corrosion layer 3, and the top anti-corrosion layer 3 is set as an acid-resistant brick anti-corrosion material. The first heating coil 4 and the second heating coil 6 are both longitudinally arranged spiral tube structures, and two vertical conduits are led out from the upper end of the spiral tube, and the upper end of the vertical conduit is connected to the steam inlet 14. A connecting pipe penetrating the partition 10 is installed at the lower end of the first top plate 7, and a bottom valve 8 is installed at the upper end of the connecting pipe.
[0027] As a preferred embodiment, by providing a desorption exhaust port 20, it is convenient to connect a desorption pipe at the outer end, and the acid gas volatilized in the equipment is extracted by a glass fiber reinforced plastic fan and discharged after treatment, so as to purify the operating environment.
[0028] As a preferred embodiment, the sulfur connecting pipelines between all equipments are jacketed pipes. Liquid sulfur runs in the inner pipe, and 0.5-0.6MPa steam is injected into the jacket to ensure that the sulfur in the inner pipe is melted and has good fluidity.
[0029] As a preferred implementation, a stirrer is provided in the sulfur melting tank and the filter aid tank to accelerate the heat transfer and conduction speed through stirring.
[0030] When in use, solid sulfur is sent to the sulfur melting tank through a belt conveyor, and calcium oxide is added to neutralize the acidity. The sulfur is fully melted in the sulfur melting tank; it enters the filter-aid tank through the overflow port with a stainless steel wire mesh coarse filter. Larger debris in the sulfur (such as woven bag residues, stones, etc.) is left in the sulfur melting tank and cleaned regularly. The liquid sulfur in the filter-aid tank is mixed with an appropriate amount of diatomaceous earth and pumped to the liquid sulfur filter for circulation by a filter-aid pump to form a filter cake layer on the filter blades of the liquid sulfur filter; then the sulfur is filtered by a filter pump, and the impurity solid particles with smaller particle size that can flow with the liquid sulfur are gathered on the filter cake and cleaned regularly. The filtered liquid sulfur enters the refined sulfur tank, and the qualified liquid sulfur is filtered in the refined sulfur tank and pumped to the liquid sulfur tank for storage. When in use, it is pumped to the underground tank in front of the sulfur incinerator by a refined sulfur delivery pump, and finally sent from the underground tank in front of the furnace to the sulfur burner of the sulfur incinerator by a refined sulfur pump.
[0031] The combined sulfur melting device of the utility model can effectively solve the problems of large floor space occupied and high equipment and material use costs caused by the dispersed connection of equipment in the molten flow device in the prior art. It realizes the combined connection of the molten flow devices under the prior art on the basis of the existing combined sulfur melting device technology, reduces the use costs of electrical equipment and materials, and reduces the floor space occupied.
Claims
1. A combined sulfur melting device, comprising: A base (1) and a tank body (2), characterized in that: the tank body (2) is installed on the upper end of the base (1), and the tank body (2) includes a molten sulfur tank, a filter-aid tank and a refined sulfur tank, and a filter-aid pump installation port (18) and a diatomaceous earth inlet (16) are opened at the upper end of the filter-aid tank, and a manhole (17) and an agitator installation port (15) are opened at the upper ends of the molten sulfur tank and the filter-aid tank, the molten sulfur tank, the filter-aid tank and the refined sulfur tank are connected to form an integral rectangular tank structure, and a partition (10) is provided between the tank cavities of the molten sulfur tank, the filter-aid tank and the refined sulfur tank, and a first heating coil (4) is provided inside the molten sulfur tank and the filter-aid tank, and a second heating coil (4) is provided inside the refined sulfur tank. A heating coil (6), a first top plate (7) and a second top plate (9) are provided at the upper end of the tank body (2), and a sulfur inlet (11) is provided inside the first top plate (7) on the upper side of the molten sulfur tank, and a filter pump installation port (19) and a refined sulfur pump installation port (21) are provided near the edge of the second top plate (9) on the upper side of the refined sulfur tank, the outer walls of the molten sulfur tank, the filter aid tank and the refined sulfur tank are all provided with a cleaning port (12), and a condensate outlet (13) and a steam inlet (14) are provided on the first top plate (7) and the second top plate (9) on the upper side of each tank cavity, and the steam inlet (14) is connected to the heating coil inside the corresponding lower tank cavity.
2. A combined sulfur melting device according to claim 1, characterized in that: A stirring device (5) is installed at the upper end of the stirrer installation opening (15), and the stirring device (5) comprises a frame fixed to the upper side of the first top plate (7), and a motor is installed at the upper end of the frame, and a stirring shaft is connected to the lower end of the motor, and the stirring shaft is inserted downward into the inner groove cavity of the molten flow groove and the filter aid groove.
3. A combined sulfur melting device according to claim 1, characterized in that: The partition plate (10) is provided in a grid-like structure in the refined sulfur tank, and simultaneously divides the refined sulfur tank into ten chambers of equal size and interconnected with each other, and a desorption exhaust port (20) is provided in the second top plate (9) on the upper side of the refined sulfur tank.
4. A combined sulfur melting device according to claim 1, characterized in that: A filter-aid pump is installed at the upper end of the filter-aid pump installation opening (18), a filter pump is installed at the upper end of the filter pump installation opening (19), and a refined sulfur pump is installed at the upper end of the refined sulfur pump installation opening (21).
5. A combined sulfur melting device according to claim 1, characterized in that: The partition plate (10) is isolated between the sulfur melting tank and the filter aid tank, and the tank walls above the liquid surface of the sulfur melting tank and the filter aid tank are provided with a top anti-corrosion layer (3), and the top anti-corrosion layer (3) is made of acid-resistant brick anti-corrosion material.
6. A combined sulfur melting device according to claim 1, characterized in that: The first heating coil (4) and the second heating coil (6) are both longitudinally arranged spiral tube structures, and two vertical conduits are led out from the upper ends of the spiral tubes, while the upper ends of the vertical conduits are connected to the steam inlet (14).
7. A combined sulfur melting device according to claim 1, characterized in that: A connecting pipe penetrating the partition plate (10) is installed at the lower end of the first top plate (7), and a bottom valve (8) is installed at the upper end of the connecting pipe.